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Toplam kayıt 81, listelenen: 1-20
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Bitki doku kültürleri
(Dicle Üniversitesi, 1990)Bu yapiti hazirlamamm amaci, ogrencilerinize, bitki doku külürleri üzerinde düinyada yapilan son calsmalar hakkinda birazcik olsun bilgi vermektir. Aslmda bu eserde anlatilan konular ne yazikki eskiye, ... -
Effect of starch induced bacterial growth and amylase production in bacillus subtilis
(Wiley-V C H Verlag Gmbh, 1995)The amylases produced by a Bacillus subtilis were purified from three different media which occurred nonstarch, starched and after eight hours shocked by starch media. Purified enzymes were compared each other Km, purification ... -
Phylogeny and biogeography of the family Cyprinidae in the Middle East inferred from cytochrome b DNA -: Evolutionary significance of this region
(Academic Press Inc Elsevier Science, 2002)The phylogenetic relationships of cyprinid species from the Middle East and neighboring biogeographical areas were investigated using cytochrome b sequence variation in order to test hypotheses that consider the Middle ... -
The antimicrobial activity of essential oils of Hypericum scabrum, Hypericum scabroides and Hypericum triquetrifolium
(Wiley, 2004)The essential oils of Hypericum scabrum, Hypericum scabroides and Hypericum triquetrifolium were studied for the first time for their antimicrobial activity against nine organisms. All the essential oils exhibited some ... -
Levels of transaminases, alkaline phosphatase, and protein in tissues of clarias gariepienus fingerlings exposed to sublethal concentrations of cadmium chloride
(Wiley, 2008)The freshwater fish, Clarias gariepienus fingerlings, were exposed to sublethal concentrations (1.7 and 3.4 mg/L) of cadmium chloride for 12 days. Aspartate aminotransferase (AAT), alanine aminotransferase (ALT), alkaline ... -
Water quality assessment and apportionment of pollution sources of Tigris River (Turkey) using multivariate statistical techniques-a case study
(Wiley, 2012)The Tigris is one of the most important transboundary rivers in western Asia and originates in the Toros mountains of the Eastern Anatolia region of Turkey. Multivariate statistical techniques, such as cluster analysis ... -
Iğdır yöresinde yaşayan kör farelerin (Nannospalax) (Rodentia: Spalacidae) karyolojik özellikleri
(Iğdır Üniversitesi Fen Bilimleri Enstitüsü, 2013)Bu çalışmada Iğdır yöresinde Tuzluca ilçesi, Gaziler-Kazkoparan Köyü'nden toplanan altı (2 ??, 4 ??) Körfare (Nannospalax) örneğinin karyolojik özellikleri araştırılmıştır. Örneklerin femurlarından alınan kemik ili- ğinden ... -
Biomarkers of environmental pollutants
(Hindawi Publishing Corporation, 2014)Thousands of pollutants enter daily into environment and exert various kinds of stress on organisms and ecosystems. Risk assessment of these pollutants to organisms and ecosystems is challenging because of diversities ... -
Marginal Likelihood Estimate Comparisons to Obtain Optimal Species Delimitations in Silene sect. Cryptoneurae (Caryophyllaceae)
(PUBLIC LIBRARY SCIENCE, 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA, 2014)Coalescent-based inference of phylogenetic relationships among species takes into account gene tree incongruence due to incomplete lineage sorting, but for such methods to make sense species have to be correctly delimited. ... -
Production, purification, and characterization of thermostable ?-amylase from thermophilic Geobacillus stearothermophilus
(Wiley-V C H Verlag Gmbh, 2014)The -amylase (-1-4-D-glucan glucanohydrolase; EC 3.2.1.1) secreted by Geobacillus stearotermophilus was purified and characterized. Maximum enzyme production was achieved after 24h cultivation at pH 7.0 and 55 degrees C. ... -
