What can you tell me about Chemoautotrophic Bacteria?
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Chemotrophs are organisms that obtain energy by the oxidation of electron donating molecules in their environments. These molecules can be organic (organotrophs) or inorganic (lithotrophs). The chemotroph designation is in contrast to phototrophs which utilize solar energy. Chemotrophs can be either autotrophic or heterotrophic.\n\nChemoautotrophs (or chemotrophic autotroph), in addition to deriving energy from chemical reactions, synthesize all necessary organic compounds from carbon dioxide. Chemoautotrophs generally only use inorganic energy sources. Most are bacteria or archaea that live in hostile environments such as deep sea vents and are the primary producers in such ecosystems. Scientists believe that the first organisms to inhabit Earth were chemoautotrophs that produced oxygen as a by-product and later evolved into both aerobic, animal-like organisms and photosynthetic, plant-like organisms. Chemoautotrophs generally fall into four groups: methanogens, halophiles, sulfur reducers, and thermoacidophiles. \nChemoheterotrophs (or chemotrophic heterotrophs) must ingest organic building blocks that they are incapable of creating on their own. Most chemoheterotrophs derive energy from organic molecules like glucose. \nThe names of these primary nutritional groups are built from Greek roots. "Chemo" means "chemical" and "troph" means "nourishment". "Auto" means "self" and "hetero" means "other".
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Wow, this answer is gonna be a long one...   There are numerous studies of the charting of the positions of genes on a DNA molecule or chromosome and the distance between genes of Escherisia Coli. It basically comes down to good old conjugation and transduction.  Having sequenced the E. coli K-12 genome, scienctists are creating a knockout of every gene, a clone of every ORF, and an extensive gene expression data set under a variety of physiological conditions. These clones and data sets are made available freely to the community.  Scienctists have also sequenced six additional enterobacterial strains which are pathogens closely related to E. coli K-12, and many plasmids. The comparative genomics aim of this effort is to characterize the gene pool of horizontally transferred elements and virulence determinants known as the pathosphere.\n\nI put a reference on it so be sure to check it out yourself. \n\nA mutator gene, mutD5, whose phenotype is conditional, has been identified in Escherichia coli. By P1 transduction it has been shown to lie at about 5.7 min on the chromosome, being co-transduced with proA and argF. In rich medium, streptomycin- and nalidixic acid-resistant mutation frequencies are 50 to 100 times higher than those in minimal medium. In minimal medium, the mutD5-induced mutation frequencies are still 50 to 100 times above co-isogenic wild-type (mut+) levels. Similar results were obtained with all markers tested. Mutant frequencies can be raised by thymidine in the medium at concentrations as low as 0.04 μM, or by the endogenous generation of thymidine from thymine plus a deoxyribosyl donor. Deoxyadenosine, various ribonucleosides, thymine, and 2-deoxyribose do not stimulate mutation. None of these effects are related to growth rate, since growth rate and mutation rate can be decoupled completely.\n\nThe gntP gene, located between the fim and uxu loci in Escherichia coli K-12, has been cloned and characterized. Nucleotide sequencing of a region encompassing the gntP gene revealed an open reading frame of 447 codons with significant homology to the Bacillus subtilis gluconate permease. Northern (RNA) blotting indicated that the gntP gene was monocistronic and was transcribed as an mRNA with an apparent molecular size of 1.54 kb. The transcriptional start point was determined by primer extension analysis. The gntP gene was found to be under catabolite repression and was not induced by gluconate. Also, expression seemed to be stringently controlled. Several observations indicated that the GntP protein is an inner membrane protein; it contains characteristic membrane-spanning regions and was isolated predominantly from the inner-membrane fraction of fractionated host cells. A topology analysis predicted a protein with 14 membrane-spanning segments. The inability of a mutant strain to grow on gluconate minimal medium could be relieved by introduction of a plasmid encoding the gntP gene. Finally, the kinetics of GntP-mediated gluconate uptake were investigated, indicating an apparent Km for gluconate of 25 microM.
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Microbiologists also classify bacteria according to whether or not they require oxygen to survive. Bacteria that require oxygen are called aerobic bacteria, or aerobes. Bacteria that live without oxygen are called anaerobic bacteria, or anaerobes. Both aerobes and anaerobes can be either phototrophic or nonphototrophic. Can live in the human body or in the enviroment
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becouse each strain of bacteria have their own specialized DNA sequence
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Rhizobium bacteria are in the root nodules or legumes.
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well i am into engineering,,,,so don know much abt biology.\nU can check this website for some good info.\nwww.wikipedia.org
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This link has an extensive information about Aerobic and Anaerobic Bactria ( gram + & Gram -).\nIt is really a useful source:-\nhttp://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pubmed&pubmedid=9618450\nAlso, Gram-negative anaerobes and some of the infections they produce include the following genera:\n• Bacteroides (the most commonly found anaerobes in cultures; intra-abdominal infections, rectal abscesses, soft tissue infections, liver infection)\n• Fusobacterium (abscesses, wound infections, pulmonary and intracranial infections)\n• Porphyromonas (aspiration pneumonia, periodontitis)\n• Prevotella (intra-abdominal infections, soft tissue infections) Gram-positive anaerobes include the following:\n• Actinomyces (head, neck, pelvic infections; aspiration pneumonia)\n• Bifidobacterium (ear infections, abdominal infections)\n• Clostridium (gas, gangrene, food poisoning, tetanus, pseudomembranous colitis)
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Archaea are associated with being extremeophiles - that is living in an extreme environments where other bacteria are thought to be unable to live- such as very hot, acidic, or very cold. They are also thought to be some of the most ancient organisms on earth.  A good source of info and pictues is at http://www.theguardians.com/Microbiology/gm_mbm04.htm\n\nBacteria is now in a different domain than the archeaea.  This is the " classic" bacteria we think of and have known about for quite awhile. You can learn more about bacteria from http://www.ucmp.berkeley.edu/bacteria/bacteria.html if you like.
