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Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris

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Title Root environment is a key determinant of fungal entomopathogen endophytism following seed treatment in the common bean, Phaseolus vulgaris
 
Creator Parsa, Soroush
Ortiz, Viviana
Gómez Jiménez, María I.
Kramer, Matthew
Vega, Fernando E.
 
Subject beauveria
biological control
endophytes
fungi
metarhizium
phaseolus vulgaris
seed
control biológico
endofitas
fungí
semillas
 
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.
 
Date 2016
2016-09-29T20:14:47Z
2016-09-29T20:14:47Z
 
Type Journal Article
 
Identifier 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.
1048-9644
https://hdl.handle.net/10568/77174
https://doi.org/10.1016/j.biocontrol.2016.09.001
 
Language en
 
Rights Open Access
 
Format 37 p.
 
Publisher Elsevier B.V.
 
Source Biological Control