Nematology (2018) 20, 355-371
Birhan A. Abate, Bernard Slippers, Michael J. Wingfield, Antoinette P. Malan and Brett P. Hurley (2018)
Diversity of entomopathogenic nematodes and their symbiotic bacteria in south African plantations and indigenous forests
Nematology 20 (4), 355-371
Abstract: The occurrence and diversity of entomopathogenic nematodes (EPN) and their symbiotic bacteria was evaluated in commercial forestry plantations (Eucalyptus spp., Pinus spp. and Acacia mearnsii) and indigenous forests in South Africa. EPN were most prevalent in A. mearnsii plantations, accounting for 60.7% of the isolates, while indigenous forests, plantations of Pinus spp. and Eucalyptus spp. accounted for 35.7, 3.6 and 0% of the isolates, respectively. DNA sequences of the internal transcribed spacer (ITS) and D2-D3 28S rDNA regions were used to identify the nematode species. Four Steinernema spp. were identified, including S. citrae, S. sacchari, two undescribed species, as well as Heterorhabditis bacteriophora and H. baujardi. Heterorhabditis baujardi is reported from South Africa for the first time. Analysis of 16S rRNA of the bacteria confirmed the presence of at least three Xenorhabdus species from Steinernema isolates and two subspecies of Photorhabdus luminescens from Heterorhabditis species.
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Link to article at publishers website
Database assignments for author(s): Bernard Slippers, Michael J. Wingfield, Brett P. Hurley, Antoinette P. Malan
Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Heterorhabditis bacteriophora/Photorhabdus (entomopathogen) | South Africa | |||
| Heterorhabditis baujardi (entomopathogen) | South Africa | |||
| Steinernema citrae (entomopathogen) | South Africa | |||
| Steinernema sacchari (entomopathogen) | South Africa |
