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| Articles about Bacterial |
| About Cellulitis - bacterial skin infection | | 2008-01-17 18:11:38 | | Signs and symptoms
Medical advice
Treatment
Causes
Diagnosis
Prevention
Risk factors
Complications
Cellulitis (sel-u-LI-tis) is a common, potentially serious bacterial skin infection. Cellulitis appears as a swollen, red area of skin that feels hot and tender, and it may spread rapidly.
Skin on lower legs is most commonly affected, though cellulitis can occur anywhere on your body or face. Infections on [...] | | By: Health blog | | |
| | Panama and Bacterial Fruit Rot disease | | 2007-12-31 00:20:00 | | Panama Disease (Fusarium Wilt)External symptoms:Characteristic yellowing of the lower or outer leaf blades which develops as a vbivid band along the margin and subsequently spreads inwards the midrib. The leaves undergo rapid wilting and within a day or two, the petiole buckles and the leaf hangs down between the pseudostem and lamina until only the topmost or innermost leaf remains.Internal symptoms:When a panama diseased rhizome is cut transversely, the vascular strands will be be seen as yellow, red or brownish dots and streaks. In advanced infections, the diseases vascular strands of the rhizome are more numerous and deeply -stained, dark red and reddish brown colors eventually becoming purple and black.Other symptoms and characteristics:1) common in Latundan and Lacatan varieties2) Race 4 is very destructive to Cavendish and Williams3) Presence of the disease is determined through the external and internal symptoms4) Takes about two months from the rootlet infection to infection5) Young plants, first signs of the disease are the yellowing of the unfurled leaf and eventually dies of.6) Oher plants, leaves turn yellow and leaf lamina drops downward even when soil moisture is adequate.7) In some banana growing areas there are two cloned groups of cultivars which differ in symptoms.a) Yellowing strain or "Inoraratum" is characterized by the intense yellowing of erect leaves. Observed in Costa Rica, Pananma, Columbia and Ecuador.b) "Odoradum" infected plants do not become yellow but suffer from collapse of the petiole. Cut stems smell strongly.8) Most reliable diagnostic symptoms are internal9) Base of the infected plant vertically cut reveal numerous brown, violet and black discolorations running in all directions through the corm and upwards into the leaf bases and petioles.10) Vascular bundles are stained.11) Pseudostem somtimes split upwards.12) Disease is soil borne.Control:1) Race 1 is what we have and not destructive2) Eradication and burning to ashes of inf | | By: Banana Industry Tour | | |
| | Breath test can discriminate between a bacterial overgrowth and IBS | | 2007-12-19 11:35:07 | | The gastrointestinal (GI) tract is colonized by bacteria immediately after birth; Escherichia coli, Streptococci and Clostridi are the first bacteria harboured by the colon, followed by anaerobic Enterococci, Lattobacilli and Bacteroidi. These commensal bacteria inhabiting the human intestine (i.e., intestinal microflora) participate in the development and maintenance of gut sensory and motor functions, including the promotion of intestinal propulsive activity; on the other hand, intestinal motility represents one of the major control systems of gut microflora, though the sweeping of excessive bacteria from the lumen. There is emerging evidence indicating that changes in this bi-directional interplay contribute to the pathogenesis of gut diseases, such as small intestinal bacterial overgrowth (SIBO).
read more | | By: Machines Like Us - Science and Technology News | | |
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| | Evolution: Bacterial Mutation in Stationary Phase | | 2006-07-25 12:30:14 | | [After clicking on the above link, click on "Full Text"]Evolution: Bacterial Mutation in Stationary PhasePaul Sniegowski, Current Biology, March '04Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USAAbstract:A recent study indicates that the genomic mutation rate of the gut bacterium Escherichia coli is substantially higher in nongrowing than growing cultures. These findings are important in the light of the ongoing controversy over the generality and robustness of stationary phase mutagenesis and its evolutionary implications.Article Outline begins:The genomic mutation rate is a fundamental evolutionary parameter of any population, determining the rate of influx of new deleterious and beneficial alleles. Because most mutations are likely to be harmful to fitness, DNA repair and proofreading systems have probably evolved so as to minimize rates of mutation. Even the microbial extremophiles that normally inhabit harsh and potentially mutagenic environments seem to have low genomic mutation rates, suggesting that selection almost always puts a premium on the faithful maintenance and transmission of genetic information. Nonetheless, geneticists have long known that some environmental extremes can elevate mutation rates; indeed, this is the basis for the use of DNA damaging agents to induce mutations for study.[email if the link stops working]technorati tags: e.+coli, controversy, stationary, phase, mutagenesis, evolutionary, population, bacterium, alleles, dna, extremophiles, selection, mutations
| | By: Evolution Research - Main Blog | | |
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