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Changyan Tian - One of the best experts on this subject based on the ideXlab platform.
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lithium biofortification of medicinal tea Apocynum venetum
Scientific Reports, 2019Co-Authors: Li Jiang, Mohsin Tanveer, Lei Wang, Changyan TianAbstract:: Lithium (Li) could be much safer and successful approach to supply Li via Li-fortified food products. This study is highlighting the potential scope of Li supply via Li-biofortification of Luobuma tea (made from Apocynum venetum leaves), which is a very popular beverage in Asia with several medical properties. We explored the possibility of A. venetum as Li-enriched tea and investigated plant growth, Li accumulation, total flavonoids (TFs), rutin and hyperoside concentrations, and the antioxidant capacity of A. venetum. With the increase of additional Li, Li concentration in roots, stems and leaves increased gradually. Compared with the control treatment, 10-15 mg kg-1 Li addition stimulated the growth of A. venetum and 25 mg kg-1 Li addition significantly increased the Li concentration in leaves by 80 mg kg-1. Li application did not decrease TFs, rutin, hyperoside and antioxidant capacity of this medicinal herb. A daily consumption of 10 g Li-biofortified A. venetum leaves (cultivated with 25 mg kg-1 LiCl) can give 592 μg Li intake and would constitute 59% of the provisional recommended dietary daily intake of Li. Our results showed that Li-biofortified A. venetum leaves can be used as Li-fortified tea to enhance Li supply and to improve human health when it was used as daily drink.
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subcellular distribution and chemical forms of lithium in li accumulator Apocynum venetum
Plant Physiology and Biochemistry, 2018Co-Authors: Litao Qiao, Mohsin Tanveer, Lei Wang, Changyan TianAbstract:Abstract Apocynum venetum is a promising species to remediate an emerging environmental contaminant lithium (Li). However, no research has been conducted so far relating Li tolerance mechanism. In order to improve the understanding of Li transportation and detoxification, subcellular accumulation and distribution of different chemical forms of Li was studied in Apocynum venetum. Subcellular Li compartmentalization analysis showed that majority of Li was located in vacuole (45.52–72.65%) and cell wall (14.84–29.02%) under Li treatment. Furthermore, water soluble and ethonal extracted Li (inorganic Li) are the main chemical forms of Li taken up by A. venetum. With the increase of Li concentration in the medium, Li content in all subcellular fractions and proportion of F-ethanol form with high mobility increased. The greatest amount of Li was found in soluble fraction in leaves at 25 mg L−1 Li treatment, followed by soluble fraction in leaves at 2.5 mg L−1. These results suggest that Li compartmentation in leaf vacuoles is important in Li detoxification and Li accumulation of A. venetum.
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tolerance and accumulation of lithium in Apocynum pictum schrenk
PeerJ, 2018Co-Authors: Li Jiang, Lei Wang, Lei Zhang, Changyan TianAbstract:: Primarily, lithium (Li) resource development and wider application of Li-ion batteries result in Li pollution and concomitantly poses increasing and inevitable problems to environmental health and safety. However, information is rare about the scope of the remediation of Li contaminated soil. Apocynum venetum is already proved to be a Li-accumulator with high Li tolerance and accumulation (Jiang et al., 2014). However, it is not clear whether Apocynum pictum, another species of the same genus with the same uses as A. venetum, is also a Li-accumulator. We investigated germination, growth and physiological responses of A. pictum to different levels of LiCl. Germination was not significantly affected by low Li concentration (0-100 mmol L-1). As LiCl increased from 100 to 400 mmol L-1, both germination percentage and index decreased gradually. For germination of A. pictum seeds, the critical value (when germination percentage is 50%) in LiCl solution was 235 mmol L-1, and the limit value (when germination percentage is 0%) was 406 mmol L-1. A. pictum could accumulate >1,800 mg kg-1 Li in leaves, and still survived under 400 mg kg-1 Li supply. The high Li tolerance of A. pictum during germination and growth stage was also reflected by activity of α-amylase and contents of soluble sugar, proline and photosynthetic pigments under different Li treatments. The bioconcentration factors (BCF) (except control) and translocation factors (TF) were higher than 1.0. High tolerance and accumulation of Li indicated that A. pictum is Li-accumulator. Therefore, this species could be useful for revegetation and phytoremediation of Li contaminated soil.
