Although microalgal-bacterial co-cultures have been largely investigated for nutrient removal, their application in treating real wastewaters is still debatable because effluent systems contain complex bacterial communities that might influence the overall bioremediation. We, therefore, verified the interaction effects of Tetradesmus obliquus IS2-Variovorax paradoxus IS1 co-culture and the native bacterial communities in wastewaters, collected from dairy farm and poultry slaughterhouse, during effluent bioremediation. Co-culturing of the two microbial strains in non-sterile wastewaters alone resulted in significant removal of total N (>92%), PO43--P (>89%) and COD (>84%) as well as increased production of ROS and neutral lipids, indicating their significant mutualistic interactions with the native bacterial communities for efficient bioremediation of wastewaters. Analysis of 16S rRNA gene-based community data in wastewaters revealed selective enrichment of Firmicutes and Actinobacteria, resulting in enhanced microalgal growth and nutrient removal. The findings of this novel study suggest that microalgal-bacterial co-cultures mediate interspecies...
Co-culturing of microalgae and bacteria in real wastewaters alters indigenous bacterial communities enhancing effluent bioremediation.
Mallavarapu Megharaj, Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, ATC Building, University Drive, Callaghan, NSW 2308, Australia. E-mail firstname.lastname@example.org
Adhiwarie Perera, I., Sudharsanam Abinandan, Logeshwaran Panneerselvan, Suresh R. Subashchandrabose, Kadiyala Venkateswarlu, Ravi Naidu, Mallavarapu Megharaj; Co-culturing of microalgae and bacteria in real wastewaters alters indigenous bacterial communities enhancing effluent bioremediation.. IFIS Food and Health Sciences Database 2023; doi:
Download citation file: