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Chlorogenic acid is an important polyphenolic compound in plants, which plays an important physiological role in plant growth and development, disease and pest resistance, cold resistance and other stresses. It has a variety of pharmacological functions, including anti-inflammatory, antibacterial, antiviral, anticancer, anti-ultraviolet light and radiation, immunoregulation, hypolipidemic, hypoglycemic, etc. Chlorogenic acid has great potential especially in functional foods, nutritional supplements, raw food materials, chemical industry and drug development. Tomato, eggplant, pepper, potato and tobacco are important cash crops in the world. They are all important types of Solanaceae plants, and also important sources of chlorogenic acid. The content of chlorogenic acid in fruits or vegetative organs of Solanaceae crops varies greatly, and their chlorogenic acid anabolism is a complex biological process determined by genetic and environmental factors. Therefore, the research on biosynthesis and molecular mechanisms of regulation of chlorogenic acid in Solanaceae crops has important theoretical significance and application value for crop genetic improvement. The article outlines the content of chlorogenic acid in the above five Solanaceae crops, the biosynthetic pathways and transcriptional regulation molecular mechanisms of chlorogenic acid, and the effects of genotype differences, environmental factors, cultivation measures on chlorogenic acid content in Solanaceae crops, which is expected to provide theoretical bases for the development and utilization of chlorogenic acid in Solanaceae crops, the creation of germplasm resources with high chlorogenic acid and the breeding of new varieties of Solanaceae crops. [ABSTRACT FROM AUTHOR]

Joe et al. published Lysionotus gamesepalus W. T. Wang var. biflorus A. Joe, Hareesh & M. Sabu in 2017 based on the specimens collected from South Tibet, China, and thought the new variety differed from L. gamosepalus in having leaves with sub-serrate margin, only two flowers from per axil inflorescence, a hairy corolla and two coiled staminodes. However, based on the examination of herbarium specimens and field investigations, we believe that the morphological characteristics of this variety are within the variation range of L gamosepalus W. T. Wang, the distributions are sympatric, the habitat and phenology are also same. In conclusion, morphological comparisons indicate that the variety is conspecific with L. gamosepalus, we therefore reduce L gamosepalus var. biflorus as the synonym of L. gamosepalus here. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Taiwan Agricultural Research is the property of Taiwan Agricultural Research Institute, Council of Agriculture, Executive Yuan 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.)

Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan Agricultural Sciences 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.)

Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan Agricultural Sciences 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.)

Two newly naturalized plants, namely llypochaeris albijlora (Kuntze) Azevedo-Conc. & Matzenb. (Asteraee-ae) and Solatium diphyllum Linn. (Solanaceae), were first recorded in mainland China, llypochaeris albijlora is native to South America, and has become locally naturalized in Panlong District, Yunnan Province, Southwest China. In genus Hypochaeris, II. albijlora is characterized by its basal leaves entire or dentate, sometimes pinnately lobed to deeply lobed, cauline leaves linear, eapilula cylindrical or narrowly campanulate, florets white and aehene with four ribs. Solarium diphyll tint is native to ihe Mexico and Central America, it is now found naturalized in Mengla County, Yunnan Province, Southwest China.S. diphyllum is a perennial evergreen shrub and characterized by its upper leaves usually arranged in pairs on each node and unequal in size, mature fruits yellow. In additon, the potential harm and invasive risks of these two naturalized plants are briefly assessed as well. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture 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.)

