The World Smallest Plants (Wolffia Sp.) as Potential Species for Bioregenerative Life Support Systems in Space

Romano, Leone Ermes; Aronne, Giovanna

doi:10.3390/plants10091896

Cited by 16 publications

(24 citation statements)

References 77 publications

(98 reference statements)

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“…Another outlier among the aquatic aroids was Orontium aquaticum , with a 2C value of 30.00 pg DNA [ 14 ]. The low C-values of aquatic aroids might be related to the prevalence of rapid vegetative reproduction [ 36 , 37 ], which can promote opportunistic growth during episodes of suitable growing conditions [ 13 ].…”

Section: Resultsmentioning

confidence: 99%

Genome Size of Life Forms of Araceae—A New Piece in the C-Value Puzzle

Kocjan

Koce

Etl

et al. 2022

Plants

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The genome size of an organism is an important trait that has predictive values applicable to various scientific fields, including ecology. The main source of plant C-values is the Plant DNA C-values database of the Royal Botanic Gardens Kew, which currently contains 12,273 estimates. However, it covers only 2.9% of known angiosperm species and has gaps in the life form and geographic distribution of plants. Only 4.5% of C-value estimates come from researchers in Central and South America. This study provides 41 new C-values for the aroid family (Araceae), collected in the Piedras Blancas National Park area in southern Costa Rica, including terrestrial, epiphytic and aquatic life forms. Data from our study are combined with C-value entries in the RBGK database for Araceae. The analysis reveals a wider range of C-values for terrestrial aroids, consistent with other terrestrial plants, a trend toward slightly lower C-values for epiphytic forms, which is more consistent for obligate epiphytes, and comparatively low C-values for aquatic aroids.

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Section: Resultsmentioning

confidence: 99%

Genome Size of Life Forms of Araceae—A New Piece in the C-Value Puzzle

Kocjan

Koce

Etl

et al. 2022

Plants

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“…Finally, Spirulina may be used as a supplemental source of astronaut nutrition. These properties suggest that Spirulina may be an important component of future space exploration endeavors (Romano, et al, 2021).…”

Section: Arthrospira Platensismentioning

confidence: 96%

Mission Overview of the American Public University System Analog Research Group’s First Space Analog Mission: 11 Days at the Inflatable Lunar/Mars Analog Habitat

Hoy¹,

O'Hara²,

Wallace³

et al. 2022

sesa

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From September 30, 2021, through October 10, 2021, the American Public University System (APUS) Analog Research Group conducted an eleven-day space analog mission simulating a mission to the Moon and/or Mars. The mission took place inside the Inflatable Lunar/Mars Analog Habitat located at the University of North Dakota in Grand Forks, North Dakota. This was the first mission organized and operated by the student-run and faculty-advised APUS Analog Research Group (AARG) titled "ARG-1I." This mission was centered around a research program that conducted experiments across six disciplines: psychology, botany, habitat architecture and design, remote education, extravehicular activity operations, and spacesuit design. Each research project was developed to further the current knowledge of human exploration in space. This paper serves as a mission overview of AARG's first analog mission emphasizing the documentation of crew operations, research overview, and lessons learned.

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“…At the same time, this is the smallest vascular plant, and its body size reaches about 1 mm in diameter. Flowering occurs rarely, and it often reproduces vegetatively [ 28 , 29 ]. Despite the simplified structure, W. arrhiza can live in freshwater and in organic-rich water and can change its feeding from photoautotrophic to heterotrophic [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Melatonin Involved in Protective Effects against Cadmium Stress in Wolffia arrhiza

Chmur

Bajguz

2023

IJMS

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Melatonin (MT) is a new plant hormone that protects against adverse environmental conditions. In the present study, the responses of Wolffia arrhiza exposed to cadmium (Cd) and MT were analyzed. Quantitative analysis of MT and precursors of its biosynthesis was performed using LC-MS-MS. The photosynthetic pigments and phytochelatins (PCs) contents were determined using HPLC, while protein and monosaccharides, stress markers, and antioxidant levels were determined using spectrophotometric methods. Interestingly, the endogenous level of MT and its substrates in W. arrhiza exposed to 1–100 µM Cd was significantly higher compared to the control. Additionally, the application of 25 µM MT and Cd intensified the biosynthesis of these compounds. The most stimulatory effect on the growth and content of pigments, protein, and sugars was observed in plants treated with 25 µM MT. In contrast, Cd treatment caused a decrease in plant weight and level of these compounds, while the application of 25 µM MT mitigated the inhibitory effect of Cd. Additionally, Cd enhanced the level of stress markers; simultaneously, MT reduced their content in duckweed exposed to Cd. In plants treated with Cd, PC levels were increased by Cd treatment and by 25 µM MT. These results confirmed that MT mitigated the adverse effect of Cd. Furthermore, MT presence was reported for the first time in W. arrhiza. In summary, MT is an essential phytohormone for plant growth and development, especially during heavy metal stress.

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The World Smallest Plants (Wolffia Sp.) as Potential Species for Bioregenerative Life Support Systems in Space

Cited by 16 publications

References 77 publications

Genome Size of Life Forms of Araceae—A New Piece in the C-Value Puzzle

Genome Size of Life Forms of Araceae—A New Piece in the C-Value Puzzle

Mission Overview of the American Public University System Analog Research Group’s First Space Analog Mission: 11 Days at the Inflatable Lunar/Mars Analog Habitat

Melatonin Involved in Protective Effects against Cadmium Stress in Wolffia arrhiza

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