Response-based selection of barley cultivars and legume species for complementarity: Root morphology and exudation in relation to nutrient source

Courtney D Giles; Lawrie K Brown; Michael O Adu; Malika M Mezeli; Graeme A Sandral; Richard J Simpson; Renate Wendler; Charles A Shand; Daniel Menezes-Blackburn; Tegan Darch; Marc I Stutter; David G Lumsdon; Hao Zhang; Martin S A Blackwell; Catherine Wearing; Patricia Cooper; Philip M Haygarth; Timothy S George

doi:10.1016/j.plantsci.2016.11.002

Response-based selection of barley cultivars and legume species for complementarity: Root morphology and exudation in relation to nutrient source

Courtney D Giles, Lawrie K Brown, Michael O Adu, Malika M Mezeli, Graeme A Sandral, Richard J Simpson, Renate Wendler, Charles A Shand, Daniel Menezes-Blackburn, Tegan Darch, Marc I Stutter, David G Lumsdon, Hao Zhang, Martin S A Blackwell, Catherine Wearing, Patricia Cooper, Philip M Haygarth, Timothy S George

Soils, Water and Agricultural Engineering

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

Phosphorus (P) and nitrogen (N) use efficiency may be improved through increased biodiversity in agroecosystems. Phenotypic variation in plants' response to nutrient deficiency may influence positive complementarity in intercropping systems. A multicomponent screening approach was used to assess the influence of P supply and N source on the phenotypic plasticity of nutrient foraging traits in barley (H. vulgare L.) and legume species. Root morphology and exudation were determined in six plant nutrient treatments. A clear divergence in the response of barley and legumes to the nutrient treatments was observed. Root morphology varied most among legumes, whereas exudate citrate and phytase activity were most variable in barley. Changes in root morphology were minimized in plants provided with ammonium in comparison to nitrate but increased under P deficiency. Exudate phytase activity and pH varied with legume species, whereas citrate efflux, specific root length, and root diameter lengths were more variable among barley cultivars. Three legume species and four barley cultivars were identified as the most responsive to P deficiency and the most contrasting of the cultivars and species tested. Phenotypic response to nutrient availability may be a promising approach for the selection of plant combinations for minimal input cropping systems.

Original language	English
Pages (from-to)	12-28
Number of pages	17
Journal	Plant Science
Volume	255
DOIs	https://doi.org/10.1016/j.plantsci.2016.11.002
Publication status	Published - Feb 1 2017

Keywords

6-Phytase/metabolism
Agriculture
Ammonium Compounds/metabolism
Biological Transport
Citric Acid/metabolism
Fabaceae/genetics
Hordeum/genetics
Hydrogen-Ion Concentration
Nitrates/metabolism
Nitrogen/metabolism
Phenotype
Phosphorus/deficiency
Plant Exudates/metabolism
Plant Proteins/metabolism
Plant Roots/growth & development
Species Specificity

ASJC Scopus subject areas

Agronomy and Crop Science
Genetics
Plant Science

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10.1016/j.plantsci.2016.11.002

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Giles, C. D., Brown, L. K., Adu, M. O., Mezeli, M. M., Sandral, G. A., Simpson, R. J., Wendler, R., Shand, C. A., Menezes-Blackburn, D., Darch, T., Stutter, M. I., Lumsdon, D. G., Zhang, H., Blackwell, M. S. A., Wearing, C., Cooper, P., Haygarth, P. M., & George, T. S. (2017). Response-based selection of barley cultivars and legume species for complementarity: Root morphology and exudation in relation to nutrient source. Plant Science, 255, 12-28. https://doi.org/10.1016/j.plantsci.2016.11.002

Giles, CD, Brown, LK, Adu, MO, Mezeli, MM, Sandral, GA, Simpson, RJ, Wendler, R, Shand, CA, Menezes-Blackburn, D, Darch, T, Stutter, MI, Lumsdon, DG, Zhang, H, Blackwell, MSA, Wearing, C, Cooper, P, Haygarth, PM & George, TS 2017, 'Response-based selection of barley cultivars and legume species for complementarity: Root morphology and exudation in relation to nutrient source', Plant Science, vol. 255, pp. 12-28. https://doi.org/10.1016/j.plantsci.2016.11.002

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title = "Response-based selection of barley cultivars and legume species for complementarity: Root morphology and exudation in relation to nutrient source",

abstract = "Phosphorus (P) and nitrogen (N) use efficiency may be improved through increased biodiversity in agroecosystems. Phenotypic variation in plants' response to nutrient deficiency may influence positive complementarity in intercropping systems. A multicomponent screening approach was used to assess the influence of P supply and N source on the phenotypic plasticity of nutrient foraging traits in barley (H. vulgare L.) and legume species. Root morphology and exudation were determined in six plant nutrient treatments. A clear divergence in the response of barley and legumes to the nutrient treatments was observed. Root morphology varied most among legumes, whereas exudate citrate and phytase activity were most variable in barley. Changes in root morphology were minimized in plants provided with ammonium in comparison to nitrate but increased under P deficiency. Exudate phytase activity and pH varied with legume species, whereas citrate efflux, specific root length, and root diameter lengths were more variable among barley cultivars. Three legume species and four barley cultivars were identified as the most responsive to P deficiency and the most contrasting of the cultivars and species tested. Phenotypic response to nutrient availability may be a promising approach for the selection of plant combinations for minimal input cropping systems.",

