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MICROBIAL DYNAMICS IN THE CONFINED EDEN-ISS GREENHOUSE IN ANTARCTICA

Rettberg, P. and Fahrion, J. and Fink, C. and Panitz, C. and Rabbow, E. and Schubert, D. and Zabel, P. and Beblo-Vranesevic, K. (2019) MICROBIAL DYNAMICS IN THE CONFINED EDEN-ISS GREENHOUSE IN ANTARCTICA. 70th International Astronautical Congress 2019, 21 - 25 October 2019, Washington D.C., United States.

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Abstract

Plant cultivation in large-scale closed environments is challenging and several key technologies necessary for space-based plant production are not yet space-qualified or remain in early stages of development. The EDEN ISS project (EC Horizon 2020 RIA, grant no. 636501, https://eden-iss.net/) developed and demonstrated higher plant cultivation technologies, suitable for future deployment on the International Space Station and from a long-term perspective, within Moon and Mars habitats. The cultivation of fresh vegetables in the EDEN-ISS greenhouse was tested for nine months in Antarctica. Throughout the cultivation period the microbial bioburden and biodiversity was monitored inside the greenhouse on a regular basis to assess the potential microbial risks associated with plant and human pathogens. Samples were taken from plants, surfaces inside the greenhouse, plant nutrients solutions and the fresh water tank. From preliminary results of the ongoing analysis, it can be stated that in general, the quantity of microorganisms, i.e. bacteria, molds and yeasts, was fluctuating substantailly during the nine months. The microbial load in the nutrition solution as well as the surface contamination increases over time. Almost all microorganisms found on the plant samples are molds. The quantity as well as the diversity of microorganisms on the plant surfaces is very low compared to commercially produced vegetables from a German grocery.

Item URL in elib:https://elib.dlr.de/129889/
Document Type:Conference or Workshop Item (Speech)
Title:MICROBIAL DYNAMICS IN THE CONFINED EDEN-ISS GREENHOUSE IN ANTARCTICA
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Rettberg, P.Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; petra.rettberg (at) dlr.dehttps://orcid.org/0000-0003-4439-2395
Fahrion, J.Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany.UNSPECIFIED
Fink, C.Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany.UNSPECIFIED
Panitz, C.RWTH Aachen, Germany; corinna.panitz (at) dlr.dehttps://orcid.org/0000-0002-6740-761X
Rabbow, E.Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; elke.rabbow (at) dlr.dehttps://orcid.org/0000-0002-9301-2021
Schubert, D.Institute for Space Systems, German Aerospace Center (DLR), Bremen, Germany; daniel.schubert (at) dlr.deUNSPECIFIED
Zabel, P.Institute for Space Systems, German Aerospace Center (DLR), Bremen, Germany; paul.zabel (at) dlr.deUNSPECIFIED
Beblo-Vranesevic, K.Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; kristina.beblo (at) dlr.dehttps://orcid.org/0000-0002-4834-7121
Date:21 October 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:EDEN-ISS Greenhouse
Event Title:70th International Astronautical Congress 2019
Event Location:Washington D.C., United States
Event Type:international Conference
Event Dates:21 - 25 October 2019
Organizer:International Astronautical Federation (IAF)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Vorhaben Strahlenbiologie (old)
Location: Bremen , Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Institute of Space Systems > System Analysis Space Segment
Deposited By: Kopp, Kerstin
Deposited On:30 Oct 2019 15:03
Last Modified:30 Oct 2019 15:03

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