Abstract
This study investigated the ability of Penicillium sp. to bio-remediate spent engine oil contaminated soil both in vitro and in vivo . In the in vitro assay, mycelium of a seven day old culture of Penicillium sp . grown on Sabouraud Dextrose Agar (SDA) was punched out using a 0.5mm Cork borer and inoculated on the centre of Petri dishes containing the spent and unspent engine oil and incubated for seven days and daily reading of the mycelia growth obtained using a metre rule. For the in vivo assay, soil received 0 (control), 20/180, 40/360, 60/540, 80/720 and 100ml/900mm concentrations/treatments (inoculation with mycelium of Penicillium sp .). Seeds of Telfeira occidentalis was sown on the soil and assessed for growth performance (plant height, leaf area (using a metre rule) and leaf count (number of leaves) for 7, 14, 21 and 28 Days after Planting (DAP). Results of the in vitro assay showed a significant increase (p<0.05) in the growth diameter of Penicillium sp. relative to control. Results of the in vivo assay showed that spent engine oil had no significant effect (p<0.05) on the growth performance of T. occidentalis at 7, 14, 21 and 28 DAP and on fresh and dry weight (g) 28 DAP relative to control. After 28 days of plant growth, the added spent engine oil was no longer detected. The plant began producing pods 61 DAP. This study showed that Penicillium sp . can biodegrade hydrocarbons present in spent engine oil and as such is a good tool for bioremediation.
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Claims 6
Claim · model-written summary
Spent engine oil had no statistically significant effect on T. occidentalis plant height, leaf area, or leaf count at 7, 14, 21, and 28 DAP relative to control.
Verbatim
e0“Results of the in vivo assay showed that spent engine oil had no significant effect (p<0.05) on the growth performance of T. occidentalis at 7, 14, 21 and 28 DAP and on fresh and dry weight (g) 28 DAP relative to control.”
e1“Seeds of Telfeira occidentalis was sown on the soil and assessed for growth performance (plant height, leaf area (using a metre rule) and leaf count (number of leaves) for 7, 14, 21 and 28 Days after Planting (DAP).”
Claim · model-written summary
Spent engine oil had no statistically significant effect on T. occidentalis fresh and dry weight at 28 DAP relative to control.
Verbatim
e0“Results of the in vivo assay showed that spent engine oil had no significant effect (p<0.05) on the growth performance of T. occidentalis at 7, 14, 21 and 28 DAP and on fresh and dry weight (g) 28 DAP relative to control.”
Claim · model-written summary
Added spent engine oil was no longer detected after 28 days of plant growth.
Verbatim
e0“After 28 days of plant growth, the added spent engine oil was no longer detected.”
t0“Telfeira occidentalis”
Claim · model-written summary
The plant began producing pods 61 DAP.
Verbatim
e0“The plant began producing pods 61 DAP.”
e1“Seeds of Telfeira occidentalis was sown on the soil and assessed for growth performance (plant height, leaf area (using a metre rule) and leaf count (number of leaves) for 7, 14, 21 and 28 Days after Planting (DAP).”
Claim · model-written summary
Penicillium sp. mycelial growth diameter increased significantly relative to control in the in vitro assay.
- Taxon
- Telfeira occidentalise1
- Treatment
- in vitro assaye0
- Interactor
- Penicillium sp.
Penicilliume0other - Outcome
- growth diameter of Penicillium sp.e0
- Direction
- increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results of the in vitro assay showed a significant increase (p<0.05) in the growth diameter of Penicillium sp. relative to control.”
e1“Seeds of Telfeira occidentalis was sown on the soil and assessed for growth performance (plant height, leaf area (using a metre rule) and leaf count (number of leaves) for 7, 14, 21 and 28 Days after Planting (DAP).”
Claim · model-written summary
The authors conclude that Penicillium sp. can biodegrade hydrocarbons in spent engine oil and is useful for bioremediation.
- Taxon
- Telfeira occidentalise1
- Interactor
- Penicillium sp .Penicilliume0other
- Outcome
- biodegrade hydrocarbons present in spent engine oile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study showed that Penicillium sp . can biodegrade hydrocarbons present in spent engine oil and as such is a good tool for bioremediation.”
e1“Seeds of Telfeira occidentalis was sown on the soil and assessed for growth performance (plant height, leaf area (using a metre rule) and leaf count (number of leaves) for 7, 14, 21 and 28 Days after Planting (DAP).”