Degradation of soil arbuscular mycorrhizal fungal diversity and functionality accompanied by the aggravation of pepper Phytophthora blight in a facility shed in Southwest China

Dados Bibliográficos

ID21648748
AutoresMinghui Li (0000-0001-7847-9240, State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science, Chinese Academy of Sciences Nanjing PR China), Peng Cai (0000-0003-0238-7256, State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science, Chinese Academy of Sciences Nanjing PR China), Shaowei Hou (State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science, Chinese Academy of Sciences Nanjing PR China), Cheng Zhang (0009-0002-0231-8971, Sichuan Agricultural University), Zhang Cheng (0000-0003-4397-9119, College of Environment Sichuan Agricultural University Chengdu PR China), Fuyong Wu (0000-0002-9566-0698, Key Laboratory of Plant Nutrition and the Agri‐Environment in Northwest China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment Northwest A&F University Xianyang PR China), Xiangui Lin (0000-0003-4230-5825, State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science, Chinese Academy of Sciences Nanjing PR China), Junli Hu (0000-0002-1570-9018, State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science, Chinese Academy of Sciences Nanjing PR China, autor correspondente)
Ano2022
Volume33
Fascículo9
Páginas1337-1346
Data de publicação2022-05-30
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoLand Degradation and Development (JOURNAL)
Identificadores do periódicoISSN: 1085-3278 • E-ISSN: 1099-145X
EditoraWiley (PUBLISHER • GB)
DOI10.1002/ldr.4228
OpenAlexW4211000962
IdiomaEN
Referências citadas56

Arbuscular mycorrhizal (AM) fungi play a vital role in plant's resistance against soil‐borne pathogens including Phytophthora capsici , which causes the devastating Phytophthora blight and threatens pepper ( Capsicum annuum L.) cultivation worldwide. In order to understand the interaction of indigenous AM fungal community and P. capsici during the aggravation of Phytophthora blight, a survey was performed in a facility shed in Southwest China. The blight severity of pepper plants was evaluated based on a 0–5 scale (L0–L5), and the corresponding root AM fungal colonization, and the abundance and community composition of AM fungi as well as the population of P. capsici in root‐adjacent soil, were all investigated. Along with the rise of disease severity, increased soil P. capsici population was shown. In contrast, there were significant decreases in root colonization rate and the diversity indices rather than the abundance of soil AM fungi. The root colonization rate and the diversity indices of AM fungi all showed significant negative correlations with soil P. capsici population. Compared to plants with lower disease severities (L0–L2), higher severities (L3–L5) significantly modified soil AM fungal community composition, mainly through replacing the beneficial Glomus phylotypes by Paraglomus ones. Overall, the results disclosed the dynamic competition between indigenous AM fungi and P. capsici behind the onset of pepper Phytophthora blight, which highlights the importance of establishing soil suppressiveness on the control of soil‐borne diseases

Agronomy · Biology · Blight · Pepper · Phytophthora · Phytophthora capsici · Population · Root rot · Mycorrhizal Fungi and Plant Interactions · Plant Parasitism and Resistance · Plant Pathogens and Fungal Diseases · Horticulture