Plants response to various biotic and abiotic factors requires not only the de novo synthesis of proteins and enzymesbut also their precise and timely degradation. The latter is achieved through protein degradation ma...Plants response to various biotic and abiotic factors requires not only the de novo synthesis of proteins and enzymesbut also their precise and timely degradation. The latter is achieved through protein degradation machinerysuch as the ubiquitin proteasome pathway (UPS). The UPS plays a central role in maintaining cellular physiologyand orchestrating plant response to stresses responses. The UPS regulates all stages of defense response from pathogenperception to mounting defense response, this make the UPS a suitable candidate for host manipulation. Virusesare obligatory intracellular pathogens and master of manipulating host defense machinery for successful infectionand spread. Several reports suggest a dynamic interaction between the host UPS machinery and viruses. This reviewfocuses on our current understanding of the involvement of UPS in defense against plant viruses and how viruseshave evolved mechanisms to counter and exploit UPS machinery for their advantage.展开更多
Global crop production is severely affected by environmental factors such as drought,salinity,cold,flood etc.Among these stresses,drought is one of the major abiotic stresses reducing crop productivity.It is expected ...Global crop production is severely affected by environmental factors such as drought,salinity,cold,flood etc.Among these stresses,drought is one of the major abiotic stresses reducing crop productivity.It is expected that drought conditions will further increase because of the increasing global temperature.In general,viruses are seen as a pathogen affecting the crop productivity.However,several researches are showing that viruses can induce drought tolerance in plants.This review explores the mechanisms underlying the interplay between viral infections and the drought response mechanisms in plants.We tried to address the molecular pathways and physiological changes induced by viruses that confer drought tolerance,including alterations in hormone signaling,antioxidant defenses,scavenging the reactive oxygen species,role of RNA silencing and miRNA pathway,change in the expression of several genes including heat shock proteins,cellulose synthase etc.Furthermore,we discuss various viruses implicated in providing drought tolerance and examine the range of plant species exhibiting this phenomenon.By applying current knowledge and identifying gaps in understanding,this review aims to provide valuable insights into the complex dynamics of virus-induced drought tolerance in plants,paving the way for future research directions and practical applications in sustainable agriculture.展开更多
文摘Plants response to various biotic and abiotic factors requires not only the de novo synthesis of proteins and enzymesbut also their precise and timely degradation. The latter is achieved through protein degradation machinerysuch as the ubiquitin proteasome pathway (UPS). The UPS plays a central role in maintaining cellular physiologyand orchestrating plant response to stresses responses. The UPS regulates all stages of defense response from pathogenperception to mounting defense response, this make the UPS a suitable candidate for host manipulation. Virusesare obligatory intracellular pathogens and master of manipulating host defense machinery for successful infectionand spread. Several reports suggest a dynamic interaction between the host UPS machinery and viruses. This reviewfocuses on our current understanding of the involvement of UPS in defense against plant viruses and how viruseshave evolved mechanisms to counter and exploit UPS machinery for their advantage.
文摘Global crop production is severely affected by environmental factors such as drought,salinity,cold,flood etc.Among these stresses,drought is one of the major abiotic stresses reducing crop productivity.It is expected that drought conditions will further increase because of the increasing global temperature.In general,viruses are seen as a pathogen affecting the crop productivity.However,several researches are showing that viruses can induce drought tolerance in plants.This review explores the mechanisms underlying the interplay between viral infections and the drought response mechanisms in plants.We tried to address the molecular pathways and physiological changes induced by viruses that confer drought tolerance,including alterations in hormone signaling,antioxidant defenses,scavenging the reactive oxygen species,role of RNA silencing and miRNA pathway,change in the expression of several genes including heat shock proteins,cellulose synthase etc.Furthermore,we discuss various viruses implicated in providing drought tolerance and examine the range of plant species exhibiting this phenomenon.By applying current knowledge and identifying gaps in understanding,this review aims to provide valuable insights into the complex dynamics of virus-induced drought tolerance in plants,paving the way for future research directions and practical applications in sustainable agriculture.
