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has been cited by the following article:

• TITLE: Temperature Dependency of Photosynthesis of Sphagnum spp. Distributed in the Warm-Temperate and the Cool-Temperate Mires of Japan

  AUTHORS: Akira Haraguchi, Nanae Yamada

  KEYWORDS: Carbon Dioxide Exchange, Photosynthesis, Sphagnum, Temperature Dependence

  JOURNAL NAME: American Journal of Plant Sciences, Vol.2 No.5, November 25, 2011

  ABSTRACT: We investigated the temperature dependency of photosynthetic rates for five Sphagnum species: Sphagnum palustre, S. fimbriatum in the Tadewara mire (south-western Japan in a warm-temperate zone) and S. papillosum, S. fuscum, S. fallax in the East Ochiishi mire (north-eastern Japan in a cool-temperate zone) measuring photosynthetic light response within a temperature range between 5 and 40。C. The maximum photosynthetic rate was obtained at T = 35。C for S. palustre, S. fuscum and S. papillosum, and at T = 30。C for S. fimbriatum and S. fallax. Photosynthetic rates of all these species showed a maximum at 300 - 500 μmol·m-2·s-1 of PPFD and it decreased at higher PPFD (>500 μmol·m-2·s-1) under low temperature (5。C - 10。C). These results imply that Sphagnum species are not fully physiologically adapted to low temperature environments, although Sphagnum species distribute mostly in the circumpolar region.