Research on lettuce growth technology onboard Chinese Tiangong II Spacelab

Shen, Yunze; Pisheng, Zhao; Wang, Longji; Wang, Xiaoxia; Jian, Li; Bian, Qiang

doi:10.1016/j.actaastro.2017.11.007

Cited by 18 publications

(6 citation statements)

References 20 publications

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“…Rocket species, including E. sativa, are commercially important salad crops cultivated worldwide [76]. It is therefore an important plant for nutrition and food (fresh produce) during spaceflights [12,13,[15][16][17]. Colla et al (2007) demonstrated that rocket seed germination and seedling growth on board the ISS was affected in that the maximum germination percentage was reduced from 95% to 80% and that subsequent seedling growth and nutrient content were negatively affected.…”

Section: Effects Of Spaceflight Environmental Factors On Dry Stored Smentioning

confidence: 99%

“…Molecular analysis of growing seedlings and adult plants in microgravity by epigenomics [10], transcriptomics, and proteomics [8,9,11] identified known and novel genes specific for the response to the space environment. This research has potential to be applied to growing fresh food derived from plants for nutrition and human survival in space during long-distance space travel [5,7,[12][13][14][15][16][17]. These works demonstrated that successful 'seed-to-seed' plant cultivation and propagation is possible but also that space-produced seeds may differ in reserve composition and properties.…”

Section: Introductionmentioning

confidence: 96%

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Rocket Science: The Effect of Spaceflight on Germination Physiology, Ageing, and Transcriptome of Eruca sativa Seeds

Chandler

Haas

Khan

et al. 2020

Life

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In the ‘Rocket Science’ project, storage of Eruca sativa (salad rocket) seeds for six months on board the International Space Station resulted in delayed seedling establishment. Here we investigated the physiological and molecular mechanisms underpinning the spaceflight effects on dry seeds. We found that ‘Space’ seed germination vigor was reduced, and ageing sensitivity increased, but the spaceflight did not compromise seed viability and the development of normal seedlings. Comparative analysis of the transcriptomes (using RNAseq) in dry seeds and upon controlled artificial ageing treatment (CAAT) revealed differentially expressed genes (DEGs) associated with spaceflight and ageing. DEG categories enriched by spaceflight and CAAT included transcription and translation with reduced transcript abundances for 40S and 60S ribosomal subunit genes. Among the ‘spaceflight-up’ DEGs were heat shock proteins (HSPs), DNAJ-related chaperones, a heat shock factor (HSFA7a-like), and components of several DNA repair pathways (e.g., ATM, DNA ligase 1). The ‘response to radiation’ category was especially enriched in ‘spaceflight-up’ DEGs including HSPs, catalases, and the transcription factor HY5. The major finding from the physiological and transcriptome analysis is that spaceflight causes vigor loss and partial ageing during air-dry seed storage, for which space environmental factors and consequences for seed storage during spaceflights are discussed.

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Section: Effects Of Spaceflight Environmental Factors On Dry Stored Smentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Rocket Science: The Effect of Spaceflight on Germination Physiology, Ageing, and Transcriptome of Eruca sativa Seeds

Chandler

Haas

Khan

et al. 2020

Life

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“…Lettuce (Lactuca sativa L. cv. Dasusheng) was grown onboard Tiangong II Spacelab [149]. Germination rate was 37% for space and 78% for ground control.…”

Section: Sample Study Efforts On Earth and In Spacementioning

confidence: 99%

Dialing Back the Doomsday Clock with Circular Bioeconomy

N. Aso

2024

From Biomass to Biobased Products

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Present day status of planet earth is perilous. In January 2023, the “Doomsday Clock” (a serving global indicator for worldwide catastrophe) crept up to 90 seconds before midnight. According to the bulletin of atomic scientists, the Doomsday Clock aims to designate humanity’s closeness to annihilation; with midnight being the instance of ignition and thus, the point of no return from Armageddon. Because 90 seconds is the closest the clock has ever been to midnight, the year 2023 is therefore, planet earth’s nearest to Armageddon. But why is planet earth perilously close to extinction? The bulletin of atomic scientists cited threats from War; Disease; Climate change; and Disruptive technologies as major contributors. In the context of climate change mitigation, this chapter attempts to present contributions of the circular bioeconomy paradigm that could help humanity to dial back the Doomsday Clock. Anaerobic digestion (AD), integrated regenerative agriculture (IRA), controlled ecological life support system (CELSS), bioregenerative life support system (BLSS), note by note cuisine (NNC), circularity, and molecular pharming are some of the solutions isolated.

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“…Currently, the range of dwarf forms of rice and wheat makes it possible to achieve sustainable results, both on the ISS [ 10 ] and on the name of the Tiangong Chinese station [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Bread Wheat in Space Flight: Is There a Difference in Kernel Quality?

Aniskina,

Sudarikov,

Levinskikh

et al. 2023

Plants

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Planning long-term space flights necessarily includes issues of providing food for the crew. One of the areas of research is the development of technologies for independent production of food by the crew. Extensive research on lettuce has confirmed that the “space production” of lettuce is not inferior to that on Earth, even in the absence of gravity, but the same deep understanding of the quality of grain crops has not yet been achieved. Therefore, the goal of our work is to establish whether the conditions for growing wheat in outer space without gravity affect the weight and basic parameters of the grain, and whether this leads to increased asymmetry of the kernel and distortion of the starch composition. The objects of the study were wheat (Triticum aestivum L.) kernels of the Super Dwarf cultivar. Of which, 100 kernels matured in outer space conditions in the Lada growth chamber on the International Space Station (ISS), and 85 kernels of the control wheat grown in a similar growth chamber under terrestrial conditions. It has been established that kernels from ISS have significant differences to a smaller extent in weight, area, length, and width of the kernel. However, the kernels under both conditions were predominantly large (the average weight of a kernel in space is 0.0362 g, and in terrestrial conditions—0.0376 g). The hypothesis that the level of fluctuating asymmetry will increase in outer space was not confirmed; significant differences between the options were not proven. In general, the kernels are fairly even (coefficients of variation for the main parameters of the kernel are within 6–12%) and with a low or very low level of asymmetry. The length of starch granules of type A in filled and puny kernels is significantly greater in kernels from ISS than in the control, and in terms of the width of starch granules B and roundness indices, both experimental variants are the same. It can be assumed that the baking qualities of earthly kernels will be slightly higher, since the ratio of type B starch granules to type A is 5–8% higher than on the ISS. Also, the width of the aleurone layer cells in mature kernels was significantly inferior to the result obtained on Earth. The work proposes a new method for establishing the asymmetry of kernels without a traumatic effect (in early works, it was supposed to study asymmetry in transverse sections of the kernels). Perhaps this will make it possible to further develop a computer scanning program that will determine the level of asymmetry of the wheat fruit.

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Research on lettuce growth technology onboard Chinese Tiangong II Spacelab

Cited by 18 publications

References 20 publications

Rocket Science: The Effect of Spaceflight on Germination Physiology, Ageing, and Transcriptome of Eruca sativa Seeds

Rocket Science: The Effect of Spaceflight on Germination Physiology, Ageing, and Transcriptome of Eruca sativa Seeds

Dialing Back the Doomsday Clock with Circular Bioeconomy

Bread Wheat in Space Flight: Is There a Difference in Kernel Quality?

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