African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12496

Table of Content: 14 August 2013; 12(33)

August 2013

Simple sequence repeat (SSR) markers for assessing genetic diversity among the parental lines of hybrid rice (Oryza sativa L.)

  The present scientific study was carried out at Tamil Nadu Rice Research Institute, Aduthurai with the objective of studying the genetic divergence among 51 restorer and five maintainer lines in terms of grain quality and fertility restorer genes (Rf3, Rf4 andRf7) using 55 primers of simple sequence repeat (SSR) markers. Among them, 37 SSR markers were found to be polymorphic and the number of...

Author(s):   Mahalingam. A, R. Saraswathi and J. Ramalingam        

August 2013

An evaluation of some mutant cotton (Gossypium hirsutum L.) varieties from Azerbaijan in Southeast Anatolian region of Turkey

  The aim of this study was to determine seed cotton yield, yield components and fiber technological properties of four mutant cotton varieties from Azerbaijan (Agdas-3, Agdas-6, Agdas-7 and Agdas-17) and three local standard varieties (Maras-92, Sayar-314 and Stoneville-453) belonging to Gossypium hirsutum L. The study was carried out at the experimental field of Koruklu Agricultural Research Station...

Author(s):   Lale EFE, Fatih KILLI and A. Sefer MUSTAFAYEV          

August 2013

Quality characteristics of rice inoculated with Inonotus obliquus mycelia and incubated under different cultivating conditions

This study was performed to investigate the quality characteristics of Inonotus obliquus mycelia rice incubated with I. obliquus (KCTC 256152). Different volumes of mycelial culture of I. obliquus were used for production of I. obliquus mycelia rice. Twenty percent of the mycelial culture was added to rice and designated as IOR-20, 30% as IOR-30 and 40% as IOR-40. Using...

Author(s):   Jin-Hwan Son⊃, Il-Doo Kim⊃, Mi-Ok Kim⊃, Eli Afetsi Gaveh⊃ and Dong-Hyun Shin⊃        

August 2013

Metabolic response of Cyclotella meneghiniana Kutzing to toxicity of the antifouling agent Irgarol 1051

  Soluble toxic compounds that are leached out from antifouling paints cause unpalatable taste and disagreeable odor. This in turn will directly or indirectly affect the metabolic activities of the aquatic biota. In this work, reliable studies about the expected effects of these toxins on living organisms were conducted. Microorganisms especially algae were used as powerful tools to assess in...

Author(s):   Hanan A.Said, Wafaa M. Abdel-Aziz and Hala M.Taha      

August 2013

Foliar application of systemic acquired resistance (SAR) inducers for controlling grape anthracnose caused by Sphaceloma ampelinum de Bary in Thailand

  Chitosan and benzo-(1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH) are active-elicitors that induce protection in grapevine against several diseases. In this study, treatment of grapevine with chitosan and BTH provided protection to anthracnose, caused by Sphaceloma ampelinum. Chitosan and BTH treatment also increased chitinase, ß-1,3-glucanase and peroxidase activities levels in leaves...

Author(s):   Inchaya Prakongkha, Mathukorn Sompong, Sopone Wongkaew, Dusit Athinuwat and Natthiya Buensanteai,      

August 2013

Population structure of Gibberella xylarioides Heim and Saccas in Ethiopian forest coffee (Coffea arabica L.) systems

  Coffee wilt caused by Gibberella xylarioides (Fusarium xylarioides) is a troublesome soil borne disease of Arabica coffee (Coffea arabica L.) in Ethiopia. It has been known to be prevalent and severe in plantation, garden and semi-forest coffee production systems in that order of importance. A number of recent reports have also indicated that the disease is equally damaging coffee trees...

Author(s):   Sihen Getachew, Girma Adugna, Fikre Lemessa and H. Hindorf      

August 2013

Efficient in vitro regeneration protocol of Centella asiatica (L.) Urban: An endemic and underutilized nutraceutical herb

  The present communication reports an efficient in vitro plantlet regeneration protocol for endemic umbellifer Centella asiatica (L.) urban via callus mediated organogenesis from leaf and stem explants. The plant is pharmacologically very important and its consumption as underutilized green leafy vegetable affluent in micronutrients is communally conscientious for its threatened status....

Author(s):   Kanchan Joshi, Preeti Chaturvedi and Shubhpriya        

August 2013

Varietal resistance of rice to blast fungus Magnaporthe oryzae at two sites in southwestern Nigeria

  This study was conducted to elucidate the performance of varieties with known resistance genes of rice at two sites and assess the efficiency of the two sites for screening rice genotypes for blast resistance. Thirty-four (34) varieties plus one local check were screened for resistance to rice blast disease caused by a fungus (Magnaporthe oryzae) at Ibadan and Ikenne under natural infection for two...

