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Celenk Molva et al.
International journal of food microbiology, 189, 82-88 (2014-08-19)
Alicyclobacillus acidoterrestris is a spoilage bacterium in fruit juices leading to high economic losses. The present study evaluated the effect of sporulation medium on the thermal inactivation kinetics of A. acidoterrestris DSM 3922 spores in apple juice (pH3.82±0.01; 11.3±0.1 °Brix).
C C J van Melis et al.
International journal of food microbiology, 160(2), 124-130 (2012-11-28)
In this study, the impact of a range of organic acids and structurally similar alcohols with three to six carbon backbones and increasing lipophilic character, were tested on the germination behavior of B. cereus ATCC 14579 spores. This approach allowed
Stephanie Luu et al.
Journal of bacteriology, 196(9), 1733-1740 (2014-02-25)
A major event in the nutrient germination of spores of Bacillus species is release of the spores' large depot of dipicolinic acid (DPA). This event is preceded by both commitment, in which spores continue through germination even if germinants are
Takashi A Inoue et al.
PloS one, 10(5), e0126632-e0126632 (2015-05-09)
To elucidate the purpose of butterfly puddling, we measured the amounts of Na+, K+, Ca2+, and Mg2+ that were absorbed or excreted during puddling by male Japanese Papilio butterflies through a urine test. All of the butterflies that sipped water
Carlos Juan et al.
Antimicrobial agents and chemotherapy, 52(10), 3589-3596 (2008-07-23)
During a survey conducted to evaluate the incidence of class B carbapenemase (metallo-beta-lactamase [MBL])-producing Pseudomonas aeruginosa strains from hospitals in Majorca, Spain, five clinical isolates showed a positive Etest MBL screening test result. In one of them, strain PA-SL2, the
Voula Mitsakos et al.
Bioorganic & medicinal chemistry letters, 18(2), 842-844 (2007-12-07)
Dihydrodipicolinate synthase (DHDPS) is a key enzyme in lysine biosynthesis and an important antibiotic target. The specificity of a range of heterocyclic product analogues against DHDPS from three pathogenic species, Bacillus anthracis, Mycobacterium tuberculosis and methicillin-resistant Staphylococcus aureus, and the
Pengfei Zhang et al.
Journal of bacteriology, 194(3), 646-652 (2011-11-30)
The kinetic parameters of the release of Ca(2+)-dipicolinic acid (CaDPA) during germination of spore populations and multiple individual spores of Bacillus subtilis strains with major alterations in the structure of the spore peptidoglycan (PG) cortex or lacking one or both
Xuan Yi Butzin et al.
Journal of bacteriology, 194(21), 5749-5758 (2012-08-21)
As previously reported, gerP Bacillus subtilis spores were defective in nutrient germination triggered via various germinant receptors (GRs), and the defect was eliminated by severe spore coat defects. The gerP spores' GR-dependent germination had a longer lag time between addition
Saikh Mohammad Wabaidur et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 93, 331-334 (2012-04-10)
Biologically important compound dopamine plays an important role in the central and peripheral nervous systems. Insufficient dopamine level due to the loss of dopamine producing cells may lead to disease called Schizophrenia and Parkinson's disease. Hence, a simple and fast
L E Horsfall et al.
Antimicrobial agents and chemotherapy, 51(6), 2136-2142 (2007-02-20)
Various inhibitors of metallo-beta-lactamases have been reported; however, none are effective for all subgroups. Those that have been found to inhibit the enzymes of subclass B2 (catalytically active with one zinc) either contain a thiol (and show less inhibition towards
Nathan R Rose et al.
Journal of medicinal chemistry, 51(22), 7053-7056 (2008-10-24)
The dynamic methylation of histone lysyl residues plays an important role in biology by regulating transcription, maintaining genomic integrity, and by contributing to epigenetic effects. Here we describe a variety of inhibitor scaffolds that inhibit the human 2-oxoglutarate-dependent JMJD2 subfamily
Yunfeng Li et al.
Journal of bacteriology, 194(8), 1875-1884 (2012-02-14)
The proteins encoded by the spoVA operon, including SpoVAD, are essential for the uptake of the 1:1 chelate of pyridine-2,6-dicarboxylic acid (DPA(2,6)) and Ca(2+) into developing spores of the bacterium Bacillus subtilis. The crystal structure of B. subtilis SpoVAD has
Abdolaziz Rastegar Lari et al.
International journal of immunopathology and pharmacology, 28(3), 384-389 (2015-03-31)
Production of metallo-beta-lactamase (MBL) is one of the main mechanisms for resistance in carbapenem antibiotics. Detection of MBL-producer Pseudomonas aeruginosa is crucial in preventing its spread to other gram-negative bacteria. The aim of this study was to evaluate combination disc
Ritwika Ray et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(47), 15618-15624 (2014-10-07)
The present article describes novel oxidative protocols for direct esterification of alcohols. The protocols involve successful demonstrations of both "cross" and "self" esterification of a wide variety of alcohols. The cross-esterification proceeds under a simple transition-metal-free condition, containing catalytic amounts
Jing-qiao Zhang et al.
