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A novel, mustard yellow-pigmented aerobic bacterial strain designated AR01 T was isolated from hypocotyl tissue of a sandalwood seedling from Bangalore, India. The 16S rRNA gene of strain AR01 T had the highest 98.97% sequence similarity with Rothia halotolerans YIM 90716 T (KCTC 19172) followed by Rothia kristinae PM 129 T (NBRC 15354 T ) (97.31%) and Rothia koreensis P31 T (JCM 15915) (97.11%), respectively. The strain AR01 T was coccoid-shaped, non-motile, non-spore forming, oxidase negative and catalase positive. The strain AR01 T has a genome size of 3.31 Mb containing 2993 protein-coding genes including 48 tRNA and 10 rRNAs spread across 84 contigs. The genomic DNA G + C content was 71.77 mol%. The calculated dDDH was 31.10% and the OrthoANI value was 85.27% when compared with its closest related type strain Rothia halotolerans YIM 90716 T . The predominant cellular fatty acids were C 16:0 iso , C 15:0 anteiso and C 17:0 anteiso . The strain AR01 T contains major polar lipids including diphosphatidylglycerol and phosphatidylglycerol. The distinct physiological, biochemical characteristics and genotypic relatedness indicated that AR01 T represents a novel species of the genus Rothia, for which the name Rothia santali sp. nov. (Type strain AR01 T  = MCC 4800 T  = JCM 35593 T ) is proposed., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

Dill seeds (Anethum graveolens L.) is the most valuable medicinal seed spice crop of Apiaceae. It bears small yellow flowers in the form of umbels. Being a cross-pollinated crop, floral visitors play vital role in pollination and seed sets. Hence, the present study was conducted at the ICAR-National Research Centre on Seed Spices, Ajmer (Rajasthan), India to discover the pollinator's community, foraging behaviour and abundance of most frequent pollinators and different modes of pollination on seed yield and quality of this seed spice crop. The insect visitors community of dill seeds was composed of 28 insect species belonging to 14 families of 6 orders. Most of floral visitors started their foraging activity at 8.00 h, reached peak activity between 12.00 and 14.00 h and their activity ceased at 18.00 h. Apis florea, A. dorsata, A. mellifera, solitary bee, Halictus sp. and two unidentified species of Hymenoptera; Episyrphus balteatus (DeGeer), Episyrphus sp., Eristalis sp and two other Musca species of Diptera were identified as potential and regular floral visitors of dill seeds. The highest seed yield of 1505.63 kg/ha was recorded in the treated plots provided with only 10% jaggery solution and was at par with the open pollination. A lower seed yield of 1432.5 kg/ha was recorded in plots pollinated only with A. mellifera inside insect cages. Open pollination with 10% jaggery solution spray increased the seed yield of dill seed crop by 57%, one-thousand seed test weight by 96% and the essential oil content by 27% over control plots. These results show that managed pollination is a much better way to enhance yields and quality of dill seed crop than other treatments including only honeybee-based pollination., (© 2022. The Author(s).)

Introduction: Curcuma caesia (black turmeric), an essential oil-bearing rhizomatous herb has been a part of ethnomedicinal practices in India and southeast Asian countries since ancient time. Oleochemical profile of black turmeric has been investigated previously by gas chromatography coupled to mass spectrometry (GC-MS) technique from different geographical regions showing a large variation in the identity as well as abundance of the constituents., Objectives: To develop an analytical method for the reliable analysis of essential oil from black turmeric rhizome through identified chemical markers and to show the credibility of the developed method on real samples., Methods: The essential oil of black turmeric was analysed through proton nuclear magnetic resonance ( 1 H-NMR) based method using an internal standard., Results: Four thermolabile sesquiterpene markers were unambiguously identified from the essential oil of black turmeric rhizome. GC-MS based analysis produced an erroneous identification of the constituents. A standardised 1 H-NMR spectroscopy based method was developed for the qualitative and quantitative analysis of the identified chemical markers. The developed method was further utilised for analysing the variation in oleochemical profile across multiple batches of harvest and the rhizomes subjected to different post-harvest storage or drying conditions., Conclusion: The identified marker molecules and developed 1 H -NMR spectroscopic method might prove to be a useful tool for the analysis of essential oil and quality control of this endangered crop material. Also, the present study provided information on the preferred drying and storage condition of black turmeric rhizome prior to the extraction of essential oil., (© 2019 John Wiley & Sons, Ltd.)