Author(s):   O. O. Idowu, A. O. Salami, S. A. Ajayi, R.O.Akinwale and Y. Sere        

August 2013

Genetic variation and heterotic effects for seed oil, seed protein and yield attributing traits in upland cotton (Gossypium hirsutum L.)

  An investigation was carried out to assess the expression of per se performance and heterotic effect for seed oil, seed protein besides various yield attributing characters studied from 28 hybrids involving four adapted varieties as lines and the seven testers in line x tester analysis. A wide range of variability was observed for seed oil content in the parents and their 28 hybrids. The seed...

Author(s):   Kaliyaperumal Ashokkumar and Rajasekaran Ravikesavan        

August 2013

Assessment of Bollgard II cotton pollen mediated transgenes flow to conventional cotton in the farming conditions of Burkina Faso

  Cotton is the main cash crop in Burkina Faso. However, production is highly affected by bollworms and leafworms in the last years due to the spread out of the resistance of bollworms to most used pesticides. This has led to experiment on Bt cotton from 2003 to 2007. The inevitable coexistence between transgenic and conventional cottons requires the assessment of transgene outflow. The study was carried out...

Author(s):   BOURGOU Larbouga, SANFO Denys, TIEMTORE C. Bernard, TRAORE Oula, SANOU Jacob and TRAORE Karim      

August 2013

Impact of salicylic acid on antioxidants, biomass and osmotic adjustments in Vigna unguiculata L. walp. during water deficit stress

  Ameliorative impact of salicylic acid (SA) on Vigna unguiculata L. (cowpea) cultivar IT93k-452-1 during water deficit stress was investigated. Plants were subjected to water deficit stress (WD) for 7 days at either the vegetative stage (DVS) or the reproductive stage (DRS) and the leaf water potentials (ψw) of -1.9 MPa and -2.01 MPa were obtained, respectively. Stress caused reductions in...

Author(s):   Umebese, C. E. and Bankole, A. E.        

August 2013

Intra-specific variations in Silene: Morphometry and micromorphometry analyses

  The Silene species are annual, biennial or perennial herbs mainly distributed in the northern hemisphere, Europe, Asia and northern Africa. The section, Inflatae Boiss., is the smallest section of the genus containing three species and four subspecies in Iran, out of which one subspecies is endemic with very restricted distribution in the western and northern regions. Studies on...

Author(s):   Raheleh Tabaripour, Fahimeh Koohdar, Masoud Sheidai and Abbas Gholipour        

August 2013

Assessment of the fermentative process from different cocoa cultivars produced in Southern Bahia, Brazil

  The “witch broom disease” caused by the fungus Moniliophtora perniciosa drastically reduced cocoa production in Southern Bahia (Brazil), and cloning techniques has been used with trees that showed resistance to the fungus. On the other hand, the genotype, agronomic management, soil and weather characteristics, as well as post-harvest technology directly affected...

Author(s):   Jaqueline Fontes Moreau Cruz, Paula Bacelar Leite, Sergio Eduardo Soares and Eliete da Silva Bispo        

August 2013

Characterization of lactic acid bacteria isolated from indigenous dahi samples for potential source of starter culture

  Diversity and density of lactic acid bacteria from indigenous dahi were studied by thedetermination of morphological, cultural, physiological and biochemical characteristics. A total of 143 isolates were identified phenotypically and divided into three genera: Lactobacillus, Lactococcus and Streptococcus. The microorganisms isolated were Lactobacillus...

Author(s):   Shabana Maqsood, Fariha Hasan and Tariq Masud        

August 2013

Effect of propolis consumption on hepatotoxicity and brain damage in male rats exposed to chlorpyrifos

  This study was undertaken to determine the protective effect of propolis against the hepatotoxicity and brain damage of chlorpyrifos (CPF) in male rats. Animals were assigned to one of four groups. The first group was used as control.  Groups 2, 3 and 4 were treated with 6.8 mg CPF /kg BW (1/20 LD50); 50 mg propolis/kg BW; CPF (6.8 mg CPF/kg BW) plus propolis (50 mg propolis/kg BW). Rats were orally...

Author(s):   Newairy, A. A.and Abdou, H. M.        

August 2013

Sugar production from durian (Durio zibethinus Murray) peel by acid hydrolysis

  Agricultural waste is mainly composed of cellulose and hemicelluloses which can be converted to sugars. The inexpensive sugar from durian peel was hydrolyzed with H2SO4, HCl and H3PO4 at a concentration of 0.5 to 2.0% (v/v). The hydrolysis times ranging from 15 to 60 min were investigated when the mixture was autoclaved at 121°C. The result shows that acid hydrolysis efficiency (AHE) with...

Author(s):   Matura  Unhasirikul , Woatthichai  Narkrugsa and Nuanphan Naranong