TY  - JOUR
A1  - Yu, Tien-Shin
A1  - Kofler, Heike
A1  - Häusler, Rainer E.
A1  - Hille, Diana
A1  - Flügge, Ulf-Ingo
A1  - Zeeman, Samuel C.
A1  - Smith, Alison M.
A1  - Kossmann, Jens
A1  - Lloyd, James R.
A1  - Ritte, Gerhard
A1  - Steup, Martin
A1  - Lue, Wei-Ling
A1  - Chen, Jychian
A1  - Weber, Andreas P. M.
T1  - The Arabidopsis sex1 mutant is defective in the R1 protein, a general regulator of starch degradation in plants, and not in the chloroplast hexose transporter
Y1  - 2001
SN  - 1040-4651
ER  - 
TY  - JOUR
A1  - Ritte, Gerhard
A1  - Steup, Martin
A1  - Kossmann, Jens
A1  - Lloyd, James R.
T1  - Determination of the starch phosphorylating enzyme activity in plant extracts
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Ritte, Gerhard
A1  - Lloyd, James R.
A1  - Eckermann, Nora
A1  - Rottmann, Antje
A1  - Kossmann, Jens
A1  - Steup, Martin
T1  - The starch-related R1 protein is an a-glucan, water dikinase
Y1  - 2002
SN  - 0027-8424
ER  - 
TY  - JOUR
A1  - Lloyd, James R.
A1  - Kossmann, Jens
A1  - Ritte, Gerhard
T1  - Leaf starch degradation comes out of the shadows
N2  - During the day, plants accumulate starch in their leaves as an energy source for the coming night. Based on recent findings, the prevailing view of how the transitory starch is remobilized needs considerable revision. Analyses of transgenic and mutant plants demonstrate that plastidic glucan phosphorylase is not required for normal starch breakdown and cast doubt on the presumed essential role of alpha-amylase but do show that beta-amylase is important. Repression of the activity of a plastidic beta-amylase, the export of its product (maltose) or further metabolism of maltose by a newly identified transglucosidase impairs starch degradation. Breakdown of particulate starch also depends on the activity of glucan-water dikinase, which phosphorylates glucosyl residues within the polymer
Y1  - 2005
ER  -