Oluwatoyin Adenike Fabiyi
@unilorin.edu.ng
Lecturer, Faculty of Agriculture
Lecturer, Faculty of Agriculture
University of Ilorin
RESEARCH, TEACHING, or OTHER INTERESTS
Plant Science, Renewable Energy, Sustainability and the Environment, Spectroscopy, Toxicology
Scopus Publications
Scopus Publications
Oluwatoyin Adenike Fabiyi, Olusoji Olusegun Adebisi, Sunday Olubusuyi Falore, and Abiodun Olufunmilayo Claudius-Cole
Springer Science and Business Media LLC
Oluwatoyin Adenike Fabiyi, Olusoji Olusegun Adebisi, Sunday Olubusuyi Falore, and Abiodun Olufunmilayo Claudius-Cole
Springer Science and Business Media LLC
Oluwatoyin Adenike Fabiyi and Gabriel Ademola Olatunji
Springer Science and Business Media LLC
Oluwatoyin Fabiyi, Agbaje Lateef, Evariste Bosco Gueguim-Kana, Lorika Selomi Beukes, Ntombozuko Matyumza, Tesleem Bello, and Gabriel Olatunji
Springer Science and Business Media LLC
Oluwatoyin Fabiyi, Agbaje Lateef, Evariste Bosco Gueguim-Kana, Lorika Selomi Beukes, Ntombozuko Matyumza, Tesleem Bello, and Gabriel Olatunji
Springer Science and Business Media LLC
Oluwatoyin Adenike Fabiyi
Walter de Gruyter GmbH
Abstract Meloidogyne incognita is a common pest of carrots grown in hot climates. Existing control methods using synthetic nematicides are associated with contamination and intoxication of plants and the production environment. Recent research trends in pest control include investigations on the use of plant materials. In the present study, Blumea aurita compost, powder, and essential oil were assessed in comparison with Furadan for mitigating the effects of M. incognita on carrot plants. The essential oil was applied at 10, 20, and 30 mg·ml−1, while the compost and powder were applied at 1.0, 2.0, and 3.0 kg·m−2. The characteristic components of B. aurita essential oil were trans-α-bergamotene (18.04%), caryophyllene epoxide (15.01%), eugenol (11.59%), carvacrol (11.02%), geraniol (10.13%), 1-octen-3-ol (7.03%), 1,8-cineole (7.02%), δ-elemene (7.01%), and α-copaene (6.20%). The reproduction of M. incognita on carrot roots and the level of M. incognita soil infestation were significantly reduced by B. aurita compost and essential oil. The effect of B. aurita compost was comparable to that of the standard nematicide – Furadan. Therefore, materials derived from B. aurita may prove to be an interesting alternative in inhibiting M. incognita populations.
Oluwatoyin Adenike Fabiyi and Gabriel Ademola Olatunji
Springer Science and Business Media LLC
Olaolu Fadeyi, Oluwatoyin Fabiyi, Tesleem Bello, and Gabriel Olatunji
ResearchersLinks Ltd
O.A. Fabiyi, T.T. Bello, G. Liébanas, I. Clavero-Camacho, C. Cantalapiedra-Navarrete, A. Archidona-Yuste, J.E. Palomares-Rius, D.J. Hunt, and P. Castillo
Cambridge University Press (CUP)
Abstract Parasitic nematodes of millipedes from Nigeria are molecularly characterized for the first time. During nematode surveys on live giant African millipedes from several localities in Nigeria, 4 species of rhigonematids were identified by application of integrative taxonomical approaches (morpho-anatomy and molecular markers), including Brumptaemilius sp., Gilsonema gabonensis, Obainia pachnephorus, and Rhigonema disparovis. The results of morphometric and molecular analyses of D2-D3 28S, ITS, partial 18S rRNA, and cytochrome oxidase c subunit 1 (COI) gene sequences further characterized the rhigonematid species, and clearly separated them from other related species. Phylogenetic relationships based on 28S and 18S rRNA genes suggest that genera within Ransomnematoidea (Ransomnema, Heth, Carnoya, Brumptaemilius, Cattiena, Insulanema, Gilsonema) and Rhigonematoidea (Rhigonema, Obainia, Xystrognathus, Trachyglossoides, Ichthyocephaloides) clustered rather closer than could be expected in view of their morphological differences. Phylogenetic relationships based on ITS and COI are congruent with those of other ribosomal genes; however, they are not conclusive due to the scarcity of available sequences of these genes for these genera in NCBI.
