Phytotoxic effect of culture filtrate from Fusarium subglutinans the causal agent of fusariose of pineapple (Ananas comosus (L.) Merr

Citation
Ob. Hidalgo et al., Phytotoxic effect of culture filtrate from Fusarium subglutinans the causal agent of fusariose of pineapple (Ananas comosus (L.) Merr, EUPHYTICA, 104(2), 1998, pp. 73-77
Citations number
23
Categorie Soggetti
Plant Sciences
Journal title
EUPHYTICA
ISSN journal
00142336 → ACNP
Volume
104
Issue
2
Year of publication
1998
Pages
73 - 77
Database
ISI
SICI code
0014-2336(1998)104:2<73:PEOCFF>2.0.ZU;2-R
Abstract
Two pineapple varieties differing in resistance to fusariose were examined for the phytotoxic effect of Fusarium subglutinans culture filtrate. The cu ltivars were Perolera (more resistant to pathovars of Fusarium subglutinans ) and Smooth Cayenne (more susceptible). The phytotoxic effect of culture f iltrate was assessed in tissue culture pineapple plantlets (by electrolyte leakage and placing the culture filtrate on wound leaf segments) and callus (inhibition of growth). Smooth Cayenne proved to be the most sensitive cul tivar in each test, whereas Perolera showed resistance to the culture filtr ate and its callus grew in the presence of high concentrations of culture f iltrate that were completely toxic to Smooth Cayenne. These results show th at plants can display cellular resistance to the culture filtrate.