TABLE 2.

In situ local abundance of gfp-tagged S. meliloti 1021 cells within confocal optisections of infected plant tissues in ricea

Tissue location% Microbial coverLocal population density (bacteria/cm3)
Root3.66-19.731.52 × 109-9.03 × 1010
Stem base5.61-19.152.61 × 108-1.37 × 1010
Lower leaves8.30-20.137.69 × 109-8.95 × 1010
  • a Plant roots were inoculated and grown gnotobiotically for 35 days before examination by computer-assisted microscopy and CMEIAS image analysis.