{"title":"长白参根芽孢杆菌CclA损失在提高绿豆抗枯枯性中的作用。","authors":"Xinyu Xie, Chenxi Ma, Shan Liu, Ying Gao, Rui Cao, Yu Zhang, Fujuan Feng, Yanfeng Hu, Wei Meng, Lijian Xu","doi":"10.1111/pce.70145","DOIUrl":null,"url":null,"abstract":"<p><p>Rhizoctonia solani is a soil-borne pathogen causing destructive diseases on various economically important crops. Beneficial plant and fungus interactions are well acknowledged to enhance plant resistance to biotic stresses. However, the underlying mechanisms are not fully understood, especially the contribution of fungal epigenetic regulation remains poorly understood. Here, we characterized Parametarhizium changbaiense as a beneficial fungus that promoted mung bean growth and priming resistance to damping off caused by R. solani. Knockout of CclA, a subunit of the COMPASS complex involved in H3K4 methylation, reduced the H3K4me1 and 3 levels in P. changbaiense and diminished the fungal growth and conidiation. However, PcCclA deletion enhanced the root colonisation and further bolstered disease resistance, which correlated with intensified lignin content, lignification in the stem cells, and reactive oxygen species (ROS) scavenging ability, indicating a boost in priming defense responses. Taken together, our findings not only supported a conserved function of PcCclA in fungal growth regulation, but also demonstrated the role of PcCclA-mediated H3K4 methylation in host defense priming, which deepens the understanding of the importance of fungal epigenetic regulation in the plant-beneficial fungus interaction. Meanwhile, we also provided a strategy to enhance priming defense response through epigenetic engineering of plant-beneficial fungi.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.3000,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Role of CclA Loss in Parametarhizium changbaiense in Enhancing Priming Resistance of Mung Bean Against Damping Off Induced by Rhizoctonia solani.\",\"authors\":\"Xinyu Xie, Chenxi Ma, Shan Liu, Ying Gao, Rui Cao, Yu Zhang, Fujuan Feng, Yanfeng Hu, Wei Meng, Lijian Xu\",\"doi\":\"10.1111/pce.70145\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Rhizoctonia solani is a soil-borne pathogen causing destructive diseases on various economically important crops. Beneficial plant and fungus interactions are well acknowledged to enhance plant resistance to biotic stresses. However, the underlying mechanisms are not fully understood, especially the contribution of fungal epigenetic regulation remains poorly understood. Here, we characterized Parametarhizium changbaiense as a beneficial fungus that promoted mung bean growth and priming resistance to damping off caused by R. solani. Knockout of CclA, a subunit of the COMPASS complex involved in H3K4 methylation, reduced the H3K4me1 and 3 levels in P. changbaiense and diminished the fungal growth and conidiation. However, PcCclA deletion enhanced the root colonisation and further bolstered disease resistance, which correlated with intensified lignin content, lignification in the stem cells, and reactive oxygen species (ROS) scavenging ability, indicating a boost in priming defense responses. Taken together, our findings not only supported a conserved function of PcCclA in fungal growth regulation, but also demonstrated the role of PcCclA-mediated H3K4 methylation in host defense priming, which deepens the understanding of the importance of fungal epigenetic regulation in the plant-beneficial fungus interaction. Meanwhile, we also provided a strategy to enhance priming defense response through epigenetic engineering of plant-beneficial fungi.</p>\",\"PeriodicalId\":222,\"journal\":{\"name\":\"Plant, Cell & Environment\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2025-08-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plant, Cell & Environment\",\"FirstCategoryId\":\"2\",\"ListUrlMain\":\"https://doi.org/10.1111/pce.70145\",\"RegionNum\":1,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant, Cell & Environment","FirstCategoryId":"2","ListUrlMain":"https://doi.org/10.1111/pce.70145","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
Role of CclA Loss in Parametarhizium changbaiense in Enhancing Priming Resistance of Mung Bean Against Damping Off Induced by Rhizoctonia solani.
Rhizoctonia solani is a soil-borne pathogen causing destructive diseases on various economically important crops. Beneficial plant and fungus interactions are well acknowledged to enhance plant resistance to biotic stresses. However, the underlying mechanisms are not fully understood, especially the contribution of fungal epigenetic regulation remains poorly understood. Here, we characterized Parametarhizium changbaiense as a beneficial fungus that promoted mung bean growth and priming resistance to damping off caused by R. solani. Knockout of CclA, a subunit of the COMPASS complex involved in H3K4 methylation, reduced the H3K4me1 and 3 levels in P. changbaiense and diminished the fungal growth and conidiation. However, PcCclA deletion enhanced the root colonisation and further bolstered disease resistance, which correlated with intensified lignin content, lignification in the stem cells, and reactive oxygen species (ROS) scavenging ability, indicating a boost in priming defense responses. Taken together, our findings not only supported a conserved function of PcCclA in fungal growth regulation, but also demonstrated the role of PcCclA-mediated H3K4 methylation in host defense priming, which deepens the understanding of the importance of fungal epigenetic regulation in the plant-beneficial fungus interaction. Meanwhile, we also provided a strategy to enhance priming defense response through epigenetic engineering of plant-beneficial fungi.
期刊介绍:
Plant, Cell & Environment is a premier plant science journal, offering valuable insights into plant responses to their environment. Committed to publishing high-quality theoretical and experimental research, the journal covers a broad spectrum of factors, spanning from molecular to community levels. Researchers exploring various aspects of plant biology, physiology, and ecology contribute to the journal's comprehensive understanding of plant-environment interactions.