Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms

Bacillus megaterium is a potential bioremediation and biocontrol agent. The accumulation of reserve polymers, such as poly-3-hydroxybutyrate (PHB), increases survival of B. megaterium in water. We used wild-type strains of this species and mutant strains deficient in PHB synthesis in soil microcosms...

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Detalles Bibliográficos
Autores principales:	Ruiz, Jimena Alicia, Méndez, Beatriz Silvia
Publicado:	1998
Materias:	Bacillus megaterium Bacterial survival Microcosms Poly-3-hydroxybutyrate Soil bacterial metabolism bioaccumulation biocontrol agent bioremediation poly(3 hydroxybutyric acid) soil microcosm strain survival
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09593993_v14_n5_p681_Lopez http://hdl.handle.net/20.500.12110/paper_09593993_v14_n5_p681_Lopez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09593993_v14_n5_p681_Lopez
record_format	dspace
spelling	paper:paper_09593993_v14_n5_p681_Lopez2025-07-30T18:32:59Z Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms Ruiz, Jimena Alicia Méndez, Beatriz Silvia Bacillus megaterium Bacterial survival Microcosms Poly-3-hydroxybutyrate Soil bacterial metabolism bioaccumulation biocontrol agent bioremediation poly(3 hydroxybutyric acid) soil microcosm strain survival Bacillus megaterium Bacillus megaterium is a potential bioremediation and biocontrol agent. The accumulation of reserve polymers, such as poly-3-hydroxybutyrate (PHB), increases survival of B. megaterium in water. We used wild-type strains of this species and mutant strains deficient in PHB synthesis in soil microcosms for testing the hypothesis that differences in survival capabilities and spore quality between strains is maintained in heterogeneous environments enriched with organic matter. No differences in survival between strains, nor a decrease in bacterial cell numbers were observed in sterile soil microcosms. In non-sterile soil, the total cell number (vegetative cells plus spores) of the PHB wild-type strain was 3.5 times higher than that of the PHB-negative mutant. We suggest that for predictive purposes, validation of survival in a variety of conditions is necessary. Fil:Ruiz, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Méndez, B.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1998 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09593993_v14_n5_p681_Lopez http://hdl.handle.net/20.500.12110/paper_09593993_v14_n5_p681_Lopez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Bacillus megaterium Bacterial survival Microcosms Poly-3-hydroxybutyrate Soil bacterial metabolism bioaccumulation biocontrol agent bioremediation poly(3 hydroxybutyric acid) soil microcosm strain survival Bacillus megaterium
spellingShingle	Bacillus megaterium Bacterial survival Microcosms Poly-3-hydroxybutyrate Soil bacterial metabolism bioaccumulation biocontrol agent bioremediation poly(3 hydroxybutyric acid) soil microcosm strain survival Bacillus megaterium Ruiz, Jimena Alicia Méndez, Beatriz Silvia Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms
topic_facet	Bacillus megaterium Bacterial survival Microcosms Poly-3-hydroxybutyrate Soil bacterial metabolism bioaccumulation biocontrol agent bioremediation poly(3 hydroxybutyric acid) soil microcosm strain survival Bacillus megaterium
description	Bacillus megaterium is a potential bioremediation and biocontrol agent. The accumulation of reserve polymers, such as poly-3-hydroxybutyrate (PHB), increases survival of B. megaterium in water. We used wild-type strains of this species and mutant strains deficient in PHB synthesis in soil microcosms for testing the hypothesis that differences in survival capabilities and spore quality between strains is maintained in heterogeneous environments enriched with organic matter. No differences in survival between strains, nor a decrease in bacterial cell numbers were observed in sterile soil microcosms. In non-sterile soil, the total cell number (vegetative cells plus spores) of the PHB wild-type strain was 3.5 times higher than that of the PHB-negative mutant. We suggest that for predictive purposes, validation of survival in a variety of conditions is necessary.
author	Ruiz, Jimena Alicia Méndez, Beatriz Silvia
author_facet	Ruiz, Jimena Alicia Méndez, Beatriz Silvia
author_sort	Ruiz, Jimena Alicia
title	Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms
title_short	Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms
title_full	Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms
title_fullStr	Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms
title_full_unstemmed	Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms
title_sort	survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms
publishDate	1998
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09593993_v14_n5_p681_Lopez http://hdl.handle.net/20.500.12110/paper_09593993_v14_n5_p681_Lopez
work_keys_str_mv	AT ruizjimenaalicia survivalofpoly3hydroxybutyrateproducingbacteriainsoilmicrocosms AT mendezbeatrizsilvia survivalofpoly3hydroxybutyrateproducingbacteriainsoilmicrocosms
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Survival of poly-3-hydroxybutyrate-producing bacteria in soil microcosms

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