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Apocynum venetum a newly found lithium accumulator
Flora, 2014Co-Authors: Li Jiang, Lei Wang, Shuyong Mu, Changyan TianAbstract:Abstract Apocynum venetum has antidepressant and anxiolytic effects according to the traditional Chinese medicine. Lithium (Li) is a proven mood stabilizer. According to the similar drug efficacy, we hypothesized that A. venetum may contain high levels of Li. Here, we investigated Li tolerance and accumulation potential of A. venetum in the field and in greenhouse cultivation. Li concentration in leaves of A. venetum was substantially higher than that of its main accompanying plants. Under a soil Li supply of 50 mg kg−1 the plant did not show obvious symptom of phytotoxicity. Rather, A. venetum could accumulate >1800 mg kg−1 Li in leaf tissues, and survived still under 400 mg kg−1 Li supply. The bioconcentration factor (except control) and translocation factor values were greater than 1.0. Thus, A. venetum has the characteristics of, at least, a Li-accumulator, if not a Li-hyperaccumulator. A. venetum may serve as an interesting model species to study the influence of Li on plants.
Jianjun Hu - One of the best experts on this subject based on the ideXlab platform.
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botany traditional uses phytochemistry and pharmacology of Apocynum venetum l luobuma a review
Journal of Ethnopharmacology, 2012Co-Authors: Xiaoying Zhang, Tian Wang, Jianjun HuAbstract:Abstract Ethnopharmacological relevance Apocynum venetum L. (Apocynaceae, Luobuma ) has a long history as a Chinese traditional medicine with uses to calm the liver, soothe the nerves, dissipate heat, and promote diuresis. Recently, Luobuma tea has been commercialized as a sedative and anti-aging supplement that has become increasingly popular in North American and East Asian health food markets. Aims of the review The aim of this review is to provide an up-to-date and comprehensive overview of the botany, chemical constituents, traditional uses, pharmacological activities and safety aspects of Apocynum venetum in order to assess its ethnopharmacological use and to explore its therapeutic potentials and future opportunities for research. Background and methods The accessible literature on Apocynum venetum written in English, Chinese and Japanese were collected and analyzed. The literatures included ancient Chinese herbal classics, pharmacopoeias and articles that included in Pubmed, Web of Science, Google Scholar and Wanfang. Key findings Modern pharmacological studies demonstrated that Apocynum venetum possess wide pharmacological activities that include antihypertensive, cardiotonic, hepatoprotective, antioxidant, lipid-lowering, antidepressant and anxiolytic effects, which can be explained by the presence of various flavonoid compounds in this plant. The traditional (Lop Nor region) use of Apocynum venetum with tobacco as an agent to detoxify nicotine may receive interest as a possible therapeutic option to detoxify the body from smoking. Based on animal studies and clinical trials, Apocynum venetum causes no severe side effects, even in a stable daily dosage (50 mg/person/day) for more than three years. Conclusions Apocynum venetum potentially has therapeutic potential in the prevention and treatment for the cardiovascular and neurological diseases, especially for high blood pressure, high cholesterol, neurasthenia, depression and anxiety. Further investigations are needed to explore individual bioactive compounds responsible for these in vitro and in vivo pharmacological effects and the mode of actions. Further safety assessments and clinical trials should be performed before it can be integrated into medicinal practices.
Yuanming Zhang - One of the best experts on this subject based on the ideXlab platform.
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comparative study of composition structure and properties of Apocynum venetum fibers under different pretreatments
Carbohydrate Polymers, 2007Co-Authors: Leilei Wang, Yuanming ZhangAbstract:In this paper, the chemical degumming methods, briefly, peeled bast by hand (Fiber-H) and by machine (Fiber-M), as well as the bacterial degumming method (Fiber-B), were used to obtain the Apocynum venetumfibers and the fibers separately obtained by above-mentioned methods as well as the Bast of the Apocynum venetum had been characterized by the Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM) and mechanical property measurement. It was found that the Bast showed the structure of cellulose I and the cellulose I structure was well preserved in all treated A. venetum fibers according to the FTIR and XRD results. Meanwhile, as seen from the SEM images, the treated fibers can be directly suitable for textile industry, which was further confirmed by the mechanical property measurements. It is interesting to note that the crystallinity, the degree of orientation and the mechanical properties of Fiber-B only have slight differences with those of Fiber-H and Fiber-M. These results suggested that the bacterial degumming method had more industrial applications due to its high efficiency, low cost and especially environmentally-benign nature than the chemical degumming methods.
