Results 31 to 40 of about 126,197 (320)
The Cretaceous-Paleogene (K-Pg) boundary Chicxulub impact is supposed to have produced a nearly decade-long impact winter which resulted in a mass-extinction event among dicot angiosperms but which left pteridophytes comparatively unaffected.
KEITH BERRY
doaj +1 more source
Bacteriocins: Novel Solutions to Age Old Spore-Related Problems?
Bacteriocins are ribosomally synthesized antimicrobial peptides produced by bacteria, which have the ability to kill or inhibit other bacteria. Many bacteriocins are produced by food grade lactic acid bacteria (LAB).
Kevin eEgan+9 more
doaj +1 more source
Most bacteria can, at least to some degree, hunker down during periods of stress and wait for good times to return. No cells, however, do this as effectively as those Bacilli and Clostridia that form spores. Dormant cells produced by these bacteria can survive most environmental challenges found on earth and even a few in outer space and can remain ...
openaire +3 more sources
Respiratory syncytial virus (RSV) is a major pathogen that infects lower respiratory tract and causes a common respiratory disease. Despite serious pathological consequences with this virus, effective treatments for controlling RSV infection remain ...
Ji Eun Hong+15 more
doaj +1 more source
c-di-GMP Inhibits Early Sporulation in Clostridioides difficile
The formation of dormant spores is essential for the anaerobic pathogen Clostridioides difficile to survive outside the host gastrointestinal tract. The regulatory pathways and environmental signals that initiate C.
Adrianne N. Edwards+4 more
doaj +1 more source
Equisetum species are primitive vascular plants that benefit from the biogenesis of silica bio-organic inclusions in their tissues and participate in the annual biosilica turnover in local eco-systems.
Victor V. Volkov+3 more
doaj +1 more source
Extreme Compressed Sensing of Poisson Rates from Multiple Measurements [PDF]
Compressed sensing (CS) is a signal processing technique that enables the efficient recovery of a sparse high-dimensional signal from low-dimensional measurements. In the multiple measurement vector (MMV) framework, a set of signals with the same support must be recovered from their corresponding measurements.
arxiv +1 more source
ABSTRACT Despite being resistant to a variety of environmental insults, the bacterial endospore can sense the presence of small molecules and respond by germinating, losing the specialized structures of the dormant spore, and resuming active metabolism, before outgrowing into vegetative cells.
Anne, Moir, Gareth, Cooper
openaire +2 more sources
Mobility of core water in Bacillus subtilis spores by $^2$H NMR [PDF]
Bacterial spores in a metabolically dormant state can survive long periods without nutrients under extreme environmental conditions. The molecular basis of spore dormancy is not well understood, but the distribution and physical state of water within the spore is thought to play an important role.
arxiv +1 more source
Conservation of the “Outside-in” Germination Pathway in Paraclostridium bifermentans
Clostridium difficile spore germination is initiated in response to certain bile acids and amino acids (e.g., glycine). Though the amino acid-recognizing germinant receptor is unknown, the bile acid germinant receptor is the germination-specific ...
Disha Bhattacharjee, Joseph A. Sorg
doaj +1 more source