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Accumulation and subcellular localization of glutelin‐2 transcripts during maturation of maize endosperm
Author(s) -
Pérez-Grau Lluis,
Cortadas Jordi,
Puigdomènech Pere,
Palau Jaume
Publication year - 1986
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(86)80666-4
Subject(s) - glutelin , endosperm , storage protein , messenger rna , microbiology and biotechnology , biology , gene , biochemistry
The expression of glutelin‐2 genes has been studied during maize endosperm maturation and compared to the expression of two different zein genes. Glutelin‐2 mRNA in endosperm accumulates in parallel to zein mRNAs, nevertheless, the opaque‐2 mutation does not affect glutelin‐2 transcription. Subcellular fractionation of endosperm tissue shows that glutelin‐2 mRNA is accumulated in the protein body fraction indicating that these organelles are the place of translation of glutelin‐2 mRNA. The results indicate that the levels of glutelin‐2 transcripts in maize endosperm increase following a temporal pattern similar to that displayed by zein transcripts, the typical maize storage protein.