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Μοριακή και φυσιολογική ανάλυση της άνθισης
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Matsoukas, Ioannis G., Thomas, Brian and Massiah, Andrea J. (2005) Μοριακή και φυσιολογική ανάλυση της άνθισης. In: 22ο Πανελλήνιο Συνέδριο Ελληνικής Εταιρείας Επιστήµης Οπωροκηπευτικών, Πάτρα, Ἑλλάς-Greece, 19-21 October 2005 doi:10.1029/2004JC002566
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Abstract
At a certain point in the plant life cycle annual plants undergo a major developmental transition and switch from vegetative to reproductive development. Physiological and genetic analysis of flowering has shown that flowering time in most plant species is regulated by a combination of endogenous controls and environmental cues. The autonomous and gibberellin pathways promote flowering in response to endogenous factors. The vernalization and photoperiod pathways promote flowering in response to environmental factors. The autonomous pathway promotes flowering by reducing the expression of the FLC gene that encodes a repressor of flowering. Mutations affecting GA synthesis delay flowering under long and short days, but have their strongest effect under short days. Vernalization is the extended exposure to low temperatures soon after germination. Vernalization leads to repression of FLC
expression. The photoperiod pathway includes genes that encode proteins that specifically regulate flowering, are involved in the regulation of light signal inputs or are
components of the circadian clock. The oscillator controls the output pathways, which activate many developmental
processes, such as flowering. A pathway involving carbohydrate metabolism related events has been recently been proposed to be involved in regulation of flowering. All pathways converge at the Floral Pathway
Integrators (FPIs). FPIs promote expression of the Floral Meristem Identity genes, which results in initiation of flowering.
Item Type: | Conference Item (Poster) | ||||
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Alternative Title: | Molecular and physiological analysis of flowering | ||||
Subjects: | Q Science > QK Botany | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Warwick HRI (2004-2010) | ||||
Library of Congress Subject Headings (LCSH): | Plants, Flowering of -- Flowering time, Plants, Flowering of -- Genetics | ||||
Official Date: | 20 October 2005 | ||||
Dates: |
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DOI: | 10.1029/2004JC002566 | ||||
Status: | Not Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Description: | 22nd National Congress of the Hellenic Society of Horticultural Science, October 19, 20, 21, 2005. University of Patras, Patras. Greece. |
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Date of first compliant deposit: | 19 December 2015 | ||||
Date of first compliant Open Access: | 19 December 2015 | ||||
Funder: | Greek State Scholarships Foundation (IKY), Great Britain. Department for Environment, Food and Rural Affairs (DEFRA), Biotechnology and Biological Sciences Research Council (Great Britain) (BBSRC) | ||||
Conference Paper Type: | Poster | ||||
Title of Event: | 22ο Πανελλήνιο Συνέδριο Ελληνικής Εταιρείας Επιστήµης Οπωροκηπευτικών | ||||
Type of Event: | Conference | ||||
Location of Event: | Πάτρα, Ἑλλάς-Greece | ||||
Date(s) of Event: | 19-21 October 2005 |
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