Articles

IMMOBILIZATION OF BACILLUS SP. IN HYDROPHILIC FOAM FOR USE IN TOMATO SEEDLINGS UNDER SALINE STRESS

Article number
938_55
Pages
423 – 429
Language
English
Abstract
Bacillus sp. was immobilized in polyurethane hydrophilic biodegradable foams (PBF). The objective was verifying the PBF usefulness as vehicle for beneficial bacteria in seedlings for transplanting.
The strains of Bacillus sp. were collected in north Mexico.
The strains showed in vitro antagonism against Fusarium oxysporum. The immobilized bacteria were experimentally tested in greenhouse on tomato seedlings subjected to biotic and abiotic stress.
The stress treatments were (1) Fusarium oxysporum, (2) application of NaCl 250 milimolar, and (3) the combination of both Fusarium + NaCl.
The stress treatments were carried out in presence and absence of individual strains or mixtures of strains of Bacillus sp. immobilized in the PBF. The mixtures of strains, but not the individual strains, had a positive effect on the seedling growth with NaCl or without it.
We concluded that the mixture of strains of antagonistic Bacillus sp. induced biotic and abiotic stress tolerance in seedlings.

Publication
Authors
A. Benavides-Mendoza, H. Ortega-Ortiz, G. Padrón-Gamboa, H. Ramírez, A. Flores-Olivas, L. Ibarra-Jiménez
Keywords
systemic resistance, salinity, rhizobacteria
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