Response of primary processes of photosynthesis in lichens to the presence of fluoranthene

ZEZULKA, Štěpán a Marie KUMMEROVÁ. Response of primary processes of photosynthesis in lichens to the presence of fluoranthene. In MendelNet 2005 Agro - Proceedings of Ph.D. students conference. 2005. ISBN 80-7157-905-X.

Základní údaje

Originální název

Response of primary processes of photosynthesis in lichens to the presence of fluoranthene

Název česky

Odezva primárních procesů fotosyntézy u lišejníků na přítomnost fluoranthenu

Název anglicky

Response of primary processes of photosynthesis in lichens to the presence of fluoranthene

Autoři

ZEZULKA, Štěpán (203 Česká republika, garant, domácí) a Marie KUMMEROVÁ (203 Česká republika, domácí)

Vydání

MendelNet 2005 Agro - Proceedings of Ph.D. students conference, 2005

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Další údaje

Jazyk

čeština

Typ výsledku

Konferenční abstrakt

Obor

30105 Physiology

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/05:00067085

Organizační jednotka

Přírodovědecká fakulta

ISBN

80-7157-905-X

Klíčová slova anglicky

PAHs; lichens; primary processes of photosynthesis; chlorophyll fluorescence

Štítky

chlorophyll fluorescence, lichens, PaHs, primary processes of photosynthesis

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Anotace

V originále

Our objective was to evaluate the short-term effect of polycyclic aromatic hydrocarbon fluoranthene (FLT) and its increasing concentration (0.01, 1 a 5 mg.l-1) on primary processes of photosynthesis in lichens. Responses of two foliose lichens, Lasallia pustulata and Umbilicaria hirsuta, both with green symbiotic algae Trebouxia sp., were studied using an induced chlorophyll fluorescence technique. The obtained results showed a negative affection of primary processes of photosynthesis. Higher FLT concentrations (1 and 5 mg.l-1) caused already after 60 hours of exposure significant increase of basal fluorescence (F0), decrease of potential quantum yield of photosystem II (FV/FM) and quantum yield of electron transport through photosystem II (PhiII).

Anglicky

Our objective was to evaluate the short-term effect of polycyclic aromatic hydrocarbon fluoranthene (FLT) and its increasing concentration (0.01, 1 a 5 mg.l-1) on primary processes of photosynthesis in lichens. Responses of two foliose lichens, Lasallia pustulata and Umbilicaria hirsuta, both with green symbiotic algae Trebouxia sp., were studied using an induced chlorophyll fluorescence technique. The obtained results showed a negative affection of primary processes of photosynthesis. Higher FLT concentrations (1 and 5 mg.l-1) caused already after 60 hours of exposure significant increase of basal fluorescence (F0), decrease of potential quantum yield of photosystem II (FV/FM) and quantum yield of electron transport through photosystem II (PhiII).