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How do nematodes feed?

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Many nematodes, both herbivores and carnivores, feed by inserting a rigid “stylet” into their food source—in some the stylet is hollow and acts as a drinking straw. Others feed by “gulping” a food particle whole through a mouth opening. They may have rasping/crushing “teeth” within the pharynx – or not. 4 нояб. 2014 г.


How do nematodes feed on plants?

Nematodes can damage these important food crops along with many others. Nematodes possess a straw-like mouth part that injects a mixture of enzymes into the plant, which breaks down the plant cells into a plant-cell soup. After the cells are broken down, the nematodes eat up this soup [2].

How do nematodes ingest food?

Fungal-feeders feed by puncturing the cell wall of fungi and sucking out the internal contents. Predatory nematodes eat all types of nematodes and protozoa. They eat smaller organisms whole, or attach themselves to the cuticle of larger nematodes, scraping away until the prey's internal body parts can be extracted.

Do nematodes feed using their gut?

Whereas most of the major GI nematodes obtain their nutrients by attaching and feeding on the mucosa of the intestinal tract, Ascaris also feeds on the contents of the intestinal lumen.

How do nematodes fertilize?

Most nematodes are dioecious. Fertilization takes place when males use special copulatory spines to open the females' reproductive tracts and inject sperm into them. The sperm are unique in that they lack flagellae and move by pseudopodia, like amoebas. Development of fertilized eggs is usually direct.

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