African Journal of
Biotechnology

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

AJB Articles in press

Article in Press

Selection of Lactobacillus strains newly isolated from Algerian camel and mare fermented milk for their in vitro probiotic and lipolytic potentials

The main objective of this study was the characterization of new lactobacilli probiotic strains belonging to lactic acid bacteria (LAB). Eighty-eight strains were isolated from different Algerian camel and mare fermented milks, three of them were pre-selected for their stability, their fast growth and their resistance to acidity and bile salts. Cell viability was assessed in simulated gastric and intestinal conditions. On...

Author(s):Sabrina Amaraa,b, Halima Zadi-Karama, Nour-Eddine Karama

Article in Press

Optimizing DNA Isolation Protocol for Rosemary (Rosemarinus officinalis L) Accessions

Rosemary plant is in high demand due to its application in traditional health care, food flavoring, fragrance and pharmaceutical industries. It contains high level of secondary metabolites which are responsible for its beneficial activities. Application of molecular techniques would facilitate the production of these substances and screening of accessions. The isolation of PCR amplifiable genomic DNA is a pre-requisite for...

Author(s):Zewdinesh Damtew Zigene, Bizuayehu Tesfaye Asfaw, Tesfaye Disasa Bitima

Article in Press

Quantitative Determination of Antibiotics in Aqueous Samples from Rivers, Mindu Dam and Mafisa Wastewater Treatment Plant Located in Morogoro Municipality, Tanzania

The anthropogenic load of antibiotics in Morogoro Municipality water bodies was estimated using the ELISA technique. Commercially available enzyme-linked immunosorbent assay (ELISA) kits that are commonly used for detection of tetracyclines, sulfonamides and quinolones residues in meat, milk, eggs and honey were adopted for analysis of these antibiotics in surface waters. Thirty three sampling points were selected,...

Author(s):Ally M.HS, Dalsgaards A, Mdegela RH

Article in Press

“IMPROVING TRADITIONALLY FERMENTED AFRICAN FOODS THROUGH BIOTECHNOLOGY”- Need to translate art to science

Africa has a lot of fermented foods which need to be further developed for improved nutrition. Many authors have documented interesting articles and reviews on fermented foods from different parts of the world. The climate in many African countries favours short-term storage of fresh foods. Storage facilities are inappropriate and the supply of light energy is irregular. This suggests that fermentation might serve as an...

Author(s):Philippa Chinyere Ojimelukwe

Article in Press

Role of dietary practices in onset of type 2 diabetes and intervention amongst female population

This research aimed to study the effects of dietary intervention on body weight and glycemic control among females having type 2 diabetes, find the behavioral health issues related to the disease, change the wrong dietary practices carried out by the patients for the purpose of nutrition intervention, and exhibit the change if any, in the form of their biochemical parameters. Here, a retrospective case control study was...

Author(s):Salma Mazhar

Article in Press

In Vitro Regeneration Protocol through Direct Organogenesis for Jatropha curcas L. (Euphorbiaceae) Accessions in Ethiopia

Jatropha curcas L. is among important tree crops in the world with a potential for biofuel production. In Ethiopia, there is a soaring investors’ interest to produce Jatropha in the country for biodiesel production. However, insufficient good quality propagation material is a major production constraint. A study was undertaken to establish a protocol for in vitro mass propagation of three Ethiopian Jatropha accessions viz....

Author(s):Hundessa Fufa, Meseret Tesema and Jiregna Daksa

Article in Press

Introduction of the exotic breeds and cross breeding of local chicken in Ethiopia: treats of the genetic erosion: a review

¬This study reviews the introduction of the exotic breeds and cross breeding of local chicken in Ethiopia, treats of the genetic erosion and needs for conservation with aim of delivering in the short form and clear information for beneficiaries and to whom it may concern. Poultry production and its product consumption are progressively increasing globally. In Ethiopia, chicken production plays a great role as a primary...

Author(s):Yonas Kejela

Article in Press

Extreme Resistance to Late Blight Disease by Transferring 3 R Genes from Wild Relatives into African Farmer-Preferred Potato Varieties

Three late blight resistance (R) genes from wild potato species were transferred as a stack into the farmer-preferred varieties ‘Tigoni’ and ‘Shangi’. Transgenic events were tested by detached-leaf assays (DLA) and whole-plant assays (WPA) with isolates of Phytophthora infestans using 20,000 sporangia / mL inoculum. For the first DLA, 9 out of 13 ‘Tigoni’ and 10 out of 12 ‘Shangi’ transgenic events had scores below 3% of...

Author(s):Ethel N. Webi, , Kariuki Daniel, Kinyua Johnson, Njoroge Anne, Ghislain Marc, Magembe Eric .

Article in Press

Characterization of crude invertase extracted from Aspergillus species CSA 35

The enzyme invertase is very useful, especially in food industries. Invertase hydrolyzes the disaccharide sucrose into two monosaccharides, glucose and fructose. Invertase was extracted from Aspergillus sp. CSA35, and studied using spectrophotometric methods for enzyme kinetics and determination of other factors affecting enzyme activities such as salt tolerance, pH, temperature and substrate specificity. The invertase...

Author(s): Ohwofasa Aghogho¹, Aliyu Abubakar Aliyu¹, Enoch Kwaku Larrey¹ and Ogbodu Ogaga Daniel²

Article in Press

Effect of ethanolic leaf extract of Vinca major L. on biochemical parameters and glucose level of alloxan induced diabetic rats

In view of World Health Organization (WHO) recommendation on the use of medicinal plants for the management of diabetes mellitus, this study evaluated the effect of ethanolic leaf extract of Vinca major L. on biochemical parameters and glucose level of alloxan induced diabetic rats as objective. Sixty-four male Wistar albino rats were induced with diabetes by a single intraperitoneal injection and were separated into four...

Author(s):Monago-Ighorodje Comfort;Duru Majesty; Nwauche Kelechi; Okoroh Nkemakolam; Kalu Winner; Eboagwu Ijeoma, Eze Adindu; Ekpo Grace; Odika Prince; Nwaogwugwu Caleb; and Otta Emmanuel

Article in Press

Potential of Opuntia stricta Haw (Mexican elephant ear) to remove Cyanobacteria in Surface Water

In this study, assays were carried out to evaluate the efficiency of cactus Opuntia stricta cladodes as a coagulant for removal of cyanobacteria cells. To carry out the coagulation assays, water from eutrophic reservoir Bodocongó, in Brazilian semiarid, with cyanobacteria bloom of Microcystis aeroginosa, Plankthotrix isothrix and Cylindrospermopsis raciborskii were sampled. This water was submitted to coagulation with...

Author(s):Janiele F. Nery, Gleydson K. M. Nery, Adriana G. Magalhães Salomão S. Medeiros

Article in Press

Descriptive sensory evaluation of “gari” produced from fermentation of cassava using some selected Rhizopus species

Two local varieties of cassava (Manihot esculenta crantz) pulps named “okoiyawo” and “odongbo” were fermented with pure Rhizopus oligosporus, R. nigricans and R. oryzae. The products were subsequently processed in to “gari”, the form in which it is popularly consumed in Nigeria. The selected process variables are cassava varieties, starter culture and fermentation time (2 days, 4 days and 6 days). Fifteen randomly selected...

Author(s): Osunbade, O.A and Adejuyitan J.A

Article in Press

Effect of Indole -3- butyric acid on in vitro rooting of two tomato (Lycopersicon esculentum Mill.) varieties

In vitro rooting of micropropagated shoots were carried out with the aim of evaluating the root induction responses of two tomato varieties (Gelilema and Chali) to Indole -3- butyric acid (IBA). Seven levels of IBA (0.0, 0.25, 0.5, 0.75, 1.0, 1.25 and 1.5 mg L-1) were used in a completely randomized design (CRD) in factorial combinations (seven level of IBA*two varieties) with three replications. The ANOVA showed that the...

