Impact of Cellulose-Rich Organic Soil Amendments on Growth Dynamics and Pathogenicity of Rhizoctonia solani
| Autor: | Muhammad Syamsu Rizaludin, M.T. Schilder, Maria P. J. Hundscheid, Joeke Postma, Paulien J. A. Klein Gunnewiek, S.E. Hannula, Anna Clocchiatti, Wietse de Boer |
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| Přispěvatelé: | Microbial Ecology (ME), Terrestrial Ecology (TE) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Microbiology (medical) QH301-705.5 030106 microbiology Damping off Amendment Organic amend-ments engineering.material fungal communities Microbiology complex mixtures Article Damping-off Rhizoctonia solani damping-off Biointeractions and Plant Health 03 medical and health sciences Wood sawdust Virology Saprotrophic fungi Biology (General) Cellulose Bodembiologie biology Soil organic matter Pulp (paper) fungi Sustainable agriculture national food and beverages Soil Biology Pathogenic fungus PE&RC bacterial communities biology.organism_classification cellulose Plant disease Bacterial communities Fungal communities Horticulture 030104 developmental biology organic amendments Seedling engineering Plan_S-Compliant_OA |
| Zdroj: | Microorganisms, 9(6):1285. Multidisciplinary Digital Publishing Institute (MDPI) Microorganisms 9 (2021) 6 Microorganisms, Vol 9, Iss 1285, p 1285 (2021) Microorganisms, 9(6) Microorganisms Volume 9 Issue 6 |
| ISSN: | 2076-2607 |
| Popis: | Cellulose-rich amendments stimulate saprotrophic fungi in arable soils. This may increase competitive and antagonistic interactions with root-infecting pathogenic fungi, resulting in lower disease incidence. However, cellulose-rich amendments may also stimulate pathogenic fungi with saprotrophic abilities, thereby increasing plant disease severity. The current study explores these scenarios, with a focus on the pathogenic fungus Rhizoctonia solani. Saprotrophic growth of R. solani on cellulose-rich materials was tested in vitro. This confirmed paper pulp as a highly suitable substrate for R. solani, whereas its performance on wood sawdusts varied with tree species. In two pot experiments, the effects of amendment of R. solani-infected soil with cellulose-rich materials on performance of beetroot seedlings were tested. All deciduous sawdusts and paper pulp stimulated soil fungal biomass, but only oak, elder and beech sawdusts reduced damping-off of beetroot. Oak sawdust amendment gave a consistent stimulation of saprotrophic Sordariomycetes fungi and of seedling performance, independently of the time between amendment and sowing. In contrast, paper pulp caused a short-term increase in R. solani abundance, coinciding with increased disease severity for beet seedlings sown immediately after amendment. However, damping-off of beetroot was reduced if plants were sown two or four weeks after paper pulp amendment. Cellulolytic bacteria, including Cytophagaceae, responded to paper pulp during the first two weeks and may have counteracted further spread of R. solani. The results showed that fungus-stimulating, cellulose-rich amendments have potential to be used for suppression of R. solani. However, such amendments require a careful consideration of material choice and application strategy. |
| Databáze: | OpenAIRE |
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