December 2017 | Page 2 of 2 | PARAMEDICS WORLD
Open post MORPHOLOGY OF STAPHYLOCOCCUS AUREUS - PARAMEDICS

MORPHOLOGY AND CULTURE CHARACTERISTICS OF STAPHYLOCOCCUS AUREUS

MORPHOLOGY OF STAPHYLOCOCCUS AUREUS Shape – Round shape (cocci) Size – 1 micron (diameter) Arrangement of cells – Grape-like clusters Motility – Non-motile Flagella – Non-flagellated Spores – Non-sporing Capsule – present in some strains Gram Staining reaction – Gram +ve CULTURE REQUIREMENTS OF STAPHYLOCOCCUS AUREUS ⇒ Special requirements – No special requirements for culture,“MORPHOLOGY AND CULTURE CHARACTERISTICS OF STAPHYLOCOCCUS AUREUS”

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Open post STAPHYLOCOCCUS AUREUS

STAPHYLOCOCCUS AUREUS – MORPHOLOGY, CLASSIFICATION, CULTURE, IDENTIFICATION & TOXINS

Staphylococcus is a genus of Gram +ve, round shape bacteria that are arranged in grape-like clusters. The organisms of this genus are the commonest cause of suppurative lesions. It was first isolated by Sir Alexander Ogston and he gave the name Staphylococcus for the typical arrangement of the cocci in grape-like clusters. There are about“STAPHYLOCOCCUS AUREUS – MORPHOLOGY, CLASSIFICATION, CULTURE, IDENTIFICATION & TOXINS”

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Open post ALBERT STAINING - CORYNEBACTERIUM DIPTHERIAE

ALBERT STAINING – PRINCIPLE, REQUIREMENTS, PROCEDURE & INTERPRETATION

INTRODUCTION TO ALBERT STAINING Corynebacterium is the genus of Gram +ve, non-acid-fast, non-sporing, non-motile bacilli. The most important member of the genus is Corynebacterium diphtheriae, the causative agent of Diphtheria disease in children. The C. diptheriae or diphtheria bacillus was first described by Klebs but Loffler was the first to cultivate it in the laboratory“ALBERT STAINING – PRINCIPLE, REQUIREMENTS, PROCEDURE & INTERPRETATION”

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Open post ENDOSPORE STAINING

ENDOSPORE STAINING – PRINCIPLE, REQUIREMENTS, PROCEDURE & INTERPRETATION

INTRODUCTION TO ENDOSPORE STAINING Some bacteria are capable of changing into dormant structures that are metabolically inactive and do not grow or reproduce. Since these structures are formed inside the cells, hence called endospores. These are remarkably resistant to heat, radiation, chemicals and other agents, that are typically lethal to the organisms. The heat resistance“ENDOSPORE STAINING – PRINCIPLE, REQUIREMENTS, PROCEDURE & INTERPRETATION”

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Open post ACID FAST STAINING PROCEDURE, INTERPRETATION

ACID FAST STAINING – PRINCIPLE, REQUIREMENTS, PROCEDURE, INTERPRETATION

INTRODUCTION TO ACID FAST STAINING Acid fast staining technique was developed in 1882 by Paul Ehrlich and modified by Ziehl & Nielsen in 1890 hence called Z.N. Staining or Ziehl-Neelsen staining. Certain bacteria and Actinomycetes have many components in the cell wall and their cell wall has little permeability. Majority of bacteria can be stained“ACID FAST STAINING – PRINCIPLE, REQUIREMENTS, PROCEDURE, INTERPRETATION”

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Open post GRAMS STAINING

GRAM’s STAINING – PRINCIPLE, REQUIREMENTS, PROCEDURE & INTERPRETATION

INTRODUCTION TO GRAM STAINING Grams staining technique is the most important and widely used differential staining technique in Bacteriology. This technique was developed in 1884 by a Danish bacteriologist, Hans Christian Gram. The Gram staining technique differentiates the mixed culture cells into two terms – One which retains the color of primary stain is known“GRAM’s STAINING – PRINCIPLE, REQUIREMENTS, PROCEDURE & INTERPRETATION”

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Open post OPTICAL MICROSCOPE - COMPOUND MICROSCOPE - LIGHT MICROSCOPE

OPTICAL / LIGHT OR COMPOUND MICROSCOPE

INTRODUCTION TO OPTICAL / LIGHT OR COMPOUND MICROSCOPE The Optical microscope – commonly called as the Light microscope or Compound microscope is the most common type of microscope that is used in the diagnostic laboratories. The First optical microscope was invented in 1590 by Hans and Zacharias Janssen by placing two lenses in a tube.“OPTICAL / LIGHT OR COMPOUND MICROSCOPE”

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Open post MICROSCOPY AND TYPES OF MICROSCOPES

MICROSCOPY AND TYPES OF MICROSCOPES

INTRODUCTION TO MICROSCOPY AND MICROSCOPES Microscopy is the technique involves the investigation of microorganisms or small objects that are not within the resolution range of the normal human eye. This can be done by using a special instrument called microscope. Microscope is an instrument that is used to produce an enlarged and well-defined image of“MICROSCOPY AND TYPES OF MICROSCOPES”

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