Author(s):Endalkachew Baye, Temesgen Matewos, Derbew Belew

Article in Press

CHARACTERIZATION OF PRODUCTS FROM SAWDUST BIODEGRADATION USING SELECTED MICROBIAL CULTURE ISOLATED FROM IT

The characterization of products from sawdust degradation using selected microbial culture isolated from it was carried out. The sawdust waste samples were collected from MCC timber market in Cross River State. The saw dust sample was diluted using serial dilution method and subjected to further analysis. The pour plate technique was employed to isolate the associated microorganisms. Accorgingly, five bacteria species were...

Author(s):Lennox, Josiah A, Asitok, A, John, Godwin E, Etim, Blessing T

Article in Press

Testing of aqueous extracts of Pistacia lentiscus L. and Zizyphus lotus L. on the development cycle of Thaumetopoea pityocampa Schiff in Bordj Bounaâma

The evaluation of the insecticidal effect of plants presents one of the approaches to the enhancement of phylogenetic heritage and an alternative to the use of chemical insecticides while preserving the environment. The insecticidal effect of the 2 plants Pistacia lentiscus and Zizyphus lotus naturally grown in Algeria was tested on the pine processionary larvae Thaumetopoea pityocampa. The aqueous extracts of the fresh...

Author(s):Rabie Fatma, Chebouti-Meziou Najiba, Guendouz-Benrima Atika

Article in Press

Obtainment of Fermentable Sugars from Rice Husks by Enzymatic and Acid Hydrolysis

The use of lignocellulosic biomass for obtaining biofuels and other based on microbial fermentation is a promising approach. Rice (Oryza sativa L.) has worldwide importance, being its husks one of the most abundant agricultural wastes of the world. Because it abundance and low cost, rice husks may be promising prime matter for fermentative processes. The aim of this research work was to evaluate the hydrolysis of Rice...

Author(s):Andréia da Silva Alencar, Joselma Pedrosa da Silva, Pedro Aurélio Costa Lima Pequeno, Ítalo Thiago Silveira Rocha Matos, Ana Paula Folmer Correa, Marcos José Salgado Vital, Adriana Flach

Article in Press

Fertilization vitality of Boer goat in vivo liquid semen uses basic diluent of coconut water (Cocosnucifera L.) after cooling

The purpose of this study is to prove the fertilization vitality in vivo through artificial insemination method in female goats. This study using a Randomized Block Design (2 treatments, 15 replications) and the semen was collected from 3.5 yeas old male Boer goat and injected into 30 female Etawah (PE) goats with following experiment variables. The experiment variables were semen diluent factors, P0 (control): Tris...

Author(s):Muhammad Ade SALIM, Muhammad Nur IHSAN, Aulia Puspita Anugra YEKTI, and Trinil SUSILAWATI

Article in Press

Development and evaluation of organic silicon nanoparticles

Skin is an important component of outer beauty; it is the focus of many surgical and non- surgical procedures. Skin changes associated with intrinsic or extrinsic aging, such as wrinkles, sagging and pigmentation changes, can cause people to look for cosmetic procedures to improve the appearance of their skin. Studies demonstrate the importance of organic silicon in the production of type I collagen. The present work aimed...

Author(s):Rosana Letícia da Rosaa Luana Serbaia Robson Schimandeiro Novaka Patrícia Mathias Doll Boscardina Josiane de Fátima Padilha de Paulaa

Article in Press

Lack of Association of Toll-Like Receptor 2 rs3804100 Polymorphism with Paediatric Tuberculosis in South Africa

Toll-like receptor 2 (TLR 2) genetic polymorphisms are important factors that are involved in the development of clinical tuberculosis. In this study, a single nucleotide polymorphism of the immune response protein molecule, toll-like receptor 2 designated as rs3804100 involving T/C polymorphism was carried out by genotypic analysis of DNA obtained from blood samples of the paediatric population in South Africa consisting...

