This finding implied that yeast extract did not enhance Arthrobacter
Presence in cell-free extracts of arthrobacter
There were 42 dominant actinobacteria species belonging to 10 genera, in which Nocardiopsis, Kribbella, Nocardia, Arthrobacter
and Umezawaea were not reported in previous research (Gonzalez et al., 2005).
In the present study, rare Actinobacteria of the genera Arthrobacter
, Brevibacterium, Kocuria, Microbacterium, Nocardia, Nocardioides, Nocardiopsis, Pseudonocardia, Rhodococcus, and Tsukamurella were also isolated.
Some other genera (Staphylococcus, Arthrobacter
, Stenotrophomonas, Microbacterium, serratia, Kliebsiela, Micrococcus, Exiguobacterium, klebsiella) were found in trunks samples among different seasons, but were absent from leaves and fruits.
The lipase producing bacterial species include Achromobacter, Alcaligenes, Arthrobacter
, Bacillus, Burkholderia, Chromobacterium and Pseudomonas.
AMP2, Halomonas venusta APA and Arthrobacter
mysorens AHA on the growth of Triticum aestivum var.
Using the classifications of harmful biological agents included in Directive 2000/54/EC  and Ordinance of Polish Minister of Health , it was ascertained that in the working environment of art conservators one can find not only microorganisms from risk group 1 (i.e., agents that are unlikely to cause human disease), but also those from risk group 2 (i.e., agents that can cause human disease and might be a hazard to workers; among others, Aspergillus fumigatus species and genera of which certain species are classified into this risk group, Staphylococcus spp., Arthrobacter
spp., Brevibacterium spp., Bacillus spp., Actinomyces spp., Nocardia spp., Rhodococcus spp., Aspergillus spp., Penicillium spp.
For the thirteen bacterial perforated ulcers, four cultures were positive for Staphylococcus aureus (two of them methicillin-resistant), two cultures were positive for Haemophilus influenzae, two cultures were positive for Streptococcus pneumoniae, two cultures were positive for Pseudomonas aeruginosa, and one culture each was positive for Citrobacter koseri, Arthrobacter
spp., and a nonidentified atypical acid fast bacillus.