中国生物防治学报2024，Vol.40Issue(1)：178-185,8.DOI:10.16409/j.cnki.2095-039x.2023.02.070
滋养节杆菌S17的分离鉴定及其对黄瓜促生能力研究
Isolation and Identification of Arthrobacter pascens S17 and Its Ability to Promote Growth of Cucumber
摘要
Abstract
In order to screen out the biocontrol bacteria with growth-promoting effect,soil samples were collected from Hebei,Shandong and other places,and the growth-promoting strains with high-yield IAA ability were isolated and screened,and the potential growth-promoting strains with growth-promoting ability were identified based on morphological characteristics,physiological and biochemical indexes and multi-gene phylogenetic tree analysis,and the growth-promoting effects of growth-promoting strains on cucumber seed germination and cucumber seedlings in pot experiments and field experiments were determined.The results showed that one bacterium,Arthrobacter pascens S17,which had a significant growth-promoting effect on cucumber seedlings,was isolated and identified.Arthrobacter pascens S17 could synthesize IAA in large quantities in DF+medium,and the highest IAA content was 128.54 μg/mL.The growth rate of cucumber seedling plant height and leaf area of cucumber seedlings reached 35.99％and 26.90％by root irrigation treatment with Arthrobacter pascens S17,and the physiological indexes of cucumber seedlings were significantly higher than those of the control.Arthrobacter pascens S17 has a significant effect on cucumber growth,and has a certain development and application prospect.关键词
滋养节杆菌/鉴定/促生/种子处理/田间试验Key words
Arthrobacter pascens/indentification/growth-promoting/seed treatment/field trials分类
农业科技引用本文复制引用
曾先锋,孙钰晨,谢学文,石延霞,柴阿丽,李宝聚,李磊..滋养节杆菌S17的分离鉴定及其对黄瓜促生能力研究[J].中国生物防治学报,2024,40(1):178-185,8.基金项目
北京设施蔬菜创新团队项目(BAIC01-2023) （BAIC01-2023）
中国农业科学院科技创新工程项目(CAAS-ASTIP-IVFCAAS) （CAAS-ASTIP-IVFCAAS）
农业农村部园艺作物生物学与种质创制重点实验室项目 （）
蔬菜生物育种全国重点实验室 （）
