TABLE 2.
PCR-negative species tested
| PCR-negative species | Strainsa |
|---|---|
| Erwinia spp. and strains | E. amylovora EA169, E. carotovora subsp. atroseptica UCBPP149, E. carotovora subsp. betavasculorum UCBPP 162, E. carotovora subsp. carotovora Erc1, E. chrysanthemi pv. dieffenbachiae ED 104, E. cypripedii EC155, E. nigrifluens EN 105, E. quercina EQ101, E. rhapontici ER102, E. rubrifaciens ER103 |
| Pseudomonas spp. and strains | P. cepacia PC22, P. gladioli UCBPP550, P. syringae pv. apii PA102, P. syringae pv. tabaci PT124, P. syringae pv. erobotryae UCBPP258, P. syringae pv. atrofaciens UCBPP260, P. syringae pv. coronafaciens UCBPP470, P. syringae pv. glycinea UCBPP527 |
| Xanthomonas spp. and pathovars | X. arboricola pv. corylina XC5, X. arboricola pv. juglandis XJ123, X. arboricola pv. pruni XP10, X. axonopodis pv. begoniae XB110, X. axonopodis pv. cassiae XC112, X. axonopodis pv. manihotis XM125, X. axonopodis pv. tamarindi XT105, X. axonopodis pv. vignicola XV18, X. axonopodis pv. lespedezae XL1, X. campestris pv. campestris XCC1-1, X. hortorum pv. pelargonii XP15 |
a
The positive strains had a 1,070-bp DNA fragment amplified by PCR using PS-IS-F/PS-IS-R as primers. The negative strains had no PCR-amplified product. The strains were obtained from the International Collection of Phytopathogenic Bacteria, University of California, Berkeley, and American Type Culture Collection, Manassas, Va.