info:eu-repo/semantics/article
Occurrence of Fusarium species in asymptomatic barley plants grown in field conditions under differential phosphate regimes
Fecha
2018-09Registro en:
Echeverria, Mariela; Moreno, Maria Virginia; Caputo Suarez, Carla Paula; Occurrence of Fusarium species in asymptomatic barley plants grown in field conditions under differential phosphate regimes; Indian Academy of Sciences; Current Science; 115; 5; 9-2018; 939-944
0011-3891
CONICET Digital
CONICET
Autor
Echeverria, Mariela
Moreno, Maria Virginia
Caputo Suarez, Carla Paula
Resumen
Occurrence of genus Fusarium as endophytes in roots of healthy barley plants cultivated in fields under two levels of phosphorous (P) was examined. F. avenaceum, F. graminearum, F. konzum, F. oxysporum, F. sacchari, F. scirpi, F. solani were isolated from asymptomatic surface sterilized root tissues. F. konzum and F. solani were only present in the roots of fertilized plants, whereas F. sacchari was present in unfertilized plants. F. scirpi was isolated in highest frequency and relative density, and was higher under P deficiency suggesting that P availability would determinate the occurrence of this species, suggesting the possibility of their association with stressed plants. This is the first report on the occurrence of Fusarium spp. as endophytes in healthy barley plants. However, it remains to be determined whether Fusarium spp. isolated are nonpathogenic forms and beneficial to barley plants or latent pathogens that could produce disease symptoms in other conditions.