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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 180 - 188 (9page)
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초록· 키워드
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Auxin plays a crucial regulatory role in plant growth and development processes. Three major classes of auxin-responsive transcription factors controlled by the Auxin/indole-3-acetic acid (Aux/IAA), Gretchen Hagen 3 (GH3), and small auxin up RNA (SAUR) genes regulate auxin signaling. Aux/IAA, in particular, encodes short-lived nuclear proteins that accumulate rapidly in response to auxin signaling. In this study, we isolated a PagAux/IAA1 gene from poplar (Populus alba × P. glandulosa) and investigated its expression characteristics. The PagAux/IAA1 cDNA codes for putative 200 amino acids polypeptide containing four conserved domains and two nuclear localization signals (NLSs). Utilizing Southern blot analysis, we confirmed that a single copy of the PagAux/IAA1 gene was present in the poplar genome. The expression of this gene is specific to leaves and flowers of the poplar. PagAux/IAA1 expressed in the early exponential growth phase of cell-cultured in suspension. PagAux/IAA1 expression level reduced in drought and salt stress conditions, and the presence of plant hormones such as abscisic acid. However, expression enhanced in cold stress, cambial cell division, and presence of plant hormones such as gibberellic acid and jasmonic acid. Thus, these results suggest that PagAux/IAA1 participates in cold stress response as well as developmental processes in the poplar.
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참고문헌 (61)
참고문헌 신청
Abel S / 1994 / Early auxin-induced genes encode short-lived nuclear proteins / Proc Natl Acad Sci USA 91:326~330
Abel S / 1995 / The PS-IAA4/5-like family of early auxin-inducible mRNAs in Arabidopsis thaliana / J Mol Biol 251(4):533~549
Ainley WM / 1988 / Sequence and characterization of two auxin-regulated genes from soybean / J Biol Chem 263(22):10658~10666
Eun-Kyung Bae / 2009 / Differential expression of a poplar SK2-type dehydrin gene in response to various stresses / BMB reports 42(7):439~443
Bannai H / 2002 / Extensive feature detection of N-terminal protein sorting signals / Bioinformatics 18(2):298~305
Abel S / 1995 / The PS-IAA4/5-like family of early auxin-inducible mRNAs in Arabidopsis thaliana / J Mol Biol 251(4):533~549
Ainley WM / 1988 / Sequence and characterization of two auxin-regulated genes from soybean / J Biol Chem 263(22):10658~10666
Eun-Kyung Bae / 2009 / Differential expression of a poplar SK2-type dehydrin gene in response to various stresses / BMB reports 42(7):439~443
Bannai H / 2002 / Extensive feature detection of N-terminal protein sorting signals / Bioinformatics 18(2):298~305
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