500 - Williopsis saturnus var. mrakii

Strain Information:

NCYC Number:500
Name:Williopsis saturnus var. mrakii
Depositor:L.J. Wickerham, NRRL.
Deposit Name:Hansenula mrakii, Williopsis mrakii
Deposit Month:April
Deposit Year:1957
Equivalent Strain Designations:ATCC 10743, CBS 1707, CCRC 21416, DBVPG 6729, IFO 0897, JCM 3614, NRRL Y-1364, VKM Y-173.
Habitat:Soil, Dobodura area, Papua New Guinea.
References:Wickerham, US Dep.Agric.Tech.Bull.No. 1029, Washington 1951, p.40.^Naumov et al., Dokl.Acad.Nauk.SSSR 259: 718-722, 1981.^Aono, System.Appl.Microbiol. 13: 394-397, 1990 (alkali tolerance)^Young, The Yeasts (eds Rose & Harrison), London: Academic Press, 1987.^Young & Yagiu, A.v.Leeuwenhoek 44: 59-77, 1978 (killer).^Tsuchiya et al., Jpn.J.Exp.Med. 28: 105-114, 1958 (serotype).^Shimizu et al. 1985. Killer properties of wine yeasts and characterisation of Killer wine yeasts. Journal of Fermentation technology, 63, 421-429.^Hodgson VJ, Button D, Walker GM. Anti-Candida activity of a novel killer toxin from the yeast Williopsis mrakii. Microbiology. 1995 Aug;141 ( Pt 8):2003-12

Physical Characteristics:

Optimum Temperature: °
Miniumum Temperature: °
Maximum Temperature: °

Cells:

Shape:Oval
Min Broth Breadth:3
Max Broth Breadth:4
Min Broth Length:4
Max Broth Length:5
Min Agar Breadth:3
Max Agar Breadth:4
Min Agar Length:4
Max Agar Length:5
Arrangement:Pairs
Colour on Agar:Cream
Surface on Agar:Dull
Texture on Agar:Rough
Deposit in Broth:Non-Flocculent
Ring in Broth:Absent
Ring Colour:Unknown
Pellicle in Broth:Thin
Pellicle Appearance:Wrinkled
Pellicle Habitat:Climbing

Cell Division:

Budding:Multipolar
Fission:Absent

Filamentous Growth:

Pseudomycelium:Absent
Pseudomycelium Branch:N/A
Pseudomycelium Form:N/A
Blastospores:N/A
Blastospore Shape:N/A
Blastospore Location:N/A
Blastospore Habit:N/A
True Mycelium:Absent
Clamp Connections:Absent

Asexual Spores:

Ballistospores:Absent
Arthrospores:Absent
Endospores:Absent
Chlamydospores:Absent

Sexual Spores:

Ascospores:Present
Ascospore Shape:Saturn
Ascospore Wall:Smooth
Ascospore No Per Ascus:Unknown
Ascus Shape:Unknown
Conjugation:Absent
Teliospores:Absent
Teliospore Shape:N/A

Miscellaneous:

Assay:Unknown
Salt Tolerant:Unknown
Killer:Yes
Plasmid:No

Semi-Anaerobic Fermentation:

Glucose:+
Galactose:-
Sucrose:-
Maltose:-
Cellobiose:Unknown
Trehalose:Unknown
Lactose:-
Melibiose:-
Raffinose:-
Melizitose:Unknown
Inulin:Unknown
Soluble Starch:Unknown
Xylose:Unknown
A M D Glucoside:Unknown

Aerobic Utilistaion and Growth:

Glucose:+
Galactose:-
Sorbose:-
Sucrose:-
Maltose:-
Cellobiose:+
Trehalose:-
Lactose:-
Melibiose:Unknown
Raffinose:Unknown
Melizitose:-
Inulin:-
Soluble Starch:-
Xylose:Unknown
L Arabinose:-
D Arabinose:Unknown
Ribose:Unknown
Rhamnose:Unknown
Ethanol:Unknown
Glycerol:Unknown
Erythritol:-
Ribitol:-
Galactitol:Unknown
Mannitol:Unknown
Sorbitol:Unknown
A M D Glucoside:Unknown
Salicin:Unknown
Lactic Acid:Unknown
Succinic Acid:Unknown
Citric Acid:Unknown
Inositol:Unknown
Gluconolactone:Unknown
Glucosamine:Unknown
Methanol:Unknown
Xylitol:Unknown

Aerobic Utilistaion and Growth - Sole Sources of Nitrogen:

NH4 2SO4:Unknown
KNO3:+
Ethylamine:Unknown
Cadaverine:Unknown
Lysine: 

Other:

Vitamin Free Growth:+
Cyclohex 100ppm:Unknown
Cyclohex 1000ppm:Unknown
50% Glucose Growth:Unknown
60% Glucose Growth:Unknown
Lipolytic:-
Acid Production�:Unknown
37c Growth:Unknown
40c Growth: 
Arbutin Hydrolysis:+
Urease Activity:Unknown
Starch Production:-
Acid Tolerant:Unknown

Information:

Information:Type strain of Hansenula mrakii.^Killer character K9Rj (Young), K9R9 (Wickner).

Sequence Data:

Sequence Data:Data not available.