Nutrient availability is a determining factor for crop yield and quality.While fertilization is a major approach for improving plant nutrition,its efficacy can be limited and the production and application of fertiliz...Nutrient availability is a determining factor for crop yield and quality.While fertilization is a major approach for improving plant nutrition,its efficacy can be limited and the production and application of fertilizers frequently bring problems to the environment.A large number of soil microbes are capable of enhancing plant nutrient acquisition and thereby offer environmentally benign solutions to meet the requirements of plant nutrition.Herein we provide summations of how beneficial microbes enhance plant acquisition of macronutrients and micronutrients.We also review recent studies on nutrition-dependent plant-microbe interactions,which highlight the plant’s initiative in establishing or deterring the plant-microbe association.By dissecting complex signaling interactions between microbes within the root microbiome,a greater understanding of microbe-enhanced plant nutrition under specific biotic and abiotic stresses will be possible.展开更多
Premature plant senescence induced by abiotic stresses is a major cause of agricultural losses worldwide. Tools for suppressing stress-induced plant senescence are limited. Here, we report that diacetyl, a natural com...Premature plant senescence induced by abiotic stresses is a major cause of agricultural losses worldwide. Tools for suppressing stress-induced plant senescence are limited. Here, we report that diacetyl, a natural compound emitted by the plantbeneficial bacterium Bacillus amyloliquefaciens,suppresses abscisic acid-mediated foliar senescence in Arabidopsis thaliana under various abiotic stress conditions. Our results establish diacetyl as an effective protector against stressinduced plant senescence and reveal a molecular mechanism for bacteria-enhanced plant stress resistance.展开更多
文摘Nutrient availability is a determining factor for crop yield and quality.While fertilization is a major approach for improving plant nutrition,its efficacy can be limited and the production and application of fertilizers frequently bring problems to the environment.A large number of soil microbes are capable of enhancing plant nutrient acquisition and thereby offer environmentally benign solutions to meet the requirements of plant nutrition.Herein we provide summations of how beneficial microbes enhance plant acquisition of macronutrients and micronutrients.We also review recent studies on nutrition-dependent plant-microbe interactions,which highlight the plant’s initiative in establishing or deterring the plant-microbe association.By dissecting complex signaling interactions between microbes within the root microbiome,a greater understanding of microbe-enhanced plant nutrition under specific biotic and abiotic stresses will be possible.
文摘Premature plant senescence induced by abiotic stresses is a major cause of agricultural losses worldwide. Tools for suppressing stress-induced plant senescence are limited. Here, we report that diacetyl, a natural compound emitted by the plantbeneficial bacterium Bacillus amyloliquefaciens,suppresses abscisic acid-mediated foliar senescence in Arabidopsis thaliana under various abiotic stress conditions. Our results establish diacetyl as an effective protector against stressinduced plant senescence and reveal a molecular mechanism for bacteria-enhanced plant stress resistance.
