Greenhouses represent an important evolutionary niche for Alternaria alternata

is a ubiquitous soil-borne fungus capable of causing diseases in a variety of plants and occasionally in humans. While populations of from infected plants have received significant attention, relatively little is known about its soil populations, including its population genetic structure and antifu...

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Published in:Microbiology spectrum 2024-06, Vol.12 (6), p.e0039024
Main Authors: Yang, Guangzhu, Cui, Sai, Huang, Wenjing, Wang, Shutong, Ma, Jun, Zhang, Ying, Xu, Jianping
Format: Article
Language:English
Subjects:
Alternaria
Alternaria - genetics
Antifungal Agents - pharmacology
China
cyp51
Drug Resistance, Fungal - genetics
fungal pathogen
fungicide tolerance
Genetic Variation
Microbial Ecology
Phylogeny
Plant Diseases - microbiology
population genetics
Research Article
Soil Microbiology
triazoles
Triazoles - pharmacology
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Summary:is a ubiquitous soil-borne fungus capable of causing diseases in a variety of plants and occasionally in humans. While populations of from infected plants have received significant attention, relatively little is known about its soil populations, including its population genetic structure and antifungal susceptibilities. In addition, over the last two decades, greenhouses have become increasingly important for food and ornamental plant production throughout the world, but how greenhouses might impact microbial pathogens such as populations remains largely unknown. Different from open crop fields, greenhouses are often more intensively cultivated, with each greenhouse being a relatively small and isolated space where temperature and humidity are higher than surrounding environments. Previous studies have shown that greenhouse populations of two common molds, and within a small community in southwestern China were variably differentiated. However, the relative contribution of physical separation among local greenhouses to the large-scale population structure remains unknown. Here, we isolated strains of from seven greenhouses in Shijiazhuang, northeast China. Their genetic diversity and triazole susceptibilities were analyzed and compared with each other and with 242 isolates from nine greenhouses in Kunming, southwest China. Results showed that the isolation of greenhouses located
ISSN:2165-0497
2165-0497
DOI:10.1128/spectrum.00390-24