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Articles 1 - 5 of 5
Full-Text Articles in Life Sciences
Septin Phosphorylation And Coiled-Coil Domains Function In Cell And Septin Ring Morphology In The Filamentous Fungus Ashbya Gossypii, Rebecca A. Meseroll, Patricia Occhipinti, Amy S. Gladfelter
Septin Phosphorylation And Coiled-Coil Domains Function In Cell And Septin Ring Morphology In The Filamentous Fungus Ashbya Gossypii, Rebecca A. Meseroll, Patricia Occhipinti, Amy S. Gladfelter
Dartmouth Scholarship
Septins are a class of GTP-binding proteins conserved throughout many eukaryotes. Individual septin subunits associate with one another and assemble into heteromeric complexes that form filaments and higher-order structures in vivo. The mechanisms underlying the assembly and maintenance of higher-order structures in cells remain poorly understood. Septins in several organisms have been shown to be phosphorylated, although precisely how septin phosphorylation may be contributing to the formation of high-order septin structures is unknown. Four of the five septins expressed in the filamentous fungus, Ashbya gossypii, are phosphorylated, and we demonstrate here the diverse roles of these phosphorylation sites …
Heterogeneity In Mitochondrial Morphology And Membrane Potential Is Independent Of The Nuclear Division Cycle In Multinucleate Fungal Cells, John P. Gerstenberger, Patricia Occhipinti, Amy S. Gladfelter
Heterogeneity In Mitochondrial Morphology And Membrane Potential Is Independent Of The Nuclear Division Cycle In Multinucleate Fungal Cells, John P. Gerstenberger, Patricia Occhipinti, Amy S. Gladfelter
Dartmouth Scholarship
In the multinucleate filamentous fungus Ashbya gossypii, nuclei divide asynchronously in a common cytoplasm. We hypothesize that the division cycle machinery has a limited zone of influence in the cytoplasm to promote nuclear autonomy. Mitochondria in cultured mammalian cells undergo cell cycle-specific changes in morphology and membrane potential and therefore can serve as a reporter of the cell cycle state of the cytoplasm. To evaluate if the cell cycle state of nuclei in A. gossypii can influ
Morphological Characterization Of The Immune Organs In Ostrich Chicks, Hui Song, Ke-Mei Peng, Sheng-He Li, Yan Wang, Lan Wei, Li Tang
Morphological Characterization Of The Immune Organs In Ostrich Chicks, Hui Song, Ke-Mei Peng, Sheng-He Li, Yan Wang, Lan Wei, Li Tang
Turkish Journal of Veterinary & Animal Sciences
This study describes the anatomical, light microscopic, and ultrastructural characterization of the immune organs in ostrich chicks. In this study 6 healthy 8-week-old ostrich chicks were processed for light and transmission electron microscopy. Hematoxylin and eosin as well as improved Weigert staining were used for light microscopy. The small thymus, which clustered caudally along both sides of the neck, contained Hassall's corpuscles in the medulla. The cloacal bursa, which formed the hanging and lateral walls of the cloaca, enveloped the cloaca but did not form a truly independent bursa. Inside the bursa convex papillae were densely distributed on the surface …
A Microscopic And Stereological Study Of The Renal Artery Transitional Zone Of The Adult Male Dog, Fatemah Ramezani Nowrozani
A Microscopic And Stereological Study Of The Renal Artery Transitional Zone Of The Adult Male Dog, Fatemah Ramezani Nowrozani
Turkish Journal of Veterinary & Animal Sciences
A transitional zone in the dog renal artery was documented and its parameters were recorded: length and volumes of the luminal wall, tunica intima, tunica media, and tunica adventitia-as well as these parameters in the non-transitional zone of artery. Twelve normal adult male dogs were studied. The specimens were processed in the routine manner for light and electron microscopy. After the determination of transitional zone length by light microscope, for the stereological study each renal artery was divided into transitional and non-transitional zones, and paraffin blocks were prepared. It was established that the transitional zone contains parallel and continuous elastic …
Transmission Electron Microscopic Study Of Renal Haemopoietic Tissues Of Channa Punctatus (Bloch) Experimentally Infected With Two Species Of Aeromonads, Rajarshi Ghosh, Sumit Homechaudhuri
Transmission Electron Microscopic Study Of Renal Haemopoietic Tissues Of Channa Punctatus (Bloch) Experimentally Infected With Two Species Of Aeromonads, Rajarshi Ghosh, Sumit Homechaudhuri
Turkish Journal of Zoology
The ultrastructural pathological changes in the renal haemopoietic tissue of Channa punctatus (Bloch) experimentally infected with 2 species of aeromonads, Aeromonas hydrophila and Aeromonas salmonicida, were reported. Adult C. punctatus specimens were injected intramuscularly, once at a time, with a chosen sublethal dose (2 × 10^9 cfu mL^-^1) of aeromonads at 5 µL g^-^1 body weight of fish and were exposed to 72 h of duration. The leucocytes (especially macrophages and melanomacrophages) and other associated cells from the pronephric head kidney of aeromonad-infected C. punctatus were studied by fixed ultrathin sections for transmission electron microscopy. The sinusoidal cells, barrier cells, …