Tag Archives: Plants

Determination of the Presence and Level of Heavy Metals in Soils of Automobile Workshops in Awka, Anambra State (Published)

This study determined the presence and levels of heavy metals in automobile workshop soils in Awka Anambra state. Soil samples were collected from four automobile workshops. The soil samples were analysed for heavy metal contents; Lead (Pb), Manganese (Mn), Zinc (Zn), Nickel (Ni), Copper (Cu), Chromium (Cr), Mercury (Hg), and Iron (Fe). The soil samples were digested and the filtrate subjected to quantitative analysis using Atomic Absorption Spectroscopy (AAS). One-way Anova, and one sample t-test, were used to test the hypotheses postulated. The results indicated the presence of all the metals under consideration in the soil samples. The concentrations of the metals in the soils of the automobile workshops were compared with NESREA (National Environmental Standards and Regulations Enforcement Agency) standard and the result showed that Cu in sample A was greater than the standard while others were below it; Cr in sample D was lower than the standard while others were above it; metal contents of Zn, Pb, Cd, and Ni in all samples were below the standard while Fe and Mn limits were not specified by NESREA. The study concluded that the activities of automobile workshops contaminate soil with heavy metals which automatically have direct and indirect effect man as it can be transported through the food chain. It is hence recommended that: regulatory bodies be set up to monitor the activities of automobile workshops and policies be enacted whereby automobile workshops should be located very far from residential areas. Further research should be carried out to ascertain the effects of those heavy metals on plants, groundwater, and human health.

 

Keywords: Automobile, Heavy Metals, Plants, presence and level, soils

Assessment of the Effects of Plants on Market Environments in Garki of Abuja as an Avenue to Improve Architectural Practices in Nigeria (Published)

The quality of architectural practices in Nigeria with regards to the use of plants for landscape in market buildings is not satisfactory when it is compared with international standards and this is a problem. To reduce this problem, a market in Garki in Abuja was studied with the aim of assessing the effects of plants in its environs, in order to generate guidelines from the research feedbacks to improve architectural practices with regards to the use of plants in the design of Nigerian markets. There are seven regional built-up markets under the control of Federal Capital Territory Markets Management Committee. Out of these markets, a market in Garki was studied via purposive sampling method. The instruments used for the collection of the primary data are questionnaires, focus group discussion and observation schedule. The secondary data were obtained from the review of relevant literature. Among the research findings are: most of the market buildings have no plants for landscape architecture; the use of personal electric power generators for artificial cooling and ventilation due to inadequate circulation of fresh air from plants in and around the market buildings causes fire outbreaks in the market. Among the generated guidelines are: it must be ensured by the Architects that all the market buildings should have plants for landscape architecture at the design stage; however, markets must have general electricity generator houses to minimise the use of personal electric power generators, in order to stop fire outbreaks as a result of their uses for artificial cooling and ventilation.

 

Keywords: Nigeria, Plants, architectural practices, environs, markets

Antibacterial Effect of Gongronema Latifolium Leaf Extracts On Selected Gram Positive and Negative Clinical Bacterial Isolates (Published)

This work was aimed at assaying the in-vitro effect of aqueous and ethanolic leaf extracts of Gongronema latifolium on Pseudomonas aeruginosa, Staphylococcus aureus, Klebsiella pneumoniae and Escherichia coli. Six (6) milimetre sterile discs were impregnated with the aqueous and ethanolic extracts at different concentrations ranging from 6.25mg/mL to 100mg/mL. The test organisms were spread evenly on Mueller Hinton agar plate and the discs were aseptically placed on them. The sensitivity plates were incubated at 37ºC for 24 hours. All the test organisms showed sensitivity to both aqueous and ethanolic leaf extracts of Gongronema latifolium. The zones of inhibition were concentration dependent, ranging from 2.0mm to 10.8mm for aqueous extract and 2.0mm to 8.3mm for the ethanolic extract. Comparison of the zones of inhibition produced by the two extracts showed that there is no statistical difference (P > 0.05) between aqueous and ethanolic extracts. Staphylococcus aureus, Escherichia coli and Klebsiella pneumoniae had Minimum inhibitory concentration (MIC) of 6.25mg/mL, while Pseudomonas aeruginosa had MIC of 25mg/mL for the aqueous extract. The MIC was 3.125mg/mL, 6.25mg/mL, 6.25mg/mL and 25mg/mL for S. aureus, E. coli, K. pneumoniae and P. aeruginosa, respectively for the ethanolic extract. Gongronema latifolium extracts were also bactericidal in action. S. aureus, E. coli and P. aeruginosa all had Minimum bactericidal concentration (MBC) of 6.25mg/mL, while K. pneumoniae had MBC of 25mg/mL for the aqueous extract, while for the ethanolic extract, S. aureus, E. coli, K. pneumoniae and P. aeruginosa had MBC of 12.5mg/mL, 12.5mg/mL, 6.25mg/mL and 3.125mg/mL respectively. The data obtained from the study indicated that both the aqueous and ethanolic leaf extracts of Gongronema latifolium possess antibacterial properties. Therefore, the pharmaceutical industries should consider its usage for the production of novel antibiotics.

