Plant Physiol.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (4)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Josè-Estanyol, M.
Right arrow Articles by Puigdomènech, P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Josè-Estanyol, M.
Right arrow Articles by Puigdomènech, P.
Agricola
Right arrow Articles by Josè-Estanyol, M.
Right arrow Articles by Puigdomènech, P.

Developmental and Hormonal Regulation of Genes Coding for Proline-Rich Proteins in Female Inflorescences and Kernels of Maize1

Matilde Josè-Estanyol and Pere Puigdomènech*

Departament de Genètica Molecular, Centre d'Investigació i Desenvolupament, Consejo Superior de Investigaciones Científicas, Jordi Girona Salgado 18-26, 08034 Barcelona, Spain

The 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.

1   This study was supported by grants from the Plan Nacional de Investigación Científica y Técnica (no. BIO94-0734) and from the European Communities (no. BIO4-CT96-0210), and was carried out within the framework of the Centre de Referència de Biotecnologia de la Generalitat de Catalunya.
*   Corresponding author; e-mail pprgmp{at}cid.csic.es; fax 34-3-204-5904.

Plant Physiol. (1998) 116: 485-494
Copyright Clearance Center:   0032-0889/98/116/0485/10
© 1998 American Society of Plant Physiologists






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1998 by the American Society of Plant Biologists