Version 1
: Received: 7 January 2021 / Approved: 8 January 2021 / Online: 8 January 2021 (13:01:18 CET)
Version 2
: Received: 8 February 2021 / Approved: 8 February 2021 / Online: 8 February 2021 (15:46:08 CET)
How to cite:
Khalil, S.; Panda, P.; Ghadamgahi, F.; Rosberg, A.; Vetukuri, R.R. Comparison of Two Commercial Recirculated Aquacultural Systems and Their Microbial Potential in Plant Disease Suppression. Preprints2021, 2021010155. https://doi.org/10.20944/preprints202101.0155.v2
Khalil, S.; Panda, P.; Ghadamgahi, F.; Rosberg, A.; Vetukuri, R.R. Comparison of Two Commercial Recirculated Aquacultural Systems and Their Microbial Potential in Plant Disease Suppression. Preprints 2021, 2021010155. https://doi.org/10.20944/preprints202101.0155.v2
Khalil, S.; Panda, P.; Ghadamgahi, F.; Rosberg, A.; Vetukuri, R.R. Comparison of Two Commercial Recirculated Aquacultural Systems and Their Microbial Potential in Plant Disease Suppression. Preprints2021, 2021010155. https://doi.org/10.20944/preprints202101.0155.v2
APA Style
Khalil, S., Panda, P., Ghadamgahi, F., Rosberg, A., & Vetukuri, R.R. (2021). Comparison of Two Commercial Recirculated Aquacultural Systems and Their Microbial Potential in Plant Disease Suppression. Preprints. https://doi.org/10.20944/preprints202101.0155.v2
Chicago/Turabian Style
Khalil, S., AnnaKarin Rosberg and Ramesh R Vetukuri. 2021 "Comparison of Two Commercial Recirculated Aquacultural Systems and Their Microbial Potential in Plant Disease Suppression" Preprints. https://doi.org/10.20944/preprints202101.0155.v2
Abstract
Background: Aquaponics are food production systems advocated for food security and health. Their sustainability from a nutritional and plant health perspective is, however, a significant challenge. Recirculated aquaculture systems (RAS) form a major part of aquaponic systems, but knowledge about their potential to benefit plant growth and plant health is limited. The current study tested if the diversity and function of microbial communities in two commercial RAS were specific to the fish species used (Tilapia or Clarias) and sampling site (fish tanks and wastewaters), and whether they confer benefits to plants and have invitro antagonistic potential towards plant pathogens. Results: Microbial diversity and composition was found to be dependent on fish species and sample site. The Tilapia RAS hosted higher bacterial diversity than the Clarias RAS; but the latter hosted higher fungal diversity. Both Tilapia and Clarias RAS hosted bacterial and fungal communities that promoted plant growth, inhibited plant pathogens and encouraged biodegradation. The production of extracellular enzymes, related to nutrient availability and pathogen control, by bacterial strains isolated from the Tilapia and Clarias systems, makes them a promising tool in aquaponics and in their system design. Conclusions: This study explored the microbial potential of the commercial RAS with either Tilapia or Clarias as a tool to benefit the aquaponic system with respect to plant growth promotion and control of plant diseases.
Biology and Life Sciences, Biochemistry and Molecular Biology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Commenter: Sammar Khalil
Commenter's Conflict of Interests: Author