Nematology 100
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Transcript of Nematology 100
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Nematology 100
Lecture 12 Slides
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Aphelenchoidesritzemabosi-chrysanthemum
Aphelenchoidesfragariae-lily
Aphelenchoidesbesseyi-rice
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Aphelenchoides fragariae - Hosta Aphelenchoides sp. - Verbena
Aphelenchoides fragariae - Carnation Aphelenchoides fragariae - Weigelia
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Bursaphelenchus cocophilus - palm
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Bursaphelenchus cocophilus – “little leaf” symptoms
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Bursaphelenchus cocophilus – vector control
insecticide traps with pheromone attractant
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Bursaphelenchus xylophilus – pine wilt
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Bursaphelenchus xylophilus
Aphelenchoidea
fungus
horizontal gene transfer- HGT
cellulases – GHF45- glycoside hydrolase family
the evolution of plant parasitism
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Bursaphelenchus xylophilus – vector, Monochamus sp.
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Searching for Bursaphelenchus spp.:– gray pine, El Dorado County- found mainly bacterial- and fungal-feeders
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Laimaphelenchus sp. is detectedin samples of bark with exudingresin
Signs of bark-beetle damage to Monterey Pine (Pinus radiata)
feeding on fungi or algae? or…?
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From tree in foreground:Laimaphelenchus sp.– Monterey Pine, El Dorado County
feeding on fungi or algae? or…?
Laimaphelenchus sp.
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Another aphelench:Seinura sp. – a predator