Comparative Structure and Histochemistry of Silk-Producing Organs in Arachnids
Among arthropods, silk is produced by insects, myriapods and arachnids, and extruded as fine fibers before being processed into threads, ribbons, sheets, webs or cocoons (Rudall and Kenchington 1971). The larvae of insects from many groups secrete a great variety of silks, but only one kind is produced by a single individual. On the other hand, the arachnid silks hitherto studied do not show as much structural and chemical diversity as those of insects; although at least two different silks may be produced by a single pseudoscorpion or mite, and no less than nine types of fibers are known to emerge from the spinnerets of individual spiders of certain species.
KeywordsSecretory Product Silk Fiber Accessory Gland Silk Gland Spider Silk
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