The acquisition of phosphorus byLupinus albus L.

Gardner, W. K.; Barber, D. A.; Parbery, D. G.

doi:10.1007/bf02374754

Cited by 456 publications

(32 citation statements)

References 26 publications

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“…Roots grown under P-deficient conditions secrete acid phosphatase (APase) to release inorganic phosphate (Pi) from organic compounds, and organic acids to release Pi from insoluble inorganic phosphate compounds [3,4]. Several genes related to low P adaptation have been isolated.…”

Section: Introductionmentioning

confidence: 99%

“…To increase root surface area, the diameter of main roots is decreased and the number of root hairs is increased [10]. Proteaceae and lupin plants develop bottle-brush like clustered roots, known as 'cluster roots' or 'proteoid roots', under P deficient conditions [3,[11][12][13]. The function of these roots is not only to increase root surface area, but also to stimulate vigorous inorganic phosphate liberation from unavailable forms by secretion of APase and organic acids, and overexpression of Pi transporters [7,14,15].…”

Section: Introductionmentioning

confidence: 99%

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Metabolic alterations proposed by proteome in rice roots grown under low P and high Al concentration under low pH

et al. 2007

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Growth inhibition caused by acid soils, especially due to P deficiency and Al stress, is a serious problem for crop production. To comprehend the adaptation mechanisms of rice plants to P deficiency and Al stress conditions, a proteomic analysis of rice roots in hydroponic cultivation was demonstrated. 464 detectable proteins spots were separated by 2D-PAGE. 56 of 94 spots selected at random were identified by peptide mass fingerprinting. In general, the proteomic alterations under P deficiency and Al stress conditions were similar trend, indicating that a common metabolic system is responsive to both P deficiency and Al stress. An increase in nucleotide monomer synthesis was indicated from the related proteomic alterations, which mediate the reversible reactions of the triose phosphate/pentose phosphate pool, and the oxidative reactions of the pentose phosphate pathway under both stress conditions. Carbon flow to the TCA cycle and N assimilation were altered in proteomic level. The changes could be contributed to the complementation of TCA components from suppression of photosynthates partitioning from leaves, and partly contribute to organic acid secretion. Induction of S-adenosylmethionine (SAM) synthetase is a significant and unique response to Al stress, suggesting that SAM is related to ethylene-mediated inhibition of root growth and/ or the alteration of cell wall structures and polymers in roots.Abbreviations: ACC, 1-aminocyclopropane-1-carboxylic acid; ADK, adenosine kinase; 2D-PAGE, 2 dimensional polyacrylamide gel electrophoresis; DTT, dithiothreitol; PEPC, phosphoenolpyruvate carboxylase; Pi, inorganic phosphate; PMF, peptide mass fingerprinting; SAH, S-adenosyl-L-homocysteine; SAM, S-adenosylmethionine.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metabolic alterations proposed by proteome in rice roots grown under low P and high Al concentration under low pH

et al. 2007

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“…One of these non-mycorrhizal, cluster-root producing plants, is white lupin (Lupinus albus (L.)). White lupin's ability to grow on soils where P is present in sparingly soluble forms has been studied intensively for the last 20 years (Gardner et al 1982(Gardner et al , 1983Neumann et al 1999;Shane et al 2003;Shen et al 2005;Weisskopf et al 2005Weisskopf et al , 2006a. Furthermore, as a leguminous plant, white lupin has the ability to enrich the soil in nitrogen (N) through symbiotic fixation.…”

Section: Introductionmentioning

confidence: 99%

White lupin leads to increased maize yield through a soil fertility-independent mechanism: a new candidate for fighting Striga hermonthica infestation?

et al. 2008

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Nitrogen (N)-deficiency and lack of phosphorus (P) availability are major constraints to maize yields in Western Kenya. In a two-season field study in the lake Victoria basin, we tested the capacity of white lupin (Lupinus albus (L.), cv. Ultra), as a nitrogenfixing crop with a highly efficient P-acquisition capacity, to increase maize yields when used as a companion or cover crop, or as a source of organic matter. Each experiment was performed on three different fields (Vertisols) differing in N/P availability, previous cropping history and in levels of infestation by the parasitic weed Striga hermonthica (Del.) Benth. Our results show that white lupin led to significantly higher yields of maize when used as a cover crop. When lupin was grown as a companion crop, it also slightly enhanced the yield of the co-cultivated maize. When lupin shoots were incorporated to the soil, the positive effect of lupin on maize growth was field-dependent and only occurred in the field most heavily infested with S. hermonthica. Despite the beneficial impact on maize yield, no clear effect of lupin on soil N and P availability or on maize N/P uptake were observed. In contrast, lupin significantly inhibited infestation of maize by S. hermonthica: when lupin was grown together with maize in pots inoculated with S. hermonthica, the emergence of the weed was strongly reduced compared to the pots with maize only. This work opens a new range of questions for further research on white lupin and its potential beneficial impact as a S. hermonthica-inhibiting crop.

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“…Smith (1969) (Smith 1969) and has been shown to be a significant component in some species with proteoid roots (Gardner et al 1983).…”

Section: Rt2mentioning

confidence: 99%

Residual Phosphorus Solubility for an Acid, Clayey, Forested Soil in the Presence of Oxalate and Citrate

Comerford¹,

Skinner²

1989

Can. J. Soil. Sci.

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The acquisition of phosphorus byLupinus albus L.

Cited by 456 publications

References 26 publications

Metabolic alterations proposed by proteome in rice roots grown under low P and high Al concentration under low pH

Metabolic alterations proposed by proteome in rice roots grown under low P and high Al concentration under low pH

White lupin leads to increased maize yield through a soil fertility-independent mechanism: a new candidate for fighting Striga hermonthica infestation?

Residual Phosphorus Solubility for an Acid, Clayey, Forested Soil in the Presence of Oxalate and Citrate

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