Survival of E. Coli in the Rhizosphere and Phyllosphere of Leafy Greens Grown in Controlled Environment Chambers Under International Space Station Conditions

Hummerick, Mary E ; Khodadad, Christina L M ; Spencer, Lashelle E ; Dixit, Anirudha R ; Spern, Cory J ; Curry, Aaron B ; Gooden, Jennifer L ; Fischer, Jason A ; Maldonado, Gretchen J ; Massa, Gioia D(NASA Kennedy Space Center, Cocoa Beach, FL, United States)

关键词: AGRICULTURE;    ASTRONAUTS;    CLOSED ECOLOGICAL SYSTEMS;    CONTROL SYSTEMS DESIGN;    CULTIVATION;    ESCHERICHIA;    FARM CROPS;    INTERNATIONAL SPACE STATION;    MICROORGANISMS;    PATHOGENS;    SEEDS;    SPACE MISSIONS;    TEST CHAMBERS;    CROP GROWTH;   

RP-ID  :  KSC-E-DAA-TN70067

学科分类：航空航天科学

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来源: NASA Technical Reports Server

【 摘 要 】

NASA's mission for manned long- duration space exploration drives the research for crop selection to provide a nutritious and safe supplement to an astronaut's diet. Understanding plant growth, health, and the associated microbial communities in closed environments will be critical to the success of this mission. Cultivation of crops in closed controlled environment agricultural systems may limit microbial colonization and reduce diversity of the microbial communities. Furthermore, practices like seed and growth medium sanitization may impact microbial communities in the mature plant and the capacity to limit the growth of food borne pathogens through competition.