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Table 4 Key phenotypic characteristics for differentiation between Leclercia and Silvania gen. nov.

From: Description of a novel species of Leclercia, Leclercia tamurae sp. nov. and proposal of a novel genus Silvania gen. nov. containing two novel species Silvania hatchlandensis sp. nov. and Silvania confinis sp. nov. isolated from the rhizosphere of oak

Reaction

Leclercia* (n = 9)

Silvania (n = 3)

indole production

+

Va

sorbitol

Va

+

rhamnose

+

Va

sucrose

Vb

Va

Acidification of:

  

 D-arabinose

–

+

 D-adonitol

Vb

–

 methyl-α-D-mannopyranoside

–

Vb

 methyl-α-D-glucopyranoside

Vb

Vb

 D-raffinose

Vb

+

 D-lyxose

Va

Vb

 D-tagatose

–

Vb

 D-arabitol

Vb

–

 potassium 2-ketogluconate

Vb

–

 potassium 5-ketogluconate

Vb

+

 phenol red

+

Va

 palatinose

Vb

–

 β-glucuronidase

–

Va

 malonate

Va

Vb

 N-acetyl-β-glucosaminidase

Va

–

Utilisation of:

  

 sucrose

Va

+

 stachyose

Vb

Va

 N-acetyl-D-galactosamine

–

Va

 3-methyl glucose

Va

+

 D-aspartic acid

Vb

+

 D-serine

Va

+

 L-pyroglutamic acid

Va

Va

 pectin

Vb

Va

 quinic acid

–

Va

 p-hydroxy-phenylacetic acid

+

–

 citric acid

Va

+

 α-keto-glutaric acid

–

Va

 D-malic acid

Va

Va

 α-hydroxy-butyric acid

Va

–

 β-hydroxy-D,L-butyric acid

Vb

–

 formic acid

Vb

–

Resistant to:

  

 fusidic acid

+

–

 D-serine

+

Vb

 troleandomycin

Va

Vb

 nalidixic acid

Va

Vb

 potassium tellurite

Vb

Vb

  1. +, positive reaction; −, negative reaction; V, variable within species; a, positive for type strain; b, negative for type strain. * Leclercia adecarboxylata and Leclercia tamurae sp. nov.