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Transcriptional regulation of KCS gene by bZIP29 and MYB70 transcription factors during ABA-stimulated wound suberization of kiwifruit (Actinidia deliciosa).
- Source :
-
BMC plant biology [BMC Plant Biol] 2022 Jan 08; Vol. 22 (1), pp. 23. Date of Electronic Publication: 2022 Jan 08. - Publication Year :
- 2022
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Abstract
- Background: Our previous study has demonstrated that the transcription of AchnKCS involved in suberin biosynthesis was up-regulated by exogenous abscisic acid (ABA) during the wound suberization of kiwifruit, but the regulatory mechanism has not been fully elucidated.<br />Results: Through subcellular localization analysis in this work, AchnbZIP29 and AchnMYB70 transcription factors were observed to be localized in the nucleus. Yeast one-hybrid and dual-luciferase assay proved the transcriptional activation of AchnMYB70 and transcriptional suppression of AchnbZIP29 on AchnKCS promoter. Furthermore, the transcription level of AchnMYB70 was enhanced by ABA during wound suberization of kiwifruit, but AchnbZIP29 transcription was reduced by ABA.<br />Conclusions: Therefore, it was believed that ABA enhanced the transcriptional activation of AchnMYB70 on AchnKCS by increasing AchnMYB70 expression. On the contrary, ABA relieved the inhibitory effect of AchnbZIP29 on transcription of AchnKCS by inhibiting AchnbZIP29 expression. These results gave further insight into the molecular regulatory network of ABA in wound suberization of kiwifruit.<br /> (© 2022. The Author(s).)
- Subjects :
- Actinidia drug effects
Crops, Agricultural drug effects
Crops, Agricultural genetics
Crops, Agricultural growth & development
Fruit drug effects
Fruit genetics
Fruit growth & development
Plant Growth Regulators genetics
Abscisic Acid metabolism
Actinidia genetics
Actinidia growth & development
Gene Expression Regulation, Plant drug effects
Lipid Metabolism genetics
Plant Growth Regulators metabolism
Transcription Factors drug effects
Subjects
Details
- Language :
- English
- ISSN :
- 1471-2229
- Volume :
- 22
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- BMC plant biology
- Publication Type :
- Academic Journal
- Accession number :
- 34998386
- Full Text :
- https://doi.org/10.1186/s12870-021-03407-6