TABATA, Azusa, Kiyomi ONO, Akihiro SUMIDA, Kamil LÁSKA and Toshihiko HARA. Photosynthetic responses of Betula ermanii to environmental stress. In PHOTOSYNTHESIS AND STRESS, Biophysical and Biochemical methods in Photosynthesis Research. Brno: Masarykova univerzita, Brno, 2005, p. 88-88. ISBN 80-210-3762-8.
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Basic information
Original name Photosynthetic responses of Betula ermanii to environmental stress
Name in Czech Fotosyntetické reakce Betula ermanii na různé ekologické podmínky
Authors TABATA, Azusa (392 Japan), Kiyomi ONO (392 Japan), Akihiro SUMIDA (392 Japan), Kamil LÁSKA (203 Czech Republic, guarantor) and Toshihiko HARA (392 Japan).
Edition Brno, PHOTOSYNTHESIS AND STRESS, Biophysical and Biochemical methods in Photosynthesis Research, p. 88-88, 1 pp. 2005.
Publisher Masarykova univerzita, Brno
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
Organization unit Faculty of Science
ISBN 80-210-3762-8
Keywords in English photoinhibition; xanthophyll cycle; birch forest; understory dwarf bamboo; environmental stress; competition;
Tags birch forest, competition, environmental stress, photoinhibition, understory dwarf bamboo, xanthophyll cycle
Tags International impact, Reviewed
Changed by Changed by: doc. Mgr. Kamil Láska, Ph.D., učo 17016. Changed: 30/6/2008 15:37.
Abstract
The effects of understory dwarf bamboo (Sasa kurilensis) on the growth of overstory trees were studied in a dense secondary forest of Betula ermanii in northern Japan. Two plots were established in a dense Betula ermanii forest with Sasa in the understory, and Sasa was removed in one plot (removal plot) and Sasa was intact in the other plot (Sasa plot). Leaves of Betula ermanii in the Sasa plot have higher CO2 assimilation rates and larger area. Values of maximum quantum yield of PSII (Fv/Fm) are used as the index of photoinhibition. Decreases in Fv/Fm are observed neither in removal plot nor in Sasa plot. Excess excitation energy is dissipated as heat by de-epoxidation in xanthophyll cycle. The ratios of deepoxidation in xanthophyll cycle were high regardless of the presence/absence of Sasa. Even in the enzyme activities of the enzymatic antioxidant system, any difference was not seen.
Abstract (in Czech)
The effects of understory dwarf bamboo (Sasa kurilensis) on the growth of overstory trees were studied in a dense secondary forest of Betula ermanii in northern Japan. Two plots were established in a dense Betula ermanii forest with Sasa in the understory, and Sasa was removed in one plot (removal plot) and Sasa was intact in the other plot (Sasa plot). Leaves of Betula ermanii in the Sasa plot have higher CO2 assimilation rates and larger area. Values of maximum quantum yield of PSII (Fv/Fm) are used as the index of photoinhibition. Decreases in Fv/Fm are observed neither in removal plot nor in Sasa plot. Excess excitation energy is dissipated as heat by de-epoxidation in xanthophyll cycle. The ratios of deepoxidation in xanthophyll cycle were high regardless of the presence/absence of Sasa. Even in the enzyme activities of the enzymatic antioxidant system, any difference was not seen.
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