bifidobacteriaks

All About Bifidobacteria

Page history last edited by Katie 1 yr ago

All About Bifidobacteria

Research

Classification

Bifidobacteria is a anaerobic, gram-positive, irregular or branched rod-shaped bacteria and probiotic bacteria.

Kingdom:	Bacteria
Phylum:	Actinobacteria
Class:	Actinobacteria
Subclass:	Actinobacteridae
Order:	Bifidobacteriales
Family:	Bifidobacteriaceae
Genus:	*Bifidobacterium*

Gram-Stain

BifidoBacteria is gram-positive.Gram-positive bacteria are those that have a crystal violet dye during the Gram stain process.Gram-positive bacteria appear blue or violet under a microscope, while Gram-negative bacteria appear red or pink.

Beneficial or not:

Bifidobacterium is among the friendly microorganisms that have been shown to alleviate symptoms of inflammatory bowel disease. Antibiotics disrupt the balance of natural intestinal flora. The use of probiotics such as Lactobacillus, Streptococcus, and Bifidobacterium restores the population of beneficial bacteria. Bifidobacteria comes in yogert. Many people take bifidobacteria pill if they have colon problems or colon cancer.

History

http://www.rowett.ac.uk/edu_web/images/gut_reaction_images/Bifido_lge.jpg

Bifidobacteria was first isolated in the feces of new born infants.Henry Tissier, also from the Pasteur Institute, was the first to isolate a Bifidobacterium. He isolated the bacterium from a breast-fed infant and named it Bacillus bifidus communis. This bacterium was later renamed Bifidobacterium bifidum. Tissier showed that bifidobacteria are predominant in the gut flora of breast-fed babies, and he recommended administration of bifidobacteria to infants suffering from diarrhea. The mechanism claimed was that bifidobacteria would displace the proteolytic bacteria that cause the disease.

Henry Tissier, also from the Pasteur Institute, was the first to isolate a Bifidobacterium. He isolated the bacterium from a breast-fed infant and named it Bacillus bifidus communis. This bacterium was later renamed Bifidobacterium bifidum. Tissier showed that bifidobacteria are predominant in the gut flora of breast-fed babies, and he recommended administration of bifidobacteria to infants suffering from diarrhea. The mechanism claimed was that bifidobacteria would displace the proteolytic bacteria that cause the disease.

Stucture:

http://microbewiki.kenyon.edu/images/f/fa/Bifido_on_colon.jpg

Bifidobacteria is anaerobic, gram-positive, irregular or branched rod-shaped bacteria and forms clusters on the colon. They are unmotile,nonspore forming, and catalase negative bacteria.

Habitat:

http://www.enzymeindia.com/enzymes/images2/Bifidobacterium_img.jpg

Bifidobacteria lives a normal life is in the human and animal colon. In places of high acidy and high heat. Bifidobacteria works to erraticate any harmful bacteria from the colon or intestines.

What would happen if this bacteria was not here?

http://www.yakultsymposium.co.uk/gfx/format/20060227YUK_bifidobacterium%20breve%20pink.jpg

There will be nothing to destroy putrefactive bacteria (the "bad" bacteria) within the lower tract of the intestine.

There would not be anything to remove toxins from the lower tract and disable possibly carcinogenic bacteria.

There would to normalize intestinal pH.

There would be nothing to repair damage to the digestive tract.

Reproduction

http://www.magma.ca/~pavel/science/Bibre-2P.jpg

Bifidobacteria reproduces through binary fission, a form of asexual reproduction like most bacteria.

Nutritional Requirements

http://www.aloe-info.nl/images/bifidobacteria.jpg

Bifidobacteria ferment sugars to produce lactic acid this changes the ph in the colon or lower intestine to change.Bifidobacteria have a unique hexose metabolism that occurs through a phosphoketolase pathway. This pathway, called the bifid shunt, uses the key enzyme frutose-6-phosphate phosphoketolase.