Sentences with phrase «high photosynthetic rates»

In the case of the cyanobacterial mat - covered polygonal ponds on Bylot Island, the negative CO2 flux most likely resulted from high photosynthetic rates in the mats, and the modern dates for CH4 suggest that abundant labile compounds coming from a modern autochthonous pool could be the main C supply for microbial activity, including methanogenesis.

Fast - growing plants have higher photosynthetic rates, which are also influenced by light, temperature, vapor pressure deficit, and carbon dioxide.

«The work provides the first quantitative, physiological, and phylogenetic framework for understanding why, when, and how angiosperms evolved much higher photosynthetic rates than other plants.»

Not exact matches

Largely because of these mechanisms, most marine phytoplankton tested in single - species laboratory studies and field population experiments show little or no change in photosynthetic rates when grown under high pCO2 conditions equivalent to ∼ 760 μatm (Tortell et al. 1997, Hein & Sand - Jensen 1997, Burkhardt et al. 2001, Tortell & Morell 2002, Rost et al. 2003, Beardall & Raven 2004, Giordano et al. 2005, Martin & Tortell 2006).

Our model suggests that although reductions in photosynthetic rate at leaf temperatures (TL) above 30 oC may occur, these are almost entirely accountable for in terms of reductions in stomatal conductance in response to higher leaf - to - air vapour pressure deficits D.

Reduced photosynthetic rates were correlated with high internal (non-stomatal) resistances and higher starch levels.