Table 5. Bacterial counts (CFUs)^A for honey bee crops^B cultured under different conditions.

Growth conditions		Workers sampled inside the hive		Workers sampled outside the hive
MediaC	AtmD	NectarE (9)	NursesF (10)	General (12)	Pollen (12)
MRS	O2 A	0.69±0.85	3.60±1.31	11.93±6.40	7.18±5.54
MRS	CO2	1.97±1.06	3.99±1.49	8.75±4.90	6.78±4.39
TSA	O2	0.013±0.012	0.026±0.009	3.26±1.45	2.11±1.37
TSA	CO2	0.83±0.52	2.21±0.96	3.41±1.21	5.63±3.56

^AMean ± SE colony forming units per crop; multiply listed values by 10⁵,

^BCrop is the foregut or social stomach. Sample size in parentheses.

^CMRS: de Man, Rogosa and Sharpe media; pH 5.7, TSA: Tryptic soy agar; pH 7.3

^DAtmosphere; O₂  =  Ambient conditions, CO₂  =  Ambient conditions containing 5% CO₂.

^EWorkers with empty crops processing nectar.

^FWorkers with full crops attending to brood.