지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.7
- 수록면
- 93 - 101 (9page)
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초록· 키워드
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In higher plants, the regulation of anthocyanin synthesis by various factors including light, sugars and hormones is mediated by numerous regulatory factors acting at the transcriptional level. Here, the association between su-crose and the plant hormone, cytokinin, in the presence of light was investigated to elucidate cytokinin signaling cascades leading to the transcriptional activation of anthocyanin biosynthesis genes in Arabidopsis seedlings. We showed that cytokinin enhances anthocyanin content and transcript levels of sugar in-ducible structural gene UDP-glucose:flavonoid 3-O-glucosyl transferase (UF3GT) and regulatory gene PRODUCTION OF ANTHOCYANIN PIG-MENT 1 (PAP1). Genetic analysis showed that cytokinin signaling modulates sugar-induced anthocyanin biosynthesis through a two-component signaling cascade involving the type-B re-sponse regulators ARR1, ARR10 and ARR12 in a redundant manner. Genetic, physiological and molecular biological approaches demonstrated that cytokinin en-hancement is partially dependent on phytochrome and cryptochrome downstream component HY5, but mainly on photosynthetic electron transport. Taken together, we suggest that cytokinin acts down-stream of the photosynthetic electron transport chain in which the plastoquinone redox poise is modulated by sugars in a photoreceptor independent manner.
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참고문헌 (39)
참고문헌 신청
Anantharaman, V. / 2001 / The CHASE domain: a predicted ligand-binding module in plant cytokinin receptors and other eukaryotic and bacterial receptors / Trends Biochem. Sci 26:579~582
Argyros, R. D. / 2008 / Type-B response regulators of Arabidopsis play key roles in cytokinin signalling and plant development / Plant Cell 20:2102~2116
Bellafiore, S. / 2005 / State transitions and light adaptation require chloroplast thylakoid protein kinase STN7 / Nature 433:892~895
Chini, A. / 2007 / The JAZ family of repressors is the missing link in jasmonate signalling / Nature 448:666~671
Das, P. K. / 2010 / Photosynthesis-dependent anthocyanin pigmentation in Arabidopsis / Behav 6:1~4
Argyros, R. D. / 2008 / Type-B response regulators of Arabidopsis play key roles in cytokinin signalling and plant development / Plant Cell 20:2102~2116
Bellafiore, S. / 2005 / State transitions and light adaptation require chloroplast thylakoid protein kinase STN7 / Nature 433:892~895
Chini, A. / 2007 / The JAZ family of repressors is the missing link in jasmonate signalling / Nature 448:666~671
Das, P. K. / 2010 / Photosynthesis-dependent anthocyanin pigmentation in Arabidopsis / Behav 6:1~4
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