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Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development

In flowering plants, proper development of male generative organs is required for successful sexual reproduction. Stamen primordia arise in the third whorl of floral organs and subsequently differentiate into filaments and anthers. The early phase of stamen development, in which meiosis occurs, is f...

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Autores principales: Marciniak, Katarzyna, Przedniczek, Krzysztof
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6827089/
https://www.ncbi.nlm.nih.gov/pubmed/31618967
http://dx.doi.org/10.3390/genes10100811
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author Marciniak, Katarzyna
Przedniczek, Krzysztof
author_facet Marciniak, Katarzyna
Przedniczek, Krzysztof
author_sort Marciniak, Katarzyna
collection PubMed
description In flowering plants, proper development of male generative organs is required for successful sexual reproduction. Stamen primordia arise in the third whorl of floral organs and subsequently differentiate into filaments and anthers. The early phase of stamen development, in which meiosis occurs, is followed by a late developmental phase, which consists of filament elongation coordinated with pollen maturation, anther dehiscence and finally viable pollen grain release. Stamen development and function are modulated by phytohormones, with a key role of gibberellins (GAs) and jasmonates (JAs). Long-term, extensive investigations, mainly involving GA/JA-deficient and GA/JA-response mutants, have led to a better understanding of the hormone-dependent molecular mechanisms of stamen development. In several species, the principal functions of GAs are to stimulate filament elongation through increased cell elongation and to promote anther locule opening. In the GA-dependent regulation of early stamen development, both the tapetum and developing pollen were identified as major targets. JAs mainly control the late stages of stamen development, such as filament elongation, viable pollen formation and anther dehiscence. A hierarchical relationship between GAs and JAs was recognized mainly in the control of late stamen development. By repressing DELLA proteins, GAs modulate the transcriptional activity of JA biosynthesis genes to promote JA production. A high level of JAs induces a complex of transcription factors crucial for normal stamen development.
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spelling pubmed-68270892019-11-18 Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development Marciniak, Katarzyna Przedniczek, Krzysztof Genes (Basel) Review In flowering plants, proper development of male generative organs is required for successful sexual reproduction. Stamen primordia arise in the third whorl of floral organs and subsequently differentiate into filaments and anthers. The early phase of stamen development, in which meiosis occurs, is followed by a late developmental phase, which consists of filament elongation coordinated with pollen maturation, anther dehiscence and finally viable pollen grain release. Stamen development and function are modulated by phytohormones, with a key role of gibberellins (GAs) and jasmonates (JAs). Long-term, extensive investigations, mainly involving GA/JA-deficient and GA/JA-response mutants, have led to a better understanding of the hormone-dependent molecular mechanisms of stamen development. In several species, the principal functions of GAs are to stimulate filament elongation through increased cell elongation and to promote anther locule opening. In the GA-dependent regulation of early stamen development, both the tapetum and developing pollen were identified as major targets. JAs mainly control the late stages of stamen development, such as filament elongation, viable pollen formation and anther dehiscence. A hierarchical relationship between GAs and JAs was recognized mainly in the control of late stamen development. By repressing DELLA proteins, GAs modulate the transcriptional activity of JA biosynthesis genes to promote JA production. A high level of JAs induces a complex of transcription factors crucial for normal stamen development. MDPI 2019-10-15 /pmc/articles/PMC6827089/ /pubmed/31618967 http://dx.doi.org/10.3390/genes10100811 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Marciniak, Katarzyna
Przedniczek, Krzysztof
Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development
title Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development
title_full Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development
title_fullStr Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development
title_full_unstemmed Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development
title_short Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development
title_sort comprehensive insight into gibberellin- and jasmonate-mediated stamen development
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6827089/
https://www.ncbi.nlm.nih.gov/pubmed/31618967
http://dx.doi.org/10.3390/genes10100811
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