The role of ABA in the freezing injury avoidance in two Hypericum species differing in frost tolerance and potential to synthesize hypericins

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33157426" target="_blank" >RIV/61989592:15310/15:33157426 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389030:_____/15:00446933 RIV/00027006:_____/15:00003399

Výsledek na webu

<a href="http://link.springer.com/article/10.1007%2Fs11240-015-0748-9" target="_blank" >http://link.springer.com/article/10.1007%2Fs11240-015-0748-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11240-015-0748-9" target="_blank" >10.1007/s11240-015-0748-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The role of ABA in the freezing injury avoidance in two Hypericum species differing in frost tolerance and potential to synthesize hypericins

Popis výsledku v původním jazyce

Cold stress is a major environmental factor that limits the distribution of plants and determines the spectrum and amount of secondary metabolites with a protective function. The most studied representative of the genus Hypericum, H. perforatum L. (St. John's wort), is known as a producer of the photodynamic pigment hypericin, the unique bioactive compound structurally belonging to naphtodianthrones. In relation to the cosmopolitan distribution, we hypothesised that low temperature stress could increasethe content of naphtodianthrones as a part of the adaptive mechanisms. Two strategies in preventing the freezing injury in the genus Hypericum were defined. Based on a frost-killing temperature (LT50) in untreated (control) plants and more than a 10 oCdecrease in LT50 in cold-acclimated plants, we demonstrated the freezing tolerance for H. perforatum. On the contrary, the freezing avoidance was preferable in H. canariense-the species endemic to (sub)tropical Canary Islands and Madeira.

Název v anglickém jazyce

The role of ABA in the freezing injury avoidance in two Hypericum species differing in frost tolerance and potential to synthesize hypericins

Popis výsledku anglicky

Cold stress is a major environmental factor that limits the distribution of plants and determines the spectrum and amount of secondary metabolites with a protective function. The most studied representative of the genus Hypericum, H. perforatum L. (St. John's wort), is known as a producer of the photodynamic pigment hypericin, the unique bioactive compound structurally belonging to naphtodianthrones. In relation to the cosmopolitan distribution, we hypothesised that low temperature stress could increasethe content of naphtodianthrones as a part of the adaptive mechanisms. Two strategies in preventing the freezing injury in the genus Hypericum were defined. Based on a frost-killing temperature (LT50) in untreated (control) plants and more than a 10 oCdecrease in LT50 in cold-acclimated plants, we demonstrated the freezing tolerance for H. perforatum. On the contrary, the freezing avoidance was preferable in H. canariense-the species endemic to (sub)tropical Canary Islands and Madeira.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Plant Cell, Tissue and Organ Culture (print)

ISSN

0167-6857

e-ISSN

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Svazek periodika

122

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

45-56

Kód UT WoS článku

000355921800005

EID výsledku v databázi Scopus

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