IUFS Journal of Biology最新文献_第6页

Flavonoids and some biological activities of Ailanthus excelsa leaves 臭椿叶类黄酮及其生物活性研究

IUFS Journal of Biology Pub Date : 2010-11-25 DOI: 10.18478/IUFSJB.48603

A. Said, U. Hawas, S. El-Shenawy, S. M. Nofal, K. Rashed

引用次数: 13

Morphological Characteristics and Growth Abilities of Free Living Amoeba Isolated From Domestic Tap Water Samples in İstanbul İstanbul生活自来水中分离的自由生活变形虫的形态特征和生长能力

IUFS Journal of Biology Pub Date : 2010-11-24 DOI: 10.18478/IUFSJB.08200

Z. Zeybek, Miray Üstüntürk, Ali Rıza Binay

{"title":"Morphological Characteristics and Growth Abilities of Free Living Amoeba Isolated From Domestic Tap Water Samples in İstanbul","authors":"Z. Zeybek, Miray Üstüntürk, Ali Rıza Binay","doi":"10.18478/IUFSJB.08200","DOIUrl":"https://doi.org/10.18478/IUFSJB.08200","url":null,"abstract":"Free living amoeba (FLA) have been isolated from water and soil samples throughout the world. Among the many genera of FLA , members of only four genera are responsible for human disease: Acanthamoeba spp., Balamuthia mandrillaris , Naegleria fowleri and Sappinia diploidea . Naegleria spp. and Acanthamoeba spp. can be cultivated on nonnutrient agar (NNA) in the presence of living or dead bacteria. Balamuthia , however, will not grow with bacteria as a food source but they can feed upon smaller soil amoeba. In the current study we try to find out the morphological appearance (Trichrome staining) and growth characteristics of free living amoeba in different liquid culture media previously isolated from domestic tap water samples (10 isolates) and a strain of Acanthamoeba castellanii (A. castellanii) isolated from a keratitis case. Although A.castellanii strain grew on proteose peptone-yeast extract-glucose and proteose peptone-yeast (with or without antibiotics), our isolates from domestic tap water samples did not grow on any tested liquid culture media. It is suggested that investigating both the morphological characteristics and the growth characteristics on liquid culture media are necessary for the identification of free living amoeba.","PeriodicalId":14521,"journal":{"name":"IUFS Journal of Biology","volume":"31 22","pages":"17-23"},"PeriodicalIF":0.0,"publicationDate":"2010-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91404520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

The Anti-Genotoxic Effect of Taurine on Aluminum Sulphate-Induced DNA Damage in Human Peripheral Lymphocytes 牛磺酸对硫酸铝诱导的人外周血淋巴细胞DNA损伤的抗基因毒性作用

IUFS Journal of Biology Pub Date : 2010-11-24 DOI: 10.18478/IUFSJB.01865

H. Turkez, F. Geyikoğlu

{"title":"The Anti-Genotoxic Effect of Taurine on Aluminum Sulphate-Induced DNA Damage in Human Peripheral Lymphocytes","authors":"H. Turkez, F. Geyikoğlu","doi":"10.18478/IUFSJB.01865","DOIUrl":"https://doi.org/10.18478/IUFSJB.01865","url":null,"abstract":"Aluminum sulphate Al 2 (SO 4 ) 3 is commonly used as a coagulant in the purification of drinking water in many regions of the world. Aluminum (Al) is also involved in several pharmaceutical and cosmetic products. However, Al is suspected to cause serious disorders such as Alzheimer's by oxidative DNA damage. On the other hand, taurine (TA) is an amino acid found in mammalian tissues and it has been suggested to play a role in the defense against cellular damage. The objective of this study was to determine whether the supplemetation of a natural antioxidant, TA conferred the protection against Al exposure in human blood cultures. For this aim, sister chromatid exchange (SCE) and micronucleus (MN) rates were assessed. Present results showed that 10 μg/ml of Al 2 (SO 4 ) 3 has no effect on SCE and MN rates, but 20 μg/ml of this compound increased the rates of SCEs and MN. Besides, the TA at all studied concentrations (25, 50 and 100 μg/ml) did not alter the mean SCE and MN values as compared to controls. Moreover, the negative cytogenetic alterations induced by Al could be significantly ( P<0.05 ) reduced by the application of TA. This study reveals for the first time the ameliorative role of TA against Al-induced DNA damage in vitro .","PeriodicalId":14521,"journal":{"name":"IUFS Journal of Biology","volume":"18 1","pages":"25-32"},"PeriodicalIF":0.0,"publicationDate":"2010-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78725330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Cytohistological Studies During Cotton Somatic Embryogenesis With Brassinosteroid Application 油菜素内酯对棉花体细胞胚胎发生的细胞组织学研究

IUFS Journal of Biology Pub Date : 2010-11-24 DOI: 10.18478/IUFSJB.01577

Y. Aydin, T. Talas-Oğraş, A. Altinkut, I. Ismailoğlu, E. Arican, N. Gozukirmizi

引用次数: 6

ENVIRONMENTAL BIOLOGY AND PATHOPHYSIOLOGY OF CADMIUM 镉的环境生物学和病理生理学

IUFS Journal of Biology Pub Date : 2010-11-17 DOI: 10.18478/IUFSJB.63020

Y. Çotuk, M. Belivermiş, Ö. Kılıç

引用次数: 11

EFFECT OF OVERIECTOMY AND OF ESTROGEN ADMINISTRATION UPON DUODENAL ULCERATION INDUCED BY CYSTEAMINE 半胱胺致十二指肠溃疡的十二指肠切除术及雌激素治疗效果