O. A. Fabiyi, O. O. Adebisi, S. O Falore, T. T. Bello, and G. A. Olatunji
Springer Science and Business Media LLC
Nusirat Aderinsola Sadiku, Oluwatoyin Adenike Fabiyi, and Tesleem Taye Bello
ResearchersLinks Ltd
Oluwatoyin Adenike Fabiyi
CRC Press
Oluwatoyin Adenike Fabiyi
CRC Press
Yao A. Kolombia and Oluwatoyin A. Fabiyi
Elsevier
Oluwatoyin Adenike Fabiyi, Mariam Temitope Baker, and Gabriel Ademola Olatunji
ResearchersLinks Ltd
Oluwatoyin Adenike Fabiyi and Olatunji Gabriel Ademola Olatunji
Diva Enterprises Private Limited
Oluwatoyin Adenike Fabiyi
Sri Lanka Journals Online (JOL)
Purpose: Cabbage, an indispensable vegetable is often plagued by Meloidogyne incognita, a circumstance which lessens yield. Extracts of Khaya senegalensis and Adansonia digitata were appraised for possible nematicidal activity to check the menace of M. incognita sequel to the undesirable effect of synthetic nematicides in the environment. Research Method: Leaf materials were extracted in organic and aqueous extracts. The extracts were used as soil admix at 0, 150, 200 and 250 g/Kg soil, in a randomized complete block design experiment. Carbofuran a synthetic nematicide served as positive check for the extracts. Data was taken on vegetative growth, yield and nematode population. Lethality of the various extracts to brine shrimp larvae was also assessed. Findings: The aqueous extract was not as productive as the ethanol and methanol extracts. A. digitata extracts demonstrated weak nematicidal activity as against what was observed in cabbage plants treated with K. senegalensis extracts. Cytotoxicity evaluation of the organic and aqueous extracts of A. digitata indicated that the methanol extract expressed weak cytotoxicity (500 µg/ml - 1000 µg/ml), while the aqueous and ethanol extracts were not toxic to the brine shrimps (LC 50 >1000µg/mL). K. senegalensis extracts were active against brine shrimp larvae with LC 50 values <1000µg/mL The methanol and ethanol extracts demonstrated strong cytotoxicity with LC 50 values <100µg/ml. Extracts from K. senegalensis significantly (p=0.05) increased the vegetative growth of cabbage plants. Originality/ Value: These results signify that the species have a probable use in the bio-pesticide industry, without any toxicity as the synthetics.
Oluwatoyin Adenike Fabiyi
Journal of Solid Waste Technology and Management
Meloidogyne incognita is known to be a foremost pest of carrot in Nigeria. It is a component to appraise in carrot production. Application of synthetic nematicides as control measures is unsafe to humans and detrimental to the environment. Development of safe control process is worthwhile. Effect of three peels (potato, pineapple, orange) and composited soil from municipal refuse dump site was assessed and compared with carbofuran a standard synthetic nematicide at four different doses (0, 1500, 2000, 2500g and 2.0kg/a. i/ha, 1.5kg/a. i/ha, 1.0kg/a. i/ha and 0kg/a. i/ha for carbofuran) on carrot plants. The concentrations of heavy metals like Cd, Pb, Ni, Cu, Cr, Mn, Zn and Fe in the composited soil was determined with Atomic Absorption Spectrophotometer (AAS). Experimental pots were inoculated with approximately 2000 M. incognita juveniles, in a randomized complete block design experiment. The composited municipal refuse soil was analysed for the presence of fungi and bacteria using molecular methods based on 16S rRNA gene sequencing. Reproduction and multiplication of M. incognita was significantly (p<0.05) low with all the treatment materials. Best inhibitory effect was observed in the soil of carrot plants treated with composited soil which had 49 nematode populations at harvest rather than 4606 recorded in untreated plants. Equally, heavier carrots were harvested in plants administered with composited soil (1309.6 gram), while the control plants had poor weight (312.7 gram). Performance of each waste material was quantity dependent. Gene sequencing revealed the presence of Pseudomonas alcaligenes strain ATCC 14909, P. putida strain ATCC 12633, P. aeruginosa strain ATCC 10145, Pseudomonas stutzeri NBRC 14165, Acinetobacter venetianus ATCC 31012, Enterobacter cloacae ATCC 130047, Streptomyces spp B7-3TC02, Bacillus subtilis NBRC 13719, Aspergillus niger strain MPVCT 158, Penicillium georgiense strain EV 24 and Rhizopus oryzae strain ATCC 20344, which are beneficial soil microorganisms. The metal concentration analysis of the composited municipal refuse dump soil exhibited low concentrations of heavy metals which ranges from 0.002-1.03 mg/kg with Zinc (Zn) having the highest concentration. The waste materials are cheap and ecofriendly option that can be adopted as soil amendment in M. incognita infested fields to significantly boost yield in carrot production and reduce reliance on mineral fertilizer. The peels, as well as composited municipal refuse dump soil can be used to improve soil properties and substitute lost nutrients to enhance crop production, and at the same time mitigate the environmental consequences of inappropriate waste disposal problems in Nigeria.
O. A. Fabiyi, M. T. Baker, A. O. Claudius-Cole, R. O. Alabi, and G. A. Olatunji
Springer Science and Business Media LLC
Olufunmilola Adunni Abiodun, Adegbola Oladele Dauda, Oluwatoyin Adenike Fabiyi, and Fadilat Modupeola Akintayo
Springer International Publishing
Sita Thapa, Elisabeth Darling, Emilie Cole, Kristin Poley, and Marisol Quintanilla
Walter de Gruyter GmbH
Abstract Plant-parasitic nematodes (PPNs) can cause substantial economic yield losses to many agronomic crops in the United States. A regional-scale survey was completed across 20 counties to determine PPNs prevalence in Michigan corn and how factors such as soil type, tillage, irrigation, and cropping systems influence their distribution. Ten different major genera of PPNs were identified in Michigan corn fields: Longidorus (needle), Helicotylenchus (spiral), Pratylenchus (lesion), Meloidogyne (root-knot), Heterodera (cyst), Hoplolaimus (lance), Tylenchorhynchus or Merlinius (stunt), Paratylenchus (pin), Criconemella (ring), and Xiphinema (dagger). No significant differences among different categories of tillage for lesion, stunt, or needle nematode prevalence was detected. Lesion nematodes were most prevalent in muck soil, while stunt nematode prevalence was significantly affected by the soil type. Needle nematodes were least abundant in irrigated soils and in contrast, stunt nematodes were higher in non-irrigated soils. Spiral nematodes were the most common PPNs in Michigan corn in all cropping systems. These findings will be helpful in planning future nematode studies in Michigan and in developing and evaluating corn nematode management strategies.
Oluwatoyin Adenike Fabiyi
ResearchersLinks Ltd