International Journal of Science Letters最新文献_第4页

Isolation and molecular phylogeny of RFT1 gene from upland rice leaves cultivar 旱稻叶片品种RFT1基因的分离及分子系统发育

International Journal of Science Letters Pub Date : 2020-08-26 DOI: 10.38058/ijsl.701095

Sulaiman Mohammed

{"title":"Isolation and molecular phylogeny of RFT1 gene from upland rice leaves cultivar","authors":"Sulaiman Mohammed","doi":"10.38058/ijsl.701095","DOIUrl":"https://doi.org/10.38058/ijsl.701095","url":null,"abstract":"Rice is a modern short-day plant but equally flower during non-inductive long-day condition due to the possession of second florigen, Rice Flowering Locus T1 (RFT1) . RFT1 is an ortholog of Arabidopsis FT gene which triggers flowering induction under long-day (LD) condition. The gene isolation from Malaysian upland rice cv. Wai that induces flowering were reported. Nucleic acids isolation and amplification of the RFT1 were observed, then phylogenetic relationship among other 5 indica and 1 japonica rice were inferred by comparing the gene amino acids sequence data sets using multiple sequence alignment databases. The amplicon quality result indicated that the gene was fully amplified at above 0.5kb, whereas the sequence alignment revealed that the RFT1 gene was partially amplified based on the gaps identified. Among the 6 indica cultivars sequence aligned, they were almost all conserved except on only 12 amino acids. While the cladogram tree result classified the cultivars into three major groups and include Wai under clade that contains both indica and japonica cultivars. This finding concluded that the cultivars are of high evolutionary relationship and well established their molecular relationship. The cultivars relationship provides necessary information for better understanding of molecular evolution and designing scientific breeding system for generation of new rice cultivar.","PeriodicalId":287513,"journal":{"name":"International Journal of Science Letters","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116237064","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: 0

Ferro-chelatase enzyme activity of blue green algae from Yeşilırmak 来自Yeşilırmak的蓝绿藻铁螯合酶活性

International Journal of Science Letters Pub Date : 2020-08-26 DOI: 10.38058/ijsl.768264

V. Konar, Ö. İdil, E. Çelikoğlu, Umut Çelikoğlu

引用次数: 0

Coatomic refinable modules 共原子可细化模块

International Journal of Science Letters Pub Date : 2020-08-26 DOI: 10.38058/ijsl.774962

B. Türkmen, E. Türkmen

引用次数: 0

An easy and reliable method for establishment and maintenance of tissue cultures of Nicotiana tabacum cv TAPM 26 一种简便可靠的建立和维持烟叶组织培养的方法

International Journal of Science Letters Pub Date : 2020-08-26 DOI: 10.38058/ijsl.764947

Y. Kaya, F. Huyop

引用次数: 5

The effects of concentration based on the absorbance form the ultraviolet–visible (UV-VIS) spectroscopy analysis 紫外-可见光谱法分析了浓度对吸光度的影响

International Journal of Science Letters Pub Date : 2020-03-01 DOI: 10.38058/IJSL.633876

Jamal Moammar Aldabib, M. Edbeib

引用次数: 2

Sperm Storage and Artificial Insemination in Honey Bees 蜜蜂的精子储存和人工授精

International Journal of Science Letters Pub Date : 2020-03-01 DOI: 10.38058/IJSL.661629

A. Özkök, Murat E. Selçuk

{"title":"Sperm Storage and Artificial Insemination in Honey Bees","authors":"A. Özkök, Murat E. Selçuk","doi":"10.38058/IJSL.661629","DOIUrl":"https://doi.org/10.38058/IJSL.661629","url":null,"abstract":"To obtain the expected yield from a honeybee colony, queen bee is required to have high egg capacity, the colony is also expected to be resistant to diseases, to have a low tendency for swarming, to be resistant to looting, and to be able to adapt to the climatic conditions of the region. In this context, it is important to protect the pure bee races and to improve them by conducting breeding research. To maintain the high yield aspect of honeybee colony, the queen bee needs to be replaced at most every 2 years. Queen bee becomes adult in as short as 16 days after hatching, and mating is realized in the air outside the colony, which makes it difficult to preserve the genetic line of the queen bee. At this point, artificial insemination and protection of gene resources become important. Honey bee (Apis mellifera L.) sperm can be stored for short and long periods. However, due to the delicate structure and biology of honey bee sperm, the high success rate in mammals could not be achieved in storing bee sperm. Due to the genetic damage exposed during the freezing of honey bee sperm, long-term storage difficulties are experienced. In addition, the concentration, motility and viability of spermatozoa decrease due to the short-term storage and storage conditions. In the breeding studies in the same region, after a period of time, gene resources decrease, and accordingly, the risk of inbreeding occurs. Instead of replacing the bee colonies that are at risk of inbreeding, a new different genome addition to the colony whose current yield characteristics are known can be made through the sperm storage of other colonies. Thanks to the long-term storage of sperm, long-period genetic studies can be carried out as in mammals, which is important for improving yield characteristics genetically. In addition, the long-term storage of honeybee sperm is a hope for the protection of regional races that are in danger of extinction due to unconsciousness and improper breeding policies.","PeriodicalId":287513,"journal":{"name":"International Journal of Science Letters","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125694722","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: 0

