Abstract
Laboratory experiment was conducted to isolate and select the most efficient bacterial and fungal isolates in rock phosphate solubilization in culture medium. Results showed that bacterial isolates exhibited a different efficiencies in their ability to solubilize rock phosphate. Bacillus subtilis and Pseudomonas fluorescence were the greatest efficient among other bacterial isolates tested (14 isolates) in their acids production and decreasing medium pH value which droped to 5.35 and 5.2 and increasing in available phosphorous to 50 and 56 mg P. L-1 after 24 days incubation respectively. The correlation coefficient (R2) between incubation time and pH value were 0.65 and 0.59 while the correlation between pH value and available phosphorous were high reached 0.98 in both bacterias. Results also showed that fungal isolates which related to the genera Alternaria and Aspergillus were the greatest efficient among other fungal isolates tested (14 isolates) in their acid production and decreasing pH value , which droped to 4.7 and 3.35 with increasing in available phosphorous to 77.7 and 118.3 mg P. L-1 after 24 days incubation respectively. The correlation coefficient between incubation time and pH value were 0.33 and 0.6 while the correlation between pH value and available phosphorous were 0.65 and 0.45 respectively .
Highlights
Results showed that fungal isolates which related to the genera Alternaria and Aspergillus were the greatest efficient among other fungal isolates tested (14 isolates) in their acid production and decreasing pH value, which droped to 4.7 and 3.35 with increasing in available phosphorous to 77.7 and 118.3 mg P
In vitro solubilization of inorganic phosphate by phosphate solubilizing microorganisms (PSM) from maize rhizosphere
Summary
Between incubation time and pH value were 0.65 and 0.59 while the correlation between pH value and available phosphorous were high reached 0.98 in both bacterias.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
