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. 

Hindgut Ciliate Composition of Thoroughbred Mares in Kentucky, USA, and Binary Fission in Polymorphella ampulla

Zootaxa ◽  
2019 ◽  
Vol 4646 (2) ◽  
pp. 369-384
Author(s):  
GÖZDE GÜRELLİ ◽  
EUGENE THOMAS LYONS ◽  
FEVZİYE IŞIL KESBİÇ
Keyword(s):  
Species Composition ◽  
Average Density ◽  
Binary Fission ◽  
Electron Microscopic ◽  
Microscopic Images ◽  
Ciliate Species ◽  
Scanning Electron Microscopic ◽  
Species Composition And Distribution ◽  
Scanning Electron

Species composition and distribution of hindgut ciliates were investigated in the feces of 20 thoroughbred mares in Kentucky, USA. Thirty-three species and six morphotypes belonging to 21 genera were identified. The average density of hindgut ciliates in mares was 13.5 ± 13.7 × 104 cells ml−1, whereas mean number of ciliate species per host was 14.4 ± 5.3. Bundleia nana, B. elongata, B. piriformis, Blepharoconus hemiciliatus, Holophryoides ovalis, H. macrotricha, Blepharoprosthium polytrichum, Prorodonopsis coli, Paraisotrichopsis composita, Blepharocorys microcorys, and Ochoterenaia appendiculata were the first identified species in horses inhabited in USA. Scanning electron microscopic images of Holophryoides macrotricha, Paraisotrichopsis composita, Cycloposthium dentiferum m. corrugatum, C. edentatum m. edentatum, C. edentatum m. scutigerum, Tetratoxum parvum m. parvum, T. parvum m. sulcatum, T. excavatum m. excavatum, Allantosoma intestinale, and Arcosoma brevicorniger were studied. Binary fission in Polymorphella ampulla was also studied. 

Rumen Ciliate Fauna of Domestic Sheep in Kastamonu, Turkey, and Infraciliature of Diplodinium quinquespinosum, Metadinium affine, and M. tauricum (Entodiniomorphida, Ophryoscolecidae)

Zootaxa ◽  
2019 ◽  
Vol 4695 (6) ◽  
pp. 550-558
Author(s):  
BELMA BERBER ◽  
GÖZDE GÜRELLİ
Keyword(s):  
Species Distribution ◽  
Ovis Aries ◽  
Domestic Sheep ◽  
First Report ◽  
Ciliate Species ◽  
The Mean ◽  
First Time ◽  
Medium Type

Species distribution and composition of the ciliates found in the ruminal contents of 15 domestic sheep (Ovis aries) living in Kastamonu, Turkey, were investigated. Twenty-four species and 8 morphotypes belonging to 10 genera were identified. The density of the rumen ciliates in sheep was 108.2 (± 150.8) × 104 cells ml−1, and the mean number of ciliate species per host was 10.7 ± 4.6. Among the ciliate species identified, Dasytricha ruminantium was the most abundant, with a prevalence of 93.3%, whereas Diplodinium quinquespinosum, Eudiplodinium rostratum, and Metadinium tauricum were detected in only one animal (6.7% prevalence). D. quinquespinosum, Eudiplodinium rostratum, and Entodinium simulans m. dubardi were detected for the first time in sheep from Turkey. This is the first report of the presence of D. quinquespinosum in the rumen of ruminants in Turkey. The infraciliature of D. quinquespinosum, Metadinium affine, and M. tauricum (Entodiniomorphida, Ophryoscolecidae) was investigated. D. quinquespinosum and M. affine had Diplodinium-type infraciliature, whereas M. tauricum possessed Metadinium medium-type infraciliature. 

scholarly journals Chorion Structure of Diapause and Subitaneous Eggs of Four Diaptomid Copepods (Calanoida, Diaptomidae): SEM Observations

