Search

Phytochemical investigation of the stems of Bridelia stipularis led to the isolation of a new triterpene, 3β-O-trans-feruloylfriedelinol (1), together with five known compounds, friedelin (2), 3β-friedelinol (3), lupeol (4), stigmasterol (5), and 4-(1,5-dimethyl-3-oxo-4-hexenyl)benzoic acid (6). Their structures were identified by intensive spectroscopic analysis including 1D and 2D nuclear magnetic resonance, infrared, and mass spectrometry. Compound 1 showed significant α-glucosidase inhibitory activity (IC50 = 337.49 ± 0.59 µM) close to the standard, acarbose. Furthermore, the structure activity relationship of 1 was analyzed by molecular docking studies. In addition, the molecular docking results showed that the interaction between 1 and the active site occurred through hydrophobic forces and hydrogen bonds. [ABSTRACT FROM AUTHOR]

Objectives: The genus Glochidion (the family Phyllanthaceae) is used for various medicinal purposes, such as dysentery, diarrhea, cough, and skin protection. A review of phytochemical and pharmacological aspects for this remains unavailable. The current study tends to sum up a detailed list of phytochemicals, and their role in biological examinations. Methods: References in English were obtained by an extensive search across various electronic data sources, encompassing Web of Science, PubMed, Google Scholar, and Science Direct. The "Sci-Finder" was also utilized to find references and revise chemical structures. Referenced documents have been gathered from the 1960s to date. It also noted that Glochidion, phytochemistry, and pharmacology are likely the keywords to seek for references. Results: Over 240 naturally occurring phytochemicals were isolated and identified from various Glochidion tissues, including terpenoids, sterols, saponins, lignans, flavonoids, mono -phenols, megastigmanes, butenolides, glycosides, alkaloids, cyanogens, tocopherols, fatty acids, and others. Three naturally occurring triterpenoids glochidonol, glochidiol, and glochidone are the likely characteristic metabolites, being isolated frequently. Glochidion crude extracts and their isolated compounds have been demonstrated as potential agents in various pharmacological targets, such as cytotoxicity, antioxidant, antiinflammation, and neuron and liver protection. Conclusion: Several isolates acted as promising agents in pharmacological assays. The anticancer mechanisms of various triterpenoids and saponins, especially new and potential compounds, are expected. Pharmacological advancements to enhance the efficacies of Glochidion constituents, such as synergistic combinations and nano-drug formulations, are encouraged. [ABSTRACT FROM AUTHOR]

Phyllanthus emblica L. (syn. Emblica officinalis) fruits have been traditionally exploited to enhance the immune system and provide protection against bacterial and fungal diseases. The present study aimed to evaluate the synergistic interactions between chloramphenicol and several phenolic compounds found in P. emblica fruits against bacterial strains. The combination of P. emblica fruit extracts and its phenolic compounds demonstrated synergistic antibacterial activity when used in conjunction with chloramphenicol against both Gram-positive and Gram-negative bacteria. The combination of MICGA with ½MICChl exhibited a significant increase in bioactivity, with a 333.33-fold enhancement against B. subtilis. Similarly, the combination of MICGA with 2MICChl displayed a bioactivity enhancement of 16.02 folds against S. aureus. The co-administration of ½MICQ and ½MICChl resulted in a significant 35.71-fold increase in bioactivity against P. aeruginosa. Similarly, the combination of MIC GA and ½MICChl exhibited a remarkable 166.66-fold enhancement in bioactivity against E. coli. The combinations of 2MICFPE and ½MICChloramphenicol, as well as ½MICGA and ½MICChl demonstrated the highest bioactivity enhancement of 17.85 folds for K. pneumoniae. This study claimed that the fruit extracts of P. emblica and its phenolic compounds could be utilized to augment the effectiveness of conventional antibiotics, which have acquired resistance to bacterial infections. [ABSTRACT FROM AUTHOR]

Abstract Chrozophora sabulosa Kar. & Kir. is a biennial herbaceous plant that belongs to the Euphorbiaceae family and has medicinal properties. This research aimed to identify the genetic characteristics and phylogenetic position of the Chrozophora genus within the Euphorbiaceae family. The evolutionary position of the Chrozophora genus was previously unknown due to insufficient research. Therefore, to determine the evolutionary link between C. sabulosa and other related species, we conducted a study using the NGS Illumina platform to sequence the C. sabulosa chloroplast (cp.) genome. The study results showed that the genome was 156,488 bp in length. It had a quadripartite structure consisting of two inverted repeats (IRb and IRa) of 24,649-bp, separated by an 87,696-bp LSC region and a 19,494-bp SSC region. The CP genome contained 113 unique genes, including four rRNA genes, 30 tRNA genes, and 79 CDS genes. In the second copy of the inverted repeat, there were 18 duplicated genes. The C. sabulosa lacks the petD, petB, rpl2, and rps16 intron. The analysis of simple sequence repeats (SSRs) revealed 93 SSR loci of 22 types and 78 oligonucleotide repeats of four kinds. The phylogenetic investigation showed that the Chrozophora genus evolved paraphyletically from other members of the Euphorbiaceae family. To support the phylogenetic findings, we selected species from the Euphorbiaceae and Phyllanthaceae families to compare with C. sabulosa for Ks and Ka substitution rates, InDels investigation, IR contraction and expansion, and SNPs analysis. The results of these comparative studies align with the phylogenetic findings. We identified six highly polymorphic regions shared by both families, which could be used as molecular identifiers for the Chrozophora genus (rpl33-rps18, rps18-rpl20, rps15-ycf1, ndhG-ndhI, psaI-ycf4, petA-psbJ). The cp. genome sequence of C. sabulosa reveals the evolution of plastid sequences in Chrozophora species. This is the first time the cp. genome of a Chrozophora genus has been sequenced, serving as a foundation for future sequencing of other species within the Chrozophoreae tribe and facilitating in-depth taxonomic research. The results of this research will also aid in identifying new Chrozophora species.

