FEBS Letters 2014-10-16

Heterologous expression of AtPAP2 in transgenic potato influences carbon metabolism and tuber development.

Youjun Zhang, Feng Sun, Joerg Fettke, Mark Aurel Schöttler, Lawrence Ramsden, Alisdair R Fernie, Boon Leong Lim

Index: FEBS Lett. 588(20) , 3726-31, (2014)

Full Text: HTML

Abstract

Changes in carbon flow and sink/source activities can affect floral, architectural, and reproductive traits of plants. In potato, overexpression (OE) of the purple acid phosphatase 2 of Arabidopsis (AtPAP2) resulted in earlier flowering, faster growth rate, increased tubers and tuber starch content, and higher photosynthesis rate. There was a significant change in sucrose, glucose and fructose levels in leaves, phloem and sink biomass of the OE lines, consistent with an increased expression of sucrose transporter 1 (StSUT1). Furthermore, the expression levels and enzyme activity of sucrose-phosphate synthase (SPS) were also significantly increased in the OE lines. These findings strongly suggest that higher carbon supply from the source and improved sink strength can improve potato tuber yield. Copyright © 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

Related Compounds

  • sucrose
  • Magnesium choride
  • D-(+)-Glucose
  • L-Glucose
  • Phosphorylase b
  • Native Sweet Pota...

Related Articles:

Salicylic acid signaling controls the maturation and localization of the arabidopsis defense protein ACCELERATED CELL DEATH6.

2014-08-01

[Mol. Plant 7(8) , 1365-83, (2014)]

G-protein-coupled estrogen receptor 1 is anatomically positioned to modulate synaptic plasticity in the mouse hippocampus.

2015-02-11

[J. Neurosci. 35(6) , 2384-97, (2015)]

Itraconazole suppresses the growth of glioblastoma through induction of autophagy: involvement of abnormal cholesterol trafficking.

2014-07-01

[Autophagy 10(7) , 1241-55, (2014)]

SSX2 is a novel DNA-binding protein that antagonizes polycomb group body formation and gene repression.

2015-01-01

[Nucleic Acids Res. 42(18) , 11433-46, (2014)]

Functional screening in Drosophila reveals the conserved role of REEP1 in promoting stress resistance and preventing the formation of Tau aggregates.

2014-12-20

[Hum. Mol. Genet. 23(25) , 6762-72, (2014)]

More Articles...