Artículos de revistas
A strawberry disease caused by Acremonium strictum
Fecha
2013-08Registro en:
Racedo, Josefina; Salazar, S. M.; Castagnaro, Atilio Pedro; Diaz Ricci, Juan Carlos; A strawberry disease caused by Acremonium strictum; Springer; European Journal Of Plant Pathology; 137; 4; 8-2013; 649-654
0929-1873
Autor
Racedo, Josefina
Salazar, S. M.
Castagnaro, Atilio Pedro
Diaz Ricci, Juan Carlos
Resumen
We report Acremonium strictum as the causal agent of a new disease in strawberry plants (Fragaria x ananassa Duch.) in the Northwest of Argentina. Both the structure of conidiophores and the sequence spanning the internal transcribed spacers 1 and 2 (ITS1 and ITS2) of the nuclear ribosomal DNA (rDNA) allowed confirming the affiliation of the isolate, corresponding to A. strictum. An analysis of symptoms and lesions caused by the strain of A. strictum in susceptible cultivars showed that the typical symptoms are as follows: in an early stage, small necrotic light-brown spots in leaves and petioles increase in number and size as the disease progresses; in a more advanced stage, dark necrotic areas expand over petioles and leaves causing strangulation of petioles and the plant wilt. Crown rot was not observed even at a very advanced stage of the disease.