菌物学报2025，Vol.44Issue(9)：115-126,12.DOI:10.13346/j.mycosystema.250067
五种植物激素对干旱和高温胁迫下糙皮侧耳菌丝生长的影响
Effects of five phytohormones on the mycelial growth of Pleurotus ostreatus cultivated under drought and high-temperature stress
摘要
Abstract
Phytohormones play pivotal roles in regulating growth,development,and stress response of plant.To elucidate the roles of different phytohormones in regulating drought and high-temperature stress response of Pleurotus ostreatus,the effects of different concentrations of indole-3-acetic acid(IAA),abscisic acid(ABA),jasmonic acid(JA),gibberellic acid(GA3),trans-zeatin(tZ)on P.ostreatus mycelial growth were investigated under drought stress(5%sorbitol),high-temperature stress(40℃for 24 h),and the combined drought and high-temperature stress(5%sorbitol+40℃for 24 h).The results showed that there were differences in the effects of different concentrations of five phytohormones on P.ostreatus mycelial growth.Under normal growth condition,addition of 0.01-10 nmol/L IAA,50-1 000 µmol/L ABA,50-200 µmol/L JA and 10 µmol/L GA3 could promote mycelial growth,whereas addition of 50-1 000 µmol/L tZ inhibited mycelial growth.Under drought stress,addition of 0.01-0.1 nmol/L IAA,500-1 000 µmol/L ABA,10 µmol/L JA,50-500 µmol/L GA3 and 50-1 000 µmol/L tZ could promote the mycelial growth and enhance drought stress tolerance of P.ostreatus.Under high-temperature stress,addition of 0.01-10 nmol/L IAA,100-500 µmol/L ABA,10-100 µmol/L JA,50-500 µmol/L GA3 and 50-500 µmol/L tZ could promote the recovery growth and enhance high-temperature stress tolerance of P.ostreatus.Under the combined drought and high-temperature stress,addition of 100 µmol/L ABA,10-100 µmol/L JA,10-500 µmol/L GA3,and 50-1 000 µmol/L tZ could promote the recovery growth and enhance tolerance to the combined drought and high-temperature stress of P.ostreatus.The results of this study lay a theoretical foundation for future exploration of the practicality of phytohormones in P.ostreatus cultivation and mechanism clarification of phytohormones influencing the abiotic stress resistance of P.ostreatus.关键词
糙皮侧耳/植物激素/菌丝生长/干旱胁迫/高温胁迫Key words
Pleurotus ostreatus/phytohormone/mycelial growth/drought stress/high-temperature stress引用本文复制引用
文晴,赵俊朝,李沛麟,胡延如,申进文,戚元成,王风芹,刘晴..五种植物激素对干旱和高温胁迫下糙皮侧耳菌丝生长的影响[J].菌物学报,2025,44(9):115-126,12.基金项目
国家现代农业技术体系建设专项(CARS-20) （CARS-20）
河南省科技攻关项目(232102111111) （232102111111）
河南省农业良种联合攻关项目(2022030101) This work was supported by the China Agriculture Research System of MOF and MARA(CARS-20),the Key Program for Science and Technology Development of Henan Province(232102111111),and the Joint Research Project for Improved Agricultural Variety in Henan Province(2022030101). （2022030101）
