Authors
Erica H Lawrence, Clint J Springer, Brent R Helliker, R Scott Poethig
Publication date
2021/8
Journal
New Phytologist
Volume
231
Issue
3
Pages
1008-1022
Description
- Plant morphology and physiology change with growth and development. Some of these changes are due to change in plant size and some are the result of genetically programmed developmental transitions. In this study we investigate the role of the developmental transition, vegetative phase change (VPC), on morphological and photosynthetic changes.
- We used overexpression of microRNA156, the master regulator of VPC, to modulate the timing of VPC in Populus tremula × alba, Zea mays, and Arabidopsis thaliana to determine its role in trait variation independent of changes in size and overall age.
- Here, we find that juvenile and adult leaves in all three species photosynthesize at different rates and that these differences are due to phase‐dependent changes in specific leaf area (SLA) and leaf N but not photosynthetic biochemistry. Further, we found juvenile leaves with high SLA were associated with better …
Scholar articles
EH Lawrence, CJ Springer, BR Helliker, RS Poethig - New Phytologist, 2021