Malecha J. [Osmoregulation in Hirudinea Rhynchobdellida Theromyzon tessulatum (O.F.M.). Experimental localization of the secretory zone of a regulation factor of water balance].
Gen Comp Endocrinol 1983;
49:344-51. [PMID:
6840528 DOI:
10.1016/0016-6480(83)90198-3]
[Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The body water content of Theromyzon tessulatum changes considerably during the life cycle. Water content is low and undergoes little change during the first stages, but it strongly and regularly increases during the last stage prior to reproduction. It is controlled by a water balance factor (FRBH) released by the brain. With selective removals of nervous follicles, the site of production of this hormone has been localized in the posterior paramedial follicles (follicles 4).
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