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Biochem Biophys Res Commun. 2015 Sep 11;465(1):77-82. doi: 10.1016/j.bbrc.2015.07.132. Epub 2015 Jul 29.

Receptor protein kinase FERONIA controls leaf starch accumulation by interacting with glyceraldehyde-3-phosphate dehydrogenase.

Author information

1
National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha, 410004, Hunan Province, PR China.
2
National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha, 410004, Hunan Province, PR China; Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, PR China.
3
Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, PR China.
4
National Engineering Laboratory for Rice and By-product Deep Processing, Central South University of Forestry and Technology, Changsha, 410004, Hunan Province, PR China. Electronic address: linql0403@126.com.
5
NJU-NJFU Joint Institute for Plant Molecular Biology, School of Life Sciences, Nanjing University, Nanjing, 210093, PR China; Department of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA.
6
Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, PR China. Electronic address: feng_yu@hnu.edu.cn.

Abstract

Cell expansion is coordinated by several cues, but available energy is the major factor determining growth. Receptor protein kinase FERONIA (FER) is a master regulator of cell expansion, but the details of its control mechanisms are not clear. Here we show that FER interacts with cytosolic enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH, GAPC1 and GAPC2), that catalyzes a key reaction in glycolysis, which contributes to energy production. When there is an FER deficiency, there are corresponding decreases in the enzyme activity of GAPDH and increased amounts of starch. More importantly, gapc1/2 mutants mimic fer4 mutants. These data indicate that FER regulated starch content is an evolutionarily conserved function in plants that connects the cell expansion and energy metabolism pathways.

KEYWORDS:

FERONIA; Glyceraldehyde-3-phosphate dehydrogenase; Starch accumulation; Sucrose

PMID:
26232644
DOI:
10.1016/j.bbrc.2015.07.132
[Indexed for MEDLINE]

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