The feeding biology of the gymnoblastic hydroid, Pennaria tiarella

Wiley - Tập 168 Số 2 - Trang 197-202 - 1968
R. L. Pardy1,2, Howard M. Lenhoff2,3
1Department of Biology, University of Arizona, Tucson, Arizona, 85721.
2Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, Hawaii
3Laboratory of Quantitative Biology, University of Miami, Coral Gables, Florida 33124.

Tóm tắt

Abstract

The role in food capture of the nematocysts on the filiform and capitate tentacles of Pennaria tiarella is discussed. The feeding response of Pennaria tiarella to Artemia extracts consists of cone bending and mouth opening. A similar feeding response has been demonstrated to be induced by proline at concentration as low as 10−6M. Pipecolic acid, a proline analog, also elicits a feeding response. Proline causes the head of the capitate tentacles to shrink, thereby causing the cnidocils of the large stenoteles to be prominent.

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Tài liệu tham khảo

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Thông tin xuất bản

Wiley

Tập 168 Số 2

197-202

Thông tin tác giả