Table 2

Proportion of field-collected flea beetles (FLB) naturally infected with Pantoea stewartii

Collection dateNo. ofP. stewartii-positive FLB/total (%)Gut regionNo. positive/total (%)
June 20075/30 (16.7)aNDcND
August 200715/60 (25.0)aNDND
Sept. 20071/30 (3.3)aNDND
Sept./Oct. 20073/91 (3.3)bForegut0/23 (0)
Midgut0/24 (0)
Hindgut2/23 (8.7)
Mtd1/21 (4.8)
April 20082/25 (8.0)aNDND
Sept./Oct. 20081/48 (2.0)bForegut0/12 (0)
Midgut1/14 (0.07)
Hindgut0/11(0)
Mt0/11 (0)
  • a P. stewartii was detected using semiselective medium and verified using PCR.

  • b P. stewartii was detected using immunofluorescence confocal microscopy of beetle guts.

  • c ND, not determined.

  • d Mt, Malpighian tubules.