지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.3
- 수록면
- 243 - 250 (8page)
- DOI
- 10.14348/molcells.2015.2297
이용수
초록· 키워드
오류제보하기
Patterning of the polar axis during the early leaf developmental stage is established by cell-to-cell communication between the shoot apical meristem (SAM) and the leaf primordia. In a previous study, we showed that the DRL1 gene, which encodes a homolog of the Elongator-associated protein KTI12 of yeast, acts as a positive regulator of adaxial leaf patterning and shoot meristem activity. To determine the evolutionally conserved functions of DRL1, we performed a comparison of the deduced amino acid sequence of DRL1 and its yeast homolog, KTI12, and found that while overall homology was low, well-conserved domains were presented. DRL1 contained two conserved plant-specific domains. Expression of the DRL1 gene in a yeast KTI12-deficient yeast mutant suppressed the growth retardation phenotype, but did not rescue the caffeine sensitivity, indicating that the role of Arabidopsis Elongatorassociated protein is partially conserved with yeast KTI12, but may have changed between yeast and plants in response to caffeine during the course of evolution. In addition, elevated expression of DRL1 gene triggered zymocin sensitivity, while overexpression of KTI12 maintained zymocin resistance, indicating that the function of Arabidopsis DRL1 may not overlap with yeast KTI12 with regards to toxin sensitivity. In this study, expression analysis showed that class-I KNOX genes were downregulated in the shoot apex, and that YAB and KAN were upregulated in leaves of the Arabidopsis drl1- 101 mutant. Our results provide insight into the communication network between the SAM and leaf primordia required for the establishment of leaf polarity by mediating histone acetylation or through other mechanisms.
목차
등록된 정보가 없습니다.
참고문헌 (51)
참고문헌 신청
Butler, A. R. / 1994 / Two Saccharomyces cerevisiae gene which control sensitivity to G1 arrest induced by Kluyveromyces lactis toxin / Mol. Cell. Biol 14:6306~6316
Chen, Z. / 2006 / Mutations of ABO/ELO2, a subunit of holo-Elongator, increase abscisic acid sensitivity and drought tolerance in Arabidopsis thaliana / Mol. Cell. Biol 26:6902~6912
조규형 / 2007 / DRL1 Regulates Adaxial Leaf Patterning and Shoot Apical Meristem Activity in Arabidopsis / Journal of Plant Biology(한국식물학회지) 50(4):467~474
Chitwood, D. H. / 2009 / Pattern formation via small RNA mobility / Genes Dev 23:549~554
Chua, Y. L. / 2005 / The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES 1 / Genes Dev 19:2245~2254
Chen, Z. / 2006 / Mutations of ABO/ELO2, a subunit of holo-Elongator, increase abscisic acid sensitivity and drought tolerance in Arabidopsis thaliana / Mol. Cell. Biol 26:6902~6912
조규형 / 2007 / DRL1 Regulates Adaxial Leaf Patterning and Shoot Apical Meristem Activity in Arabidopsis / Journal of Plant Biology(한국식물학회지) 50(4):467~474
Chitwood, D. H. / 2009 / Pattern formation via small RNA mobility / Genes Dev 23:549~554
Chua, Y. L. / 2005 / The bromodomain protein GTE6 controls leaf development in Arabidopsis by histone acetylation at ASYMMETRIC LEAVES 1 / Genes Dev 19:2245~2254
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