碱胁迫下从布顿大麦分离的香柱菌属内生真菌对小黑麦生长和光合作用的影响  

Effects of endophytic fungus Epichloëbromicola on growth and photosynthesis of×Triticosecale Wittmack under alkali stress

作　　者：王晓茜 王凯 陈锐 路化乐 刘嘉霏 陈水红[1] 杜文华[3] WANG Xiaoqian;WANG Kai;CHEN Rui;LU Huale;LIU Jiafei;CHEN Shuihong;DU Wenhua(Xinjiang Production&Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin,College of Life Science and Technology,Tarim University,Aral 843300,Xinjiang,China;College of Animal Science and Technology,Tarim University,Aral 843300,Xinjiang,China;School of Grass Industry,Gansu Agricultural University,Lanzhou 730070,Gansu,China)

机构地区：[1]塔里木大学生命科学与技术学院塔里木盆地生物资源保护利用兵团重点实验室,新疆阿拉尔843300 [2]塔里木大学动物科学与技术学院,新疆阿拉尔843300 [3]甘肃农业大学草业学院,甘肃兰州730070

出　　处：《菌物学报》2023年第7期1551-1557,共7页Mycosystema

基　　金：塔里木大学校长基金(TDZKZD202201);大学生创新创业训练计划项目(202110757003);国家自然科学基金(32260356,31660689)。

摘　　要：本研究以布顿大麦Hordeum bogdanii为材料,从中分离出香柱菌属内生真菌,经纯化后接种到小黑麦植株体内,检测接菌成功后,对获得的内生真菌-小黑麦共生体以非共生体为对照进行混合碱胁迫实验,研究内生真菌对小黑麦的耐碱性生长和光合作用的影响。混合碱胁迫下接种内生真菌的小黑麦植株与未接种植株相比,内生真菌具有促进小黑麦植株生长,光合色素的合成,对叶片相对含水量影响显著,增强植株的根系活力的作用,可以提高小黑麦植株对混合碱胁迫的耐受能力。这将有助于培育耐盐碱品种,为盐碱地的合理利用和草产业的可持续发展提供重要的理论依据。Endophytic fungus Epichloëbromicola isolated from Hordeum bogdanii,was inoculated into triticale plants.Alkali stress experiment was carried out on the obtained endophytic fungus triticale symbiont,and non-symbiont triticale was designated as the control to study the effects of endophytic fungus on the alkali tolerant growth and photosynthesis of triticale.It was found that endophytic fungus inoculation could promote the growth and synthesis of photosynthetic pigments of alkali-stressed triticale,significantly affecting the relative water content of leaves,enhancing the root activity,and improving the tolerance to NaHCO3 and Na2CO3 mixed alkali stress.Study provides theoretical basis for rational utilization of saline alkali land and sustainable development of grass industry.

关 键 词：内生真菌 耐碱性 光合作用 

分 类 号：S512.4[农业科学—作物学]