Keywords: : Antibiotic, Plants, Pseudomonas aeruginosa, Resistance, medicinal

Ethnomedicinal Assets of Plants Collected From Nasarawa State, North Central Nigeria (Published)

An ethno-medicinal survey of plants used in treating various diseases and ailments was carried out in the study area of Nasarawa State, North Central Nigeria to obtain information on their uses and potentials. The ethno-medicinal survey was administered through structured questionnaires among local inhabitants from areas with high plant density and diversity within the various Local Government Areas of the State. A total of 82 (Eighty two) plant species belonging to 43 (Forty Three) families were found to be useful in treatment of various ailments such as diabetes, measles, fever, asthma, jaundice, pneumonia, sexually transmitted diseases(STDs), aches, diarrhea, cough, arthritis, yellow fever, typhoid, erectile dysfunction and excessive bleeding. Different parts of the plant such as the roots, leaves and stems are used in preparing herbal remedies which could be from dry or freshly collected plants. The main methods of preparation are decoction or infusion, while in some cases the plant parts used are consumed directly. Residents in the study areas find the herbal remedy cheaper and more accessible and claimed that there are no side effects compared to orthodox medicine. This study has confirmed the need towards the conscious conservation of plant genetic resources in order to ensure sustained access to these ethno-medicinal plant materials.

Keywords: Ethnomedicinal Assets, Nigeria, Plants, medicinal plants

PLANT BIODIVERSITY OF NIGERIA AND OUR RELIGIONS AND CULTURES IN A CHANGING WORLD (Published)

The plants constitute a major component of the planet earth, which all living things need to sustain their life. The early man being limited in all forms of endowments of humankind, made very little use of these plants. He therefore maintained a stable equilibrium with them. The modern man (Homo sapiens), with his endowments, has asserted himself over other living and non- living things and is making use of the plants in diverse ways. These diverse ways, are in addition to a number of other benefits other living things including human beings, derive from the plants. This paper dwells on the services to which humankind has put the plants in the diverse religions and culture of people in Nigeria. The paper besides reviewing the diverse roles of plants in diverse religions and cultures, also discusses the changes that are now being experienced in the interactions of humankind with the plants. Nigeria is part of the African region, where biodiversity is claimed to be concentrated. It therefore behoves the people of Nigeria, to conserve the plants, so that their sustainability, can be assured.

Keywords: Cultures, Humankind., Plants, Religions, West Africa, Yoruba People.

PLANT BIODIVERSITY OF NIGERIA AND OUR RELIGIONS AND CULTURES IN A CHANGING WORLD (Review Completed - Accepted)

The plants constitute a major component of the planet earth, which all living things need to sustain their life. The early man being limited in all forms of endowments of humankind, made very little use of these plants. He therefore maintained a stable equilibrium with them. The modern man (Homo sapiens), with his endowments, has asserted himself over other living and non living things and is making use of the plants in diverse ways. These diverse ways, are in addition to a number of other benefits other living things including human beings, derive from the plants. This paper dwells on the services to which humankind has put the plants in the diverse religions and culture of people in Nigeria. The paper besides reviewing the diverse roles of plants in diverse religions and cultures, also discusses the changes that are now being experienced in the interactions of humankind with the plants. Nigeria is part of the African region, where biodiversity is claimed to be concentrated. It therefore behoves the people of Nigeria, to conserve the plants, so that their sustainability, can be assured.

Keywords: Cultures, Humankind., Plants, Religions, West Africa, Yoruba People.