African Journal of
Biotechnology

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

AJB Articles in press

Antimalarial potential and protective properties of Azadirachta indica (Dongoyaro) ethanolic stem bark extract in mice infected with Plasmodium berghei NK65

Article in Press

The study determine the in vivo antiplasmodial potential and protective properties of Azadirachta indica (Dongoyaro) ethanolic stem bark extract in mice infected with Plasmodium berghei NK65. The GC-MS, qualitative, quantitative and antioxidant scavenging activities of the stem bark extract of A. indica were determined using standard procedure. The acute toxicity and in vivo antiplasmodial activities of the extract were...

Author(s):Momoh Johnson Oshiobugie, Adeniyi Michael Olaniyi and Aderele Oluwaseun Raphael

Optimization of plant growth regulators for meristem initiation and subsequent multiplication of five virus tested elite sweet potato varieties from Ethiopia

Article in Press

Vegetatively propagated crops are exposed to pests every growing season, providing them with the opportunity to feed on the plants and transmit diseases. Meristem culture is an important method to clean for viruses to restore high yields. Media optimizations with different concentrations and combinations of 6-benzylamino purine (BAP) and Naphthalene Acetic Acid (NAA) were tested for their effects on shoot initiation from...

Author(s):Dereje H. Buko, & Trine (A.K.) Hvoslef-Eide

Selection For And Biochemical Characterization Of Ddt Resistance In Laboratory Strains Of Anopheles Arabiensis

Article in Press

Resistance to conventional insecticides still constitutes a major obstacle to control of malaria vectors. Xenobiotic pollutants encountered by aquatic stages of natural populations of malarial vector species in agricultural and domestic environment often select for resistance to various insecticides. The laboratory Matatuine (MAT) and Kayamba (KGB) strains of Anopheles arabienwere subjected to controlled dosages of DDT for...

Author(s):Yayo AM, Ado A, Safiyanu M, Hemingway J

Genetic Characterization of Indigenous Tswana Pig Population Using Microsatellite Markers

Article in Press

The indigenous Tswana pig is currently listed as an endangered animal genetic resource and if not conserved it might go extinct. The objective of this study was to assess the genetic diversity (genetic characterization) of the indigenous Tswana pig population. Blood samples were collected from 30 randomly selected Tswana pigs in Kgatleng and South-East districts of Botswana for the assessment of genetic diversity using a...

Author(s):Mosweu Nicodemus, Thutwa Ketshephaone, Nsoso Shalaulani James and Kgwatalala Patrick Monametsi

Phylogenetic and Evolutionary Analysis of the Late Embryogenesis Abundant (LEA) Protein Family in Poaceae

Article in Press

Late Embryogenesis Abundant protein (LEAP) family is a group of stress-induced hyper-hydrophilic proteins that accumulate in response to cellular dehydration. Herein, a comprehensive phylogenetic and evolutionary analysis for LEAP in Poaceae was studied. The full-length LEAP sequences were aligned by Clustal Omega. Relatively short sequences of conserved blocks among each LEAP sequences were searched by the MEME suite....

Author(s):Darush Choobineh, Nafiseh Mahdinejad, Ali Niazi, Baratali Fakheri Abbasali Emamjomeh

New Elite Sugarcane Varieties, 'Tafach Shenkora' and 'Kay Shenkora' , for Commercial Production in Ethiopia

Article in Press

'Tafach Shenkora' and 'Kay Shenkora' sugarcane (Saccharum spp.) are the names assigned to sugarcane varieties with accession numbers Acc. 43 and Acc. 139, respectively. They were developed by Sugar Corporation, Research and Development and were registered and released in June 2019 by the National Variety Releasing Committee of Ethiopia to growers in three sugar estates in Ethiopia. 'Tafach Shenkora' and 'Kay...