Wolfberry belongs to Solanaceae, Lycium. Studies have shown that the LBP has many effects, such as delaying aging, anti-tumor, anti-fatigue, controlling blood sugar, preventing glaucoma and so on. The main producing areas of wolfberry are Ningxia, Inner Mongolia, Xinjiang, Hebei, Qinghai, Hubei and Tibet. In recent years, wolfberry acreage increased by 11% annually. Wolfberry is infinite inflorescence, and the end of June to early October is the picking period of wolfberry. Wolfberry is in continuous flowering during the picking period, and the average picking cycle is 7 days. Wolfberry picking is still dependent on artificial, so low efficiency and high labor cost are the most prominent issues. The efficiency of artificial picking wolfberry is only 3 ~ 5 kg/h, while the cost is up to 34 500 yuan / hm2, accounting for more than 50% of production costs. With the growing area of wolfberry, the labor force will be in short supply, so the picking problem has become the bottleneck restricting the sustainable development of wolfberry industry. Wolfberry is less cultivated abroad, so there are few researches on large-scale cultivation and mechanized picking of wolfberry in foreign countries. The domestic research on wolfberry picking machinery began in the early 21st century and was carried out mainly in several major producing areas. At present, according to the different principles of picking, wolfberry picking machinery can be divided into 4 main types: shear, brush comb, vibration and air flow. However, the current various picking machinery has obvious defects. This study designs a vibrating wolfberry harvesting device with comb brush bases on combing vibration method and tests it. The device consists of harvesting unit and lifting mobile unit. Harvesting unit includes: comb brush vibration mechanism, DC motor, timing pulley, support frame, baffle. Among them, the comb brush vibration mechanism is the key component, which including left input shaft, right input shaft, harvesting rob, T reducer, disc, connecting rob, coupling, slider and sliding shell. The 4 rows of harvesting poles and the shell are fixed by bolts. The shell and the slide are also fixed by bolts. The slide block and the slider are matched with each other so as to make linear motion along the slider. The 2 ends of the connecting rod are respectively hinged with the shell and the disc. Harvesting unit is used to achieve the recovery of wolfberry fruit. Lifting mobile unit is a hydraulic lift trolley. The harvesting unit is fixed on the lifting mobile unit, and the whole harvesting device can move horizontally and vertically. Based on ADAMS software, the model of Lycium barbarum fruit and branch, the model of comb vibration are established by parameterized modeling. The connecting force between fruit and fruit stem is connected by generalized force. The sensor is used to monitor the fruit stem breakage condition, which realizes the process control of separation of fruit and stem of wolfberry. Through the simulation analysis, it is determined that the brushing speed, the disc speed (vibration frequency) and the vibration amplitude of the harvesting device have a significant effect on shedding of wolfberry fruit. The field experiment is carried out to evaluate the harvest efficiency, the harvest rate of mature wolfberry, the shedding rate of immature and the damage rate of mature wolfberry. Test results showed that the best combination was that the comb brush speed is 80 r/min, disc rotation speed is 100 r/min, vibration amplitude is 80 mm. Based on the combination of the factor level, the harvest efficiency is 13.12 kg/h, the harvest rate of mature wolfberry is 87.46%, the shedding rate of immature is 13.81%, the damage rate of mature wolfberry is 2.82%. Compared with other single-principle harvest mechanisms, the device not only achieves harvest efficiency and higher mature harvest rate, but also guarantees relatively low shedding rate of immature and damage rate of mature wolfberry. This studdy can provide theoretical basis and data support for the design of the mechanized harvesting machinery of wolfberry. [ABSTRACT FROM AUTHOR]

At present, both domestic and foreign grafting robots have the problem of low cost performance ratio. In order to increase in per capita productivity to improve cost performance ratio, this paper selected 2JT-1600 assembly line solanaceous fruit grafting robot(2Jt-1600B) researched and developed by South China Agricultural University, and split a working position that completed both seedling feeding and seedling cutting into 2 working positions that separately completed seedling feeding and seedling cutting based on the improved feeding seedling device by adding seedling seat and transmitting manipulator. The process that feeding device feeds stock to grafting robot can be divided into 2 phases: transportation phase and transmitting phase. In transportation phase, one operator places stock on seedling seat repeatedly, and seedling seat is circulated step by step together with conveying chain to transport stock to the position; slot is designed on seedling seat to provide convenience for positioning and placement of stock. As nursery substrate is attached on stock, the center of stock is deviated to the side of nursery substrate, thus leading to the trend of overturning from seedling seat. In order to prevent stock falling out from seedling seat when transporting, highly elastic rubber is selected to be fixed on slot to give friction force for stock to overcome falling by squeeze of rubber with stem of stock. In transmitting phase, transmitting manipulator picks up stock, and transfers it into holding device of grafting robot after rotating by 90°. In order to prevent transmitting manipulator harming the stock, by analyzing the stress of stock in the rotation of transmitting manipulator, the structural sizes of transmitting manipulator were affirmed. The seedling holder was also developed to pick seedlings up in crossed closing form. After the test, seedling holder was found to have a tolerance of 5 mm. In order to dock transmit manipulator with seedling seat and holding device, two-piece design was adopted for seedling holder and seedling seat. In this paper, the design and experiments are both mainly focused on the structure parameter of seedling seat. In transportation phase, when stock is excessively bending to place inside the slot, it is easy to cause alignment difficulty or crush stock owing to two-piece structure of slot. So, it is required to straighten seedling. The operation will influence feeding efficiency. When the depth of slot is bigger to hold stock, and the suspension rubber above seedling seat is longer, thus the ability of rubber deformation is favorable, it is easy to place stock into the slot, but the stroke of stock at the slot bottom is increased. When the depth of slot is shallow and the rigidness of slot is bigger, it is easy to crush seedling. When the thickness of rubber used for slot is changed, it will influence the deformation ability of slot and lead to the changes of friction between stock and slot wall, which will cause the changes of holding performance. The test of holding parameters of seedling seat, which were the curvature of stock, depth of slot and thickness of rubber, was conducted under grafting productivity of 2000 seedlings per hour. When stock is not damaged or falling out while being placed into the slot of seedling seat and transferred to picking position of transmitting manipulator via seedling seat, the position is considered to be suitable to pick by transmitting manipulator and the experiment is regarded to be successful. Test results showed that when the stock bending was chosen within the 95% percentile(6.55 mm), the depth of upper slot of seedling seat reaches 8 mm and its rubber was 3 mm thick, the holding function of seedling seat could achieve 100%, and the feeding success rate of transmitting manipulator could reach 92%. Due to the working position station split, the operation cycle is shortened, the grafting productivity reaches 2000 seedlings per hour, the feeding device implements feeding stock and scion on single, and per capita productivity increases to 1000 seedlings per hour. [ABSTRACT FROM AUTHOR]

