ISSN:
1573-0972
Keywords:
Aspergillus niger
;
Glomus deserticola
;
olive cake
;
rock phosphate
;
solubilization
;
plant growth
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Abstract A citric acid-producing strain of Aspergillus niger, grown on olive cake-based medium, was able to solubilize rock phosphate. Solubilization of insoluble phosphate increased during the solid-state fermentation process, reaching a maximum of 164μg/ml. Various combinations of olive cake and rock phosphate, previously treated or untreated by the fungus, were introduced into a calcareous, phosphorus (P)-deficient soil to improve the growth of Trifolium repens in a greenhouse experiment. Synergistic action of both the filamentous and arbuscular fungi caused considerable improvement of growth and plant P uptake. Greater growth and P uptake of mycorrhizal and non-mycorrhizal plants were achieved when microbe-treated olive cake and rock phosphate were applied to soil compared with all other treatments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1008858802855
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