Growth responses of in vitro Fusarium oxysporum f. sp. niveum to external supply of tannic acid.
J Environ Biol
; 31(6): 1017-22, 2010 Nov.
Article
em En
| MEDLINE
| ID: mdl-21506492
ABSTRACT
Allelochemicals released from root exudates or decaying residues of plants play diversified roles in ecological interactions of plant-pathogen. The objective of this work was to evaluate the allelopathic effect of an externally supplied tannic acid on soil-borne in vitro Fusarium oxysporum f. sp. niveum. Results showed that the tannic acid decreased the growth of the fungus up to 9.5% at 800 mg l(-1). Conidial germination was reduced by 52.3% in comparison with the control. However, sporulation and mycotoxin production by the fungus were stimulated. The activity of pectinase and proteinase were initially increased and finally decreased with increase in concentrations of tannic acid. Tannic acid served as an ecological allelochemical, repressing the growth of the pathogen.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Taninos
/
Fusarium
Idioma:
En
Revista:
J Environ Biol
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
China