UV-B-induced Morphological Changes - an Enigma

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F17%3A00485094" target="_blank" >RIV/86652079:_____/17:00485094 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

UV-B-induced Morphological Changes - an Enigma

Popis výsledku v původním jazyce

UV-B induces complex changes in plant morphology, resulting in a more compact plant, typically displaying decreases in petiole length, leaf area and/or enhanced thickness together with shorter, but more branched stems. This phenotype is widely reported in the literature. Nevertheless, major question remain with respect to precise phenotype, the underlying regulatory mechanism, and especially a possible functional role. Here, we hypothesise that at least two distinct UV-B phenotypes exist, based on complex dose-response curves, a mixture of transient and permanent morphological changes, and distinct effects on cell and organismal development. One phenotype is mediated through the UV-B photoreceptor, UVR8, and has been conclusively linked to, amongst others, decreases in hypocotyl length and petiole elongation. The second UV-B induced phenotype is associated with generic, oxidative plant stress, as detailed by the concept of Stress Induced Morphological Responses (SIMR). Despite differences in underlying mechanisms, both UV-B responses lead to a more compact phenotype. The functional role of this phenotype remains unclear, and claims that the phenotype contributes to UV-B protection remain unproven. A key target is the development of genetic, biochemical and morphological markers that distinguish the two UV-B induced phenotypes, and therefore facilitate studies of their functional role and/or environmental relevance.

Název v anglickém jazyce

UV-B-induced Morphological Changes - an Enigma

Popis výsledku anglicky

UV-B induces complex changes in plant morphology, resulting in a more compact plant, typically displaying decreases in petiole length, leaf area and/or enhanced thickness together with shorter, but more branched stems. This phenotype is widely reported in the literature. Nevertheless, major question remain with respect to precise phenotype, the underlying regulatory mechanism, and especially a possible functional role. Here, we hypothesise that at least two distinct UV-B phenotypes exist, based on complex dose-response curves, a mixture of transient and permanent morphological changes, and distinct effects on cell and organismal development. One phenotype is mediated through the UV-B photoreceptor, UVR8, and has been conclusively linked to, amongst others, decreases in hypocotyl length and petiole elongation. The second UV-B induced phenotype is associated with generic, oxidative plant stress, as detailed by the concept of Stress Induced Morphological Responses (SIMR). Despite differences in underlying mechanisms, both UV-B responses lead to a more compact phenotype. The functional role of this phenotype remains unclear, and claims that the phenotype contributes to UV-B protection remain unproven. A key target is the development of genetic, biochemical and morphological markers that distinguish the two UV-B induced phenotypes, and therefore facilitate studies of their functional role and/or environmental relevance.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 - Rozvoj Centra pro studium dopadů globální změny klimatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

UV Radiation and Plant Life: Molecular Biology to Ecology

ISBN

978-1-78064-859-0

Počet stran výsledku

13

Strana od-do

58-71

Počet stran knihy

182

Název nakladatele

CABI Publishing

Místo vydání

Wallingford

Kód UT WoS kapitoly

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