Tryptophan Boost Caused by Senescence Occurred Independently of Cytoplasmic Glutamine Synthetase

Sangkyu PARK; Kyungjin LEE; Kiyoon KANG; Young Soon KIM; Sungbeom LEE; Soon-Jong KWEON; Kyoungwhan BACK

doi:10.1271/bbb.100473

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引用する場合も本公開記事を引用してください。

Tryptophan Boost Caused by Senescence Occurred Independently of Cytoplasmic Glutamine Synthetase

Sangkyu PARK, Kyungjin LEE, Kiyoon KANG, Young Soon KIM, Sungbeom LEE, Soon-Jong KWEON, Kyoungwhan BACK

著者情報

キーワード: glutamine synthetase, RNA interference, transgenic rice, tryptophan biosynthesis

ジャーナルフリー早期公開

論文ID: 100473

DOI https://doi.org/10.1271/bbb.100473

この記事には本公開記事があります。

The final version of this article is now available: Vol. 74 (2010) , No. 11 p.2352

詳細

抄録

We examined to determine whether senescence-induced tryptophan levels are positively associated with levels of glutamine synthetase (GS1), the initial enzyme in tryptophan biosynthesis. We generated transgenic rice plants in which GS1 was suppressed by RNA interference technology. The transgenic line showed a dramatic decrease in GS1 protein and glutamine content, but the levels of tryptophan and mRNA of the key tryptophan biosynthetic genes upon senescence were comparable to those of the wild type.

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