SUMMARY: The Phyllanthaceae family comprises a diverse range of plants with medicinal, edible, and ornamental value, extensively cultivated worldwide. Polyploid species commonly occur in Phyllanthaceae. Due to the rather complex genomes and evolutionary histories, their speciation process has been still lacking in research. In this study, we generated chromosome‐scale haplotype‐resolved genomes of two octoploid species (Phyllanthus emblica and Sauropus spatulifolius) in Phyllanthaceae family. Combined with our previously reported one tetraploid (Sauropus androgynus) and one diploid species (Phyllanthus cochinchinensis) from the same family, we explored their speciation history. The three polyploid species were all identified as allopolyploids with subgenome A/B. Each of their two distinct subgenome groups from various species was uncovered to independently share a common diploid ancestor (Ancestor‐AA and Ancestor‐BB). Via different evolutionary routes, comprising various scenarios of bifurcating divergence, allopolyploidization (hybrid polyploidization), and autopolyploidization, they finally evolved to the current tetraploid S. androgynus, and octoploid S. spatulifolius and P. emblica, respectively. We further discuss the variations in copy number of alleles and the potential impacts within the two octoploids. In addition, we also investigated the fluctuation of metabolites with medical values and identified the key factor in its biosynthesis process in octoploids species. Our study reconstructed the evolutionary history of these Phyllanthaceae species, highlighting the critical roles of polyploidization and hybridization in their speciation processes. The high‐quality genomes of the two octoploid species provide valuable genomic resources for further research of evolution and functional genomics. Significance Statement: Our study reconstructed the evolutionary history of these Phyllanthaceae species, highlighting the critical roles of polyploidization and hybridization in their speciation processes. [ABSTRACT FROM AUTHOR]

Six lupane triterpenoids (1–6), including an undescribed one, 3,23-di-O-isopropylidene-lup-20(29)-ene (1), along with two oleane triterpenoids (7, 8), were isolated from the Zhuang ethnic medicinal plant Glochidion eriocarpum. Their structures were identified based on comprehensive NMR, MS, and physiochemical data analysis. Compounds 2, 7, and 8 significantly inhibited the production of nitride oxide (NO) of the LPS-induced RAW 264.7 cells, which may be attributed to the anti-inflammatory activity of this plant. [ABSTRACT FROM AUTHOR]

A new species of Emblica Gaertn. (Phyllanthaceae), E. chakrabartyi sp. nov. from the southern part of the Western Ghats, India is described here along with data on distribution, phenology and colour photographs. A key to the species of Emblica in India is also provided. The new species is allied to Emblica anamalayana, but differs in habit, urceolate staminate flowers with short pedicel, inner tepals of staminate flower larger than outer, short anthers which are equal in length to its column, three distinct deeply bifid styles, shape of capsule and its styles and black lineolate smooth seeds. [ABSTRACT FROM AUTHOR]

Plant mediated green synthetic route for silver and gold nanoparticles (AgNPs & AuNPs) from four plant families: Phyllanthaceae, Lamiaceae, Rutaceae and Euphorbiaceae and their therapeutic application of are summarized in the present review article. Silver and gold nanoparticles prepared from the mentioned plant families were visualized with various therapeutic applications viz., anti-microbial, ant-bacterial, anti-cancer and anti-oxidant activities etc. Owing to size and shapes, NPs green synthesized from various plants like Ricinus communis (Ag), Tectona grandis (Ag), Plectranthus amboinicus (Ag, Au), Phyllanthus emblica (Ag, Au), Ricinu communis (Ag), Leucas aspera (Ag, Au), Acalypha indica Linn. (Ag, Au) were envisioned with innumerable curative applications such as antimicrobial, anticancer, antibacterial, anti-oxidant, cytotoxicity, haemolytic and stimulating effect etc. In the current review, eco-friendly green synthetic itineraries for synthesis of AgNPs and AuNPs are mainly focused. Phyto-components present in plants such as anti-oxidant molecules, terpenes, alkaloids, coumarins like quercetin, d -allose, 1-valine, ocosenamide molecules etc. are the responsible reducing agents for the capping reaction (Ag+ to Ag0 and Au3+ to Au0) of nanoparticle from metal precursors like AgNO 3 and HAuCl 4. [Display omitted] • Bio-synthesis of AgNPs and AuNPs from four plant families: Phyllanthaceae, Lamiaceae, Rutaceae and Euphorbiaceae are summarized. • AgNPs and AuNPs green synthesized from plants belonging to Phyllanthaceae, Lamiaceae, Rutaceae and Euphorbiaceae families contain various medicinal applications like antimicrobial, anticancer, antibacterial, anti-oxidant, cytotoxicity etc. • Phyto-compounds present in plants are responsible for capping reaction of nano-particles. [ABSTRACT FROM AUTHOR]

Copyright of Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas is the property of Universidad de Santiago de Chile and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Sauropus androgynus (S. androgynus) (2n = 4x = 52) is one of the most popular functional leafy vegetables in South and Southeast Asia. With its rich nutritional and pharmaceutical values, it has traditionally had widespread use for dietary and herbal purposes. Here, the genome of S. androgynus was sequenced and assembled, revealing a genome size of 1.55 Gb with 26 pseudo-chromosomes. Phylogenetic analysis traced back the divergence of Sauropus from Phyllanthus to approximately 29.67 million years ago (Mya). Genome analysis revealed that S. androgynus polyploidized around 20.51 Mya and shared a γ event about 132.95 Mya. Gene function analysis suggested that the expansion of pathways related to phloem development, lignin biosynthesis, and photosynthesis tended to result in the morphological differences among species within the Phyllanthaceae family, characterized by varying ploidy levels. The high accumulation of ascorbic acid in S. androgynus was attributed to the high expression of genes associated with the L-galactose pathway and recycling pathway. Moreover, the expanded gene families of S. androgynus exhibited multiple biochemical pathways associated with its comprehensive pharmacological activity, geographic adaptation and distinctive pleasurable flavor. Altogether, our findings represent a crucial genomic asset for S. androgynus, casting light on the intricate ploidy within the Phyllanthaceae family. [ABSTRACT FROM AUTHOR]

