Tesleem Bello (Ph.D) | Federal College Of Education, Osiele, Abeokuta (original) (raw)
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Papers by Tesleem Bello (Ph.D)
Pakistan journal of nematology, 2024
CRC Press eBooks, Jan 29, 2024
Pakistan Journal of Nematology, Dec 31, 2022
| Pyroligneous Liquors are obtained from diverse biomasses and have been found to contain importa... more | Pyroligneous Liquors are obtained from diverse biomasses and have been found to contain important biologically active components with high phenolic, carbonyl and organic acid contents which have several pest control properties. Bamboo Pyroligneous Liquor (BPL) has proved effective in controlling several insect pests of many crops but its nematicidal potential is yet to be fully determined. We, therefore, investigated the nematicidal activities of Bamboo Pyroligneous Liquor in managing root-knot nematodes of Lactuca sativa in greenhouse trials. Bambusa vulgaris biomass was carbonised at 500 o C in a locally fabricated pyrolizer with automatic temperature control to obtain the Bamboo Pyroligneous Liquor (BPL). Two weeks old lettuce plants were inoculated with 1,000 juveniles of Meloidogyne incognita. BPL was applied at three concentrations of 100, 200 and 400 mg/ml. Results revealed that nematode infected lettuce plants treated with BPL recorded significantly higher (P< 0.05) mean number of leaves, plant height and yield compared to the untreated control. In addition, BPL at 400 mg/ml had substantially higher nematicidal effects on both the soil and root population of nematodes of L. sativa and compared favourably with the carbofuran treatments. We concluded that BPL could serve as a very potent eco-friendly alternative to synthetic nematicides in managing M. incognita of lettuce.
European Journal of Plant Pathology, Dec 4, 2023
Journal of Helminthology, 2023
Parasitic nematodes of millipedes from Nigeria are molecularly characterized for the first time. ... more 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. Material and methods Nematode sampling and morphological characterization During the wet season of 2021, eight samples of millipedes were collected from several localities in southwestern Nigeria (Table 1). Millipede specimens were identified as belonging to the genera Archispirostreptus and Spirostreptus (Table 1). Millipedes were maintained alive in plastic jars until arriving at the laboratory. In the laboratory, millipedes were dissected, with the gut being removed and
Nematology, Sep 8, 2020
A new species of the genus Aporcelaimellus, collected in a watermelon field in Nigeria is describ... more A new species of the genus Aporcelaimellus, collected in a watermelon field in Nigeria is described, including its morphological and molecular (D2-D3 28S-rDNA, 18r-DNA) characterisation. Aporcelaimellus nigeriensis sp. n. is distinguishable by its 2.76-3.55 mm length, very coarse ventral body pores, lip region offset by deep constriction and 24-27 µm broad, odontostyle 30-36 µm long at its dorsal side, neck 648-779 µm long, pharyngeal expansion occupying 54-60% of total neck length, uterus 300-473 µm or 2.1-3.2 body diameters long and tripartite, V = 49-54, tail short and convex conoid (27-41 µm, c = 72-115, c' = 0.5-0.7), spicules 108-137 µm long, and 9-10 µm spaced ventromedian supplements with hiatus. LSU analysis revealed a close similarity between A. nigeriensis sp. n. and other Aporcelaimellus species, which questions, once more, the monophyly of Aporcelaimidae. SSU phylogenetic tree analysis was not able to resolve the relationship between the new species and other closely related species.
Mycologia, 2005
In the hippocampus, a functional role of dopamine D1 receptors (D1R) in synaptic plasticity and m... more In the hippocampus, a functional role of dopamine D1 receptors (D1R) in synaptic plasticity and memory processes has been suggested by electrophysiological and pharmacological studies. However, comprehension of their function remains elusive due to the lack of knowledge on the precise localization of D1R expression among the diversity of interneuron populations. Using BAC transgenic mice expressing enhanced green fluorescent protein under the control of D1R promoter, we examined the molecular identity of D1R-containing neurons within the CA1 subfield of the dorsal hippocampus. In agreement with previous findings, our analysis revealed that these neurons are essentially GABAergic interneurons, which express several neurochemical markers, including calcium-binding proteins, neuropeptides, and receptors among others. Finally, by using different tools comprising cell typespecific isolation of mRNAs bound to tagged-ribosomes, we provide solid data indicating that D1R is present in a large proportion of interneurons expressing dopamine D2 receptors. Altogether, our study indicates that D1Rs are expressed by different classes of interneurons in all layers examined and not by pyramidal cells, suggesting that CA1 D1R mostly acts via modulation of GABAergic interneurons.
