Browsing by Author "Gürelli G."

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A Tribute to Prof. Dr. Bayram Göçmen (23 December 1965-22 March 2019)
(2019-06-30) Yildiz M.Z.; Gürelli G.; Yalçinkaya D.; Akman B.; İğci N.; Kariş M.; Oğuz M.A.
If there’s something written to my destiny: “Biology/Zoology is not a profession for me, it’s my lifestyle. My feelings, approaches and reactions are coming out of this lifestyle. If you want to learn something, experience it! If you take nature as an example, there is no chance of making a mistake! That’s the right way!” - Prof. Dr. Bayram GÖÇMEN We (and many people around the world who know him) are in deep sorrow to lose Prof. Dr. Bayram GÖÇMEN, who passed away on 22 March 2019. He will always be remembered with his passion to biology, the invaluable works and students he left behind.
About ciliates Entodinium palmare and E. okoppensis (Ciliophora: Ophryoscolecidae) in the rumen of domestic cattles (Bos taurus taurus) in the vicinity of Kastamonu
(2012-04-01T00:00:00Z) Gürelli, Gözde
The aim of this study was to determine the cytological features of the rumen ciliates Entodinium palmare and E. okoppensis living in the rumen of domestic cattle in the vicinity of Kastamonu, compare the morphological characters of species with their original descriptions and discuss the similarities and differences.
[About ciliates Entodinium palmare and E. okoppensis (Ciliophora: Ophryoscolecidae) in the rumen of domestic cattles (Bos taurus taurus) in the vicinity of Kastamonu].
(2012-01-01) Gürelli G.
The aim of this study was to determine the cytological features of the rumen ciliates Entodinium palmare and E. okoppensis living in the rumen of domestic cattle in the vicinity of Kastamonu, compare the morphological characters of species with their original descriptions and discuss the similarities and differences. The specimens were obtained from 24 cattle, fixed with 10% formalin and stained with methylgreen formalin saline (MFS) solution. Specimens were measured from cattle in our country, and were found to be similar to the original description on the basis of morphological characteristics and biometric data. With this investigation, E. palmare and E. okoppensis were firstly detected from our cattle and were secondly detected from cattle throughout the world. E. palmare and E. okoppensis have low frequency appearance and percentage composition in our cattle. This study concluded that the feeding habits and feeding frequencies of cattle, the physiological conditions of rumen or competition between species can be important reasons for this situation.
Ciliated protozoan fauna in the forestomach of dromedary camels (Camelus dromedarius) in Libya
(2018-06-18) Gürelli G.; Mohamed A.
Species composition and distribution of ciliated protozoa obtained from the forestomach of 20 dromedary camels living in Zawiya, Libya were examined. Nineteen species and 10 morphotypes belonging to eight genera were identified. The mean number of ciliates was 54.2 ± 32.9 × 104 cells ml-1 in the forestomach contents, and the mean number of ciliate spe-cies per host was 6.5 ± 2.9. Entodinium and Epidinium were the main genera, as these ciliates were found consistently at higher proportions than those of the other genera. In contrast, Ophryoscolex and Polyplastron were only observed at low frequencies. Diplodinium rangiferi, Entodinium ellipsoideum, E. simulans, and Polyplastron multivesiculatum were new endosymbionts recorded from camels.
Endosymbiotic ciliated protozoan biota of dromedary camels and domestic cattle in Tunisia
(2020-10-07) Gürelli G.; Daw A.F.O.E.
Species concentration and composition of endosymbiotic ciliates were investigated in the forestomach contents of 12 dromedary camels (Camelus dromedarius) and the ruminal contents of 16 domestic cattle (Bos taurus taurus) living in Ben Gardane, Tunisia. Sixteen species and 8 morphotypes, belonging to 8 genera, were identified from dromedary camels, and 18 species and 13 morphotypes, belonging to 8 genera, were identified from domestic cattle. This is the first report on the endosymbiotic ciliated protozoan biota of dromedary camels and cattle living in Tunisia. The mean density (± SD) of ciliates in the forestomach samples of dromedary camels and the ruminal samples of domestic cattle was 65.4 ± 69.4 × 104 cells mL-1 and 54.2 ± 55.8 × 104 cells mL-1, respectively. Diplodinium cameli and Blepharoconus krugerensis were detected for the first and second time, respectively, from the ruminal contents of cattle. Caloscolex camelinus and B. krugerensis were studied in detail with a scanning electron microscope.
