Elevated Carbon Dioxide and Chronic Warming Together Decrease Nitrogen Uptake Rate, Net Translocation, and Assimilation in Tomato
نویسندگان
چکیده
منابع مشابه
Nitrogen assimilation and growth of wheat under elevated carbon dioxide.
Simultaneous measurements of CO(2) and O(2) fluxes from wheat (Triticum aestivum) shoots indicated that short-term exposures to elevated CO(2) concentrations diverted photosynthetic reductant from NO(3)(-) or NO(2)(-) reduction to CO(2) fixation. With longer exposures to elevated CO(2), wheat leaves showed a diminished capacity for NO(3)(-) photoassimilation at any CO(2) concentration. Moreover...
متن کاملElevated Carbon Dioxide Stimulates Net Accumulations of Carbon and Nitrogen in Terrestrial Ecosystems: A Meta-Analysis
The capability of terrestrial ecosystems to sequester carbon (C) plays a critical role in regulating future climatic change yet depends on nitrogen (N) availability. To predict long-term ecosystem C storage, it is essential to examine whether soil N becomes progressively limiting as C and N are sequestered in long-lived plant biomass and soil organic matter. A critical parameter to indicate the...
متن کاملConcomitant determination of folar nitrogen loss, net carbon dioxide uptake, and transpiration.
A closed system was designed for concomitant determination of net CO(2) uptake, transpiration, and foliar nitrogen (N) loss in soybeans (Glycine max [L.] Merr.). The CO(2) uptake was monitored by infrared analysis of system air removed periodically in aliquots. Leaf vapors were trapped in calibrated tubes at Dry Ice temperature, and transpiration rate was determined from the quantity of condens...
متن کاملRelationships between net photosynthesis and foliar nitrogen concentrations in a loblolly pine forest ecosystem grown in elevated atmospheric carbon dioxide.
We examined the effects of elevated carbon dioxide concentration ([CO2]) on the relationship between light-saturated net photosynthesis (A(sat)) and area-based foliar nitrogen (N) concentration (N(a)) in the canopy of the Duke Forest FACE experiment. Measurements of A(sat) and N(a) were made on two tree species growing in the forest overstory and four tree species growing in the forest understo...
متن کاملCarbon and Nitrogen Pools in a Tallgrass Prairie Soil under Elevated Carbon Dioxide
more, different ecosystems are limited or controlled by a variety of factors, so that understanding why certain Soil is a potential C sink and could offset rising atmospheric CO2. ecosystems respond and others do not will become imThe capacity of soils to store and sequester C will depend on the rate of C inputs from plant productivity relative to C exports controlled portant for understanding ...
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ژورنال
عنوان ژورنال: Plants
سال: 2021
ISSN: 2223-7747
DOI: 10.3390/plants10040722