Two cytosolic glutamine synthetase isoforms of maize are specifically involved in the control of grain production.

doi:10.1105/tpc.106.042689

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Article

Two cytosolic glutamine synthetase isoforms of maize are specifically involved in the control of grain production.

The Plant cell - 1 Nov 2006

Martin Antoine, Lee Judy, Kichey Thomas, Gerentes Denise, Zivy Michel, Tatout Christophe, Dubois Frédéric, Balliau Thierry, Valot Benoît, Davanture Marlène, Tercé-Laforgue Thérèse, Quilleré Isabelle, Coque Marie, Gallais André, Gonzalez-Moro María-Begoña, Bethencourt Linda, Habash Dimah Z, Lea Peter J, Charcosset Alain, Perez Pascual, Murigneux Alain, Sakakibara Hitoshi, Edwards Keith J, Hirel Bertrand

Abstract excerpt

The roles of two cytosolic maize glutamine synthetase isoenzymes (GS1), products of the Gln1-3 and Gln1-4 genes, were investigated by examining the impact of knockout mutations on kernel yield. In the gln1-3 and gln1-4 single mutants and the gln1-3 gln1-4 double mutant, GS mRNA expression was impaired, resulting in reduced GS1 protein and activity. The gln1-4 phenotype displayed reduced kernel size and gln1-3...

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PMID: 17138698
DOI: 10.1105/tpc.106.042689
PMCID: PMC1693956

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