A polystyrene-degrading Acinetobacter bacterium isolated from the larvae of Tribolium castaneum

Wang, Zhe; Xin, Xin; Shi, Xiaofan; Zhang, Yalin

doi:10.1016/j.scitotenv.2020.138564

Cited by 136 publications

(52 citation statements)

References 34 publications

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“…Newly-isolated Acinetobacter sp. AnTc-1 from a larva of Tribolium castaneunm can mediate the biodegradation of PS [ 17 ]. Thus, the gut bacteria of these worms play an essential role in the plastic biodegradation process.…”

Section: Introductionmentioning

confidence: 99%

“…We have further identified and verified that serine hydrolase (SH), a candidate enzyme, participates in the plastic biodegradation process, via RT-qPCR analyses and enzyme inhibitor treatment assays [ 8 ]. Besides Pseudomonas sp., several other gut bacteria in worms have also been reported to participate in the biodegradation process of ingested plastics [ 15 , 16 , 17 ]. Although, single bacterial species can degrade several plastic types, the biodegradation efficiencies toward each different type of plastic vary enormously [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Biodegradation Efficiency of Four Various Types of Plastics by Pseudomonas aeruginosa Isolated from the Gut Extract of Superworms

et al. 2020

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Plastic waste worldwide is becoming a serious pollution problem for the planet. Various physical and chemical methods have been tested in attempts to remove plastic dumps. However, these have usually resulted in secondary pollution issues. Recently, the biodegradation of plastic by fungal and bacterial strains has been spotlighted as a promising solution to remove plastic wastes without generating secondary pollution. We have previously reported that a Pseudomonas aeruginosa strain isolated from the gut of a superworm is capable of biodegrading polystyrene (PS) and polyphenylene sulfide (PPS). Herein, we demonstrate the extraordinary biodegradative power of P. aeruginosa in efficiently depolymerizing four different types of plastics: PS, PPS, polyethylene (PE) and polypropylene (PP). We further compared biodegradation rates for these four plastic types and found that PE was biodegraded fastest, whereas the biodegradation of PP was the slowest. Moreover, the growth rates of P. aeruginosa were not always proportional to biodegradation rates, suggesting that the rate of bacterial growth could be influenced by the composition and properties of intermediate molecules produced during plastic biodegradation, and these may supply useful cellular precursors and energy. In conclusion, an initial screening system to select the most suitable bacterial strain to biodegrade certain types of plastic is particularly important and may be necessary to solve plastic waste problems both presently and in the future.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of the Biodegradation Efficiency of Four Various Types of Plastics by Pseudomonas aeruginosa Isolated from the Gut Extract of Superworms

et al. 2020

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“…Dysgonomonas has been found on multiple continents in several species of dung beetles in the genera Onthophagus and Euoniticellus (Parker, Newton, & Moczek, 2020), and members of the genus carry nitrogen fixation genes (Inoue et al, 2015) while others break down lignocellulose in the guts of termites (Sun, Yang, Zhang, Shen, & Ni, 2015). Acinetobacter is a widespread genus of aerobic bacteria that has been isolated from cattle rumen (Chang, Rhee, Jeong, Kim, & Kim, 2015) and insects such as red flour beetles (Wang, Xin, Shi, & Zhang, 2020). Acinetobacter may aid Phanaeus in breaking down difficult components of dung, as previous studies have shown members of the genus to digest recalcitrant polysterenes (Wang, Xin, Shi, & Zhang, 2020), lipids, and esters (Kok, Christoffels, Vosman, & Hellingwerf, 1993).…”

Section: Discussionmentioning

confidence: 99%

“…Acinetobacter is a widespread genus of aerobic bacteria that has been isolated from cattle rumen (Chang, Rhee, Jeong, Kim, & Kim, 2015) and insects such as red flour beetles (Wang, Xin, Shi, & Zhang, 2020). Acinetobacter may aid Phanaeus in breaking down difficult components of dung, as previous studies have shown members of the genus to digest recalcitrant polysterenes (Wang, Xin, Shi, & Zhang, 2020), lipids, and esters (Kok, Christoffels, Vosman, & Hellingwerf, 1993). Together our results and those from previous studies suggest that taxa in the genera Acintobacter and Dysgonomnas are likely vertically-transmitted, core members of the dung beetle microbiome.…”