The Solanaceae plants distributed in China belong to 105 species and 35 varietas of 24 genera. Some medicinal plants of Solanaceae are rich in tropane alkaloids(TAs), which have significant pharmacological activities. In this paper, the geographical distribution, chemical components, traditional therapeutic effect, pharmacological activities, and biosynthetic pathways of TAs in Solanaceous plants were summarized. Besides, the phylogeny of medicinal plants belonging to Solanaceae was visualized by network diagram. Fourteen genera of Solanaceae plants in China contain TAs and have medical records. TAs mainly exist in Datura, Anisodus, Atropa, Physochlaina, and Hyoscyamus. The TAs-containing species were mainly concentrated in Southwest China, and the content of TAs was closely related to plant distribution area and altitude. The Solanaceae plants containing TAs mainly have antispasmodic, analgesic, antiasthmatic, and antitussive effects. Modern pharmacological studies have proved the central sedative, pupil dilating, glandular secretion-inhibiting, and anti-asthma activities of TAs. These pharmacological activities provide a reasonable explanation for the traditional therapeutic efficacy of tropane drugs. In this paper, the geographical distribution, chemical components, traditional therapeutic effect, and modern pharmacological activities of TAs-containing species in Solanaceae were analyzed for the first time. Based on these data, the genetic relationship of TAs-containing Solanaceae species was preliminarily discussed, which provided a scientific basis for the basic research on TAs-containing solanaceous species and was of great significance for the development of natural medicinal plant resources containing TAs.

The chemical constituents from the n-butanol fraction of the 70% ethanol extract of Datura metel roots were separated by silica gel and ODS chromatogram columns as well as preparative HPLC. On the basis of spectral data analysis, their structures were elucidated. Twenty-one compounds were obtained and their structures were identified as citroside A (1), coniferin (2), paeoniflorin (3), (6R,7E,9R)-9-hydroxy-4,7-megastigmadien-3-one 9-O-[α-L-arabin-opyranosyl-(l→6)-β-D-glucopyranoside] (4), (1R,7R,10R,11R)-12-hydroxyl anhuienosol (5), kaurane acid glycoside A (6), ent-2-oxo-15,16-dihydroxypimar-8(14)-en-16-O-β-glucopyranoside (7), ginsenoside Rg₁(8), ginsenoside Re (9), notoginsenosides R₁(10), N-butyl-O-β-D-fructofuranoside (11), salidroside (12), hexyl β-sophoroside (13), 2,6-dimethoxy-4-hydroxyphenol 1-glucoside (14), benzyl-O-β-D-xylopyranoxyl(1→6)-β-D-glucopyranoside (15), (Z)-3-hexenyl-O-α-L-arabinopyranosyl-(1→6)-β-D-glucopyranoside (16), N-[2-(3,4-dihydro-xyphenyl)-2-hydroxyethyl]-3-(4-methoxyphenyl) prop-2-enamide (17), cannabisin D (18), cannabisin E (19), melongenamide B (20), paprazine (21). Compounds 2-17 and 20-21 were isolated from the Solanaceae family for the first time., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Chinese Pharmaceutical Association.)