2011
DOI: 10.1007/s10669-011-9333-x
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Morphological and anatomical effects of crude oil on Pistia stratiotes

Abstract: Fresh whole plants of Pistia stratiotes were exposed to varying doses of crude oil (0-100 ppm) for 28 days at normal temperature of 30 ± 2°C. Samples were taken weekly during this period for determination of changes in leaf area, root length, number of leaves, and number of sprouts. The cross-section of one terminal end of the major roots and cellular distribution of the meristematic region were also examined. The results show that crude oil was toxic to the plant at all concentrations in all investigated para… Show more

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Cited by 19 publications
(5 citation statements)
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“…The lower shoot dry biomass of Cyperus brevifolius in T3 than T4 as found in this study could be related to the low availability of nutrients/minerals and acidic conditions in the contaminated soil. Besides, water deficiency conditions in crude oil contaminated soil inevitably reduced leaf area index (LAI) and chlorophyll contents of Cyperus brevifolius in T3 resulting difficulty in transpiration and photosynthesis which in turn results in retarded plant growth and biomass 37,38 . Nevertheless, the greater dry biomass of root of Cyperus brevifolius in T3 is likely to be associated with the adaptive response of the plant under stress environment.…”
Section: Discussionmentioning
confidence: 99%
“…The lower shoot dry biomass of Cyperus brevifolius in T3 than T4 as found in this study could be related to the low availability of nutrients/minerals and acidic conditions in the contaminated soil. Besides, water deficiency conditions in crude oil contaminated soil inevitably reduced leaf area index (LAI) and chlorophyll contents of Cyperus brevifolius in T3 resulting difficulty in transpiration and photosynthesis which in turn results in retarded plant growth and biomass 37,38 . Nevertheless, the greater dry biomass of root of Cyperus brevifolius in T3 is likely to be associated with the adaptive response of the plant under stress environment.…”
Section: Discussionmentioning
confidence: 99%
“…Journal of Environmental Biology, January 20215 Ekundayo et al, 2001), thus resulting differences in growth and productivity in two contrasting habitat conditions. It has been suggested that presence of aliphatic, aromatic and high molecular weight organic compounds of crude oil inhibits the chlorophyll synthesizing enzyme and as a result chlorophyll production of the test plants was reduced (Akapo et al, 2011). This chlorophyll deficiency of plants growing in oil contaminated soil is further related with retardation in growth of plants.…”
Section: O N L I N E C O P ÿmentioning
confidence: 99%
“…There are some phyto-remediation studies on floating plants such as water lettuce (Pistia stratiotes) and duckweed (Spirodela polyrrhia) for removing crude oils of oil-polluted water bodies. However, their performance was not promising (Agbogidi and Bamidele, 2009;Akapo et al, 2011). In general, there are few studies to identify the ability of aquatic species for crude oil phyto-remediation.…”
Section: Bioremediation Techniques Using Plantsmentioning
confidence: 99%