32
J. N. BALL AND BRIDGET I. BAKER
Table I
Gonadotrops of the Mature Pacific Salmon, Oncorhynchus s p . ~
Feature
Size of cell
Location
Granules
Aliz B
Postspawning
evolution
AB-PAS
Large
Edge of cords
Fine
AB - ve, PAS -t ve (magenta)
Pale blue
Vacuolate and totally degranulate, finally containing
OG + ve granules
Small
Interior of cords
Large
AB + ve, PAS + ve (violet)
Dark blue
Degranulate partially, do not
vacuolate, finally still retain
some aniline blue + ve
granules
From Olivereau and Ridgeway (1962), Olivereau (1963d), illustrated in Olivereau
(1963b).
Fig. 16. Anguilla QngUikZ. Proximal pars distalis of female eel brought to sexual
maturity by pituitary treatment (Section 11, B, 4 ) . The predominant gray cell is the
PAS f ve gonadot,rop, often with a basal vacuole, with fine glycoprotein granulation
together with coarse amphiphilic granules which may be lysosomes ( Section 11, B, 4 ).
The second gonadotrop contains coarse dark granules ( PbH 4- ve). The small unstained cells are somatotrops. PbH-PAS, X 1050.