a 2005

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

ZEZULKA, Štěpán and Marie KUMMEROVÁ

Basic information

Original name

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

Name in Czech

Odezva primárních procesů fotosyntézy u lišejníků na přítomnost fluoranthenu

Name (in English)

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

Authors

ZEZULKA, Štěpán (203 Czech Republic, guarantor, belonging to the institution) and Marie KUMMEROVÁ (203 Czech Republic, belonging to the institution)

Edition

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

Other information

Language

Czech

Type of outcome

Konferenční abstrakt

Field of Study

30105 Physiology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/05:00067085

Organization unit

Faculty of Science

ISBN

80-7157-905-X

Keywords in English

PAHs; lichens; primary processes of photosynthesis; chlorophyll fluorescence

Tags

Změněno: 10/4/2012 12:49, RNDr. Štěpán Zezulka, Ph.D.

Abstract

ORIG EN

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).

In English

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).