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Title

Developmental and hormonal regulation of genes coding for proline-rich proteins in female inflorescences and kernels of maize

AuthorsJosé Estanyol, Matilde ; Puigdomènech, Pere
Issue DateFeb-1998
PublisherAmerican Society of Plant Biologists
CitationPlant Physiology 119(4): 116(2): 485–494 (1998)
AbstractThe pattern of expression of two genes coding for proteins rich in proline, HyPRP (hybrid proline-rich protein) and HRGP (hydroxyproline-rich glycoprotein), has been studied in maize (Zea mays) embryos by RNA analysis and in situ hybridization. mRNA accumulation is high during the first 20 d after pollination, and disappears in the maturation stages of embryogenesis. The two genes are also expressed during the development of the pistillate spikelet and during the first stages of embryo development in adjacent but different tissues. HyPRP mRNA accumulates mainly in the scutellum and HRGP mRNA mainly in the embryo axis and the suspensor. The two genes appear to be under the control of different regulatory pathways during embryogenesis. We show that HyPRP is repressed by abscisic acid and stress treatments, with the exception of cold treatment. In contrast, HRGP is affected positively by specific stress treatments.
Description10 pages, 6 figures.-- PMID: 9490753 [PubMed].-- PMCID: PMC35105.
Publisher version (URL)http://www.plantphysiol.org/cgi/content/full/116/2/485
URIhttp://hdl.handle.net/10261/26139
ISSN0032-0889
E-ISSN1532-2548
Appears in Collections:(IQAC) Artículos
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