Author(s):Inyang Udosen

Article in Press

CHARACTERIZATION OF FATTY ACID COMPOSITIONS EXTRACTED FROM Lates calcarifer (ASIAN SEABASS) BYPRODUCTS (HEAD, LIVER AND INTESTINE)

Malaysian Lates calcarifer (Asian seabass) is readily adapted to the freshwater environment and is suggested to have different long-chain polyunsaturated fatty acids biosynthetic activities compared with other marine fish and yet to be determined. Additionally, fatty acid profiling of L. calcarifer byproducts are not yet studied. Hence, in this study, fatty acid compositions of L. calcarifer byproducts (head, liver and...

Author(s):Yu-Bin CHAN, Yoke-Leng SIM and Chaiw-Yee TEOH

Article in Press

Microbial and Biochemical Changes Occurring During Production of Njemani, a Traditional Zimbabwean Beverage.

Njemani is a type of traditional palm wine produced in the Shangaan tribe of Zimbabwe and plays an important role in many traditional functions and ceremonies. The wine is consumed in a variety of flavors from sweet to sweet-sour and vinegary. The main aim of the research work was to identify, analyze the biochemical and microbial changes that occur during production and documenting the whole procedure of Njemani...

Author(s):Sadza Beverly and Parawira Wilson . Sadza Beverly

Article in Press

Evaluation of Genetic Diversity in Iranian Rice (Oryza Sativa L.) Cultivars for Resistance to Blast Disease Using Microsatellite (SSR) Markers

Rice plays an important role in feeding the world’s population, especially the people who live in developing countries. More than 90 percent of world’s rice is produced and consumed in Asia. Blast disease caused by Magnaporthe Oryzae is one of the most important diseases of rice in the world. This study evaluated the Power of 10 blast-specific SSR markers in determination of genetic diversity among 30 cultivars of Indica...

Author(s):Farzaneh Farahzadi Asa Ebrahimi. Vahid Zarrinnia. Reza Azizinezhad

Article in Press

Light spectrum and nutsedge (Cyperus rotundus L.) extract in photomorphogenesis and water consumption by pomegranate cuttings and microclimatic changes

The purpose of this study was asses the influence of light spectrum and phytohormones variations on photomorphogenesis and water consumption by pomegranate cuttings and environmental microclimate changes. The research was carried out from August to November of 2018, on a completely randomized design, in a 4x4 factorial scheme, and with three replications. Four phytohormones concentrations (0, 25, 50, and 100%) and four...

Author(s):João Paulo da Silva, Rener Luciano de Souza Ferraz, Alexandre Eugênio da Silva, Patrícia da Silva Costa, Pedro Roberto Almeida Viégas, Antonio Manoel da Silva Filho, Mario Sergio de Araujo, Alberto Soares de Melo, Kaline de Souza Meira, Aldair de Souza Medeiros, Ivomberg Dourado Magalhães

Article in Press

Aquaponics Evaluation as an Alternative of Sustainable Criation of Nile Tilapia and Rational Use of Water in Production of Leafy Vegetables

An aquaponic system was built on a pilot scale at the Federal University of Grande Dourados, aimed at the sustainable production of Nile Tilapia (Oreochromis niloticus) with intensive recirculation of water, together with the production of leafy vegetables. The aim of this research was to evaluate an aquaponics system as an alternative for sustainable production and rational use of water in agriculture. A greenhouse with a...

Author(s):Gomes Filho Raimundo Rodrigues, RODRIGO COUTO SANTOS, CLAUDINEI MARTINS GUIMARÃES, CLAYTON MOURA DE CARVALHO, MANOEL VALNIR JUNIOR, SILVIO CARLOS RIBEIRO VIEIRA LIMA.

