来自Brassicaceae植物的植物免疫激活细菌的多样性和特征
Hiroki Kaneko1, Fuma Miyata1, Mari Kurokawa1
1Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Yamazaki, Noda, 2641, 278-8510, Chiba, Japan.
BMC microbiology
|July 5, 2023
概括
研究人员从卜植物中发现了新的植物免疫激活细菌. 这些生物控制剂增强了植物对病原体的防御机制,为农业提供了可持续的方法.
科学领域:
- 植物病理学 植物病理学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 激活植物免疫反应的微生物是农业中有价值的生物控制剂.
- 这项研究旨在识别和表征布拉西卡系植物中的这种微生物.
研究的目的:
- 为了隔离和识别激活植物免疫力的巴氏菌植物中的细菌.
- 描述这些细菌分离物的植物免疫激活特性和成分.
主要方法:
- 从Raphanus sativus var.中分离和识别了25种细菌菌株. 植物. hortensis. 植物植物.
- 对细菌菌株进行测试,以检测它们在烟草BY-2细胞中增强密码基因诱导的活性氧物种 (ROS) 生产的能力.
- 在阿拉比多普西斯的殖民测试和对Pseudomonas syringae pv.的病原性测试. 番茄 DC3000 和 Pectobacterium carotovorum 亚种. 这两种类型的番茄. 卡罗托沃鲁姆 NBRC 14082.2. 这是一个很好的方法.
- 研究免疫激活元件的局部化 (细胞与细胞外) 和比较基因组分析.
主要成果:
- 确定了10个细菌系,其中6个菌株显著增强了ROS产量.
- 伪omonas sp. 这种病毒是假的. RS3R-1,Rhodococcus sp. 这种菌种的 在RS1R-6和Pseudomonas sp.类病毒中. 在RS1P-1中,植物对特定的细菌病原体有较强的抗性.
- 格拉姆阴性细菌主要使用细胞成分,而格拉姆阳性细菌则利用细胞外成分来增强ROS.
- грам阴性Pseudomonas菌株中的脂多糖结构与ROS增强活性有关.
结论:
- 一项基于诱导ROS产生的新型试验成功识别了来自R. sativus的植物免疫激活细菌.
- 鉴定到的细菌,特别是Pseudomonas和Rhodococcus物种,显示出作为生物控制剂的潜力.
- 负责ROS增强活性的细菌成分因属和物种而异,表明植物免疫激活的机制各不相同.
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