Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris
The common bean is the most important food legume in the world. We examined the potential of the fungal entomopathogens Beauveria bassiana and Metarhizium anisopliae applied as seed treatments for their endophytic establishment in the common bean. Endophytic colonization in sterile sand:peat average...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Elsevier
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/77174 |
| _version_ | 1855534574932590592 |
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| author | Parsa, Soroush Ortíz, Viviana Gómez Jiménez, María I. Kramer, Matthew Vega, Fernando E. |
| author_browse | Gómez Jiménez, María I. Kramer, Matthew Ortíz, Viviana Parsa, Soroush Vega, Fernando E. |
| author_facet | Parsa, Soroush Ortíz, Viviana Gómez Jiménez, María I. Kramer, Matthew Vega, Fernando E. |
| author_sort | Parsa, Soroush |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The common bean is the most important food legume in the world. We examined the potential of the fungal entomopathogens Beauveria bassiana and Metarhizium anisopliae applied as seed treatments for their endophytic establishment in the common bean. Endophytic colonization in sterile sand:peat averaged ca. 40% higher for fungus treatments and ca. six times higher for volunteer fungi (other fungal endophytes naturally occurring in our samples), relative to sterile vermiculite. Colonization by B. bassiana and M. anisopliae was least variable in sterile vermiculite and most variable in sterile soil:sand:peat. The impact of soil sterilization on endophytic colonization was assessed in a separate experiment using six different field-collected soils. Soil sterilization was the variable with the largest impact on colonization (70.8% of its total variance), while the fungal isolate used to inoculate seeds explained 8.4% of the variance. Under natural microbial soil conditions experienced by common bean farmers, seed inoculations with B. bassiana and M. anisopliae are unlikely to yield predictable levels of endophytic colonization. |
| format | Journal Article |
| id | CGSpace77174 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace771742025-03-13T09:44:55Z Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris Parsa, Soroush Ortíz, Viviana Gómez Jiménez, María I. Kramer, Matthew Vega, Fernando E. beauveria biological control endophytes fungi metarhizium phaseolus vulgaris seed control biológico endofitas fungí semillas The common bean is the most important food legume in the world. We examined the potential of the fungal entomopathogens Beauveria bassiana and Metarhizium anisopliae applied as seed treatments for their endophytic establishment in the common bean. Endophytic colonization in sterile sand:peat averaged ca. 40% higher for fungus treatments and ca. six times higher for volunteer fungi (other fungal endophytes naturally occurring in our samples), relative to sterile vermiculite. Colonization by B. bassiana and M. anisopliae was least variable in sterile vermiculite and most variable in sterile soil:sand:peat. The impact of soil sterilization on endophytic colonization was assessed in a separate experiment using six different field-collected soils. Soil sterilization was the variable with the largest impact on colonization (70.8% of its total variance), while the fungal isolate used to inoculate seeds explained 8.4% of the variance. Under natural microbial soil conditions experienced by common bean farmers, seed inoculations with B. bassiana and M. anisopliae are unlikely to yield predictable levels of endophytic colonization. 2018-01 2016-09-29T20:14:47Z 2016-09-29T20:14:47Z Journal Article https://hdl.handle.net/10568/77174 en Open Access Elsevier Parsa, Soroush; Ortiz, Viviana; Gómez-Jiménez, María I.; Kramer, Matthew; Vega, Fernando E.. 2016. Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris . Biological Control. 37 p. |
| spellingShingle | beauveria biological control endophytes fungi metarhizium phaseolus vulgaris seed control biológico endofitas fungí semillas Parsa, Soroush Ortíz, Viviana Gómez Jiménez, María I. Kramer, Matthew Vega, Fernando E. Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris |
| title | Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris |
| title_full | Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris |
| title_fullStr | Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris |
| title_full_unstemmed | Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris |
| title_short | Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris |
| title_sort | root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean phaseolus vulgaris |
| topic | beauveria biological control endophytes fungi metarhizium phaseolus vulgaris seed control biológico endofitas fungí semillas |
| url | https://hdl.handle.net/10568/77174 |
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