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Jimoh, M, Okunlola G, Wahab A, Oseni OM, Rufai A.  2021.  Proximate and mineral analysis and antinutrient and antimicrobial properties of Talinum triangulare (Talinaceae) and Celosia argentea (Amaranthaceae), 2021/01/22. 26:449-455. Abstract

Talinum triangulare and Celosia argentea are two common underutilized leafy vegetables in Nigeria. This work was carried out to determine the mineral, proximate, and antinutritional contents of the plants, which were estimated by standard methods. Antibacterial activity of the leaf aqueous and ethanolic extracts was also evaluated against some bacteria. Results obtained from the study have shown that the two plants had constituents that show them as a good source of nutritional and medicinal benefits.

Oseni, OM, Dada O, Okunlola G, Olowolaju E, Akinropo M, Akinjide A, Akinlabi A.  2020.  Phytoremediation technology, plant response to environmental contaminants and the need for soil augmentation, 2020/10/29. 12:486-499. Abstract

Contaminants in the environment occur naturally and/or through anthropogenic activities. These contaminants become a threat to all living organisms because of their increased in the environment and non-biodegradable nature. In order to protect the environment from these contamination, various techniques have been developed, and among them is phytoremediation. Phytoremediation is a technology that employed plant species for reclaiming contaminated soil, air, and water. This technology has been widely accepted in recent times, because of its low cost and environmentally friendly. In addition, augmentation of the contaminated soil, either chemo augmentation or bioaugmentation, have been used for the effective absorption of some of these contaminants. When the plants are grown in the contaminated sites, the contaminant in the soil maybe removed, immobilized, degraded or volatized. These phytoremediation technologies are: phytoextraction, phytovolatilization, rhizofiltration, phyto-stimulation, phyto-stabilization and phytodegradation. Based on the phytoremediation potentials of plants, pollutants are being removed from the environment thereby keeping the environment safe.

Oseni, OM, Nailwal T, Pande V.  2020.  Momordica charantia L. (cucurbitaceae), a vegetable of utmost nutritive and pharmacological importance, 2020/07/08. :1-21. Abstract

Traditional medicine has been playing a crucial role in developing countries as it provides primary health care needs for a large majority of the population. This article reviews the current research on the phytochemicals, nutritive value, ethnobotanical uses, and pharmacological importance of Momordica charantia. The phytochemical analysis of this plant revealed that the plant is rich in nutrients and phytochemicals which are of great benefit. Also, the plant is among the plants popularly used in traditional medicine and has been proved to be effective. The biological activities of the plants had been carried out by many authors and their results have been documented. In addition, among the biological activities of these plant are antidiabetic, antiulcer, anti-inflammatory, antioxidant, hypolipidemic, antibacterial, antimicrobial, antimalaria, antiviral, anticancer and antifertility. Moreover, some bioactive constituents such as alkaloids, tannins, flavonoids, saponins, glycosides, sterols, mucilages, and oleanolic acids are significantly present in the plant. It is now obvious that Momordica chlarantia can help as a natural source product in the treatment of many diseases particularly diabetes, cancers, cardiac, liver and kidney, malaria, and skin infection when properly administered.

Oseni, OM, Nailwal T, Pande V.  2020.  Germination of Mansonia altissima (A. Chev.) A. Chev. var. altissima: an endangered valuable timber species in Africa, 2020/02/07. 42:e47448. Abstract

The in vitro seed germination which results in the production of disease-free seedlings and greenhouse germination of the seeds of Mansonia altissima was investigated in order to establish a better way of germination of the timber species. Five levels of GA3 treatment were used in in vitro germination with three replicate and two seeds were inoculated in each of the jam bottle. Whereas, in greenhouse germination, five levels of different treatments were used, replicated three times and each Petri plate contained 15 seeds. The experiment was repeated twice and the data from each experiment was put together and used for the statistical analysis. The results showed that seeds germination occurred eight days after inoculation in in vitro but in the case of greenhouse germination, it took only five days. For in vitro rapid germination of Mansonia altissima, the MS medium should be supplemented with 1.0 μm of GA3. Equally, in greenhouse germination, the seeds need to be soaked in 1.0 mM of GA3 for 24 hours. Alternatively, in the absence of GA3, the seeds can be soaked in water for 24 hours before broadcasting the seeds on the seedbed for germination, as this will help to identify nonviable seeds.

