The maize glutamine synthetase GS1-2 gene is preferentially expressed in kernel pedicels and is developmentally-regulated.
The pedicel region of Zea mays kernels contains a unique form of maize glutamine synthetase (GS), GSp1. RNA blot analysis using GS gene-specific probes revealed that the expression of the GS1-2 gene was specific to the pedicel and that it increased in the kernels during development. This pattern of the maize GS1-2 gene expression is consistent with the tissue specificity of the GSp1 protein and suggests that it encodes the GSp1 isoform of maize GS.
Rastogi
R
R
Mycotoxin Research Unit, United States Department of Agriculture/Agricultural Research Service, Peoria, Illinois 61604, USA.
Chourey
P S
PS
Muhitch
M J
MJ
D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D005974:Glutamate-Ammonia Ligase / Q000096:biosynthesis* / Q000235:genetics; D007527:Isoenzymes / Q000096:biosynthesis* / Q000235:genetics; D012639:Seeds / Q000201:enzymology* / Q000254:growth & development; D014018:Tissue Distribution; D003313:Zea mays / Q000201:enzymology / Q000235:genetics* / Q000254:growth & development
D007527:Isoenzymes; D005974:Glutamate-Ammonia Ligase