| Hanseniaspora meyeri | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Saccharomycetes |
| Order: | Saccharomycetales |
| Family: | Saccharomycodaceae |
| Genus: | Hanseniaspora |
| Species: | H. meyeri |
| Binomial name | |
| Hanseniaspora meyeri Čadež, Poot, Raspor & M.Th. Smith 2003 [1] | |
Hanseniaspora meyeri is a species of yeast in the family Saccharomycetaceae. Samples of the species have been obtained worldwide from flowers, fruit flies, stem rot, and spoiled grape punch.
The first isolated sample of this species was isolated from the fruit of a soapberry plant in Hawaii. [1] The specific epithet "meyeri" was named in honor of Piet Meyer, a young South African scientist. [1]
Genetic sequencing shows that the species is very closely related to Hanseniaspora clermontiae . [1] [2]
Microscopic examination of the yeast cells in YM liquid medium after 48 hours at 25 °C reveals cells that are 2.5 to 12.5 μm by 1.5 to 6.0 μm in size, apiculate, ovoid to elongate, appearing singly or in pairs. Reproduction is by budding, which occurs at both poles of the cell. In broth culture, sediment is present, and after one month a very thin ring is formed. [1]
Colonies that are grown on malt agar for one month at 25 °C appear cream-colored, butyrous, glossy, and smooth. Growth is flat to slightly raised at the center, with an entire to slightly undulating margin. [1] The yeast forms poorly-developed pseudohyphae on cornmeal or potato agar. [1] [3] The yeast has been observed to form two to four hat-shaped ascospores when grown for at least two weeks on 5% Difco malt extract agar. [3]
The yeast can ferment glucose and cellobiose, but not galactose, sucrose, maltose, lactose, raffinose or trehalose. [1] It has a positive growth rate at 30 °C, but no growth at 35 °C. [1] [3] It can grow on agar media containing 0.1% cycloheximide and 10% sodium but growth on 50% glucose-yeast extract agar is weak. [1] It can grow on media with 2-Keto-d-gluconate as a sole carbon source. [3]
In addition to the fruit of the Sapindus plant in Hawaii where the initial sample was located, it has also been isolated from spoiled grape punch in Georgia, USA, from the flowers of the Schotia tree in South Africa, from stem rot in Clermontia species and from fruit flies on Sapindus berries in Hawaii. [1] It is not known whether it has any human pathogenic potential, but it can not grow at a normal body temperature. [3]
Mycobacterium cosmeticum is a rapidly growing mycobacterium that was first isolated from cosmetic patients and sites performing cosmetic procedures.
Herminiimonas glaciei is a species of ultramicrobacterium in the family Oxalobacteraceae. These small gram-negative cells have a variable number of long flagella at the ends and sides of their rod-shaped bodies. With dimensions of 0.5–0.9 by 0.3–0.4 µm, H. glaciei is roughly 10 to 50 times smaller than Escherichia coli. Discovered in 2009, the species was isolated from 120,000 years old glacial ice, 3,042 metres (1.9 mi) deep, from Greenland. It was revived after a long-term incubation—seven months of oxygen-free growth at 2 °C, followed by growth on agar plates at 5 °C for almost five months. DNA sequence analysis suggests that with a sequence similarity of 99.6%, H. glaciei is most closely related to H. saxobsidens, a species originally isolated from lichen-colonized rock. Loveland-Curtze, head of the team of scientists from Pennsylvania State University who found the species, speculates that it may offer insight into the existence of organisms in extraterrestrial habitats.
Hanseniaspora is a genus of yeasts. The name Kloeckera is applied to its anamorph form. They are typically apiculate (lemon-shaped) in shape and often found in grape musts pre-fermentation.
Sporobolomyces koalae is a species of fungus in the order Sporidiobolales. It is an anamorphic yeast. Strains of the yeast were isolated from nasal swabs from three of five captive Queensland koalas kept at the Kobe Oji Zoo in Kobe, Japan. Swabs from three zoo keepers were examined as well, but tested negative for the presence of the yeast. It is not suspected to be pathogenic, as the koalas from which it was isolated were healthy.
