African Journal of

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12485

Table of Content: 5 October, 2016; 15(40)

October 2016

In vitro regeneration of disease free enset [Ensete ventricosum (Welw) Cheesman] planting materials from bacterial wilt diseased plants using shoot tip culture

Enset is an important food crop produced in Ethiopia with great role in food security. The demand of the crop is increasing throughout the country. However, the production as a whole is decreasing due to devastation by enset bacterial wilt. The studies were conducted to develop the procedure for obtaining multiple disease free plantlets from infected enset plants. Shoot tip explants from infected suckers of three clones...

Author(s): Genene Gezahegn and Firew Mekbib

October 2016

Screening of spontaneous castor bean accesses for genetic improvement programs

The objective of this work was to identify, through the use of multivariate analysis, the spontaneous accesses of castor bean that show promising characteristics for inclusion in genetic improvement programs of this culture in Brazil. The study was conducted at the Paulista State University, Jaboticabal Campus. The accesses of castor bean seeds obtained were identified as ACS-001-CRSP, ACS-001-JASP, ACS-001-MASP,...

Author(s): Rener Luciano de Souza Ferraz, Jane Lima Batista, Marcelo de Andrade Barbosa, Ivomberg Dourado Magalhães, Alberto Soares de Melo and Antonio Sergio Ferraudo

October 2016

Assessment of the genetic diversity of Kenyan coconut germplasm using simple sequence repeat (SSR) markers

Genetic diversity and relationship among 48 coconut individuals (Cocos nucifera L.) collections from the Coastal lowland of Kenya were analyzed using 15 simple sequence repeat (SSR) primer pairs. Diversity parameters were calculated using Popgene Software version 1.31. The gene diversity values ranged from 0.0408 (CAC68) to 0.4861 (CAC23) with a mean value of 0.2839. The polymorphic information content (PIC) values...

Author(s): Maurice E. Oyoo, Najya Muhammed, Kimani N. Cyrus and Simon M. Githiri

October 2016

Evaluation of various pesticides-degrading pure bacterial cultures isolated from pesticide-contaminated soils in Ecuador

Due to the intensive use of pesticides within the greenhouse-rose production, remediation of polluted soils has become a hot topic for researchers in recent decades. Several bacterial strains having the ability to utilize various pesticides as a sole source of carbon and energy were isolated from pesticide-contaminated soils of Urcuquí, Ecuador. According to phenotypical, physiological, and biochemical...

Author(s): Pérez Mónica, Rueda O. Darwin, Bangeppagari Manjunatha, Johana J. Zúñiga, Ríos Diego, Rueda B. Bryan, Sikandar I. Mulla and Naga R. Maddela

October 2016

Use of response surface methodology to optimize the drying conditions of a bioactive ingredient derived from the African opaque sorghum beer

The present work aims to optimize the heat drying conditions of a bioactive feed ingredient derived from the African opaque sorghum beer. The bioactive ingredient was dried at various temperatures 35 to 50°C and times 5 to 24 h. The effects of the drying conditions on the dry matter, water activity, pH, titratable acidity, bacteriocin, ethanol, lactic acid, yeasts, lactic acid bacteria contents and antimicrobial...

Author(s): I. B. Chabi, A. P. P. Kayodé, B. P. Agbobatinkpo, A. Adénilé, O. A. Mamadou, G. Vieira-Dalodé, L. Baba-Moussa and J. T. C. Codjia

October 2016

Enzymatic regulation of organic acid metabolism in an alkali-tolerant halophyte Chloris virgata during response to salt and alkali stresses

Chloris virgata, an alkali-tolerant halophyte, was chosen as the test material for our research. The seedlings of C. virgata were treated with varying salt and alkali stress. First, the composition and content of organic acids in shoots were analyzed and the results indicated that there was not only a significant increase in total organic acids, but there were also obvious changes in different components of organic...

Author(s): Huan Wang, Bing Bai, Ziyu Bai, Lijun Shi, Jinlin Ye, Siwen Fan, Huahua Xu and Decheng Shi

October 2016

Comparison of four nonlinear growth models for effective exploration of growth characteristics of turbot Scophthalmus maximus fish strain

This study was conducted to compare the effectiveness for non-linear growth models designated as Chapman-Richards, Gompertz, Logistic and von Bertalanffy for selection of fast-growing fish strain of turbot Scophthalmus maximus. These models were compared using the goodness of fit (the coefficient of determination (R2) and the mean square error (MSE)) and the Akaike information criterion (AIC) and the growth...

Author(s): Xin’an Wang,, and Aijun Ma,,

October 2016

Genetic determinants of antifungal resistance in Candida species

In the previous decades, it has been an increase in cases of resistance to antifungal agents used in the prophylaxis and treatment of infections caused by Candida species. The emergence of resistance to drug classes, it is usually explained by genome alterations ranging from point mutations to gain or loss of whole chromosomes. Therefore, identify and understand into the molecular mechanisms that underlie resistance of...

Author(s): Danielly Beraldo dos Santos Silva, Alexéia Barufatti Grisolia and Kelly Mari Pires de Oliveira

October 2016

Phylogenetic relationships of the genus Quercus L. (Fageceae) from three different sections

In this study, the genetic diversity of 6 oak species known as Quercus coccifera L., Q. robur L., Q. infectoria Oliver, Q. cerris L., Q. ithaburensis subsp. macrolepsis (Kotschy) Hedge and Yalt. and Q. trojana P.B. Webb  in 18 populations was screened using the randomly amplified polymorphic DNA method (RAPD).  10 RAPD primers giving the best results produced 262 total loci. The highest and lowest band sizes...

Author(s): Yılmaz Aykut

October 2016

Antioxidant assessment on promethazinr HCl decomposition using RP-HPLC assay method

The objective of this study was to investigate the effect of different sodium metabisulfite (SMBS) concentrations under a variety of ICH recommended test conditions. An attempt was made to test the feasibility of increasing shelf life when stored under different conditions. The promethazine hydrochloride (HCL) sample solutions used according to USP 24 and BP 1999 were prepared using different concentration of sodium...

Author(s): Rasha Saad, Heyam Saad Ali, Babiker M. A. Elhaj and Mai Al Ajaji