Pasteuria sp. Parasitizing Trophonema okamotoi in Florida
Two populations of Trophonema okamotoi parasitized by Pasteuria sp. were found on Liquidambar styraciflua (sweetgum) and on an unidentified tropical grass in north-central Florida. Endospores of this Pasteuria sp. attached to motile vermiform second-stage juveniles (J2) and males of T. okamotoi, but...
| Publié dans: | Journal of nematology. - 1969. - 24(1992), 1 vom: 15. März, Seite 36-9 |
|---|---|
| Auteur principal: | |
| Autres auteurs: | , |
| Format: | Article |
| Langue: | English |
| Publié: |
1992
|
| Accès à la collection: | Journal of nematology |
| Sujets: | Journal Article P. penetrans P. thornei Pasteuria nishizawae Trophonema okamotoi bacterium biological control endospore host range nematode |
| Résumé: | Two populations of Trophonema okamotoi parasitized by Pasteuria sp. were found on Liquidambar styraciflua (sweetgum) and on an unidentified tropical grass in north-central Florida. Endospores of this Pasteuria sp. attached to motile vermiform second-stage juveniles (J2) and males of T. okamotoi, but not to other developmental stages. Sporangia and new endospores were produced only inside the bodies of swollen and sedentary third- and fourth-stage juveniles and females that developed in the host roots. No egg masses were produced by infected T. okamotoi females. The endospore diameter from the tropical grass population was 4.93 mum and the central core diameter was 1.97 mum; measurements of endospores from the sweetgum populations were similar. Endospores that were collected from T. okamotoi and added to uninfected T. okamotoi and other plant-parasitic nematodes attached/to J2 of T. okamotoi but did not attach to juveniles and adults of Helicotylenchus pseudorotrustus, Pratylenchus brachyurus, or to J2 of either Meloidogyne arenaria race 1, M. incognita race 1, M. javanica, or Tylenchulus semipenetrans. Pasteuria sp. from T. okamotoi differed from the described Pasteuria species in endospore size, host preference, and rate of attachment |
|---|---|
| Description: | Date Completed 14.07.2011 Date Revised 20.10.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |