The determination of the biological function of bacterial pink pigment and Fusarium chlamydosporum on alfalfa (Medicago sativa L.)

Frontiers in Microbiology

Microbiology

Rong Huang¹  Haiyan Chen¹  Xiaoni Liu¹  Hong Zhang¹  Linxin He¹  Zhenfen Zhang² 

[1] Key Laboratory of Grassland Ecosystem, Ministry of Education, Sino-U.S. Centers for Grazing Land Ecosystem Sustainability, Ministry of Science and Technology, Pratacultural College, Gansu Agricultural University, Lanzhou, China;null;

关键词: Erwinia persicina;    bacterial pink pigment;    Fusarium chlamydosporum;    alfalfa;    plant growth and physiology;   

DOI  :  10.3389/fmicb.2023.1285961

 received in 2023-08-30, accepted in 2023-09-22,  发布年份 2023

来源: Frontiers

【 摘 要 】

Bacterial pigment is one of the secondary metabolites produced by bacteria and has functions that are yet to be understood in relation to soil-borne pathogenic fungi and plants in mutualistic processes. The study evaluates the growth, photosynthetic, and physiological characteristics of alfalfa after interacting with different concentrations of Cp2 pink pigment and Fusarium chlamydosporum. The findings showed that Cp2 pink pigment has the ability to inhibit the growth of alfalfa, with the inhibition ratio gradually increasing with rising concentration. F. chlamydosporum inhibited the growth of alfalfa, which reduced the photosynthetic physiological response and elevated antioxidant enzymes, which are typically manifested by yellowing leaves and shortened roots. Under the combined effect of Cp2 pink pigment and F. chlamydosporum, increasing concentrations of Cp2 pink pigment intensified the symptoms in alfalfa and led to more pronounced growth and physiological response. This indicates that the Cp2 pink pigment is one of the potential virulence factors secreted by the Erwinia persicina strain Cp2, which plays an inhibitory role in the interactions between F. chlamydosporum and alfalfa, and also has the potential to be developed into a plant immunomodulator agent.

【 授权许可】

Unknown   
Copyright © 2023 Huang, Zhang, Chen, He, Liu and Zhang.