Gamma radiation effect on the midgut bacteria of Plodia interpunctella and its role in organic wastes biodegradation

Mahmoud, Eman A.; Al-Hagar, Ola E.A.; El-Aziz, Mona F. Abd

doi:10.1007/s42690-020-00203-x

Cited by 11 publications

(3 citation statements)

References 34 publications

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“…In recent years, it has been found that some insect species, such as T. molitor (Yang et al 2015b), G. mellonella (Jiang et al 2021), Z. morio (Miao and Zhang. 2010), Plodia interpunctella (Mahmoud et al, 2020), have a good biodegradation effect on a variety of plastic products. These discoveries offer new hope for the biodegradation of waste plastics.…”

Section: Discussionmentioning

confidence: 99%

Comparison of three insect larvae biodegrading polyethylene and role of the intestinal bacterial strains in polyethylene degradation by Galleria mellonella larvae

Gu,

Xie,

Song

et al. 2024

Preprint

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Polyethylene (PE) has been described as the most abundant plastic worldwide, such as mulching films and plastic bags. A few insects have been identified to ingest and metabolize polyethylene. In this study, we contrasted the degradation ability of three insect larvae (Galleria mellonella, Tenebrio molitor and Zophobas morio) biodegrading polyethylene. The results demonstrated that G. mellonella has the best digestion ability on polyethylene. Eating and digestion of plastic products for a long time will inevitably cause negative effects on insects. The additional nutrients can improve the health of the PE-degrading insects, thus extending the digestion time of the plastic. Microbial degradation of polyethylene (PE) products has attracted much attention. Here, two bacterial isolates, Fictibacillus phosphorivorans A-2 and Pseudomonas sp. A-3 from the gut of PE-feeding G. mellonella, was suggested to utilize PE. Two bacterial isolates removed approximately 3.57 ± 0.30% and 2.00 ± 0.16% of PE films after 40 days at 30 ◦C, respectively. We demonstrated the ability for PE degradation of F. phosphorivorans A-2 at greater rates than Pseudomonas sp. A-3. The results suggest that supplementing the co-diet affected the physiological properties of the PE-degrading insect and plastic biodegradation. This study enriched microbial resources for PE degradation and provided promising evidence for the biodegradation of PE in the environment.

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Section: Discussionmentioning

confidence: 99%

Comparison of three insect larvae biodegrading polyethylene and role of the intestinal bacterial strains in polyethylene degradation by Galleria mellonella larvae

Gu,

Xie,

Song

et al. 2024

Preprint

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“…To date, only a limited number of microorganisms have been reported to degrade PP, typically requiring pretreatment and exhibiting a slow degradation rate. 6,7 Recent researchers have identified certain macroinvertebrates capable of biodegrading major plastics, 8 such as insect larvae belonging to darkling beetles (Coleoptera: Tenebrionidae) including Tenebrio molitor (T. molitor), 9−13 Tenebrio obscurus, 14 Zophobas atratus, 15,16 Uloma sp., 17 and Plesiophthalmus davidis; 18 pyralid moths (Lepidoptera: Pyralidae) including Plodia interpunctella, 19,20 Galleria mellonella, 21−27 and Achroia grisella; 28 as well as other macroinvertebrates e.g., land snails Achatina Fulica. 29 Among these, T. molitor larvae have been extensively studied for their ability to degrade a wide range of materials, including wood residues in the environment, 30 lignocellulosic agricultural residues, 31,32 and various plastics including polystyrene (PS), 7−9,31−35 low-density polyethylene (LDPE) and high-density polyethylene (HDPE), 12,15,36,37 polyvinyl chloride (PVC), 15 polyethylene terephthalate (PET), 38 polyurethane (PUR), 39 polylactic acids (PLA), 40 and even rubber 41 and graphene oxide.…”

Section: ■ Introductionmentioning

confidence: 99%

“…To date, only a limited number of microorganisms have been reported to degrade PP, typically requiring pretreatment and exhibiting a slow degradation rate. , Recent researchers have identified certain macroinvertebrates capable of biodegrading major plastics, such as insect larvae belonging to darkling beetles (Coleoptera: Tenebrionidae) including Tenebrio molitor (T. molitor), − Tenebrio obscurus, Zophobas atratus, , Uloma sp., and Plesiophthalmus davidis ; pyralid moths (Lepidoptera: Pyralidae) including Plodia interpunctella, , Galleria mellonella, − and Achroia grisella ; as well as other macroinvertebrates e.g ., land snails Achatina Fulica . Among these, T.…”

Section: Introductionmentioning

confidence: 99%

Molecular-Weight-Dependent Degradation of Plastics: Deciphering Host–Microbiome Synergy Biodegradation of High-Purity Polypropylene Microplastics by Mealworms

He,

Ding,

Yang

et al. 2024

Environ. Sci. Technol.

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The biodegradation of polypropylene (PP), a highly persistent nonhydrolyzable polymer, by Tenebrio molitor has been confirmed using commercial PP microplastics (MPs) (M n 26.59 and M w 187.12 kDa). This confirmation was based on the reduction of the PP mass, change in molecular weight (MW), and a positive Δδ 13 C in the residual PP. A MW-dependent biodegradation mechanism was investigated using five high-purity PP MPs, classified into low (0.83 and 6.20 kDa), medium (50.40 and 108.0 kDa), and high (575.0 kDa) MW categories to access the impact of MW on the depolymerization pattern and associated gene expression of gut bacteria and the larval host. The larvae can depolymerize/biodegrade PP polymers with high MW although the consumption rate and weight losses increased, and survival rates declined with increasing PP MW. This pattern is similar to observations with polystyrene (PS) and polyethylene (PE), i.e., both M n and M w decreased after being fed low MW PP, while M n and/or M w increased after high MW PP was fed. The gut microbiota exhibited specific bacteria associations, such as Kluyvera sp. and Pediococcus sp. for high MW PP degradation, Acinetobacter sp. for medium MW PP, and Bacillus sp. alongside three other bacteria for low MW PP metabolism. In the host transcriptome, digestive enzymes and plastic degradation-related bacterial enzymes were up-regulated after feeding on PP depending on different MWs. The T. molitor host exhibited both defensive function and degradation capability during the biodegradation of plastics, with high MW PP showing a relatively negative impact on the larvae.

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Environmental risk, toxicity, and biodegradation of polyethylene: a review

El‐Sherif

Eloffy

Elmesery

et al. 2022

Environ Sci Pollut Res

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Gamma radiation effect on the midgut bacteria of Plodia interpunctella and its role in organic wastes biodegradation

Cited by 11 publications

References 34 publications

Comparison of three insect larvae biodegrading polyethylene and role of the intestinal bacterial strains in polyethylene degradation by Galleria mellonella larvae

Comparison of three insect larvae biodegrading polyethylene and role of the intestinal bacterial strains in polyethylene degradation by Galleria mellonella larvae

Molecular-Weight-Dependent Degradation of Plastics: Deciphering Host–Microbiome Synergy Biodegradation of High-Purity Polypropylene Microplastics by Mealworms

Environmental risk, toxicity, and biodegradation of polyethylene: a review

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