Li Jiang - One of the best experts on this subject based on the ideXlab platform.
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lithium biofortification of medicinal tea Apocynum venetum
Scientific Reports, 2019Co-Authors: Li Jiang, Mohsin Tanveer, Lei Wang, Changyan TianAbstract:: Lithium (Li) could be much safer and successful approach to supply Li via Li-fortified food products. This study is highlighting the potential scope of Li supply via Li-biofortification of Luobuma tea (made from Apocynum venetum leaves), which is a very popular beverage in Asia with several medical properties. We explored the possibility of A. venetum as Li-enriched tea and investigated plant growth, Li accumulation, total flavonoids (TFs), rutin and hyperoside concentrations, and the antioxidant capacity of A. venetum. With the increase of additional Li, Li concentration in roots, stems and leaves increased gradually. Compared with the control treatment, 10-15 mg kg-1 Li addition stimulated the growth of A. venetum and 25 mg kg-1 Li addition significantly increased the Li concentration in leaves by 80 mg kg-1. Li application did not decrease TFs, rutin, hyperoside and antioxidant capacity of this medicinal herb. A daily consumption of 10 g Li-biofortified A. venetum leaves (cultivated with 25 mg kg-1 LiCl) can give 592 μg Li intake and would constitute 59% of the provisional recommended dietary daily intake of Li. Our results showed that Li-biofortified A. venetum leaves can be used as Li-fortified tea to enhance Li supply and to improve human health when it was used as daily drink.
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tolerance and accumulation of lithium in Apocynum pictum schrenk
PeerJ, 2018Co-Authors: Li Jiang, Lei Wang, Lei Zhang, Changyan TianAbstract:: Primarily, lithium (Li) resource development and wider application of Li-ion batteries result in Li pollution and concomitantly poses increasing and inevitable problems to environmental health and safety. However, information is rare about the scope of the remediation of Li contaminated soil. Apocynum venetum is already proved to be a Li-accumulator with high Li tolerance and accumulation (Jiang et al., 2014). However, it is not clear whether Apocynum pictum, another species of the same genus with the same uses as A. venetum, is also a Li-accumulator. We investigated germination, growth and physiological responses of A. pictum to different levels of LiCl. Germination was not significantly affected by low Li concentration (0-100 mmol L-1). As LiCl increased from 100 to 400 mmol L-1, both germination percentage and index decreased gradually. For germination of A. pictum seeds, the critical value (when germination percentage is 50%) in LiCl solution was 235 mmol L-1, and the limit value (when germination percentage is 0%) was 406 mmol L-1. A. pictum could accumulate >1,800 mg kg-1 Li in leaves, and still survived under 400 mg kg-1 Li supply. The high Li tolerance of A. pictum during germination and growth stage was also reflected by activity of α-amylase and contents of soluble sugar, proline and photosynthetic pigments under different Li treatments. The bioconcentration factors (BCF) (except control) and translocation factors (TF) were higher than 1.0. High tolerance and accumulation of Li indicated that A. pictum is Li-accumulator. Therefore, this species could be useful for revegetation and phytoremediation of Li contaminated soil.
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Apocynum venetum a newly found lithium accumulator
Flora, 2014Co-Authors: Li Jiang, Lei Wang, Shuyong Mu, Changyan TianAbstract:Abstract Apocynum venetum has antidepressant and anxiolytic effects according to the traditional Chinese medicine. Lithium (Li) is a proven mood stabilizer. According to the similar drug efficacy, we hypothesized that A. venetum may contain high levels of Li. Here, we investigated Li tolerance and accumulation potential of A. venetum in the field and in greenhouse cultivation. Li concentration in leaves of A. venetum was substantially higher than that of its main accompanying plants. Under a soil Li supply of 50 mg kg−1 the plant did not show obvious symptom of phytotoxicity. Rather, A. venetum could accumulate >1800 mg kg−1 Li in leaf tissues, and survived still under 400 mg kg−1 Li supply. The bioconcentration factor (except control) and translocation factor values were greater than 1.0. Thus, A. venetum has the characteristics of, at least, a Li-accumulator, if not a Li-hyperaccumulator. A. venetum may serve as an interesting model species to study the influence of Li on plants.
