Response of rhizobium to spent engine-oil contamination in the rhizosphere of legumes (arachis hypogaea and phaseolus vulgaris)
Abstract Indiscriminate releases of spent-engine oil into the environment portend danger to legume nodulation activities by Rhizobium. To ascertain this, response of Rhizobium to spent engine-oil in the rhizosphere of A. hypogaea and P. vulgaris were studied by growing viable seeds in spent engine...
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| Format: | Article |
| Language: | English |
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Elsevier
2019-10-01
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| Series: | Kuwait Journal of Science |
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| Online Access: | https://journalskuwait.org/kjs/index.php/KJS/article/view/4732 |
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| author | Monday Ubogu Ejiro Akponah Ejovwokoghene Francis Ejukonemu |
| author_facet | Monday Ubogu Ejiro Akponah Ejovwokoghene Francis Ejukonemu |
| author_sort | Monday Ubogu |
| collection | DOAJ |
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Abstract
Indiscriminate releases of spent-engine oil into the environment portend danger to legume nodulation activities by Rhizobium. To ascertain this, response of Rhizobium to spent engine-oil in the rhizosphere of A. hypogaea and P. vulgaris were studied by growing viable seeds in spent engine-oil contaminated soil at 0, 1.0 and 3.0 % w/w for 120 days. Influence of oil on total populations of heterotrophs and Rhizobium in rhizosphere and nodule were estimated by soil dilution plate method on nutrient agar (NA) and yeast extract manitol agar (YEMA) respectively. Plant height and root growth assessed using graduated metre rule; nodule and pod numbers by counting. Results showed population of Rhizobium in rhizosphere and nodule decreased with increased oil concentrations in contrast to observed increases in bacterial heterotrophs for tested legumes (P ˂ 0.05). Plant height, root length, nodule and pod formation decreased with increased oil concentrations in soil (P ˂ 0.05). Spent engine-oil impeded Rhizobium response in rhizosphere of legumes.
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| format | Article |
| id | doaj-art-e09fd944d5b948ea84a20796393b486d |
| institution | DOAJ |
| issn | 2307-4108 2307-4116 |
| language | English |
| publishDate | 2019-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Kuwait Journal of Science |
| spelling | doaj-art-e09fd944d5b948ea84a20796393b486d2025-08-20T03:09:47ZengElsevierKuwait Journal of Science2307-41082307-41162019-10-01464Response of rhizobium to spent engine-oil contamination in the rhizosphere of legumes (arachis hypogaea and phaseolus vulgaris)Monday Ubogu0Ejiro Akponah1Ejovwokoghene Francis Ejukonemu2Federal University of Agriculture MakurdiDelta State University, AbrakaDelta State Polytechnic, Oghara. Abstract Indiscriminate releases of spent-engine oil into the environment portend danger to legume nodulation activities by Rhizobium. To ascertain this, response of Rhizobium to spent engine-oil in the rhizosphere of A. hypogaea and P. vulgaris were studied by growing viable seeds in spent engine-oil contaminated soil at 0, 1.0 and 3.0 % w/w for 120 days. Influence of oil on total populations of heterotrophs and Rhizobium in rhizosphere and nodule were estimated by soil dilution plate method on nutrient agar (NA) and yeast extract manitol agar (YEMA) respectively. Plant height and root growth assessed using graduated metre rule; nodule and pod numbers by counting. Results showed population of Rhizobium in rhizosphere and nodule decreased with increased oil concentrations in contrast to observed increases in bacterial heterotrophs for tested legumes (P ˂ 0.05). Plant height, root length, nodule and pod formation decreased with increased oil concentrations in soil (P ˂ 0.05). Spent engine-oil impeded Rhizobium response in rhizosphere of legumes. https://journalskuwait.org/kjs/index.php/KJS/article/view/4732ContaminationlegumeRhizobiumrhizospherenodulespent engine-oil |
| spellingShingle | Monday Ubogu Ejiro Akponah Ejovwokoghene Francis Ejukonemu Response of rhizobium to spent engine-oil contamination in the rhizosphere of legumes (arachis hypogaea and phaseolus vulgaris) Kuwait Journal of Science Contamination legume Rhizobium rhizosphere nodule spent engine-oil |
| title | Response of rhizobium to spent engine-oil contamination in the rhizosphere of legumes (arachis hypogaea and phaseolus vulgaris) |
| title_full | Response of rhizobium to spent engine-oil contamination in the rhizosphere of legumes (arachis hypogaea and phaseolus vulgaris) |
| title_fullStr | Response of rhizobium to spent engine-oil contamination in the rhizosphere of legumes (arachis hypogaea and phaseolus vulgaris) |
| title_full_unstemmed | Response of rhizobium to spent engine-oil contamination in the rhizosphere of legumes (arachis hypogaea and phaseolus vulgaris) |
| title_short | Response of rhizobium to spent engine-oil contamination in the rhizosphere of legumes (arachis hypogaea and phaseolus vulgaris) |
| title_sort | response of rhizobium to spent engine oil contamination in the rhizosphere of legumes arachis hypogaea and phaseolus vulgaris |
| topic | Contamination legume Rhizobium rhizosphere nodule spent engine-oil |
| url | https://journalskuwait.org/kjs/index.php/KJS/article/view/4732 |
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