TY - JOUR
T1 - The effect of high levels of carbon dioxide on dark respiration and growth of plants
AU - REUVENI, J.
AU - GALE, J.
PY - 1985/11
Y1 - 1985/11
N2 - Abstract Raising ambient levels of CO2 during the night, between 350 and 950cm3m−3, reduced the dark respiration rate of Medicago sativum seedlings. The percentage effect was greater for maintenance respiration than for dark respiration as a whole, and when the plants were in a low photosynthate status. Twenty‐four h carbon balance studies confirmed a reduction in night time respiration and an increase of net carbon gain when night time [CO2] was high. Growth experiments showed a small but significant increase of dry weight in Medicago sativum seedlings exposed to high [CO2] (∼ 1200 cm3m−3) at night. This effect was greater for plants grown with Rhizobium nodules than for plants grown with nitrate in the absence of Rhizobium. A similar, but smaller and statistically non‐significant effect of high night time [CO2] on growth was found for Xanthium strumarium seedlings. The significance of these findings is discussed in relation to the rising CO2 content of the atmosphere.
AB - Abstract Raising ambient levels of CO2 during the night, between 350 and 950cm3m−3, reduced the dark respiration rate of Medicago sativum seedlings. The percentage effect was greater for maintenance respiration than for dark respiration as a whole, and when the plants were in a low photosynthate status. Twenty‐four h carbon balance studies confirmed a reduction in night time respiration and an increase of net carbon gain when night time [CO2] was high. Growth experiments showed a small but significant increase of dry weight in Medicago sativum seedlings exposed to high [CO2] (∼ 1200 cm3m−3) at night. This effect was greater for plants grown with Rhizobium nodules than for plants grown with nitrate in the absence of Rhizobium. A similar, but smaller and statistically non‐significant effect of high night time [CO2] on growth was found for Xanthium strumarium seedlings. The significance of these findings is discussed in relation to the rising CO2 content of the atmosphere.
KW - atmospheric carbon dioxide
KW - carbon dioxide
KW - dark respiration
KW - growth
KW - maintenance‐respiration
KW - Medicago sativum
KW - uncoupled‐respiration
KW - Xanthium strumarium
UR - http://www.scopus.com/inward/record.url?scp=84981610819&partnerID=8YFLogxK
U2 - 10.1111/j.1365-3040.1985.tb01701.x
DO - 10.1111/j.1365-3040.1985.tb01701.x
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AN - SCOPUS:84981610819
SN - 0140-7791
VL - 8
SP - 623
EP - 628
JO - Plant, Cell and Environment
JF - Plant, Cell and Environment
IS - 8
ER -