Rhipicephalus (Boophilus) microplus (Acari: Ixodidae), is one of the most important ectoparasite of cattle, responsible for causing severe economic losses in the tropical and subtropical regions of the world. The development of resistance to most of the commonly used chemical acaricides has stimulated the search for new herbal products as an eco-friendly tick control alternative. The aim of the present study was to evaluate the in vitro acaricidal activity of essential oils (EOs) of cloves (Syzygium aromaticum), bark of cinnamon (Cinnamomum zeylanicum) and leaves of lemon grass (Cymbopogon citratus) against unfed larvae of R. (B.)microplus by larval packet test. Also, various combinations were prepared by mixing of equal concentrations of any two and all three EOs and used to study the effects of interactions of mixtures against larvae of R. (B.) microplus. The lethal concentrations at 50% (LC 50 ), 90% (LC 90 ) and 99% (LC 99 ) with 95% confidence limits (CL) were estimated by Probit analysis using PoloPlus. The computer software, CompuSyn, was used for determining the effects of interactions (synergistic, additive or antagonistic) of EO mixtures by calculation of Combination index (CI) and Dose-reduction index (DRI). Among the individual and mixture of two EOs, cinnamon EO and cinnamon EO + lemon grass EO combination showed highest acaricidal activity against R. (B.) microplus larvae. Further, the combination of cinnamon EO + lemon grass EO showed high synergism with CI value of 0.381, followed by cinnamon EO + clove EO showing moderate synergism whereas, clove EO + lemon grass EO showed only additive effect, with favorable dose reduction for each constituent drug in all three combinations. The combination of all three EOs (1:1:1) showed high synergism (CI value of 0.376) and favorable dose reduction (DRI index of 8.19, 25.64 and 4.64 for clove, cinnamon and lemon grass EOs, respectively) against R. (B.) microplus larvae., (Copyright © 2019 Elsevier Inc. All rights reserved.)

Essential oil isolated from the inflorescences of Capillipedium parviflorum (R. Br.) Stapf., collected from Kumaon region of Western Himalaya, India, was investigated by GC and GC-MS. A total of 45 constituents representing 99.0% of the essential oil were identified. The major components of this oil were 4-undecanone (33.2%), 4-undecanol (29.7%), 4-nonanol (13.9%), α-muurolol (5.3%), 4-tridecanone (3.6%), methyl-2-oxo-nonanoate (3.1%), trans-2-hexenyl butanoate (1.1%) and 1-tetradecanol (1.0%). The antimicrobial activity of the essential oil was determined against eight Gram-positive and Gram-negative bacterial strains, as well as two fungal strains. The bioassay showed that the essential oil possessed good antibacterial activity.

This retrospective study, conducted at the Indian Oil Corporation Ltd. (Assam Oil Division) Hospital, Digboi, in a period of 5 yr amongst workers of IOC Ltd. (AOD) describes work-associated injuries. Out of 2320 cases of different types of injuries involving workers over this period, 820 (35.3%) occurred at the workplace. 1430 (61.6%) at home or other places and 70 (3.1%) occurred on way to the workplace. Burn injuries were found in 132 cases (5.8% of the total injuries), but constituted 12.6% of the accidents at the workplace. The majority of the other injuries were soft tissue injuries, including sprains 1288 (55.5%) and hand injuries 688 (29.5%). Major burns (above 20% BSB) were found only in 5 cases. The most common sites of involvement in minor burns were the hands (45 cases), the legs (35 cases) and face (20 cases) with the remaining involving the chest and abdomen. Scald injury was observed in 66/132 (50%) cases, contact burns in 13/132 (10%) cases, flame burns in 33/132 (25%) cases, chemical burns in 11/132 (8.3%), and electrical burns in 9/132 (7%) cases. Mortality was 1.5%. Working days lost (man-days loss) in burn injuries was found to be higher in comparison to other injuries of similar severity. Causation of industrial burns is discussed and importance of prevention of burns in industries has been emphasised.