Entodinium dalli m. monospinatum n.m. and Entodinium dalli m. triangulobatum n.m., two new morphotypes of Entodinium dalli Dehority, 1974, from Turkish Cattle
(2013-12-01) Gürelli G.; Dehority B.
Abstract. In the course of examining the rumen contents obtained from 25 domestic cattle (Bos taurus taurus) in the vicinity of Kastamonu, Turkey, several new morphotypes of Entodinium dalli Dehority, 1974 were identified. The new morphotypes of this species, E. dalli m. monospinatum n.m. and E. dalli m. triangulabatum n.m. were identified on the basis of differences in their caudal spines and lobes. Including the previously described morphotype Entodinium dalli m. rudidosospinatum brings the total number of E. dalli morphotypes to four. The size and percentage occurence of this species in the present study is compared to those previously reported for other animal hosts living in different geographical locations. ©Biharean Biologist, Oradea, Romania, 2013.
Fecal ciliate composition of domestic horses (Equus caballus Linnaeus, 1758) living in Kyrgyzstan
(2015-11-03) Gürelli G.; Canbulat S.; Aldayarov N.
Species composition and distribution of intestinal ciliates were investigated in the feces from 15 domestic horses living in Bishkek, Kyrgyzstan. Twenty-three species belonging to 14 genera were identified. This is the first study on intestinal cil-iates in domestic horses living in Kyrgyzstan. The mean number of ciliates was 14.1 ± 6.8 ×104 cells ml-1 of feces and the mean number of ciliate species per host was 6.0 ± 3.2. No endemic or new species were detected. Blepharocorys was the major genus as these ciliates were detected in high proportions. In contrast Holophryoides, Allantosoma were only ob-served at low frequencies. Recorded ciliate species in this investigation had almost the same characteristics as those de-scribed in previous studies. There was no important geographic variation in the intestinal ciliate fauna of equids.
First record of Diplodinium rangiferi Dogiel, 1925 (Ophryoscolecidae, Entodiniomorphida) from domestic cattle
(2014-03-17) Gürelli G.
Diplodinium rangiferi was observed in rumen contents from a single animal out of 25 cattle surveyed in the area of Kastamonu, Turkey. It constituted 2.7% of the total ciliate population and had a 4% frequency of appearance. The size and percentage occurrence of this species in the present study are compared to those previously reported for other animal hosts living in different geographical locations. This study reports for the first time in Turkey and the world the naturally occurring presence of D. rangiferi in cattle. © TÜBİTAK.
First record of Diplodinium rangiferi Dogiel, 1925 (Ophryoscolecidae, Entodiniomorphida) from domestic cattle
(2014-03-17) Gürelli G.; Gurelli, G
Diplodinium rangiferi was observed in rumen contents from a single animal out of 25 cattle surveyed in the area of Kastamonu, Turkey. It constituted 2.7% of the total ciliate population and had a 4% frequency of appearance. The size and percentage occurrence of this species in the present study are compared to those previously reported for other animal hosts living in different geographical locations. This study reports for the first time in Turkey and the world the naturally occurring presence of D. rangiferi in cattle. © TÜBİTAK.
First record of the natural infection of Chondrus tournefortianus (Mollusca: Pulmonata) by Dicrocoeliidae (Digenea) larval stages in Kastamonu, Turkey
(2016-01-01) Gürelli G.; Alay M.
The prevalence of larval stages of Dicrocoeliidae in the land snail, Chondrus tournefortianus (Férussac, 1821), found in Kastamonu, Turkey, was investigated and some of its morphological and histological features were determined. The snail samples were collected in spring and autumn. C. tournefortianus has been reported for the first time as being an intermediate host in the life cycle of Dicrocoeliid (Trematoda: Digenea) species. The prevalence of the infection in Kastamonu, Turkey was 2.27%, with the highest value occurring in October.
