Promotion of Softening and Ethylene Synthesis in Bartlett Pears by 3-Methylene Oxindole 1
AUTOR(ES)
Frenkel, Chaim
RESUMO
A purified preparation of 3-methylene oxindole (3-MeOx) was applied to Bartlett pears (Lyrus communis) by vacuum infiltration. The infiltrated fruit were kept at room temperature at atmospheric or at one-twentieth of an atmospheric tension. The rate of softening was markedly enhanced by the application of 0.1 and 1 μm 3-MeOx. At 10 μm 3-MeOx the promotive effect of the compound was diminished. All the employed concentrations of 3-MeOx exceeded the effect of applied ethylene. The enhancement of softening in fruit kept under hypobaric conditions suggests that the action of 3-MeOx is a direct one and not an indirect ethylene effect. 3-MeOx also showed stimulation in the onset of ethylene synthesis, shortening the time required to obtain the peak in ethylene synthesis from 5 days by the control to 3 days by 0.1 μm and 2 days by 1 μm of the applied compound. As with softening, 3-MeOx at 10 μm diminished the rate of ethylene synthesis.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=541890Documentos Relacionados
- Auxin Inhibition of Ripening in Bartlett Pears 1
- Purification and Some Properties of Two Polyphenol Oxidases from Bartlett Pears 1
- Internal Ethylene Levels during Ripening and Climacteric in Anjou Pears 1
- EFFECT OF 2,4-DICHLOROPHENOXY ACETIC ACID ON THE RIPENING OF BARTLETT PEARS1
- Cell Wall Metabolism in Ripening Fruit: I. CELL WALL CHANGES IN RIPENING `BARTLETT' PEARS 1
