基质接种贝莱斯芽孢杆菌对番茄穴盘苗耐旱性的影响
Effect of Bacillus velezensis on Drought Tolerance of Tomato Plug Seedlings
张顺顺 1穆文强 2尚庆茂3
作者信息
- 1. 中国农业科学院蔬菜花卉研究所,蔬菜生物育种全国重点实验室,北京 100081
- 2. 中国农业大学食品科学与营养工程学院,北京 100083
- 3. 中国农业科学院蔬菜花卉研究所,蔬菜生物育种全国重点实验室,北京 100081;三亚中国农业科学院国家南繁研究院,海南三亚 572024;海南省农业科学院三亚研究院,海南三亚 572024
- 折叠
摘要
为探究贝莱斯芽孢杆菌(Bacillus velezensis)对番茄穴盘苗耐旱性的作用,选用番茄品种中杂302,通过基质接种贝莱斯芽孢杆菌(L-S60、L-H15、LPL-117),发现在干旱胁迫条件下,与未接种对照相比,番茄穴盘苗株高提高8.95%～13.05%,存活率提高6百分点以上,3株贝莱斯芽孢杆菌之间未存在显著差异;L-S60、L-H15和LPL-117处理茎叶中Mn和Zn含量增幅分别超过30.94%、7.59%,Ca、Mg含量降幅分别大于9.48%、15.93%;干旱胁迫第3天时,L-S60、L-H15和LPL-117处理叶片脯氨酸含量分别增加62.86%、78.27%、40.29%,干旱胁迫第8天时,丙二醛含量分别降低2.34%、18.96%、7.94%.表明基质接种贝莱斯芽孢杆菌可以有效提高番茄穴盘苗耐旱性,促进幼苗生长发育.
Abstract
The tomato variety'Zhongza 302'was selected to investigate the role of Bacillus velezensis(L-S60,L-H15,LPL-117)on the drought tolerance of tomato plug seedlings,which was sown into the substrate with Bacillus velezensis.It was found that compared with the control under drought stress,the height of the tomato plug seedlings was increased by 8.95%to 13.05%and survival rate was increased more than 6 percentage points.Besides,there was no significant difference existed between the three treatment groups.The increase of Mn and Zn content in stems and leaves of L-S60,L-H15 and LPL-117 treatments were respectively more than 30.94%,7.59%,and the decrease of Ca and Mg contents were respectively more than 9.48%and 15.93%.The proline content of leaves in treatment groups of L-S60,L-H15 and LPL-117 increased respectively 62.86%,78.27%and 40.29%on the 3rd day of drought stress,and the malondialdehyde content decreased respectively more than 2.34%,18.96%and 7.94%on the 8th day of drought stress.This indicates that the substrate inoculation with Bacillus velezensis can effectively improve the drought tolerance and promote the growth and development on tomato plug seedlings.
关键词
贝莱斯芽孢杆菌/番茄穴盘苗/耐旱性Key words
Bacillus velezensis/tomato plug seedlings/drought tolerance引用本文复制引用
基金项目
三亚中国农业科学院国家南繁研究院南繁专项(YDLH05)
海南省重大科技计划项目(ZDKJ2021005)
中央引导地方区域创新体系建设项目(XZ202202YD0002C-10)
国家现代农业产业技术体系资助项目(CARS-23-B10)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据