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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 204 - 214 (11page)
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초록· 키워드
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SHI-RELATED SEQUENCE (SRS) genes are plant-specific transcription factors that contain a zinc-binding RING finger motif, which play a critical role in plant growth and development. Among Brassica rapa SRS genes, BrSRS7 and BrLRP1 genes, isolated from shoot apical regions are important regulators of plant growth and development. In order to explore the function of BrSRS genes in horticultural plant growth and development, two constructs containing BrSRS7 and BrLRP1 under the control of a cauliflower mosaic virus 35S promoter were introduced into petunia by Agrobacterium-mediated transformation. The resulting transgenic plants were dwarf and compact plants with reduced plant height and diameter. Additionally, these transgenic plants had upward-curled leaves of narrow width and short internodes. Interestingly, the flower shapes of petunia were different among transgenic plants harboring different kinds of SRS genes. These phenotypes were stably inherited through generations T2 and T3. Semi-quantitative RT-PCR analyses of transgenic plants revealed that BrSRS7 and BrLRP1 regulate expression of gibberellin (GA)- and auxinrelated genes, PtAGL15- and PtIAMT1-related, involved in shoot morphogenesis. These results indicate that the overexpression of BrSRS7 and BrLRP1 genes suppressed the growth and development of petunia by regulating expression of GA- and auxin-related genes. From these data, we deduce that BrSRS7 and BrLRP1 genes play an important role in the regulation of plant growth and development in petunia.
These findings suggest that transformation with the BrSRS genes can be applied to other species as a tool for growth retardation and modification of plant forms.
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등록된 정보가 없습니다.
참고문헌 (33)
참고문헌 신청
Sohlberg JJ / 2006 / STY1 regulates auxin homeostasis and affects apical-basal patterning of the Arabidopsis gynoecium / The Plant J 47:112~123
송천영 / 2009 / 생육 및 개화 특성이 다양한 덩굴 페튜니아 순계 선발 / 화훼연구 17(2):128~136
송천영 / 2009 / 페튜니아 일대 잡종에서 덩굴성 관련형질의 상호관계 및 조합능력 / 화훼연구 17(3):179~184
Sørensen MT / 2006 / Effects of the plant growth regulator, chlormequat, on mammalian fertility / Int J Androl 29:129~133
Staldal V / 2008 / Auxin can act independently of CRC, LUG, SEU, SPT and STY1 in style development but not apical-basal patterning ofthe Arabidopsis gynoecium / New Phytol 180:798~808
송천영 / 2009 / 생육 및 개화 특성이 다양한 덩굴 페튜니아 순계 선발 / 화훼연구 17(2):128~136
송천영 / 2009 / 페튜니아 일대 잡종에서 덩굴성 관련형질의 상호관계 및 조합능력 / 화훼연구 17(3):179~184
Sørensen MT / 2006 / Effects of the plant growth regulator, chlormequat, on mammalian fertility / Int J Androl 29:129~133
Staldal V / 2008 / Auxin can act independently of CRC, LUG, SEU, SPT and STY1 in style development but not apical-basal patterning ofthe Arabidopsis gynoecium / New Phytol 180:798~808
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