Corrigendum: Insights into plastic biodegradation: community composition and functional capabilities of the superworm (Zophobas morio) microbiome in styrofoam feeding trials

Sun, Jiarui; Prabhu, Apoorva; Aroney, Samuel T N

doi:10.1099/mgen.0.000916

Cited by 4 publications

(8 citation statements)

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“…Recent studies are revealing this role in unexpected ways. In the digestive tract of the darkling beetle ( Zophobas morio ) larvae, live Bacillus bacteria that can decompose polystyrene, and free nutrients to the insect [ 53 ]. However, the influence of gut microbes on their host reaches beyond fundamental nutritional processes.…”

Section: Extended Genotypementioning

confidence: 99%

Insect Freeze-Tolerance Downunder: The Microbial Connection

Morgan‐Richards

Marshall

Biggs

et al. 2023

Insects

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Insects that are freeze-tolerant start freezing at high sub-zero temperatures and produce small ice crystals. They do this using ice-nucleating agents that facilitate intercellular ice growth and prevent formation of large crystals where they can damage tissues. In Aotearoa/New Zealand the majority of cold adapted invertebrates studied survive freezing at any time of year, with ice formation beginning in the rich microbiome of the gut. Some freeze-tolerant insects are known to host symbiotic bacteria and/or fungi that produce ice-nucleating agents and we speculate that gut microbes of many New Zealand insects may provide ice-nucleating active compounds that moderate freezing. We consider too the possibility that evolutionary disparate freeze-tolerant insect species share gut microbes that are a source of ice-nucleating agents and so we describe potential transmission pathways of shared gut fauna. Despite more than 30 years of research into the freeze-tolerant mechanisms of Southern Hemisphere insects, the role of exogenous ice-nucleating agents has been neglected. Key traits of three New Zealand freeze-tolerant lineages are considered in light of the supercooling point (temperature of ice crystal formation) of microbial ice-nucleating particles, the initiation site of freezing, and the implications for invertebrate parasites. We outline approaches that could be used to investigate potential sources of ice-nucleating agents in freeze-tolerant insects and the tools employed to study insect microbiomes.

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Section: Extended Genotypementioning

confidence: 99%

Insect Freeze-Tolerance Downunder: The Microbial Connection

Morgan‐Richards

Marshall

Biggs

et al. 2023

Insects

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“…[2] contains all experimental parameters, including g (the total number of collectives under selection), τ (maturation time), µ (mutation rate), r (growth rate of the slow-growing S type), and s (growth advantage of F over S). Equation [2] has the same shape as results from numerically integrating Eq. [1] and from stochastic simulations (Fig.…”

Section: Intra-collective Evolution Is the Fastest At Intermediate F ...mentioning

confidence: 99%

“…To see why, we note that the only place that g appears is Eq. [2] in the form of Φ −1 ( 1 g ) = ϕ(g). When g becomes large, Φ −1 (1/g) is asymptotically expressed (32).…”

Section: Intra-collective Evolution Is the Fastest At Intermediate F ...mentioning

confidence: 99%

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Artificial selection for microbial collective composition can succeed or fail depending on the initial and target values

Lee

Shou²,

Park

2023

Preprint

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Microbial collectives -- communities of microbes of the same or different species -- can carry out functions that are often not achievable by individual microbes in isolation. Examples of collective functions include waste degradation, food fermentation, and vitamin production that are beneficial to humans. A human-desired collective function might be achieved by artificial selection on collectives. However, such selection on collectives is challenging due to the lack of theoretical understanding. Here, we examine a simple microbial system to develop a theoretical approach for understanding the conditions for successful artificial selection on collectives. In each selection cycle, multiple low-density "Newborn" collectives with wild and mutant cells are allowed to "mature" during which cells grow and possibly mutate. At the end of a cycle, "Adult" collective with the highest function is selected and is split into multiple Newborns for the next cycle. Repeating selection cycles, we aim to obtain the target composition that gives an optimal collective function. Investigating the possibility to get closer the target composition through artificial selection, we predict whether the selection is successful at given experimental setups. This approach allows us to find which experimental parameters are important for successful selection. Our results show that small bottleneck sizes play an important role while the effect of increasing collective numbers is not always significant.

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“…Multiple invertebrates have been found to ingest biological and non-biological polymers, leading to fragmentation and deterioration [9] – [11] . In some organisms, ingested plastics increase their body mass and/or survival rate [12] – [15] . In other cases, ingested plastics do not alter these factors [11] , [16] , [17] .…”

Section: Introductionmentioning

confidence: 99%

Discovery of Nylon 11 ingestion by mealworm (<i>Tenebrio molitor</i>) larvae and detection of monomer-degrading bacteria in gut microbiota

Leicht¹,

Gatz-Schrupp²,

Masuda

2022

AIMSMICRO

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<abstract> <p>Nylon 11, which can be found in many commercial products, is a synthetic plastic that has previously been considered non-biodegradable. Increasing nylon 11 and other plastics in landfills and in the environment pose an environmental concern. Recent studies on plastic biodegradation revealed that initial mechanical fragmentations increase the rate of degradation. In this study, we discovered that the larvae of mealworm (<italic>Tenebrio molitor</italic>) can masticate nylon 11 film at the rate of 0.25 ± 0.07 mg per fifty larvae per day. The body mass of larvae did not differ from that of starvation control while feeding on nylon 11. Comparison of gut microbiota in nylon-fed and starving larvae showed a shift in composition. There was a significant variation in community composition among the nylon 11-fed experimental groups, suggesting that many organisms are capable of metabolizing nylon 11 fragments and/or possess a growth advantage in a nylon-fed gut environment. We also discovered that a significant fraction of gut microbiome of control larvae is capable of metabolizing nylon 11 monomer (11-aminoundecanoic acid) even in the absence of prior exposure to nylon 11. This is the first study demonstrating ingestion of nylon polymers by invertebrates, and our results suggest the potential of mealworm larvae for nylon 11 biodegradation applications.</p> </abstract>

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Corrigendum: Insights into plastic biodegradation: community composition and functional capabilities of the superworm (Zophobas morio) microbiome in styrofoam feeding trials

Cited by 4 publications

References 0 publications

Insect Freeze-Tolerance Downunder: The Microbial Connection

Insect Freeze-Tolerance Downunder: The Microbial Connection

Artificial selection for microbial collective composition can succeed or fail depending on the initial and target values

Discovery of Nylon 11 ingestion by mealworm (<i>Tenebrio molitor</i>) larvae and detection of monomer-degrading bacteria in gut microbiota

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