Author(s):Esayas Tena, Firew Mekbib, Abebech Seife, Zinaw Dilnesaw and Feyissa Tadesse

Molecular Characterization, Optimization of Polyhydroxybutyrate (PHB) production using agro-wastes as substrate by Bacillus cereus

Article in Press

Non biodegradability of plastics has discouraged its use and hence alternative eco friendly polyhydroxybutyrates have gained popularity. The use of cost effective and easily available substrates in the production of polyhydroxy butyrate (PHB) enhances its application and further reduces its cost and hence PHB can be efficiently used instead of plastics. The present work was performed to study the optimum production of...

Author(s):Jasmine R, Hannah S

Isolation and characterization of lactobacilli in raw milk derived whey and its potential use as probiotic

Article in Press

The main purpose of this study was to isolate lactobacillus from raw milk derived whey and to determine its potential use as probiotics. Fifteen samples of milk were obtained and tagged (LS1 to LS15) from a homogeneous group of Holstein cows and later at our laboratory the milk was processed to obtain whey, which was inoculated in MRS medium where we got 30 bacterial isolates and selected those who were bacilli gram...

Author(s):Guel-García G. Paulina, Rodríguez Castillejos Guadalupe C., Hernández Mendoza José L.

The adults of Anthonomus grandis as disseminator of Fusarium chlamydosporum and use of oregano extracts for their control

Article in Press

The Cotton Weevil is an insect that causes considerable losses to the cotton industry. Its larvae grow inside the cotton bolls, damaging them. It enters diapause during the winter and becomes active again in the first months of the year. Pheromone traps can be used to estimate their populations and implement control measures. This work analyzes samples of weevil populations collected in traps placed on mexican...

Author(s):Jesus DiCarlo Quiroz Velasquez; J. Luis Hernandez-Mendoza, Guadalupe Rodriguez Castillejos; Gerardo Sanchez Ramos; Cristian Lizarazo Ortega; Jesus Gerardo Garcia Olivares

Analysis of Promoter region, Motif and CpG Islands of Rhizobium giardinii DNA-binding Response Regulator A3AY_RS01 Genes

Article in Press

Even detailed analysis of promoter region, motif and CpG islands in R. giardinii A3AY_RS01 genes studies is necessary to predict promoter and regulatory elements there is no previous promoter and regulatory element study report in R. giardinii A3AY_RS01 genes. For that reason this study was aimed to predict regulatory element of R. giardinii DNA-binding response regulator A3AY_RS01genes.Sixty eight percent (68%) of...

Author(s):Genet Atsbeha, Mulugeta Kebede

Responses of Soybeans (Glycine max (L.) Merrill) Associated with Variable Plant Density Stress Applied at Different Phenological Stages: Plasticity or Elasticity?

Article in Press

The study evaluated developmental responses associated with plant population density stress applied at different phenological phases and effects on grain yield in determinate and indeterminate soybean (Glycine max L.). A split-split plot design with four replications, with variety (main plot), plant density (sub plot) and thinning time (sub-subplot) was adopted. Two determinate genotypes (Lukanga and SC Semeki) and an...

Author(s):Noah Manda and Mebelo Mataa

GENETIC DIVERSITY OF PROLACTIN GENE IN JAPANESE QUAIL (Coturnix coturnix japonica)

Article in Press

This study was carried out to investigate the genetic diversity of prolactin gene (PRL gene) in Japanese quails using PCR-RFLP marker. One hundred and thirty nine quails were sampled for PRL loci analysis. DNA was extracted from the samples. Polymerase chain reaction (PCR) and electrophoresis was used to characterize a 24 base pair (bp) insertion/deletion in a 358 bp PCR product. Test for Hardy-Weinberg Equilibrium were...

Author(s):FRANCISCA OSEAHUMHEN EICHIE, ADEBOWALE EMMANUEL SALAKO, HENRY OSAMEDE OSAIYUWU

Phytoremediation: A general Review

Article in Press

This paper makes a general review of phytoremediation emphasising a bit on phytoextraction, in terms of factors that affect it and possible enhancements of such factors for optimization. Phytoremediation is a diverse collection of plant-based technologies that are used to clean contaminants such as heavy metals and metalloids (HMs) from environments, especially soil and water bodies. HMs are toxic to most biota, but some...

