Search on : Yeasts species



General information

 Remarks:Cryptococcus skinneri
Characteristics given by other authors
Cell components include glucose, mannose and xylose (Gorin & Spencer 1970).
Mol % of G + C of nuclear DNA: 53.0 (Storck et al. 1969).
Chromosome bands:
Where found
Wood of trembling aspen Populus tremuloides in Canada, insect frass under bark of hemlock Tsuga heterophylla in the USA.
Other information
 Link to yeast book 2011:
 Taxon name:


 Number of ascospores per ascus:0 
 Asci evanescence:no asci 
 Asci shape:no asci 
 Ascospores with gelatinous sheath:no ascospores 
 Ascospores with a groove:no ascospores 
 Basidia septation:no basidia 
 Basidia shape:no basidia 
 Basidia catenate-solitary:no basidia 
 Teliospores:no teliospores 
 Sexual reproduction:no sexual reproduction 
Ascospores shape:
hat shaped no
cap shaped no
saturn shaped no
walnut shaped no
conical no
oblong no
round no
oval no
smooth no
rough no
reniform no
allantoid no
needle shaped no
whip like no
cell with cell no
cell with its bud no
clamp connexions no
pseudoclamp connexions no


 Reddish diffusing pigment:not produced 
 Colony margin:entire 
Colony colour:
white yes
cream yes
yellowish no
orange no
pink no
red no
buff no
dark brown to black no
Colony appearance:
arachnoid no
farinose no
smooth yes
venose no
warty no
furrowed no
Colony texture:
fluid no
mucoid yes
butyrous yes
membranous no
 Filaments:no hyphae 
Asexual reproduction:
fission no
budding yes
multilateral budding no
bipolar budding no
monopolar budding no
sympodial budding no
annellidic (percurrent) budding no
on sterigma no
on denticles no
arthroconidia no
chlamydospores no
endospores no
symmetrical ballistoconidia no
asymmetrical ballistoconidia no
Cell shape:
lemon no
triangular no
lunate no
allantoid no
dumb-bell shaped no
round yes
oval yes
cylindrical no
fusiform no


 D-Glucose (F1):negative 
 D-Galactose (F2):negative 
 Maltose (F3):negative 
 Me a-D-Glucoside (F4):negative 
 Sucrose (F5):negative 
 a,a-Trehalose (F6):negative 
 Melibiose (F7):negative 
 Lactose (F8):negative 
 Cellobiose (F9):negative 
 Melezitose (F10):negative 
 Raffinose (F11):negative 
 Inulin (F12):negative 
 Starch (F13):negative 
 D-Xylose (F14):negative 
  50% D-Glucose (O4):no growth 
  60% D-Glucose (O5):no growth 
 Starch formation (M1):yes 
 Acid acetic production (M2):no 
 Urea hydrolysis (M3):yes 
 Diazonium Blue B reaction (M4):positive 
 Methanol (C41):no growth 
 Ethanol (C42):growth 
Yeasts physiological data:
C1 D-Glucose +
C2 D-Galactose -, +
C3 L-Sorbose -, +
C4 D-Glucosamine -, d, w
C5 D-Ribose +, d, w
C6 D-Xylose +
C7 L-Arabinose +, d, w
C8 D-Arabinose +, d, w
C9 L-Rhamnose +
C10 Sucrose -
C11 Maltose -
C12 a,a-Trehalose +
C13 Me a-D-Glucoside -
C14 Cellobiose +, d, w
C15 Salicin -, d, w
C16 Arbutin -, d, w
C17 Melibiose -
C18 Lactose -, d, w
C19 Raffinose -
C20 Melezitose -
C21 Inulin -
C22 Starch -
C23 Glycerol +, d, w
C24 Erythritol -
C25 Ribitol +, d, w
C26 Xylitol +, d, w
C27 L-Arabinitol +, d, w
C28 D-Glucitol +
C29 D-Mannitol +
C30 Galactitol +, d, w
C31 myo-Inositol +, d, w
C32 D-Glucono-1,5-lactone +
C33 2-Keto-D-Gluconate +
C34 5-Keto-D-Gluconate ?
C35 D-Gluconate +
C36 D-Glucuronate +
C37 D-Galacturonate +
C38 DL-Lactate -, +
C39 Succinate +
C40 Citrate +
C43 Propane 1,2 diol -
C44 Butane 2,3 diol -
C45 Quinic acid -
C46 D-glucarate +, d, w
C47 D-Galactonate +
C48 Palatinose ?
C49 Levulinate ?
C50 L-Malic acid ?
C51 L-Tartaric acid ?
C52 D-Tartaric acid ?
C53 meso-Tartaric acid ?
C54 Galactaric acid ?
C55 Uric acid ?
C56 Gentobiose ?
C57 Ethylene glycol ?
C58 Tween 40 ?
C59 Tween 60 ?
C60 Tween 80 ?
N1 Nitrate -
N2 Nitrite -
N3 Ethylamine -
N4 L-Lysine +
N5 Cadaverine -
N6 Creatine -
N7 Creatinine -
N8 Glucosamine -, +
N9 Imidazole -
N10 D-Tryptophan -
N11 D-Proline ?
N12 Putrescine ?
V1 w/o vitamins -
V2 w/o myo-Inositol +
V3 w/o Pantothenate +
V4 w/o Biotin +
V5 w/o Thiamin -
V6 w/o Biotin & Thiamin +
V7 w/o Pyridoxine +
V8 w/o Pyridoxine & Thiamin -
V9 w/o Niacin +
V10 w/o PABA +
O1 Cycloheximide 0.01% -, d, w
O2 Cycloheximide 0.1% -
O3 Acetic acid 1% -
O6 10% NaCl -
O7 16% NaCl -
O8 Growth at pH=3 ?
O9 Growth at pH=9.5 ?
O10 Fluconazole ?
? ?
? ?
? ?
? ?
? ?
? ?
? ?
? ?
Temperatures growths tests :
at 4ºC ?
at 12ºC ?
at 15ºC ?
at 18ºC ?
at 21ºC ?
at 25ºC yes
at 30ºC variable
at 35ºC no
at 37ºC no
at 40ºC no
at 42ºC no
at 45ºC no




 rDNA sequences 26S:
 rDNA sequences 18S:
 rDNA sequences ITS:
 Miscellaneous sequences:
 Sequences URLs_Url:


  • 2/5029-colp.JPG
  • 2/5029-veg1p.JPG
  • 2/5029-veg2.JPG
  • 2/5029-veg3.JPG