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A balanced polymorphism in biomass resource allocation controlled by phosphate in grasses screened through arsenate tolerance

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A balanced polymorphism in biomass resource allocation controlled by phosphate in grasses screened through arsenate tolerance. / Khan, Bayezid M.; Deacon, Claire; Meharg, Caroline et al.
In: Environmental and Experimental Botany, Vol. 96, 31.12.2013, p. 43-51.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Khan, BM, Deacon, C, Meharg, C, Norton, G, Johnson, D & Meharg, AA 2013, 'A balanced polymorphism in biomass resource allocation controlled by phosphate in grasses screened through arsenate tolerance', Environmental and Experimental Botany, vol. 96, pp. 43-51. https://doi.org/10.1016/j.envexpbot.2013.09.008

APA

Khan, B. M., Deacon, C., Meharg, C., Norton, G., Johnson, D., & Meharg, A. A. (2013). A balanced polymorphism in biomass resource allocation controlled by phosphate in grasses screened through arsenate tolerance. Environmental and Experimental Botany, 96, 43-51. https://doi.org/10.1016/j.envexpbot.2013.09.008

Vancouver

Khan BM, Deacon C, Meharg C, Norton G, Johnson D, Meharg AA. A balanced polymorphism in biomass resource allocation controlled by phosphate in grasses screened through arsenate tolerance. Environmental and Experimental Botany. 2013 Dec 31;96:43-51. Epub 2013 Sept 25. doi: 10.1016/j.envexpbot.2013.09.008

Author

Khan, Bayezid M. ; Deacon, Claire ; Meharg, Caroline et al. / A balanced polymorphism in biomass resource allocation controlled by phosphate in grasses screened through arsenate tolerance. In: Environmental and Experimental Botany. 2013 ; Vol. 96. pp. 43-51.

Bibtex

@article{5ec22ea22141439da335548222899b53,
title = "A balanced polymorphism in biomass resource allocation controlled by phosphate in grasses screened through arsenate tolerance",
abstract = "The response of arsenate and non-tolerant Holcus lanatus L. phenotypes, where tolerance is achieved through suppression of high affinity phosphate/arsenate root uptake, was investigated under different growth regimes to investigate why there is a polymorphism in tolerance found in populations growing on uncontaminated soil. Tolerant plants screened from an arsenic uncontaminated population differed, when grown on the soil from the populations origin, from non-tolerants, in their biomass allocation under phosphate fertilization: non-tolerants put more resources into tiller production and down regulated investment in root production under phosphate fertilization while tolerants tillered less effectively and did not alter resource allocation to shoot biomass under phosphate fertilization. The two phenotypes also differed in their shoot mineral status having higher concentrations of copper, cadmium, lead and manganese, but phosphorus status differed little, suggesting tight homeostasis. The polymorphism was also widely present (40%) in other wild grass species suggesting an important ecological role for this gene that can be screened through plant root response to arsenate.",
keywords = "Arsenic, Balanced polymorphism, Biomass allocation, Holcus lanatus, Phosphate, Tolerance",
author = "Khan, {Bayezid M.} and Claire Deacon and Caroline Meharg and Gareth Norton and David Johnson and Meharg, {Andrew A.}",
year = "2013",
month = dec,
day = "31",
doi = "10.1016/j.envexpbot.2013.09.008",
language = "English",
volume = "96",
pages = "43--51",
journal = "Environmental and Experimental Botany",
issn = "0098-8472",
publisher = "PERGAMON-ELSEVIER SCIENCE LTD",

}

RIS

TY - JOUR

T1 - A balanced polymorphism in biomass resource allocation controlled by phosphate in grasses screened through arsenate tolerance

AU - Khan, Bayezid M.

AU - Deacon, Claire

AU - Meharg, Caroline

AU - Norton, Gareth

AU - Johnson, David

AU - Meharg, Andrew A.

PY - 2013/12/31

Y1 - 2013/12/31

N2 - The response of arsenate and non-tolerant Holcus lanatus L. phenotypes, where tolerance is achieved through suppression of high affinity phosphate/arsenate root uptake, was investigated under different growth regimes to investigate why there is a polymorphism in tolerance found in populations growing on uncontaminated soil. Tolerant plants screened from an arsenic uncontaminated population differed, when grown on the soil from the populations origin, from non-tolerants, in their biomass allocation under phosphate fertilization: non-tolerants put more resources into tiller production and down regulated investment in root production under phosphate fertilization while tolerants tillered less effectively and did not alter resource allocation to shoot biomass under phosphate fertilization. The two phenotypes also differed in their shoot mineral status having higher concentrations of copper, cadmium, lead and manganese, but phosphorus status differed little, suggesting tight homeostasis. The polymorphism was also widely present (40%) in other wild grass species suggesting an important ecological role for this gene that can be screened through plant root response to arsenate.

AB - The response of arsenate and non-tolerant Holcus lanatus L. phenotypes, where tolerance is achieved through suppression of high affinity phosphate/arsenate root uptake, was investigated under different growth regimes to investigate why there is a polymorphism in tolerance found in populations growing on uncontaminated soil. Tolerant plants screened from an arsenic uncontaminated population differed, when grown on the soil from the populations origin, from non-tolerants, in their biomass allocation under phosphate fertilization: non-tolerants put more resources into tiller production and down regulated investment in root production under phosphate fertilization while tolerants tillered less effectively and did not alter resource allocation to shoot biomass under phosphate fertilization. The two phenotypes also differed in their shoot mineral status having higher concentrations of copper, cadmium, lead and manganese, but phosphorus status differed little, suggesting tight homeostasis. The polymorphism was also widely present (40%) in other wild grass species suggesting an important ecological role for this gene that can be screened through plant root response to arsenate.

KW - Arsenic

KW - Balanced polymorphism

KW - Biomass allocation

KW - Holcus lanatus

KW - Phosphate

KW - Tolerance

U2 - 10.1016/j.envexpbot.2013.09.008

DO - 10.1016/j.envexpbot.2013.09.008

M3 - Journal article

VL - 96

SP - 43

EP - 51

JO - Environmental and Experimental Botany

JF - Environmental and Experimental Botany

SN - 0098-8472

ER -