Photosynthetic bacterium Rhodopseudomonas palustris GJ-22 induces systemic resistance against viruses
文献类型： 外文期刊
作者： Su, Pin 1 ; Tan, Xinqiu 1 ; Li, Chenggang 1 ; Zhang, Deyong 1 ; Cheng, Ju'e 1 ; Zhang, Songbai 1 ; Zhou, Xuguo 2 ; Yan, Q 1 ;
作者机构： 1.Hunan Acad Agr Sci, Hunan Plant Protect Inst, Changsha 410125, Hunan, Peoples R China
2.Univ Kentucky, Dept Entomol, Lexington, KY 40546 USA
3.Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China
期刊名称：MICROBIAL BIOTECHNOLOGY （ 影响因子：5.813； 五年影响因子：6.559 ）
ISSN： 1751-7915
年卷期： 2017 年 10 卷 3 期
页码：
收录情况： SCI
摘要： Photosynthetic bacteria (PSB) have been extensively used in agriculture to promote plant growth and to improve crop quality. Their potential application in plant disease management, however, is largely overlooked. In this study, the PSB strain Rhodopseudomonas palustris GJ-22 was investigated for its ability to induce resistance against a plant virus while promoting plant growth. In the field, a foliar spray of GJ-22 suspension protected tobacco plants against tobacco mosaic virus (TMV). Under axenic conditions, GJ-22 colonized the plant phyllosphere and induced resistance against TMV. Additionally, GJ-22 produced two phytohormones, indole-3-acetic acid and 5-aminolevulinic acid, which promote growth and germination in tobacco. Furthermore, GJ-22-inoculated plants elevated their immune response under subsequent TMV infection. This research may give rise to a novel biological agent with a dual function in disease management while promoting plant growth.
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