Bacteria
What are Bacteria?
Bacteria are microscopic organisms whose single cells have neither a membrane-bounded nucleus nor other membrane-bounded organelles like mitochondria and chloroplasts.
Bacteria Divide and Multiply
Bacteria are all around us. Given good growing conditions, a bacterium grows slightly in size or length, a new cell wall grows through the center forming two daughter cells, ...
Bacterial conjugation is the often regarded as the bacterial equivalent of sexual reproduction or mating; however it is not actually sexual as it does not involve the fusing of gametes and the creation of a zygote, ...
Bacterial
(Science: microbiology) bacteria are group of micro-organisms that are a single cell approximately 1 micron in transverse diameter. Some bacteria cause disease in man, requiring treatment with an antibiotic.
Bacterial conjugation is the transfer of genetic material between bacteria through direct cell-to-cell contact.
Bacteria
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(Redirected from Eubacteria) ...
Bacterial Artificial Chromosome (BAC)
BAC is a cloning vector propagated as a mini-chromosome in a bacteria host. Inserts of 100-300 kb can be cloned in BAC vectors.
Related ...
Search for bacteria in these other databases too
Definition of bacteria : ...
BACTERIA BASICS - THEY ARE ALIVE!
Bacteria are the simplest of creatures that are considered alive. Bacteria are everywhere. They are in the bread you eat, the soil that plants grow in, and even inside of you.
Bacteria
Bacteria are small single-celled organisms. Bacteria are found almost everywhere on Earth and are vital to the planet's ecosystems. Some species can live under extreme conditions of temperature and pressure.
Bacteria Cell Structure
They are as unrelated to human beings as living things can be, but bacteria are essential to human life and life on planet Earth.
Bacteria are responsible for causing a number of serious human diseases. Many of these diseases depend on high human population density for their success.
nitrifying bacteria
those capable of changing ammonia into nitrites, or nitrites into usable nitrates
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Bacteria: Tiny one-celled organisms.
Bases: The molecular building blocks of DNA and RNA: adenine, cytosine, guanine, thymine, and (in RNA only) uracil. In DNA, A attaches only to T, and C attaches only to G.
Bacteria
One of two prokaryotic domains, the other being the Archaea.
bacteriophage ...
Bacteria
Very small, single-celled life forms that can reproduce quickly. Bacteria are found throughout nature and can be beneficial or destructive. [Talking Glossary]
Base ...
bacteria: Very small, single-celled life-forms that can reproduce quickly.
bases: Distinct chemical ingredients found in the genetic material of all life-forms.
BACTERIA ARE THE CHIEF CAUSE OF STOMACH ULCERS!
When Australian researcher Barry Marshall, MBBS, first suggested in the early 1980s that stomach ulcers were caused by the bacteria Helicobacter pylori, ...
bacteria - microscopic procaryotic organisms, which commonly have a spherical, rod, or spiral shape but are sometimes more complex (Glossary of PM) ...
Bacterial Artificial Chromosomes
Artificial vectors have been developed that can be used for inserting large segments of DNA. These vectors are called bacterial artificial chromosomes.
Transgenic Plants ...
Bacteria in biofilms turn on genes that help them resist antibiotics?
Bacteria & antibiotics
Pseudomonas bacteria
The cell wall is the target for antibiotics, as well as for carbohydrates that our immune system uses to detect infection.
Eubacteria The subunit of the Monera that includes the true bacteria such as E. coli. One of the three major groups of prokaryotes in the Kingdom Monera. The eubacteria have cell walls containing peptidoglycan.
Eubacteria The most common form of extant prokaryotes.
Excinuclease uvrabc enzyme that removes thymidine dimers by hydrolyzing the damaged DNA strand at sites on either side of the dimer site.
cyanobacteria Blue-green bacteria; unicellular or filamentous chains of cells that carry out photosynthesis.
cyanobacteria
a large and varied group of bacteria which possess chlorophyll a and which carry out photosynthesis in the presence of light and air with concomitant production of oxygen.
Cyanobacteria: Unicellular, photosynthetic (photo-autotroph) prokaryote (in the Kingdom Monera). Formerly known as blue-green algae. It contains chlorophyll a but not chloroplast. They reproduce by fission and never sexually.
Archaebacteria A phylum of organisims distinct from both prokaryotes and eukaryotes.
Ascertainment The method by which individuals (and families) come to attention for genetic study.
Bacterial RNA polymerase holoenzyme carries different determinants that contact different promoter DNA sequence elements. These contacts are essential for the recognition of promoters prior to transcript initiation.
bacteria Prokaryotic and unicellular microorganisms included in the kingdom Monera.
bacteriochlorophyll A type of chlorophyll found only in bacterial systems.
bacteriophage A virus that attacks bacterial cells.
Bacteria
Genus of unicellular organisms, some of which are pathogenic to man and animals. They are found living in close association with man, animals and their environments.
bacterial endospores - see endospores
bacteriophage - virus (phage) that infects a bacterium
chemotrophs - organisms that derive energy from inorganic reactions ...
Bacteria are commonly placed in The Moneran Kingdom. Monerans are considered by many scientists to be the oldest life forms on Earth, and the ancestors of all the other types of life that have since evolved.
Bacteria: Friend or Foe?
Bacterial Reproduction
Introduction to Viruses
Animal Viruses ...
Bacteria are easy to study. This is an advantage in evolutionary studies because we can see evolution happening in the laboratory.
Bacteria produce restriction enzymes for protection against invasion by foreign DNA such as phages. The bacteria's own DNA is modified in such a way as to prevent it from being clipped.
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- Bacterial enzymes that cleave DNA at very specific locations.
Restriction map
- A diagram that shows restriction sites (i.e., where a restriction enzyme cleaves DNA) in relation to one another.
BAC bacterial artificial chromosome
BACR British Association for Cancer Research
BCM Baylor College of Medicine
BDG Batten's disease gene
BER Biological and Environmental Research
BIO Biotechnology Industry Organization ...
BAC Bacterial artificial chromosome. Used for cloning DNA fragments between 100-200 kb in length. Based on a naturally occurring F-factor plasmid from Esherichia.coli.
BAC
See bacterial artificial chromosome.
Related Terms:
Bacterial artificial chromosome (BAC) ...
COMPETENT - Bacterial cells which are capable of accepting foreign extra-chromosomal DNA. There are a variety of processes by which cells may be made competent.
COMPLEMENTARY - See BASE PAIR.
blackarm. Bacterial blight lesions on stems.
blank. Nut with no kernel-consists of only the collapsed pellicle (skin).
blanking. Producing no grain or seed (used to describe individual florets of the rice panicle).
Rhizobia. Bacteria in a symbiotic relationship with leguminous plants that results in nitrogen fixation. See Nitrogen fixation.
Rhizosphere. The soils region on and around plant roots.
Ribozyme. See Catalytic RNA.
Fecal coliform bacteria Technically, all the facultative anaerobic gram negative non-spore forming rod shaped bacteria that fermet lactose in EC medium with gas production within 24h at 44.5 degrees C.
Lysogen
A bacterial cell carrying a phage genome as a repressed prophage.
Lysogenic cycle
The pattern of phage infection that involves integration of the phage DNA into the host chromosome.
Originating from a bacterial plasmid; a YAC contains additionally a yeast centromeric region (CEN); a yeast origin of DNA replication (ARS); and two telomere regions (TEL). YACs are capable of cloning very large pieces of DNA.
An antibiotic derived from penicillin that prevents bacterial growth by interfering with cell wall synthesis. Amplify.
plasmid double-stranded, circular, bacterial DNA into which a fragment of DNA from another organism can be inserted. Pleiotropy -- the phenomenon of variable phenotypes for a number of distinct and seemingly unrelated phenotypic effects.
Phage A virus for which the natural host is a bacterial cell.
Physical map A map of the locations of identifiable landmarks on DNA (e.g., restriction enzyme cutting sites, genes), regardless of inheritance. Distance is measured in base pairs.
A bacterially derived protein that recognizes specific, short nucleotide sequences and cuts DNA at those sites. Bacteria contain over 400 such enzymes that recognize and cut over 100 different DNA sequences.
Bacteria have a single membrane and a peripheral wall made of peptidoglycan (proteins + oligosaccharides). Both structures, the membrane and the wall, enclose the cytosol.
Prokaryote: Organisms, namely bacteria and cyanobacteria (formerly known as blue-green algae), characterized by the possession of a simple naked DNA chromosome, occasionally two such chromosomes, usually of circular structure, ...
Bacterium (plural: bacteria) A one-celled microorganism that contains no nucleus. Some bacteria are helpful, such as those in the intestines that help digest food, while others cause disease.
All plants, algae, and cyanobacteria which photosynthesize contain chlorophyll "a". A second kind of chlorophyll is chlorophyll "b", which occurs only in "green algae" and in the plants.
A phylogenetic tree of all living things, based on rRNA gene data, showing the separation of the three domains bacteria, archaea, and eukaryotes as described initially by Carl Woese.
Escherichia coli a species of fecal bacteria‚ a normal part of our intestinal flora which makes vitamins K and B-12 for us‚ but some strains of which may cause illness if ingested into the upper GI tract ...
Phage: A virus which infects a bacterial cell. Also called a Bacteriophage.
Purine: A nitrogen- containing, double ring compound that occurs in nucleic acids. In DNA molecules, the purines are adenine and guanine.
GMO stands for genetically modified organism. This refers to bacteria or other microorganisms, or multicellular organisms such as plants and animals, whose genetic makeup has been altered by scientists.
phage - virus that infects bacteria; altered phage can be used as cloning vectors. (short for bacteriophage - "bacteria eater") ...
Spore: A reproductive structure developing in certain bacteria and fungi which is strongly resistant to environmental influences but which will become active under suitable conditions.
 See also: Organ, Cells, Trans, Protein, Human
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