Qian Yani, Jin Yuanyuan, Han Xinyao, Malik Kamran, Li Chunjie, Yu Binhua
Grassland Research Center of National Forestry and Grassland Administration, Chinese Academy of Forestry, Beijing 100091, China.
State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Lanzhou University, Lanzhou 730020, China.
Plants (Basel). 2024 Aug 1;13(15):2128. doi: 10.3390/plants13152128.
is a high-quality forage with wide distribution. Disease is an important factor affecting the yield and quality of . To investigate the effect of grazing on the phyllosphere microbiome community and leaf spot disease in , high-throughput sequencing technology was used to study the differences in the composition and structure of the phyllosphere fungal and bacterial communities of healthy and diseased leaves under different grazing intensities. The results showed that grazing significantly reduced leaf spot disease incidence and severity. There were significant differences in the phyllosphere microbiome composition between healthy and diseased leaves, and interestingly, diseased leaves showed more complex microbial activity. Grazing altered the relative abundance of micro-organisms and affected microbial dispersal and colonization either directly through behavior or indirectly by altering plant community structure. In this study, we found that the phyllosphere microbiome responded strongly to pathogen infection, and that plants recruited beneficial microbes to protect themselves after disease development. Grazing could regulate microbial community composition and structure, either directly or indirectly, and plays a crucial role in maintaining the health of .
是一种分布广泛的优质牧草。病害是影响其产量和品质的重要因素。为了研究放牧对其叶际微生物群落和叶斑病的影响，利用高通量测序技术研究了不同放牧强度下健康叶片和患病叶片叶际真菌和细菌群落的组成和结构差异。结果表明，放牧显著降低了叶斑病的发病率和严重程度。健康叶片和患病叶片的叶际微生物群落组成存在显著差异，有趣的是，患病叶片表现出更复杂的微生物活性。放牧改变了微生物的相对丰度，通过行为直接或通过改变植物群落结构间接影响微生物的扩散和定殖。在本研究中，我们发现叶际微生物群落对病原体感染反应强烈，并且植物在病害发生后会招募有益微生物来保护自己。放牧可以直接或间接地调节微生物群落的组成和结构，对维持其健康起着至关重要的作用。
