INVESTIGADORES
SCERVINO Jose martin
congresos y reuniones científicas
Título:
Chemotropism of Gigaspora rosea hyphae by Rhodotorula mucilaginosa exudates
Autor/es:
SCERVINO, J.M; RODRIGUEZ, M.A; MARÍA A. PONCE2; ROSA ERRA-BASSELLS; GARCÍA-ROMERA, I; OCAMPO, J.A.; GODEAS, A.
Lugar:
Granada, España.
Reunión:
Congreso; 5th International Conference on Mycorrhiza.; 2006
Institución organizadora:
EEZ (CSIC)
Resumen:
Chemotropism has been shown to be important in fungal contact with plant root. Exudates from roots and microorganisms play an important role in the attraction of arbuscular mycorrhizal (AM) fungi to the plant. Soil yeasts benefits AÑ fungi mainly through its exudates. Exudates of Rhodotorula mucilaginosa increased the hyphal lengths of Gi. rosea spores. The highest hyphal growth of Gigaspora rosea was observed in presence of Rhodotorula mucilaginosa exudates from 24 to 42 hs of yeast culture. Some of these benefical substance can be attributed to the rhodotorulic acid (RA) produced by the yeast. RA was detected only in the culture of R. mucilaginosa after 24 hs.Higher attraction and grwth of Gi. rosea hyphae in presence of RA or exudates was observed. The hyphal lenght of Gi. rosea spores in presence of exudates from R. mucilaginosa was strongly correlated with the hyphal length o the spores.