Author(s):TAOLO BONNIE TUMEDISO, B MOSEKI

Antifouling Activity of Amphiora anceps on Marine Diatoms: a Comparison with Copper Sulphate

Article in Press

The search for environment-friendly and non-toxic antifouling paint components has led to the investigation of natural products from seaweeds. The defence metabolites utilized by seaweed to deter redundant epibiosis have potential for harnessing and use in antifouling applications. A search for new non toxic antifouling paints has been tested in collected seaweed such as Amphiora anceps. The seaweed was extracted with...

Author(s):Murugan Suresh, Palanisamy Iyapparaj, Perumal Anantharaman

REVEALING EXPRESSION OF R GENES HOMOLOGUES AGAINST CLCUV IN GOSSYPIUM ARBOREUM AND G. HIRSUTUM COTTON GENOTYPES

Article in Press

Cotton leaf curl virus (CLCuV) is a major threat, limiting the fiber yield in Gossypium hirsutum. Resistance (R) genes are present in G. arboreum against this virus but these R genes are yet not known. Some resistance gene analogs (RGAs) of nucleotide binding site leucine rich repeats (NBS-LRR) have been reported in G. hirsutum. In the present study, RGAs from G. hirsutum and ESTs predicted as cell surface receptor genes...

Author(s):RAKHSHANDA MUSHTAQ, Muhammad Asif, Aftab Bashir

CANE YIELD AND JUICE VOLUME DETERMINES ETHANOL YIELD IN SWEET SORGHUM (Sorghum bicolor L. Moench)

Article in Press

Sweet sorghum (Sorghum bicolor L. Moench) contains fermentable sugars in the stem that can be converted to ethanol. The current study aimed at evaluating the performance of three sweet sorghum genotypes with five checks and contributes towards availing suitable sweet sorghum for industrial ethanol production. Field studies were carried out in Kenya at varied locations in a randomized complete block design with three...

Author(s):

Stabilization of corn oil by phenolic camellia oil cake extract during storage

Article in Press

Camellia oil cake extracts was used as a source of phenolic compounds. Isopropanol, normal hexane and diethyl ether were evaluated as different solvents to extract these phenolic compounds which examined by Folin-Ciocalteu assay. The antioxidant potential of camellia oil cake extracts was measured by ferric reducing antioxidant power assay and results showed that the antioxidant activity strongly depend on the solvent....

Author(s):FEI SONG, Hui WANG

Efficacy of botanical pesticides against Acanthoscelides obtectus (Coleoptera: Chrysomelidae): A strategy for insect pest control

Article in Press

Laboratory experiments were carried out to investigate the efficacy of botanical insecticidal materials against a major insect pest of stored beans, Acanthoscelides obtectus. The materials employed by small scale farmers to reduce the problem of bean postharvest losses caused by A. obtectus were identified and collected from Dar es Salaam and also from Kimuli and Mabira villages in Kagera region in Tanzania. The materials...

Author(s):Rugumamu Costancia Peter

Genetic improvement for green pod yield and number of pods in two segregation populations of pea (Pisum sativum L.)

Article in Press

This study was conducted at the Experimental Farm of The Faculty of Agriculture, South Valley University, Qena Governorate during three successive winter seasons of 2011/2012, 2012/2013 and 2013/2014 to improve green pod yield/plant (g) of field pea. The breeding materials used in this study were F3, F4 and F5 generations of the two field pea crosses Alaska X Little Marvel (population 1) and Alaska X Dwarf Gray sugar...

Author(s):Rashwan A., M., A

Hypolipidemic, Hypoglycemic and Anti-obesity effects of Opuntia ficus indica aqueous extract in rabbits

Article in Press

Opuntia ficus indica is used in traditional medicine for the treatment of hyperlipidemia, hypercholesterolemia, diabetes and dermal burns. The aim of this study was to analyze and compare the effects caused by the Opuntia ficus indica aqueous extract on serum and lipid parameters in white male rabbits (initial mean weight 1.95 kg). Rabbits were divided into two groups (n=6), the first group represented the control group,...

Author(s):HALMI S

COMPARATIVE STUDIES ON PRODUCTION OF BIOETHANOL FROM PEELS OF COCOYAM AND SWEET POTATO USING Aspergillus niger AND Saccharomyces cerevisiae

Article in Press

The aim of this research is to compare the potential of sweet potato and cocoyam peels (non-edible waste material) for bioethanol production using sequential monocultures of Aspergillus niger and Saccharomyces cerevisiae and co-cultures of Aspergillus niger and Saccharomyces cerevisiae. Each sample was dried and ground; and was subjected to heat pretreatment. Direct fermentation of pretreated sweet potato and cocoyam peels...

Author(s):DANIEL UDENZE and Victoria Adegunloye

USE OF MARKER ASSISTED SELECTION (MAS) FOR THE CHARACERIZATION AND INTROGRESSION OF RUST RESISTANCE GENES USING AN F2 ROBIN/KWALE POPULATION

Article in Press

Breeding for durably resistant varieties is amongst the best strategies to exterminate the threat posed by stem rust race Ug99 of wheat. This race has continued to spread and ascertain itself as a danger to global wheat production and consequently food security. The continuous swift development of new DNA marker technologies has proved invaluable in breeding for durable rust resistance to stem rust race Ug99 and its...

Author(s):BERNICE NGINA WAWERU, PETER NJOROGE NJAU, GODWIN KAMAU MACHARIA, OLIVER KIPLAGAT

A COMPARATIVE STUDY ON THE PROXIMATE AND PHYTOCHEMICAL ANALYSIS OF THE MALE AND FEMALE PARTS OF CARICA PAPAYA

Article in Press

The phytochemical analysis of the male and female plant parts (leaves, flower and bark) of Carica papaya was investigated. The analysis revealed the presence of some plant bioactive components. There was a difference in the bio-active component of the male and female leaves, both leaves revealed the presence of alkaloid, tannin, phlobotanins, saponin, flavonoid, anthraquinones, phenol and cardiac glycosides. Terpenes,...

Author(s):DEBORAH ONIFADE

Comparison and optimization for DNA extraction of okra (Abelmoschus esculentus L. Moench)

Article in Press

The extraction of high-quality DNA from okra (Abelmoschus esculentus L. Moench) is notoriously troublesome due to the high contents of polysaccharides, polyphenols, and different secondary metabolites. We have tested seven extraction buffers on silica dried okra leaves. Here, we describe a simple, rapid and modified procedure for high-quality DNA extraction from okra, which is amenable for downstream analyses. In contrast...

Author(s):Letebrhane Kidane, Marie Kalousova, Hewan Demissie

Serum Total Protein concentration and Liver Enzymes Activities in albino rats model administered with ethanolic leaf extract of Ficus capensis

Article in Press

There is an increased use of the Ficus capensis plant and concerns about safety alongside efficacy have been raised. The aim of this work is to study the total protein, bilirubin and Serum Liver Enzyme activities in Albino rats administered graded concentrations of ethanol extract of F. capensis leaf. Twenty-four albino rats were shared into four groups and different concentrations of the leaf extract were administered...

Author(s):Chukwudoruo, Chieme Sunday, Osuji-Kalu-Ibe, Nnenna Chinenyenwa, Igwe, Kalu Okereke, Iheme, Callistus Izunna, Obasi, Uchechi Kingsley, Mba, Blessing Amarachi

Evaluation of sugarbeet monogerm O-type lines for salinity tolerance at vegetative stage

Article in Press

The increased production of sugar beet under rainfed conditions on saline–sodic soils in the Iranian areas highlights the importance of salt tolerant varieties. Screening of genotypes for salinity tolerance is difficult in field due to heterogeneity of physical and chemical properties of soil. In order to evaluate the salinity tolerance of 21 sugar beet monogerm O-types lines, a pot experiment was conducted using a split...