Journal of bacteriology, 195(8), 1735-1740 (2013-02-12)
Germination of Bacillus subtilis spores can be triggered by the binding of specific nutrients, called germinants, to germinant receptors (GRs) in the spore's inner membrane. This interaction eventually initiates, with variable time delays, the release of dipicolinic acid and cations
Samantha K Cary et al.
Nature chemistry, 9(9), 856-861 (2017-08-25)
Electron transfer in mixed-valent transition-metal complexes, clusters and materials is ubiquitous in both natural and synthetic systems. The degree to which intervalence charge transfer (IVCT) occurs, dependent on the degree of delocalization, places these within class II or III of
V Miriagou et al.
Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases, 19(9), E412-E415 (2013-05-01)
Klebsiella pneumoniae strains co-producing klebsiella pneumoniae carbapenemase (KPC) and verona integron-encoded metallo-beta-lactamase (VIM) are frequently isolated in Greece and have also occurred in other European countries. Conventional combined disc tests exhibit low sensitivity against these emerging pathogens. We have evaluated
Berin A Boughton et al.
Bioorganic & medicinal chemistry letters, 18(2), 460-463 (2007-12-14)
Dihydrodipicolinate synthase (DHDPS) is a key enzyme in lysine biosynthesis and a potential antibiotic target. The enzyme catalyses the condensation of (S)-aspartate semi-aldehyde (ASA) and pyruvate to form dihydrodipicolinate. Constrained diketopimelic acid derivatives have been designed as mimics of the
L S Barnes et al.
Journal of inorganic biochemistry, 105(12), 1580-1588 (2011-11-11)
Terbium-sensitized luminescence and its applicability towards the detection of Bacillus spores such as anthrax are of significant interest to research in biodefense and medical diagnostics. Accordingly, we have measured the effects of terbium chelation upon the parameters associated with dipicolinate
Chao Xu et al.
Inorganic chemistry, 52(5), 2750-2756 (2013-02-21)
Complexation of UO2(2+) with dipicolinic acid (DPA) has been investigated in 0.1 M NaClO4. The stability constants (log β1 and log β2) for two successive complexes, UO2L and UO2L2(2-) where L(2-) stands for the deprotonated dipicolinate anion, were determined to
J. Ind. Chem. Soc., 71, 9-9 (1994)
P R Sajanlal et al.
Nanoscale, 4(11), 3427-3437 (2012-04-27)
We present the synthesis of highly anisotropic nickel nanowires (NWs) and large area, free-standing carpets extending over cm(2) area by simple solution phase chemistry. The materials can be post-synthetically manipulated to produce hybrid tubes, wires, and carpets by galvanic exchange
Arturo Ramirez-Peralta et al.
Journal of bacteriology, 194(13), 3417-3425 (2012-04-24)
Bacillus subtilis isolates lacking the SpoVT protein, which regulates gene expression in developing forespores, gave spores that released their dipicolinic acid (DPA) via germinant receptor (GR)-dependent germination more rapidly than wild-type spores. Non-GR-dependent germination via dodecylamine was more rapid with
Bulletin of the Chemical Society of Japan, 64, 3659-3659 (1991)
Zhong Zhang et al.
International journal of food microbiology, 160(2), 99-104 (2012-11-28)
High-pressure thermal sterilization (HPTS) is a new and promising sterilization technology of foods. Effects of combining HPTS and ethanol treatment on inactivation of Bacillus subtilis spores were investigated. An interesting phenomenon was observed. The inactivation effect of HPTS treatment on
Mariagrazia Perilli et al.
Antimicrobial agents and chemotherapy, 51(8), 2988-2990 (2007-05-02)
A new natural IND-type metallo-beta-lactamase variant, IND-5, was identified in a clinical isolate of Chryseobacterium indologenes. IND-5 shared 92.8% and 92.4% amino acid homology with IND-1 and IND-3, respectively. Purified enzyme (pI = 8.8, M(r) = 25,000) was able to
Jianbo Sun et al.
Biochimica et biophysica acta, 1838(12), 2985-2993 (2014-08-27)
As fundamental components in innate immunity, antimicrobial peptides (AMPs) hold great potentials in the treatment of persistent infections involving slow-growing or dormant bacteria in which, selective inhibition of prokaryotic bacteria in the context of eukaryotic cells is not only an
Lingbo Kong et al.
The Analyst, 137(16), 3683-3689 (2012-07-06)
The core of dormant bacterial spores suspended in water contains a large depot of dipicolinic acid (DPA) chelated with divalent cations, predominantly Ca(2+) (CaDPA), and surrounded by water molecules. Since the intensities of the vibration bands of CaDPA molecules depend
Bente Aa Lomstein et al.
Nature, 484(7392), 101-104 (2012-03-20)
Two decades of scientific ocean drilling have demonstrated widespread microbial life in deep sub-seafloor sediment, and surprisingly high microbial-cell numbers. Despite the ubiquity of life in the deep biosphere, the large community sizes and the low energy fluxes in this
Mesay Mulugeta Wolle et al.
Journal of chromatography. A, 1347, 96-103 (2014-05-14)
An ion chromatography-inductively coupled plasma mass spectrometry (IC-ICP-MS) method was developed for the redox speciation analysis of iron (Fe) based on in-column complexation of Fe(2+) and Fe(3+) by dipicolinic acid (DPA). The effects of column type, mobile phase composition and
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