IUFS Journal of Biology Pub Date : 2010-11-17 DOI: 10.18478/IUFSJB.75270

A. Kv, M. KuraneM, M. PillaiM.

{"title":"EFFECT OF OVERIECTOMY AND OF ESTROGEN ADMINISTRATION UPON DUODENAL ULCERATION INDUCED BY CYSTEAMINE","authors":"A. Kv, M. KuraneM, M. PillaiM.","doi":"10.18478/IUFSJB.75270","DOIUrl":"https://doi.org/10.18478/IUFSJB.75270","url":null,"abstract":"Duodenal ulcers were induced in ovariectomized, intact and old mice using cysteamine hydrochloride. Under these experimental conditions ovariectomy and old age strikingly increased sensitivity to ulcer induction while estrogen administration showed a decrease in sensitivity to ulcer induction. Nevertheless, the administration of estrogen in old mice showed no effects in either intact or overiectomized mice. This change in ulcer sensitivity reflected from histological, histochemical and biochemical studies. The histological study was performed by using haematoxylin-eosin and haematoxyline staining technique. The histochemistry of the duodenal region was studied by using periodic acid Schiff reaction (PAS) for glycoproteins. The biochemical study was performed to study various constituents of glycoproteins like hexose, fucose, sialic acid and the protein. The result showed that ulcer severity was more in overiectomized cysteamine treated mice and old mice treated with cysteamine. The histological studies showed that ovariectomy decreased or did not show any change in the ulcer sensitivity considering cryptus Lieburkuhn and Brunner's glands. The same result reflected by differential intensity in the staining property of the Brunner's gland. The biochemical study showed that the glycoprotein contents were reduced many times in overiectomized cysteamine treated mice and their reversal in estrogen administered ovariectomized cysteamine injected mice. These findings prove that estrogen protects the duodenal ulcer from cysteamine administration.","PeriodicalId":14521,"journal":{"name":"IUFS Journal of Biology","volume":"35 1","pages":"7-16"},"PeriodicalIF":0.0,"publicationDate":"2010-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80005554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Role of salt stress on seed germination and growth of jojoba plant Simmondsia chinensis (Link) Schneider 盐胁迫对荷荷巴种子萌发和生长的影响

IUFS Journal of Biology Pub Date : 2010-11-02 DOI: 10.18478/IUFSJB.01476

A. Berrichi, Reda Tazi, Ahmed Belliro, N. Kouddane, A. Bouali

{"title":"Role of salt stress on seed germination and growth of jojoba plant Simmondsia chinensis (Link) Schneider","authors":"A. Berrichi, Reda Tazi, Ahmed Belliro, N. Kouddane, A. Bouali","doi":"10.18478/IUFSJB.01476","DOIUrl":"https://doi.org/10.18478/IUFSJB.01476","url":null,"abstract":"An extensive problem in agriculture is the accumulation of salts from irrigation water. Evaporation and transpiration remove pure water from the soil. This water loss concentrates solutes in the soil. When irrigation water contains a high concentration of solutes, salts can reach rapidly injurious levels vis-a-vis salt-sensitive species. One factor limiting jojoba plant ( Simmondsia chinensis (Link) Schneider) domestication in the oriental areas of Morocco is the damage caused by salt effect since irrigation enhances salinity in plantation soils. The objectives of this study were to define the effect of various NaCl concentration levels on plant growth and seed germination. The tolerance to salinity of jojoba seed and seedlings was assessed at NaCl concentrations of 0, 1, 2, 3, 5, and 7 g l −1 and the experiment was undertaken in the laboratory under greenhouse conditions. Results obtained show that more than half of the seeds germinated in the presence of 7g/l of NaCl; whereas 5g/l of NaCl inhibited completely the emergence of plumules. Concerning jojoba seedlings, 3 g/l of NaCl marked the start of negative affect on the growth.","PeriodicalId":14521,"journal":{"name":"IUFS Journal of Biology","volume":"29 1","pages":"95-102"},"PeriodicalIF":0.0,"publicationDate":"2010-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86996290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Isolation and identification of Two new cyclic amino acids from the seeds of Zizyphus spina-christi L. (Willd) by means of 1H-NMR-13C-NMR-HSQC-HMBC and GC-MS 采用1H-NMR-13C-NMR-HSQC-HMBC和GC-MS分离鉴定两种新的环氨基酸

IUFS Journal of Biology Pub Date : 2010-11-02 DOI: 10.18478/IUFSJB.70605

A. Said, A. Huefner, E. Table, G. Fawzy

引用次数: 2

LENGTH-WEIGHT RELATIONSHIPS OF FISHES IN SHALLOW WATERS OF ERDEK BAY (SEA OF MARMARA, TURKEY) 土耳其马尔马拉海erdek湾浅水鱼类的长重关系

IUFS Journal of Biology Pub Date : 2010-11-02 DOI: 10.18478/IUFSJB.34222

Çetin Keskin, Ö. Gaygusuz

引用次数: 39

First record of Amphorellopsis tetragona ( Protozoa: Ciliophora: Tintinnina)

IUFS Journal of Biology Pub Date : 2010-11-02 DOI: 10.18478/IUFSJB.72728

Benin Toklu Alıçlı, N. Balkıs, A. Toklu, Ahmet Höbek

引用次数: 2