Composition and dynamics of the fungal population in a typical Phaeozem luvico in Argentina
| Autor: | Gómez, Romina Paula, Aulicino, Mónica Beatriz, Mónaco, Cecilia Inés, Kripelz, Natalia Irene, Cordo, Cristina Alicia, Tejada Moral, Manuel |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Fusarium Soil test Population Soil management practices 01 natural sciences Soil fungal population lcsh:Agriculture Agronomía reproducción y protección de plantas Fusarium oxysporum Phaeozem Ciencias Agrarias education r and K strategists dynamics r and K strategists dynamics r and k strategists education.field_of_study Conventional tillage lcsh:TP368-456 biology lcsh:S Sowing food and beverages 04 agricultural and veterinary sciences biology.organism_classification Agricultural and Biological Sciences (miscellaneous) Dynamics Tillage lcsh:Food processing and manufacture Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries 010606 plant biology & botany Food Science |
| Zdroj: | SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP CIC Digital (CICBA) Comisión de Investigaciones Científicas de la Provincia de Buenos Aires instacron:CICBA Cogent Food & Agriculture, Vol 2, Iss 1 (2016) |
| Popis: | The decomposer soil community maintains the arable soil ecosystem for the nutrient turnover. Here, we studied the dynamics of the soil fungal populations in a typical Phaeozem luvico in Argentina and related it to the management practices. Soil samples (at 0–10 cm depth) were collected from a field cultivated with wheat, at different sampling times: at post-harvest, before sowing, and at tillering. The relative abundance of individuals in the population on Nash Snyder and Oxgall agar media was assessed as colony forming units (CFU). The fungal population was classified by numerical taxonomy at the different sampling times. The highest values of CFU g−1 of soil were found at post-harvest under reduced tillage and differed significantly from those at conventional tillage. The genera Trichoderma, Fusarium, Aspergillus, Penicillium, and Fusarium oxysporum were present in the largest number of samples and discriminated the fungal community between times. This discrimination could be related to alterations in the availability of carbon sources during stubble degradation at post-harvest and before sowing and were of lesser importance at tillering. Centro de Investigaciones en Fitopatología |
| Databáze: | OpenAIRE |
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