2010 ◽  
Vol 44 (3) ◽  
pp. e-26-e-32 ◽  
Author(s):  
L. Samchyshyna ◽  
B. Santer
Keyword(s):  
Microscopic Examination ◽  
Smooth Surface ◽  
Electron Microscopic Examination ◽  
Electron Microscopic ◽  
Patterned Surface ◽  
Scanning Electron Microscopic ◽  
Surface Ornamentation ◽  
The Mean ◽  
Diaptomid Copepods ◽  
Scanning Electron

Chorion Structure of Diapause and Subitaneous Eggs of Four Diaptomid Copepods (Calanoida, Diaptomidae): SEM ObservationsScanning electron microscopic examination of diapause eggs of freshwater CalanoidaHemidiaptomus amblyodonMarenzeller,Eudiaptomus vulgaris(Schmeil),E. graciloides(Lilljeborg) and subitaneous one s ofE. gracilis(Sars) is described. The chorion surface ornamentation and number of coated layers are revealed. Diapause eggs have a thick (0.6-4.8 μ), at least two-layered chorion with patterned surface, whereas subitaneous eggs have a thin (0.13-0.25 μ), single-layered chorion with smooth surface. The mean number of eggs in egg sac, diameter of eggs and thickness of chorion were measured. The significance of the egg chorion thickness for diaptomid species inhabited temporary and/or permanent water-bodies is discussed.

scholarly journals Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation

2017 ◽  
Vol 4 (10) ◽  
pp. 170778 ◽  
Author(s):  
Jiacheng Wei ◽  
Mohd Shahneel Saharudin ◽  
Thuc Vo ◽  
Fawad Inam
Keyword(s):  
Colloidal Stability ◽  
Mechanical Analysis ◽  
Electron Microscopic ◽  
Graphene Nanocomposites ◽  
Dispersion Component ◽  
Graphene Dispersion ◽  
Scanning Electron Microscopic ◽  
Hildebrand Solubility Parameter ◽  
First Time ◽  
Scanning Electron

It is generally recognized that dimethylformamide (DMF) and ethanol are good media to uniformly disperse graphene, and therefore have been used widely in the preparation of epoxy/graphene nanocomposites. However, as a solvent to disperse graphene, dichlorobenzene (DCB) has not been fully realized by the polymer community. Owing to high values of the dispersion component ( δ d ) of the Hildebrand solubility parameter, DCB is considered as a suitable solvent for homogeneous graphene dispersion. Therefore, epoxy/graphene nanocomposites have been prepared for the first time with DCB as a dispersant; DMF and ethanol have been chosen as the reference. The colloidal stability, mechanical properties, thermogravimetric analysis, dynamic mechanical analysis and scanning electron microscopic images of nanocomposites have been obtained. The results show that with the use of DCB, the tensile strength of graphene has been improved from 64.46 to 69.32 MPa, and its flexural strength has been increased from 97.17 to 104.77 MPa. DCB is found to be more effective than DMF and ethanol for making stable and homogeneous graphene dispersion and composites.

scholarly journals A scanning electron microscopic study of impala (Aepyceros melampus) sperm from the Kruger National Park

Koedoe ◽  
1996 ◽  
Vol 39 (2) ◽  
Author(s):  
D.J. Ackerman ◽  
A.J. Reinecke ◽  
H.J. Els
Keyword(s):  
National Park ◽  
Morphological Characteristics ◽  
Kruger National Park ◽  
Electron Microscopic ◽  
Scanning Electron Microscopic Study ◽  
New Findings ◽  
Scanning Electron Microscopic ◽  
The Mean ◽  
Scanning Electron ◽  
Aepyceros Melampus

Since knowledge of sperm morphological characteristics can play an important role in semen evaluation and fertilisation, baseline data on sperm ultrastructure are required. Live spermatozoa were collected from the cauda epididymis from 64 impala rams in the Kruger National Park and 5082 spermatozoa from 40 of these impala were studied by scanning electron microscopy. The mean length of impala sperm was 59.23 @ 2.7 um. The morphology of normal sperm as well as the occurrence of abnormalities were documented. The morphology of impala sperm were compared with those of other mammals. New findings on appendages of the cytoplasmic droplet are described and interpreted.

