Xiufang Dai
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Xiufang Dai has a total of 8 co-authors. Here are the top co-authors by number of shared publications:
- Chenguang Zhou
State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University , Harbin 150040
1 shared publication - Hao Dong
State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
1 shared publication - Jiaojiao Lin
State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
1 shared publication - Jiyuan Li
State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
1 shared publication - Meng Li
State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
1 shared publication - Shuang Li
State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University , Harbin 150040
1 shared publication
Latest Publications
- Open Access
- 24 February 2023
- Published by MDPI AG in International Journal of Molecular Sciences
- Vol. 24 (5) , 4458
PtrVCS2 Regulates Drought Resistance by Changing Vessel Morphology and Stomatal Closure in Populus trichocarpa
Drought has severe effects on plant growth, forest productivity, and survival throughout the world. Understanding the molecular regulation of drought resistance in forest trees can enable effective strategic engineering of novel drought-resistant genotypes of tree species. In this study, we identified a gene, PtrVCS2, encoding a zinc finger (ZF) protein of the ZF-homeodomain transcription factor in Populus trichocarpa (Black Cottonwood) Torr. & A. Gray. ex Hook. Overexpression of PtrVCS2 (OE-PtrVCS2) in P. trichocarpa resulted in reduced growth, a higher proportion of smaller stem vessels, and strong drought-resistance phenotypes. Stomatal movement experiments revealed that the OE-PtrVCS2 transgenics showed lower stomata apertures than wild-type plants under drought conditions. RNA-seq analysis of the OE-PtrVCS2 transgenics showed that PtrVCS2 regulates the expression of multiple genes involved in regulation of stomatal opening and closing, particularly the PtrSULTR3;1-1 gene, and several genes related to cell wall biosynthesis, such as PtrFLA11-12 and PtrPR3-3. Moreover, we found that the water use efficiency of the OE-PtrVCS2 transgenic plants was consistently higher than that of wild type plants when subjected to chronic drought stress. Taken together, our results suggest that PtrVCS2 plays a positive role in improving drought adaptability and resistance in P. trichocarpa.
- 24 February 2023
- Published by MDPI AG in International Journal of Molecular Sciences
- Vol. 24 (5) , 4458
Open AccessPtrVCS2 Regulates Drought Resistance by Changing Vessel Morphology and Stomatal Closure in Populus trichocarpa
Drought has severe effects on plant growth, forest productivity, and survival throughout the world. Understanding the molecular regulation of drought resistance in forest trees can enable effective strategic engineering of novel drought-resistant genotypes of tree species. In this study, we identified a gene, PtrVCS2, encoding a zinc finger (ZF) protein of the ZF-homeodomain transcription factor in Populus trichocarpa (Black Cottonwood) Torr. & A. Gray. ex Hook. Overexpression of PtrVCS2 (OE-PtrVCS2) in P. trichocarpa resulted in reduced growth, a higher proportion of smaller stem vessels, and strong drought-resistance phenotypes. Stomatal movement experiments revealed that the OE-PtrVCS2 transgenics showed lower stomata apertures than wild-type plants under drought conditions. RNA-seq analysis of the OE-PtrVCS2 transgenics showed that PtrVCS2 regulates the expression of multiple genes involved in regulation of stomatal opening and closing, particularly the PtrSULTR3;1-1 gene, and several genes related to cell wall biosynthesis, such as PtrFLA11-12 and PtrPR3-3. Moreover, we found that the water use efficiency of the OE-PtrVCS2 transgenic plants was consistently higher than that of wild type plants when subjected to chronic drought stress. Taken together, our results suggest that PtrVCS2 plays a positive role in improving drought adaptability and resistance in P. trichocarpa.