Increasing water use efficiency along the C3 to C4 evolutionary pathway: a stomatal optimization perspective

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Increasing water use efficiency along the C3 to C4 evolutionary pathway: a stomatal optimization perspective

C4 photosynthesis evolved independently numerous times, probably in response to declining atmospheric CO2 concentrations, but also to high temperatures and aridity, which enhance water losses through transpiration. Here, the environmental factors controlling stomatal behaviour of leaf-level carbon and water exchange were examined across the evolutionary continuum from C3 to C4 photosynthesis at...

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Atmospheric CO2 (Ca) concentration has increased significantly during the last 20 000 years, and is projected to double this century. Despite the importance of belowground processes in the global carbon cycle, community-level and single species root responses to rising Ca are not well understood. We measured net community root biomass over 3 years using ingrowth cores in a natural C3–C4 grassla...

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Efficiency of Nitrogen Utilization in C3 and C4 Cereals.

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ژورنال

عنوان ژورنال: Journal of Experimental Botany

سال: 2014

ISSN: 1460-2431,0022-0957

DOI: 10.1093/jxb/eru205