Person: ÇAKMAK, İBRAHİM
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ÇAKMAK
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İBRAHİM
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Publication Honey bee drone (Apis mellifera) sperm cryopreservation with rainbow trout seminal plasma supplemented extenders(Hellenic Veterinary Medical Soc, 2022-01-01) Alçay, S.; Çakmak, S.; Çakmak, I.; Aktar, A.; Yılmaz, M.; Üstüner, B.; Duman, M.; Özkan, H.; Akkaya, Y.; Sağırkaya, H.; Nur, Z.; Alçay, S.; Çakmak, S.; ÇAKMAK, İBRAHİM; Aktar, A.; Yılmaz, M.; Üstüner, B.; Duman, M.; Özkan, H.; Akkaya, Y.; Sağırkaya, H.; Nur, Z.; Arıcılık Geliştirme Uygulama ve Araştırma Merkezi; Döreme ve Suni Tohumlama Ana Bilim Dalı; 0000-0002-8000-5770; 0000-0002-2975-2594; 0000-0001-6050-791X; 0000-0001-7707-2705; 0000-0002-1438-221X; T-1697-2019; AAH-2635-2021; GWC-2055-2022; T-1697-2019; AAG-7238-2021The current study aimed to investigate the effects of rainbow trout seminal plasma (RTSP) on frozen-thawed honey bee drone spermatozoa. Semen samples were collected from sexually mature drones and pooled. Then pooled semen was diluted with different concentrations of RTSP (2.5%/5% / 10%) and without RTSP (control) supplemented extenders. Motility, plasma membrane functionality, acrosome integrity, and mitochondrial function were negatively affected by the cryopreservation process but DNA integrity was not affected. Membrane lipid peroxidation status was also analyzed using the malondialdehyde (MDA) concentration at frozen-thawed. RTSP10 groups had a positive effect on sperm motility (64.00 +/- 3.38%), plasma membrane functionality (72.07 +/- 2.12%), acrosome integrity (86.20 +/- 2.11%), and mitochondrial function (69.33 +/- 2.94%) compared to the control group (P< 0.05). The study shows that RTSP supplemented extenders have beneficial effects on at frozen-thawed drone sperm parameters. The results of the present study demonstrated the advantage of using a 10% RTSP supplemented extender for drone sperm motility, plasma membrane functionality, and mitochondrial function.Publication Sublethal effects of deltamethrin on apis mellifera in Turkey(Oxford Univ Press, 2015-04-01) Salazar, T. R.; Young, C.; Naranjo, S. M.; Pastor, M. J.; Plasencia, M.; Güneş, N.; Çakmak, İ.; Hranitz, J. M.; GÜNEŞ, NAZMİYE; ÇAKMAK, İBRAHİM; Uludağ Üniversitesi; 0000-0002-9347-8307; AAI-1930-2021; EOG-5433-2022Publication Effects of honey enrichment with Spirulina platensis on phenolics, bioaccessibility, antioxidant capacity and fatty acids(Elsevier, 2021-09-12) Güldaş, Metin; Gürbüz, Ozan; Çakmak, İbrahim; Yıldız, Elif; Şen, Hasan; GÜLDAŞ, METİN; GÜRBÜZ, OZAN; ÇAKMAK, İBRAHİM; YILDIZ, ELİF; Sağlık Bilimleri Fakültesi; Gıda Teknolojisi Bölümü; 0000-0002-5187-9380; 0000-0001-7871-1628; 0000-0003-1356-9012; GLT-7125-2022; AAG-6424-2021; U-1332-2019; KFC-1744-2024The honeybees have been fed by Spirulina platensis extract and algal honey with green color produced by the bees naturally was obtained the first time in order to enhance its medicinal properties, mainly antioxidant properties. Antioxidant capacity, bioaccessibility of phenolics, hydrolysable and extractable phenolics, sugar, phenolic and fatty acid profiles were determined in the Spirulina honey. Total phenolic content of the Spirulina honey was 14.37 mg GAE/100g and increased 28.53% with Spirulina enrichment. Antioxidant capacities of the Spirulina honey were determined as 6.31, 5.85 and 3.66 mu mol Trolox/g by ABTS, CUPRAC and DPPH methods in bioaccessible extracts. No significant difference was observed between control and Spirulina honey samples in terms of bioaccessibility of the total phenolics (p <= 0.01). Among the detected phenolic compounds (15 phenolics), acacetin (48.55%) and pinocembrine (47.13%) were the highest. Total phenolic content