Preliminary Characterization of the First Phosphate Solubilizing Bacteria Isolated From the Rhizospheric Soil of the Jujube Plant Ziziphus

9 Pages Posted: 26 May 2020

See all articles by Nidal Fahsi

Nidal Fahsi

Mohammed VI Polytechnic University

Ismail Mahdi

Mohammed VI Polytechnic University

Abdelhalem Mesfioui

Ibn Tofail University

Mohamed Hafidi

University Cadi Ayyad

Latefa Biskri

Mohammed VI Polytechnic University

Abdelmounaaim Allaoui

Mohammed VI Polytechnic University (UM6P)

Date Written: May 25, 2020

Abstract

The use of rhizobacteria that solubilize inorganic phosphates as biofertilizers is considered as a suitable solution for sustainable agriculture. Only limited number of studies have been carried out on the jujube plant Ziziphus, which is frequently encountered the Mediterranean basin, particularly in North Africa. Here, we conducted the first study on jujube to characterize the native phosphate solubilizing bacteria (PSB) from its rhizospheric soil. jujube was selected because of its ability to survive within arid climates by tolerating biotic and abiotic stresses. A total of 41 rhizobacteria isolated from rhizospheric jujube collected from the experimental farm of Benguerir (Morocco) were able to solubilize tri-calcium phosphate (TCP) on NBRIP agar. Next, thirteen of the best performing isolates were subsequently tested for phosphate solubilization in liquid media and for antibiotics resistance. Eleven exhibit a great ability to release soluble phosphate from TCP with ranged concentrations between minima at 160 mg/L and maxima at 260 mg/L. Moreover, several PSB strains confer resistance at least to one of the tested antibiotics. Analysis of 16S rDNA sequencing demonstrated that PSB isolates were closely related to the genus Pseudomonas, Bacillus, Enterobacter, or Paenibacillus.

Keywords: jujube Ziziphus, Biofertilizers, Rhizobacteria, Phosphate Solubilizing Bacteria (PSB), PGPR, 16SrRNA, antibiotics

Suggested Citation

Fahsi, Nidal and Mahdi, Ismail and Mesfioui, Abdelhalem and Hafidi, Mohamed and Biskri, Latefa and Allaoui, Abdelmounaaim, Preliminary Characterization of the First Phosphate Solubilizing Bacteria Isolated From the Rhizospheric Soil of the Jujube Plant Ziziphus (May 25, 2020). SYMPHOS 2019 – 5th International Symposium on Innovation & Technology in the Phosphate Industry, Available at SSRN: https://ssrn.com/abstract=3609842 or http://dx.doi.org/10.2139/ssrn.3609842

Nidal Fahsi

Mohammed VI Polytechnic University ( email )

Lot 660, Hay Moulay Rachid
Ben Guerir, 43150
Morocco

Ismail Mahdi

Mohammed VI Polytechnic University ( email )

Lot 660, Hay Moulay Rachid
Ben Guerir, 43150
Morocco

Abdelhalem Mesfioui

Ibn Tofail University ( email )

Fsjes kénitra
Campus universitaire Maamora BP 2010 Kénitra
Morocco

Mohamed Hafidi

University Cadi Ayyad ( email )

Marrakech
Morocco

Latefa Biskri

Mohammed VI Polytechnic University ( email )

Lot 660, Hay Moulay Rachid
Ben Guerir, 43150
Morocco

Abdelmounaaim Allaoui (Contact Author)

Mohammed VI Polytechnic University (UM6P) ( email )

Lot 660, Hay Moulay Rachid
Benguérir, MO Rhamna 41130
Morocco
+212-5-25072926 (Phone)

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