山东科学2017，Vol.30Issue(4)：26-30,5.DOI:10.3976/j.issn.1002-4026.2017.04.005
土壤杆菌固氮、溶磷活性及对植物的促生作用
Nitrogen fixation, phosphate solubilizing activity and plant growth promotion of Agrobacterium
摘要
Abstract
Through selective medium, the function of fixing nitrogen and dissolving phosphorus of 26 Agrobacterium strains were studied by both qualitative and quantitative analysis methods.Meanwhile, growth-promoting effect of Australian bio-control strain K1026 on cucumber and wheat was measured by pot experiment.The results showed that all the strains regardless of pathogenicity or non-pathogenicity could grow normally on nitrogen-free medium.19 of the 26 strains had the ability to dissolve phosphorus, the Phosphate released by K1026 in Pikovskaya broth medium was up to 109.11 μg/mL , having the strongest activities among all stains.The pot experiments showed that K1026 had obvious growth-promoting effect on the cucumber seedlings, and the root length and the dry weight of the root biomass was increased by 25.49%, 62.96%, respectively, compared with the control.However, K1026 had no obvious effect on the growth-promotion of wheat.关键词
土壤杆菌/AgrobacteriumrhizogenesK1026/固氮/溶磷/促生作用Key words
Agrobacterium tumefaciens/Agrobacterium rhizogenes K1026/nitrogen fixation/phosphate-solubilisation/growth promotion effect分类
农业科技引用本文复制引用
魏艳丽,Maarten RYDER,李纪顺,李玲,杨玉忠,杨合同..土壤杆菌固氮、溶磷活性及对植物的促生作用[J].山东科学,2017,30(4):26-30,5.基金项目
山东省重点研发计划(2016GNC113010) （2016GNC113010）
2017年度山东省引进国外智力成果示范推广项目 （）
黄河三角洲学者工程专项 （）
