They are unicellular and microscopic ●
They are also called bacteria group
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They have cell wall that are made of peptidoglycan ●
They have varied shapes
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Basic Shapes of Bacteria
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1.) Cocci
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They are differently arranged ●
They can form pairs
(diplococcus), chains
(streptococcus), or clusters (staphylococcus)
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They are spherical in shape 2.) Bacilli
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They can also occur in chains (streptobacillus)
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They are spherical in shape 3.) Spirilla
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They are spiral in shape
Bioremediation
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“Oil-eating bacteria”
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Scientists at University of the PhilippinesDiliman’s Molecular Microbiology
Laboratory have identified a number of bacteria which can help solve the problem of oil spills in oceans and seas through this technology. These are Pseudomonas aeruginosa, Acinetobacter baumanii,
Paenibacillus thiaminolyticus, Bordetella bronchiseptica and Lysinibacillus sphaericus. ●
Another group of bacteria, the cyanobacteria are plantlike because they have chlorophyll-containing cells.
Most of them are singlecelled, some form filaments, while others form spores.
Cyanobacteria grow in ditches, esteros, or in moist places like gardens and
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In Northern Luzon, people eat raw Tab-tab (Nostoc) as salad. Spirulina cells are rich in protein, thus, have been grown to produce
Single Cell Protein (SCP). It is used as swine and cattle feed and is also recommended as food for humans. ●
Examples of cyanobacteria are
Lyngbya, Microcoleus,
Oscillatoria, Nostoc, and
Spirulina.
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Anabaena azollae, another cyanobacterium is important in agriculture. It converts nitrogen in air into compounds usable by plants for growth and development.
The same being done by the
Rhizobium group of bacteria.
They are present in the root nodules of legumes.
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Certain bacteria, like
Bacillus thuringiensis, have been developed into a microbial pesticide. It is used to control pests and insects carrying disease-causing BAD BACTERIA
LEPTOSPIROSIS
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