Strawberry is a major fruit crop worldwide because its nutritional and health benefits to human health,but its productivity is limited by Botrytis cinerea.Sucrose nonfermentation 1-related protein kinase 1(SnRK1)has a...Strawberry is a major fruit crop worldwide because its nutritional and health benefits to human health,but its productivity is limited by Botrytis cinerea.Sucrose nonfermentation 1-related protein kinase 1(SnRK1)has a defense function against pathogens,but the function of SnRK1 in the defense response to B.cinerea in plants is still unclear.In this study,FaSnRK1a-OE and RNAi fruits were constructed and then inoculated with B.cinerea.The result reveals a positive role of Fa SnRK1a in the regulation of resistance to gray mold.FaSnRK1a affects SA content by regulating FaPAL1 and FaPAL2 expressions.The genes related to the SA signaling pathway(FaTGA1 and FaTGA2.1)were significantly increased/decreased in FaSnRK1a-OE or FaSnRK1a-RNAi fruit,respectively.FaSnRK1a interacted with the FaWRKY33.2 protein and negatively regulated FaWRKY33.2 expression,and FaWRKY33.2 acts as a repressor of disease resistance to B.cinerea.Finally,FaSnRK1a regulates the expression of six PR genes and the activities of antioxidant enzymes to boost defense response after B.cinerea inoculation.Our findings showed that FaSnRK1a increases the resistance of strawberry fruit to B.cinerea via SA signaling pathway and interaction with the FaWRKY33.2 transcription factor.展开更多
Worldwide,fruit is an indispensable treasure house of nutrition for human beings,occupying a vital position of human diet.Postharvest fruit storage requires efficient antifungal agents to control Botrytis cinerea,whic...Worldwide,fruit is an indispensable treasure house of nutrition for human beings,occupying a vital position of human diet.Postharvest fruit storage requires efficient antifungal agents to control Botrytis cinerea,which is a vital postharvest disease affecting fruit and leading to enormous losses.However,with the enormous abuse of existing antifungal drugs,the problem of drug-resistant fungi is imminent,making the controlling diseases caused by pathogenic fungi even more challenging.Drug repurposing is an efficient alternative method,we evaluated a well-known antifungal chemical,terbinafine,against the agricultural pathogen,B.cinerea in vitro,as a result,terbinafine showed strong anti-fungal activity.Furthermore,the in vivo antifungal activity of terbinafine was evaluated,the results showed that terbinafine could reduce the decay area on grapes.Terbinafine could disrupt the cell membrane integrity,increase cell membrane permeability,and eventual cell death of B.cinerea.In addition,terbinafine reduced decay incidence,and weight loss and maintained the soluble solids,titratable acidity,ascorbic acid,total phenolic,and malondialdehyde content during the storage period of grapes.Overall,terbinafine could be an antifungal preservative for postharvest table grapes fresh-keeping.展开更多
Soybean(Glycine max(Linn.)Merr.)annual leguminous crop is cultivated all over the world.The occurrence of diseases has a great impact on the yield and quality of soybean.In this study,based on the RNA-seq of soybean v...Soybean(Glycine max(Linn.)Merr.)annual leguminous crop is cultivated all over the world.The occurrence of diseases has a great impact on the yield and quality of soybean.In this study,based on the RNA-seq of soybean variety M18,a complete CDS(Coding sequence)GmPR1L of the pathogenesis-related protein 1 family was obtained,which has the ability to resist fungal diseases.The overexpression vector and interference expression vector were transferred into tobacco NC89,and the resistance of transgenic tobacco(Nicotiana tabacum L.)to Botrytis cinerea infection was identified.The results show that:Compared with the control,the activities of related defense enzymes SOD(Superoxide dismutase),POD(Peroxidase),PAL(L-phenylalanine ammonia-lyase)and PPO(Polyphenol oxidase)in the over-expressed transgenic tobacco OEA1 and OEA2 increased to different degrees,and increased significantly at different infection time points.The activities of defense enzymes in the interfering strains IEA1 and IEA2 were significantly lower than those in the control strains.The results of resistance level identification showed that the disease spot rate of OEA1 was significantly lower than that of the control line,and the disease spot rate of OEA2 was significantly lower than that of the control line.The plaque rate of the interfering expression line IEA1-IEA2 was significantly higher than that of the control line.It is preliminarily believed that the process related protein GmPR1L can improve the resistance of tobacco to B.cinerea.展开更多
基金supported by National Natural Science Foundation of China(Grant Nos.31672099,31801812)the National Modern Agroindustry Technology Research System Fund(Grant No.CARS-30-2-02)。
文摘Strawberry is a major fruit crop worldwide because its nutritional and health benefits to human health,but its productivity is limited by Botrytis cinerea.Sucrose nonfermentation 1-related protein kinase 1(SnRK1)has a defense function against pathogens,but the function of SnRK1 in the defense response to B.cinerea in plants is still unclear.In this study,FaSnRK1a-OE and RNAi fruits were constructed and then inoculated with B.cinerea.The result reveals a positive role of Fa SnRK1a in the regulation of resistance to gray mold.FaSnRK1a affects SA content by regulating FaPAL1 and FaPAL2 expressions.The genes related to the SA signaling pathway(FaTGA1 and FaTGA2.1)were significantly increased/decreased in FaSnRK1a-OE or FaSnRK1a-RNAi fruit,respectively.FaSnRK1a interacted with the FaWRKY33.2 protein and negatively regulated FaWRKY33.2 expression,and FaWRKY33.2 acts as a repressor of disease resistance to B.cinerea.Finally,FaSnRK1a regulates the expression of six PR genes and the activities of antioxidant enzymes to boost defense response after B.cinerea inoculation.Our findings showed that FaSnRK1a increases the resistance of strawberry fruit to B.cinerea via SA signaling pathway and interaction with the FaWRKY33.2 transcription factor.
