|
|
|
|
|
|
Gonococcal ophthalmia develop within 7 days of birth of a baby to an affected mother and is usually bilateral with intense conjunctivitis, copious purulent secretion and lid edema. Without proper urgent treatment, ulceration of the cornea leading to scarring will seriously affect vision. Complications In men, epididymitis, prostatitis and urethral stricture can result from untreated gonorrhoea. In women, Bartholinitis and abscess formation (causing trouble walking), pelvic inflammatory disease (PID) and Fitz-Hugh-Curtis Syndrome can occur. The most common result of untreated gonorrhea is PID, a serious infection of the female reproductive tract. PID causes scarring of the fallopian tubes which leads to increased risks of causing an ectopic pregnancy as a fertilized egg may not be able to pass through the narrowed, scarred fallopian tube. Ectopic pregnancies are serious conditions which are potentially life-threatening to the mother. There are several different genera of rhizobia. All of them belong to the Rhizobiales, a probably-monophyletic group of proteobacteria. Within that group, however, they are scattered among several different families: Agrobacterium is a closer relative of Rhizobium than the rhizobia that nodulate soybean (and may not really be a separate genus). The genes responsible for the symbiosis with plants, however, may be closer than the organisms themselves, acquired by horizontal transfer rather than from a common ancestor. The legume-rhizobium symbiosis is a classic example of mutualism, but its evolutionary persistence is actually somewhat surprising. Because several unrelated strains infect each individual plant, any one strain could redirect resources from nitrogen fixation to its own reproduction without killing the host plant upon which they all depend. But this form of cheating should be equally tempting for all strains, a classic tragedy of the commons. Click on following items to see more information: Anaerobic bacterium, Antibiotic, Antibiotic, Antibacterial, Bacilli, Bacilli, Bacterium, Bacterial, Phages, Beta lactamase, Burkholderia, C. tropicalis, Cephalosporin, Clostridium, Denitrification, E. coli, E. coli, E. coli, E. coli, E. coli, Enterococcus, Fermentation, Yeast, Growth medium, Halophilic bacteria, Listeria, Bacterial, Bacterial, Morganella, Paenibacillus, Prokaryote, P. aeruginosa, Rhizobacteria, Saccharomyces cerevisiae, Saccharomyces, Salmonella typhimurium, Shigella, S. aureus, Streptococcus, Streptococcus, Vibrio, Yeast The causal pathogen is Erwinia amylovora, a Gram-negative bacterium in the family Enterobacteriaceae. Pears are the most susceptible, but apples, crabapples, quinces, hawthorn, cotoneaster, pyracantha, raspberry and some other rosaceous plants are also vulnerable. The disease is believed to be indigenous to North America, from where it spread to most of the rest of the world. Fire blight is not believed to be present in Australia. Fire blight is a systemic disease. The term 'fire blight' describes the appearance of the disease, which can make affected areas appear blackened, shrunken and cracked, as though scorched by fire. Primary infections are established in open blossoms and tender new shoots and leaves in the spring when blossoms are open. Honeybees and other insects, birds, rain and wind can transmit the bacterium to susceptible tissue. Injured tissue is also highly susceptible to infection, including punctures and tears caused by plant-sucking or biting insects. The myxobacteria are a group of bacteria that predominantly live in the soil. The myxobacteria have very large genomes, relative to other bacteria, e.g. 9-10 million nucleotides. Polyangium cellulosum has the largest known (as of 2003) bacterial genome, at 12.2 million nucleotides. Myxobacteria are included among the proteobacteria, a large group of Gram-negative forms.
|
© 2005
Transgalactic Ltd (manufacturer of Bioscreen C software) |
Privacy Statement | P.O. Box
1393, 00101 Helsinki, Finland,
Last modified: May 25, 2005
| ||||||
