Plant <i>Aux/IAA</i> Gene Family: Significance in Growth, Development and Stress Responses
Auxin plays a crucial role throughout the entire life cycle of plants. The <i>auxin/indole-3-acetic acid</i> (<i>Aux/IAA</i>) gene family serves as a negative regulator of auxin response and is one of the earliest auxin-responsive gene families. It regulates the expression of...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/15/5/1228 |
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| author | Zelong Zhuang Jianwen Bian Zhenping Ren Wanling Ta Yunling Peng |
| author_facet | Zelong Zhuang Jianwen Bian Zhenping Ren Wanling Ta Yunling Peng |
| author_sort | Zelong Zhuang |
| collection | DOAJ |
| description | Auxin plays a crucial role throughout the entire life cycle of plants. The <i>auxin/indole-3-acetic acid</i> (<i>Aux/IAA</i>) gene family serves as a negative regulator of auxin response and is one of the earliest auxin-responsive gene families. It regulates the expression of auxin-responsive genes by specifically binding to auxin response factors. This review summarizes the protein structural characteristics of the <i>Aux/IAA</i> gene family and its typical and atypical transduction mechanisms in auxin signaling. Additionally, it examines the role of <i>Aux/IAA</i> in regulating plant growth and development, as well as its function in modulating plant resistance to abiotic stress through hormonal signaling pathways. Our findings indicate that the <i>Aux/IAA</i> gene family plays a significant role in plant growth and development, as well as in abiotic stress resistance. However, research on the functional roles of the <i>Aux/IAA</i> gene family in crops such as rice, wheat, and maize remains relatively scarce. Furthermore, we identified key questions and proposed new research directions regarding the <i>Aux/IAA</i> gene family, aiming to provide insights for future research on plant hormone signaling and molecular breeding in crop design. |
| format | Article |
| id | doaj-art-249cc29df6a3439589fc230d6fcacbe6 |
| institution | Kabale University |
| issn | 2073-4395 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj-art-249cc29df6a3439589fc230d6fcacbe62025-08-20T03:47:49ZengMDPI AGAgronomy2073-43952025-05-01155122810.3390/agronomy15051228Plant <i>Aux/IAA</i> Gene Family: Significance in Growth, Development and Stress ResponsesZelong Zhuang0Jianwen Bian1Zhenping Ren2Wanling Ta3Yunling Peng4College of Agronomy, Gansu Agricultural University, Lanzhou 730070, ChinaCollege of Agronomy, Gansu Agricultural University, Lanzhou 730070, ChinaCollege of Agronomy, Gansu Agricultural University, Lanzhou 730070, ChinaCollege of Agronomy, Gansu Agricultural University, Lanzhou 730070, ChinaCollege of Agronomy, Gansu Agricultural University, Lanzhou 730070, ChinaAuxin plays a crucial role throughout the entire life cycle of plants. The <i>auxin/indole-3-acetic acid</i> (<i>Aux/IAA</i>) gene family serves as a negative regulator of auxin response and is one of the earliest auxin-responsive gene families. It regulates the expression of auxin-responsive genes by specifically binding to auxin response factors. This review summarizes the protein structural characteristics of the <i>Aux/IAA</i> gene family and its typical and atypical transduction mechanisms in auxin signaling. Additionally, it examines the role of <i>Aux/IAA</i> in regulating plant growth and development, as well as its function in modulating plant resistance to abiotic stress through hormonal signaling pathways. Our findings indicate that the <i>Aux/IAA</i> gene family plays a significant role in plant growth and development, as well as in abiotic stress resistance. However, research on the functional roles of the <i>Aux/IAA</i> gene family in crops such as rice, wheat, and maize remains relatively scarce. Furthermore, we identified key questions and proposed new research directions regarding the <i>Aux/IAA</i> gene family, aiming to provide insights for future research on plant hormone signaling and molecular breeding in crop design.https://www.mdpi.com/2073-4395/15/5/1228auxin<i>Aux/IAA</i> gene familyfunctionabiotic stress |
| spellingShingle | Zelong Zhuang Jianwen Bian Zhenping Ren Wanling Ta Yunling Peng Plant <i>Aux/IAA</i> Gene Family: Significance in Growth, Development and Stress Responses Agronomy auxin <i>Aux/IAA</i> gene family function abiotic stress |
| title | Plant <i>Aux/IAA</i> Gene Family: Significance in Growth, Development and Stress Responses |
| title_full | Plant <i>Aux/IAA</i> Gene Family: Significance in Growth, Development and Stress Responses |
| title_fullStr | Plant <i>Aux/IAA</i> Gene Family: Significance in Growth, Development and Stress Responses |
| title_full_unstemmed | Plant <i>Aux/IAA</i> Gene Family: Significance in Growth, Development and Stress Responses |
| title_short | Plant <i>Aux/IAA</i> Gene Family: Significance in Growth, Development and Stress Responses |
| title_sort | plant i aux iaa i gene family significance in growth development and stress responses |
| topic | auxin <i>Aux/IAA</i> gene family function abiotic stress |
| url | https://www.mdpi.com/2073-4395/15/5/1228 |
| work_keys_str_mv | AT zelongzhuang plantiauxiaaigenefamilysignificanceingrowthdevelopmentandstressresponses AT jianwenbian plantiauxiaaigenefamilysignificanceingrowthdevelopmentandstressresponses AT zhenpingren plantiauxiaaigenefamilysignificanceingrowthdevelopmentandstressresponses AT wanlingta plantiauxiaaigenefamilysignificanceingrowthdevelopmentandstressresponses AT yunlingpeng plantiauxiaaigenefamilysignificanceingrowthdevelopmentandstressresponses |