Microbial diversity formation and maintenance due to temporal niche differentiation caused by low-dose ionizing radiation in oligotrophic environments

Yang, Xinbin; Song, Ganyu; Li, Shuaishuai; Hu, Dawei

doi:10.1016/j.lssr.2021.08.003

Cited by 4 publications

(3 citation statements)

References 46 publications

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“…A top-down state-space model with M + m rst-order nonlinear ODEs of microbial community succession in the arti cial intelligence devices was built based on the prior analysis and establishing rate equations [21]. e rst-order kinetic equation of the i-th microbial population can be stated as follows, with reference to (1)-( 4):…”

Section: General Kinetic Model Obtained From Rate Equationsmentioning

confidence: 99%

“…A large scale of Monte Carlo simulations was then carried out to confirm the proposed hypothesis on the formation and maintenance of microbial biodiversity in the artificial intelligence device with periodic LDUVR. Before digital simulation, simulation methods and other options were properly set [21], according to the complexity of kinetic models, accuracy, convergence speed, and computational cost.…”

Section: Microbial Species and Substrates Computer-generated Formentioning

confidence: 99%

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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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Section: General Kinetic Model Obtained From Rate Equationsmentioning

confidence: 99%

Section: Microbial Species and Substrates Computer-generated Formentioning

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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“…Short-term low-dose radiation generated by radioactive substances result in microorganisms reducing radiation damage by rapidly repairing damaged DNA fragments, forming spores to slow down their metabolic rate, generating superoxide dismutase to remove free radicals, and changing the carbon source utilized. These changes are made to adapt to the living conditions caused by nuclear radiation (Yang et al, 2021). Microorganisms develop resistance to radiation through adaptive reactions and can tolerate higher intensities of ionizing radiation over time (Fornalski et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

The effect of aboveground long-term low-dose ionizing radiation on soil microbial diversity and structure

et al. 2023

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Studies investigating the diversity and structure of soil microbial systems in response to ionizing radiation are scarce. In particular, effects of long-term low-dose radiation is rarely studied because of its unique conditions. In this study, an area in Chengdu, China, which has been irradiated by the radionuclide thorium-232 for more than 10 years was investigated. Four groups of samples with absorbed dose rates ranging from 192.906 ± 5.05 to 910.964 ± 41.09 nGy/h were collected to analyze the compositional and functional changes of the soil microbial systems in the region. The diversity and structure of the soil microbial systems were determined using high-throughput sequencing. Our results showed that long-term low-dose ionizing radiation had no significant effect on soil bacterial diversity, but had a great impact on fungal diversity. Long-term ionizing radiation strongly affected soil microbial community structure. Long-term low-dose ionizing radiation was shown to have a promoting effect on iron-oxidizing bacteria and ectomycorrhizal fungi and have an inhibiting effect on predatory or parasitic fungi, further affecting the soil C/N ratio. This study is of great reference significance for future research on the impact of long-term low-dose ionizing radiation on soil ecosystems.

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Combined effect of simulated microgravity and low-dose ionizing radiation on structure and antibiotic resistance of a synthetic community model of bacteria isolated from spacecraft assembly room

Lu¹,

Fu²,

Chen³

et al. 2023

Life Sciences in Space Research

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Microbial diversity formation and maintenance due to temporal niche differentiation caused by low-dose ionizing radiation in oligotrophic environments

Cited by 4 publications

References 46 publications

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

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

The effect of aboveground long-term low-dose ionizing radiation on soil microbial diversity and structure

Combined effect of simulated microgravity and low-dose ionizing radiation on structure and antibiotic resistance of a synthetic community model of bacteria isolated from spacecraft assembly room

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