Updated: 2013-07-29 02:15:27
ConclusionsHP, T and HPT released due to plant stress potentially have an antimicrobial effect on the rumen microbiota which may explain the decreased biohydrogenation in vitro.
SignificanceThese data suggest that these volatile chemicals may be responsible for the higher summer n‐3 content of bovine milk.This article is protected by copyright. All rights reserved. (Source: Journal of Applied Microbiology)
Updated: 2013-07-28 04:00:00
Conclusions:
The significant advantage that the variants demonstrate in biofilm colonization over the wildtype denotes the importance of this phenotype in structured environments. (Source: BMC Microbiology - Latest articles)
Updated: 2013-07-27 04:00:00
ConclusionsThe tested consortium of endophytes has the potential to improve wheat adaptation to heat and drought.
Significance and Impact of the StudyThe capacity of endophytes to increase wheat tolerance for abiotic stress and to improved germination in endophyte‐free second generation seeds arising from stressed plants could be applicable to agriculture. The mechanisms by which intergenerational endophyte‐mediated affects occurs warrant further research.This article is protected by copyright. All rights reserved. (Source: Journal of Applied Microbiology)MedWorm Sponsor Message:</b Find the best Christmas presents and January Sales in the UK with this simple shopping directory.
Updated: 2013-07-27 04:00:00
ConclusionsRainfall was more strongly associated with FIB levels than land use category . The detection frequency of only the ruminant MST marker was associated with land use.
Significance and Impact of StudyMST can fine‐tune the assessment of human health risk from recreational use of inland waters, particularly when similar FIB levels but different surrounding land use and probable impacts exist.This article is protected by copyright. All rights reserved. (Source: Journal of Applied Microbiology)
Updated: 2013-07-27 04:00:00
ConclusionsThis study indicates that dietary MacroGard® supplementation modulates intestinal microbial communities of mirror carp and influences the morphology of the apical brush border.
Significance and Impact of the studyTo the authors’ knowledge this is the first study to investigate the effects of β‐(1,3)(1,6)‐D‐glucans on fish gut microbial communities, using culture‐independent methods, and the ultrastructure of the apical brush border of the enterocytes in fish. This prebiotic type effect may help to explain the mechanisms in which β‐glucans provide benefits when fed to fish.This article is protected by copyright. All rights reserved. (Source: Journal of Applied Microbiology)
Updated: 2013-07-26 04:00:00
Conclusion:
From the study it can be concluded, that iron antagonizing molecules and bacteriophages can be used as adjunct therapy for preventing biofilm development. (Source: BMC Microbiology - Latest articles)
Updated: 2013-07-26 04:00:00
Skip to main page content Home Current issue Archive Papers in Press Minireviews Reports Classics Reflections Papers of the Week QUICK SEARCH : Author : Keyword : Year : Vol : Page GO Advanced Search Browse the Archive Advertisement Advertisement The Mycobacterium tuberculosis Secreted Protein Rv0203 Transfers Heme to Membrane Proteins MmpL3 and MmpL11 Cedric P . Owens 1 Nicholas Chim Amanda B . Graves Christine A . Harmston Angelina Iniguez Heidi Contreras Matthew D . Liptak and Celia W . Goulding 2 From the Departments of Molecular Biology and Biochemistry and Pharmaceutical Sciences , University of California at Irvine , Irvine , California 92697 and the Department of Chemistry , University of Vermont , Burlington , Vermont 05405 2 To whom correspondence should be addressed . Tel .
Updated: 2013-07-26 04:00:00
Skip to main page content Home Current issue Archive Papers in Press Minireviews Reports Classics Reflections Papers of the Week QUICK SEARCH : Author : Keyword : Year : Vol : Page GO Advanced Search Browse the Archive Advertisement Advertisement Influence of Allosteric Regulators on Individual Steps in the Reaction Catalyzed by Mycobacterium tuberculosis 2-Hydroxy-3-oxoadipate Synthase Anand Balakrishnan Frank Jordan and Carl F . Nathan 1 From the Department of Microbiology and Immunology , Weill Cornell Medical College , New York , New York 10065 and Department of Chemistry , Rutgers University , Newark , New Jersey 07102 1 To whom correspondence should be addressed : Dept . of Microbiology and Immunology , Weill Cornell Medical College , 1300 York Ave . New York , NY 10065. Tel .
Updated: 2013-07-25 04:00:00
Conclusions:
The glyoxylate shunt of B. licheniformis can be functionally transferred to B. subtilis. This novel strain offers improved properties for industrial applications, such as growth on additional carbon sources and a greater robustness towards excess glucose feeding. (Source: Microbial Cell Factories)
Updated: 2013-07-25 04:00:00
P Datta, N Bansal, J ChanderIndian Journal of Medical Microbiology 2013 31(3):320-321 (Source: Indian Journal of Medical Microbiology)
Updated: 2013-07-25 04:00:00
T Menon, V Naveen Kumar, M Sekar, A PrincyIndian Journal of Medical Microbiology 2013 31(3):319-320 (Source: Indian Journal of Medical Microbiology)MedWorm Sponsor Message: Find the best Christmas presents and January Sales in the UK with this simple shopping directory.