of the honey can be enriched up to 20% by feeding of the honey bees with 10% of Spirulina. Saccharose content in Spirulina honey was lower than the control honey as 4.42%.Publication Drone semen cryopreservation with protein supplemented tl-hepes based extender(Kafkas Univ, Veteriner Fakultesi Dergisi, 2019-07-01) Alcay, Selim; ALÇAY, SELİM; Çakmak, Selvinar; Çakmak, İbrahim; ÇAKMAK, İBRAHİM; Mülkpınar, Emine; Toker, Mehmed Berk; TOKER, MEHMED BERK; Üstüner, Burcu; ÜSTÜNER, BURCU; Şen, Hasan; Nur, Zekariya; NUR, ZEKARİYA; Veteriner Fakültesi; 0000-0002-1438-221X; AAH-2635-2021; AAH-2558-2021; AAG-7238-2021; A-2794-2014The aim of the current study was to determine the optimum concentration of bovine serum albumin for post-thawing quality of drone sperm and this is the first study to evaluate the effect of BSA supplemented TL-Hepes based extenders for drone semen cryopreservation. Sexually mature drones were used for semen collection. Pooled semen was diluted with TL-Hepes based extender supplemented with different concentrations of BSA (1 mg/mL, 3 mg/mL, and 5 mg/mL) or without BSA (control), at a final concentration of 100x10(6) spermatozoon/mL. Motility, plasma membrane functional integrity (HOST), and defected acrosome (PSA-FITC) were evaluated in the study. At post thaw, the highest sperm motility rates were obtained in the BSA5 group (P< 0.05). Functional integrity of sperm membrane was better preserved in the BSA3 and BSA5 groups compared to the other groups. The acrosomal integrity rates were higher in BSA5 group than in control group (P< 0.05). The study shows that bovine serum albumin supplemented TL-Hepes based extenders have beneficial effect on drone semen parameters at post-thaw. The results of the study demonstrated a notable advantage of using 5 mg/mL of BSA in TL-Hepes based extender.Publication The investigation by PCR and culture methods of foulbrood diseases in honey bees in south marmara region(Kafkas Üniversitesi, 2015-01-01) Borum, A. Ebru; Özakin, Cüneyt; Güneş, Ertan; Aydın, Levent; Ülgen, Mihriban; Çakmak, İbrahim; ÖZAKIN, CÜNEYT; Güneş, Ertan; AYDIN, LEVENT; ÜLGEN, MİHRİBAN; ÇAKMAK, İBRAHİM; Mustafakemalpaja Meslek Yüksekokulu; Mikrobiyoloji Ana Bilim Dalı; 0000-0002-9347-8307; 0000-0001-5428-3630; 0000-0002-6307-5179; AAG-8392-2021; AAG-8117-2021; AAH-2558-2021; AAK-4470-2021; HLG-4450-2023American Foulbrood and European Foulbrood diseases of honeybees were examined in 725 beehives from 23 apiaries located in the South Marmara Region of Turkey. We determined that 19 apiaries were infected and the suspected clinical signs of foulbrood diseases were investigated in 102 beehives by PCR and cultural method. Broods and combs from colonies with suspected clinical symptoms of foulbrood diseases were collected and cultured for bacteriological examination. All of the specimens contaminated with bacteriae and 37 species of bacteriae were isolated such as Stapylococcus epidermidis, Bacillus subtilis, Corynebacterium jeikum, Corynebacterium pseudotuberculosis, Bacillus spp. All of these bacteria are related to human, animal and environmental origins. In this study, Paenibacillus larvae by PCR amplifying the 973-bp region PL1 and PL2 with 1f, Melissococcus plutonius amplifying the 973-bp region EFB-F and EFB-R gene were amplified. American Foulbrood causative agent Paenibacillus larvae and European Foulbrood causative agent Melissococcus plutonius were not detected in any sample examined by PCR and cultural methods. On the other hand, Paenibacillus alvei that is a seconder agent to European Foulbrood was found in two samples by cultural methods. In conclusion, the results showed that P. larvae and M. plutonius are not present in South Marmara Region. In this study, human, animal and environment originated agents were isolated.Publication