TY  - JOUR
A1  - Zhang, Youjun
A1  - Sun, Feng
A1  - Fettke, Jörg
A1  - Schoettler, Mark Aurel
A1  - Ramsden, Lawrence
A1  - Fernie, Alisdair R.
A1  - Lim, Boon Leong
T1  - Heterologous expression of AtPAP2 in transgenic potato influences carbon metabolism and tuber development
JF  - FEBS letters : the journal for rapid publication of short reports in molecular biosciences
N2  - 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. (C) 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
KW  - Potato
KW  - AtPAP2
KW  - Photosynthesis
KW  - Tuber yield
KW  - Sugar efflux
Y1  - 2014
U6  - https://doi.org/10.1016/j.febslet.2014.08.019
SN  - 0014-5793
SN  - 1873-3468
VL  - 588
IS  - 20
SP  - 3726
EP  - 3731
PB  - Elsevier
CY  - Amsterdam
ER  -