Habitat Archives | Microbe Notes

Habitat vs Niche- Definition, 14 Major Differences, Examples

December 30, 2020July 21, 2020 by Anupama Sapkota

Differences between Habitat and Niche (Habitat vs Niche)

Habitat Definition A habitat is a natural environment where a particular organism lives and utilizes the resources of that place for its survival, food, shelter, protection, and mating. The term habitat has been derived from the Latin word, ‘habitāre’ which means ‘to inhabit’. The habitat of an organism is characterized by its physical and biological characteristics. The physical factors include …

Habitat of Bacillus cereus

January 10, 2020June 11, 2019 by Sagar Aryal

Habitat of Bacillus cereus Bacillus cereus is isolated from soil, vegetables, milk, cereals, spices, fried rice, cooked poultry and meats, soups and desserts. It is also found in mashed potato, beef stew, apples, hot chocolates sold in vending machines and other improper food handling areas. In 1887, B. cereus was isolated from air in a cowshed by Frankland and Frankland. It …

Habitat of E. coli

January 10, 2020May 24, 2019 by Sagar Aryal

Habitat of E. coli Some of the characteristics are: E. coli was discovered by Theodor Escherich in 1885 after isolating it from the feces of newborns. E. coli is the normal flora of the human body. The niche of E. coli depends upon the availability of the nutrients within the intestine of host organisms. The primary habitat of E. coli is in …

Habitat and Morphology of Acinetobacter baumannii

February 4, 2021June 30, 2018 by Sagar Aryal

Habitat of Acinetobacter baumannii The first Acinetobacter found in soil was discovered in 1911 by M.W. Beijerinck. It is associated with aquatics environment. It has been recovered from soil, water, animals, and humans. Found in the respiratory and oropharynx secretions of infected individuals. Found in hospital environment and accounts for 10% nosocomial infections in ICU. It has been suggested that human …

Habitat and Morphology of Gardnerella vaginalis

February 4, 2021June 23, 2018 by Sagar Aryal

Habitat of Gardnerella vaginalis Normal flora in 40% female (small amount) Found in urine Rarely in blood and wound Found in the anorectal flora of healthy adults of both sexes and as well as children. Isolated from normal vagina of reproductive age female & male urethra (partners of women with bacterial vaginosis). Optimum pH for growth in between 6 and 7. …

Habitat and Morphology of Mycoplasma pneumoniae

February 4, 2021March 23, 2018 by Sagar Aryal

Habitat of Mycoplasma pneumoniae They are found in the mucosa of upper respiratory tract (UTR) and urogenital tract of humans. Also found in oral cavity. They are also present in sewage, plants, animals, insects, humans and hot springs. They grow slowly than bacteria. They are self-replicating bacteria. They are atypical bacteria. They do not grow in the environment. They depends …

Habitat and Morphology of Mycobacterium leprae

January 11, 2020March 13, 2018 by Sagar Aryal

Habitat of Mycobacterium leprae They are found in soil, water and air. Found in the soils where the leprosy infected people live. Most of them are non-pathogenic and non-parasitic. Found in warm tropical countries. Mycobacterium leprae are found in the peripheral nerves of humans. Found in the cold parts of the body like hand, feet and nose. They are aerobic …

Habitat and Morphology of Streptococcus pneumoniae

February 4, 2021March 10, 2018 by Sagar Aryal

Habitat of Streptococcus pneumoniae Streptococcus pneumoniae are found worldwide. Found in primates, livestock and felines. They are the part of normal flora of upper respiratory tract infection in humans. Mostly found in throat and nasal passage. They infection mostly children in winter seasons. They are Mesophilic, 30 to 35°C. Morphology of Streptococcus pneumoniae They are gram positive bacteria. May lose …

Habitat and Morphology of Shigella dysenteriae

February 4, 2021October 10, 2017 by Sagar Aryal

Habitat of Shigella dysenteriae They are found worldwide. Humans are only the natural host. They are also found in human intestinal tract. They are mostly found in the area where there is overcrowded. Prevalent in low waste management areas and no safe drinking water supply. Houseflies serves as vectors. They are also found in contaminated food and water. They causes …

Habitat and Morphology of Klebsiella pneumoniae

February 4, 2021October 5, 2017 by Sagar Aryal

Habitat of Klebsiella pneumoniae They are found in mouth, skin and intestinal tract of human beings. They are also found in soil, water and sewage. Also found in bowel and respiratory tract of humans and animals. Found in the hands of hospital personnel. They are responsible for community and hospital acquired infections. People requiring equipment’s such as catheters and ventilators are …