Testing the pesticide avoidance hypothesis by bees and flies in a mediterranean arthropod community(Oxford Univ Press Inc, 2015-04-01) Plascencia, M.; Carson, R.; Hranitz, J. M.; Barthell, J. F.; Gonzalez, V. H.; Çakmak, İbrahim; ÇAKMAK, İBRAHİM; Ziraat FakültesiPublication L-Carnitine supplemented extendersimprove post-thawing quality of honey bee drone (Apis mellifera) Spermatozoa [1](Kafkas Üniversitesi, 2021-07-01) Alçay, Selim; Çakmak, Selvinar; Çakmak, İbrahim; Aktar, Ahmet; Yılmaz, Melih; Üstüner, Burcu; Akkaşoğlu, Mustafa; Taşkıran, Şeyma; Ayaz, Elif; Sağırkaya, Hakan; Nur, Zekariya; ALÇAY, SELİM; Çakmak, Selvinar; ÇAKMAK, İBRAHİM; Aktar, Ahmet; Yılmaz, Melih; ÜSTÜNER, BURCU; Akkaşoğlu, Mustafa; Taşkıran, Şeyma; Ayaz, Elif; SAĞIRKAYA, HAKAN; NUR, ZEKARİYA; Arıcılığı Geliştirme Uygulama ve Araştırma Merkezi; Döreme ve Suni Tohumlama Ana Bilim Dalı; 0000-0002-8000-5770; 0000-0002-2975-2594; 0000-0002-1438-221X; CBC-7350-2022; ENZ-0848-2022; LMK-3522-2024; CBC-1744-2022; HSP-0413-2023; AAG-7238-2021; EMD-6376-2022; EAY-3244-2022; IBA-3364-2023; DPO-0081-2022; AAH-2635-2021The study aimed to evaluate the effects of L-carnitine on honey bee (Apis mellifera) drone spermatozoon at post-thaw. Semen samples obtained from sexually mature drones were pooled. Then, pooled semen was diluted with different concentrations of L-carnitine (2.5 mM/5 mM/10 mM) and without L-carnitine (control) supplemented extenders. Motility, plasma membrane functional integrity, acrosomal integrity and mitochondrial function were negatively affected by the cryopreservation process but DNA integrity was not affected. Malondialdehyde (MDA) concentration was used for analyzing the membrane lipid peroxidation status and a better result was obtained in the LC5 group compared with the control group at post-thaw. L-carnitine groups had a positive effect on sperm motility, plasma membrane integrity, and mitochondrial function compared to the control group (P<0.05). Acrosomal integrity was better preserved in the LC5 group compared to the control group. The study shows that LC supplemented extenders have beneficial effects on honey bee drone sperm parameters. The results of the present study demonstrated the beneficial effect of using a 5 mMol LC supplemented extender.Publication Antioxidant activity and phenolic composition of propolis from Marmara Begion, Turkey(Taylor & Francis Ltd, 2022-12-12) Can, Zehra; Kara, Yakup; Kolaylı, Sevgi; Çakmak, İbrahim; ÇAKMAK, İBRAHİM; Ziraat Fakültesi; 0000-0003-3121-5023; 0000-0002-8000-5770; AAK-5710-2021; AAW-8736-2020This study investigated various properties of raw propolis samples from Marmara region of Turkey. Total phenolic content (TPF), total flavonoid (TFC) values, condensed tannin content (CTC) and phenolic profiles of ethanolic extracts (70%) were analyzed. Antioxidant activities were tested using the Ferric (III) reduction/antioxidant capacity (FRAP) and 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging methods. Phenolic profiles of the samples were analyzed using high performance liquid chromatography (RP-HPLC-UV) method. TPC, TFC and CTC values in the samples ranged from 52.9 to 203.5 mg GAE/g, 13.6 to 43.9 mg QUE/g, and 2.0 and 2.9 mg CTE/g, respectively. Caffeic acid phenyl ester (CAPE), chrysin, pinocembrin, rutin, and t-cinnamic acid were detected as the common phenolic components in all samples. In conclusion, Marmara region propolis is a rich source of bioactive compounds, especially flavonoids with antioxidant properties.Publication Arı sperması (Apis mellifera anatoliaca) ve insülin etkileşiminin soya lesitini temelli kriyoprezervasyon sulandırıcılarında flow sitometri olarak incelenmesi(Bursa Uludağ Üniversitesi, 2024-03-27) Toker, Mehmed Berk; Aktar, Ahmet; Çakmak, Selvinar Seven; Çakmak, İbrahim; Akkaşoğlu, Mustafa; Alçay, Selim; TOKER, MEHMED