Over the past decade, plant derived herbal medicines have become a worldwide concern. This study explored the anti-oxidant, cytotoxic and hepatoprotective potential of the fruit of Bridelia tomentosa. The ethanolic extract of Bridelia tomentosa fruits was evaluated for in-vitro antioxidant, cytotoxic and hepato-protective properties in Sprague-Dawley male rats. Total phenol, flavonoid and antioxidant capacity of the plant extract were extimated as 99.04145 ± 1.195mg/g GAE, 126.5046 ± 3.095mg/g QE and 372.094 ± 3.148 mg/g AAE. The extract showed good inhibitory potential of DPPH free radical (IC50 = 30.579 ± 1.895 µg/ml) and exhibited poor cytotoxic potential (LC50 = 537.693 ± 70.099 µg/ml). The fruit extract of Bridelia tomentosa was found safe at 6000mg/kg BW dose in rats. Bridelia tomentosa fruit extract was administered at two different doses (250mg/kg-body weight and 500mg/kg-body weight) in Sprague-Dawley male rats and improved all the hepatic parameters in paracetamol induced hepatic injury and highest effect was observed at 500mg/kg BW dose. At 500mg/kg BW dose, the fruit extract, reduced the ALT, AST and ALP level to 38.250 ± 1.652, 25.500 ± 2.754 and 139.250 ± 10.515 µ/L (p< 0.05) respectively. The fruit extract also moderately decreased total bilirubin level. The fruit extract was able to reverse the effect of hepatic damage caused by paracetamol significantly as evidenced from histopathological examination. Fruits of Bridelia tomentosa could be a good source of newer antioxidant and hepato-protective agents and isolation of potent bioactive compounds are highly suggested. [ABSTRACT FROM AUTHOR]

Based field works, specimen collections and lots of literatures reading, we found a newly recorded species of Phyllanthaceae from China——Sauropus racemosus Beille. It differs from other species of Sauropus in having glabrous young branches, glabrous leaves, racemoses 3 to 5 clustered on the lower part of the old stem branchlets. In this paper, a detailed description, color photographs and geographical distribution of S. racemosus are given. In addition, we consider S. racemosus as ‘Endangered’ (EN) based on the IUCN categories and criteria. The discovery of S. racemosus enriched the diversity of plant species in the Sino-Vietnanese border area. It reflects that the Sino-Vietnanese border area are biodiversity hotspots in the world and key areas for biodiversity conservation. It also shows that the plant investigation in this area is not enough, and further investigation and research are needed.

Introduction: This study describes the molecular profile and the potential antiviral activity of extracts from Phyllanthus brasiliensis, a plant widely found in the Brazilian Amazon. The research aims to shed light on the potential use of this species as a natural antiviral agent. Methods: The extracts were analysed using liquid chromatography–mass spectrometry (LC–MS) system, a potent analytical technique to discover drug candidates. In the meantime, in vitro antiviral assays were performed against Mayaro, Oropouche, Chikungunya, and Zika viruses. In addition, the antiviral activity of annotated compounds was predicted by in silico methods. Results: Overall, 44 compounds were annotated in this study. The results revealed that P. brasiliensis has a high content of fatty acids, flavones, flavan‐3‐ols, and lignans. Furthermore, in vitro assays revealed potent antiviral activity against different arboviruses, especially lignan‐rich extracts against Zika virus (ZIKV), as follows: methanolic extract from bark (MEB) [effective concentration for 50% of the cells (EC50) = 0.80 μg/mL, selectivity index (SI) = 377.59], methanolic extract from the leaf (MEL) (EC50 = 0.84 μg/mL, SI = 297.62), and hydroalcoholic extract from the leaf (HEL) (EC50 = 1.36 μg/mL, SI = 735.29). These results were supported by interesting in silico prediction, where tuberculatin (a lignan) showed a high antiviral activity score. Conclusions: Phyllanthus brasiliensis extracts contain metabolites that could be a new kick‐off point for the discovery of candidates for antiviral drug development, with lignans becoming a promising trend for further virology research. The study explores the antiviral activity of extracts from Phyllanthus brasiliensis against Mayaro, Oropouche, Chikungunya, and Zika viruses. A total of 44 compounds were annotated, including fatty acids, flavones, flavan‐3‐ols, and lignans. The lignan‐rich extracts showed potent antiviral activity, particularly against the Zika virus. In silico antiviral prediction suggested tuberculatin (a lignan) as a strong antiviral candidate. Hence, the study suggests that P. brasiliensis could be a promising source for the development of antiviral drugs, particularly those containing lignans. [ABSTRACT FROM AUTHOR]

Based field works, specimen collections and lots of literatures reading, we found a newly recorded species of Phyllanthaceae from China——Sauropus racemosus Beille. It differs from other species of Sauropus in having glabrous young branches, glabrous leaves, racemoses 3 to 5 clustered on the lower part of the old stem branchlets. In this paper, a detailed description, color photographs and geographical distribution of S. racemosus are given. In addition, we consider S. racemosus as ‘Endangered'(EN)based on the IUCN categories and criteria. The discovery of S. racemosus enriched the diversity of plant species in the Sino-Vietnanese border area. It reflects that the Sino-Vietnanese border area are biodiversity hotspots in the world and key areas for biodiversity conservation. It also shows that the plant investigation in this area is not enough, and further investigation and research are needed. [ABSTRACT FROM AUTHOR]

Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease showing an exponential increase in its prevalence all over the world. High blood glucose level is one of the main clinical signs of the disease. Although several classes of drugs are available for treatment, their prolonged use and adverse effects behoove the use of alternative medicine. Plant-derived natural products have multifaceted beneficial roles in human pathophysiology. Plant metabolites like tannins, organic acids, polyphenols, terpenes, and flavonoids show multiple mechanisms of action against diabetes. The fruits of Emblica officinalis (EOF), also known as Indian gooseberry (amla), contain several phytochemicals, potentially having anti-diabetic activity. Hydrolyzable tannins are the major bioactive components of the amla fruit, the most abundant hydrolyzable tannin being β-glucogallin. The present review summarizes the mechanism of action and clinical evidence for the beneficial effects of EOF on T2DM and its associated complications. [ABSTRACT FROM AUTHOR]

Eleven flavonoids including one new flavonol glycoside, quercetin-3-O-(2-α-L-rhamnopyranosyl)-β-D-glucuronopyranosyl methyl ester (1), were isolated for the first time from the fruits of Phyllanthus acidus (L.) Skeels (Phyllanthaceae). Their structures were determined by extensive spectroscopic data. The known flavonoids, quercetin-3-O-β-D-glucuronide methyl ester (3), quercetin-3-O-(2''-α-L-rhamnopyranosyl-6''-O-α-L-rhamno pyranosyl)-β-D-glucopyranoside (5), myricetin (9), and 6-methoxy-naringenin (11) were isolated for the first time from the genus Phyllanthus. Flavonoids 4, 6 and 9 (IC50 = 6.01, 6.32, and 7.84 μM, respectively) showed stronger α-glucosidase inhibitory activities than the positive control, acarbose (IC50 = 306.45 μM). The fruits of P. acidus might be further developed as an anti-diabetic food supplement. [ABSTRACT FROM AUTHOR]

Phyllanthus acidus (L.) Skeels (Phyllanthaceae) is a potential medicinal plant recognized for its sour and tart tasted fruits. In this study, the chloroplast genome of P. acidus was sequenced, assembled, and characterized. The chloroplast genome size was 156,331 bp and the overall GC content was 36.9%. Additionally, the chloroplast genome had a quadripartite structure consisting of a large single copy (LSC; 85,807 bp in length; GC content: 34.6%), a small single copy (SSC; 19,262 bp in length; GC content: 30.6%), and two inverted repeat regions (IR; 25,631 bp in length; GC content: 43.1%). A total of 113 unique genes were annotated in the chloroplast genome, comprising 79 protein-coding genes, 30 tRNAs, and four rRNAs. The phylogenetic analysis based on 79 protein-coding genes revealed the paraphyly of the Phyllanthus genus. These findings provided additional genetic information for further research on P. acidus and the cp genome in the Phyllanthaceae family.

A new species of Amanoa (Phyllanthaceae) is described from the sandstone Nangaritza Plateau in the Cordillera del Cóndor Region in southern Ecuador. Amanoa condorensis J.L.Clark & D.A.Neill is a small tree, 4 m tall that is only known from the type collection. The new species is distinct by a shrub habit, presence of coriaceous leaves with an acuminate apex, and congested inflorescences. The relatively high elevation of the type locality, presence of an androphore, and the habit as shrub or low tree are an unusual combination for Amanoa. The conservation status of A. condorensis is assessed as Critically Endangered (CR), based on IUCN Criteria. [ABSTRACT FROM AUTHOR]

Sauropus androgynus (S. androgynus) (2n = 4x = 52) is one of the most popular functional leafy vegetables in South and Southeast Asia. With its rich nutritional and pharmaceutical values, it has traditionally had widespread use for dietary and herbal purposes. Here, the genome of S. androgynus was sequenced and assembled, revealing a genome size of 1.55 Gb with 26 pseudo-chromosomes. Phylogenetic analysis traced back the divergence of Sauropus from Phyllanthus to approximately 29.67 million years ago (Mya). Genome analysis revealed that S. androgynus polyploidized around 20.51 Mya and shared a γ event about 132.95 Mya. Gene function analysis suggested that the expansion of pathways related to phloem development, lignin biosynthesis, and photosynthesis tended to result in the morphological differences among species within the Phyllanthaceae family, characterized by varying ploidy levels. The high accumulation of ascorbic acid in S. androgynus was attributed to the high expression of genes associated with the L-galactose pathway and recycling pathway. Moreover, the expanded gene families of S. androgynus exhibited multiple biochemical pathways associated with its comprehensive pharmacological activity, geographic adaptation and distinctive pleasurable flavor. Altogether, our findings represent a crucial genomic asset for S. androgynus, casting light on the intricate ploidy within the Phyllanthaceae family.

Glochidion (Phyllanthaceae; leafflower trees) is a genus of trees which is widely reported to be pollinated by leafflower moths (Gracillariidae: Epicephala) in temperate and subtropical Asia, Australia, and the Pacific islands. However, the pollination ecology of Glochidion is not well described from tropical Asia, the region where it is most species-rich at both local (≤9 spp.) and regional (~200 spp.) scales. Here we report investigations of pollination biology and species-specificity of five Glochidion species in tropical Southeast Asia (Cambodia). Through nocturnal observations and fruit dissections, we find that at least three and likely five Glochidion species in Cambodia are pollinated by seed-parasitic leafflower moths. We find no evidence that any of these leafflower moths are non-mutualistic parasites, despite known examples of such parasites of this mutualism elsewhere in Asia. While the presence of a single larva in a fruit results in only a fraction of seeds being consumed, the presence of more than one larva per fruit—a frequent occurrence in some species—can result in almost all seeds within the fruit being infested. Multilocus phylogenetic analysis indicates that there are five different minimally monophyletic leafflower moth clades, each of which pollinates a unique Glochidion host species. Our results indicate that in its center of diversity in tropical Asia this system is an obligate pollination mutualism as previously described at the global margins of its distribution. These findings provide insights into the processes that generate and maintain biodiversity and maintain mutualism stability in plant–insect interactions in this biodiversity hotspot.

Plants are still the preferred solution to solve several of the main problems the world is facing today, such as antibiotic resistance and free radicals. The plant chemical compounds have the potential as antibacterial and antioxidant agents. Therefore, four plants representing Phyllantaceae family (Glochidion varians Miq., Glochidion zeylanicum (Gaertn.) A.Juss) and two plants from Rubiaceae family (Uncaria lanosa var. glabrata, and Uncaria cordata (Lour.) Merr.) were collected from Simeulue island, Aceh. We obtained 32 extracts from several plants with various solvents, such as hexane, dichloromethane, ethyl acetate, and methanol. The methods applied to investigate antibacterial activities were Thin Layer Chromatography (TLC) and Minimum Inhibitory Concentration (MIC). Meanwhile, TLC and Microdilution Assay were utilized to analyze antioxidant capacity against 1,1-diphenyl-2-picrylhydrazyl (DPPH). The result of antibacterial activity shows 32 extracts displayed very strong to weak activity against Staphylococcus aureus and Escherichia coli. Among all extracts, methanol extracts of G. varians (stem and leaf), methanol extracts of G. zeylanicum (stem and leaf), methanol and ethyl acetate extracts of U. cordata (leaf), and ethyl acetate extract of G. varians (leaf) indicate potent antioxidant activity with the range of antioxidant activity index (AAI) values of 2.16 -11.73. Furthermore, all extracts exhibit moderate to weak antibacterial evaluation. The methanol extract of G. varians stem has the highest MIC value of 128 µg/ml against S. aureus. The methanol extracts of G. varians stem and leaf and methanol extract of G. zeylanicum leaf against E. coli have MIC value of 256 µg/ml, whereas other extracts have >256 µg/ml MIC value. To sum up, four plants from Phylantaceae and Rubiaceae families have the potential to be expanded as antioxidant agents rather than antibacterial agents.