Review of Notacanthella Jacobus & McCafferty, 2008 (Ephemeroptera: Ephemerellidae) in Thailand, with the redescription of Notacanthella commodema (Allen, 1971)

Zootaxa ◽  
2020 ◽  
Vol 4731 (3) ◽  
pp. 414-424 ◽  
Author(s):  
CHONLAKRAN AUYCHINDA ◽  
MICHEL SARTORI ◽  
BOONSATIEN BOONSOONG
Keyword(s):  
Microscopic Technique ◽  
Electron Microscopic ◽  
Electron Microscopic Technique ◽  
Scanning Electron Microscopic ◽  
Thoracic And Abdominal ◽  
First Time ◽  
Scanning Electron

Larvae of the Notacanthella Jacobus & McCafferty, 2008 species N. commodema (Allen, 1971) and N. quadrata (Kluge & Zhou, 2004) from Thailand are compared and redescribed. Both species have serrations on maxillary canines, as does N. perculta (Allen, 1971) from Vietnam, and this contributes to synonymizing the subgenus Samiocca Jacobus & McCafferty, 2008 under Notacanthella s.s. (= Samiocca n. syn.). The Thailand species can be differentiated by the numbers of thoracic and abdominal tubercles. In addition, the chorionic structure of N. quadrata is investigated for the first time by scanning electron microscopic technique. 

scholarly journals New record for Asia-Pacific of Protoperidinium anomaloplaxum (Peridiniales, Dinophyceae) from Vietnamese waters

2020 ◽  
Vol 42 (2) ◽  
Author(s):  
Phan Tan Luom ◽  
Nguyen Ngoc Lam ◽  
Doan Nhu Hai
Keyword(s):  
Geographic Distribution ◽  
New Record ◽  
Line Drawing ◽  
Asia Pacific ◽  
Electron Microscopic ◽  
Pacific Waters ◽  
Scanning Electron Microscopic ◽  
First Time ◽  
Scanning Electron

Minusculum (Lebour) Balech is one of four subgenera of the genus Protoperidinium Bergh 1881. Only five species of this subgenus have been discovered worldwide, most of which are distributed in cold waters. In this study, Protoperidinium anomaloplaxum (Balech) Balech is reported from Vietnam and thus for the first time from Asia-Pacific waters. This species is illustrated with line drawing, light and scanning electron microscopic photographs and described details of the ornamentation of the thecal plates as well as its geographic distribution. 

scholarly journals Redescription of Polyplastron alaskum Dehority, 1974 (Ciliophora, Entodiniomorphida), a Rare Rumen Ciliate Species from Domestic and Wild Sheep

2020 ◽  
Vol 59 (2) ◽  
pp. 61-65
Author(s):  
Franciane Cedrola ◽  
Marta D'agosto ◽  
Isabel Martinele ◽  
Roberto Júnio Pedroso Dias
Keyword(s):  
Original Description ◽  
Morphological Characterization ◽  
Ovis Aries ◽  
Northeastern Brazil ◽  
Domestic Sheep ◽  
Time Data ◽  
Ciliate Species ◽  
Ovis Dalli ◽  
Wild Sheep ◽  
First Time

The present study redescribes the species Polyplastron alaskum based on morphological characterization and provides, for the first time, data on its infraciliary bands pattern. Polyplastron alaskum was described in Alaskan dall montain sheep (Ovis dalli), and registered again only in the present study, 45 years later, inhabiting the rumen contents of domestic sheep (Ovis aries) in northeastern Brazil. All the taxonomic characters observed in the original description was observed in the present study. The infraciliary pattern in Polyplastron alaskum is slightly different of Diplodinium-type, observed in some ophryoscolecids belonging to the subfamily Diplodiniinae.

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