Transcriptional response of glycinebetaine-related genes to salt stress and light in leaf beet

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概要

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• Beta vulgaris L. accumulates a large amount of glycinebetaine (betaine), a metabolite that is related to salt-tolerance. Production of betaine involves expression of many genes that encode enzymes such as betaine aldehyde dehydrogenase, choline monooxygenase, phosphoethanolamine N-methyltransferase, S-adenosyl-L-methionine synthetase, S-adenosyl-L-homocysteine hydrolase, and methionine synthase. We examined transcriptional regulation of the betaine-related genes in leaf beet (Beta vulgaris L. var cicla, cv. shirogukifudanna). Transcript expression of these betaine-related genes in leaf tissue had the following common features: (1) a similar pattern of transcript induction under salt stress, (2) reduced induction under salt stress in a dark condition, and (3) diurnal rhythms of transcript levels under a photoperiod of 16 h light/8 h darkness. The co-regulation of transcripts may contribute to the effective betaine production without disturbing the biosynthesis of other products in leaf beet.

• 日本植物細胞分子生物学会の論文
• 2006-06-01

著者

• Okada Tomoyuki

  Laboratory Of Tropical Plant Science Faculty Of Agriculture Kobe University

• Azuma Tetsushi

  Graduate School Of Science And Technology Kobe University

• Yasuda Takeshi

  Laboratory Of Tropical Plant Science Faculty Of Agriculture Kobe University

• TABUCHI Tomoki

  Laboratory of Tropical Plant Science, Faculty of Agriculture, Kobe University

• NANMORI Takashi

  Graduate School of Science and Technology, Kobe University

• TAKASHIMA Yuhei

  Laboratory of Tropical Plant Science, Faculty of Agriculture, Kobe University

• Tabuchi Toshihito

  Laboratory Of Tropical Plant Science Faculty Of Agriculture Kobe University

• Nanmori Takashi

  Graduate School Of Science And Technology Kobe University

• Nanmori Takashi

  Graduate School Of Sci. & Tech. Div. Of Mol. Sci. Kobe Univ.

• Azuma Tetsushi

  Graduate School Of Agricultural Science Kobe University

• Yasuda Takeshi

  Graduate School Of Sci. & Tech. Kobe Univ.

• Nanmori Takashi

  Graduate School of Agricultural Science, Kobe University

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