Comparative studies on the disease prevalence and population dynamics of ginger blotch and brown blotch pathogens of button mushrooms
| Autor: | Jan M. van der Wolf, E.A.H.J. Hendrix, Wietse de Boer, Tanvi Taparia, M.J.A. Hendriks, M.C. Krijger |
|---|---|
| Přispěvatelé: | Microbial Ecology (ME) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Veterinary medicine Pseudomonas salomonii Agaricus Population Population Dynamics Plant Science Biology Ginger 01 natural sciences 03 medical and health sciences Biointeractions and Plant Health Soil inoculum Disease management (agriculture) Pseudomonas Dose response Prevalence Pathogenicity TaqMan-qPCR education Pathogen Bodembiologie Pseudomonas tolaasii Mushroom education.field_of_study Pseudomonas 'gingeri' Inoculation national Outbreak Soil Biology Agaricus bisporus biology.organism_classification Unifarm Proeven PE&RC Casing soil Europe 030104 developmental biology Soil-borne pathogens Plan_S-Compliant_OA Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Plant Disease, 105(3), 542-547. Scientific Societies Plant Disease, 105(3), 542-547 Plant Disease 105 (2021) 3 |
| ISSN: | 0191-2917 |
| Popis: | Bacterial blotch is one of the most economically important diseases of button 'mushroom. Knowledge of mechanisms of disease expression, inoculum thresholds, and disease management is limited to the most well-known pathogen, Pseudomonas tolaasii. Recent outbreaks in Europe have been attributed to ‘P. gingeri’ and P. salomonii for ginger and brown blotch, respectively. Information about their identity, infection dynamics, and pathogenicity is largely lacking. The disease pressure in an experimental mushroom cultivation facility was evaluated for ‘P. gingeri’ and P. salomonii over varying inoculation densities, casing soil types, environmental humidity, and cultivation cycles. The pathogen population structures in the casing soils were simultaneously tracked across the cropping cycle using highly specific and sensitive TaqMan-quantitative PCR assays. ‘P. gingeri’ caused disease outbreaks at lower inoculum thresholds (104 CFU/g) in the soil than P. salomonii (105 CFU/g). Ginger blotch generically declined in later harvest cycles, although brown blotch did not. Casing soils were differentially suppressive to blotch diseases, based on their composition and supplementation. Endemic pathogen populations increased across the cultivation cycle although the inoculated pathogen populations were consistent between the first and second flush. In conclusion, ‘P. gingeri’ and P. salomonii have unique infection and population dynamics that vary over soil types. Their endemic populations are also differently abundant in peat-based casing soils. This knowledge is essential for interpreting diagnostic results from screening mushroom farms and designing localized disease control strategies. |
| Databáze: | OpenAIRE |
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