| TABATA, Azusa, Kiyomi ONO, Akihiro SUMIDA, Kamil LÁSKA a 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, s. 88-88. ISBN 80-210-3762-8. |
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@inproceedings{726250,
author = {Tabata, Azusa and Ono, Kiyomi and Sumida, Akihiro and Láska, Kamil and Hara, Toshihiko},
address = {Brno},
booktitle = {PHOTOSYNTHESIS AND STRESS, Biophysical and Biochemical methods in Photosynthesis Research},
keywords = {photoinhibition; xanthophyll cycle; birch forest; understory dwarf bamboo; environmental stress; competition;},
language = {eng},
location = {Brno},
isbn = {80-210-3762-8},
pages = {88-88},
publisher = {Masarykova univerzita, Brno},
title = {Photosynthetic responses of Betula ermanii to environmental stress},
year = {2005}
}
TY - JOUR
ID - 726250
AU - Tabata, Azusa - Ono, Kiyomi - Sumida, Akihiro - Láska, Kamil - Hara, Toshihiko
PY - 2005
TI - Photosynthetic responses of Betula ermanii to environmental stress
PB - Masarykova univerzita, Brno
CY - Brno
SN - 8021037628
KW - photoinhibition
KW - xanthophyll cycle
KW - birch forest
KW - understory dwarf bamboo
KW - environmental stress
KW - competition;
N2 - 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.
ER -
TABATA, Azusa, Kiyomi ONO, Akihiro SUMIDA, Kamil LÁSKA a Toshihiko HARA. Photosynthetic responses of Betula ermanii to environmental stress. In \textit{PHOTOSYNTHESIS AND STRESS, Biophysical and Biochemical methods in Photosynthesis Research}. Brno: Masarykova univerzita, Brno, 2005, s.~88-88. ISBN~80-210-3762-8.
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