Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na<sup>+</sup>Uptake in Rice Seedlings
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- SOBAHAN Muhammad Abdus
- Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
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- ARIAS Carlos Raul
- Research Institute for Bioresources, Okayama University
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- OKUMA Eiji
- Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
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- SHIMOISHI Yasuaki
- Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
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- NAKAMURA Yoshimasa
- Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
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- HIRAI Yoshihiko
- Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
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- MORI Izumi C.
- Research Institute for Bioresources, Okayama University
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- MURATA Yoshiyuki
- Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
書誌事項
- タイトル別名
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- Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+ Uptake in Rice Seedlings
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説明
The application of exogenous proline and glycinebetaine (betaine) confers salt tolerance on plants under salt stress. The effects of exogenous proline and betaine on apoplastic flow in rice plants under saline conditions were investigated using trisodium-8-hydroxy-1,3,6-pyrenetrisulphonic acid (PTS), an apoplastic tracer. Rice plants took up more PTS under light conditions than under dark conditions. Salt stress increased PTS uptake and Na+ content of rice leaves, but did not affect K+ content, resulting in a lower K+/Na+ ratio. Addition of proline or betaine to the saline medium suppressed Na+-induced PTS uptake and Na+ accumulation, while the K+ content was slightly increased, which led to a high K+/Na+ ratio under saline conditions. These results suggest that exogenous proline and betaine suppressed Na+-enhanced apoplastic flow to reduce Na+ uptake in rice plants.
収録刊行物
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 73 (9), 2037-2042, 2009
公益社団法人 日本農芸化学会
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詳細情報 詳細情報について
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- CRID
- 1390001206477656960
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- NII論文ID
- 10027545733
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- NII書誌ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL書誌ID
- 10372941
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- PubMed
- 19734659
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDLサーチ
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