三种外源物质对植原体侵染“玛瑙红”樱桃光合作用的影响  

Effects of Three Exogenous Substances on the Photosynthesis of Prunus pseudocerasu L.Manaohong'Infected With Phytoplasma

作　　者：宋常美 李庆宏[2] SONG Changmei;LI Qinghong(College of Biology and Environmental Engineering,Guiyang University,Guiyang,Guizhou 550005;Guiyang Agricultural Experimental Center,Guiyang,Guizhou 550018)

机构地区：[1]贵阳学院生物与环境工程学院,贵州贵阳550005 [2]贵阳市农业试验中心,贵州贵阳550018

出　　处：《北方园艺》2024年第24期21-28,共8页Northern Horticulture

基　　金：国家自然科学基金地区基金资助项目(32160693);贵州省林业科学技术研究资助项目(黔林科合[2020]);贵阳学院学科团队建设资助项目(2022-xk12)。

摘　　要：以感染植原体病害的“玛瑙红”樱桃为试材,采用外源茉莉酸甲酯(0.1 mmol·L^(-1))、褪黑素(0.1 mmol·L^(-1))和四环素(1 mmol·L^(-1))进行处理,测定植株光合参数、叶绿素和相关酶活性,并进行叶片显微结构观察,研究了3种外源物质对植原体侵染后的光合作用的影响,以期为“玛瑙红”樱桃植原体病害防治提供参考依据。结果表明:3种物质能改善感病植株叶片的显微结构,提高叶绿素含量,提高光合参数及部分酶活性。茉莉酸甲酯处理与四环素处理结果相似,优于褪黑素处理。Prunus pseudocerasu L.‘Manaohong'infected with phytoplasma diseases were used as test materials.Exogenous methyl jasmonate(0.1 mmols·L^(-1)),melatonin(0.1 mmol·L^(-1)),and tetracycline(1 mmol·L^(-1))were used for treatments.Then the photosynthetic parameters,chlorophyll and related enzyme activity of plants were determined,the microstructure of leaves was observed,and the effects of three exogenous substances on photosynthesis after phytoplasma infection were studied,in order to provide reference for the prevention and control of Prunus pseudocerasu L.‘Manaohong’phytoplasma disease.The results showed that the three substances could improve the microstructure of the leaves of susceptible plants,increase chlorophyll content,increase photosynthetic parameters and some enzyme activity.The results of methyl jasmonate treatment were similar to those of tetracycline treatment,but superior to melatonin treatment.

关 键 词：“玛瑙红”樱桃 茉莉酸甲酯 褪黑素 四环素 光合作用 

分 类 号：S662.5[农业科学—果树学]