Vizualizované fotosyntetické charakteristiky liejníku Xanthoria elegans ve vztahu k denním chodm záení, teploty a vlhkosti: terénní studie z ostrova Galindez, pímoská Antarktida.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F05%3A00013939" target="_blank" >RIV/00216224:14310/05:00013939 - 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

Visualized photosynthetic characteristics of the lichen <i>Xanthoria elegans</i> related to daily courses of light, temperature and hydration: a field study from Galindez Island, maritime Antarctica.

Popis výsledku v původním jazyce

Diurnal courses of photosystem II (PS II) activity of Xanthoria elegans were continuously monitored using a novel technique of chlorophyll fluorescence imaging in the field (maritime Antarctica) over a period of 7 days. The lichen specimens grew on stonesurfaces in a North-facing coastal area of Galindez Island (Argentine Islands). A portable fluorometer FluorCam equipped with a CCD camera and image analysis software was placed over a thallus so that false color images of FV/FM and quantum yield of photochemical processes in PS II (śII) distribution over the thallus could be taken in the course of a day. Simultaneously, microclimatic parameters of the habitat were recorded: air and thallus temperature, relative air humidity, PAR (photosynthetically active radiation) and global radiation. Photosynthetic processes in X. elegans were activated by rainfall or water from melting snow. After thallus hydration, FV/FM and śII gradually decreased from their maximal values due to evaporation an

Název v anglickém jazyce

Visualized photosynthetic characteristics of the lichen <i>Xanthoria elegans</i> related to daily courses of light, temperature and hydration: a field study from Galindez Island, maritime Antarctica.

Popis výsledku anglicky

Diurnal courses of photosystem II (PS II) activity of Xanthoria elegans were continuously monitored using a novel technique of chlorophyll fluorescence imaging in the field (maritime Antarctica) over a period of 7 days. The lichen specimens grew on stonesurfaces in a North-facing coastal area of Galindez Island (Argentine Islands). A portable fluorometer FluorCam equipped with a CCD camera and image analysis software was placed over a thallus so that false color images of FV/FM and quantum yield of photochemical processes in PS II (śII) distribution over the thallus could be taken in the course of a day. Simultaneously, microclimatic parameters of the habitat were recorded: air and thallus temperature, relative air humidity, PAR (photosynthetically active radiation) and global radiation. Photosynthetic processes in X. elegans were activated by rainfall or water from melting snow. After thallus hydration, FV/FM and śII gradually decreased from their maximal values due to evaporation an

Druh

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

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

The Lichenologist

ISSN

0024-2829

e-ISSN

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Svazek periodika

37

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

AQ - Antarktida

Počet stran výsledku

11

Strana od-do

433-443

Kód UT WoS článku

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EID výsledku v databázi Scopus

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