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Polyethersulfone (PES) Membrane on Agar Plates as a Plant Growth Platform for Spaceflight Cover

Polyethersulfone (PES) Membrane on Agar Plates as a Plant Growth Platform for Spaceflight

Open Access
|Dec 2022

Figures & Tables

Figure 1

Setup for APEx-07. (A) Plate components from left to right: agar plate, PES membrane, Arabidopsis seed with guar gum, micropore tape. (B) Plates growing vertically in rack.

Figure 2

12-day growth comparison between black and white PES membrane. The more cost-effective white membranes showed comparable growth to black membrane.

Figure 3

Harvest strategy to maintain intact seedlings. (A) Representative 12-day seedling growth in plate, (B) membrane collected with forceps, (C) membrane transferred to lid of Petri dish and wrapped in foil for freezing and shipping, and (D) a frozen plate returned from low Earth orbit.

Figure 4

Ground control Veggie unit at Kennedy Space Center (left) and both Veggie units at capacity aboard the ISS (right).

Success criteria of EVT samples as measured across 60 plates_

Success CriteriaGoalObservedScore
Germination>90%99%Excellent
radical emergence
Growth90%>99%Excellent
roots > 4cm
Contamination<10%0%Excellent
Bacterial or fungal growth
Seedling intactness>90%100%Excellent
Dissectible into roots/shoots
RNA quality>75%100%Excellent
RIN> 8, 260/280>2
Language: English
Page range: 30 - 36
Published on: Dec 31, 2022
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2022 Alexander Meyers, Eric Land, Imara Perera, Emma Canaday, Sarah E. Wyatt, published by American Society for Gravitational and Space Research
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.