Hanseniaspora guilliermondii is a species of yeast in the family Saccharomycetaceae. In its anamorph form, it is called Kloeckera apis.
Haloferax larsenii is a gram-negative, aerobic, neutrophilic, extremely halophilic archaeon. It was named in honor of Professor Helge Larsen, who pioneered research on halophiles.
Aspergillus marvanovae is a species of fungus in the genus Aspergillus which has been isolated from water with high boracic acid anions from the Dukovany nuclear power station in the Czech Republic. It is from the Fumigati section. Several fungi from this section produce heat-resistant ascospores, and the isolates from this section are frequently obtained from locations where natural fires have previously occurred. The species was first described in 2014. Aspergillus marvanovae produces apolar indoloterpenes.
Dokdonia is a genus of bacteria in the family Flavobacteriaceae and phylum Bacteroidota.
Propionispira raffinosivorans is a motile, obligate anaerobic, gram-negative bacteria. It was originally isolated from spoiled beer and believed to have some causative effect in beer spoilage. Since then, it has been taxonomically reclassified and proven to play a role in anaerobic beer spoilage, because of its production of acids, such as acetic and propionic acid, during fermentation
Kazachstania yasuniensis is a recently isolated yeast. This organism is part of the genus Kazachstania, which can be found in a large variety of habitats such as fermented foods, animals, wastewater, et cetera.
Blastobotrys elegans is a species of fungus.
Arthrobacter bussei is a pink-coloured, aerobic, coccus-shaped, Gram-stain-positive, oxidase-positive and catalase-positive bacterium isolated from cheese made of cow´s milk. A. bussei is non-motile and does not form spores. Rod–coccus life cycle is not observed. Cells are 1.1–1.5 µm in diameter. On trypticase soy agar it forms pink-coloured, raised and round colonies, which are 1.0 mm in diameter after 5 days at 30 °C The genome of the strain A. bussei KR32T has been fully sequenced.
Hanseniaspora clermontiae is a species of yeast in the family Saccharomycetaceae. It was first isolated from stem rot occurring in a lobelioid plant in Hawaii, and may be endemic to the Hawaiian Islands.
Hanseniaspora lachancei is a species of yeast in the family Saccharomycetaceae. It is associated with fermenting agave juice and a tequila production facility in Mexico.
Hanseniaspora opuntiae is a species of yeast in the family Saccharomycetaceae. It has been isolated from locations worldwide, on grape berries and on prickly pear cacti.
Hanseniaspora occidentalis is a species of yeast in the family Saccharomycetaceae. In its anamorph form, it was called Kloeckera javanica. It has been isolated in the wild from soil samples and vineyards. Samples of a variant have been isolated from orange juice and rotten oranges. It has demonstrated potential as an organism to reduce malic acid in wine production.
Hanseniaspora gamundiae is a species of yeast in the family Saccharomycodaceae. It has been isolated from the fruiting bodies of Cyttaria hariotii mushrooms in Patagonia and is likely responsible for the early stages of fermentation of an alcoholic chicha produced from the mushrooms.
Hanseniaspora osmophila is a species of yeast in the family Saccharomycetaceae. It is found in soil and among the bark, leaves, and fruits of plants, as well as fermented foods and beverages made from fruit.
Hanseniaspora pseudoguilliermondii is a species of yeast in the family Saccharomycetaceae. Originally isolated from orange juice concentrate, it has been found on fruit and fruit juices in locations around the world. It has also been observed forming hybrids with Hanseniaspora opuntiae.
Tremella yokohamensis is a species of fungus in the family Tremellaceae. It produces white, foliaceous, gelatinous basidiocarps and is parasitic on other fungi on dead wood of broad-leaved trees. It was originally described from Japan.