Dictionary » P » Pathogenic



(Science: pathology) Capable of causing disease.

Origin: Gr. Gennan = to produce Able to cause disease; infective agents; pathogenic bacteria.Pertaining to properties similar to a [[pathogen.

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Methylene Blue Solution use in staining variety of bacteria?

... in their cell wall structure. Generally, gram positive bacteria, such as those found in yogurt (Lactobacillus and Streptococcus) are less pathogenic. Their cell walls can be disrupted with penicillin or with lysozyme (an enzyme that our cells are able to produce). Gram negative bacteria, ...

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by scytek
Sun Feb 22, 2015 9:22 am
Forum: General Discussion
Topic: Methylene Blue Solution use in staining variety of bacteria?
Replies: 0
Views: 268

Re: Which has a greater impact of evolution, mutations or genet

... because it largely depends on the definition for the mutation. When you see something that says that mutations are rare, they most likely meant pathogenic mutations. It such cases benign mutations and silent mutations are considered normal variation resulting in alternative allele. Genetic recombination ...

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by Cat
Fri Oct 31, 2014 2:26 am
Forum: Evolution
Topic: Which has a greater impact of evolution, mutations or genet
Replies: 1
Views: 1012

Gene deletion

Hi! I have bacterial strains (E. coli) that are drug-multiresistant and pathogenic. I would like to delete some genes in those strains using the "One step inactivation of chromosomal genes" (Datsenko and Wanner, 2000). However, I can hardly select ...

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by clefg
Wed Sep 04, 2013 3:56 am
Forum: Molecular Biology
Topic: Gene deletion
Replies: 5
Views: 3492

Re: growing bacteria in petri dishes

... and from where you have isolated the organisms. Normally as Mr Moderator said you should try to maintain the temperature of 37C for the growth of pathogenic bacteria. Some microorganisms does grow at high temperatures and some even at cold temperatures. So ideally try to maintain it at 37C. How ...

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by greatmicrobiologist
Sun Mar 10, 2013 2:30 pm
Forum: Microbiology
Topic: growing bacteria in petri dishes
Replies: 8
Views: 29456

Characteristics of Good Indicator Organisms?

As far as i know, Indicator organisms are itself non-pathogenic. It should be greater in number as compared to Pathogens (in fecal sample) so that you could easily determine whether your water sample is fecal contaminated or not. To detect either water ...

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by choozi
Sun Oct 28, 2012 6:38 pm
Forum: Microbiology
Topic: Characteristics of Good Indicator Organisms?
Replies: 2
Views: 5429
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