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Author Spotlight: Leaf Trait Analysis for Climate and Ecology Reconstruction in Modern and Ancient Plant Communities

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Leaf direction: Lamina joint development and environmental responses.

Jing Xu¹, Jia-Jia Wang¹, Hong-Wei Xue²

¹State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China.

Plant, Cell & Environment

|April 18, 2021

Summary

Rice plant architecture, crucial for photosynthesis, is regulated by leaf angle. This review explores the genetic and environmental factors influencing leaf angle, offering a framework for improving rice yield.

Keywords:

environmental factors leaf angle regulatory mechanism rice (Oryza sativa L.)

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Area of Science:

Plant Biology
Agricultural Science
Genetics

Background:

Plant architecture significantly impacts crop photosynthesis and biomass. Leaf angle is a key trait in rice (Oryza sativa L.) affecting yield, with erect leaves benefiting high-density cultivation.
The lamina joint morphology dictates leaf bending and direction, directly influencing plant architecture.

Purpose of the Study:

To review the cell morphology of lamina joint tissues in rice.
To outline the genetic network regulating lamina joint morphology and rice leaf angle.
To explore environmental influences on rice leaf angle.

Main Methods:

Literature review of studies on rice plant architecture.
Analysis of genetic networks controlling leaf angle.
Examination of environmental factor impacts on leaf orientation.

Main Results:

Lamina joint cell morphology is a key determinant of leaf angle.
A specific genetic network governs lamina joint morphology and thus leaf direction.
Environmental factors can modulate rice leaf angle.

Conclusions:

Understanding the genetic and cellular basis of leaf angle is essential for improving rice plant architecture.
This review provides a framework for genetic improvement of rice leaf orientation for enhanced crop production.