Arthrobacter ilicis

Carbon source11 Corynebacterium glutamicum Nocardia sp. Arthrobacter ilicis Clavibacter rathayi Microbacterium laevaniformans... 

Fio. 1. Appearance of papillae on colonies of Arthrobacter ilicis on lactose, L-arabitol, and L-gulonic acid selective plates. No papillae were observed before the first point shown. 

Mutation Frequencies in Exponentially Growing Cultures of Arthrobacter ilicis... 

With Arthrobacter ilicis the time required for the appearance of L-ara-bitol-utilizing papillae is dramatically reduced for rhamnose-utilizing or ribitol-utilizing mutants, compared with the wild-type strain (Fig. 2). Indirect selection need not be a multistep process, however. When 110 L-arabi-tol mutants of Arthrobacter ilicis were tested, 42 could also utilize D-ribose, and 18 of the 42 could also utilize L-rhamnose. Similarly, 16 of 60 Lac+ mutants could also utilize L-arabinose. 

The various factors that affect the number, rate, and timing of appearance of papillae are not well understood. Crowding of colonies on plates affects the number of papillae that appear on Arthrobacter ilicis colonies ... 

Fig. 2. Appearance of papillae on colonies of wild-type and mutant Arthrobacter ilicis on L-arabitol plates. WT, Wild type Rib+, ribitol-utilizing mutant Rha+, rhamnose-utilizing mutant RT, room temperature.

Arthrobacter ilicis Activated sludge, contaminated soil and soil near a Gingko tree Incomplete MTBE degradation to TBA [13]... 

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