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Agriculture 2012, 2(2), 139-153; doi:10.3390/agriculture2020139
Article

Low Soil Phosphorus Availability Increases Acid Phosphatases Activities and Affects P Partitioning in Nodules, Seeds and Rhizosphere of Phaseolus vulgaris

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Received: 9 April 2012; in revised form: 5 June 2012 / Accepted: 6 June 2012 / Published: 13 June 2012
(This article belongs to the Special Issue Soil Biology and Its Importance in Soil Fertility)
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Abstract: The effect of phosphorus (P) deficiency on phosphatases activities in N2-fixing legumes has been widely studied in hydroponic culture. However, the response of acid phosphatase (APase) and phytase in rhizosphere, nodules and seeds of Phaseolus vulgaris to low soil’s P-availability is not yet fully understood. In this study, six genotypes of N2-fixing P. vulgaris were grown under contrasting soil P-availabilities; i.e., low (4.3 mg P kg−1) and sufficient (16.7 mg P kg−1) in the Haouz region of Morocco. At flowering and maturity stages, plants were harvested and analyzed for their phosphatases activities, growth and P content. Results show that, low P decreased nodulation, growth, P uptake and N accumulation in all the genotypes, but to a greater extent in the sensitive recombinant inbreed line 147. In addition, while seed P content was slightly reduced under low P soil; a higher P was noticed in the Flamingo and Contender large seeded-beans (6.15 to 7.11 mg g−1). In these latter genotypes, high APase and phytase activities in seeds and nodules were associated with a significant decline in rhizosphere’s available P. APase activity was mainly stimulated in nodules, whereas phytase activity was highly induced in seeds (77%). In conclusion, the variations of APase and phytase activities in nodules and seeds depend on genotype and can greatly influence the internal utilization of P, which might result in low P soil tolerance in N2-fixing legumes.
Keywords: acid phosphatases; nodules; phytase; low P soil; Phaseolus vulgaris; seeds acid phosphatases; nodules; phytase; low P soil; Phaseolus vulgaris; seeds
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Bargaz, A.; Faghire, M.; Abdi, N.; Farissi, M.; Sifi, B.; Drevon, J.-J.; Cherkaoui Ikbal, M.; Ghoulam, C. Low Soil Phosphorus Availability Increases Acid Phosphatases Activities and Affects P Partitioning in Nodules, Seeds and Rhizosphere of Phaseolus vulgaris. Agriculture 2012, 2, 139-153.

AMA Style

Bargaz A, Faghire M, Abdi N, Farissi M, Sifi B, Drevon J-J, Cherkaoui Ikbal M, Ghoulam C. Low Soil Phosphorus Availability Increases Acid Phosphatases Activities and Affects P Partitioning in Nodules, Seeds and Rhizosphere of Phaseolus vulgaris. Agriculture. 2012; 2(2):139-153.

Chicago/Turabian Style

Bargaz, Adnane; Faghire, Mustapha; Abdi, Neila; Farissi, Mohamed; Sifi, Bouaziz; Drevon, Jean-Jacques; Cherkaoui Ikbal, Mohamed; Ghoulam, Cherki. 2012. "Low Soil Phosphorus Availability Increases Acid Phosphatases Activities and Affects P Partitioning in Nodules, Seeds and Rhizosphere of Phaseolus vulgaris." Agriculture 2, no. 2: 139-153.

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