Rock Phosphate (RP) is theoretically the cheapest fertilizer and most abundant, but its direct application in the soils is not always agronomically effective due to its low phosphorus (P) availability. An environmentally friendly and economically alternative to traditional processing of these deposits is the use of Phosphate Solubilising Microorganisms (PSM). Three Penicillium strains were screened for their aptitude in solubilising sparingly soluble phosphates as well as phosphate rock on plates and in broth supplemented with the different phosphate types. The three strains show the ability in solubilising at least two from the sparingly soluble phosphates types, with the solubilisation index (SI) varying from 1.44 to 4.74. All the strains were able to show halo zone on plates supplemented with Malian and Algerian rock phosphates with solubilisation index ranging from 1.2 to 1.8. No halo zone was detected on plates with Moroccan rock phosphate as sole phosphate source. However, significant amount of phosphorus were mobilised by all strains in broth with the different rock phosphates, including the Moroccan rock phosphate. The amount of solved P varied from 257.46 mgP.L-1 (Penicillium sp. 43) to 326.65 mgP.L-1 (Penicillium sp. 109) for Malian rock phosphate, from 152.61 mgP.L-1 (Penicillium sp. 43) to 337.56 mgP.L-1 (Penicillium sp. 27) for Algerian rock phosphate, and from 283.79 mgP.L-1 (Penicillium sp. 43) to 347.16 mgP.L-1 (Penicillium sp. 109) for Moroccan rock phosphate. The rock phosphate solubilisation was associated with pH media drop and both parameters were strongly correlated.
Published in | American Journal of Agriculture and Forestry (Volume 2, Issue 2) |
DOI | 10.11648/j.ajaf.20140202.12 |
Page(s) | 25-32 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2014. Published by Science Publishing Group |
Penicillium Spp, Rock Phosphates, Fixed Phosphates, Phosphate Solubilisation
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APA Style
Fankem Henri, Ngo Nkot Laurette, Nguesseu Njanjouo Ghislain, Tchuisseu Tchakounte Gylaine Vanessa, Tchiazé Ifoué Alice Virginie, et al. (2014). Rock Phosphate Solubilisation by Strains of Penicillium Spp. Isolated from Farm and Forest Soils of three Agro Ecological Zones of Cameroon. American Journal of Agriculture and Forestry, 2(2), 25-32. https://doi.org/10.11648/j.ajaf.20140202.12
ACS Style
Fankem Henri; Ngo Nkot Laurette; Nguesseu Njanjouo Ghislain; Tchuisseu Tchakounte Gylaine Vanessa; Tchiazé Ifoué Alice Virginie, et al. Rock Phosphate Solubilisation by Strains of Penicillium Spp. Isolated from Farm and Forest Soils of three Agro Ecological Zones of Cameroon. Am. J. Agric. For. 2014, 2(2), 25-32. doi: 10.11648/j.ajaf.20140202.12
AMA Style
Fankem Henri, Ngo Nkot Laurette, Nguesseu Njanjouo Ghislain, Tchuisseu Tchakounte Gylaine Vanessa, Tchiazé Ifoué Alice Virginie, et al. Rock Phosphate Solubilisation by Strains of Penicillium Spp. Isolated from Farm and Forest Soils of three Agro Ecological Zones of Cameroon. Am J Agric For. 2014;2(2):25-32. doi: 10.11648/j.ajaf.20140202.12
@article{10.11648/j.ajaf.20140202.12, author = {Fankem Henri and Ngo Nkot Laurette and Nguesseu Njanjouo Ghislain and Tchuisseu Tchakounte Gylaine Vanessa and Tchiazé Ifoué Alice Virginie and Nwaga Dieudonné}, title = {Rock Phosphate Solubilisation by Strains of Penicillium Spp. Isolated from Farm and Forest Soils of three Agro Ecological Zones of Cameroon}, journal = {American Journal of Agriculture and Forestry}, volume = {2}, number = {2}, pages = {25-32}, doi = {10.11648/j.ajaf.20140202.12}, url = {https://doi.org/10.11648/j.ajaf.20140202.12}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajaf.20140202.12}, abstract = {Rock Phosphate (RP) is theoretically the cheapest fertilizer and most abundant, but its direct application in the soils is not always agronomically effective due to its low phosphorus (P) availability. An environmentally friendly and economically alternative to traditional processing of these deposits is the use of Phosphate Solubilising Microorganisms (PSM). Three Penicillium strains were screened for their aptitude in solubilising sparingly soluble phosphates as well as phosphate rock on plates and in broth supplemented with the different phosphate types. The three strains show the ability in solubilising at least two from the sparingly soluble phosphates types, with the solubilisation index (SI) varying from 1.44 to 4.74. All the strains were able to show halo zone on plates supplemented with Malian and Algerian rock phosphates with solubilisation index ranging from 1.2 to 1.8. No halo zone was detected on plates with Moroccan rock phosphate as sole phosphate source. However, significant amount of phosphorus were mobilised by all strains in broth with the different rock phosphates, including the Moroccan rock phosphate. The amount of solved P varied from 257.46 mgP.L-1 (Penicillium sp. 43) to 326.65 mgP.L-1 (Penicillium sp. 109) for Malian rock phosphate, from 152.61 mgP.L-1 (Penicillium sp. 43) to 337.56 mgP.L-1 (Penicillium sp. 27) for Algerian rock phosphate, and from 283.79 mgP.L-1 (Penicillium sp. 43) to 347.16 mgP.L-1 (Penicillium sp. 109) for Moroccan rock phosphate. The rock phosphate solubilisation was associated with pH media drop and both parameters were strongly correlated.}, year = {2014} }
TY - JOUR T1 - Rock Phosphate Solubilisation by Strains of Penicillium Spp. Isolated from Farm and Forest Soils of three Agro Ecological Zones of Cameroon AU - Fankem Henri AU - Ngo Nkot Laurette AU - Nguesseu Njanjouo Ghislain AU - Tchuisseu Tchakounte Gylaine Vanessa AU - Tchiazé Ifoué Alice Virginie AU - Nwaga Dieudonné Y1 - 2014/02/28 PY - 2014 N1 - https://doi.org/10.11648/j.ajaf.20140202.12 DO - 10.11648/j.ajaf.20140202.12 T2 - American Journal of Agriculture and Forestry JF - American Journal of Agriculture and Forestry JO - American Journal of Agriculture and Forestry SP - 25 EP - 32 PB - Science Publishing Group SN - 2330-8591 UR - https://doi.org/10.11648/j.ajaf.20140202.12 AB - Rock Phosphate (RP) is theoretically the cheapest fertilizer and most abundant, but its direct application in the soils is not always agronomically effective due to its low phosphorus (P) availability. An environmentally friendly and economically alternative to traditional processing of these deposits is the use of Phosphate Solubilising Microorganisms (PSM). Three Penicillium strains were screened for their aptitude in solubilising sparingly soluble phosphates as well as phosphate rock on plates and in broth supplemented with the different phosphate types. The three strains show the ability in solubilising at least two from the sparingly soluble phosphates types, with the solubilisation index (SI) varying from 1.44 to 4.74. All the strains were able to show halo zone on plates supplemented with Malian and Algerian rock phosphates with solubilisation index ranging from 1.2 to 1.8. No halo zone was detected on plates with Moroccan rock phosphate as sole phosphate source. However, significant amount of phosphorus were mobilised by all strains in broth with the different rock phosphates, including the Moroccan rock phosphate. The amount of solved P varied from 257.46 mgP.L-1 (Penicillium sp. 43) to 326.65 mgP.L-1 (Penicillium sp. 109) for Malian rock phosphate, from 152.61 mgP.L-1 (Penicillium sp. 43) to 337.56 mgP.L-1 (Penicillium sp. 27) for Algerian rock phosphate, and from 283.79 mgP.L-1 (Penicillium sp. 43) to 347.16 mgP.L-1 (Penicillium sp. 109) for Moroccan rock phosphate. The rock phosphate solubilisation was associated with pH media drop and both parameters were strongly correlated. VL - 2 IS - 2 ER -