CONTI, Stefano, Jana HAZDROVÁ, Josef HÁJEK, Petra OČENÁŠOVÁ, Miloš BARTÁK, Kateřina SKÁCELOVÁ and Paola ADAMO. Comparative analysis of heterogeneity of primary photosynthetic processes within fruticose lichen thalli: Preliminary study of interspecific differences. Czech Polar Reports. Brno: Masarykova univerzita, 2014, vol. 4, No 2, p. 149-157. ISSN 1805-0689.
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Basic information
Original name Comparative analysis of heterogeneity of primary photosynthetic processes within fruticose lichen thalli: Preliminary study of interspecific differences
Name in Czech Srovnávací analýza heterogenity primárních fotosyntetických procesů v keříčkovitých lišejnících: Předběžná studie mezidruhových rozdílů
Authors CONTI, Stefano (380 Italy), Jana HAZDROVÁ (203 Czech Republic, belonging to the institution), Josef HÁJEK (203 Czech Republic, belonging to the institution), Petra OČENÁŠOVÁ (703 Slovakia), Miloš BARTÁK (203 Czech Republic, guarantor, belonging to the institution), Kateřina SKÁCELOVÁ (203 Czech Republic) and Paola ADAMO (380 Italy).
Edition Czech Polar Reports, Brno, Masarykova univerzita, 2014, 1805-0689.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW fulltext available here
RIV identification code RIV/00216224:14310/14:00079514
Organization unit Faculty of Science
Keywords (in Czech) fluorescence chlorofylu; Kautského kinetika; analýza zhášení; Usnea antarctica; Stereocaulon vesuvianum
Keywords in English chlorophyll fluorescence; Kautsky kinetics; quenching analysis; Usnea antarctica; Stereocaulon vesuvianum
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 28. 4. 2015 09:53.
Abstract
Two species of fruticose lichens from different habitats and of distinct color, Usnea antarctica and Stereocaulon vesuvianum, were compared using chlorophyll fluorescence imaging in order to study the distribution of primary photosynthetic processes within the thalli. The thallus of U. antarctica is yellow with black tips: in this species chlorophyll containing cells were mostly located in the middle region of the thallus and the highest PS II efficiency was detected in the middle to basal region, as shown by the FV/FM and PhiPSII values. No chlorophyll fluorescence was detected in the apical part of the thallus, indicating that little or no photosynthesis takes place in these tissues. The lichen S. vesuvianum is homogeneously pale grayish green and chlorophyll containing cells are distributed along the thallus with maximum concentration in the middle region. In S. vesuvianum, the highest PS II efficiency was detected in the apical to middle region of the thallus, while the basal portion was found to have the lowest efficiency of primary photochemical reactions. Quenching analysis data confirmed the uneven patterns of primary photosynthetic processes within the thalli of these fruticose lichens.
Abstract (in Czech)
Byly porovnany primarni fotosynteticke procesy dvou druhu lisejniku s kerickovitym morfotypem stelky.
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LM2010009, research and development projectName: Projekt CzechPolar - České polární stanice: Stavba a operační náklady
Investor: Ministry of Education, Youth and Sports of the CR
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