The genus Breynia (family Phyllanthaceae) is widely distributed in Australia, Vietnam, Malaysia, and some regions of India. Traditionally, species of this genus were used to treat various disorders, like skin diseases, pain, cough, tonsillitis, dysentery, and headache. Various studies about this genus are available, but reviews highlighting its pharmacology and phytochemistry are inadequate. This review highlights the pharmacology, phytochemistry, and chemotaxonomic classification of the phytochemicals of ten species of the genus Breynia. About 90 compounds have been isolated from Breynia species, including glycosides, flavonoids, terpenoids, steroids, alkaloids, lignans, phenolic compounds, and catechins. Their structure and presence in each species are presented in tabular form. In pharmacological medicines, the crude extracts and metabolites of the genus Breynia have been found to exhibit diverse biological activity, including, antioxidant, antimicrobial, antidiabetic, anti-inflammatory, anticancer, antiviral, and activity against various blood disorders. Few isolated compounds show enzyme inhibitory activity (tyrosinase, xanthine oxidase, and elastase inhibition). [ABSTRACT FROM AUTHOR]

The species Glochidion arborescens Blume has long been considered to be widely distributed in Yunnan Province, China. Based on years of extensive specimen examinations and field investigations, we demonstrated that all the Chinese specimens previously identified as G. arborescens mostly belonged to G. heyneanum(Wight & Arn.)Wight, while several others belonged to G. acuminatum var. acuminatum Müll. Arg., G. eriocarpum Champ. ex Benth., G. lancolarium(Roxb.)Voigt or G. zeylanicum var. tomentosum(Dalzell)Trimen. G. arborescens is not found to China and thus the distribution of the species in China is excluded. In addition, a lectotype of G. arborescens is specified, and a species key of G. arborescens and relevant misidentified species is provided. [ABSTRACT FROM AUTHOR]

Plants with a small number of specific pollinators may be vulnerable to fluctuations in the availability of those pollinators, which could limit plant reproductive success and even result in extinction. Plants can develop mechanisms to mitigate this risk, such as apomixis. Reproductive assurance mechanisms have been largely ignored in obligate pollination mutualisms (OPMs), that are some of the most specialised of plant-pollinator interactions. Furthermore, although OPMs are often referred to as obligate, this is rarely tested. We performed a flower-bagging experiment to test if the unisexual flowers of Breynia oblongifolia could set fruit in the absence of its highly specialised seed-eating moth pollinators. Surprisingly, many bagged female flowers developed fruits, suggesting apomixis. We therefore conducted a second series of experiments in which we 1) added or excluded pollinators from caged plants; and 2) surveyed a wild population for apomictic reproduction using mother-offspring genotyping. In the absence of pollinators, no fruits developed. In addition, we detected no genetic evidence for apomixis when comparing between mothers and their offspring or between adults in a wild population. We explain the production of fruits in bagged branches by our discovery that B. oblongifolia can retain pollinated female flowers over the winter period. These flowers develop to fruits in the spring in the absence of male flowers or pollinators. Our study thus shows that B. oblongifolia is unable to produce fruit in the absence of its specialist moth pollinators. Thus, the highly specific interaction between plant and pollinators appears to be truly obligate.

ABSTRACT Two new species of Pucciniales fungi on plants of the Fabid clade are described from samples deposited in the herbarium of Museu Paraense Emilio Goeldi, collected in the state of Amapá, in the Brazilian Amazon. They are Aecidium margaritariae found on Margaritaria nobilis (Phyllanthaceae), and Uromyces amapaensis on Jatropha gossypiifolia (Euphorbiaceae). The microstructures of the specimens were analyzed using optical and scanning electron microscopy. Aecidium margaritariae is characterized by the presence of globose, subglobose to slightly ellipsoid aeciospores with warty walls and smooth areas usually in the basal portion. Uromyces amapaensis is distinguished by the presence of uredinia with paraphyses which are thickened and rounded at the tip, and pedicellate and smooth teliospores. Descriptions, illustrations, and taxonomic comments are presented for each species.

The aims and objectives of the study were to evaluate the antiParkinson's (PD) potential of B cernua (BCE). B cernua (Poir.) Müll. Arg. (B cernua) is a member of the Phyllanthaceae family. HPLC revealed the presence of various phytochemicals. Study was conducted for 40 days. After PD induction by paraquat behavioural studies were carried out. Biochemical parameters such as DPPH, NO-scavenging, Ferrous reducing power, MDA, GSH, CAT, SOD, acetylcholinesterase (AChE), neurotransmitter estimation and TNF-α and IL-6 levels were determined. DPPH, NO-scavenging and Ferrous reducing power assays showed 78.02%, 48.05% and 71.45% inhibitions, respectively. There was significant improvement in motor functions and coordination in a dose-dependent manner (50 < 250 < 500 mg/kg) in PD rat model. Biochemical markers; SOD, CAT, GPx and GSH showed significant restoration (P <.001) while MDA showed significant decrease (P <.05). The AChE level was significantly reduced (P <.05) at 500 mg/kg while neurotransmitters were significantly improved (P <.001) in a dose-dependent fashion. The ELISA results showed significant (P <.001) down-regulation of IL-6 and TNF-α level. In conclusion, it is suggested that BCE has the potential to reduce the symptoms of PD. [ABSTRACT FROM AUTHOR]

