| Tropism |
|
| Oxygen |
Facultatively
anaerobic Chlorate is reduced anaerobically by Serratia
nitrate reductase (anaerobic growth does not occur with
chlorate). |
| pH |
pH
5-9 |
| Temperature |
Almost
all strains can grow at temperatures between 10 and 36`C, |
| Requirements |
Growth
factors are generally not required by Serratia
strains. |
| Products |
Acetoin
is produced from pyruvate. Reducing compound(s) are
produced from gluconate. D-Glucose is fermented in the
presence (and in the absence) of 0.001 M iodoacetate.
Maltose, mannitol and trehalose are fermented and
utilized as sole carbon sources. D-Alanine, L- alanine,
4-aminobutyrate, caprylate, citrate, L-fucose, D-
glucosamine, kynurenate, L-proline, putrescine and
tyrosine are utilized as sole carbon sources. Dulcitol
and tagatose are neither fermented nor utilized as sole
carbon sources. Butyrate and 5-amino-valerate are not
utilized as sole carbon sources.
o-Nitrophenyl-B-D-galactopyranoside (ONPG) is hydrolyzed
by most strains |
| Enzymes |
The
catalase reaction is strongly positive Extracellular
enzymes hydrolyze DNA, lipids (tributyrin, corn oil) and
proteins (gelatin, casein), but not starch (in 4 days),
polygalacturonic acid or pectin. Phenylalanine (and
tryptophan) deaminate and thiosulfate reductase (H2S from
thiosulfate) are not produced. |
| Unique features |
. |