Molecular basis of natural variation and environmental control of trichome patterning

Trichomes are differentiated epidermal cells on above ground organs of nearly all land plants. They play important protective roles as structural defences upon biotic attacks such as herbivory, oviposition and fungal infections and against abiotic stressors such as drought, heat, freezing, excess of...

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Main Author: Marie-Theres eHauser
Format: Article
Language:English
Published: Frontiers Media S.A. 2014-07-01
Series:Frontiers in Plant Science
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00320/full
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author Marie-Theres eHauser
author_facet Marie-Theres eHauser
author_sort Marie-Theres eHauser
collection DOAJ
description Trichomes are differentiated epidermal cells on above ground organs of nearly all land plants. They play important protective roles as structural defences upon biotic attacks such as herbivory, oviposition and fungal infections and against abiotic stressors such as drought, heat, freezing, excess of light and UV radiation. The pattern and density of trichomes is highly variable within natural population suggesting tradeoffs between traits positively affecting fitness such as resistance and the costs of trichome production. The spatial distribution of trichomes is regulated through a combination of endogenous developmental programs and external signals. This review summarizes the current understanding on the molecular basis of the natural variation and the role of phytohormones and environmental stimuli on trichome patterning.
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spelling doaj.art-323c43aeeb49486b8d2694b3cf14b5d22022-12-22T00:19:44ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2014-07-01510.3389/fpls.2014.0032099452Molecular basis of natural variation and environmental control of trichome patterningMarie-Theres eHauser0BOKU - University of Natural Resources and Life Sciences, ViennaTrichomes are differentiated epidermal cells on above ground organs of nearly all land plants. They play important protective roles as structural defences upon biotic attacks such as herbivory, oviposition and fungal infections and against abiotic stressors such as drought, heat, freezing, excess of light and UV radiation. The pattern and density of trichomes is highly variable within natural population suggesting tradeoffs between traits positively affecting fitness such as resistance and the costs of trichome production. The spatial distribution of trichomes is regulated through a combination of endogenous developmental programs and external signals. This review summarizes the current understanding on the molecular basis of the natural variation and the role of phytohormones and environmental stimuli on trichome patterning.http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00320/fullGWASnatural variationQTLabioticBioticdefence
spellingShingle Marie-Theres eHauser
Molecular basis of natural variation and environmental control of trichome patterning
Frontiers in Plant Science
GWAS
natural variation
QTL
abiotic
Biotic
defence
title Molecular basis of natural variation and environmental control of trichome patterning
title_full Molecular basis of natural variation and environmental control of trichome patterning
title_fullStr Molecular basis of natural variation and environmental control of trichome patterning
title_full_unstemmed Molecular basis of natural variation and environmental control of trichome patterning
title_short Molecular basis of natural variation and environmental control of trichome patterning
title_sort molecular basis of natural variation and environmental control of trichome patterning
topic GWAS
natural variation
QTL
abiotic
Biotic
defence
url http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00320/full
work_keys_str_mv AT marietheresehauser molecularbasisofnaturalvariationandenvironmentalcontroloftrichomepatterning