Author(s):Zahra Abbasi

Lactic acid bacteria fermentation of coconut milk and its effect on the nutritional, phytochemical, antibacterial and sensory properties of virgin coconut oil produced

Article in Press

Coconut oil has profound health benefits but the high content of fatty acids is a concern to many consumers, several processing methods have failed to produce oil with considerable change in fatty acid content. In this study, selected lactic acid bacteria including Lactobacillus plantarum, Lactobacillus pentosus, Leuconostoc mesenteroides and Enterococcus faecium were used to ferment coconut milk for production of virgin...

Author(s):Olateru Comfort T., Popoola Bukola M., Alagbe Gbolahan O. Ajao Omobayonle

Yield coefficient for the growth of Pseudomonas sp. AQ5-04 at various concentrations of phenol

Article in Press

Phenol is widely used by many industries in Malaysia, and it is one of the highly toxic environmental pollutants with levels exceeding the regulatory standard have been reported in Malaysia. A phenol-degrading bacterium; Pseudomonas sp. AQ5-04, a metabolically versatile xenobiotic-degrading bacterium, has been isolated from a local contaminated site. The bacterium was able to withstand a high concentration of phenol. This...

Author(s):Abubakar Aisami, Nur Adeela Yasid, Wan Lutfi Wan Johari, and Mohd Yunus Shukor

Comparative Performance of Different Yeast Strains in the Production of Bioethanol Using Simultaneous Liquefaction Saccharification and Fermentation (SLSF).

Article in Press

The performance of a hybrid of Saccharomyces cerevisiae and Saccharomyces paradoxus (Yeast B) compared with an industrial strain of Saccharomyces cerevisiae (Yeast A) was studied. The two strains of yeasts: Yeast A obtained from the Bioresources Development Centre, National Biotechnology Development Agency Ogbomosho and Yeast B obtained from Scotch Whisky Research Laboratory in Edinburgh, Scotland (Strain 63M) were...

Author(s):Edith Lemechi Leonald-Emeka, Elizabeth Funmilayo Aransiola, Taiwo Hassan Ibrahim, Julius Olusegun Oyedele, Rose Maxwell Gidado , Andrew Chibuzor Iloh and Bamidele Ogbe Solomon,

A novel method for DNA extraction from animal blood by adding bacterial lysozyme

Article in Press

The DNA quality is one of the main conditioning factors for the individual identification. Therefore, appropriate methodologies are required for their extraction. A new DNA extraction method from sheep blood was implemented based on the hexadecyl trimethyl ammonium bromide method (CTAB 2%), 1) temperature changes, cell lysis and variation of washes (CTABM), and 2) addition of an incubation process with bacterial lysozyme...

Author(s):Fidel M. Torres-Lemus, Hilda V. Silva-Rojas, Omar Hernández-Mendo, Maria M. Crosby-Galvan.

Effects of inoculation with some native arbuscular mycorrhizal fungi on tomato (Solanum lycopersicum L.) growth

Article in Press

In Burkina Faso, tomato (Solanum lycopersicum L.) sector plays a very important socio-economic role. However, its production is confronted to many constraints, among which the soil poverty in mineral elements such as nitrogen and available phosphorus resulting in an increase in the area of land that is sown for this crop and an increase in the use of chemical inputs. In addition, chemical inputs have shown their limits...

Author(s): Hadou Haro, Kadidiata Bahadio, Kadidia B. Sanon

In vitro propagation of Polygonatum verticillatum All. -an important medicinal plant

Article in Press

To overcome the limitations of traditional propagation, this research was initiated to develop an in vitro propagation protocol for Polygonatum verticillatum (L.) All. by using seeds as explants. The present study was undertaken to evaluate the most suitable concentration of growth regulators for callus induction and subsequent rhizome and shoot regeneration. Murashige and Skoog (MS) medium fortified with Kn (8mg/l) in...

