non-selective medium

Blood agar and chocolate agar, and examples of complex and non-selective environment that Any variety of bacteria are capable of growth on the environment. Non-selective medium for isolation of bacteria of unknown samples are important. When a clinical sample is injected into a non-selective medium, several types of bacterial colonies are visible.

 the selective environment:

Because of the diversity of microorganisms in the sample material (eg, gastrointestinal) are stationary, the selective environment in order to eliminate (or reduce) the sample used in unrelated bacteria. Based on an element of choice environment growth inhibitor for Unwanted bacteria against bacterial pathogens is based. Examples of these include:

Sodium Zayd - against gram-positive bacteria, Gram-negative bacteria can be selected.

Bile salts: in the Enteric gram-negative bacteria And elimination of gram-negative bacteria and mucosal tissues are usually gram-positive bacteria.

Colistin and nalidixic acid to inhibit growth of Gram-negative bacteria.

Taken from medical microbiology Jawetz

Classification of bacteria

Classification, nomenclature and identification of three separate properties in the classification of bacteria, which has enormous significance.

Appropriate criteria used to classify Bactria to grow on the medium is biological. 

Unlike viruses and many parasites, pathogenic bacteria can be isolated using an agar medium containing solids.

Bacterial culture medium containing nutrients and metabolic needs of the environment.

Usually agar medium containing a carbon source and an amino acid solution or an amino acid produced by the enzyme (casein)

. It is not clear because the exact composition of their environments to complex environments

Call.

Taken from medical microbiology Jawetz

باکتری باسیلوس آنتراسیس عامل بیماری سیاه زخم است. نامهای دیگر این بیماری در زبان انگلیسی آنتراکس (Anthrax) و به فرانسوی شاربن است.
نام آنتراکس از کلمه یونانی (anthrakis) به معنی ذغال گرفته شده که بدلیل زخم سیاه رنگی هست که در این بیماری بوجود می‌ آید. از بیماریهای مشترک انسان و تعداد زیادی از حیوانات است که البته در حیوانات شایعتر و در انسان کمتر هست.

باکتریها ارگانیسمهای تک‌سلولی هستند که اکثرا به صورت آزاد زندگی می‌کنند و دارای اطلاعات ژنتیکی و تولید انرژی و سیستمهای بیوسنتتیک لازم برای رشد و تولید مثل خود می‌باشند. باکتریها متنوع‌ترین میکروارگانیسمها هستند و تعداد کمی در انسان جانوران و سایر موجودات بیماری زا بوده و بدون فعالیت آنها حیات بر روی زمین مختل می‌گردد.