Cited by 43Algal biology and biofuel productionSpace Science and Extraterrestrial LifeSpace Exploration and Technology

‘Suitability of different photosynthetic organisms for an extraterrestrial biological life support system’.

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Lehto, Kirsi M., Lehto, Harry J., Kanervo, Eira A.·2006·Research in Microbiology

Abstract

In the present era of intensive space and planetary research, efficient life support systems (LSSs) are needed to maintain suitable living conditions when humans move into space, i.e. away from the Earth's atmosphere. Thus far, such suitable conditions on various space flights and on the space stations (Mir and the International Space Station) have been maintained solely via physical and chemical means (transport of O2, H2O and food from the Earth, cleaning and recycling of air and water). However, for long-duration missions to distant destinations, such as exploratory missions to Mars, biological life support systems (BLSSs) may be needed to convert local CO2 and H2O to O2, and to food. As on earth, this conversion process would need to be based on photosynthesis. Use of higher plants and microalgae as BLSS organisms has been intensively studied. Here we review the growth requirements of these two types of photosynthetic organisms, with particular attention to their suitability for use in harsh Martian conditions, i.e. low temperatures, low atmospheric pressure, high CO2 concentration, high UV radiation and dryness.

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Crossref · 10.1016/j.resmic.2005.07.011

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  • Cyanobacteria and algae contain less fiber than edible biomass of plants and too few carbohydrates for a complete diet.

    “For instance, cyanobacteria and algae contain less fiber then the edible biomass of plants and too few carbohydrates for a complete diet (Lehto et al., 2006).”

    From Use of Photobioreactors in Regenerative Life Support Systems for Human Space Exploration (2021) · cites this paper as Lehto et al., 2006

    Section 4 says spirulina, a cyanobacterium, is too low in carbohydrates for a complete diet. The cited passages do not compare the fiber content of cyanobacteria or algae with edible plant biomass, or establish that algae generally lack sufficient carbohydrates. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Being around plants has a positive effect on mental wellbeing of humans.

    “Furthermore, being around plants has a positive effect on the mental wellbeing of humans (Lehto et al., 2006).”

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1 of the 75 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. [60]60. A.C. Schuerger, W.L. Nicholson, Microbial ecology of spacecrafts: Im- plications for the forward contamination of Mars by robotic and human exploration missions, in: 15th Humans in Space Symposium: Benefits of Human Presence in Space, Graz, Austria, 2005, II.6-3.

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Authors
Lehto, K. M., Lehto, H. J., & Kanervo, E. A.
Affiliations
University of Turku (FI)
Corresponding author
Lehto, Kirsi M.
Venue
Research in Microbiology
Publisher
Elsevier BV
Published
2006-01
Volume
157
Issue
1
Pages
69-76
ISSN
  • 0769-2609 (ISSN-L)
  • 0923-2508
OpenAlex
W1980159019
Cited by
43
References
75
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 4 · 2022: 3 · 2021: 4 · 2020: 3 · 2019: 1 · 2018: 3 · 2017: 2 · 2015: 4 · 2014: 3 · 2013: 3 · 2012: 1
FWCI
0.10
Type
journal article
Language
en
Open access
Locations
  • Research in Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Earth Institute, Columbia University
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Space Science and Extraterrestrial Life
  • Physical Sciences › Engineering › Aerospace Engineering › Space Exploration and Technology
Keywords
biological life support systems, photosynthetic organisms, microalgae, higher plants, Mars exploration, extraterrestrial habitats, food production, low atmospheric pressure, ultraviolet radiation, low temperature, dryness, growth requirements
MeSH terms
Cyanobacteria, Atmosphere, Carbon Dioxide, Extraterrestrial Environment, Life Support Systems, Oxygen, Photosynthesis, Plants, Ecological Systems, Closed, Mars

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