SciELO - Scientific Electronic Library Online

 
vol.42 número4Xylanase production by Aspergillus awamori under solid state fermentation conditions on tomato pomaceCellulolytic potential of a novel strain of Paenibacillus sp. isolated from the armored catfish Parotocinclus maculicauda gut índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Brazilian Journal of Microbiology

versión impresa ISSN 1517-8382

Resumen

MUTHUKUMAR, A.; ESWARAN, A.  y  SANJEEVKUMAS, K.. Exploitation of trichoderma species on the growth of Pythium Aphanidermatum in Chilli. Braz. J. Microbiol. [online]. 2011, vol.42, n.4, pp. 1598-1607. ISSN 1517-8382.  http://dx.doi.org/10.1590/S1517-83822011000400047.

Damping-off of chilli caused by Pythium aphanidermatum is a major nursery disease in vegetables. In vitro experiments evaluated the effect of eight isolates of Trichoderma species (from chilli rhizosphere) were tested against P. aphanidermatum. All the Trichoderma species had varied antagonistic effects against the pathogen. Among them, TVC3 recorded maximum growth inhibition of P. aphanidermatum and produced more amounts of volatile and non-volatile metabolites. The culture filtrate of the Trichoderma isolate TVC3 recorded complete inhibition on the mycelial growth of pathogen at 15% concentration. Moreover, chilli seeds treated with culture filtrate of the isolate TVC3 recorded maximum germination percentage, shoot length, root length and vigour index of chilli. The study identified the Trichoderma isolate (TVC3) performed well in inhibiting the mycelial growth of pathogen as well as increased the plant growth in chilli.

Palabras llave : Capsicum annuum; Trichoderma species; growth inhibition; secondary metabolites; Plant growth promotion.

        · texto en Inglés     · pdf en Inglés