Exudates of dark septate endophyte (DSE) modulate the development of the arbuscular mycorrhizal fungus (AMF) Gigaspora rosea |
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Authors: | J.M. Scervino,A. Gottlieb,V.A. Silvani,M. Pé rgola,L. Ferná ndez,A.M. Godeas |
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Affiliation: | Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, 4P Ciudad Universitaria, 1428 Capital Federal, Buenos Aires, Argentina |
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Abstract: | Exudates of a dark septate endophyte (DSE) identified as Dreschlera sp., a common endophyte isolated by the inner cortical cells of the grass Lolium multiflorum, were put in contact with the arbuscular mycorrhizal fungus (AMF) Gigaspora rosea. These exudates stimulated the hyphal length and the hyphal branching of the AMF. A negative effect on the extramatrical phase of the AMF was detected. This is the first report to show how exudates of DSE can affect the development of AMF. These results show that DSE could be modifying the mycorrhizal status of the plants, modulating a different symbiosis in the rhizosphere. |
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Keywords: | Dark septate endophyte Dreschlera sp. Arbuscular mycorrhizal fungus Gigaspora rosea |
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