Full TGIF Record # 26715
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Publication Type:
Author(s):Meharg, Andrew A.; Macnair, Mark R.
Author Affiliation:Department of Biological Sciences, Hatherly Laboratories, University of Exeter, Prince of Wales Road, UK
Title:Polymorphism and physiology of arsenate tolerance in Holcus lanatus L. from an uncontaminated site
Source:Plant and Soil. Vol. 146, No. 1/2, October 1992, p. 219-225.
# of Pages:7
Publishing Information:Dordrecht, Netherland: Martinus Nijhoff Publishers
Related Web URL:http://link.springer.com/article/10.1007/BF00012015
    Last checked: 10/14/2015
    Notes: Abstract only
Keywords:TIC Keywords: Holcus lanatus; Arsenates; Physiology; Resistance; Uptake
Abstract/Contents:"The polymorphism of arsenate tolerance in Holcus lanatus L. population from an uncontaminated soil was investigated and a high percentage of tolerant individuals (65%) was found in the population studied. Influx of arsenate was highly correlated to arsenate tolerance within the population, with the most tolerant individuals having the lowest rates of arsenate influx. Isotherms for the high affinity arsenated uptake systems were determined in six tolerant and six non-tolerant genotypes. Tolerant plants had the lowest rates of arsenate influx. This was acheived by adaptation of the Vmax of arsenated influx with the Vmax of the high affinity uptake system saturating at lower substrate concentrations in the tolerant plants. The polymorphism is discussed with relation to adaptation to the extreme environments to which the plants are subjected on mine-spoil soils."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Meharg, A. A., and M. R. Macnair. 1992. Polymorphism and physiology of arsenate tolerance in Holcus lanatus L. from an uncontaminated site. Plant Soil. 146(1/2):p. 219-225.
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