Alteration of annulate lamellae in the in vitro progesterone-treated, full-grown Rana pipiens oocyte

The Journal of Experimental Zoology
R G Kessel, S Subtelny

Abstract

In full-grown but immature Rana pipiens ovarian oocytes, stacks of annulate lamellae are preferentially localized in the ooplasm between the germinal vesicle and the animal pole.l Furthermore, the largest stacks of these porous cytomembranes tend to be localized deeper in the ooplasm in proximity to the germinal vesicle, while smaller, but variable-sized stacks of annulate lamellae area found closer to the oolemma of the animal pole. Manually defolliculated, full-grown oocytes were cultured in progesterone for periods of 1, 3, 5, 6, 9, 12, 16, 18, and 22 hours at 18 degrees C. Annulate lamellae were observed in the animal pole ooplasm after 1, 3, 5, 6, and 9 hours of in vitro culture in progesterone at 18 degrees C. In contrast, annulate lamellae were not observed in fully grown oocytes cultured in the progesterone for 12, 16, 18, or 22 hours at 18 degrees C. Rather, many localized areas in the animal pole ooplasm wer observed that contained large numbers of closely packed vesicles of different size. The largest clusters of vesicles were present in the ooplasm near the germinal vesicle. Progressing toward the oolemma of the animal pole, the vesicular clusters appeared to become smaller in area. These clusters of vesicles were n...Continue Reading

References

Jan 1, 1975·Theriogenology·J L McGuireG D Turner
Jan 1, 1972·Zeitschrift für Zellforschung und mikroskopische Anatomie·R G Kessel, R S Decker
Jun 1, 1971·The Journal of Experimental Zoology·Y Masui, C L Markert
Jan 1, 1971·Zeitschrift für Zellforschung und mikroskopische Anatomie·R G Kessel
Jun 7, 1968·Science·R E EckerS Subtelny
Mar 1, 1968·The Journal of Cell Biology·R G Kessel
Sep 1, 1968·Developmental Biology·R E Ecker, L D Smith
Mar 1, 1969·Developmental Biology·L D Smith, R E Ecker

❮ Previous
Next ❯

Citations

Nov 1, 1990·Journal of Electron Microscopy Technique·R A Wallace, K Selman
Nov 1, 1990·Journal of Electron Microscopy Technique·W M Bement, D G Capco
Jan 1, 1989·Electron Microscopy Reviews·R G Kessel
Feb 1, 1988·Journal of Ultrastructure and Molecular Structure Research·E D Allen
May 1, 1993·Zygote : the Biology of Gametes and Early Embryos·N S Duesbery, Y Masui
Dec 1, 1984·Experimental Cell Research·A CartaudR Ozon
Jan 1, 1982·Teratogenesis, Carcinogenesis, and Mutagenesis·D M Kochhar
Jun 27, 2013·Wiley Interdisciplinary Reviews. Developmental Biology·Douglas W Houston

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.