Article in Press

Effects of Eucalyptus urograndis essential oil and humic acids on root architecture of Stylosanthes guianensis seedlings

Stylosanthes is a genus of Leguminosae family present in south America, employed as fodder, cover pasture and in recovering degraded soils. Chemical fertilization and mycorrhization were recently adopted to increase Stylosanthes spp. performances and resistance to abiotic stresses but there are no studies evaluating use of humic acids and essential oils. This preliminary work, carried on in greenhouse growing Stylosanthes...

Author(s):André Luiz Paier Barroso; Marco Pittarello; Alberto Chambela Neto; Jader Galba Busato; Jefferson Luiz Antunes Santos; Leonardo Barros Dobbss

Article in Press

Control of ginseng leaf black spot disease by endophytic fungi

Ginseng plants associated with a number of fungi, several of which are proported to protect it from pathogens, thus improving plant growth. This study aimed to screen Panax ginseng leaves for endophytic fungi, and to assess these fungi for their efficacy to inhibit ginseng black spot disease caused by Alternaria panax. A total of 256 endophytic fungal isolates were obtained from P. ginseng leaves. Most of the fungal...

Author(s):Chunyuan Zhou, Shiquan Xu, Xiangmin Piao, Meixia Yan, Lili Cui, Yingping Wang

Article in Press

Agar affects the efficient invitro regeneration in tomato (Solanum lycopersicum L.)

Establishment of an efficient tissue culture protocol is an essential prerequisite in harnessing the advantage of cell and tissue culture for genetic improvement. The present study deals with the effect of desiccation created in the culture media i.e. in MS media supplemented with BAP (2.0 mgl-1) and kin (1.0 mgl-1) by increasing the concentrations of agar (0.8, 1.2, 1.6 and 2.0 percent). The observations were recorded on...

Author(s):RUMA DEVI, MS Dhaliwal and SS Gosal

Article in Press

Bacterial enzyme, sulphate, nitrate and ultimate latex paint biodegradation

The role of bacterial extracted enzyme, nitrate and sulpahte mobilization in latex paint degradation was investigated. The result revealed that degradation rate ie paint utilization was better enhanced by the presence of sulphate (SO42-) than nitrate (NO3-) though at no significant level (p>0.01). However, Bacillus species exceptionally mobilized nitrate (19.4mm) than sulphate (18.9mm). The overall mobilization rate for...

Author(s):Etim, Lawrence B.

Article in Press

Development of eco-friendly management packages against foot and root rot and wilt diseases of chickpea

The experiments were conducted in the fields of Plant Pathology Division, Bangladesh Agricultural Research Institute, Gazipur during 2013-14, 2014-15 and 2015-16 cropping years. The formulated Trichoderma harzianum (Tricho-compost for soil amendment and spore suspension for seed treatment) and organic soil amendment poultry refuse either singly or in combination with chemical fungicide Provax 200 WP were tested against...

Author(s):M. I. Faruk and F. Khatun

Article in Press

PLASMID PROFILE ANALYSIS AND DRUG RESISTANCE GENE TRANSFER AMONG SOME BACTERIAL ISOLATES FROM CLINICAL SPECIMENS

Plasmid-mediated Multidrug Resistance (MDR) has serious implications for the empiric therapy against pathogenic bacteria. Twelve (12) bacteria isolates were identified and selected based on the ability to grow on Luria-Bertani (LB) agar medium containing 100µg/ml ampicillin. The isolates tagged; U01, U02, U03, U04, U08, U10 and U11 were from urine specimens, S05, S06, S07 and S12 from stool, while B09 was from blood. The...