Section: Discussionmentioning

confidence: 99%

Drivers of inter-population variation in the gut microbiomes of sister species ofPhanaeusdung beetles

Winfrey

Sheldon

2021

Preprint

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The microbiome plays key roles in host physiology and ecology, but how the microbiome varies among populations of hosts is not well understood. However, different abiotic and biotic selection pressures across a species' range likely lead to variation in the microbiome. In addition, symbiotic microbiota may differ more between closely-related species in sympatry than in allopatry if selection favors the reduction of interspecific competition. We investigated variation in the maternally-transmitted, beneficial gut microbiomes of Phanaeus vindex and P. difformis, sister species of dung beetle that compete for the same resources in sympatry and occur across diverse climatic conditions. We sampled and sequenced bacterial/archaeal 16S rDNA from guts of P. difformis and P. vindex collected across 17 sympatric and allopatric sites. Gut microbial communities were best predicted by temperature and precipitation, cattle present at sites, and spatial relationships among sites. Contrary to our hypotheses, we did not find that the gut microbial communities of P. vindex and P. difformis differed more in sympatry than in allopatry, nor that P. vindex, the more broadly distributed of the two species, exhibited greater microbiome turnover among populations. However, the gut microbiome of P. vindex shifted more between sympatric and allopatric populations than did that of P. difformis, suggesting character displacement. While more research is needed, it is possible that differences in gut microbial communities allow P. vindex and P. difformis to partition their niches in sympatry. Our work argues for further exploration of the gut microbiome's potential role in niche partitioning and local adaptation.

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“…En otro estudio se aisló una bacteria: Acinetobacter sp. AnTc-1 del tracto intestinal de larvas de T. castaneum capaces de masticar y digerir XPS (Wang, Xin, Shi & Zhang, 2020). Los experimentos de NMR, TGA, GPC y microscopía electrónica (SEM y TEM) confirmaron la presencia de modificaciones estructurales, la formación de grupos funcionales y la disminución en el peso molecular del PS después de un periodo de 20 días de incubación de la cepa AnTc-1.…”

Section: Biodegradación De Plásticos Por Larvas De La Harina (Coleoptera: Tenebrionidae)unclassified

Biodegradación de espumas plásticas por larvas de insectos: ¿una estrategia sustentable?

et al. 2021

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En la actualidad, la mayoría de las actividades humanas dependen en gran medida del uso de los plásticos, cuya producción y consumo han aumentado considerablemente en las últimas décadas. La utilización de productos plásticos ha tenido impactos positivos para nuestro bienestar; sin embargo, los efectos negativos derivados de su disposición inapropiada son motivo de gran preocupación, especialmente durante la actual emergencia sanitaria provocada por la COVID-19, en la que el uso de plásticos por una ocasión ha aumentado drásticamente. A pesar de que algunos polímeros plásticos como el polietileno (PE) y el poliestireno (PS) pueden reciclarse, la alta demanda energética y tecnológica, el empleo de sustancias potencialmente tóxicas y la baja rentabilidad económica del proceso, vuelven a esta opción poco viable. Ante esta situación, el tratamiento biológico de plásticos a través de organismos degradadores del PE y del PS, como las larvas de la harina y de la cera, surge como una alternativa prometedora y ha llamado la atención de investigadores alrededor del mundo. El objetivo de esta revisión es sintetizar los avances más recientes en el campo de la biodegradación de plásticos por larvas de insectos y un análisis de las tendencias actuales y futuras en esta creciente área de investigación.

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A polystyrene-degrading Acinetobacter bacterium isolated from the larvae of Tribolium castaneum

Cited by 136 publications

References 34 publications

Evaluation of the Biodegradation Efficiency of Four Various Types of Plastics by Pseudomonas aeruginosa Isolated from the Gut Extract of Superworms

Evaluation of the Biodegradation Efficiency of Four Various Types of Plastics by Pseudomonas aeruginosa Isolated from the Gut Extract of Superworms

Drivers of inter-population variation in the gut microbiomes of sister species ofPhanaeusdung beetles

Biodegradación de espumas plásticas por larvas de insectos: ¿una estrategia sustentable?

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