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Feeding of Longidorus Caespiticola On Rye-Grass, Loli Um Perenne
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0028-2596
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For more content, see Nematology.
The way Longidorus caespiticola fed on rye-grass roots was studied, using cinemicrography. Despite disturbing one another the nematodes often fed gregariously and mating was thereby facilitated. Root tips attacked previously were the preferred feeding sites and before penetrating them nematodes explored them only briefly. Full protraction of the stylet always preceded ingestion. Salivation was inferred from host responses, and characteristic contractions of the oesophageal bulb may assist saliva flow. The 'salivation phase' was interspersed with short bouts of pumping by which the nematodes apparently tested the suitability of food cells. They then either withdrew or proceeded to ingest by prolonged pumping with the oesophageal bulb. The mechanism of pumping is described and discussed. Feeds lasted up to about 6 hr.
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