Relationship between Ethylene Evolution and Sucrose Content in Excised Leaf Blades of Rice

We examined the relationship between ethylene evolution and carbohydrate content in leaf blades excised from rice (Oryza sativa L. cv. Nipponbare) seedlings at the four-leaf stage. The rate of ethylene evolution from the excised leaf blades sampled at various times exhibited diurnal fluctuation ; it...

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Main Authors: Hidekazu Kobayashi, Hitoshi Saka
Format: Article
Language:English
Published: Taylor & Francis Group 2000-01-01
Series:Plant Production Science
Subjects:
Online Access:http://dx.doi.org/10.1626/pps.3.398
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author Hidekazu Kobayashi
Hitoshi Saka
author_facet Hidekazu Kobayashi
Hitoshi Saka
author_sort Hidekazu Kobayashi
collection DOAJ
description We examined the relationship between ethylene evolution and carbohydrate content in leaf blades excised from rice (Oryza sativa L. cv. Nipponbare) seedlings at the four-leaf stage. The rate of ethylene evolution from the excised leaf blades sampled at various times exhibited diurnal fluctuation ; it was the lowest at 5 : 00, increased to the maximum at 13 : 00, then decreased. The sucrose content in leaf blades showed the same fluctuation as the rate of ethylene evolution. Application of sucrose stimulated the evolution of ethylene and increased the contents of glucose, fructose and sucrose in the leaf blades. After the application of glucose or fructose, both the rate of ethylene evolution and sugar content increased, but glucose and fructose increased much less than sucrose. In these experiments, sucrose content was closely correlated with the rate of ethylene evolution in rice leaf blades. From these data we concluded that sucrose content regulated the rate of ethylene evolution from leaf blades in young rice seedlings.
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spelling doaj.art-788f0aa24c8b4a64b9731463897f9ecc2022-12-21T23:34:15ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082000-01-013439840310.1626/pps.3.39811644447Relationship between Ethylene Evolution and Sucrose Content in Excised Leaf Blades of RiceHidekazu Kobayashi0Hitoshi Saka1The University of TokyoThe University of TokyoWe examined the relationship between ethylene evolution and carbohydrate content in leaf blades excised from rice (Oryza sativa L. cv. Nipponbare) seedlings at the four-leaf stage. The rate of ethylene evolution from the excised leaf blades sampled at various times exhibited diurnal fluctuation ; it was the lowest at 5 : 00, increased to the maximum at 13 : 00, then decreased. The sucrose content in leaf blades showed the same fluctuation as the rate of ethylene evolution. Application of sucrose stimulated the evolution of ethylene and increased the contents of glucose, fructose and sucrose in the leaf blades. After the application of glucose or fructose, both the rate of ethylene evolution and sugar content increased, but glucose and fructose increased much less than sucrose. In these experiments, sucrose content was closely correlated with the rate of ethylene evolution in rice leaf blades. From these data we concluded that sucrose content regulated the rate of ethylene evolution from leaf blades in young rice seedlings.http://dx.doi.org/10.1626/pps.3.398Diurnal fluctuationEthylene evolutionLeaf bladeRiceSucrose content
spellingShingle Hidekazu Kobayashi
Hitoshi Saka
Relationship between Ethylene Evolution and Sucrose Content in Excised Leaf Blades of Rice
Plant Production Science
Diurnal fluctuation
Ethylene evolution
Leaf blade
Rice
Sucrose content
title Relationship between Ethylene Evolution and Sucrose Content in Excised Leaf Blades of Rice
title_full Relationship between Ethylene Evolution and Sucrose Content in Excised Leaf Blades of Rice
title_fullStr Relationship between Ethylene Evolution and Sucrose Content in Excised Leaf Blades of Rice
title_full_unstemmed Relationship between Ethylene Evolution and Sucrose Content in Excised Leaf Blades of Rice
title_short Relationship between Ethylene Evolution and Sucrose Content in Excised Leaf Blades of Rice
title_sort relationship between ethylene evolution and sucrose content in excised leaf blades of rice
topic Diurnal fluctuation
Ethylene evolution
Leaf blade
Rice
Sucrose content
url http://dx.doi.org/10.1626/pps.3.398
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AT hitoshisaka relationshipbetweenethyleneevolutionandsucrosecontentinexcisedleafbladesofrice