Increases in growth at elevated [CO2] may be constrained by a plant's ability to assimilate the nutrients needed for new tissue in sufficient quantity to match the increase in carbon fixation and/or the ability to transport those nutrients and carbon in sufficient quantity to growing organs and tissues. Analysis of metabolites provides an indication of shifts in carbon and nitrogen partitioning...

Carbon dioxide (CO2) is involved in plant growth as well as plant responses to abiotic stresses; however, it remains unclear whether CO2 is involved in the response of rice (Oryza sativa) to aluminum (Al) toxicity. In the current study, we discovered that elevated CO2 (600 μL·L-1) significantly alleviated Al-induced inhibition of root elongation that occurred in ambient CO2 (400 μL·L-1). This p...

Direct use of atmospheric CO2 as a C1 source to synthesize high-value chemicals through environmentally benign processes is of great interest, yet challenging. Porous heterogeneous catalysts that are capable of simultaneously capturing and converting CO2 are promising candidates for such applications. Herein, a family of organic ionic polymers with nanoporous structure, large surface area, stro...

Isolated chloroplasts which are incapable of causing a net reduction of COZ accompanied by 02 evolution can still cause a Hill reaction, that is, a photoreduction of an added oxidant with concomitant evolution of a stoichiometric amount of OZ. The occurrence of the Hill reaction has long been regarded as part of the evidence for the conclusion that the action of light in photosynthesis leads fi...

Despite its pivotal feedback to carbon cycling, representing the dynamic response of vegetation nitrogen limitation is a key challenge for simulating terrestrial sink with land models. Here, we explore representation this novel biological fixation and cycling in Canadian Land Surface Scheme Including Biogeochemical Cycles. First, assess how incorporating via influences CO2 fertilization experim...

Dinitrogen (N2) fixation is a major source of bioavailable nitrogen to oligotrophic ocean communities. Yet, we have limited understanding how ongoing climate change could alter N2 fixation. Most our based on short-term laboratory experiments conducted individual N2-fixing species whereas community-level approaches are rare. In this longer-term in situ mesocosm study, aimed improve the role risi...

Returning the carbonated biomass ash into soil can enhance carbon fixation capacity of crop–soil ecosystem, contributing to achievement ‘4 per mille Soils for Food Security and Climate’ goal launched at COP21. The CO2 sequestration ecosystem induced by ash, however, highly depended on pH crops growth, which have not​ been elucidated. Here, we explored effects different management strategies (wa...

The effect of different cropping systems on CO2 fixation by soil microorganisms was studied by comparing soils from three exemplary cropping systems after 10 years of agricultural practice. Studied cropping systems included: continuous cropping of paddy rice (rice-rice), rotation of paddy rice and rapeseed (rice-rapeseed), and rotated cropping of rapeseed and corn (rapeseed-corn). Soils from di...

After the administration of NaHC*03 to the intact animal, labeled carbon has been found in the glycogen of skeletal muscle (1, 2). The explanation of this result may be (a) that all the reactions in the pathway from carbon dioxide to glycogen take place in skeletal muscle itself, as has been found to occur in cardiac muscle (3). On the other hand, it is also possible (5) that the muscle cannot ...

To realize a circular, carbon-neutral economy, it will become important to utilize the greenhouse gas CO2 as sustainable carbon source. Carboxylases, enzymes that capture and convert gaseous are prime candidates pave way towards realizing this vision of CO2-based bio-economy. In last couple years, interest in using engineering carboxylases has been steadily growing. Here, we discuss how basic r...