Succession mechanism of microbial community with high species diversity in nutrient-deficient environments with low-dose ionizing radiation

Yang, Xinbin; Xu, Xinming; Hu, Dawei

doi:10.1016/j.ecolmodel.2020.109270

Cited by 7 publications

(3 citation statements)

References 45 publications

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“…Long-term residence on the space station needs stable hardware and guaranteed health status of astronauts (Brooks et al, 2014; Rosado et al, 2010; Sun et al, 2016; Yang et al, 2020), which is threatened by proliferative microbes on the inner surface of the space station (Alekhova et al, 2005). When the environmental factors are the same, the species diversity on the space station is much higher than that on the ground (Lang et al, 2017; Novikova et al, 2006), showing the phenomenon of the paradox of the plankton (G. E. Hutchinson, 1961; Yang et al, 2020). As astronauts and goods are the main sources of microbes in this closed environment (Lax et al, 2014; Singh et al, 2018), periodic cleaning is an actual plan for it.…”

Section: Introductionmentioning

confidence: 99%

Cure or Curse? Simulation Indicates that Microbes Proliferate under Disinfection Measures in the Space Station

Li,

Liu,

Chen

et al. 2024

Preprint

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The long-term stay on the space station requirement poses a knotty issue about the stable hardware and reliable guarantee of astronauts' health. Despite regular cleaning with wipes, microbes still proliferate in the space station. This study distilled three key factors--low-dose ionizing radiation, dilution and quaternary ammonium compound from the scenario. Species abundance and differential metabolites were applied to test their sole/combined influences on the three-simple-species microbial community succession. Mechanisms were built in mathematical models to generate the structural and behavior similarity with the phenomena. The results showed that LDIR, dilution and QAC, solely or jointly, could contribute to microbial proliferation. The synergy of disturbances might convert them from harmful factors to rewarding ones (e.g. the transformation of QAC into nutrients under LDIR), leading to this "Ecological Surprise". These results shed light on the mechanisms driving microbial community succession in the space station and highlighted the need for tailored biocontrol strategies in the specific environment.

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Section: Introductionmentioning

confidence: 99%

Cure or Curse? Simulation Indicates that Microbes Proliferate under Disinfection Measures in the Space Station

Li,

Liu,

Chen

et al. 2024

Preprint

Self Cite

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“…In a relatively simple environment with fluctuating temperature, for instance, many more species of phytoplankton have been observed to coexist, a phenomenon known as the "plankton paradox". As an intermediate disturbance, fluctuating temperature may promote species diversity by reducing the pressure of dominant species on other species and allowing the latter to develop [8].…”

Section: Introductionmentioning

confidence: 99%

“…e periodic LDUVR can be viewed as an unfavorable factor with intermediate disturbance, causing microbial stochastic growth response (SGR) along with random variation of the crucial processes tightly correlated with SGR, such as intra-and inter-specific competition [8,9]. is new dynamic mechanism is based on existing ecological investigations and drives microbial community succession with higher species diversity in artificial intelligence device with periodic LDUVR.…”

Section: Introductionmentioning

confidence: 99%

Formation Mechanism of Microbial Diversity in Artificial Intelligence Devices due to Intermediate Disturbance by Low-Dose UV Radiation for Complementary Medicine

Yang

Wang

et al. 2022

Evidence-Based Complementary and Alternative Medicine

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The development of artificial intelligence devices in the complementary medicine field is rapid and the surface microbial diversity pollution was found with periodic low-dose ultraviolet radiation (LDUVR). Since artificial intelligence devices do not have enough different types of substrates for microbial communities, it is unclear how the great microbial diversity can emerge and persist, as this clearly defies the competitive exclusion principle of ecology. In this study, the 5 most common genera in the artificial intelligence devices, Escherichia, Pseudomonas, Streptococcus, Staphylococcus and Aeromonas have been sampled without and with periodic LDUVR, respectively. A new hypothesis was put up to clarify the construction and maintenance process of high microbiological diversity in artificial intelligence devices by comparing and evaluating the variations between the dynamic response characteristics of their relative abundances in the two scenarios as follows: the periodic LDUVR can be regarded as an adverse factor with intermediate disturbance, causing stronger microbial stochastic growth responses (SGR) which would inevitably give rise to stronger random variation of the other important processes tightly correlated with SGR, such as intra- and interspecific competition process, and substrates production and consumption process, which could effectively diminish the auto- and cross-correlation of stochastic processes of microbial populations, alleviating the intra- and inter-specific competitions. In artificial intelligence devices with LDUVR, these crucial succession processes can propel the microbial communities to generate and sustain a high species diversity. Finally, thorough Monte Carlo simulations were used to thoroughly confirm the idea. This research can build the theoretical groundwork, offer fresh viewpoints, and suggest potential microbial prevention strategies for the succession of microbial communities in LDUVR.

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Simulated artificial interventions maintain species diversity of spatially structured microbial communities in closed ecosystem

Liu

et al. 2022

Acta Astronautica

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Succession mechanism of microbial community with high species diversity in nutrient-deficient environments with low-dose ionizing radiation

Cited by 7 publications

References 45 publications

Cure or Curse? Simulation Indicates that Microbes Proliferate under Disinfection Measures in the Space Station

Cure or Curse? Simulation Indicates that Microbes Proliferate under Disinfection Measures in the Space Station

Formation Mechanism of Microbial Diversity in Artificial Intelligence Devices due to Intermediate Disturbance by Low-Dose UV Radiation for Complementary Medicine

Simulated artificial interventions maintain species diversity of spatially structured microbial communities in closed ecosystem

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