Results 51 to 60 of about 60,658 (255)

Adsorption of bacterial spores from air using bone char

Salāmat-i kār-i Īrān, 2013
Background and aims : Microorganisms are one of the most important sources of contamination in indoor air and occupational environments especially in hospitals. The aim of this study was to evaluate the adsorption characteristics of bone char to adsorb B.
F Ghasemi, A Rezaee, M.J Jafari
doaj  

Bacterial Spores in Food: Survival, Emergence, and Outgrowth [PDF]

Annual Review of Food Science and Technology, 2016
Spore-forming bacteria are ubiquitous in nature. The resistance properties of bacterial spores lie at the heart of their widespread occurrence in food ingredients and foods. The efficacy of inactivation by food-processing conditions is largely determined by the characteristics of the different types of spores, whereas food composition and storage ...
Wells-Bennik, Marjon H.J., Eijlander, Robyn T., Den Besten, Heidy M.W., Berendsen, Erwin M., Warda, Alicja K., Krawczyk, Antonina O., Nierop Groot, Masja N., Xiao, Yinghua, Zwietering, Marcel H., Kuipers, Oscar P., Abee, Tjakko   +10 more
openaire   +4 more sources

Blocking Honeybee Preference for Neonicotinoids by Interfering With Dopamine Signaling

Advanced Science, EarlyView.
Honeybees (Apis mellifera) paradoxically prefer nectar containing the harmful neonicotinoid thiamethoxam. This preference is associated with transient brain dopamine elevation during proboscis extension reflex (PER) responses and active feeding, and is reduced by the dopamine receptor antagonist fluphenazine.
Jing Li, Yuan Ge, Wangjiang Feng, David C. Lyon, Pingli Dai, Yong‐Jun Liu   +5 more
wiley   +1 more source

RNA Dynamics in Aging Bacterial Spores [PDF]

Cell, 2012
Upon starvation, the bacterium Bacillus subtilis enters the process of sporulation, lasting several hours and culminating in formation of a spore, the most resilient cell type known. We show that a few days following sporulation, the RNA profile of spores is highly dynamic.
Segev, Einat, Smith, Yoav, Ben-Yehuda, Sigal   +2 more
openaire   +2 more sources

Bacterial Geosmin Biosynthesis is Compartmentalized Inside a Two‐Component Protein Shell

Advanced Science, EarlyView.
This study reports the discovery that geosmin biosynthesis is compartmentalized inside a two‐component protein shell in many bacteria. Sequestration of geosmin synthase inside a Family 2B encapsulin nanocompartment improves geosmin yield and increases enzyme stability as compared to the free enzyme.
Asif Fazal, Cassandra A. Dutcher, Michael P. Andreas, Tobias W. Giessen   +3 more
wiley   +1 more source

Effects of Aqua-Glycerol Uptake Facilitator Protein GlpF on Spore Germination of Bacillus subtilis

Foods
Killing spores is an important challenge for the development of the food industry. After germination, the resistance of spores disappears and they are more easily killed, which is currently the main strategy for their destruction. Therefore, study of the
Tianlin Cui, Zequn Zhang, Kangyi Mu, Yicong Shi, Fang Chen, Li Dong, Xiaosong Hu   +6 more
doaj   +1 more source

Bacillus cereus spores release alanine that synergizes with inosine to promote germination.

PLoS ONE, 2009
BackgroundThe first step of the bacterial lifecycle is the germination of bacterial spores into their vegetative form, which requires the presence of specific nutrients.
Tetyana Dodatko, Monique Akoachere, Stefan M Muehlbauer, Forrest Helfrich, Amber Howerton, Christian Ross, Vicki Wysocki, Jürgen Brojatsch, Ernesto Abel-Santos   +8 more
doaj   +1 more source

Molecular Kinetics of Reviving Bacterial Spores [PDF]

Journal of Bacteriology, 2013
ABSTRACT Bacterial spores can remain dormant for years, yet they possess a remarkable potential to rapidly resume a vegetative life form. Here, we identified a distinct phase at the onset of spore outgrowth, designated the ripening period.
Segev E, Rosenberg A, Mamou G, Sinai L, Ben-Yehuda S   +4 more
openaire   +2 more sources

Bacillus Licheniformis‐Induced Cognitive Decline in Mice Linking Gut Microbiota Dysbiosis, Metabolic Perturbations, and Hippocampal Neuroinflammation

Advanced Science, EarlyView.
Chronic oral administration of specific probiotic strains triggers gut microbiota dysbiosis and systemic metabolic perturbations in mice. Multi‐omics profiling reveals subsequent hippocampal glial remodeling and neuroinflammation, which are linked to cognitive impairment.
Yibin Lin, Afeng Wang, Hongchang Zhou, Yuliang Sun, Yingying Guo, Keyu Chen, Junhong Sun, Tinliang Lin, Zhaochen Huang, Xinhua Qiang, Jie He, Jianlin Lou, Yunliang Yao, Shengwen Shao, Yongliang Pan, Xiang Wang   +15 more
wiley   +1 more source

Hygienic safety of alcohol-based hand disinfectants and skin antiseptics

GMS Hygiene and Infection Control, 2013
[english] Purpose: The aim of this study was to evaluate the overall risk of hand disinfectants and skin antiseptics to become contaminated with bacterial spores throughout the production process and the subsequent in-use period, hence posing a public ...
Steinhauer, Katrin, Meyer, Bernhard, Ostermeyer, Christiane, Rödger, Hans-Joachim, Hintzpeter, Matthias   +4 more
doaj   +1 more source