Physiological conditions and uptake of inorganic carbon-14 by plant roots
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Isotopic evidence for the effects of earthworm and straw amendment on root carbon uptake of upland rice and maize
2023, European Journal of Soil BiologyImportance of root uptake of <sup>14</sup> CO <inf>2</inf> on <sup>14</sup> C transfer to plants impacted by below-ground <sup>14</sup> CH <inf>4</inf> release
2019, Journal of Environmental RadioactivityCitation Excerpt :Therefore, environmental 14C models for the atmospheric release of 14CO2 are designed to predict atmosphere-to-plant 14C transfer (Aquilonius and Hallberg, 2005; Tani et al., 2011; Le Dizès et al., 2012; Galeriu and Melintescu, 2014). Even though soil is contaminated with 14CO2, it is known widely that plants absorb 14CO2 via foliar uptake (Amiro et al., 1991; Sheppard et al., 1991, 1994; Amiro and Ewing, 1992; Evenden et al., 1998; Killey et al., 1998; Milton et al., 1998; Limer et al., 2013). Sheppard et al. (1991) showed that bean and radish plants potted in carbonated soil assimilated only 1.7% of plant-carbon from the soil.
Coprecipitation of <sup>14</sup>C and Sr with carbonate precipitates: The importance of reaction kinetics and recrystallization pathways
2016, Science of the Total EnvironmentCitation Excerpt :It is mobile in groundwater as the 90Sr2 + ion and is a contaminant of concern at nuclear sites across the world (Gray et al., 1995; Saunders and Toran, 1995; Standring et al., 2002; Thompson et al., 2010). 14C is a long lived neutron capture product that can be taken up by biota during assimilative respiration and growth (Amiro and Ewing, 1992). 14C is an important component of all radioactive wastes and is potentially very mobile in groundwater as H14CO3−.
Effects of soil dilution and amendments (mussel shell, cow bone, and biochar) on Pb availability and phytotoxicity in military shooting range soil
2012, Ecotoxicology and Environmental SafetyA land surface <sup>14</sup>C transfer model and numerical experiments on belowground <sup>14</sup>C accumulation and its impact on vegetation <sup>14</sup>C level
2012, Journal of Environmental RadioactivityCitation Excerpt :These gaseous and aqueous 14CO2 in soil are transported in the soil profile through diffusion and advection (Sheppard et al., 1994; Simunek and Suarez, 1993; Suarez and Simunek, 1993). The aqueous 14CO2 in a rooting zone may be taken up by plant roots, loaded to the aboveground leaves through vessel transport, and incorporated into in-leaf 14C dynamics described above (Amiro et al., 1991; Amiro and Ewing, 1992; Evenden et al., 1998; Ogiyama et al., 2010a,b; Sheppard et al., 1994). Among these 14CO2 transport processes in a land surface ecosystem, deposition of the atmospheric 14CO2 to the leaf interior is the most critical process affecting 14C assimilation in plants, in cases of atmospheric 14CO2 release and also of 14CO2 contamination in soil (Amiro and Ewing, 1992; Evenden et al., 1998; Killey et al., 1998; Koarashi et al., 2002; Ogiyama et al., 2010a; Sheppard et al., 1994; Stewart et al., 2001; van-Dorp and Brennwald, 2009).