|本期目录/Table of Contents|

[1]韦廷舟,文怡,王超,等.一株产IAA芽孢杆菌ST37对油菜的耐盐促生作用[J].江苏农业科学,2023,51(6):210-215.
 Wei Tingzhou,et al.Study on salt-tolerance and growth-promoting effect of an IAA-producing Bacillus ST37 on Brassica napus[J].Jiangsu Agricultural Sciences,2023,51(6):210-215.
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一株产IAA芽孢杆菌ST37对油菜的耐盐促生作用(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第51卷
期数:
2023年第6期
页码:
210-215
栏目:
资源与环境
出版日期:
2023-03-20

文章信息/Info

Title:
Study on salt-tolerance and growth-promoting effect of an IAA-producing Bacillus ST37 on Brassica napus
作者:
韦廷舟13 文怡1 王超2 王爽1 陈云1 张泽颖1 范清锋13 胡琬新1 龙治坚13 江世杰13
1.西南科技大学生命科学与工程学院,四川绵阳 621010; 2.四川卫生康复职业学院,四川自贡 643000;3.西南科技大学生物质材料教育部工程研究中心,四川绵阳 621010
Author(s):
Wei Tingzhouet al
关键词:
植物根际促生菌油菜种子吲哚乙酸耐盐促生芽孢杆菌
Keywords:
-
分类号:
S182
DOI:
-
文献标志码:
A
摘要:
植物根际促生菌(PGPR)具有促进非生物胁迫下植物种子萌发和幼苗生长的特性。通过在盐胁迫下接种盐矿区污染土壤中分离的菌株ST37,评价其对油菜种子萌发和幼苗生长的促生作用,结合细菌形态特征和16S rDNA序列分析对其进行鉴定,同时测定ST37的耐盐能力及其产吲哚乙酸(IAA)、解钾、产铁载体、产1-氨基-环丙烷-1-羧酸(ACC)脱氨酶的能力。结果表明,试验菌株ST37在盐胁迫下对油菜种子萌发和幼苗生长具有较好的促生效果,50 mmol/L NaCl处理下,种子发芽率、发芽势增长率均为6.67%,幼苗根长和株高增长率分别达到11.15%和23540%;经理化性质分析和分子生物学鉴定,ST37菌株为Bacillus mobilis,具有耐受4% NaCl胁迫能力,在0~4% NaCl培养条件下均可分泌IAA,其分泌IAA含量最高为6.82 mg/L。ST37菌株还具有解钾、产铁载体和产ACC脱氨酶的能力。表明菌株ST37通过分泌IAA、解钾等多种方式缓解盐胁迫对油菜种子和幼苗生长的损伤,结果可为耐盐生物菌肥/剂的开发提供候选菌种资源。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2022-05-06
基金项目:四川省科技创新苗子工程(编号:2021070);自贡市重点科技计划(编号:2020YGJC10);四川省大学生创新创业训练计划(编号:S202110619123)。
作者简介:韦廷舟(1996—),男,贵州兴仁人,硕士研究生,研究方向为植物根际细菌促生。E-mail:1565071306@qq.com。
通信作者:江世杰,博士,讲师,主要从事特殊环境生物资源利用研究。E-mail:shijiejiang525@163.com。
更新日期/Last Update: 2023-03-20