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Definition
Autoinduction is a gene regulatory mechanism involving small, diffusible signal molecules |
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Definition
A corboxysome is a polyhedral cellular inclusion of crystalline ribulose bisphosphate carboxylase, the key enzyme of the Calvin Cycle (Kreb's Cycle, citric acid cycle) |
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| What are enteric bacteria? |
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Definition
| Enteric bacteria are a large group of gram - rods characterized by a faculatatively aerobic metabolism and commonly found in the intestines of animals |
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Definition
| A methanotroph is an organism that si capable of oxidizing methane as an electron donor in energy metabolism |
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Definition
A methylotroph is an organism that is capable of oxidizing organic compounds that do not contain carbon-carbon bonds; if able to oxidise methane, also a methanotroph |
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| What are nitrifying bacteria? |
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Definition
| Nitrifying bacteria are chemolithotrphs capable of carrying out the transformation of NH3 to NO2- or NO2- to NO3- |
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Definition
Prosthecae are extrusions of the cytoplasm, often forming distinct appendages bounded by the cell wall |
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Proteobacteria are a major lineage of bacteria that contains a large number of Gram + rods and cocci |
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Term
| What are purple nonsulfur bacteria? |
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Definition
| Purple nonsulfur bacteria are a group of phototrophic bacteria containing bacterio-chlorophyll a or b that grows best as photoheterotrophs and has a relatively low tolerance for H2S |
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Term
| What are purple sulfur bacteria? |
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Definition
Purple sulfur bacteria are a group of phototrophic bacteria containing bacteriochlorophylls a or b and characterized by the ability to oxidise H2S and store elemental sulfur inside the cells |
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Term
| What are sulfate-reducing and sulfur-reducing bacteria? |
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Definition
Sulfate and sulfur bacteria are two groups of anaerobic bacteria that respire anaerobically with sulfate and elemental sulfur, respectively, as electron acceptors. Both produce H2S |
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Definition
Acid fastness is a property of Mycobacterium species in which cells stained with the bye basic fuchsin resist decoloration with acidic alcohol |
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Definition
A chlorosome is a cigar-shaped structure bounded by a nonunit membrane which contains the light-harvesting bacteriochlorophyll (c, d or e) in green sulfur bacteria and Chloroflexus |
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Definition
A consortium is a two-or-more membered association of bacteria usually living in an intimate symbiotic fashion |
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Definition
Cyanobacteria are bacterial oxygenic phototrophs that contain chlorophyll a and phycobilins not not chlorophyll b |
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Term
| What are green sulfur bacteria? |
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Definition
Green sulfur bacteria are anoxygenic phototrophs containing chlorosomes and bacteriochlorophyll c, d or e as light-harvesting chlorophyll |
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Definition
Heliobacteria are anoxygenic phototrophs which contain bacteriochlorphyll g |
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Term
| What is meant when a bacterial species is heterofermentive? |
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Definition
Heterofermentive means that in reference to lactic aicd bacteria, capable of making more than one fermentation product |
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Term
| What are homofermentive bacteira in regards to lactic acid fermentation? |
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Definition
Homofermentive bacteria produce only lactic acid as a fermentation product |
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Definition
Phycobilin is the light-capturing open chain tetrapyrole component of phycobiliproteins |
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| What is a prochlorophyte? |
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Definition
A prochlorophyte is a bacterial oxygenic phototroph that contains chlorophylls a and b but lacks phycobilins |
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Definition
A spirochete is a slender, tightly coiled Gram - bacterium characterized by possession of endoflagella used for motility |
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| What is a Stickland reaction? |
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Definition
| A Stickland reaction is the fermentation of an amino acid pair in which one amino acid serves as an electron donor and a second serves as an electron acceptor |
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