Bacterial Spore definition of Bacterial Spore in the Free Online Encyclopedia.

Spore, Bacterial

an oval or rounded formation that occurs within bacilliform cells (sporiferous bacteria). Within each bacterial spore is a compact mass of deoxyribonucleic acid (DNA), ribonucleic acid (RNA), and protein. Bacterial spores are resistant to the effects of poisonous substances and other unfavorable external factors; the resistance results from the lower water content (15–20 percent) in spores than in vegetative cells, the presence of four to five dense, poorly permeable membranes, and the transition of the enzymes to an inactive state. The resistance of spores to high temperatures—some spores can survive boiling for 30 minutes or longer—is caused by the presence of a large quantity of the calcium salt of dipicolinic acid in the membranes.

Upon encountering a fresh nutrient medium, the spores germinate in a polar or equatorial manner, giving rise to new bacterialcells.

Mentioned in	?		References in periodicals archive	?		Encyclopedia browser	?		Full browser	?
No references found	Panspermia is the idea that life was seeded by extraterrestrial microbes in the form of hardy bacterial spores that hitched a ride on a space rock and landed on Earth. Space viruses may have not seeded life on Earth by Asian News International However bacterial spores and the ascospores of heat-resistant molds are generally considered pressure-resistant. High-pressure inactivation of ascospores for treating fruits and ... by Microbial Update International According to research, the build up of bacterial spores in the air-vents can cause health problems, particularly for those already suffering from asthma, when the system is finally used again. Warning on the air-con by Birmingham Mail (England)	bacterial corrosion bacterial diseases Bacterial Diseases of Plants bacterial encephalitis bacterial endocarditis bacterial endoenzyme bacterial endospore bacterial enzyme Bacterial Fertilizers Bacterial Filters Bacterial genetics Bacterial growth bacterial infection bacterial leaf spot Bacterial Lixiviation bacterial luminescence bacterial metabolism bacterial motility bacterial photosynthesis Bacterial physiology and metabolism bacterial pigmentation bacterial pneumonia bacterial pustule bacterial soft rot bacterial speck Bacterial Spore bacterial spot Bacterial taxonomy Bacterial Titer bacterial transformation bacterial vaccine bacterial vaginosis bacterial wilt disease Bactericidal Capacity Bactericidal Lamp Bactericidal Substances bactericide bactericidin bacterin bacteriochlorophyll Bacteriochlorophylls bacteriocin bacteriocinogen bacteriocyte bacteriogenic Bacteriological Ammunition Bacteriological Reconnaissance bacteriological warfare Bacteriological Weapon bacteriologist Bacteriology	bacterial plaque, dental plaque Bacterial pneumonia Bacterial pneumonia Bacterial pneumonia Bacterial Polysaccharide Gene Database bacterial polysaccharide immune globulin bacterial polysaccharide immune globulin bacterial polysaccharide immune globulin Bacterial Production bacterial prostatitis Bacterial protein Bacterial proteins Bacterial proteins Bacterial proteins bacterial pustule bacterial recombination bacterial recombination bacterial recombination bacterial resistance Bacterial Respiratory Pathogens Research Unit bacterial sensitivity bacterial sensitivity bacterial sensitivity bacterial sensitivity Bacterial Shoot Blight of Pear Bacterial Single Cell Protein bacterial sinusitis bacterial skin infection bacterial soft rot bacterial speck Bacterial Spore Bacterial Spore Parasite of Nematodes Bacterial spores Bacterial spores Bacterial spores bacterial spot Bacterial Spot-Causing Xanthomonad Bacterial Strain-Identification Bacterial Strain-Identification and Mutant Analysis Service Bacterial Structural Genomics Initiative bacterial t bacterial t bacterial t bacterial t Bacterial taxonomy Bacterial Tet Operator Bacterial Titer bacterial toxin bacterial toxin bacterial toxin bacterial toxin bacterial toxins bacterial toxins bacterial toxins bacterial toxins bacterial tracheitis bacterial tracheitis bacterial tracheitis Bacterial transferrin receptor complex Bacterial transferrin receptor complex Bacterial transferrin receptor complex

Mentioned in

References in periodicals archive

Encyclopedia browser

Full browser

No references found

Panspermia is the idea that life was seeded by extraterrestrial microbes in the form of hardy bacterial spores that hitched a ride on a space rock and landed on Earth.

Space viruses may have not seeded life on Earth by Asian News International

However bacterial spores and the ascospores of heat-resistant molds are generally considered pressure-resistant.

High-pressure inactivation of ascospores for treating fruits and ... by Microbial Update International

According to research, the build up of bacterial spores in the air-vents can cause health problems, particularly for those already suffering from asthma, when the system is finally used again.

Warning on the air-con by Birmingham Mail (England)

bacterial corrosion

bacterial diseases

Bacterial Diseases of Plants

bacterial encephalitis

bacterial endocarditis

bacterial endoenzyme

bacterial endospore

bacterial enzyme

Bacterial Fertilizers

Bacterial Filters

Bacterial genetics