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note = "Funding Information: We would like to thank the reviewers for their feedback and Helen Watson , Fiona Sturgeon , and Susan McIntyre for analytical support (James Hutton Institute, Aberdeen, Scotland UK). Funding: This work was supported by the BBSRC [responsive mode grant BBK0170471]. Publisher Copyright: {\textcopyright} 2016 Elsevier Ireland Ltd",

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doi = "10.1016/j.plantsci.2016.11.002",

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T1 - Response-based selection of barley cultivars and legume species for complementarity

T2 - Root morphology and exudation in relation to nutrient source

AU - Giles, Courtney D

AU - Brown, Lawrie K

AU - Adu, Michael O

AU - Mezeli, Malika M

AU - Sandral, Graeme A

AU - Simpson, Richard J

AU - Wendler, Renate

AU - Shand, Charles A

AU - Menezes-Blackburn, Daniel

AU - Darch, Tegan

AU - Stutter, Marc I

AU - Lumsdon, David G

AU - Zhang, Hao

AU - Blackwell, Martin S A

AU - Wearing, Catherine

AU - Cooper, Patricia

AU - Haygarth, Philip M

AU - George, Timothy S

N1 - Funding Information: We would like to thank the reviewers for their feedback and Helen Watson , Fiona Sturgeon , and Susan McIntyre for analytical support (James Hutton Institute, Aberdeen, Scotland UK). Funding: This work was supported by the BBSRC [responsive mode grant BBK0170471]. Publisher Copyright: © 2016 Elsevier Ireland Ltd

PY - 2017/2/1

Y1 - 2017/2/1

N2 - Phosphorus (P) and nitrogen (N) use efficiency may be improved through increased biodiversity in agroecosystems. Phenotypic variation in plants' response to nutrient deficiency may influence positive complementarity in intercropping systems. A multicomponent screening approach was used to assess the influence of P supply and N source on the phenotypic plasticity of nutrient foraging traits in barley (H. vulgare L.) and legume species. Root morphology and exudation were determined in six plant nutrient treatments. A clear divergence in the response of barley and legumes to the nutrient treatments was observed. Root morphology varied most among legumes, whereas exudate citrate and phytase activity were most variable in barley. Changes in root morphology were minimized in plants provided with ammonium in comparison to nitrate but increased under P deficiency. Exudate phytase activity and pH varied with legume species, whereas citrate efflux, specific root length, and root diameter lengths were more variable among barley cultivars. Three legume species and four barley cultivars were identified as the most responsive to P deficiency and the most contrasting of the cultivars and species tested. Phenotypic response to nutrient availability may be a promising approach for the selection of plant combinations for minimal input cropping systems.

AB - Phosphorus (P) and nitrogen (N) use efficiency may be improved through increased biodiversity in agroecosystems. Phenotypic variation in plants' response to nutrient deficiency may influence positive complementarity in intercropping systems. A multicomponent screening approach was used to assess the influence of P supply and N source on the phenotypic plasticity of nutrient foraging traits in barley (H. vulgare L.) and legume species. Root morphology and exudation were determined in six plant nutrient treatments. A clear divergence in the response of barley and legumes to the nutrient treatments was observed. Root morphology varied most among legumes, whereas exudate citrate and phytase activity were most variable in barley. Changes in root morphology were minimized in plants provided with ammonium in comparison to nitrate but increased under P deficiency. Exudate phytase activity and pH varied with legume species, whereas citrate efflux, specific root length, and root diameter lengths were more variable among barley cultivars. Three legume species and four barley cultivars were identified as the most responsive to P deficiency and the most contrasting of the cultivars and species tested. Phenotypic response to nutrient availability may be a promising approach for the selection of plant combinations for minimal input cropping systems.

KW - 6-Phytase/metabolism

KW - Agriculture

KW - Ammonium Compounds/metabolism

KW - Biological Transport

KW - Citric Acid/metabolism

KW - Fabaceae/genetics

KW - Hordeum/genetics

KW - Hydrogen-Ion Concentration

KW - Nitrates/metabolism

KW - Nitrogen/metabolism

KW - Phenotype

KW - Phosphorus/deficiency

KW - Plant Exudates/metabolism

KW - Plant Proteins/metabolism

KW - Plant Roots/growth & development

KW - Species Specificity

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DO - 10.1016/j.plantsci.2016.11.002

M3 - Article

C2 - 28131338

AN - SCOPUS:84995584842

SN - 0168-9452

VL - 255

SP - 12

EP - 28

JO - Plant Science

JF - Plant Science

ER -

Response-based selection of barley cultivars and legume species for complementarity: Root morphology and exudation in relation to nutrient source

Abstract

Keywords

ASJC Scopus subject areas

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