AUX1 acts upstream of PIN2 in regulating root gravitropism
| Autor: | Shuzhen Men, Hui Zhu, Bing Liu, Huabin Liu, Chunxue Zou, Xiaolei Chen |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Mutant Arabidopsis Biophysics Models Biological Plant Roots 01 natural sciences Biochemistry Gravitropism 03 medical and health sciences Auxin Asymmetric distribution Upstream (networking) Molecular Biology chemistry.chemical_classification Indoleacetic Acids Arabidopsis Proteins Chemistry fungi food and beverages Transporter Cell Biology Phenotype Cell biology Root gravitropism 030104 developmental biology Mutation 010606 plant biology & botany |
| Zdroj: | Biochemical and Biophysical Research Communications. 507:433-436 |
| ISSN: | 0006-291X |
| Popis: | AUX1 and PIN2 auxin transporter are required for the asymmetric distribution of auxin for root gravitropic response. However, the relationship between AUX1 and PIN2 in root gravitropism is unclear. Here, we report that aux1-T mutant show stronger defects in root gravitropism than pin2-T, and aux1-T pin2-T double mutants display similar agravitropic phenotype to aux1-T. The gravity-induced asymmetric distribution of auxin responses could not be established in pin2-T, aux1-T and aux1-T pin2-T mutants; whereas aux1-T pin2-T double mutants showed similar auxin responses to aux1-T mutant. These findings support AUX1 plays a role in root gravitropism upstream of PIN2. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect