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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.10
- 수록면
- 923 - 932 (10page)
- DOI
- 10.14348/molcells.2018.0092
이용수
초록· 키워드
오류제보하기
Ethylene regulates numerous aspects of plant growth and development. Multiple external and internal factors coordinate ethylene production in plant tissues. Transcriptional and post-translational regulations of ACC synthases (ACSs), which are key enzymes mediating a rate-limiting step in ethylene biosynthesis have been well characterized. However, the regulation and physiological roles of ACC oxidases (ACOs) that catalyze the final step of ethylene biosynthesis are largely unknown in Arabidopsis. Here, we show that Arabidopsis ACO1 exhibits a tissue-specific expression pattern that is regulated by multiple signals, and plays roles in the lateral root development in Arabidopsis. Histochemical analysis of the ACO1 promoter indicated that ACO1 expression was largely modulated by light and plant hormones in a tissuespecific manner. We demonstrated that point mutations in two E-box motifs on the ACO1 promoter reduce the lightregulated expression patterns of ACO1. The aco1-1 mutant showed reduced ethylene production in root tips compared to wild-type. In addition, aco1-1 displayed altered lateral root formation. Our results suggest that Arabidopsis ACO1 integrates various signals into the ethylene biosynthesis that is required for ACO1’s intrinsic roles in root physiology.
목차
등록된 정보가 없습니다.
참고문헌 (49)
참고문헌 신청
Aloni, R. / 2003 / Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis / Planta 216:841~853
Alonso, J.M. / 2001 / The ethylene pathway: A paradigm for plant hormone signaling and interaction / Sci STKE 2001:RE1
Barry, C.S. / 1996 / Differential expression of the 1-aminocyclopropane-1-carboxylate oxidase gene family of tomato / Plant J. 9:525~535
Barry, C.S. / 2000 / The regulation of 1-aminocyclopropane-1-carboxylic acid synthase gene expression during the transition from system-1 to system-2 ethylene synthesis in tomato / Plant Physiol. 123:979~986
Beaudoin, N. / 2000 / Interactions between abscisic acid and ethylene signaling cascades / Plant Cell 12:1103~1115
Alonso, J.M. / 2001 / The ethylene pathway: A paradigm for plant hormone signaling and interaction / Sci STKE 2001:RE1
Barry, C.S. / 1996 / Differential expression of the 1-aminocyclopropane-1-carboxylate oxidase gene family of tomato / Plant J. 9:525~535
Barry, C.S. / 2000 / The regulation of 1-aminocyclopropane-1-carboxylic acid synthase gene expression during the transition from system-1 to system-2 ethylene synthesis in tomato / Plant Physiol. 123:979~986
Beaudoin, N. / 2000 / Interactions between abscisic acid and ethylene signaling cascades / Plant Cell 12:1103~1115
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