Importance of Land Snails in Dicrocoeliosis Epidemiology
(2017-09-01) Gürelli G.
Dicrocoeliosis is a helminthosis caused by the small liver fluke Dicrocoelium spp. (Trematoda, Dicrocoeliidae) parasitizing in the bile ducts and gall bladder of ruminants as well as many other animal species including humans. In the biological life cycle of Dicrocoelium, land snails are first intermediate hosts and ants are second intermediate hosts. Sporocysts and cercaria, which are larval stages, live in the hepatopancreas of land snails and metacercaria, which is also the larval stage, lives in the abdomen and brain of ants. Land snails, which are the first intermediate host of this parasite in Turkey, include Helicopsis derbentina, Helicopsis protea, Helicopsis krynickii, Cernuella virgata, Trochoidea pyramidata, Cochicella acuta, Monacha carthusiana, Helicella candicans, Helix aspersa, Helix lucorum, and Chondrus tournefortianus. Dicrocoeliosis is widespread in ruminants and affects their liver, which can lead to weight loss and reduced milk production. The number of reports on dicrocoeliosis is increasing due to the expansion of dry habitats and parasites becoming resistant to antihelminthic drugs. This study provides information on the epidemiology and control methods of Dicrocoelium.
Importance of Land Snails in Dicrocoeliosis Epidemiology.
(2017-09-01T00:00:00Z) Gürelli, Gözde
Dicrocoeliosis is a helminthosis caused by the small liver fluke Dicrocoelium spp. (Trematoda, Dicrocoeliidae) parasitizing in the bile ducts and gall bladder of ruminants as well as many other animal species including humans. In the biological life cycle of Dicrocoelium, land snails are first intermediate hosts and ants are second intermediate hosts. Sporocysts and cercaria, which are larval stages, live in the hepatopancreas of land snails and metacercaria, which is also the larval stage, lives in the abdomen and brain of ants. Land snails, which are the first intermediate host of this parasite in Turkey, include Helicopsis derbentina, Helicopsis protea, Helicopsis krynickii, Cernuella virgata, Trochoidea pyramidata, Cochicella acuta, Monacha carthusiana, Helicella candicans, Helix aspersa, Helix lucorum, and Chondrus tournefortianus. Dicrocoeliosis is widespread in ruminants and affects their liver, which can lead to weight loss and reduced milk production. The number of reports on dicrocoeliosis is increasing due to the expansion of dry habitats and parasites becoming resistant to antihelminthic drugs. This study provides information on the epidemiology and control methods of Dicrocoelium.
Intestinal ciliate fauna of the Asian elephant from Gaziantep, Turkey and the description of Brevitentaculum antebum n. g., n. sp.
(2016-10-01T00:00:00Z) Gürelli, Gözde; Gurelli, G
The aims of this investigation were to identify and quantify ciliates inhabiting the large intestine of Asian elephants living in Gaziantep Zoo, Turkey, and to describe a new suctorian genus and species. Species composition and distribution of intestinal ciliates voided in the feces of two Asian elephants were examined. Fifteen species of intestinal ciliates, representing 7 genera, were identified. One new suctorian genus and species, Brevitentaculum antebum n. g., n. sp., was described. This new species has two short truncated terminal projections, with two longitudinally lined bands located between the two projections, near the convex surface of the cell. Short clavate-like tentacles are in two fascicles near each base of terminal projections on the flattened surface of the body. Ciliate densities in the two fecal samples were 4.5×10mL and 10×10mL.
Intestinal ciliate fauna of the Asian elephant from Gaziantep, Turkey and the description of Brevitentaculum antebum n. g., n. sp.
(2016-10-01) Gürelli G.
The aims of this investigation were to identify and quantify ciliates inhabiting the large intestine of Asian elephants living in Gaziantep Zoo, Turkey, and to describe a new suctorian genus and species. Species composition and distribution of intestinal ciliates voided in the feces of two Asian elephants were examined. Fifteen species of intestinal ciliates, representing 7 genera, were identified. One new suctorian genus and species, Brevitentaculum antebum n. g., n. sp., was described. This new species has two short truncated terminal projections, with two longitudinally lined bands located between the two projections, near the convex surface of the cell. Short clavate-like tentacles are in two fascicles near each base of terminal projections on the flattened surface of the body. Ciliate densities in the two fecal samples were 4.5 × 104 mL-1 and 10 × 104 mL-1.
