Ecology and diversity of culturable fungal species associated with soybean seedling diseases in the Midwestern United States.

Autor: Pimentel MF; Department of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA., Srour AY; USDA, ARS, New England Plant, Soil, and Water Laboratory, Orono, Maine, USA., Warner AJ; Syngenta Crop Protection, Raleigh-Durham, North Carolina, USA., Bond JP; Department of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA., Bradley CA; Department of Plant Pathology, University of Kentucky Research and Educational Center, Princeton, Kentucky, USA., Rupe J; Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, Arkansas, USA., Chilvers MI; Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan, USA., Rojas JA; Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan, USA., Jacobs JL; Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan, USA., Little CR; Department of Plant Pathology, Kansas State University, Manhattan, Kansas, USA., Robertson AE; Department of Plant Pathology and Microbiology, Iowa State University, Ames, Iowa, USA., Giesler LJ; Department of Plant Pathology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA., Malvick D; Department of Plant Pathology, University of Minnesota, Minneapolis, Minnesota, USA., Wise K; Department of Botany and Plant Pathology, Purdue University, West Lafayette, Indiana, USA., Tenuta A; Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA), Ridgetown, Ontario, USA., Fakhoury AM; Department of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA.
Jazyk: angličtina
Zdroj: Journal of applied microbiology [J Appl Microbiol] 2022 May; Vol. 132 (5), pp. 3797-3811. Date of Electronic Publication: 2022 Mar 08.
DOI: 10.1111/jam.15507
Abstrakt: Aims: To isolate and characterize fungi associated with diseased soybean seedlings in Midwestern soybean production fields and to determine the influence of environmental and edaphic factors on their incidence.
Methods and Results: Seedlings were collected from fields with seedling disease history in 2012 and 2013 for fungal isolation. Environmental and edaphic data associated with each field was collected. 3036 fungal isolates were obtained and assigned to 76 species. The most abundant genera recovered were Fusarium (73%) and Trichoderma (11.2%). Other genera included Mortierella, Clonostachys, Rhizoctonia, Alternaria, Mucor, Phoma, Macrophomina and Phomopsis. Most recovered species are known soybean pathogens. However, non-pathogenic organisms were also isolated. Crop history, soil density, water source, precipitation and temperature were the main factors influencing the abundance of fungal species.
Conclusion: Key fungal species associated with soybean seedling diseases occurring in several US production regions were characterized. This work also identified major environment and edaphic factors affecting the abundance and occurrence of these species.
Significance and Impact of the Study: The identification and characterization of the main pathogens associated with seedling diseases across major soybean-producing areas could help manage those pathogens, and devise more effective and sustainable practices to reduce the damage they cause.
(© 2022 The Authors. Journal of Applied Microbiology published by John Wiley & Sons Ltd on behalf of Society for Applied Microbiology.)
Databáze: MEDLINE
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