Plant responses to elevated CO 2 levels in soils: Distinct CO 2 and O 2 -depletion effects
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چکیده
منابع مشابه
Responses of field - grown soybean ( cv . Essex ) to elevated S O 2 under two atmospheric CO 2 concentrations Edward
The objective of this research was to determine the effects of elevated concentrations of carbon dioxide (CO2) and sulfur dioxide (SO2) on field-grown soybean. Soybeans (Glycine max L. Merr. cv. "Essex) were grown a full-season in open-top field chambers exposed to either ambient (350 #l L -j) or elevated CO2 (500 #l L -j) levels under two levels of SO2 (0.00 and 0.12 #l L-t). Enriched CO2, wit...
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Understanding rhizosphere processes in relation to increasing atmospheric CO(2) concentrations is important for predicting the response of forest ecosystems to environmental changes, because rhizosphere processes are intimately linked with nutrient cycling and soil organic matter decomposition, both of which feedback to tree growth and soil carbon storage. Plants grown in elevated CO(2) substan...
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capacity and the ratio of hexose sugars to sucrose, consistent with the hypothesis that sucrose cycling is Sunflower canopies were grown in mesocosom gas a component of the biochemical signalling pathway exchange chambers at ambient and elevated CO 2 concontrolling photosynthetic acclimation to elevated centrations (360 and 700 ppm) and leaf photosynthetic [CO 2 ]. capacities measured at severa...
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Plant allocation to defensive compounds in response to growth in elevated atmospheric CO(2) in combination with two levels of nitrogen was examined. The aim was to discover if allocation patterns of transgenic plants containing genes for defensive chemicals which had not evolved in the species would respond as predicted by the Carbon Nutrient Balance (CNB) hypothesis. Cotton plants (Gossypium h...
متن کاملEffects of CO(2) and O(2) on the Photosynthetic O(2) Evolution of Spirodela polyrrhiza Turions.
Net photosynthetic rates of Spirodela polyrrhiza turions, at low O(2) levels, were 6.2 and 38.8 micromoles O(2) per gram fresh weight per hour at 1 millimolar HCO(3) (-) and CO(2) saturation, respectively, and much lower in a regular low-pH growth solution. Air equilibration O(2) concentrations decreased rates considerably, except at CO(2) saturation. The surfacing rate of turions in various in...
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ژورنال
عنوان ژورنال: International Journal of Greenhouse Gas Control
سال: 2017
ISSN: 1750-5836
DOI: 10.1016/j.ijggc.2016.07.042