Intestinal ciliated protozoa of the Asian elephant Elephas maximus Linnaeus, 1758 with the description of Triplumaria izmirae n. sp.
(2014-02-01) Gürelli G.; Ito A.
Species composition and distribution of intestinal ciliates excreted in the feces of three Asian elephants living in Sasali National Park, Izmir, Turkey, were investigated. Seven ciliate genera consisting of 36 species were identified. This is the first report on intestinal ciliates in elephants living in Turkey; one new species, T. izmirae n. sp., was described. This new species has a special macronucleus shape, skeletal rod plates with two wings and posterior contractile vacuole lying beneath the dorsal left base of the tail flap. The buccal infraciliary bands of T. izmirae are similar to those of T. selenica and T. suwako known from elephants. Triplumaria ovina and Raabena bella occurred in highest percentages in two elephants, whereas Latteuria polyfaria was highest in the third one. Ciliate densities in the three fecal samples were 3.5, 1.5 and 5.0×104/mL. © 2013 Elsevier GmbH.
Intestinal Ciliates of Plains Zebra (Equus quagga Gmelin, 1788) in Turkey
(2023-02-08) Gürelli G.
An investigation was carried out to identify the intestinal ciliated protozoa of the plains zebra known as Burchell's zebra (Equus quagga burchellii Gray, 1824) living in Sasalı National Park (İzmir, Turkey) and Gaziantep Zoo (Gaziantep, Turkey) and of the plains zebra known as Grant's zebra (Equus quagga boehmi Matschie, 1892) living in Darıca Faruk Yalçın Zoo (Darıca, Turkey). A total of 27 species and 1 morphotype belonging to 17 genera and 6 families were detected. Bundleia elongata was identified in all examined zebras, whereas Bundleia inflata, Blepharoconus benbrooki, Blepharocorys cardionucleata, Circodinium minimum, Cycloposthium bipalmatum, Ditoxum brevinucleatum, D. hamulus, and Arcosoma brevicorniger were identified only in one zebra. The average quantity of intestinal ciliates in the 9 zebras was 11.0 ± 17.0 × 104 cells mL−1. According to this study, the total number of ciliate species in the intestine of zebras increased to 51. This is the first time a report has been made on Paraisotricha colpoidea, Blepharoprosthium polytrichum, Bundleia elongata, B. triangularis, Paraisotrichopsis composita, Arcosoma brevicorniger, and A. dicorniger from zebra intestines. Moreover, A. brevicorniger was observed in binary fission for the first time.
Intestinal Ciliates of Plains Zebra (Equus quagga Gmelin, 1788) in Turkey.
(2023-02-08T00:00:00Z) Gürelli, Gözde; Gurelli, G
An investigation was carried out to identify the intestinal ciliated protozoa of the plains zebra known as Burchell's zebra (Equus quagga burchellii Gray, 1824) living in Sasalı National Park (İzmir, Turkey) and Gaziantep Zoo (Gaziantep, Turkey) and of the plains zebra known as Grant's zebra (Equus quagga boehmi Matschie, 1892) living in Darıca Faruk Yalçın Zoo (Darıca, Turkey). A total of 27 species and 1 morphotype belonging to 17 genera and 6 families were detected. Bundleia elongata was identified in all examined zebras, whereas Bundleia inflata, Blepharoconus benbrooki, Blepharocorys cardionucleata, Circodinium minimum, Cycloposthium bipalmatum, Ditoxum brevinucleatum, D. hamulus, and Arcosoma brevicorniger were identified only in one zebra. The average quantity of intestinal ciliates in the 9 zebras was 11.0 ± 17.0 × 104 cells mL-1. According to this study, the total number of ciliate species in the intestine of zebras increased to 51. This is the first time a report has been made on Paraisotricha colpoidea, Blepharoprosthium polytrichum, Bundleia elongata, B. triangularis, Paraisotrichopsis composita, Arcosoma brevicorniger, and A. dicorniger from zebra intestines. Moreover, A. brevicorniger was observed in binary fission for the first time.
