Etiology, Biology

Assignment Help:

Etiology
The infectious agent of psittacosis - lymphogranuloma venerum trachoma group (PLVG) is an obligate intracellular parasite and is classified as separate genera with only 2 species, viz. Chlamydia trachomatis and Chlamydia psittacii. These organisms are the members of an exclusive order Chlamydiales under the family Chlamydiaceae. The organism resembles bacteria in the composition of the cell wall, as it possesses both RNA and DNA and also multiply by binary fission. However, unlike bacteria, this multiplication occurs only within the host cells. In this respect, like viruses the organism is intracellular and can only be propagated or multiply in living cells. The elementary bodies of chlamydia stain with basic dyes and are visible as small, round red coloured dots with the light microscope when stained by the methods of Machiavello or Gimenez or modified acid-fast techniques. Their colour is purple blue in Giemenez stained preparations and appear Gram negative in Gram’s stained preparations.


Related Discussions:- Etiology

Explain about the food science and technology, Explain about the Food Scien...

Explain about the Food Science and Technology? Food Science and Technology are so inextricably linked that usually these are treated as one field of study. While Food Science d

Osmotic and ionic regulation, Osmotic and Ionic Regulation The  ammono...

Osmotic and Ionic Regulation The  ammonotelism, ureotelism and uricotelism are the adaptations of the animals for the removal of toxic nitrogenous wastes and thereby maintain

10 mcq question of plants, 10 mcq question in the topic of plants of 9th st...

10 mcq question in the topic of plants of 9th standard

Sieve tubes, What are sieve tubes suited for translocation of food? a.bord...

What are sieve tubes suited for translocation of food? a.bordered pits b.no end walls c.bordered lumen and perforated cross walls D.no protoplasm

Explain dextrorotatory, Dextrorotatory:- When  an  optically .active su...

Dextrorotatory:- When  an  optically .active substance rotates  the plane of polarized light in a clockwise direction.

Echocardiography, Echocardiography: LV hypertrophy can be identified using ...

Echocardiography: LV hypertrophy can be identified using M-Mode and 2 D imaging. Indications of myocardial ischemic states and systolic functions can be assessed by studying region

Starch, S T ARC H - Polymer of a-D-glucose. Starch is glucosan...

S T ARC H - Polymer of a-D-glucose. Starch is glucosan homopolysaccharide which is the major reserve food of plants. Starch is formed as an end product of photosynt

The reproductive system of house fly, The reproductive system of house fly:...

The reproductive system of house fly: In houseflies seperate male and female organisms are present. Male housefly reproductive system. The male hothe reproductive syste

Pesticides - danger to wildlife, Pesticides - Danger to Wildlife Anoth...

Pesticides - Danger to Wildlife Another recently realised danger to wildlife in many parts of the world has come from the development of more effective pesticides. As agricult

Define soy protein concentrates, Define Soy Protein Concentrates? The A...

Define Soy Protein Concentrates? The Association of American Feed Control Officials, Inc. (AAFCO) specifies soy protein concentrates as follows: "Soy Protein Concentrate is pre

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd