Isolation of a pink-pigmented facultative methylotrophic bacteria and its growth-promoting effect on pepper plants
文献类型： 外文期刊
作者： Yang, Ting 1 ; Shi, Fachao 2 ; An, Yuxing 1 ; Sun, Donglei 1 ; Lu, Yinglin 1 ;
作者机构： 1.Guangdong Acad Sci, Guangdong Prov Pesticide Fertilizer Technol Res C, Inst Nanfan & Seed Ind, Guangzhou 510316, Peoples R China
2.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Peoples R China
关键词： Growth promotion; indole-3-acetic acid; Methylobacterium populi; nitrogen fixation; pepper plants; sugarcane rhizosphere
期刊名称：CURRENT SCIENCE （ 影响因子：1.169； 五年影响因子：1.228 ）
ISSN： 0011-3891
年卷期： 2022 年 123 卷 2 期
页码：
收录情况： SCI
摘要： Microorganisms offer a low-cost, eco-friendly alternative to chemical fertilizers. A pink-pigmented facultative methylotrophic bacterium Gen-B2 was isolated from sugarcane rhizosphere and its growth-promoting activity was detected using in vitro experiments. Based on morphological, biochemical and molecular characteristics, Gen-B2 was identified as Methylobacterium populi. Pepper seedling inoculation significantly benefitted shoot/root fresh/dry weight, plant height, chlorophyll content and average true leaf number. Determination of activities related to growth promotion indicated that Gen-B2 promoted plant growth through nitrogen fixation and indole acetic acid synthesis. The present study suggests that this bacterium has great potential to be used as a bioinoculant for sustainable cultivation.
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