Atatürk Baraj Gölü'ndeki tatlısu balıklarının lipid içeriği ve yağ asidi profilinin karşılaştırılması
(Türk Biyokimya Derneği, 2016)Amaç: Bu çalışmanın amacı Atatürk Baraj Gölü'ndeki bazı tatlısu balıklarının lipit miktarlarını, yağ asidi profilini (Koroner kalp hastalığı, hipertansiyon, romatoid artrit, meme ve kolon kanseri, Alzheimer hastalığı, yangı ... -
The effect of cuscuta babylonica aucher (Cuscuta) parasitism on the phenolic contents of carthamus glaucus bieb.subsp. glaucus
(Iğdır Üniversitesi Fen Bilimleri Enstitüsü, 2016)Cuscuta species are holoparazit plants which obtained all need water and organic material from host plants. The host plants are generally synthesized a variety of phenolic compounds in response to attack of parasitic plants. ... -
New Silene L. records for the various squares of Turkey
(Ersin Yücel, 2016)In this study Silene taxa in the Southeastern Anatolia Region of Turkey's flora are not mentioned earlier identification of new distribution areas. Silene species collected in the 2012-2014 year with the determination of ... -
Investigation of the fatty acid contents of edible snails Helix lucorum, Eobania vermiculata and non-edible slug Limax flavus
(ACG Publications, 2017)The purpose of this work is to reveal the fatty acid composition of phospholipids, neutral and total lipid content of edible land snails Helix lucorum, Eobania vermiculata and non-edible land slug Limax flavus (Gastropoda: ... -
Yeşil alg cladophora glomerata mevcudiyetinde, kadmiuma maruz bırakılan nil tilapiası, oreochromis niloticus’un karaciğer dokularındaki histolojik değişiklikler
(Dicle Üniversitesi Veteriner Fakültesi, 2017)Nil tilapiası, Oreochromis niloticus (L.), Cladophora glomerata (L) Kutz (Chlorophyta)’nın bulunup bulunmadığı ortamlarda kadmiyumun (0,1 mg/l ve 1 mg/l) sublethal konsantrasyonlarına maruz bırakıldı. 15 ve 30 günlük ... -
Odunsu bitki türlerinde in-vitro aşılama-I (Anaç, Kalem, Aşı tekniği)
(Iğdır Üniversitesi Fen Bilimleri Enstitüsü, 2017)İn-vitro aşılama, aksenik kültür koşullarında minyatür aşı kalemlerinin aşılanmasını kapsayan ve diğer tekniklere nazaran en son vejetatif çoğaltım tekniklerinden biridir. Bu yöntem, sürgün ucu kültürü ve aşılamanın bazı ... -
Recombination provides evidence for ancient hybridisation in the Silene aegyptiaca (Caryophyllaceae) complex
(Springer Verlag, 2017)Recombination events among distinct alleles complicate phylogenetic estimation. Various in vivo and in vitro processes can bring distinct alleles into the same genome to then undergo recombination, which may subsequently ... -
Variations in the fatty acid compositions of the liver and gonad tissue of spiny eel (Mastacembelus mastacembelus) from Atatürk Dam Lake
(Turkish Biochemistry Society, 2017)Objective: The aim of the study was to investigate quantitative and qualitative fatty acid profiles of the gonad and liver tissue of female Mastacembelus mastacembelus (spiny eel). Methods: Total lipids were extracted with ... -
Hypericum retusum Aucher’in hücre süspansiyon kültürlerinin optimizasyonu ve fenolik bileşen içeriğinin incelenmesi
(Iğdır Üniversitesi Fen Bilimleri Enstitüsü, 2017)Hypericum retusum tıbbi bitki olarak potansiyel bir öneme sahiptir. Bu çalışmada, 6-benziladenin (BAP) ve kinetin (KİN)'in 2,4-diklorofenoksiasetik asit (2,4-D) ile kombinasyonlarının, farklı sukroz konsantrasyonlarının ... -
Topraktan izole edilen Streptomyces sp.’den ksilanaz üretimi ve karakterizasyonu
(Iğdır Üniversitesi Fen Bilimleri Enstitüsü, 2017)Bu çalışmada topraktan izole edilen Streptomyces sp.'nin izolasyonu, tanımlanması ve optimizasyonu gerçekleştirilmiştir. Streptomyces sp.'nin optimum şartları belirlenerek optimum 35 oC, pH 7.0 ve 52. saat olarak maksimum ...
