High-light stress strongly limits agricultural production in subtropical and tropical regions owing to photo-oxidative damage,decreased growth,and decreased yield.Here,we investigated whether beneficial mi-crobes can p...High-light stress strongly limits agricultural production in subtropical and tropical regions owing to photo-oxidative damage,decreased growth,and decreased yield.Here,we investigated whether beneficial mi-crobes can protect plants under high-light stress.We found that Enterobacter sp.SA187(SA187)supports the growth of Arabidopsis thaliana under high-light stress by reducing the accumulation of reactive oxygen species and maintaining photosynthesis.Under high-light stress,SA187 triggers dynamic changes in the expression of Arabidopsis genes related to fortified iron metabolism and redox regulation,thereby enhancing the antioxidative glutathione/glutaredoxin redox system of the plant.Genetic analysis showed that the enhancement of iron and sulfur metabolism by SA187 is coordinated by ethylene signaling.In sum-mary,beneficial microbes could be an effective and inexpensive means of enhancing high-light-stress tolerance in plants.展开更多
In the 21st century, the public are more informed, mainly via the Internet, about health and medical products and have become more knowledgeable about matters relating to their health conditions and well-being in curi...In the 21st century, the public are more informed, mainly via the Internet, about health and medical products and have become more knowledgeable about matters relating to their health conditions and well-being in curing and preventing illnesses. They often self-medicate themselves with various health products and over-the-counter （OTC） medicines apart from prescribed pharmaceutical drugs （PD）. Some of those non-prescribed products may have doubtful quality control and contain harmful additives or unchecked ingredients; thus their usefulness is in doubt. The increasing popularity world-wide of using Chinese medicines （CM） and related OTC functional products has raised concerns over their concomitant use with PD and the consequential adverse effects. In most cases the alleged causes of adverse effects are linked with herbal sources, although the authorised information on the interactions between CM-PD is not plentiful in the literature. There is an urgent need for such a data base. The future professionals in health and medical care should be knowledgeable or aware of what their patients have been taking or given. In actual practice the patients may receive both treatments intentionally or unintentionally, with or without the awareness of the practitioner. In these situations a reliable database for interactions between CM-PD will be extremely useful for consultation when treatment problems appear or during emergency situations. Their combining of medications may be involved with possible outcomes of adverse reactions or beneficial effects. Such a database will be welcomed by both practitioners of herbal medicines and orthodox medicine practitioners in the emerging trend of integrative medicine. The author has been involved in various research projects of basic and clinical aspects in mainly CM among other herbal and PD. Examples will be given largely on those related to these disciplines as illustrations in this overview.展开更多
基金King Abdullah University of Science and Technology(KAUST)base fund for H.H.no.BAS/1/1062-01-01.J.-P.R.was supported by the Agropolis Fondation(Flagship Project CalClim grant no.1802-002).
文摘High-light stress strongly limits agricultural production in subtropical and tropical regions owing to photo-oxidative damage,decreased growth,and decreased yield.Here,we investigated whether beneficial mi-crobes can protect plants under high-light stress.We found that Enterobacter sp.SA187(SA187)supports the growth of Arabidopsis thaliana under high-light stress by reducing the accumulation of reactive oxygen species and maintaining photosynthesis.Under high-light stress,SA187 triggers dynamic changes in the expression of Arabidopsis genes related to fortified iron metabolism and redox regulation,thereby enhancing the antioxidative glutathione/glutaredoxin redox system of the plant.Genetic analysis showed that the enhancement of iron and sulfur metabolism by SA187 is coordinated by ethylene signaling.In sum-mary,beneficial microbes could be an effective and inexpensive means of enhancing high-light-stress tolerance in plants.
基金the support from the Joint Chair in Traditional Chinese Medicine Program(New South Wales Office of Science Research,The University of Sydney and University of Western Sydney,Australia)
文摘In the 21st century, the public are more informed, mainly via the Internet, about health and medical products and have become more knowledgeable about matters relating to their health conditions and well-being in curing and preventing illnesses. They often self-medicate themselves with various health products and over-the-counter （OTC） medicines apart from prescribed pharmaceutical drugs （PD）. Some of those non-prescribed products may have doubtful quality control and contain harmful additives or unchecked ingredients; thus their usefulness is in doubt. The increasing popularity world-wide of using Chinese medicines （CM） and related OTC functional products has raised concerns over their concomitant use with PD and the consequential adverse effects. In most cases the alleged causes of adverse effects are linked with herbal sources, although the authorised information on the interactions between CM-PD is not plentiful in the literature. There is an urgent need for such a data base. The future professionals in health and medical care should be knowledgeable or aware of what their patients have been taking or given. In actual practice the patients may receive both treatments intentionally or unintentionally, with or without the awareness of the practitioner. In these situations a reliable database for interactions between CM-PD will be extremely useful for consultation when treatment problems appear or during emergency situations. Their combining of medications may be involved with possible outcomes of adverse reactions or beneficial effects. Such a database will be welcomed by both practitioners of herbal medicines and orthodox medicine practitioners in the emerging trend of integrative medicine. The author has been involved in various research projects of basic and clinical aspects in mainly CM among other herbal and PD. Examples will be given largely on those related to these disciplines as illustrations in this overview.