Pakistan journal of nematology, 2024
CRC Press eBooks, Jan 29, 2024
Pakistan Journal of Nematology, Dec 31, 2022
| Pyroligneous Liquors are obtained from diverse biomasses and have been found to contain importa... more | Pyroligneous Liquors are obtained from diverse biomasses and have been found to contain important biologically active components with high phenolic, carbonyl and organic acid contents which have several pest control properties. Bamboo Pyroligneous Liquor (BPL) has proved effective in controlling several insect pests of many crops but its nematicidal potential is yet to be fully determined. We, therefore, investigated the nematicidal activities of Bamboo Pyroligneous Liquor in managing root-knot nematodes of Lactuca sativa in greenhouse trials. Bambusa vulgaris biomass was carbonised at 500 o C in a locally fabricated pyrolizer with automatic temperature control to obtain the Bamboo Pyroligneous Liquor (BPL). Two weeks old lettuce plants were inoculated with 1,000 juveniles of Meloidogyne incognita. BPL was applied at three concentrations of 100, 200 and 400 mg/ml. Results revealed that nematode infected lettuce plants treated with BPL recorded significantly higher (P< 0.05) mean number of leaves, plant height and yield compared to the untreated control. In addition, BPL at 400 mg/ml had substantially higher nematicidal effects on both the soil and root population of nematodes of L. sativa and compared favourably with the carbofuran treatments. We concluded that BPL could serve as a very potent eco-friendly alternative to synthetic nematicides in managing M. incognita of lettuce.
European Journal of Plant Pathology, Dec 4, 2023
Journal of Helminthology, 2023
Parasitic nematodes of millipedes from Nigeria are molecularly characterized for the first time. ... more 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. Material and methods Nematode sampling and morphological characterization During the wet season of 2021, eight samples of millipedes were collected from several localities in southwestern Nigeria (Table 1). Millipede specimens were identified as belonging to the genera Archispirostreptus and Spirostreptus (Table 1). Millipedes were maintained alive in plastic jars until arriving at the laboratory. In the laboratory, millipedes were dissected, with the gut being removed and
Nematology, Sep 8, 2020
A new species of the genus Aporcelaimellus, collected in a watermelon field in Nigeria is describ... more A new species of the genus Aporcelaimellus, collected in a watermelon field in Nigeria is described, including its morphological and molecular (D2-D3 28S-rDNA, 18r-DNA) characterisation. Aporcelaimellus nigeriensis sp. n. is distinguishable by its 2.76-3.55 mm length, very coarse ventral body pores, lip region offset by deep constriction and 24-27 µm broad, odontostyle 30-36 µm long at its dorsal side, neck 648-779 µm long, pharyngeal expansion occupying 54-60% of total neck length, uterus 300-473 µm or 2.1-3.2 body diameters long and tripartite, V = 49-54, tail short and convex conoid (27-41 µm, c = 72-115, c' = 0.5-0.7), spicules 108-137 µm long, and 9-10 µm spaced ventromedian supplements with hiatus. LSU analysis revealed a close similarity between A. nigeriensis sp. n. and other Aporcelaimellus species, which questions, once more, the monophyly of Aporcelaimidae. SSU phylogenetic tree analysis was not able to resolve the relationship between the new species and other closely related species.
Mycologia, 2005
In the hippocampus, a functional role of dopamine D1 receptors (D1R) in synaptic plasticity and m... more In the hippocampus, a functional role of dopamine D1 receptors (D1R) in synaptic plasticity and memory processes has been suggested by electrophysiological and pharmacological studies. However, comprehension of their function remains elusive due to the lack of knowledge on the precise localization of D1R expression among the diversity of interneuron populations. Using BAC transgenic mice expressing enhanced green fluorescent protein under the control of D1R promoter, we examined the molecular identity of D1R-containing neurons within the CA1 subfield of the dorsal hippocampus. In agreement with previous findings, our analysis revealed that these neurons are essentially GABAergic interneurons, which express several neurochemical markers, including calcium-binding proteins, neuropeptides, and receptors among others. Finally, by using different tools comprising cell typespecific isolation of mRNAs bound to tagged-ribosomes, we provide solid data indicating that D1R is present in a large proportion of interneurons expressing dopamine D2 receptors. Altogether, our study indicates that D1Rs are expressed by different classes of interneurons in all layers examined and not by pyramidal cells, suggesting that CA1 D1R mostly acts via modulation of GABAergic interneurons.