Updated: 2013-07-25 04:00:00
This study evaluated the role of neem in inhibiting biofilm formation by P. aeruginosa. Factors contributing to adherence and biofilm formation were also studied. Results demonstrated that neem leaves extract was quite effective in disrupting formation and structure of biofilms. Moreover, the level of exopolysaccharide, alginate, hydrophobic interactions and uroepithelial cell attachment, which contributes to biofilm formation, was also affected significantly. Results confirm the effectiveness of neem extract in inhibiting biofilm formation. Such studies can lead to the discovery of safe antimicrobial drugs from natural sources without the risk of resistance. (Source: FEMS Immunology and Medical Microbiology)
Updated: 2013-07-25 04:00:00
This article is protected by copyright. All rights reserved. (Source: FEMS Immunology and Medical Microbiology)MedWorm Sponsor Message:</b Find the best Christmas presents and January Sales in the UK with this simple shopping directory.
Updated: 2013-07-25 04:00:00
Abstract
Reactive oxygen species (ROS) can attack a diverse range of targets to exert antimicrobial activity, which accounts for their versatility in mediating host defense against a broad range of pathogens. Most ROS are formed by the partial reduction in molecular oxygen. Four major ROS are recognized comprising superoxide (), hydrogen peroxide (H2O2), hydroxyl radical (•OH), and singlet oxygen (1O2), but they display very different kinetics and levels of activity. The effects of and H2O2 are less acute than those of •OH and 1O2, because the former are much less reactive and can be detoxified by endogenous antioxidants (both enzymatic and nonenzymatic) that are induced by oxidative stress. In contrast, no enzyme can detoxify •OH or 1O2, making them extremely toxic and acutely letha...
Updated: 2013-07-25 04:00:00
Authors: López-Quintero CA, Atanasova L, Franco-Molano AE, Gams W, Komon-Zelazowska M, Theelen B, Müller WH, Boekhout T, Druzhinina I
Abstract
The diversity of Trichoderma (Hypocreales, Ascomycota) colonizing leaf litter as well as the rhizosphere of Garcinia macrophylla (Clusiaceae) was investigated in primary and secondary rain forests in Colombian Amazonia. DNA barcoding of 107 strains based on the internal transcribed spacers 1 and 2 (ITS1 and 2) of the ribosomal RNA gene cluster and the partial sequence of the translation elongation factor 1 alpha (tef1) gene revealed that the diversity of Trichoderma was dominated (71 %) by three common cosmopolitan species, namely Trichoderma harzianum sensu lato (41 %), Trichoderma spirale (17 %) and Trichoderma koningiopsis (13 %). F...
Updated: 2013-07-24 14:17:05
This article is protected by copyright. All rights reserved. (Source: Clinical Microbiology and Infection)
Updated: 2013-07-24 14:16:30
ConclusionsThe method is fast, acurate, and easy to use. The algorithm is robust against different growth conditions (medium and temperature).
Significance and Impact of StudyThis assay may prove beneficial in a clinical diagnostic setting, where the rapid identification of B. pseudomallei is essential to effective treatment. This method could also be easily employed after a biological attack to confirm the presence of either B. pseudomallei or B. mallei.This article is protected by copyright. All rights reserved. (Source: Journal of Applied Microbiology)
Updated: 2013-07-24 04:00:00
Summary
Glycogen metabolism contributes to energy storage and various physiological functions in some prokaryotes, including colonization persistence. A role for glycogen metabolism is proposed on the survival and fitness of L. acidophilus, a probiotic microbe, in the human gastrointestinal environment. L. acidophilus NCFM possesses a glycogen metabolism (glg) operon consisting of glgBCDAP‐amy‐pgm genes. Expression of the glg operon and glycogen accumulation were carbon source‐ and growth phase‐dependent, and were repressed by glucose. The highest intracellular glycogen content was observed in early‐log phase cells grown on trehalose, which was followed by a drastic decrease of glycogen content prior to entering stationary phase. In raffinose‐grown cells, however, glycogen accu...
Updated: 2013-07-24 04:00:00
Summary
Contact dependent growth inhibition (CDI) is a phenomenon in which Gram‐negative bacteria use the toxic C‐terminus of a large surface‐exposed exoprotein to inhibit the growth of susceptible bacteria upon cell‐cell contact. Little is known about when and where bacteria express the genes encoding CDI system proteins and how these systems contribute to the survival of bacteria in their natural niche. Here we establish that, in addition to mediating interbacterial competition, the Burkholderia thailandensis CDI system exoprotein BcpA is required for biofilm development. We also provide evidence that the catalytic activity of BcpA and extracellular DNA are required for the characteristic biofilm pillars to form. We show using a bcpA‐gfp fusion that within the biofilm, expressi...