Libya’daki Keçi ve Koyunların İşkembe Siliyat Faunasının Karşılaştırmalı Çalışması
(2021-12-02) Gürelli G.; Mohamed A.R.A.
OBJECTIVE: This study aims to provide comparative information on the rumen ciliate fauna of goat (Capra aegagrus hircus) and sheep (Ovis aries) living in Zawiya, Libya. METHODS: We obtained rumen samples from 16 goats and 17 sheep after the slaughter in Zawiya, Libya between June and August 2016. We immediately fixed the well-mixed samples with an equal volume of 18.5% formalin. We filtered and stained the samples in the laboratory with methyl green formalin saline solution to determine the nuclei and added 2% Lugol's iodine solution to visualize the skeletal plates. RESULTS: We found that the mean number (± standard deviation) of ciliates in the rumen contents from goats and sheep was 70.9±61.6×104 cells mL-1 (minimum-maximum value, 4.0-187.0×104 cells mL-1) and 96.3±49.3×104 cells mL-1 (minimum-maximum value, 19.5-235.0×104 cells mL-1), respectively. Results also showed that the total number of species per goat and sheep was 1-17 (mean, 8.2±4.7) and 1-13 (mean, 7.9±3.8), respectively. We identified 10 genera, 19 species, and 11 morphotypes in goats and 9 genera, 16 species, and 13 morphotypes in sheep. Additionally, we found that Entodinium simulans prevalence in all goats and sheep was 100%. On the other hand, we observed Hsiungia triciliata and Ostracodinium gracile in only one goat (6.3% prevalence) and Polyplastron multivesiculatum in only one sheep (5.9% prevalence). Overall, the ruminal ciliate fauna of goat and sheep in Libya comprised Entodinium species (mean for goats, 85.9%; mean for sheep, 83.5%). CONCLUSION: This study recorded Hsiungia triciliata as a new endosymbiont in goats. To our knowledge, this study is the first to report all of the species detected in goats from Libya. Similarly, this is the first to detect Diplodinium anisacanthum, Entodinium bursa, E. ellipsoideum, E. longinucleatum, E. simulans, Isotricha prostoma, Ophryoscolex caudatus, Ostracodinium gracile, and Polyplastron multivesiculatum in sheep from Libya.
Monacha samsunensis (Pfeiffer, 1868): another Anatolian species introduced to Western Europe, where it is known as Monacha atacis Gittenberger & de Winter, 1985 (Gastropoda: Eupulmonata: Hygromiidae)
(2022-01-01) Pieńkowska J.R.; Manganelli G.; Proćków M.; Gürelli G.; Kosicka E.; Giusti F.; Lesicki A.
Populations of Monacha atacis from southern Occitania in France and of M. samsunensis from northern Anatolia in Turkey (Atakum/Samsun and Kastamonu) were investigated by an integrative approach based on morphological (shell and genitalia) and molecular (mitochondrial and nuclear gene sequences) features. Morphological examination revealed a complex pattern of variation within and between geographically separated populations, while molecular analysis showed strong similarity between the two species, confirming earlier suggestions that the species are conspecific. Pfeiffer’s name Helix samsunensis introduced in 1868 has priority over the name M. atacis given by Gittenberger & de Winter in 1985.
Morphological features of Bundleia spp. (Ciliophora: Entodiniomorphida: Buetschliidae) and ontogenesis in Bundleia Cunha and Muniz 1928
(2014-12-01) Gürelli G.; Göçmen B.
OBJECTIVE: The aim of this study was to investigate the morphological features of 7 endocommensal ciliates, B. (s. str.) postciliata, B. (s. str.) piriformis, B. (s. str.) nana, B. (C.) elongata, B. (C.) triangularis, B. (F.) dolichosoma, and B. (F.) inflata belonging to the genus Bundleia, which exist in the hindgut of 15 Rahvan horses and 15 racing horses living in the vicinity of Izmir and to investigate the ontogenesis in the Bundleia genus.