Photosynthetic and Ultrastructure Parameters of Maize Plants are Affected During the Phyto-Rhizoremediation Process of Degraded Metal Working Fluids.
A phyto-rhizoremediation system using corn and esparto fiber as rooting support to remediate degraded metal working fluids (dMWFs) has been developed in the present study. In order to improve the process, plants were inoculated at the root level with bacteria either individually, and with a consortium of strains. All strains used were able to grow with MWFs. The results show that this system significantly lowers the Chemical Oxygen Demand below legal limits within 5 days. However, results were only improved with the bacterial consortium. Despite the effectiveness of the phyto-rhizoremediation process, plants are damaged at the photosynthetic level according to the photosynthetic parameters measured, as well as at the ultrastructure of the vascular cylinder and the Bundle Sheath Cells. Interestingly, the bacterial inoculation protects against this damage. Therefore, it seems that that the inoculation with bacteria can protect the plants against these harmful effects.
['Grijalbo|Lucía|L|', 'Gutierrez Mañero|Francisco Javier|FJ|', 'Fernandez-Pascual|Mercedes|M|', 'Lucas|Jose Antonio|JA|']
D001673:Biodegradation, Environmental D057919:Biological Oxygen Demand Analysis D052918:Environmental Restoration and Remediation D006863:Hydrogen-Ion Concentration D008670:Metals D018517:Plant Roots D014865:Waste Disposal, Fluid D014874:Water Pollutants, Chemical D003313:Zea mays
maize phyto-rhizoremediation metal working fluids chlorophyll fluorescence