Zhou Aiting, Wang Fang, Yin Jiabi, Peng Ruiqi, Deng Jia, Shen Dezhou, Wu Jianrong, Liu Xiaoyun, Ma Huancheng
Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Southwest China, Southwest Forestry University, Kunming, China.
Key Laboratory of Microbial Diversity Research and Application of Hebei Province, School of Life Sciences, Hebei University, Baoding, China.
Front Microbiol. 2022 Aug 25;13:956642. doi: 10.3389/fmicb.2022.956642. eCollection 2022.
Anthracnose disease caused by is a serious disease that can afflict . Biological control is a rapidly growing approach for the management of plant diseases. In this study, we investigated the bio-control efficiency and the defense responses of an endophytic strain YYC 155, which was isolated from the root nodules of the against anthracnose disease, caused by in YYC 155 exhibited significant inhibitory activity against anthracnose disease, caused by in YYC 155 can secrete extracellular hydrolases, such as chitinase and β-1, 3-glucanase, which produce lipopeptides that are antimicrobial and forms strong biofilms. In addition, in treatment with YYC 155, the cell membranes of were injured and the leakage of cell contents from the mycelia of the pathogen was increased. Spraying 1 × 10 cells mL bacterial suspension of YYC 155 on leaves enhanced the activity of key enzymes in associated with the phenylpropanoid pathway and increased the content of phenolic compounds and flavonoids. Results of our study indicate that YYC 155 may potentially represent an effective biocontrol agent against anthracnose disease in .
由[病原体名称未给出]引起的炭疽病是一种可侵袭[宿主名称未给出]的严重疾病。生物防治是一种快速发展的植物病害管理方法。在本研究中,我们调查了从[宿主名称未给出]根瘤中分离出的内生[菌株名称未给出]菌株YYC 155对由[病原体名称未给出]引起的炭疽病的生物防治效率和防御反应。YYC 155对由[病原体名称未给出]引起的炭疽病表现出显著的抑制活性。YYC 155可分泌细胞外水解酶,如几丁质酶和β-1,3-葡聚糖酶,这些酶产生具有抗菌作用的脂肽并形成强大的生物膜。此外,在用YYC 155处理时,[病原体名称未给出]的细胞膜受到损伤,病原体菌丝体细胞内容物的泄漏增加。在[宿主名称未给出]叶片上喷洒1×10个/毫升的YYC 155细菌悬浮液可增强[宿主名称未给出]中与苯丙烷途径相关的关键酶的活性,并增加酚类化合物和黄酮类化合物的含量。我们的研究结果表明,YYC 155可能是一种有效的防治[宿主名称未给出]炭疽病的生物防治剂。