Context: Monoecious plants can adjust their proportional investment in male and female flowers to maximise reproductive fitness. The female reproductive function (seeds) often has greater resource costs than the male (pollen). Larger plants are generally thought to have greater resource availability and should have a female biased sex ratio, referred to as the size-dependent selection hypothesis. However, empirical tests of this hypothesis have found mixed support. This may be because size alone is not always a reliable proximate value for resource availability, which can be influenced by other abiotic factors. Aims: Breynia oblongifolia (Phyllanthaceae) is a perennial monoecious plant with unisexual moth-pollinated flowers from eastern Australia. Fruit production in Breynia is heavily influenced by rainfall, which is highly variable. We hypothesised that where soil moisture limits female function, Breynia would produce more male flowers (i.e. resource-dependent selection). Methods: We used a multi-year observational dataset to look for evidence of resource-dependent flower sex ratios in a wild population and conducted a manipulative glasshouse experiment to test alternative hypotheses for flower sex selection. Key results: In both our manipulative glasshouse experiment and observed wild population, decreasing soil water content resulted in higher proportions of male flowers, supporting the resource-dependent sex selection hypothesis. Conclusions: Soil moisture influences flower sex ratios but plant size does not. Implications: Future studies should not assume that height equates to resource wealth, as this is often overly simplistic and ignores the potential for key resources, like soil moisture or light, to fluctuate. [ABSTRACT FROM AUTHOR]

Three new species of Breynia are described for Malesia, B. longistyla from Borneo, B. papillosa from New Guinea, and B. suborbicularis from Sulawesi. They are primarily distinguished by characters of indumentum, leaves, and styles. Ten lectotypes and one neotype are designated, and one new synonym is proposed. [ABSTRACT FROM AUTHOR]

Three new glycosides, named as saurobaccioside A (1), saurobaccioside B (2), saurobaccioside C (3), together with five known magastigmanes, canangaionoside (4), (6S,9S)-roseoside (5), cucumegastigmane I (6), icariside B5 (7), linarionoside A (8) were isolated from the whole plant of Sauropus bacciformis (L.) Airy Shaw. Their structures were established by extensive spectroscopic analysis (UV, IR, HR-ESI-MS and NMR) and by comparison of the spectral data with those reported in the literature. The absolute configurations of compounds 2 and 3 were elucidated by experimental CD spectra. Compounds 1-8 were screened their cytotoxic activities towards CAL27 and MDAMB231 cancer cell lines. Compound 1 exhibited significant cytotoxic activity towards CAL27 and MDAMB231 cell lines with IC50 values of 3.21 ± 0.23 and 4.75 ± 0.17 µM, respectively, which were smaller than those of positive control capecitabine (IC50: 8.20 ± 0.75 and 5.20 ± 0.89 µM). Other compounds (2-8) were inactive. [ABSTRACT FROM AUTHOR]

A new diterpenoid, phyllane C (1), along with three known compounds, ovoideal E (2), spruceanol (3), and fluacinoid B (4) were isolated from the leaves of Phyllanthus acidus growing in Thailand. The structures were determined by analysis of their MS and NMR data as well as by comparison with literature values. DFT-NMR chemical shift calculations and subsequent DP4/DP4+ probability methods were applied to define the relative configuration of 1. Compound 3 showed a weak cytotoxicity against K562 cell line (IC50 41.9 ± 2.31 µg/mL). [ABSTRACT FROM AUTHOR]

A revision of Leptopus and Notoleptopus (Phyllanthaceae tribe Poranthereae) in Malesia is presented. Both genera are present with a single species in Malesia, L. australis and N. decasnei, respectively. Phylogenetically the two genera are distinct, but morphologically their differences are minimal. Nomenclature, descriptions, distributions and various notes are presented, just as a technical drawing of both species. [ABSTRACT FROM AUTHOR]

A new norlupane triterpenoid, 29-norlupane-1β-hydroxy-3,20-dione (1), along with ten known compounds, 29-norlup-1-ene-3,20-dione (2), phyllanthol (3), phyllanthone (4), glochidone (5), lupeol (6), lupeone (7), 4-hydroxybenzoic acid (8), 4-hydroxybenzaldehyde (9), phyllane A (10) and methyl β-orsellinate (11) were isolated the twigs and leaves of Phyllanthus acidus. The structure of 1 was identified by interpretation of their spectroscopic data and comparison with those reported in the literature. In addition, all isolated compounds 1–11 were evaluated for their antioxidant activity. [ABSTRACT FROM AUTHOR]

Lead toxicity and related health issues have become global concern due to increased use of lead-based products in the modern world. Though attempts are being made to tackle this malady through many ways, the use of naturally occurring materials that are available locally is a subtle approach. In this investigation, the fruits of E. officinalis (EO) were studied for their potential in overcoming biochemical and hematological alterations caused by metallic lead in rat model. Four groups of rats, each containing six animals, were considered for the study. Group I served as normal control while to other groups (II-IV), metallic lead powder (100 ppm/rat) was orally administrated for 30 consecutive days. From day 31, the animals in groups III and IV were treated with EO in doses of 50 and 100 mg/kg body weight (p. o.), respectively, for the following seven days. Group II served as lead-treated control. On day 38, the animals in all groups were sacrificed and the blood was collected and serum separated. The changes in biochemical (aspartate aminotrasferase, alanine aminotrasferase, alkaline phosphatase, gamma glutamyltrasferase, total cholesterol, triglycerides, urea, creatinine and calcium) and hematological (red blood cell count, white blood cell count, hemoglobin, packed cell volume and platelet count) parameters were estimated. Lead treated animals in Group - II showed appreciable changes in hematological and biochemical parameters. Treatment with EO (50 and 100 mg/kg) significantly restored the changes in the above parameters to near normal values implying that the fruit of E. officinalis is an effective natural material to overcome widespread lead toxicity. This observation is further supported by histopathological studies of liver and kidney tissues wherein the distorted architecture, degeneration and other changes found in lead-treated animals were brought back to near normal stages by the treatment of EO. [ABSTRACT FROM AUTHOR]

Leptopus malipoensis, a new species of Phyllanthaceae from Southeast Yunnan Province, China, is described. The phylogenetic position of the new species within the genus Leptopus was analyzed based on nuclear ribosomal Internal Transcribed Spacer (nrITS) and plastid matK sequence data. The results show that L. malipoensis is highly supported to be the sister of L. fangdingianus (P. T. Li) Voronts. & Petra Hoff., a species endemic to western Guangxi Province, China. Morphologically, the new species can be distinguished from all known congeneric taxa by its long and slim branches usually pendulous or procumbent, some of its leaf laminas up to 15 cm long and 7 cm wide. It further differs from its sister species by its hirsute stems, leaves and pedicel of female flowers, longer pedicel of male flowers, 3-locular ovary and three styles. A key to all 10 accepted Leptopus species is provided.

