Effect of Various Inhibitors on Ethylene-enhanced Degreening of Radish (Raphanus sativus L.) Cotyledons.
Bibliographic Information
- Other Title
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- カイワレダイコン(Raphanus sativus L.)子葉のエチレン誘導脱緑に及ぼす阻害剤の影響
- Effect of various inhibitors on ethylen
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Abstract
When the ethylene-enhanced degreening of radish (Raphanus sativus L.) cotyledons held in the dark was investigated, the rates of chlorophyll (Chl) catabolism decreased and the action of ethylene was blocked by inhibitors. Inhibition of the degreening of cotyledons occurred when cotyledons of seedlings were treated with cycloheximide (CHI), actinomycin D (ACD), silver nitrate (AgNO3), silver thiosulfate (STS), and allyl-isothiocyanate (AITC), but not chloramphenicol (CAP), an inhibitor of plastid RNA synthesis. Moreover, a high negative correlation between the degree of greenness of radish cotyledons and Chl-degrading enzyme activity was obtained: Y=-11.85X+64.27, P<0.001 (r2=0.995), where X and Y are Chl a -degrading relative activity and intensity of the green color of the cotyledons, respectively. The correlation indicates that ethylene promotes the degreening process of radish cotyledons through the de novo synthesis of a Chl-degrading enzyme protein. Direct inhibition of AITC on Chl-degrading activity was not observed at the level of concentration that could completely inhibit the ethylene-enhanced degreening of the cotyledons. This finding suggests that AITC is to act as an inhibitor of Chl-degrading enzyme induction in radish cotyledons.
Journal
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- Journal of the Japanese Society for Horticultural Science
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Journal of the Japanese Society for Horticultural Science 67 (6), 849-855, 1998
THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE
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Details 詳細情報について
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- CRID
- 1390001206302021248
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- NII Article ID
- 110004763863
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- NII Book ID
- AN00025257
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- COI
- 1:CAS:528:DyaK1cXnslCns7c%3D
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- ISSN
- 1880358X
- 00137626
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- NDL BIB ID
- 4610673
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed