title: Life cycle experiments with Arabidopsis grown under red light-emitting diodes (LEDs).
abstract: Light-emitting diodes (LEDS) are a potential lighting source for space-based plant growth systems because of their small mass, operational longevity, and spectral quality. However, the vegetative and reproductive growth and development of plants grown under narrow spectrum LEDs must be characterized before acceptance of LEDS as an alternative light source for growing plants. The objectives of this study were 1) to determine the feasibility of using red LEDS for growing Arabidopsis thaliana L. through a full seed-bearing generation, and 2) to determine if supplemental blue radiation is necessary for growth and seed production. Arabidopsis grown under red LEDS alone produced viable seed, but these plants had abnormal leaf morphology and delayed flowering in comparison to control plants grown under broad spectrum white light or red LEDS supplemented with blue light.
authors.affiliation: Dynamac Corporation, Advanced Life Support and Space Biology, Kennedy Space Center, FL 32899, USA. goinsg@lahal.ksc.nasa.gov
authors.forename: G D
authors.initials: GD
authors.lastname: Goins
authors.forename: N C
authors.initials: NC
authors.lastname: Yorio
authors.forename: M M
authors.initials: MM
authors.lastname: Sanwo-Lewandowski
authors.forename: C S
authors.initials: CS
authors.lastname: Brown
mesh_terms: D017360:Arabidopsis / Q000254:growth & development* / Q000528:radiation effects; D018533:Biomass; D004307:Dose-Response Relationship, Radiation; D005240:Feasibility Studies; D018525:Germination / Q000528:radiation effects*; D008027:Light; D008029:Lighting; D018515:Plant Leaves / Q000254:growth & development* / Q000528:radiation effects; D012639:Seeds / Q000254:growth & development* / Q000528:radiation effects