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541 articles for “bacteria”
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Research ArticleOpen accessEvery word in the titleIsolation and Identification of Local Soil Bacteria with Larvicidal Activities Against Aedes aegypti LarvaeNaif Mohammed Alotaibi, Saber Abdelkader Saïdi, Mohamed Mohamed Roushdy et al.Mosquito-borne diseases caused by infected mosquitoes like dengue fever, Zika fever, Chikungunya and malaria are spread to humans through biting causing disease epidemics all over the world. This indicates the necessity for new mosquito-borne disease control strategies in Saudi Arabia and internationally. This study evaluated the potential of local bacteria isolated from the soil of the Rahat region of Makkah, … …OnLine Journal of Biological Sciences, Vol. 22, Issue 4 · 14 Dec 2022 · 5,411 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDiversity and Resistance of Bacteria Isolated from a Neonatal Intensive Care Unit (NICU) Surfaces and the Hands of Nurses in Jeddah-Saudi ArabiaRoqaiah M. Al-Jabri, Ahmed M. Al-Hejin, Rukaia Gashgari et al.Healthcare-Associated Infections (HAIs) are a serious problem for neonates when admitted to NICUs. The healthcare environment and healthcare workers' hands may be a source of transmission. Therefore, there is a need to find microbial sources and identify the contaminants to improve disinfection protocols to reduce HAIs. Out of the 169 samples collected on nutrient agar media from NICUs of a … …OnLine Journal of Biological Sciences, Vol. 22, Issue 3 · 5 Aug 2022 · 5,828 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBacterial Diversity Change after Soil Fumigation and its Effect on the Population of Root-Knot NematodeMin Shan, Lihong Liu, Jing Chen et al.In order to explore the effects of soil fumigation on its bacterial diversity and root-knot nematode populations, the greenhouse tomato soil with root-knot nematode disease was fumigated during the summer idle period. This experiment used the high-efficiency organic sulfur soil fumigation treatment "Wofengkang"300 kg/hm2 to fumigate on the greenhouse tomato soil with a root-knot nematode incidence rate of 64.37% and … …American Journal of Biochemistry and Biotechnology, Vol. 18, Issue 1 · 2 Mar 2022 · 5,976 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleScreening and Characterization of Sponge-Associated Bacteria Producing Bioactive Compounds Anti-Vibrio sp.Aris Tri Wahyudi, Jepri Agung Priyanto, Wenang Maharsiwi, Rika Indri AstutiIn Indonesia, vibriosis is the main disease in shrimp. This disease is caused by Vibrio sp that may decrease the productivity of shrimp cultivation. Thus, exploration for new bioactive compounds as vibriosis biocontrol agent is necessary. Marine sponge-associated bacteria is one of many sources for bioactive compounds. The aim of this study was to screen marine sponge-associated bacteria producing anti-Vibrio … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 3 · 5 Oct 2018 · 10,357 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleConstruction of Recombinant Bioleaching Bacteria Thiobacillus ferrooxidans with Fluoride-Resistant ActivityYun-Chang Cao, Hong-Bo Wen, Nan Hu et al.Thiobacillus ferrooxidans is an important bioleaching bacterium, widely used in leaching, recovery of low-grade metals and environmental bioremediation. In bio-metallurgy industry, fluoride existing in some hard rock uranium deposits in south China severely affects the bacteria viability and inhibit leaching reproduction. In this study, the flr-4 gene that has strong resistance to fluorine ion in Caenorhabditis elegans, was cloned into … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 2 · 23 May 2018 · 11,341 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBioactive Compounds from Sponge Associated Bacteria: Anticancer Activity and NRPS-PKS Gene Expression in Different Carbon SourcesJepri Agung Priyanto, Rika Indri Astuti, Jun Nomura, Aris Tri WahyudiSponge associated bacteria with diverse NRPS-PKS genes could be the alternative source of bioactive compounds. This study aimed to analyze the activity as well as the regulatory mechanism regarding the anticancer properties derived from these bacteria against cancer cell lines. Extraction of bacterial metabolites using ethyl acetate solvent resulted yield ranging from 0.003 to 0.016% (w/v). Six extracts of bacterial … …American Journal of Biochemistry and Biotechnology, Vol. 13, Issue 4 · 5 Oct 2017 · 8,886 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBacteria as Quantum ClocksAtanas Todorov AtanasovIn this study we have investigated the biological application of Wigner’s inequalities for smallest quantum clock. We have shown that the mass, size and doubling time of bacteria satisfied the Wigner’s inequalities for quantum clock. Data on 17 bacteria with mass 1×10-17 -1×10-15 kg, size 0.3-50µm and doubling time 1×103-1×105 seconds confirmed the hypothesis of Pešić that possibly the living … …Physics International, Vol. 8, Issue 1 · 6 Sep 2017 · 7,994 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAntimicrobial and Antioxidant Activities of Bacterial Extracts from Marine Bacteria Associated with Sponge Stylotella sp.Daning Yoghiapiscessa, Irmanida Batubara, Aris Tri WahyudiSponge-associated bacteria have great potential in developing marine pharmaceutical industry since they are capable of synthesizing numerous bioactive metabolite compounds. This study aimed to isolate, characterize and investigate potential antimicrobial, toxicity and antioxidant of bioactive compounds of bacteria associated with sponge Stylotella sp. A total of 138 bacteria were selected. During screening stage, 45 isolates (32%) produced a wide spectrum … …American Journal of Biochemistry and Biotechnology, Vol. 12, Issue 1 · 22 Feb 2016 · 9,154 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGRAPHENE OXIDE AS ANTIMICROBIAL AGAINST TWO GRAM-POSITIVE AND TWO GRAM-NEGATIVE BACTERIA IN ADDITION TO ONE FUNGUSRoda F. Al-Thani, Noorunnisa Khanam Patan, Mariam A. Al-MaadeedGraphene based materials have wide potential applications in biology, biomedical, agriculture environmental and biotechnology. Graphene Oxide (GO) is one of those materials and has a promising substance as antimicrobial agents. GO in this study was prepared by a modified Hummers method and was characterized by different techniques for confirmation of formation of GO. To study the antimicrobial activities of GO, … …OnLine Journal of Biological Sciences, Vol. 14, Issue 3 · 14 Oct 2014 · 9,243 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDEVELOPMENT OF A BACTERIAL CULTURE SYSTEM USING A PAPER PLATFORM TO ACCOMMODATE MEDIA AND AN INK-JET PRINTING TO DISPENSE BACTERIATithimanan Srimongkon, Takuya Ishida, Kiyohiko Igarashi, Toshiharu EnomaeGenerally, bacterial culture is performed manually and is subject to error. Here, we created a novel, well-ordered and reliable system for dispensing bacteria microscopically by using paper and an ink-jet printer for controlled patterning. For paper to accommodate a culture medium, hydrophobic/hydrophilic patterns were incorporated onto the paper by immersing paper in a toluene solution of polystyrene and drying for … …American Journal of Biochemistry and Biotechnology, Vol. 10, Issue 1 · 26 Apr 2014 · 7,939 accessesView PDFCite