Starch as a major integrator in the regulation of plant growth

被引：415

作者：

Sulpice, Ronan ^{[1
]}

Pyl, Eva-Theresa ^{[1
]}

Ishihara, Hirofumi ^{[1
]}

Trenkamp, Sandra ^{[1
]}

Steinfath, Matthias ^{[2
]}

Witucka-Wall, Hanna ^{[3
]}

Gibon, Yves ^{[1
]}

Usadel, Bjoern ^{[1
]}

Poree, Fabien ^{[1
]}

Piques, Maria Conceicao ^{[1
]}

Von Korff, Maria ^{[3
]}

Steinhauser, Marie Caroline ^{[1
]}

Keurentjes, Joost J. B. ^{[4
,5
]}

Guenther, Manuela ^{[1
]}

Hoehne, Melanie ^{[1
]}

Selbig, Joachim ^{[2
]}

Fernie, Alisdair R. ^{[1
]}

Altmann, Thomas ^{[3
]}

Stitt, Mark ^{[1
]}

机构：

[1] Max Planck Inst Mol Plant Physiol, D-14476 Potsdam, Germany

[2] Univ Potsdam, Dept Bioinformat, Inst Biochem & Biol, D-14476 Potsdam, Germany

[3] Univ Potsdam, Dept Genet, Inst Biochem & Biol, D-14476 Potsdam, Germany

[4] Univ Wageningen & Res Ctr, Genet Lab & Lab Plant Physiol, NL-6703 BD Wageningen, Netherlands

[5] Ctr BioSyst Genom, NL-6708 PB Wageningen, Netherlands

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2009年 / 106卷 / 25期

关键词：

Arabidopsis; association mapping; biomass; metabolites; predictive; TREHALOSE; 6-PHOSPHATE; CARBOHYDRATE UTILIZATION; ENZYME-ACTIVITIES; REDOX ACTIVATION; GENE-EXPRESSION; CARBON; PYROPHOSPHORYLASE; PHOTOSYNTHESIS; IDENTIFICATION; METABOLITES;

D O I：

10.1073/pnas.0903478106

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Rising demand for food and bioenergy makes it imperative to breed for increased crop yield. Vegetative plant growth could be driven by resource acquisition or developmental programs. Metabolite profiling in 94 Arabidopsis accessions revealed that biomass correlates negatively with many metabolites, especially starch. Starch accumulates in the light and is degraded at night to provide a sustained supply of carbon for growth. Multivariate analysis revealed that starch is an integrator of the overall metabolic response. We hypothesized that this reflects variation in a regulatory network that balances growth with the carbon supply. Transcript profiling in 21 accessions revealed coordinated changes of transcripts of more than 70 carbon-regulated genes and identified 2 genes (myo-inositol-1-phosphate synthase, a Kelch-domain protein) whose transcripts correlate with biomass. The impact of allelic variation at these 2 loci was shown by association mapping, identifying them as candidate lead genes with the potential to increase biomass production.

引用

页码：10348 / 10353

页数：6

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