Rozdíly ve využití UV-B ve fotosyntéze u buku lesního a smrku ztepilého

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F08%3A00132393" target="_blank" >RIV/62156489:43410/08:00132393 - 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

Differences in the photosynthetic UV-B response between European beech (Fagus sylvatica L.) and Norway spruce (Picea abies (l.) Karst.) samplings

Popis výsledku v původním jazyce

Cloned saplings of Norway spruce (Picea abies (L) K a r s t.) and beech (Fagus sylvatica L.) (7 years old) were exposed to enhanced UV-B irradiation (+25%) continuously over three growing seasons (1999-2001). Selected parameters of variable chlorophyll afluorescence and pigment composition were analysed in the late summer of the third growing season to evaluate the influence of long-term elevated UV-B irradiation on broadleaf and conifer tree species. To obtain information on the xanthophyll cycle, thedeepoxidation state (DEPS) was calculated. These tree species responded differentially to the long-term effects of enhanced UV-B radiation, Norway spruce was more sensitive compared to the European beech. The results show that in Norway spruce a long-term exposure to enhanced UV-B radiation under field conditions caused negative changes at the level of primary photosynthetic reactions. Contrary to the beech, this had higher degree of UV-B protective responses. UV-B radiation is not effe

Název v anglickém jazyce

Differences in the photosynthetic UV-B response between European beech (Fagus sylvatica L.) and Norway spruce (Picea abies (l.) Karst.) samplings

Popis výsledku anglicky

Cloned saplings of Norway spruce (Picea abies (L) K a r s t.) and beech (Fagus sylvatica L.) (7 years old) were exposed to enhanced UV-B irradiation (+25%) continuously over three growing seasons (1999-2001). Selected parameters of variable chlorophyll afluorescence and pigment composition were analysed in the late summer of the third growing season to evaluate the influence of long-term elevated UV-B irradiation on broadleaf and conifer tree species. To obtain information on the xanthophyll cycle, thedeepoxidation state (DEPS) was calculated. These tree species responded differentially to the long-term effects of enhanced UV-B radiation, Norway spruce was more sensitive compared to the European beech. The results show that in Norway spruce a long-term exposure to enhanced UV-B radiation under field conditions caused negative changes at the level of primary photosynthetic reactions. Contrary to the beech, this had higher degree of UV-B protective responses. UV-B radiation is not effe

Druh

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

CEP obor

ED - Fyziologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Ekológia (Bratislava) : international journal for ecological problems of the biosphere

ISSN

1335-342X

e-ISSN

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Svazek periodika

27

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

13

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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