UV-B-induced Morphological Changes - an Enigma

Result code in 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>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

UV-B-induced Morphological Changes - an Enigma

Original language description

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.

Czech name

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Czech description

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Type

C - Chapter in a specialist book

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

<a href="/en/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 – Development of the Centre of Global Climate Change Impacts Studies</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Book/collection name

UV Radiation and Plant Life: Molecular Biology to Ecology

ISBN

978-1-78064-859-0

Number of pages of the result

13

Pages from-to

58-71

Number of pages of the book

182

Publisher name

CABI Publishing

Place of publication

Wallingford

UT code for WoS chapter

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