scholarly journals Characterization of lectinlike surface components on Capnocytophaga ochracea ATCC 33596 that mediate coaggregation with gram-positive oral bacteria.

1987 ◽  
Vol 55 (5) ◽  
pp. 1198-1202 ◽  
Author(s):  
E I Weiss ◽  
J London ◽  
P E Kolenbrander ◽  
A S Kagermeier ◽  
R N Andersen
Keyword(s):  
Oral Bacteria ◽  
Gram Positive

Bactericidal activity characterization of an expanded porphyrin on Gram-positive bacteria.

2010 ◽  
Vol 150 ◽  
pp. 438-438 ◽  
Author(s):  
G. Rossi ◽  
R. Fedele ◽  
C. Comuzzi ◽  
D. Goi
Keyword(s):  
Bactericidal Activity ◽  
Gram Positive ◽  
Gram Positive Bacteria ◽  
Expanded Porphyrin

scholarly journals Identification and characterization of UDP-N-acetylenolpyruvylglucosamine reductase (MurB) from the Gram-positive pathogen Streptococcus pneumoniae

2001 ◽  
Vol 355 (2) ◽  
pp. 431 ◽  
Author(s):  
Daniel R. SYLVESTER ◽  
Emilio ALVAREZ ◽  
Arun PATEL ◽  
Kapila RATNAM ◽  
Howard KALLENDER ◽  
...  
Keyword(s):  
Streptococcus Pneumoniae ◽  
Gram Positive ◽  
Identification And Characterization

scholarly journals Characterization of the replicon of a 51-kb native plasmid from the gram-positive bacteriumLeifsonia xylisubsp.cynodontis

2004 ◽  
Vol 236 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Tai-Yuan Li ◽  
Ping Yin ◽  
Yu Zhou ◽  
Yi Zhang ◽  
Yong-Ying Zhang ◽  
...  
Keyword(s):  
Gram Positive ◽  
Native Plasmid

scholarly journals Non-antimicrobial effect of Alocasia denudata Engler against selected Gram-positive oral pathogen

2020 ◽  
Author(s):  
Nurul Akilah Mohd Yusoff ◽  
Tuan Nadrah Naim Ismail Ismail ◽  
Wan Nazatul Shima Shahidan
Keyword(s):  
Antimicrobial Effect ◽  
Oral Bacteria ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Antioxidant Compounds ◽  
Poison Center ◽  
Antimicrobial Compound ◽  
Gram Positive ◽  
Oral Pathogen ◽  
Freeze Dried

Introduction: Alocasia denudata is a herbal plant used by traditional healers as a wound healing agent and its potential as a healer has been proven scientifically. Normally, wounded tissue offers the opportunity for microflora to adhere, colonize, invade, and infect the surrounding healthy tissue. Therefore, the aim of this study is to assess the antimicrobial effect of A. denudata on selective oral pathogen as well as to analyze its phytochemical compound. Methods: The stem of A. denudata was extracted with 80% ethanol solution, freeze-dried, and sent to poison center to analyze its phytochemical constituents. The bioassay applied for determining the antimicrobial effect employs the well agar diffusion method to the selected Gram-positive oral bacteria; Streptococcus mutans, Staphylococcus aureus, Enterococcus faecalis, and non-oral pathogen Streptococcus pyogenes. These bacteria were incubated and the inhibition zone was recorded. Results: Our results showed that the mean yield of extraction was 12.8% and that the different concentrations of A. denudata show no antimicrobial effects toward the selected Gram-positive oral pathogen including non-oral pathogen bacteria. However, the gas chromatography–mass spectrometry result showed that antimicrobial compound is present along with anti-inflammatory and antioxidant compounds but showed no effect on the oral pathogen. Conclusion: A. denudata extract has antimicrobial compound but did not show antimicrobial activity toward the selected Gram-positive oral pathogen.

scholarly journals Morphological characterization of gram-positive and gram-negative bacteria from treated latex processing wastewater

2021 ◽  
Vol 1 (2) ◽  
pp. 32-36
Author(s):  
Farrah Aini Dahalan ◽  
Nor Azizah Parmin
Keyword(s):  
Oxygen Demand ◽  
Morphological Characterization ◽  
The Other ◽  
Morphological Properties ◽  
Morphological Observation ◽  
Gram Positive ◽  
Bacterial Colony ◽  
Gram Negative ◽  
Gram Staining

A preliminary morphological screening and isolation of bacterial colony from latex industrial wastewater was carried out. Bacteria colonies from latex processing wastewater were isolated from a local latex processing industry. It was found that 17 bacterial isolates had been purified grown on nutrient agar under 35˚C. The colonies were then purified and morphologically indicated via Gram staining and motility test. After morphological observation, it was identified that out of 17 isolates, 9 isolates were Gram positive and 8 isolates were Gram negative. There are 11 out of 17 colonies were rod-shaped bacterial colonies, while the other 6 colonies were cocci-shaped bacteria. There were 11 colonies of gliding bacteria, three colonies were non-motile bacteria and the other three colonies were flagellated bacteria. This study is only limited to morphological observation as the main aim of this study was to investigate the potential occurrence of viable growth in treated latex processing wastewater. The bacterial colonies were classified base on their morphological properties shown. This study has classified several genera such as Staphylococcus, Escherichia, Thiobacillus, Arthrobacter and other Genus. The growth curve of 17 isolates studied and the chemical oxygen demand were determined.

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