The hair care polyherbal formulations were prepared in emulgel form by mixing the hydro alcoholic extract of four medicinal plants Phyllanthus emblica (Phyllanthaceae), Centella asiatica (Apiaceae), Lagenaria siceraria (Cucurbitaceae), Wedelia calendulacea (Asteraceae) Nardostachys jatamansi (Caprifoliaceae), which are earlier reported to possess acclaimed hair growth promoting action. In this formulation carbopol 934 is used as gelling agent with herbal extracts. Prepared emulgel formulations were evaluated for spreadability, viscosity, pH and Irritancy test. After the this investigation, gather results provide assurance that the hair emulgel formulations having all good characters of an ideal emulgel and was found that non toxic, potent and very economical. [ABSTRACT FROM AUTHOR]

Duodichogamy and multi-cycle dichogamy are rare forms of temporal separation of staminate and pistillate reproductive functions in angiosperms. We studied the floral phenology, breeding system and pollination of Bridelia retusa (L.) A.Juss. and Bridelia moonii Thwaites, with a particular focus on the alternation of sexual phases to determine variation in their dichogamy. Three dichogamy patterns were identified in B. retusa, including one-cycle dichogamy (staminate ? pistillate or pistillate ? staminate), duodichogamy (staminate ? pistillate ? staminate), multi-cycle dichogamy (repeated flowering cycles alternating between staminate and pistillate) and pure staminates. Except for multi-cycle dichogamy, the other dichogamy patterns were prevalent in B. moonii. This study speculated floral mimicry system in Bridelia associated with blowflies. [ABSTRACT FROM AUTHOR]

Phyllanthus tenellus Roxb. (Phyllanthaceae) is a plant used in Brazilian folk medicine for the treatment of intestinal infections and diabetes. Despite its use in traditional medicine, it was reported that P. tenellus extract may cause several effects in the central nervous system (CNS) of animals, such as agitation and signs of depression. The aim of this study was to determine the main constituents of P. tenellus methanol extract and to investigate whether the extract is able to inhibit the enzymes prolyl oligopeptidase (POP), acetylcholinesterase (AChE) and dipeptidyl peptidase-IV (DPP-IV). Corilagin (1) was isolated as the main constituent of the P. tenellus extract, along with rutin (2) and vitexin-2″-O-rhamnoside (3). The extract presented the ability to inhibit mainly POP. Dichloromethane and ethyl acetate fractions showed the highest inhibitory potency against POP (IC50 values of 1.7 ± 0.4 and 11.7 ± 2 µg/mL, respectively). All fractions were inactive against AChE. Corilagin displayed selective POP inhibition in a dose-dependent manner, with IC50= 19.7 ± 2.6 µg/mL. Corilagin exhibited moderate capacity to pass through the phospholipid membrane by passive diffusion, presenting effective permeability (Pe) of 1.26 × 10–7 cm/s. [ABSTRACT FROM AUTHOR]

Five undescribed lignans, cleiseberharnins A–D (1 – 4), cleiseberharside A (5) were isolated from the fruits of Cleistanthus eberhartii (Phyllanthaceae), together with six known aryltetralin lignans, cleistantoxin (6), picroburseranin (7), neocleistantoxin (8), 7-hydroxypicropolygamain (9), cleisindoside D (10), and cleisindoside A (11). Their structures and relative configurations were established by analysis of HRESIMS and NMR data, and quantum chemical calculations of J H,H coupling constants. The absolute configurations of 1 – 5 were determined by analysis of their experimental CD spectra and comparison with calculated electronic circular dichroism (ECD) spectra. All compounds (1 − 11) were evaluated for their cytotoxicity against KB, MCF-7, HepG-2, and Lu-1 human cancer cell lines. Among the tested compounds, compounds 6 and 7 showed strong activity against KB, MCF7, HepG2 and Lu-1 cell lines with IC 50 values in the range of 0.02–0.62 μM. Compound 1 showed activity against three cancer cell lines KB, HepG2, and Lu-1 with IC 50 values of 6.98, 7.61 and 11.75 μM, respectively. Compound 2 exhibited a selective inhibition with moderate cytotoxicity against Lu-1 with IC 50 value of 15.30 μM. Compounds 4 , 5 and 9 showed moderate activity against the three cancer cell lines with IC 50 values in the range of 8.73–19.70 μM. [Display omitted] [ABSTRACT FROM AUTHOR]

In this paper the distribution of a rare taxon, Margaritaria indica f. indica on the islands of south-east Peninsular Malaysia is discussed. The data were obtained from past literatures and combined with those from the ecology plots and surveys conducted throughout those islands, especially Pulau Tioman, Pulau Aur and Pulau Sibu. [ABSTRACT FROM AUTHOR]

