白粉病诱发的黄瓜叶球微生物群落动态变化

IF 3.5 3区 生物学 Q2 MICROBIOLOGY FEMS microbiology ecology Pub Date : 2024-04-11 DOI:10.1093/femsec/fiae050
Cong Yue, Changxia Du, Xiaodan Wang, Yinqing Tan, Xingchen Liu, Huaifu Fan
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引用次数: 0

摘要

叶球是微生物的重要栖息地,对植物的生长和健康有很大影响,叶球微生物的变化与叶片病害的发生密切相关。然而,人们对病原体感染导致的叶球微生物群落变化的了解仍然有限。在此,我们分析比较了三种病害严重程度(0% < L1 < 30%,30% ≤ L2 < 50%,L3 ≥ 50%,数字代表白粉病在叶片上的病斑覆盖率)下黄瓜叶球微生物的差异。不同病害程度下植物叶球群落的α多样性和群落结构存在明显差异。病害严重程度改变了叶球微生物的群落结构,在 L1 病害等级中,Rosenbergiella、Rickettsia 和 Cladosporium 所占比例最大,而在 L3 病害等级中,Bacillus、Pantoea、Kocuria 和 Podosphaera 的相对丰度最高。叶球微生物群落的共生网络分析表明,叶球细菌群落受病害严重程度的影响最大。我们的结果表明,随着黄瓜白粉病的发展,物种间的共生关系被打破,整个细菌群落趋于竞争。
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Powdery mildew-induced changes in phyllosphere microbial community dynamics of cucumber
As an important habitat for microorganisms, the phyllosphere has a great impact on plant growth and health, and changes in phyllosphere microorganisms are closely related to the occurrence of leaf diseases. However, there remains a limited understanding regarding alterations to the microbial community in the phyllosphere resulting from pathogen infections. Here, we analyzed and compared the differences in phyllosphere microorganisms of powdery mildew cucumber from three disease severity levels (0% < L1 < 30%, 30% ≤ L2 < 50%, L3 ≥ 50%, the number represents the lesion coverage rate of powdery mildew on leaves). There were significant differences in α diversity and community structure of phyllosphere communities under different disease levels. Disease severity altered the community structure of phyllosphere microorganisms, Rosenbergiella, Rickettsia, and Cladosporium accounted for the largest proportion in the L1 disease grade, while Bacillus, Pantoea, Kocuria, and Podosphaera had the highest relative abundance in the L3 disease grade. The co-occurrence network analysis of the phyllosphere microbial community indicated that the phyllosphere bacterial community was most affected by the severity of disease. Our results suggested that with the development of cucumber powdery mildew, the symbiotic relationship between species was broken, and the entire bacterial community tended to compete.
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来源期刊
FEMS microbiology ecology
FEMS microbiology ecology 生物-微生物学
CiteScore
7.50
自引率
2.40%
发文量
132
审稿时长
3 months
期刊介绍: FEMS Microbiology Ecology aims to ensure efficient publication of high-quality papers that are original and provide a significant contribution to the understanding of microbial ecology. The journal contains Research Articles and MiniReviews on fundamental aspects of the ecology of microorganisms in natural soil, aquatic and atmospheric habitats, including extreme environments, and in artificial or managed environments. Research papers on pure cultures and in the areas of plant pathology and medical, food or veterinary microbiology will be published where they provide valuable generic information on microbial ecology. Papers can deal with culturable and non-culturable forms of any type of microorganism: bacteria, archaea, filamentous fungi, yeasts, protozoa, cyanobacteria, algae or viruses. In addition, the journal will publish Perspectives, Current Opinion and Controversy Articles, Commentaries and Letters to the Editor on topical issues in microbial ecology. - Application of ecological theory to microbial ecology - Interactions and signalling between microorganisms and with plants and animals - Interactions between microorganisms and their physicochemical enviornment - Microbial aspects of biogeochemical cycles and processes - Microbial community ecology - Phylogenetic and functional diversity of microbial communities - Evolutionary biology of microorganisms
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