Superdormant Spores of Bacillus Species Germinate Normally with High Pressure, Peptidoglycan Fragments, and Bryostatin

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منابع مشابه

Superdormant spores of bacillus species germinate normally with high pressure, peptidoglycan fragments, and bryostatin.

Superdormant spores of Bacillus cereus and Bacillus subtilis germinated just as well as dormant spores with pressures of 150 or 500 MPa and with or without heat activation. Superdormant B. subtilis spores also germinated as well as dormant spores with peptidoglycan fragments or bryostatin, a Ser/Thr protein kinase activator.

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Isolation and characterization of superdormant spores of Bacillus species.

Superdormant spores of Bacillus subtilis and Bacillus megaterium were isolated in 4 to 12% yields following germination with high nutrient levels that activated one or two germinant receptors. These superdormant spores did not germinate with the initial nutrients or those that stimulated other germinant receptors, and the superdormant spores' defect was not genetic. The superdormant spores did,...

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Superdormant spores of Bacillus species have elevated wet-heat resistance and temperature requirements for heat activation.

Purified superdormant spores of Bacillus cereus, B. megaterium, and B. subtilis isolated after optimal heat activation of dormant spores and subsequent germination with inosine, d-glucose, or l-valine, respectively, germinate very poorly with the original germinants used to remove dormant spores from spore populations, thus allowing isolation of the superdormant spores, and even with alternate ...

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Bacillus subtilis spores germinate in the chicken gastrointestinal tract.

A number of poultry probiotics contain bacterial spores. In this study, orally administered spores of Bacillus subtilis germinated in the gastrointestinal (GI) tracts of chicks. Furthermore, 20 h after spores were administered, vegetative cells outnumbered spores throughout the GI tract. This demonstrates that spore-based probiotics may function in this host through metabolically active mechani...

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Physiological responses of Bacillus amyloliquefaciens spores to high pressure.

Pressure inactivation behavior of Bacillus amyloliquefaciens spores was investigated in deionized water. The spores of B. amyloliquefaciens were subjected to 105 degrees C and 700 MPa. The magnitude of the decrease in viability after pressure treatment was similar to that after pressure treatment followed by heat shock. The increase of dipicolinic acid (DPA) release was correlated with the spor...

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ژورنال

عنوان ژورنال: Journal of Bacteriology

سال: 2010

ISSN: 0021-9193,1098-5530

DOI: 10.1128/jb.01497-09