BERK; Aktar, Ahmet; Çakmak, Selvinar Seven; ÇAKMAK, İBRAHİM; Akkaşoğlu, Mustafa; ALÇAY, SELİMGen havuzlarının istenen yönde gelişimine katkıda bulunan üreme kontrolü, spermanın dondurması ile alakalı biyoteknolojik yöntemleri önemli bir noktaya koymaktadır. Sperma dondurmaya yöntelik çalışmalar özellikle memelilerde yoğun olarak çalışılmış olmasına rağmen, arı sperması açısından başlangıç aşamasındadır. İnsülinin seminal plazmada bulunduğu ve çeşitli sperma parametreleri üzerine etkilerinin olduğu güncel çalışmalarla desteklenmiştir. Ayrıca, soya lesitini uzun süredir, özellikle yumurta sarısına alternatif, güvenilir bir kaynak olarak sperma dondurma sulandırıcılarında tercih edilen maddelerden biridir. Bu çalışma, soya lesitini (%2) temelli arı sperma dondurma sulandırıcılarına farklı dozlarda insülin (5, 10 ve 15 IU dozda) eklenmesi sonucunda elde edilecek sonuçların, flow sitometri veya mikroskopik incelemeler aracılığıyla önemli sperma parametreleri üzerindeki etkileri değerlendirmek amacıyla gerçekleştirişmiştir. Cinsel olgunluğa ulaşmış arılardan elde edilen örnekler bireysel farklılığı engellemek adına birleştirildi (pooling). Dondurma işlemi, üç doz insülin destekli ve bir insülin içermeyen kontrol grubu olacak şekilde düzenlendi ve yöntem planlandığı şekilde uygulandı. Dondurulup çözülen örnekler; motilite, plazma membran (hipo-osmotik şişme testi) ve DNA bütünlüğü (TUNEL testi) değerlendirmelerine, floresan ataçmanı olan bir faz kontrast mikroskobu kullanılarak gerçekleştirildi. Ayrıca, akrozomal bütünlük (PNA-FITC), nitrik oksit seviyeleri (DAF-2/DA) ve mitokondriyal membran potansiyeli (JC-1), bir flow sitometri cihazı aracılığıyla araştırıldı. Beklendiği gibi, tüm sperma parametreleri dondurma işleminin doğası gereği etkilendi, ancak insülin eklenmiş çalışma grupları, kontrol grubuna kıyasla pozitif yönde bir istatistiki farkı ortaya koyamadı. Bu sonuçlar ışığında, soya lesitini temelli arı sperması dondurma sulandırıcılarında kullanılan insülin takviyesinin tercih edilen dozlarda kullanılmasının, yardımcı biyoteknolojik yöntemler aracılığıyla daha yüksek verimli arı kolonileri elde edilmesi ve arı ürünleri konusunda ülke veriminin istenilen düzeye çıkartılması konusunda olumlu bir etkiye sahip olmadığı tespit edildi.Publication Effects of various cryoprotective agents on post-thaw drone semen quality(Kafkas Üniversitesi Veteriner Fakültesi Dergisi, 2015-01-01) Alçay, Selim; Üstüner, Burcu; Çakmak, İbrahim; Çakmak, Selvinar; Nur, Zekariya; ALÇAY, SELİM; ÜSTÜNER, BURCU; ÇAKMAK, İBRAHİM; Çakmak, Selvinar; NUR, ZEKARİYA; Veteriner Fakültesi; Tohumlama Ana Bilim Dalı; 0000-0002-1438-221X; AAH-2558-2021; AAG-7238-2021; AAH-2635-2021; JJQ-9411-2023; JLJ-9258-2023The aim of the present study was to evaluate the effect of different cryoprotectants on post-thaw semen motility and plasma membrane integrity of drone spermatozoa. Semen was obtained from mature drones (16 days or older) harvested from four colonies. Collected semen was diluted to a final concentration of 1/5 (semen/extender) in 0% cryoprotectant (control), 6% glycerol, 6% Ethylene Glycol, 6% 1,2 propanediol or 6% DMSO using a two-step dilution method. The equilibrated semen was frozen in 0.25-ml straws. The percentage of sperm motility and swollen tails (HOST) spermatozoa were evaluated following dilution with extender A (non-cryoprotectant), equilibration and post-thaw stages. In terms of post-thaw motility and plasma membrane integrity recovery we can rank the used cryoprotectant as DMSO, Ethylene Glycol, Glycerol and 1,2 Propanediol; respectively. In conclusion, post-thaw sperm motility and plasma membrane integrity of the present study was significantly better when sperm was frozen in DMSO with respect to control, glycerol, ethylene glycol, 1,2 propanediol (P<0.05).