Some characteristics of phosphate solubilizing rhizobacteria as an ecological strategy for sustainable agriculture

被引:4
作者
Aarab, S. [1 ,4 ]
Ollero, J. [2 ]
Megias, M. [3 ]
Laglaoui, A. [4 ]
Bakkali, M. [4 ]
Arakrak, A. [4 ]
机构
[1] Univ Mohamed Premier, Fac Sci & Tech Al Hoceima, Dept Biol, Ajdir 32003, Al Hoceima, Morocco
[2] Univ Seville, Fac Biol, Dept Microbiol, E-41012 Seville, Spain
[3] Univ Seville, Fac Farm, Dept Microbiol & Parasitol, Apdo Postal 874, E-41080 Seville, Spain
[4] ERBGB, Fac Sci & Tech, Tangier, Morocco
关键词
Antagonism ability; Extracellular hydrolytic enzymes; Rhizobacteria; P solubilization; (PGP) traits; Siderophores; PLANT-GROWTH PROMOTION; BACTERIA; ACID; SOIL; RHIZOSPHERE; EMERGENCE;
D O I
10.1016/j.matpr.2019.04.091
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
With the aim to select rhizobacteria exhibiting several plant growth promoting traits, 5 isolates were evaluated. Phosphate (P) solubilization halos were between 0.4 and 0.9 cm, and P concentrations ranged between 66.83 and 339.39 mg l(-1), accompanied by media pH decrease. Three isolates, PP14, PP17, and RL90, synthesized indole acetic acid, while PE66 and PE85 could hydrolyze ACC. All isolates produced siderophores and hydrogen cyanide except RL90 and PP17. For extracellular hydrolytic enzymes production, RL90 was positive for cellulase and protease. All isolates suppressed at less one phytopathogenic fungus growth, while the best bacterial phytopathogens inhibition was obtained for PE85. (C) 2019 Elsevier Ltd. All rights reserved.
引用
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页码:1224 / 1228
页数:5
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