Agriculture History and Policy 农业历史与政策

International Journal of Science Letters Pub Date : 2020-03-01 DOI: 10.38058/IJSL.685412

Abdulgani Devlet

{"title":"Agriculture History and Policy","authors":"Abdulgani Devlet","doi":"10.38058/IJSL.685412","DOIUrl":"https://doi.org/10.38058/IJSL.685412","url":null,"abstract":"The ancient Fertile Crescent in particular, is commonly comprehended as the origin of agriculture. The location of Western Asia covers the area of Mesopotamia and the Levant, and is limited by Syrian Desert to the south and the Anatolian Plateau to the north. First of all, a good diagnosis is needed to treat the disease, it is necessary to make a good diagnosis and definition for our sectors such as agriculture which connects our past, current and future life. In the agricultural sector, like other sectors, if we ask for a timely diagnosis and treatment of issues; certainly, we don't have to demand more because of neglect. The basis of the agricultural sector also is a science. World population has been growing and natural resources such as land and water is already under stress. To make a nation healthy and to meet food demand along with nutrition security, agriculture would continue remain as the top most priority sector for any country. Agriculture provides food, fibre and raw materials to industry. It contributes significantly to Gross Domestic Product (GDP). Agriculture provides cleaner, better environment for people to lead healthy life on earth. Moreover, it provides employment to large section of the people. If a nation has to be strong, then it has to be self-reliant coupled with strong agricultural economy that supports ecological and nutritional security. The history of agriculture has showed an important value in human development. More than half of all human around the World once efforted in farming, and even today, few—if any—humans could survive without it.This paper depicts the agricultural history and policy reforms and structural changes in World from past to the current times.","PeriodicalId":287513,"journal":{"name":"International Journal of Science Letters","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116871595","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: 0

The effect of ATP-binding cassette (ABC) transporters in human cancers atp结合盒(ABC)转运体在人类癌症中的作用

International Journal of Science Letters Pub Date : 2019-08-19 DOI: 10.38058/IJSL.594000

Seda Mesci, S. Marakli, Burak Yazgan, Tuba Yıldırım

引用次数: 4

Physicochemical properties of both drinking and domestic waters in Çorum Çorum饮用水和生活用水的物理化学性质

International Journal of Science Letters Pub Date : 2019-08-19 DOI: 10.38058/IJSL.594005

Emre Bezgin, Cem Ozan Eryücel, Z. Tuncel

{"title":"Physicochemical properties of both drinking and domestic waters in Çorum","authors":"Emre Bezgin, Cem Ozan Eryücel, Z. Tuncel","doi":"10.38058/IJSL.594005","DOIUrl":"https://doi.org/10.38058/IJSL.594005","url":null,"abstract":"Water is the most basic need of life since the existence of living things. Physicochemical monitoring of water quality is important for public health.In this study, we aimed to research the quality of drinking and domestic waters in dams, sources, wells and water tanks,located in Corum in terms of several physicochemical parameters. In winter, spring and summer seasons we collected a total of 2894 water samples from 3 dams, 10 well-sources, and water tanks on a monthly basis; water tanks in the 80 different locations in the Center six days a week,and lastly domestic waters five days a week in 250 ml sterile water sampling bottles.We used the nephelometric method for determining the amount of turbidity, the electrometric method for analyzing conductivity, pH and, dissolved oxygen the photometric method for measuring free chlorine, the spectrophotometric method for determining the amount of sulphate, iron, nitrite, ammonia and, manganese and lastly TS 266 volumetric titration for analyzing total alkalinity, organic matter, magnesium, calcium and total hardness. We monitored water height, filling rate, turbidity, pH and free chlorine control in each drinking water storage tanks in Corum with the Scada System and free chlorine with both the Scada System and manually. Detected in the range of Ammonium and Iron (mg/L): <0.5; Nitrite (mg/L): <0.02; Manganese (mg/L): <0.01; Turbidity (NTU): between 0.1 and 0.4; Conductivity (μS / cm): between 400 and 600; pH: 7.5 to 8.0; Sulfate (mg/L): 10 to 45; Total Alkalinity (mg/L): between 180 and 250; Organic matter (mg/L): 1 to 3. In accordance with Turkish Regulation on Water Intended for Human Consumption, the several physicochemical parameters in drinking and domestic waters in Corum are in between stated values.","PeriodicalId":287513,"journal":{"name":"International Journal of Science Letters","volume":"371 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134144632","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: 3

Retrotransposon Analyses in Cucurbitaceae family 葫芦科反转录转座子分析

International Journal of Science Letters Pub Date : 2019-08-19 DOI: 10.38058/IJSL.592537

S. Marakli

引用次数: 2