Mode of Parasitism of Meloidogyne and Other Nemaiode Eggs by Dactylella oviparasitica
Hyphae of Dactylella oviparasitica proliferated rapidly through MeIoidogyne egg masses, and appressoria formed when they contacted eggs. The fungus probably penetrated egg shells mechanically, although chitinase production detected in culture suggested that enzymatic penetration was also possible. I...
| Veröffentlicht in: | Journal of nematology. - 1969. - 11(1979), 3 vom: 01. Juli, Seite 282-8 |
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| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
1979
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| Zugriff auf das übergeordnete Werk: | Journal of nematology |
| Schlagworte: | Journal Article Heterodera schachtii Tylenchulus semipenetrans appressorium biological control chitinase |
| Zusammenfassung: | Hyphae of Dactylella oviparasitica proliferated rapidly through MeIoidogyne egg masses, and appressoria formed when they contacted eggs. The fungus probably penetrated egg shells mechanically, although chitinase production detected in culture suggested that enzymatic penetration was also possible. In soil, D. oviparasitica invaded egg masses soon after they were deposited on the root surface and eventually parasitized most of the first eggs laid. Occasionally the fungus grew into Meloidogyne females, halting egg production prematurely. The fungus parasitized eggs in the gelatinous matrix or eggs freed from the matrix and placed on agar or in soil. Specificity in nematode egg parasitism was not displayed, for D. oviparasitica parasitized eggs of four Meloidogyne spp., Acrobeloides sp., Heterodera schachtii, and Tylenchulus semipenetrans. In tests in a growth chamber, parasitism by D. oviparasitica suppressed galling on M. incognita-infected tomato plants |
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| Beschreibung: | Date Completed 14.07.2011 Date Revised 20.10.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |