Suppression and promotion of growth by ethylene in rice seedlings depends on ambient humidity

We examined the effect of ethylene on the growth of rice seedlings (Oryza sativa L.) at various degrees of humidity. Ethylene significantly suppressed the growth of shoots when applied to seedlings grown under 30% relative humidity (RH), but promoted the growth of shoots when applied to seedlings gr...

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Détails bibliographiques
Publié dans:Journal of plant physiology. - 1979. - 164(2007), 12 vom: 18. Dez., Seite 1683-7
Auteur principal: Azuma, Tetsushi (Auteur)
Autres auteurs: Honda, Takenori, Sadai, Ayako, Sasayama, Daisuke, Itoh, Kazuyuki
Format: Article
Langue:English
Publié: 2007
Accès à la collection:Journal of plant physiology
Sujets:Journal Article Ethylenes Gibberellins ethylene 91GW059KN7 gibberellic acid BU0A7MWB6L
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520 |a We examined the effect of ethylene on the growth of rice seedlings (Oryza sativa L.) at various degrees of humidity. Ethylene significantly suppressed the growth of shoots when applied to seedlings grown under 30% relative humidity (RH), but promoted the growth of shoots when applied to seedlings grown under 100% RH. The application of gibberellic acid (GA(3)) promoted the elongation of shoots in seedlings grown under 30% and 100% RH. Ethylene inhibited the shoot elongation induced by GA(3) at 30% RH, but enhanced the elongation induced by GA(3) at 100% RH. These results indicate that ethylene can either promote or suppress the growth of rice shoots depending on ambient humidity, and that these actions of ethylene may be mediated through modulating the responsiveness of shoots to gibberellin 
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700 1 |a Itoh, Kazuyuki  |e verfasserin  |4 aut 
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