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10 Cards in this Set
- Front
- Back
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What is a nematode?
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nonsegmented roundworm (animal), parasitic on plants or animals, or free living in soil or water, bilaterally symmetrical, pseudocoelomic, and aquatic
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What is an endoparasite and an example?
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parasitic organism that lives and feeds from inside its host (see ectoparasite)
(lesion nematode, Pratylenchus sp., an endoparasite) |
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What is an ectoparasite and an example?
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parasite that feeds from the exterior of its host (see endoparasite)
(female sting nematode, Belonolaimus sp., feeding on a root) |
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What 3 types of stylets are there?
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stomatostylet, odontostylet, onchiostylet
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What are the parts of the stomatostylet?
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cone, shaft, knobs
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How do nematodes affect plants?
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root parasites, foliar parasites, vascular parasites, disease interactions
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What are above-ground symptoms of root nematodes?
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wilting, declining, yellowing, stunting, thinning, death, lodging, damage in patches
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What is the most damaging nematode worldwide?
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root-knot nematodes which causes galling
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What is unique about vascular nematodes?
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vectored by beetles
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What is a disease vectored by a nematode?
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corky ringspot in potato
grapevine fanleaf |