Okunlola, G, Oseni OM, Ayokun-nun A.  2018.  Phytoremediation Potential of Chromolaena odorata (L.) King and Robinson (Asteraceae) and Sida acuta Burm. f. (Malvaceae) Grown in lead-Polluted Soils, 2018/09/04. 11 Abstract

Heavy metals are non-biodegradable substances that can become deleterious and toxic if accumulated in higher concentrations in the environment. Translocation of nutrients from the plant to the soil is one of the key processes of human exposure to heavy metals through the food chain. The abilities of Chromolaena odorata and Sida acuta to bioaccumulate and translocate lead (Pb) are studied here under organic fertilizer amendment in order to determine their phytoremediation potentials. The experiment was a factorial combination of Lead at five levels of concentrations in a completely randomized design, replicated three times with two plants and two levels of an organic fertilizer. Seedlings of uniform height were transplanted from the nursery to experimental pots and were grown for ten weeks. The plants were then harvested and dried for the analysis of Pb accumulation both in the soil and the plant tissues using AAS. The results showed that the organic fertilizer enhanced the bioavailability of Pb because all the tested plants displayed a higher absorption of Pb. Significant concentrations of lead were easily taken up by the plants from the soil and were accumulated in the root, while only a small fraction was translocated upwards to the shoots. The two plants exhibited characteristics of a phytostabilizer because their transfer factors were less than one. The uptake of Pb observed in these plants were in the order of: Sida acuta > Chromolaena odorata, so Sida acuta remediates the soil better than Chromolaena odorata.

Ayokun-nun, A, Oseni OM, olaniran temi Oladipo, Adams Y, Mukaila Y, Ajao A.  2018.  Clerodendrum volubile P. Beauv (Lamiaceae), an underutilized indigenous vegetable of utmost nutritive and pharmacological importance, 2018/07/01. 7 Abstract

Clerodendrum volubile is an underutilized vegetable native to West Africa most especially Nigeria. The plant is used traditionally in the treatment of arthritis, diabetes, dropsy, gout rheumatism, dropsy, swellings, oedema, and analgesic. The ethnopharmacological potential of C. volubile through its phytochemistry, biological activities, and proximate analysis was reviewed for the first time. Published articles on C. volubile were sourced from scientific data bases such as Google Scholar, Medicine, PubMed, Science Direct, and Scopus. C. volubile contains appreciable quantity of phytochemicals and compounds such as ajugoside, pectolinarigenin, protocatechuic acid, biochanin, and 5, 7,4′-Trimethoxykaempferol. It also elicited wide range of biological activities such as antidiabetic, antihyperlipidemic, anti-hypertension, antioxidant, anticancer, anti-inflammatory, hepatoprotective, antimicrobial, and analgesic. C. volubile is a potential pharmaceutical agent especially in the treatment of cancer due to the ability of its extracts to scavenge reactive oxygen species. Future research should focus on isolation of bioactive compounds responsible for elicited activities and mechanism of action of the bioactivities through in vivo studies. Keywords: Anticancer, Bioactive compounds, Clerodendron volubile, Underutilize vegetable

Okunlola, G, Adelusi A, Olowolaju E, Oseni OM, Akingboye G.  2015.  Effect of water stress on the growth and some yield parameters of Solanum lycopersicum L., 2015/12/09. 9:1755. Abstract

An investigation aimed at a better understanding of the normal water requirement for the optimum growth and yield of Solanum lycopersicum was carried out. Seeds of S. lycopersicum were sown in 32 plastic pots and after germination the seedlings were allowed to grow for a period of 2 weeks within which they were well watered and kept under optimum conditions of the environment. The plants were then subjected to different levels of water applications. Plants in the first group (W1) were supplied with 200 ml of water everyday; plants in the second group (W2) were supplied with 200 ml of water once every 3 days; plants in the third group (W3) were supplied with 200 ml of water once in every 5 days while the fourth group (W4) were supplied with 200 ml of water once in every 10 days. The results obtained showed that water stress caused a significant (p<0.05) reduction in some of the morphological parameters studied. Some yield parameters were unaffected by the water stress.© 2015 International Formulae Group. All rights reserved.

Oseni, OM, Dada O, Adelusi A.  2015.  Bioaccumulation Potentials of Momordica charantia L. Medicinal Plant Grown in Lead Polluted Soil under Organic Fertilizer Amendment, 2015/09/21. 7 Abstract

This study investigated bioaccumulation factors and translocation factors of lead (Pb) by M. charantia so as to ascertain the bioaccumulation potentials of this medicinal plant. The elemental deposition of Pb were also assessed in order to compare the concentration of Pb present in plant tissues with the maximum permissible limits of 10 ppm recommended by WHO (1998, 2007). The experiment was a factorial combination of one heavy metal (Pb) at five levels of concentrations (0, 200, 400, 800 and 1,000 ppm) in a completely randomized design, replicated three times, with one medicinal plant species and two levels (0 and 9.4 g) of organic fertilizer (OBD- Plus). The seedlings were transplanted from nursery to experimental pots at the rate of one seedling per pot and grown for 10 weeks, after which the plants were harvested and dried for the analysis of Pb concentration both in soil and plant tissues using Atomic Absorption Spectrophotometry (AAS). The highest bioaccumulation factor for roots was 0.42 under fertilizer amendment, whereas the highest bioaccumulation factor for shoots was 0.26 under the same treatment. The highest transfer factor of M. charantia was 0.6. The results showed that M. charantia is a good phytostabilizer of Pb component. The highest lead deposition in the roots, which was 40% higher than in the shoots concentration, was above the safe limit; therefore this might pose health risks to human if consumed as herbal medicine.