期刊
DEVELOPMENTAL CELL
卷 21, 期 6, 页码 1144-1155出版社
CELL PRESS
DOI: 10.1016/j.devcel.2011.10.006
关键词
-
资金
- Academy of Finland
- Tekes
- ESF
- Viikki Graduate School in Molecular Biosciences
- European Molecular Biology Organisation (EMBO) [ALTF 450-2007]
- FORMAS
- Carl Trygger's Foundation for Scientific Research
- Human Frontier Science Program Long-Term Fellowship
- NRF [R33-10002]
- SSAC of Korea [2011]
- NSF [0920327]
- Swedish Centre for Biomimetic Fiber Engineering (Biomime)
- Grants-in-Aid for Scientific Research [23012030] Funding Source: KAKEN
- Div Of Molecular and Cellular Bioscience
- Direct For Biological Sciences [0920327] Funding Source: National Science Foundation
Plant cells are connected through plasmodesmata (PD), membrane-lined channels that allow symplastic movement of molecules between cells. However, little is known about the role of PD-mediated signaling during plant morphogenesis. Here, we describe an Arabidopsis gene, CALS3/GSL12. Gain-of-function mutations in CALS3 result in increased accumulation of callose (beta-1,3-glucan) at the PD, a decrease in PD aperture, defects in root development, and reduced intercellular trafficking. Enhancement of CALS3 expression during phloem development suppressed loss-of-function mutations in the phloem abundant callose synthase, CALS7 indicating that CALS3 is a bona fide callose synthase. CALS3 alleles allowed us to spatially and temporally control the PD aperture between plant tissues. Using this tool, we are able to show that movement of the transcription factor SHORT-ROOT and microRNA1 65 between the stele and the endodermis is PD dependent. Taken together, we conclude that regulated callose biosynthesis at PD is essential for cell signaling.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据