A microorganism, or microbe, is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells.
Sourdough or sourdough bread is a bread made by the fermentation of dough using wild lactobacillaceae and yeast. Lactic acid from fermentation imparts a sour taste and improves keeping-qualities.
A mycotoxin is a toxic secondary metabolite produced by fungi and is capable of causing disease and death in both humans and other animals. The term 'mycotoxin' is usually reserved for the toxic chemical products produced by fungi that readily colonize crops.
Torulaspora delbrueckii is a ubiquitous yeast species with both wild and anthropic habitats. The type strain of T. delbrueckii is CBS 1146T, equivalent to CLIB 230 or ATCC 10662, etc.. The type strain of T. delbrueckii CBS 1146 T was sequenced in 2009, and is composed of 8 chromosomes in addition to a mitochondrial genome.
Priestia megaterium is a rod-like, Gram-positive, mainly aerobic, spore forming bacterium found in widely diverse habitats. It has a cell length up to 100 μm and a diameter of 0.1 μm, which is quite large for bacteria. The cells often occur in pairs and chains, where the cells are joined by polysaccharides on the cell walls.
Staphylococcus is a genus of Gram-positive bacteria in the family Staphylococcaceae from the order Bacillales. Under the microscope, they appear spherical (cocci), and form in grape-like clusters. Staphylococcus species are facultative anaerobic organisms.
Alicyclobacillus is a genus of Gram-variable, rod-shaped, spore-forming bacteria. The bacteria are able to grow in acidic conditions, while the spores are able to survive typical pasteurization procedures.
Thermoanaerobacter is a genus in the phylum Bacillota (Bacteria). Members of this genus are thermophilic and anaerobic, several of them were previously described as Clostridium species and members of the now obsolete genera Acetogenium and Thermobacteroides
Lactococcus piscium is a known fish pathogen affecting salmonid fish, which has nevertheless been found in other sources, such as packaged beef. Its type strain is NCFB 2778. L. piscium has shown promise as a bioprotective culture in the preservation of seafood. The bacterium has exhibited the ability to prevent sensory deterioration of food and inhibit the growth of other psychrophilic bacteria that may produce spoilage.
Tritrophic interactions in plant defense against herbivory describe the ecological impacts of three trophic levels on each other: the plant, the herbivore, and its natural enemies. They may also be called multitrophic interactions when further trophic levels, such as soil microbes, endophytes, or hyperparasitoids are considered. Tritrophic interactions join pollination and seed dispersal as vital biological functions which plants perform via cooperation with animals.
Microbacterium aurum is a bacterium of the family Microbacteriaceae.
Mucor plumbeus is a fungus in the family Mucoraceae that is very common, abundant and distributed worldwide. Mucor plumbeus is not known to be a plant or animal pathogen; however it is able to elicit an immune response in humans by activating the complement system. This species is commonly found in various types of soils over a range of pH, although alkaline soils seem more conducive to its growth. It is also known from the roots of wheat, oat and barley. In addition, M. plumbeus is a common fungal contaminant of indoor built environments. This species shares many similarities with M. racemosus, another fungus that belongs to the family Mucoraceae which is known to cause mucormycosis. Mucor plumbeus is a common spoilage agent of cheese, apples, apple cider and yogurt.
Macromonasbipunctata is a Gram-negative, colorless, and heterotrophic sulfur bacterium of the genus Macromonas. It is commonly found in sewage aeration tanks and caves where moonmilk has formed. In the 1920s, researcher Gicklhorn first discovered this organism under the name Pseudomonasbipunctata. After further study and culturing by Utermöhl and Koppe, in 1923, it was later renamed Macromonasbipunctata. This organism is thought to be non-pathogenic species. In fact, the moonmilk produced was referenced as a remedy for infections in the Middle Ages.
Microbacterium laevaniformans is a bacterium from the genus Microbacterium.
Microbacterium barkeri is a bacterium from the genus Microbacterium which has been isolated from domestic sewage and from smear from a cheeses. Microbacterium barkeri has the ability to degrade polyvinyl alcohol.
Microbacterium kitamiense is a heterotrophic, strictly aerobic, mesophilic and non-motile bacterium from the genus Microbacterium which has been isolated from waste water from a sugar-beet factory in Kitami in Japan. Microbacterium kitamiense produces polysaccharide. Microbacterium kitamiense has a high GC-content.
Chlorella vulgaris is a species of green microalga in the division Chlorophyta. It is mainly used as a dietary supplement or protein-rich food additive in Japan.
Christensenella hongkongensis is a species of clinically relevant gram-positive coccobacilli, first isolated from patients in Hong Kong and Canada in 2006. Although the species remains relatively rare, it has a high mortality rate of up to 50%. Christensenella is thought to be broadly distributed globally, as it has been isolated from patient blood cultures around the world including Hong Kong, South Korea, New Zealand, Canada, Sweden, France and Italy. Fewer than 15 cases of C. hongkongensis have been observed worldwide.
Brochothrix is genus of Gram-positive, nonmotile, catalase-positive, facultatively anaerobic bacteria that are nonmotile and form regular rod-shaped cells. The name Brochothrix is derived from the Greek noun brochos meaning loop and the Greek noun thrix meaning thread, from exponential-phase cultures which often show rods occurring in long, kinked, filamentous-like chains which bend and loop to give characteristic knotted masses. The genus is mostly associated with spoilage of high value food, such as meat and fish, caused by off-odor development. The type species is B. thermosphacta and the only other species I the genus is B. campestris. There is no evidence that any Brochothrix strain is pathogenic to humans or animals.
Brochothrix campestris is bacteria involved in the spoilage of meat. When it grows in food, the metabolic activities result in the production of metabolites associated with off-odors. B. campestris was first described in 1988 and was named from the Latin adjective campestris meaning field, campestris – from the field, because B. ’campestris was originally isolated from a soil sample.. Compared to the closely related B. thermosphacta, B. campestris is very rarely found from food samples.