Author(s):Jasfeeda Qadir, Seema Singh, Mahroofa Jan, Sumeet Kour, Zahoor A. Kaloo, Bashir A. Ganai

Sub-acute and chronic toxicity of silver nanoparticles synthesized by Azadirachta indica extract

Article in Press

In this study, biosynthesis of silver nanoparticles (AgNPs) and its toxicity were investigated. Different functional groups responsible for adsorption, morphology and absorption of the nanoparticle were characterized using UV-Vis, Fourier transmission infrared spectroscopy (FTIR), and scanning electron microscope (SEM) analyses, respectively. The toxicity of orally administered A. indica AgNPs was assessed in Swiss albino...

Author(s):Emma Nghilokwa, Judith Sokei, Peter Mwitari and Naomi Maina,

Yield and Stability Analysis of Promising Mung Bean (Vigna radiata L.) Genotypes in Ethiopia

Article in Press

Nine mung bean genotypes were evaluated for grain yield performance at four locations in 2016 main cropping season. The experiment was arranged in 3x3 lattice design with three replicates. Additive main effect and multiplicative interaction (AMMI) combined analysis of variance revealed that genotype, location and genotype x location interaction (GLI) significantly affected (p

Author(s):Hashim Samir Amsalu Berhanu Tumsa Kidane

Strain improvement of B. Parabrevis SR2729 for enhanced biodegradation of chlorpyrifos

Article in Press

Chlorpyrifos (CP) is of major concern for researchers and its biological degradation has been routinely practiced. Organophosphate hydrolase (OPH) responsible for the degradation of the agent was hyper-produced by the exposure of parental strain (PS) to EthBr for 70 minutes. Out of hundreds, the mutant strain SR2729-B (MS) showed 2.6 times greater zone of hydrolysis of CP, with OPH activity of 2.4 folds greater as compared...

Author(s):Samreen Rasool and Muhammad Anjum Zia

Stabilisation Potentials of the Essential oils of Thymus vulgaris L., Cinnamomum zeylanicum B. and Mentha piperita L. on Palm Olein at Accelerated Storage

Article in Press

This study aims at bringing to light the preservative potential of essential oils of Thymus vulgaris, Cinnamomum zeylanicum and Mentha piperita in the stabilisation of lipids against oxidation. The essential oils were extracted by hydrodistillation and chemical composition analysed by Gas Chromatography coupled with Mass Spectrometry. In vitro antioxidant potentials of the essential oils were tested by the 2,...

Author(s):Wilson Agwanande Ambindei, Pierre Michel Dongmo Jazet, Leopold Ngoune Tatsadjieu Priya P, and Nisha P

Tri-Phala Residue: A Low-Cost Substrate for Gallic Acid and Isoquercitrin Production by Aspergillus niger ATCC 16888 Under Solid-State Fermentation in Packed-bed Bioreactor

Article in Press

Tri-Phala residue (TR) was studied as a substrate for isoquercitrin and gallic acid productions by solid-state fermentation of A. niger in the packed bed bioreactor aerated at of 0.1, 0.3 and 0.5 vvm. The contents of biomass, isoquercitrin and gallic acid in the fermented TR along the height of the bioreactor were analyzed. The highest fungal growth rate was found on middle position in the SSF with 0.5 vvm aeration as...

Author(s):Teerin CHYSIRICHOTE and Pattarabhorn PAKAWEERACHAT

A survey of the aflatoxin level and molecular identification of fungal contaminants in poultry feed mills from different geopolitical zones of Nigeria.

Article in Press

Aflatoxin contamination of poultry feeds in Nigeria is a common problem in most feed mills. A survey on the distribution of aflatoxin in feed mills from different parts of Nigeria was carried out. The aflatoxin concentration in most feed mills from the North-western part of Nigeria was low compared to the concentration in the feed mills from the South-eastern part. The total aflatoxin level in three Feed mills (B, C and D)...

