HÁJEK, Josef and Miloš BARTÁK. Combined effect of NaCl and temperature on chlorophyll fluorescence parameters in Lasallia pustulata and Umbilicaria hirsuta. In Book of Abstracts. Plant Physiology Conference of Ph.D. Students and Young Scientists. Brno: Mendel University of Agriculture and Forestry, Masaryk University, 2003, p. 113-114. ISBN 80-7157-676-X.
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Basic information
Original name Combined effect of NaCl and temperature on chlorophyll fluorescence parameters in Lasallia pustulata and Umbilicaria hirsuta
Authors HÁJEK, Josef (203 Czech Republic) and Miloš BARTÁK (203 Czech Republic, guarantor).
Edition Brno, Book of Abstracts. Plant Physiology Conference of Ph.D. Students and Young Scientists, p. 113-114, 2 pp. 2003.
Publisher Mendel University of Agriculture and Forestry, Masaryk University
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10600 1.6 Biological sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/03:00008878
Organization unit Faculty of Science
ISBN 80-7157-676-X
Keywords in English lichens; photosynthesis; osmotic stress; water potential; dehydration
Tags dehydration, lichens, osmotic stress, photosynthesis, water potential
Changed by Changed by: doc. Mgr. Josef Hájek, Ph.D., učo 16840. Changed: 31/5/2006 17:35.
Abstract
In both lichen species measured under 22 and 5 degC, increased osmotic stress led to a decrease in Fv/Fm ratio of chlorophyll fluorescence and also in quantum yield of photosystem two. Time courses of background chlorophyll fluorescence revealed two phases of phases of osmotic stress: (1)mild - induced by water potential of about-2.3 MPa, and (b)heavy - induced by water potential of about -17.0 Mpa.
Links
GP206/03/P140, research and development projectName: Limitace fotochemických a biochemických procesů fotosyntézy lišejníků za nízkých teplot
Investor: Czech Science Foundation, Limitation of photochemical and biochemical processes of photosynthesis of lichens under low temperature
MSM 143100007, plan (intention)Name: Ekologie pobřežní antarktické vegetační oázy
Investor: Ministry of Education, Youth and Sports of the CR, Ecology of the coastal vegetation
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