Table 1.
Several Arabidopsis accessions show an accelerated cell death response after being inoculated with high titers of Pseudomonas syringae pv. tomato (Pst) DC3000
| Accession | Plant response to Pst DC3000 infection | |||
|---|---|---|---|---|
| No | Partial | Collapsed | Total | |
| Col-0 | 31 | 3 | 2 | 36 |
| Loh-0 | 18 | 0 | 0 | 18 |
| Es-0 | 12 | 6 | 0 | 18 |
| Bu-22 | 0 | 5 | 13 | 18 |
| Bu-25 | 0 | 0 | 24 | 24 |
| CO | 13 | 11 | 0 | 24 |
| Uk-4 | 11 | 11 | 2 | 24 |
| Xan-2 | 1 | 9 | 8 | 18 |
| Xan-5 | 0 | 0 | 18 | 18 |
| Belm-12 | 18 | 0 | 0 | 18 |
| CIBC-16 | 11 | 7 | 0 | 18 |
| Est-1 | 14 | 4 | 0 | 18 |
| Co-3 | 17 | 1 | 0 | 18 |
| PHW-17 | 21 | 2 | 1 | 24 |
| Ra-0 | 16 | 2 | 0 | 18 |
Cell death after infiltration with 108 colony-forming units (CFU) ml-1 Pst DC3000 is accelerated in six Arabidopsis accessions, compared to that observed for Col-0. Cell death was evaluated 26 h after infiltration into three categories: (1) no leaf area showing necrosis symptoms; (2) partial necrosis symptoms; (3) fully collapsed leaf. Eighteen to thirty-six leaves were evaluated per accession, with three leaves being infiltrated per plant. Highlighted in bold and in italics are those accessions whose response to Pst DC3000 inoculation was different from Col-0, as determined by a Fisher’s exact test (P < 0.0036).