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General information

 Remarks:Galactomyces geotrichum
Characteristics given by other authors
Cell components
Mol % of G + C of nuclear DNA: 42.1, 42.9, 43.5, 43.5, 43.6, 43.6, 44.4, 44.4, 44.9, 45, 45.1 (Guého et al. 1985; de Hoog et al. 1986).
Chromosome bands:
Where found
Milk, cheese, plants, fruits, soil, insects, Man and other mammals.
Other information
 Taxonomic information:
 Link to yeast book 2011:


 Number of ascospores per ascus:1 - 2 
 Asci evanescence:persistent 
 Asci shape:not club shaped 
 Ascospores with gelatinous sheath:no 
 Ascospores with a groove:yes 
 Basidia septation:no basidia 
 Basidia shape:no basidia 
 Basidia catenate-solitary:no basidia 
 Teliospores:no teliospores 
 Sexual reproduction:ascomycetous 
Ascospores shape:
hat shaped no
cap shaped no
saturn shaped no
walnut shaped no
conical no
oblong no
round no
oval yes
smooth no
rough yes
reniform no
allantoid no
needle shaped no
whip like no
cell with cell yes
cell with its bud no
clamp connexions no
pseudoclamp connexions no
 Conditions for sporulation:5% Difco malt agar at 25°C after mating of compatible strains 


 Reddish diffusing pigment:not produced 
 Colony margin:other 
Colony colour:
white yes
cream no
yellowish no
orange no
pink no
red no
buff no
dark brown to black no
Colony appearance:
arachnoid no
farinose yes
smooth no
venose no
warty no
furrowed no
Colony texture:
fluid no
mucoid no
butyrous no
membranous yes
 Filaments:septate hyphae 
Asexual reproduction:
fission no
budding no
multilateral budding no
bipolar budding no
monopolar budding no
sympodial budding no
annellidic (percurrent) budding no
on sterigma no
on denticles no
arthroconidia yes
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 no
oval no
cylindrical yes
fusiform no


 D-Glucose (F1):weak, delayed 
 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 
 Starch formation (M1):no 
 Acid acetic production (M2):no 
 Urea hydrolysis (M3):no 
 Diazonium Blue B reaction (M4):negative 
 Methanol (C41):no growth 
 Ethanol (C42):growth 
Yeasts physiological data:
C1 D-Glucose +
C2 D-Galactose +
C3 L-Sorbose +
C4 D-Glucosamine -
C5 D-Ribose -, +
C6 D-Xylose +
C7 L-Arabinose -
C8 D-Arabinose -
C9 L-Rhamnose -
C10 Sucrose -
C11 Maltose -
C12 a,a-Trehalose -
C13 Me a-D-Glucoside -
C14 Cellobiose -
C15 Salicin -
C16 Arbutin -
C17 Melibiose -
C44 Butane 2,3 diol -, +
C18 Lactose -
C19 Raffinose -
C20 Melezitose -
C21 Inulin -
C22 Starch -
C23 Glycerol +
C24 Erythritol -
C25 Ribitol -, +
C28 D-Glucitol +, d, w
C29 D-Mannitol +
C30 Galactitol -
C31 myo-Inositol -
C32 D-Glucono-1,5-lactone -, +
C33 2-Keto-D-Gluconate -
C37 D-Galacturonate -, +
C40 Citrate -, +
C43 Propane 1,2 diol +




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


  • 2/Galactomyces geotrichum arthroconidia +.jpg
  • 2/Galactomyces geotrichum-tem-asc+.jpg
  • 2/Galactomyces geotrichum-tem-asc2+.jpg