Table 2 Total number of B. cenocepacia coding sequences (CDS) with expression changes greater than twofold

Growth condition	Upregulated CDS		Downregulated CDS		Regulated CDS in proportion to total on array (%)
	Total	Unknown function^a (%)	Total	Unknown function^a (%)
Stationary phase in nutrient-rich medium	497	29	629	18	15.5
Stationary phase in minimal medium	1053	29	1101	24	29.7
Low oxygen concentration	1046	33	941	22	27.4
Oxidative stress (inorganic peroxide)	360	28	548	24	12.5
Oxidative stress (organic peroxide)	381	31	451	24	11.5
Heat stress	261	37	197	18	6.3
Physiological temperature	118	45	178	26	4.1
Low iron	134	21	25	32	2.2
Low pH	130	27	62	18	2.6

^aGenes designated as unknown function were those with annotations indicative of poorly characterised function such as: hypothetical, conserved hypothetical, membrane associated, or exported protein encoding genes.

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