Advances in primary auxin-responsive Aux/IAA gene family: a review

SIMA Xiaojiao; ZHENG Bingsong

doi:10.11833/j.issn.2095-0756.2015.02.021

Volume 32 Issue 2

Mar. 2015

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SIMA Xiaojiao, ZHENG Bingsong. Advances in primary auxin-responsive Aux/IAA gene family: a review[J]. Journal of Zhejiang A&F University, 2015, 32(2): 313-318. DOI: 10.11833/j.issn.2095-0756.2015.02.021

Citation:

SIMA Xiaojiao, ZHENG Bingsong. Advances in primary auxin-responsive Aux/IAA gene family: a review[J]. Journal of Zhejiang A&F University, 2015, 32(2): 313-318. DOI: 10.11833/j.issn.2095-0756.2015.02.021

Advances in primary auxin-responsive Aux/IAA gene family: a review

DOI: 10.11833/j.issn.2095-0756.2015.02.021

SIMA Xiaojiao,
ZHENG Bingsong^,

1.
The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin’an 311300, Zhejiang, China

Received Date: 2014-09-01
Rev Recd Date: 2014-10-13
Publish Date: 2015-04-20

Abstract

Members of Aux/IAA gene family are responsive to primary auxin induction. ARF is a kind of regulating auxin response gene expression to regulate auxin primary function of gene transcription. By combining its response elements with the specificity of ARF, Aux/IAA is a transcription function to regulate primary auxin-responsive gene. This paper reviewed the recent advances in the structural characteristics, regulation mechanism and biological functions of Aux/IAAs. Aux/IAAs consisted of four conserved domains: Domains Ⅰ, Ⅱ, Ⅲ and Ⅳ. Domain Ⅰ was responsible for the protein inhibition of Aux/IAAs. With a leucine motif, Domain Ⅱ was capable of rapid protein stability. Domains Ⅲ and Ⅳ were responsible for protein dimerization （homo- and hetero-dimerization）. Aux/IAAs promoted the transcription of early genes by combining auxin response factors, and they regulated the expression of downstream genes in the process of auxin signal transduction. Different Aux/IAAs were expressed in different tissues and organisms. Also, the study of Aux/IAA mutants indicated that different Aux/IAAs had different functions due to differences in temporal and spatial expression and affinities with promoters of Aux/IAA genes to the ARF gene. Plant hormones and environmental factors also had important roles in regulating Aux/IAAs. ［Ch, 43 ref.］
- biochemistry molecular biology,
- primary auxin-responsive gene （Aux/IAA）,
- gene function,
- regulation mechanism,
- review

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Advances in primary auxin-responsive Aux/IAA gene family: a review

1. The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin’an 311300, Zhejiang, China

Received Date: 2014-09-01

Rev Recd Date: 2014-10-13

Publish Date: 2015-04-20

Key words:

biochemistry molecular biology /
primary auxin-responsive gene （Aux/IAA） /
gene function /
regulation mechanism /
review

Abstract: Members of Aux/IAA gene family are responsive to primary auxin induction. ARF is a kind of regulating auxin response gene expression to regulate auxin primary function of gene transcription. By combining its response elements with the specificity of ARF, Aux/IAA is a transcription function to regulate primary auxin-responsive gene. This paper reviewed the recent advances in the structural characteristics, regulation mechanism and biological functions of Aux/IAAs. Aux/IAAs consisted of four conserved domains: Domains Ⅰ, Ⅱ, Ⅲ and Ⅳ. Domain Ⅰ was responsible for the protein inhibition of Aux/IAAs. With a leucine motif, Domain Ⅱ was capable of rapid protein stability. Domains Ⅲ and Ⅳ were responsible for protein dimerization （homo- and hetero-dimerization）. Aux/IAAs promoted the transcription of early genes by combining auxin response factors, and they regulated the expression of downstream genes in the process of auxin signal transduction. Different Aux/IAAs were expressed in different tissues and organisms. Also, the study of Aux/IAA mutants indicated that different Aux/IAAs had different functions due to differences in temporal and spatial expression and affinities with promoters of Aux/IAA genes to the ARF gene. Plant hormones and environmental factors also had important roles in regulating Aux/IAAs. ［Ch, 43 ref.］

Advances in primary auxin-responsive Aux/IAA gene family: a review

DOI: 10.11833/j.issn.2095-0756.2015.02.021

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

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