KUMMEROVÁ, Marie, Miloš BARTÁK, Jaroslava DUBOVÁ, Jan TŘÍSKA, Eva ZUBROVÁ and Štěpán ZEZULKA. Inhibitory effect of fluoranthene on photosynthetic processes in lichens detected by chlorophyll fluorescence. Ecotoxicology. Norwell, USA: Springer US, 2006, vol. 15, No 2, p. 121-131. ISSN 0963-9292.
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Basic information
Original name Inhibitory effect of fluoranthene on photosynthetic processes in lichens detected by chlorophyll fluorescence
Name in Czech Inhibiční účinek fluoranthenu na fotosyntetické procesy u lišejníků detekovaný pomocí fluorescence chlorofylu
Authors KUMMEROVÁ, Marie (203 Czech Republic, guarantor, belonging to the institution), Miloš BARTÁK (203 Czech Republic, belonging to the institution), Jaroslava DUBOVÁ (203 Czech Republic, belonging to the institution), Jan TŘÍSKA (203 Czech Republic), Eva ZUBROVÁ (203 Czech Republic) and Štěpán ZEZULKA (203 Czech Republic, belonging to the institution).
Edition Ecotoxicology, Norwell, USA, Springer US, 2006, 0963-9292.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30105 Physiology
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.400
RIV identification code RIV/00216224:14310/06:00016607
Organization unit Faculty of Science
UT WoS 000235704300002
Keywords in English fluoranthene; Lasallia pustulata; Umbilicaria hirsuta; chlorophyll fluorescence; content of fluoranthene; anatomical features
Tags anatomical features, chlorophyll fluorescence, content of fluoranthene, fluoranthene, Lasallia pustulata, Umbilicaria hirsuta
Changed by Changed by: RNDr. Štěpán Zezulka, Ph.D., učo 4658. Changed: 10/4/2012 12:55.
Abstract
The effect of increasing concentration (0.01, 1 and 5 mg.l-1) of fluoranthene (FLT) and the duration of exposure (12, 24, 36, 48 and 60 h) on the chlorophyll fluorescence parameters (F0, FV/FM, PhiII and (FM-FS)/FS)) of symbiotic algae in thalli of two foliose lichens Lasallia pustulata and Umbilicaria hirsuta was investigated. Also the FLT concentration in thalli of both lichen species and the proportion of symbiotic algae (photobionts) in thalli was studied. The results obtained demonstrated that the applied concentration of FLT (1 and 5 mg l-1) affected primary photochemical processes of photosynthesis of algae in both lichen species. The F0 values increased and the FV/FM and PhiII values decreased. The fluoranthene content in thallus of both lichen species was increased with increasing FLT concentration in the environment. Chlorophyll fluorescence parameters showed different sensitivity to the content of FLT in Lasallia pustulata and Umbilicaria hirsuta, respectively. Higher sensitivity, detected in U. hirsuta, can be related to its diverse anatomical structure (higher portion of symbiotic algae in thalli) and to the different (nearly 2.5 times higher) content of FLT after exposure.
Abstract (in Czech)
Byl hodnocen vliv zvyšující se koncentrace fluoranthenu (FLT; 0.01, 1 a 5 mg.l-1) a doby expozice (12, 24, 36, 48 a 60 h) na parametry indukované fluorescence chlorofylu (F0, FV/FM, PhiII a (FM-FS)/FS)) u symbiotických řas ve stélkách dvou lupenitých lišejníků Lasallia pustulata a Umbilicaria hirsuta. Hodnocen byl také obsah FLT ve stélkách a podíl buněk fotobionta ve stélce. Výledky dokládají ovlivnění primárních fotochemických procesů řas (zvýšení F0 a pokles FV/FM a PhiII). Obsah FLT ve stélkách se zvyšoval s jeho zvyšující se koncentrací v prostředí. V parametrech fluorescence chlorofylu byla zaznamenána rozdílná citlivost použitých druhů lišejníků. Vyšší citlivost zaznamenaná u U.hirsuta může souviset s její odlišnou anatomickou stavbou (vyšší podíl buněk fotobionta ve stélce) a téměř 2.5 krát vyšším obsahem FLT na konci expoziční doby.
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