Morphometrical, histological, and scanning electron microscopic investigations on the hard palate of Rahmani sheep ( Ovis aries )

2021 ◽  
Author(s):  
Fatma A. Madkour ◽  
Elsayed S. I. Mohammed ◽  
Rasha Radey ◽  
Mohammed Abdelsabour‐Khalaf
Keyword(s):  
Hard Palate ◽  
Ovis Aries ◽  
Electron Microscopic ◽  
Scanning Electron Microscopic ◽  
Microscopic Investigations ◽  
Scanning Electron

scholarly journals Rumen Ciliate Fauna of Domestic Sheep (Ovis aries) in İzmir, Turkey and Scanning Electron Microscopic Observations

Zootaxa ◽  
2017 ◽  
Vol 4286 (4) ◽  
pp. 545
Author(s):  
GÖZDE GÜRELLİ
Keyword(s):  
Abundant Species ◽  
Ovis Aries ◽  
Domestic Sheep ◽  
Electron Microscopic ◽  
Ciliate Species ◽  
Scanning Electron Microscopic ◽  
The Mean ◽  
Species Composition And Distribution ◽  
First Time ◽  
Scanning Electron

Species composition and distribution of ciliates were investigated in the rumen contents of 15 domestic sheep (Ovis aries) living in İzmir, Turkey. Twenty-three species and 11 morphotypes belonging to nine genera were identified. The density of ciliates was 118.3 ± 63.5 × 104 cells ml−1, and the mean number of ciliate species per host was 13.5 ± 5.3. Entodinium simulans was the most abundant species, with a prevalence of 100%. Two morphotypes of Diplodinium flabellum were identified, such as D. flabellum m. aspinatum and D. flabellum m. monospinatum, and E. simulans m. dubardi was found for the first time in domestic sheep in Turkey. The scanning electron microscopic observations of Entodinium longinucleatum, E. bursa, E. rectangulatum m. rectangulatum, E. semahatae, E. exiguum, E. minimum, E. simulans m. caudatum, E. dilobum, Diplodinium flabellum m. aspinatum, D. dentatum, Isotricha prostoma, Metadinium affine, Enoploplastrom triloricatum, Dasytricha ruminantium, Ophryoscolex caudatus m. tricoronatus, Epidinium ecaudatum m. parvicaudatum, and Polyplastron multivesiculatum were studied. 

The thallic mode of conidiogenesis in the Fungi Imperfecti

1975 ◽  
Vol 53 (24) ◽  
pp. 2983-3001 ◽  
Author(s):  
Garry T. Cole
Keyword(s):  
Extension Growth ◽  
Electron Microscopic ◽  
Conidium Formation ◽  
Scanning Electron Microscopic ◽  
Simple Conversion ◽  
Trichosporon Beigelii ◽  
Fungi Imperfecti ◽  
Microscopic Investigations ◽  
Scanning Electron

The current developmental concept of the thallic mode of conidiogenesis essentially involves the simple conversion and disarticulation of preexisting hyphal elements, in which extension growth has ceased, into conidia which are delimited by transverse septa. Two kinds of thallic development were originally interpreted from light microscopic investigations. In this paper, holothallic conidium formation, which is demonstrated by Geotricluim candidum, and enterothallic development, which is exemplified by Sporendonema purpurascens and Briosia cubispora, are compared and ultrastructural and karyological characteristics of these mechanisms of conidiogenesis are illustrated. Scanning electron microscopic analyses of conidium formation in Oidiodendron trancatum and Trichosporon beigelii and light microscopic investigations of Sympodiella sp. and Amblyosporium spongiosum have revealed that additional variations exist in the thallic mode of conidium ontogeny. On the basis of these new data, and a consideration of other species of imperfect fungi which demonstrate similar mechanisms of conidiogenesis, a revised concept of thallic development is presented.

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