During recovery from heat stress,plants clear away the heat-stress-induced misfolded proteins through the ubiquitin-proteasome system(UPS).In the UPS,the recognition of substrate proteins by E3 ligase can be regulated...During recovery from heat stress,plants clear away the heat-stress-induced misfolded proteins through the ubiquitin-proteasome system(UPS).In the UPS,the recognition of substrate proteins by E3 ligase can be regulated by the N-terminal acetyltransferase A(NatA)complex.Here,we determined that Arabidopsis STRESS-RELATED UBIQUITIN-ASSOCIATED-DOMAIN PROTEIN FACTOR 1(SUF1)interacts with the NatA complex core subunit NAA15 and positively regulates NAA15.The suf1 and naa15 mutants are sensitive to heat stress;the NatA substrate NSNC1 is stabilized in suf1 mutant plants during heat stress recovery.Therefore,SUF1 and its interactor NAA15 play important roles in basal thermotolerance in Arabidopsis.展开更多
椰果(Nata de Coco)是以椰子汁为主要原料,经由醋酸杆菌(Acetobacter)进行生物培养、发酵而成的一种具有独特凝胶结构的细菌纤维素。本文综述了生产过程中影响椰果产率的因素及椰果的物理化学特性、加工特性和功能特性,并提出该产品今...椰果(Nata de Coco)是以椰子汁为主要原料,经由醋酸杆菌(Acetobacter)进行生物培养、发酵而成的一种具有独特凝胶结构的细菌纤维素。本文综述了生产过程中影响椰果产率的因素及椰果的物理化学特性、加工特性和功能特性,并提出该产品今后的发展方向。展开更多
基金financially supported by grants from the National Natural Science Foundation of China(Nos 31625004and 31970287)the Zhejiang Provincial Talent Program(No.2019R52005)。
文摘During recovery from heat stress,plants clear away the heat-stress-induced misfolded proteins through the ubiquitin-proteasome system(UPS).In the UPS,the recognition of substrate proteins by E3 ligase can be regulated by the N-terminal acetyltransferase A(NatA)complex.Here,we determined that Arabidopsis STRESS-RELATED UBIQUITIN-ASSOCIATED-DOMAIN PROTEIN FACTOR 1(SUF1)interacts with the NatA complex core subunit NAA15 and positively regulates NAA15.The suf1 and naa15 mutants are sensitive to heat stress;the NatA substrate NSNC1 is stabilized in suf1 mutant plants during heat stress recovery.Therefore,SUF1 and its interactor NAA15 play important roles in basal thermotolerance in Arabidopsis.
