Ultrastructural features of the ovary and oogenesis in the
polychaete Capitella jonesi (Hartman, '59) have been described. The ovaries are
paired, sac-like follicles suspended by mesenteries in the ventral coelom
throughout the midbody region of the mature worm. Oogenesis is unsynchronized
and occurs entirely within the ovary, where developing gametogenic stages are
segregated spatially within a germinal and a growth zone. Multiplication of
oogonia and differentiation of oocytes into the late stages of vitellogenesis occur in
the germinal region of the ovary, whereas late-stage vitellogenic oocytes and
mature eggs are located in a growth zone. Follicle cells envelop the oocytes in the
germinal zone of the ovary and undergo hypertrophy and ultrastructural changes
that correlate with the onset of vitellogenesis.
Member of
Contributors
Publisher
Alan R. Liss, Inc.
Date Issued
1982
Note
Language
Type
Genre
Form
Extent
17 p.
Subject (Topical)
Identifier
FA00007086
Additional Information
Ultrastructural features of the ovary and oogenesis in the
polychaete Capitella jonesi (Hartman, '59) have been described. The ovaries are
paired, sac-like follicles suspended by mesenteries in the ventral coelom
throughout the midbody region of the mature worm. Oogenesis is unsynchronized
and occurs entirely within the ovary, where developing gametogenic stages are
segregated spatially within a germinal and a growth zone. Multiplication of
oogonia and differentiation of oocytes into the late stages of vitellogenesis occur in
the germinal region of the ovary, whereas late-stage vitellogenic oocytes and
mature eggs are located in a growth zone. Follicle cells envelop the oocytes in the
germinal zone of the ovary and undergo hypertrophy and ultrastructural changes
that correlate with the onset of vitellogenesis.
polychaete Capitella jonesi (Hartman, '59) have been described. The ovaries are
paired, sac-like follicles suspended by mesenteries in the ventral coelom
throughout the midbody region of the mature worm. Oogenesis is unsynchronized
and occurs entirely within the ovary, where developing gametogenic stages are
segregated spatially within a germinal and a growth zone. Multiplication of
oogonia and differentiation of oocytes into the late stages of vitellogenesis occur in
the germinal region of the ovary, whereas late-stage vitellogenic oocytes and
mature eggs are located in a growth zone. Follicle cells envelop the oocytes in the
germinal zone of the ovary and undergo hypertrophy and ultrastructural changes
that correlate with the onset of vitellogenesis.
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 248
This manuscript is an author version with the final publication
available and may be cited as: Eckelbarger, K. J., & Grassle, J. P. (1982). Ultrastructure of the ovary and
oogenesis in the polychaete Capitella jonesi (Hartman, 1959). Journal of Morphology, 171 (3), 305-
320.
available and may be cited as: Eckelbarger, K. J., & Grassle, J. P. (1982). Ultrastructure of the ovary and
oogenesis in the polychaete Capitella jonesi (Hartman, 1959). Journal of Morphology, 171 (3), 305-
320.
Date Backup
1982
Date Text
1982
Date Issued (EDTF)
1982
Extension
FAU
IID
FA00007086
Organizations
Attributed name: Harbor Branch Oceanographic Institute
Person Preferred Name
Eckelbarger, Kevin J.
Physical Description
17 p.
Title Plain
Ultrastructure of the ovary andoogenesis in the polychaete Capitella jonesi (Hartman, 1959)
Origin Information
1982
Alan R. Liss, Inc.
New York
Place
New York
Title
Ultrastructure of the ovary andoogenesis in the polychaete Capitella jonesi (Hartman, 1959)
Other Title Info
Ultrastructure of the ovary andoogenesis in the polychaete Capitella jonesi (Hartman, 1959)