Spatial Characterization of Microbial Communities on Multi-Species Leafy Greens Grown Simultaneously in the Vegetable Production Systems on the International Space Station.

Autor: Hummerick ME; Kennedy Space Center, Amentum Services, Inc., LASSO, Merritt Island, FL 32899, USA., Khodadad CLM; Kennedy Space Center, Amentum Services, Inc., LASSO, Merritt Island, FL 32899, USA., Dixit AR; Kennedy Space Center, Amentum Services, Inc., LASSO, Merritt Island, FL 32899, USA., Spencer LE; Kennedy Space Center, Amentum Services, Inc., LASSO, Merritt Island, FL 32899, USA., Maldonado-Vasquez GJ; Kennedy Space Center, Amentum Services, Inc., LASSO, Merritt Island, FL 32899, USA., Gooden JL; Kennedy Space Center, Amentum Services, Inc., LASSO, Merritt Island, FL 32899, USA., Spern CJ; Kennedy Space Center, Amentum Services, Inc., LASSO, Merritt Island, FL 32899, USA., Fischer JA; Kennedy Space Center, Amentum Services, Inc., LASSO, Merritt Island, FL 32899, USA., Dufour N; Kennedy Space Center, Utilization and Life Sciences Office, NASA, Merritt Island, FL 32899, USA., Wheeler RM; Kennedy Space Center, Utilization and Life Sciences Office, NASA, Merritt Island, FL 32899, USA., Romeyn MW; Kennedy Space Center, Utilization and Life Sciences Office, NASA, Merritt Island, FL 32899, USA., Smith TM; Kennedy Space Center, Utilization and Life Sciences Office, NASA, Merritt Island, FL 32899, USA., Massa GD; Kennedy Space Center, Utilization and Life Sciences Office, NASA, Merritt Island, FL 32899, USA., Zhang Y; Kennedy Space Center, Utilization and Life Sciences Office, NASA, Merritt Island, FL 32899, USA.
Jazyk: angličtina
Zdroj: Life (Basel, Switzerland) [Life (Basel)] 2021 Oct 09; Vol. 11 (10). Date of Electronic Publication: 2021 Oct 09.
DOI: 10.3390/life11101060
Abstrakt: The establishment of steady-state continuous crop production during long-term deep space missions is critical for providing consistent nutritional and psychological benefits for the crew, potentially improving their health and performance. Three technology demonstrations were completed achieving simultaneous multi-species plant growth and the concurrent use of two Veggie units on the International Space Station (ISS). Microbiological characterization using molecular and culture-based methods was performed on leaves and roots from two harvests of three leafy greens, red romaine lettuce ( Lactuca sativa cv. 'Outredgeous'); mizuna mustard, ( Brassica rapa var japonica ); and green leaf lettuce, ( Lactuca sativa cv. Waldmann's) and associated rooting pillow components and Veggie chamber surfaces. Culture based enumeration and pathogen screening indicated the leafy greens were safe for consumption. Surface samples of the Veggie facility and plant pillows revealed low counts of bacteria and fungi and are commonly isolated on ISS. Community analysis was completed with 16S rRNA amplicon sequencing. Comparisons between pillow components, and plant tissue types from VEG-03D, E, and F revealed higher diversity in roots and rooting substrate than the leaves and wick. This work provides valuable information for food production-related research on the ISS and the impact of the plant microbiome on this unique closed environment.
Databáze: MEDLINE
Externí odkaz: