Article (Scientific journals)
Integrated use of polyphosphate and P-solubilizing bacteria enhanced P use efficiency and growth performance of durum wheat.
Khourchi, Said; Elhaissoufi, Wissal; Ibnyasser, Ammar et al.
2023In Frontiers in Microbiology, 14, p. 1211397
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Keywords :
P use efficiency; chlorophyll fluorescence; phosphatases; phosphate solubilizing bacteria; polyphosphates; rhizosphere; Microbiology; Microbiology (medical)
Abstract :
[en] Coupling phosphate-solubilizing bacteria (PSB) with P fertilizers, including polyphosphates (PolyP), was reported as eco-efficient approach to enhance P use efficiency. Although PSB have been recently reported to hydrolyze PolyP, the plant growth promoting mechanisms of PolyP-PSB co-application were not yet uncovered. This study aims to evaluate the effect of a PSB consortium (PSBCs) on growth, P use efficiency (PUE), and wheat yield parameters under PolyP (PolyB) application. Co-application of PolyB-PSBCs significantly enhanced wheat growth at 75 days after sowing (DAS) compared to 30 DAS. A significant increase in shoot dry biomass (47%), shoot inorganic P content (222%), PUE (91%), and root P absorption efficiency (RPAE, 99%) was noted compared to unfertilized plants. Similarly, the PolyB-PSBCs co-application enhanced morphological root traits at 30 DAS, while acid phosphatase activities (root and rhizosphere), RPAE, and PUE were significantly increased at 75 DAS. The improved wheat P acquisition could be attributed to a lower investment in root biomass production, and significant induction of acid phosphatase activity in roots and rhizosphere soil under PolyB-PSBCs co-application. Consequently, the PolyB-PSBCs co-application significantly improved aboveground performance, which is reflected by increased shoot nutrient contents (P 300%, K 65%), dry weight (54%), and number (50%) of spikes. Altogether, this study provides relevant evidence that co-application of PolyP-PSBCs can be an integrated and environmentally preferred P fertilization approach owing to the dual effects of PolyP and PSBCs on wheat PUE.
Disciplines :
Agriculture & agronomy
Author, co-author :
Khourchi, Said  ;  Université de Liège - ULiège > TERRA Research Centre ; Agrobiosciences Program, College for Sustainable Agriculture and Environmental Sciences, , Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
Elhaissoufi, Wissal;  Agrobiosciences Program, College for Sustainable Agriculture and Environmental Sciences, , Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
Ibnyasser, Ammar;  Agrobiosciences Program, College for Sustainable Agriculture and Environmental Sciences, , Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
Haddine, Meryem;  Agrobiosciences Program, College for Sustainable Agriculture and Environmental Sciences, , Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
Ghani, Rachid;  Agrobiosciences Program, College for Sustainable Agriculture and Environmental Sciences, , Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
Zeroual, Youssef;  Situation Innovation, OCP Group, Jorf Lasfar, El Jadida, Morocco
Delaplace, Pierre  ;  Université de Liège - ULiège > TERRA Research Centre > Plant Sciences
Bargaz, Adnane;  Agrobiosciences Program, College for Sustainable Agriculture and Environmental Sciences, , Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
Language :
English
Title :
Integrated use of polyphosphate and P-solubilizing bacteria enhanced P use efficiency and growth performance of durum wheat.
Publication date :
2023
Journal title :
Frontiers in Microbiology
eISSN :
1664-302X
Publisher :
Frontiers Media SA, Switzerland
Volume :
14
Pages :
1211397
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
The SoilPhorLife Program sponsors (grant ID SoilPhorLife N°5); namely OCP Group and Prayon, are greatly acknowledged for funding this study.
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