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Sensory receptors involved in the feeding behaviour of the rotiferAsplanchna brightwelli

✍ Scribed by Elizabeth Wurdak; Pierre Clément; Jacqueline Amsellem

Publisher
Springer
Year
1983
Tongue
English
Weight
989 KB
Volume
104
Category
Article
ISSN
1573-5141

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✦ Synopsis

A study of the anterior sensory receptors of male and female Asplanchna brightwelli by scanning electron microscopy reveals some important differences in the region surrounding the mouth . In the male, the ventrolateral sensory bristles, the pseudotrochus, the inner and the outer buccal tufts and the mastax receptors are absent . The oral receptors are reduced .

Transmission electron microscopy of these receptors shows that they consist of ciliated sensory cells surrounded by epithelial supporting cells . The distal ends of the cilia of the mastax receptors are modified ; the cilia of the other receptors differ only in their length and rootlet structure from the locomotor cilia of the cingulum .

A consideration of the feeding behaviour of Asplanchna leads us to suppose that these sensory cilia function in mechanoreception and in chemoreception .

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