期刊论文

Effects of growth-promoting bacteria on root morphology and physiological metabolism of Artemisia selengensis under cadmium stress

中文

湖南城市学院学报(自然科学版)

1672-7304

2022

31

2

54-59

10.3969/j.issn.1672-7304.2022.02.0010

2019JJ40013:湖南省自然科学基金 2015JJ4012:湖南省自然科学基金 19K016:湖南省教育厅创新平台开放基金项目

本校为第一机构

为揭示促生菌对Cd胁迫下蒌蒿根系生长发育的调控机理，采用盆栽试验，利用具促生功能的Bacillus sp.T3,Pantoea agglomerans J2和Pseudomonas fluorescens Y5的混合菌剂进行接种试验，研究Cd胁迫下促生菌对蒌蒿根系形态、各营养元素、渗透调节物质及内源激素含量的影响﹒结果表明：促生菌可改善蒌蒿的根系形态，与单一Cd胁迫相比，蒌蒿根系的根长、根表面积和鲜重分别增加了26.9%,84.7%和18.2%；促生菌促进了蒌蒿根系对土壤中P,K和Fe的吸收，在促生菌的作用下，蒌蒿根系中P,K和Fe含量分别增加了86.8%,15.3%和46.7%；经过接菌处理，蒌蒿根系中可溶性糖和可溶性蛋白质含量分别提高了55.7%和46.1%，...

In order to reveal the regulation mechanism of plant growth-promoting bacteria(PGPB)on root growth and development of Artemisia selengensis under cadmium stress,a pot experiment was conducted to study the effects of growth-promoting bacteria on root morphology,nutrient elements,osmotic regulation substances and endogenous hormone contents of Artemisia selengensis under cadmium stress by using the mixture of Bacillus sp.T3,Pantoea agglomerans J2 and Pseudomonas fluorescens Y5.The results showed that the PGPB could improve the root morphology of Artemisia selengensis,compared with single cadmium...