Niels Thevs - One of the best experts on this subject based on the ideXlab platform.
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Apocynum venetum L. and Apocynum pictum Schrenk (Apocynaceae) as multi-functional and multi-service plant species in Central Asia: a review on biology, ecology, and utilization
Journal of applied botany and food quality, 2020Co-Authors: Niels Thevs, A. Rozi, Nurbay Abdusalih, Stefan Zerbe, B. Tang, Yordan Kyosev, Z. NovitskiyAbstract:During the second half of the 20th century cotton was strongly promoted along the rivers of Central Asia. The irrigation agriculture resulted in wide spread soil salinization and severe water shortages within the river systems. Most prominent example is the desiccation of the Aral Sea. The natural vegetation along the rivers of Central Asia is adapted to periods of water shortage, is very productive, and contains plant species with valuable utilization opportunities. We reviewed the literature about Apocynum venetum L. and A. pictum Schrenk, two plant species of those riparian ecosystems, which are used as fibre and medicinal plants. A. venetum and A. pictum yield fibres, which can be used as textiles, though the fibres best are blended with cotton and/or chemical fibres. Though, the fibre extraction process needs more research attention. Furthermore, the literature shows that Apocynum leafs are used to produce antihypertonic tea and medicine. Both species grow under the arid climate of Central Asia without irrigation, because they exploit groundwater. Furthermore, both species can withstand higher soil salinization levels than cotton. Both species can be used and provide an income to local people under conditions, which are unfavourable to grow crops under irrigation. Such conditions are unreliable water supply for irrigation systems and/or saline soils.
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Carbon and phosphorus footprint of the cotton production in Xinjiang, China, in comparison to an alternative fibre (Apocynum) from Central Asia
Journal of Cleaner Production, 2017Co-Authors: Jasmin Günther, Hans Jörg Gusovius, Ina Sigmund, Torsten Brückner, Volker Beckmann, Niels Thevs, Nurbay AbdusalikAbstract:Agriculture significantly contributes to greenhouse gas emissions and thus to climate change, directly through farm operations and indirectly through the energy needed to produce input materials, most prominently fertiliser, as well as through nitrous oxide (N2O) emissions from soils. Agriculture is the largest consumer of phosphorus, which is a non-renewable resource. Cotton accounts for one third of all natural and synthetic fibres of the total textile production. Today, Xinjiang, China, has become one of the most important cotton producers with highest yields worldwide. The aim of this study was to calculate the carbon (climate footprint and energy footprint) and phosphorus footprint of this high yielding cotton production and compare it to a theoretical production of an alternative fibre from Apocynum (local name: Kendyr or Kutra), which is a bast fibre plant native in Xinjiang and Central Asia. The data of the cotton production was collected through farm interviews during six years in Xinjiang. The data for Apocynum was compiled by literature from field experiments in the former Soviet Union. Cotton fibres, mainly due to high fertiliser inputs, caused a climate footprint of 4.43 kg CO2e/kg fibre, an energy footprint of 30.90 MJ/kg fibre, and a phosphorus footprint of 101 g P/kg fibre. The footprints of Apocynum are significantly lower with a climate footprint of 1.93 kg CO2e/kg fibre, an energy footprint of 21.85 MJ/kg fibre, and a phosphorus footprint of 1.6 g P/kg fibre. In cotton production, 63.9% of the climate footprint and 68.4% of the energy footprint are attributed to fertiliser production. Soil emissions of N2O account for another 22.2% of the climate footprint of cotton. The biggest potential to reduce carbon and phosphorus footprints of cotton production lie in reduced fertiliser application and re-use of plant residues. In the case of Apocynum, 65.1% of the climate footprint and 64.1% of the energy footprint are attributed to chemical treatment of the fibres in the extraction process.