Medicinal plants have been used by local communities to treat all sorts of diseases, and this unique indigenous knowledge has been documented in various studies. However, using this vast knowledge to formulate and test hypothesis in ethnobotany is not yet a common practice in the discipline despite recent calls for more hypothesis-driven ethnobotanical researches. Here, we collected ethnobotanical data on 811 woody plant species in the Mpumalanga Province of South Africa to test the non-random hypothesis of medicinal plant selection, which predicts a positive correlation between the size of plant families and the number of medicinal plants in the families. We tested this hypothesis by fitting the commonly used simple linear regression model and the negative binomial model. Our analysis confirmed the hypothesis and revealed that some plant families are over-utilised—i.e. contain more medicinal plants than expected. The identification of over-utilised families is the first step towards the prioritisation of research efforts for drug discovery. The proportion of over-utilised families ranges from 50% (linear regression with untransformed data) and 55% (linear regression after log–log transformation) to 34% (negative binomial model). With the simple linear model and untransformed data, the top over-utilised families are Fabaceae (residual = + 34.44), Apocynaceae (+ 5.82) and Phyllanthaceae (+ 5.53). The log-transformed model confirms these three families as the top over-utilised families but in a slightly different sequence: Fabaceae (+ 1.55), Phyllanthaceae (+ 0.83) and Apocynaceae (+ 0.79). However, using the negative binomial model, Fabaceae is no longer even part of the top 10 over-utilised families, which are now Phyllanthaceae (+ 2.09), Apocynaceae (+ 1.51), Loganiaceae (+ 1.48), Rhamnaceae (+ 1.48), Sapotaceae (+ 1.48), Oleaceae (+ 1.39), Salicaceae (+ 1.39), Clusiaceae (+ 1.30), Boraginaceae (+ 1.28) and Lamiaceae (+ 1.18). This suggests that the relative medicinal value of some families may have been over-estimated in comparison with others. Our study is an illustration of the need to apply appropriate model while testing ethnobotanical hypotheses to inform priority setting for drug discovery. [ABSTRACT FROM AUTHOR]

The genus Phyllanthus is paraphyletic as currently circumscribed, with the genera Breynia, Glochidion and Synostemon nested within it. A phylogeny based on nuclear (ITS, PHYC) and chloroplast (matK, accD‐psaI, trnS‐trnG) markers is presented, including 18/18 subgenera and 53/70 sections. Differences in habit, branching type, floral and fruit characters are discussed, and we find indications for shifts in pollination and dispersal strategies possibly underlying the convergent evolution of these characters in multiple clades. Several taxonomic issues were found in the subgeneric classification of Phyllanthus that will require new transfers and rank changes. Phyllanthus subg. Anesonemoides, subg. Conami, subg. Emblica, subg. Gomphidium, subg. Kirganelia and subg. Phyllanthus are polyphyletic, and several sections appear to be paraphyletic (e.g., P. sect. Anisonema, sect. Emblicastrum, sect. Pseudoactephila, sect. Swartziani, and sect. Xylophylla); P. subg. Phyllanthodendron is furthermore paraphyletic with the genus Glochidion nested within. To create a classification of tribe Phyllantheae that comprises exclusively monophyletic taxa, it is necessary to treat several clades at the same taxonomic rank as the genera Breynia, Glochidion and Synostemon. Since combining all genera would lead to one giant heterogeneous genus that is difficult to define, we recommend dividing Phyllanthus into several monophyletic genera, which have previously been recognized and often possess diagnostic (combinations of) morphological characters. This new classification is forthcoming. [ABSTRACT FROM AUTHOR]

Phyllanthus subcarnosus, which is endemic to Cuba and Hispaniola is the only species in P. sect. Omphacodes. The representatives of Eastern Cuba had been considered a species (P. leonis) independent from those of Western Cuba due to the greater dimensions of their terminal branches, leaves, capsules, seeds and also for their floral characters. However, they are currently considered as a single species. In view of these divergent taxonomic treatments, characterize the morphological diversity of P. subcarnosus is assessed, and its nomenclature, as well as its geographical distribution in Cuba are updated, based on the study of 159 herbarium specimens that represents 59 individual plants, and on the evaluation of 56 vegetative and 63 reproductive characters. The characters that distinguish P. subcarnosus plants in Cuba from its congeners are: hardened cataphylls, elliptical or ovate leaf blade, bisexual cymules, male flowers with three stamens, female flowers with three bifid styles united in a column at the base, and fruits with 6 asymmetrically trigonous seeds. The most important vegetative characters to characterize its variability are the length of the floriferous branches, the number of leaves per floriferous branch and the length of the leaf blade. The nomenclature of the species was updated by clarifying the correct authorship of the name P. subcarnosus is established. The distribution was updated by adding 21 new locations. [ABSTRACT FROM AUTHOR]

Objectives: To determine the phytochemical composition and evaluate the antioxidant activity of the hydroalcoholic extracts of S. haematospermum; P. niruri; P. tenellus; E. serpens. Methodology: The phytochemical composition was analyzed by thin layer chromatography and the antioxidant activity was observed qualitatively by autographic assay. Total phenols were quantified with the Folin-Ciocalteu method and total flavonoids with the aluminum complexation reaction. To determine the antioxidant activity, the discoloration techniques of the free radical DPPH• (2,2-diphenyl-1-picrilhydracil) and of the cation radical ABTS•+ (2,2-Azino-bis-3-ethylbenzothiazolin-6-sulfonic acid) and the reducing power of the iron (III) cation. Results: The phytochemical study showed the presence of bioactive metabolites in all species. The total phenol content ranged from: 627.71 ± 1.45 to 369.8 ± 52.6 mg EAG / g sample and total flavonoids was 12.2 ± 0.1 to 4.5 ± 0.3 mg Q / g sample. The species S. haematospermum and P. tenellus presented higher content of polyphenols. The antioxidant activity tests allowed recognizing that S. haematospermum and P. tenellus have a capacity for greater inhibition of the tested free radicals and the hydroalcoholic extracts S. haematospermum and P. niruri showed greater reducing power. [ABSTRACT FROM AUTHOR]

A new lignan phyllanins A ( 1 ) and a lignan phyllanins B ( 2 ) for which the absolute configuration was determined for the first time, along with four known lignans ( 3 - 6 ) were isolated from the branch and leaf extracts of Phyllanthodendron dunnianum . Their planar structures were mainly determined by a combination of 1D and 2D NMR, HRESIMS spectral analyses, and the absolute configurations of the compounds 1 and 2 were established by DFT GIAO 13 C NMR and electronic circular dichroism (ECD) calculations. In addition, all these six lignans were firstly tested for the antibacterial activities against MRSA, Staphylococcus aureus , Enterococcus faecalis , Pseudomonas aeruginosa and Escherichia coli . Among these compounds, 2 and 5 showed potential antibacterial activities against MRSA and S. aureus with MIC values of 4 and 8 µg/mL, respectively.