Author(s):ILIYASU, M.Y, UMAR A.F, AGBO, E.B, AND UBA, A,

Article in Press

SCIENTIFIC APPLICATIONS AND PROSPECTS OF NANOMATERIALS: A MULTIDISCIPLINARY REVIEW

Nanotechnology is the science of objects

Author(s):ADEOLA, Adedapo Oluwasanu FAPOHUNDA, Oluwaseun JIMOH, Adeleke Teslim, TOLUWALOJU, Tunde Isaiah, IGE, Ayokunle Olalekan, and OGUNYELE, Abimbola Chris

Article in Press

Association of Probiotic Potential of Strains of Pichia kudriavzevii isolated from “ogi” with the number of Open Reading Frame (ORF) in the nucleotide sequences

In this study, a total of 9 morphologically and biochemically different yeast species were isolated from Nigerian fermented food product, ‘ogi’. These yeast species were screened for probiotic properties such as antibacterial activities, acid and bile tolerance. Six species out of the yeast isolates that survived pH 2 were grown in 0.3% bile salts which were monitored by spectrophotometer for 5 hours. Three yeast species...

Author(s):Tolulope P. Alakeji, Julius K. Oloke

Article in Press

Survey of the incidence and distribution of groundnut rosette disease in major groundnut-producing regions of Western Kenya

Groundnut rosette disease (GRD) is the most important viral disease of groundnuts in sub-Saharan Africa. In Kenya, GRD infection especially before flowering results in 100% loss in pod yield. Surveys were conducted in 2016 and 2017 to determine the incidence and distribution of GRD in five major groundnut growing Counties of western Kenya. A structured questionnaire was used to assess GRD incidence and severity and...

Author(s):Erick Osewo Were, Evans N. Nyaboga and Elijah M. Ateka

Article in Press

Diversity and genetic structure in natural populations of Croton linearifolius Croton linearifolius (Euphorbiaceae) based on molecular markers

Croton linearifolius Mull. Arg, an endemic species of Brazil, has insecticidal activity proven. To the detriment of its importance as a natural resource, the studies of this species are incipient, as well as the strategies applied to its management and conservation. Were estimated the diversity and genetic structure in 61 individuals of C. linearifolius collected in the National Forest Contendas do Sincorá (NFCS)....

Author(s):Thalana Souza Santos Silva, Janaína Silva Freitas, Elisa Susilene Lisboa dos Santos and Carlos Bernard Moreno Cerqueira-Silva

Article in Press

Direct and indirect somatic embryogenesis from leaf and leaf derived callus of Momordica dioica Roxb

The protocol was developed for both direct and indirect somatic embryogenesis from leaf explants and leaf derived callus of Momordica dioica. Direct somatic embryos were achieved form leaf explants after 5 weeks of culture on MS medium supplemented with 2.0 mg/l TDZ+2.0 mg/l L-Glutamic acid and influenced by other factors. This is the first report of this kind in M. dioica for the formation of somatic embryos directly from...

Author(s):T. N. Swamy, Bylla Prasad, V. Suresh, V. Sadguna, G. Kavitha and Md. Mustafa

Article in Press

PHYTOCHEMICAL ANALYSIS AND GREEN SYNTHESIS OF SILVER NANOPARTICLES FROM Themeda quadrivalvis AND THEIR ANTIMICROBIAL PATTERN

The present study characterized the acute chemical compounds of Themeda quadrivalvis using GCMS and synthesis of green silver nanoparticles and their antimicrobial pattern against different human pathogens. GCMS analysis revealed the presence of 51 chemical compounds which were present in the methanol extract of plant sample based on the retention time (8.385-47.395) with the major compound been 3-Methyloctadecane. The...

Author(s):Ruban P and A. Saraswathi

Article in Press

Perception towards Genetically Modified Organisms (GMOs) of Regulatory and Service Providers in Selected National Regional States of Ethiopia.

This descriptive research was conducted to obtain scientific information on the perception towards GMOs of regulatory bodies and service providers by administering questionnaires to randomly selected 405 respondents drawn from 5 regional states (Amhara, Afar, BenshangulGumuz, Somali, and Southern Nations Nationalities and Peoples) and 2 city administrations (Addis Ababa City administration and Dire Dawa City Council). The...

Author(s):Adugnaw Admas

Article in Press

Assessment of variability among Striga hermonthica populations in Sudan using SSR markers

Striga weed is considered to be the greatest biological constraint to food production in sub-Saharan Africa (SSA). Striga hermonthica is the most widespread among the species in the semi-arid tropical African zones. Seven populations of S. hermonthica were collected from five regions on sorghum and millet in Sudan and investigated with 12 microsatellite markers. Host specificity or geography may play important roles in...

Author(s):MOHAMMED ESHAG BABIKER, Kyalo Martina Kyalo, Yao Nasir Nasir

Article in Press

Novel extraction method and polymerase chain reaction amplification of crude microbial DNA from soil

A rapid, inexpensive and large-scale DNA extraction method involving minimal purification that is applicable to various soil/ microbe mixture types was developed in this study. Results of evaluation of the novel technique indicated that pooling of several genomic DNA extractions and polymerase chain reaction (PCR) amplicons will reduce variation among samples. Using the bead beating DNA extraction method described here,...

Author(s):Hamid Kheyrodin and Khosro Ghazvinian

Article in Press

PHENOTYPIC CHARACTERIZATION OF SELECTED KENYAN Catha edulis CULTIVARS BASED ON MORPHOLOGICAL TRAITS

Khat (Catha edulis Vahl) is an evergreen shrub habitually ingested for its euphoric and stimulatory effects. The crop is grown in the Middle East, Somalia, East Africa and Ethiopia. Its referred to as Miraa in Kenya while in Yemen it has several names like Qat, Kat, Kath, Gat, Chat and Tschat. It belongs to the sub-order Rosidae, family Celastraceae and characterized by astringent taste. Despite the daily use and...

Author(s):Loise N Ngari, Shadrack N Njagi, James K Kamau, Rose C Lagat, Amos M Musyoki, Beryl O Akoth,Festus Kioko, Zedekiah-A Okwany,Mathew P Ngugi

Article in Press

Multi-locations evaluation of sorghum (Sorghum bicolor L.) genotypes for grain yield and yield related traits at western Oromia, Ethiopia

A field experiment was conducted on twelve sorghum genotypes against standard checks at Haro Sabu Agricultural Research Center (HSARC) sub sites for three consecutive years (2016-2018) to evaluate high yielding, insect pest tolerant genotypes and to assess the impact of genotype by environmental interaction on grain yield and yield components across diverse growing environments of western Oromia. Eight agronomic traits and...

Author(s):Biru Alemu, Geleta Negash, Wekgari Raga, Dereje Abera

Article in Press

Genetic diversity of Biomphalaria pfeifferi in relation to susceptibility and resistance to Schistosoma mansoni

The host-parasite relationship in both the intermediate snail host and the definitive vertebrate host is complex and many questions remain to be answered regarding host-parasite interactions. Susceptibility and resistance of Biomphalaria snails to Schistosoma mansoni miracidia occur in different degrees using Random Amplified polymorphic DNA (RAPD). This work was carried out to determine what genes or gene products are...

Author(s):Lubna T. Karamalla and Ahmed Babiker

Article in Press

Genetic Diversity of Hot Pepper (Capsicum annuum) from Selected Areas of Ethiopia Using Inter Simple Sequence Repeats (ISSR) Marker

Hot pepper (Capsicum annuum) is the most important spice crop belonging to the Solanaceae family. Despite its economic importance, little research has been undertaken on genetic diversity of hot pepper germplasm and cultivars in Ethiopia. The aim of this study was to investigate the genetic diversity among the Ethiopian hot pepper germplasm collections using ISSR markers. Genetic diversity of 53 hot pepper (Capsicum...

Author(s):Molla Alebachew, Mulugeta Kebede and Tesfaye Kassahun

Article in Press

Isolation and In Vitro Antiplasmodial Activity of the Ethyl Acetate Extract of Alstonia boonie De Wild Leaves Extract

Bioactive compounds in plants have found a wide application in medicines due to their pharmacological or toxicological effects in man and animals. In vitro anti-plasmodial activity of the leaves of Alstonia boonei was studied to support its traditional use as a remedy for malaria. The ethanol extract from the plant was fractionated into ethyl acetate, chloroform and n-hexane fractions. These were subjected to in vitro...

Author(s):Antiplasmodial, Alstonia boonie, Isolation, Bioactive compounds

Article in Press

Screening for salinity tolerance among 30 rice (Oryza sativa L.) genotypes using microsatellite markers

Climate change causes increasing the salinity crisis of arable land in the world. It is crucial to develop salt tolerant genotypes that can maintain optimum yield levels. Therefore, the aim of this study was to discover prospective genotypes tolerant to salinity by using Microsatellites/Simple sequence repeats (SSR) primers. Selection for salinity tolerant genotypes of rice based on phenotypic performance alone is less...

Author(s):Aziza A. Aboulila, Ola A. Galal and M. F. M. El-SamahyKargbo S.S, Showemimo F.A, Akintokun P.O and Porbeni J.B.O

Article in Press

Biosurfactant, consortium, lipopeptide, exopolymer, hydrocarbon and crude oil

Biosurfactants were produced using Pseudomonas sp, A. vinelandii and a consortium of A. vinelandii and Pseudomonas species using crude oil as substrate. The result of the Bacterial Adhesion To Hydrocarbon (BATH) shows 18.81 ± 4.32 %, 3.79 ± 0.82 % and 10.52 ± 276% for Pseudomonas sp., A. vinelandii and a consortium (Pseudomonas sp. and A. vinelandii) respectively, while producing 1.03 ± 0.03, 0.08 ± 0.02 and 1.22 ± 0.03...

Author(s):OBINNA OJE, MARTINS OGUGUOFOR, IKECHUKWU N.E ONWURAH

Article in Press

The Effect of growth regulator in Micropropagation of tow Capsicum annuum L. Cultivars.

The application of modern biotechnology for improvement of pepper productivity requires an efficient in vitro plant regeneration protocol. In this study an experiment was carried out to examine the effects of different combinations of plant growth regulators on the in vitro micro propagation of tow genotypes of Capsicum annuum L., ( Z215, Y195) thus optimizing the protocol for in vitro micro propagation culturing of nodal...

Author(s):NOAMAN, ELNFISHI

Article in Press

Identification of bioactive compounds in Ocimum and Cymbopogon species used as grain protectant in North Western Nigeria and their bioactivity against Tribolium castaneum

Small-scale farmers of Kebbi State use a range of Ocimum (Scent plant) and cymbopogon (Lemongrass) plant species to protect their grain from insect infestation. This study aim at identifying from the range of plant species, the species and method of their preparation with bioactive compounds most effective against Tribolium castaneum. The different plant samples tested were either cultivated or collected from the wild,...

Author(s):ILIYASU MOHAMMEED UTONO

Article in Press

Imaging review from Anatomic to Molecular and Atomic Resolution scales

Imaging may be referred to as the ‘eyes of science’ as it provides scientists with highly informative multi-dimensional and multi-parameter data usually invisible to the naked eye. As instrumentation technologies and genetic engineering advances, it’s possible in modern times to observe and image highly dynamic biochemistry processes. This paper reviews PET (Positron Emission Tomography), MRS (Magnetic Resonance...

Author(s):Kamweru PK

Article in Press

Single Nucleotide Polymorphism (SNPs) in Indian Cervidae based on mitochondrial loci: A Wildlife Forensic Approach

India is the second largest mega biodiversity in the world, it sustains many species of animals and plant, among them, cervidae is the major mammal's group; currently, seven different cervidae are present in the Indian subcontinent. Last two decades, the population of this species declining continuously due to poaching, habitat distraction, and anthropogenic pressure. The wildlife crime is well known and it is the major...

Author(s):Kumar Ved

Page 1 of 3, showing 50 records out of 130 total, starting on record 1, ending on 50

< previous123