Author(s):Anthony C Mgbeahuruike٭, Emmanuela Ifeoma Nwoko, Onwumere O. S. Idolor

“PCR-based identification of Prevotella copri sp. Associated with New Onset Rheumatoid Arthritis (NORA)”

Article in Press

Rheumatoid arthritis (RA) is a prevalent systemic autoimmune disease, caused by a combination of genetic and environmental factors. Here we performed 16S sequencing on 30 samples from rheumatoid arthritis patients and controls. We identified the presence of Prevotella copri as strongly correlated with disease in new-onset untreated rheumatoid arthritis (NORA) patients. Increases in Prevotella abundance correlated with a...

Author(s):Veena K D , Prabhurajeshwar and Rashmi S B

Multi-Environment Yield Trials Analysis of Stability through AMMI and GGE Biplot Model of Cowpea (Vigna Unguiculata L.) Genotypes in Ethiopia

Article in Press

Developing high yielding cultivars with wider adaptability is the ultimate goal of any plant breeders. However, attaining this goal is complicated by genotype environment interaction. Sixteen cowpea lines including two standard checks were arranged in 4x4 triple lattice design and evaluated at seven locations for grain yield performance in 2016 main cropping season. Combined analysis of AMMI revealed that genotype,...

Author(s):Multi-environment trial, Cowpea, GEI, Broad adaptation

Qualitative Screening of Lipolytic Bacteria from Lipid–Rich Environmental Samples of Wolkite Town

Article in Press

Abstract The majority of lipolytic enzymes in industrial use are currently attracting an enormous attention because of their bio-technological applications. Lipase producing bacteria were isolated from five fat containing soils of oil mills, abattoir, garage, Sewage and cafeteria and were grown on nutrient agar. In order to identify the best lipid producing bacteria, the bacterial strain were screened in tributyrin...

Author(s):Mulugeta Belay, Getu Hailu , Ewenetu Azene, Eyuel Abasa, Meseret Neguse, Hayat Abdo, Getachew Tayachew

In-silico and in-vitro Toxicological Activities of the Biflavonoid Agathisflavone

Article in Press

Agathisflavone presented antioxidant, antiviral, antimicrobial and neuroprotective properties in in-vitro and in-vivo assays. However, few investigations that describes the possible toxicological effects of agathisflavone. This investigation aimed to evaluate in-silico and in-vitro toxicity of this biflavonoid. In-silico biological activity spectrum, and toxic risks prediction were performed by means of computational...

Author(s):Anderson Wilbur Lopes Andrade and Jéssica Pereira Costa

Molecular characterization of some bacteria with bioleaching potentials from Agbaja mines of Kogi State, Nigeria

Article in Press

Molecular studies were carried out on two bacterial species isolated from iron ore mines of Agbaja in Kogi State, Nigeria. This is with a view to exploring their bioleaching potentials. Preliminary morphological and biochemical tests shows that the two bacteria strains belong to Acidithiobacillus and Leptospirillum species respectively. X-ray diffraction analysis conducted on the raw iron ore gave concentrations of iron to...

Author(s): Ekpa, E,Onwurah I.N.E and Ezeanyika, L.U.S.

Disruption of C-terminal Domain Impairs in planta GCN2-dependent Phosphorylation of Arabidopsis eIF2α-subunit

Article in Press

Elucidation of mechanisms by which plants respond to stress is crucial for developing stress tolerant crops. Unlike plants, stress response mediated by eIF2α-kinases is well described in yeast and mammalian systems. We isolated a NaCl-tolerant mutant (JP2) with 35S enhancers upstream of AtGCN2. Under NaCl-stress, JP2 had 1.4 fold AtGCN2 transcripts than control. JP2 phenotype was however inconsistent, but prompted enquiry...

