Effect of poly(3-hydroxybutyrate) (PHB) content on the starvation-survival of bacteria in natural waters
The effect of poly(3-hydroxybutyrate) (PHB) content on the survival of wild-type strains and PHB negative mutants of Bacillus megaterium and Alcaligenes eutrophus in natural waters was studied. The survival strategy of B. megaterium was dominated by the development of resistant forms, but the number...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_01686496_v16_n2_p95_Lopez |
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todo:paper_01686496_v16_n2_p95_Lopez2023-10-03T15:06:36Z Effect of poly(3-hydroxybutyrate) (PHB) content on the starvation-survival of bacteria in natural waters Lopez, N.I. Floccari, M.E. Steinbuchel, A. Garcia, A.F. Mendez, B.S. Environmental survival Poly(3-hydroxybutyrate) mutant Spore germination poly(3 hydroxybutyric acid) article Bacillus megaterium controlled study nonhuman priority journal spore germination survival Wautersia eutropha Alcaligenes Bacillus megaterium Wautersia eutropha The effect of poly(3-hydroxybutyrate) (PHB) content on the survival of wild-type strains and PHB negative mutants of Bacillus megaterium and Alcaligenes eutrophus in natural waters was studied. The survival strategy of B. megaterium was dominated by the development of resistant forms, but the number of the wild-type vegetative cells was higher than that of PHB mutant strain. In some environmental conditions the mutant spores needed a heat shock for germination, a fact that suggests, for the first time, that PHB plays a role in this phenomenon. Survival of A. eutrophus wild-type strain in all experiments was higher compared to the PHB mutant, and differences were significant. In raw river water, survival of both species was lower than in sterile river water. © 1995. Fil:Floccari, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Garcia, A.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mendez, B.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01686496_v16_n2_p95_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 |
Environmental survival Poly(3-hydroxybutyrate) mutant Spore germination poly(3 hydroxybutyric acid) article Bacillus megaterium controlled study nonhuman priority journal spore germination survival Wautersia eutropha Alcaligenes Bacillus megaterium Wautersia eutropha |
| spellingShingle |
Environmental survival Poly(3-hydroxybutyrate) mutant Spore germination poly(3 hydroxybutyric acid) article Bacillus megaterium controlled study nonhuman priority journal spore germination survival Wautersia eutropha Alcaligenes Bacillus megaterium Wautersia eutropha Lopez, N.I. Floccari, M.E. Steinbuchel, A. Garcia, A.F. Mendez, B.S. Effect of poly(3-hydroxybutyrate) (PHB) content on the starvation-survival of bacteria in natural waters |
| topic_facet |
Environmental survival Poly(3-hydroxybutyrate) mutant Spore germination poly(3 hydroxybutyric acid) article Bacillus megaterium controlled study nonhuman priority journal spore germination survival Wautersia eutropha Alcaligenes Bacillus megaterium Wautersia eutropha |
| description |
The effect of poly(3-hydroxybutyrate) (PHB) content on the survival of wild-type strains and PHB negative mutants of Bacillus megaterium and Alcaligenes eutrophus in natural waters was studied. The survival strategy of B. megaterium was dominated by the development of resistant forms, but the number of the wild-type vegetative cells was higher than that of PHB mutant strain. In some environmental conditions the mutant spores needed a heat shock for germination, a fact that suggests, for the first time, that PHB plays a role in this phenomenon. Survival of A. eutrophus wild-type strain in all experiments was higher compared to the PHB mutant, and differences were significant. In raw river water, survival of both species was lower than in sterile river water. © 1995. |
| format |
JOUR |
| author |
Lopez, N.I. Floccari, M.E. Steinbuchel, A. Garcia, A.F. Mendez, B.S. |
| author_facet |
Lopez, N.I. Floccari, M.E. Steinbuchel, A. Garcia, A.F. Mendez, B.S. |
| author_sort |
Lopez, N.I. |
| title |
Effect of poly(3-hydroxybutyrate) (PHB) content on the starvation-survival of bacteria in natural waters |
| title_short |
Effect of poly(3-hydroxybutyrate) (PHB) content on the starvation-survival of bacteria in natural waters |
| title_full |
Effect of poly(3-hydroxybutyrate) (PHB) content on the starvation-survival of bacteria in natural waters |
| title_fullStr |
Effect of poly(3-hydroxybutyrate) (PHB) content on the starvation-survival of bacteria in natural waters |
| title_full_unstemmed |
Effect of poly(3-hydroxybutyrate) (PHB) content on the starvation-survival of bacteria in natural waters |
| title_sort |
effect of poly(3-hydroxybutyrate) (phb) content on the starvation-survival of bacteria in natural waters |
| url |
http://hdl.handle.net/20.500.12110/paper_01686496_v16_n2_p95_Lopez |
| work_keys_str_mv |
AT lopezni effectofpoly3hydroxybutyratephbcontentonthestarvationsurvivalofbacteriainnaturalwaters AT floccarime effectofpoly3hydroxybutyratephbcontentonthestarvationsurvivalofbacteriainnaturalwaters AT steinbuchela effectofpoly3hydroxybutyratephbcontentonthestarvationsurvivalofbacteriainnaturalwaters AT garciaaf effectofpoly3hydroxybutyratephbcontentonthestarvationsurvivalofbacteriainnaturalwaters AT mendezbs effectofpoly3hydroxybutyratephbcontentonthestarvationsurvivalofbacteriainnaturalwaters |
| _version_ |
1807314952827961344 |