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Responses of Rhizophora Mangle to Simulated Crude Oil Pollution


Affiliations
1 Department of Botany, University of Lagos,Akoka, Lagos, Nigeria
 

Physiological and biochemical responses induced by crude oil stress were investigated in pot-grown seedlings of the mangrove, Rhizophora mangle. Plants were grown for 4 weeks in soils amended with Bonny light crude oil to achieve 0, 1, 3, and 5 % v/w, oil/soil concentrations. Growth, physiological, biochemical, as well as metabolic parameters representative of oxidative stress and enzyme activities were measured at the end of the treatment period. It was observed that crude oil treatments resulted in low biomass accumulation, relative water content, and chlorophyll level. The treatments however led to a significant increase in lipid peroxidation, catalase, and ascorbate peroxidase activities. It was concluded that R. mangle is among the plant species in the mangrove ecosystem that are susceptible to crude oil toxicity.

Keywords

Rhizophora Mangle, Crude Oil, Environment, Pollution, Ecosystem
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  • Responses of Rhizophora Mangle to Simulated Crude Oil Pollution

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Authors

Victor Johwo Odjegba
Department of Botany, University of Lagos,Akoka, Lagos, Nigeria

Abstract


Physiological and biochemical responses induced by crude oil stress were investigated in pot-grown seedlings of the mangrove, Rhizophora mangle. Plants were grown for 4 weeks in soils amended with Bonny light crude oil to achieve 0, 1, 3, and 5 % v/w, oil/soil concentrations. Growth, physiological, biochemical, as well as metabolic parameters representative of oxidative stress and enzyme activities were measured at the end of the treatment period. It was observed that crude oil treatments resulted in low biomass accumulation, relative water content, and chlorophyll level. The treatments however led to a significant increase in lipid peroxidation, catalase, and ascorbate peroxidase activities. It was concluded that R. mangle is among the plant species in the mangrove ecosystem that are susceptible to crude oil toxicity.

Keywords


Rhizophora Mangle, Crude Oil, Environment, Pollution, Ecosystem

References