Ethylene production by Botrytis cinerea

Ethylene was produced when isolates of the postharvest pathogen Botrytis cinerea Pers.: Fr., derived from fruit of strawberry, blueberry and kiwifruit and leaves of grape and camellia, were grown on a modified Pratt's medium containing 35 mM methionine in shaken or static cultures at 22 °C in t...

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Bibliographic Details
Published in:Postharvest biology and technology 1997-06, Vol.11 (2), p.85-91
Main Authors: Qadir, Altaf, Hewett, Errol W., Long, Peter G.
Format: Article
Language:English
Subjects:
ACTINIDIE
ARANDANO
BLUEBERRIES
BOTRYTIS CINEREA
CAMELLIA
CONTROL DE PLAGAS (POSTCOSECHA)
Ethylene biosynthesis
Ethylene precursors
ETHYLENE PRODUCTION
FRAISE
FRESA
GRAPES
KIWI (FRUTA)
KIWIFRUITS
LUTTE APRES RECOLTE
Methionine
MYRTILLE
POSTHARVEST CONTROL
Postharvest decay
PRODUCCION DE ETILENO
PRODUCTION D'ETHYLENE
RAISIN
STRAWBERRIES
UVA
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Summary:Ethylene was produced when isolates of the postharvest pathogen Botrytis cinerea Pers.: Fr., derived from fruit of strawberry, blueberry and kiwifruit and leaves of grape and camellia, were grown on a modified Pratt's medium containing 35 mM methionine in shaken or static cultures at 22 °C in the dark. Cultures grown on basal media containing glutamate or α-ketoglutarate produced no more ethylene than controls. Optimum growth occurred at pH 3.5 and 4.5 for shake and static cultures, respectively. When B. Cinerea was grown in a methionine-amended basal medium, maximum production of ethylene occurred after 3–4 days of incubation. However, maximum ethylene production per unit dry wt of mycelium (780 μl/g/h) occurred within 48 h of inoculation, after which it declined. That high ethylene production occurs with such small amounts of mycelia suggests a possible role for fungal produced ethylene in B. cinerea pathogenesis of sensitive fruit such as kiwifruit.
ISSN:0925-5214
1873-2356
DOI:10.1016/S0925-5214(97)00016-1