Dynamic Cytology and Transcriptional Regulation of Rice Lamina Joint Development

Plant Physiology
Li-Juan ZhouHong-Wei Xue

Abstract

Rice (Oryza sativa) leaf angle is determined by lamina joint and is an important agricultural trait determining leaf erectness and, hence, the photosynthesis efficiency and grain yield. Genetic studies reveal a complex regulatory network of lamina joint development; however, the morphological changes, cytological transitions, and underlying transcriptional programming remain to be elucidated. A systemic morphological and cytological study reveals a dynamic developmental process and suggests a common but distinct regulation of the lamina joint. Successive and sequential cell division and expansion, cell wall thickening, and programmed cell death at the adaxial or abaxial sides form the cytological basis of the lamina joint, and the increased leaf angle results from the asymmetric cell proliferation and elongation. Analysis of the gene expression profiles at four distinct developmental stages ranging from initiation to senescence showed that genes related to cell division and growth, hormone synthesis and signaling, transcription (transcription factors), and protein phosphorylation (protein kinases) exhibit distinct spatiotemporal patterns during lamina joint development. Phytohormones play crucial roles by promoting cell differe...Continue Reading

Citations

Aug 26, 2018·Journal of Integrative Plant Biology·Li QuHong-Wei Xue
Mar 22, 2020·Journal of Integrative Plant Biology·Xiao-Fan ZhangHong-Wei Xue
Dec 15, 2018·Journal of Integrative Plant Biology·Salar ShaafLaura Rossini
Apr 9, 2020·International Journal of Molecular Sciences·Guizhen LyuShaoshan Li
Jul 28, 2020·International Journal of Molecular Sciences·Xi LiQingjun Xie
Mar 22, 2020·International Journal of Molecular Sciences·Hyoseob SeoNam-Chon Paek
Mar 2, 2021·Frontiers in Plant Science·Qing LiuLangtao Xiao
Apr 19, 2021·Plant, Cell & Environment·Jing XuGuang-Heng Zhang
Aug 4, 2021·Journal of Genetics and Genomics = Yi Chuan Xue Bao·Yu WangWenfeng Qian
Aug 8, 2021·International Journal of Molecular Sciences·Seonghoe JangYue-Ie Hsing
Sep 16, 2021·Plant Signaling & Behavior·Shichao WangGuohua Xu
Oct 19, 2021·Frontiers in Plant Science·Chen-Li ZhuZhi-Guo Zhang

❮ Previous
Next ❯

Related Concepts

Related Feeds

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis