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The ultrastructure of the spiral notosetae ofNicomache maculata Arwidsson (Polychaeta, Maldanidae) (1978)

Kennedy, B. ; Kryvi, H.

Springer

Cellular and molecular life sciences 34 (1978), S. 460-462

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ISSN: 1420-9071

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Summary Scanning- and transmission electron microscopy show that the long, thin notosetae ofNicomache maculata are helical over much of their length, and that their finely feathered appearance is produced by a series of minutely spiny scales. The internal structure varies considerably from one end of the seta to the other. While a helical shape could result from a rotating or asymmetrical secretion-rate gradient across the chaetoblast, we raise the possibility that the spiral represents a warp in the seta following deposition of the setal material.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01935926

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