Caenorhabditis elegans: a model to monitor bacterial air quality

BMC Research Notes

Table 1 Airborne bacterial composition in the dust cloud resulting from crop transfer

Sample		Next to crops ship loading winter 2009
Collected volume		30L
Incubation conditions		30°C on 1:5 diluted TSA plate
UFC/air m³		10767
	Group 1		17.6%
Gram-negative rods	Group 2	72.4%	4.0%
	Group 3		39.9%
	Group 4		10.8%
Gram-positive rods	Group 5	16.4%	5.3%
	Group 6		11.1%
Gram-positive cocci	Group 7	6.5%	3.7%
	Group 8		2.8%
unexploitable strains		4.6%

Eight groups were represented: Gram-negative oxidase-negative strictly aerobic rods such as Acinetobacter, Pseudomonas... (Group 1), Gram-negative oxidase-positive facultatively anaerobic rods such as Aeromonas... (Group 2), Gram-negative oxydase-negative facultatively anaerobic rods mainly Enterobacteriaceae (Group 3), Gram-negative oxidase-positive strictly aerobic rods like Pseudomonas...(Group 4), Gram-positive sporing rods such as Bacillus...(Group 5), Gram-positive catalase-positive nonsporing rods such as Arthrobacter... (Group 6), Gram-positive catalase-positive strictly aerobic cocci such as Micrococcus... (Group 7), Gram-positive catalase-positive facultatively anaerobic cocci such as Staphylococcus... (Group 8).

ISSN: 1756-0500