Also an unexpected and unusual plant hormone
. Allegedly explains why when banana
s were transported in vehicles with gas lamps (which gave off the gas) they ripened quicker. Since it is gaseous, fruits that use this molecule to ripen affect each other in a positive feedback
sort of way. Produced by the fruit from a strange cyclic intermediate : 1-aminocyclopropane-1-carboxylic acid, which is made using SAM(S-adenosyl methionine
). This decomposes to ethylene, catalyze
d by an oxidase.
The Ethylene FAQ (really, frequently asked questions about ethylene?) says:
" Ethylene can promote ripening in
tomatoes, bananas, citrus, pineapples, dates, persimmons, pears, apples, melons,
mangos, avocados, papayas and jujubes"
Other C2H4 questions may be answered at http://store.yahoo.com/catalyticgenerators/index.html.