Cowpea (Vigna unguiculata) Seed Protein Response to Glyphosate

Electrophoretic analysis of storage protein accumulation in developing cowpea [Vigna unguiculata (L.) Walp. ‘Mississippi Purple’] seed indicated that a large increase in protein content per seed occurred between 10 and 11 days after flowering (DAF). Polypeptides with molecular weights of 54, 49, and...

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Bibliographic Details
Published in:Weed science 1985-01, Vol.33 (1), p.1-6
Main Authors: Cerdeira, Antonio L., Cole, A. Wayne, Luthe, Dawn S.
Format: Article
Language:English
Subjects:
ALMACENAMIENTO DE SEMILLAS
Biological and medical sciences
CAUPI
Chemical control
COMPOSICION
COMPOSITION
COWPEAS
Crop harvesting
DRYING
ELECTROFORESIS
ELECTROPHORESE
ELECTROPHORESIS
Flowering
Fundamental and applied biological sciences. Psychology
Gels
GLYPHOSATE
Herbicides
Molecular weight
NIEBE
Parasitic plants. Weeds
Physiology, Chemistry, and Biochemistry
Phytopathology. Animal pests. Plant and forest protection
Plants
PROTEINAS
PROTEINE
PROTEINS
SECADO
SECHAGE
Seed pods
SEED STORAGE
Sodium
STOCKAGE DES SEMENCES
Storage proteins
Weeds
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Summary:Electrophoretic analysis of storage protein accumulation in developing cowpea [Vigna unguiculata (L.) Walp. ‘Mississippi Purple’] seed indicated that a large increase in protein content per seed occurred between 10 and 11 days after flowering (DAF). Polypeptides with molecular weights of 54, 49, and 41 kilodaltons (kD) accumulated first, and one with a molecular weight of 59 kD appeared 2 days later at 13 DAF. Treatment of plants with glyphosate [N-(phosphonomethyl)glycine] when pods were 7 and 10 DAF prevented accumulation of the major storage protein polypeptides. The accumulation of these polypeptides was not inhibited as much when pods were 11, 12, or 13 DAF at the time of treatment with glyphosate. Pod length and seed fresh weight were inhibited by glyphosate treatment of plants bearing pods 7, 10, 11, and 12 DAF. Pod width, seed dry weight, and seed length were inhibited by glyphosate when plants bearing pods 7, 10, and 11 DAF were treated.
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500083843