Author(s):Indieka S. A and Dominy P. J#

Evaluation of Tephrosia vogelii and Annona squamosa Extracts for their Efficacy against Insect Pests of Watermelon and their Effects on its Fatty Acid Profile

Article in Press

This experiment was carried out at Ladoke Akintola University of Technology, Teaching and Research farm during the late and early planting seasons of 2016 and 2017 to determine the efficacy of Tephrosia vogelii F. and Annona squamosal L. extracts on major insect pests of watermelon (Citrullus lanatus Thumb.) and their effects on nutritional content and fatty acid compounds of watermelon. This experiment was arranged in a...

Author(s): Fatai O. ALAO, Timothy A. ADEBAYO, Oladele A. OLANIRAN

Molecular diversity assessment using sequence related amplified polymorphism (SRAP) markers in maize

Article in Press

Sequence related amplified polymorphism (SRAP) markers were used to assess the genetic diversity and relationship among 11 inbred lines of maize (Zea mayL.) genotypes. Thirteen SRAP marker combinations were used out of which 11were found to be polymorphic with a PIC value of 0.632 discriminated all of the 11 Z. mays L. genotypes. The Jaccard’s similarity coefficients between pairs of genotypes were found to vary from 0.69...

Author(s):H. Dabral, D.C. Baskheti and R. K. Singh and V. P. Kumar

Genetic diversity of Kebericho(Echinopskebericho), an endangered, endemic Ethiopian medicinal plant as reveled byISSR molecular markers

Article in Press

Echinopske bericho is an important endangered medicinal plant that is endemic to Ethiopia. The levels of genetic diversity and patterns of population structure in E. kebericho were studied using inter-simple sequence repeat markers (ISSR). Six selected primers were used to amplify DNA samples from 70 individuals, and a total of 79 loci were detected. Our results showed that genetic diversity was high at the species level...

Author(s):Muluken Enyew, Teklehaimanot Haileselassie, Tileye Feyissa , Kassahun Tesfaye,

Application of some selected yeasts isolates in bioelectricity generation using microbial fuel cell (MFC)

Article in Press

This study was designed to evaluate the potentials of selected yeast species for bioelectricity generation. Different yeast species were isolated from cassava wastewater, whey wastewater, human urine, and rabbit dung using the spread plate method. These isolates were identified using analytical profile index (API). Results obtained revealed the identity of the isolated yeast species as Candida famata, Candida hellenical....

Author(s):Adekanle Margaret Alaba, Julius K. Oloke, Adekunle O.Catherine, Adesiji Y.Oluwakemi, D.Adebode Adekanle

Cytotoxicity, genotoxicity and toxicity of plant biostimulants

Article in Press

The great expansion that in recent years has been in the use of plant biostimulants has underestimated the possibility of producing environmental risks. The objective of this study was to evaluate the cytotoxicity, genotoxicity and toxicity of three different biostimulants (widely marketed in Brazil and exported to other countries) – A, B and C - on both plant and animal indicator organisms. In A. cepa, the concentrations...

Author(s):Ana Paula Soares e Silva, Tamires de Sousa Silva, Amanda de Almeida dos Santos; Karoline Griebler Ribeiro; Márcia Maria Mendes Marques, Pedro Marcos de Almeida, Ana Paula Peron,

USE OF SIMPLE SIQUENCE REPEATS (SSRs) MOLECULAR MARKERS TO IDENTIFY COMMON BEAN (Phaseolus vulgaris L.) GENOTYPES WHICH ARE RESISTANT TO ANTHRACNOSE (Colletotrichum lindemuthianum)

Article in Press

Common bean (Phaseolus vulgaris L.), is among the most important legume crop for protein source in peoples’ diet globally and including Kenya. Anthracnose (Colletotrichum lindemuthianum) is a common disease of legumes that causes yield loss of up to 90-100%. The aim of the study was to investigate the use of SSR molecular markers to identify anthracnose resistant common bean genotypes. Forty four selected common bean...

Author(s):Gaudencia J. Kiptoo , Miriam G. Kinyua , Lexa G. Matasyoh, Oliver K. Kiplagat

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