基金the High-level Talent Promotion and Training Project of Kunming(2022SCP003)Project of Yunnan Characteristic Plant Screening and R&D Service CXO Platform(2022YKZY001)Scientific and Technological Innovation Team of Yunnan Province(202105AE160006)financial support。
文摘Worldwide,fruit is an indispensable treasure house of nutrition for human beings,occupying a vital position of human diet.Postharvest fruit storage requires efficient antifungal agents to control Botrytis cinerea,which is a vital postharvest disease affecting fruit and leading to enormous losses.However,with the enormous abuse of existing antifungal drugs,the problem of drug-resistant fungi is imminent,making the controlling diseases caused by pathogenic fungi even more challenging.Drug repurposing is an efficient alternative method,we evaluated a well-known antifungal chemical,terbinafine,against the agricultural pathogen,B.cinerea in vitro,as a result,terbinafine showed strong anti-fungal activity.Furthermore,the in vivo antifungal activity of terbinafine was evaluated,the results showed that terbinafine could reduce the decay area on grapes.Terbinafine could disrupt the cell membrane integrity,increase cell membrane permeability,and eventual cell death of B.cinerea.In addition,terbinafine reduced decay incidence,and weight loss and maintained the soluble solids,titratable acidity,ascorbic acid,total phenolic,and malondialdehyde content during the storage period of grapes.Overall,terbinafine could be an antifungal preservative for postharvest table grapes fresh-keeping.
基金This work was supported by Major Science and Technology Projects(20210302002NC)Jilin Province Science and Technology Development Plan Project,Grant Number 20190103120JH+2 种基金Jilin Province Science and Technology Development Plan—Outstanding Young Talents Fund Project,Grant Number 20190103120JThe Fourth Batch of Jilin Province Youth Science and Technology Talent Support Project,Grant Number QT202020National Natural Science Foundation of China Projects,Grant Number 31801381.
文摘Soybean(Glycine max(Linn.)Merr.)annual leguminous crop is cultivated all over the world.The occurrence of diseases has a great impact on the yield and quality of soybean.In this study,based on the RNA-seq of soybean variety M18,a complete CDS(Coding sequence)GmPR1L of the pathogenesis-related protein 1 family was obtained,which has the ability to resist fungal diseases.The overexpression vector and interference expression vector were transferred into tobacco NC89,and the resistance of transgenic tobacco(Nicotiana tabacum L.)to Botrytis cinerea infection was identified.The results show that:Compared with the control,the activities of related defense enzymes SOD(Superoxide dismutase),POD(Peroxidase),PAL(L-phenylalanine ammonia-lyase)and PPO(Polyphenol oxidase)in the over-expressed transgenic tobacco OEA1 and OEA2 increased to different degrees,and increased significantly at different infection time points.The activities of defense enzymes in the interfering strains IEA1 and IEA2 were significantly lower than those in the control strains.The results of resistance level identification showed that the disease spot rate of OEA1 was significantly lower than that of the control line,and the disease spot rate of OEA2 was significantly lower than that of the control line.The plaque rate of the interfering expression line IEA1-IEA2 was significantly higher than that of the control line.It is preliminarily believed that the process related protein GmPR1L can improve the resistance of tobacco to B.cinerea.