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Photosynthetic organisms, or that other kind that works off of heat vents on the ocean floor (thermophyllic bacteria).\n\nAnd I was reminded of a good word... autotrophs\n\nAn autotroph (from the Greek autos = self and trophe = nutrition) is an organism that produces organic compounds from carbon dioxide as a carbon source, using either light or reactions of inorganic chemical compounds, as a source of energy. An autotroph is known as a producer in a food chain. Plants and other organisms that carry out photosynthesis are phototrophs (or photoautotrophs). Bacteria that utilize the oxidation of inorganic compounds such as hydrogen sulfide, ammonium or ferrous iron as an energy source are chemoautotrophs.\n\nAloha
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1.What bacteria are we talking about (E.coli? Which strain?)\n2.There is no such standard solution for any type of bacteria.\n3.Why on earth would you need such a dilution? \n4.What type of facilites do you have access to (You can isolate single cells by FACs provided you have a proper marker and this expensive equipment)
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Well, apparently, they grow quite well on certain caterpillars ...\n\n:-P\n\n... but, seriously, AFAIK the bacterium is not too fussy, or (as we microbiologists generally call it) "fastidious" about its growth requirements.  I assume it will grow on any "minimal" medium, that is, maybe a bit of Yeast Exatract, + / or tryptone or meat extract, with or without addition of agar.  You did not say whether you wanted a liquid or solid growth medium.\n\nWe find Bacillus species as reasonably - common contaminants from the environment.  Our media are designed to isolate bacteria important to human health, so they are more nutritious than Bacillus thuringiensis would need (AFAIK).\n\nIf you do grow it, be careful with it; many members of this genus produce toxins.  I suspect that Bt toxin might not be very good for humans, too.  IMO, it is probably unwise to try to grow bacteria, unless you have appropriate training and laboratory equipment.  For example, you need to sterilise media and equipment, and properly dispose of wastes, in a safe fashion, and according to local bylaws etc.\n\nI am a microbiologist.
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if i remeber correctly archaebacteria are the ones that live when none should. like near volcanic vents on the ocean floor and in the subzero of antartica and the like. so if one can be found to survive in a toxic area they can be used to clean up a place. thats the only thing i can think of in economic terms.
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Bacteria are self-supporting life forms.  They live.  Viruses are non-living hijackers that have to hijack other cells to live.  They are just DNA bits or possibly RNA, and by themselves they don't do anything.  But they get into cells and re-program the cells to make more viruses, instead of doing whatever that cell was doing before.
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If by morphology you mean "Gram-negative rod" then you'd get false positives.  All enterobacteriaceae are Gram-negative rods, but not all Gram-negative rods are enterobacteriaceae.\n\nColony morphology won't necessarily help a lot, either, as I don't think that there is a consistant enteric colony shape.
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thermoacidophiles and methanogens are types of archaebacteria and there is one more type called halophiles.\n\n1. thermoacidophiles : these are temperature and acid-loving archaebacteria.these organisms grow at high temperature of 55 degrees celius to 59 degrees celsius and a pH of 2.the cells undergo lysis at neutral pH.thermoplasma ,thermoproteus,sulfolobus are the common thermoacidophiles.in these thermoplasma and thermoproteus are pleomorphic(spherical to filamentous) common in pile of burning coal refuse. the genus sulfolobus is facultative autotroph growing better at 70 degrees celsius to 87 degrees celsius and at a pH of 2. in nature these are predominant in acidic hot springs,sulfur springs and in hot acid soils.a specialized cell membrane in these bacteria composed of a monolayer of long chain hydrocarbons connected at both ends to glycerol by other linkage enable them to grow in hot-acid environment.\n \n2. methanogens: they are the methane-producers.the methanogens are obligant anaerobes occur in marshy areas like swamps,ponds,lake mud,among the microorganisms in the rumen of cattles and anaerobic sludge digesters in sewage treatment plants.these bacteria convert fermentation products of other bacteria like CO2 , H2,formic acid and acetic acid into methane and CO2 or only methane.\n\n3.halophiles: these are salt-loving or halophilic archaebacteria.they occur in salt lakes and salty fish.e.g. halococcus and halobacterium.these require 17 - 23 % NaCl for good growth.if the concentration of NaCl falls below 10%,the cells lyse.these organisms contain red or orange pigment called bacteriorhodopsin.the bacteriorhodopsin accumulate as patches in the cytoplasmic membrane and protect the cell against the damaging effect of sunlight. the pigment also utilises the light energy to run their metabolic activities by producing ATP . however,these cannot convert CO2 to sugars as in photosynthesis.
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here are lists and pictures\n\nhttp://www.buddycom.com/bacteria/gpc.html
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yeah, they are right, heres a site with some info:\nhttp://www.antibiotics-info.org/bact02.asp