Abstract：
:Environmental pollution by plastic debris is estimated on a scale of 100 million metric tons, a portion of which is fragmented into micro- and nanoplastics. These fragments are often colonized by bacterial species in marine environments, possibly contributing to the biodegradation of such materials. However, further investigations are necessary to determine the impact of abiotic polymer weathering on biofilm adhesion, as well as the specific biofilm formation strategies employed by marine isolates. Here, we evaluate deep-sea sediment bacterial isolates for biofilm adhesion, extracellular matrix production, and polymer degradation ability. Our study focuses on high-density polyethylene (HDPE) fragments for their high durability and environmental persistence, subjecting fragments to abiotic weathering prior to bacterial colonization. Marine isolates identified as Pseudomonas sp. and Lysinibacillus sp. exhibited decreasing biofilm formation on weathered HDPE, especially over the first 24 h of incubation. This effect was countered by increased extracellular matrix production, likely improving cell adhesion to surfaces roughened by abiotic degradation. These adhesion strategies were contrasted with a reference Pseudomonas aeruginosa strain, which displayed high levels of biofilm formation on non-weathered HDPE and lower extracellular matrix production over the first 24 h of incubation. Furthermore, our results suggest that an increase in biofilm biomass correlated with changes to HDPE structure, indicating that these strains have a potential for biodegradation of plastic fragments. Therefore, this work provides a detailed account of biofilm formation strategies and bacteria-plastic interactions that represent crucial steps in the biodegradation of plastic fragments in marine environments.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Oliveira MM,Proenca AM,Moreira-Silva E,de Castro AM,Dos Santos FM,Marconatto L,Medina-Silva Rdoi
10.1007/s00248-020-01666-8subject
Has Abstractpub_date
2021-01-03 00:00:00eissn
0095-3628issn
1432-184Xpii
10.1007/s00248-020-01666-8pub_type
杂志文章abstract：:Bark beetles are the most important mortality agent in coniferous forests, and pheromones play important roles in their management. Dendroctonus valens LeConte was introduced from North America to China and has killed millions of healthy pines there. Trapping with semiochemicals and pheromones was deployed in D. valen...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-015-0625-4
更新日期：2015-11-01 00:00:00
abstract：:Arcellininids (testate amoebae) were examined from 61 surface sediment samples collected from 59 lakes in the vicinity of former gold mines, notably Giant Mine, near Yellowknife, Northwest Territories, Canada to determine their utility as bioindicators of arsenic (As), which occurs both as a byproduct of gold extracti...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-016-0752-6
更新日期：2016-07-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00248-018-1291-0
更新日期：2019-08-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-014-0494-2
更新日期：2015-04-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-006-9010-7
更新日期：2006-11-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s002480000063
更新日期：2001-02-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF00165908
更新日期：1992-01-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-010-9719-1
更新日期：2011-01-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-017-1071-2
更新日期：2018-02-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02010388
更新日期：1980-09-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-019-01471-y
更新日期：2020-07-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-007-9340-0
更新日期：2008-08-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-016-0783-z
更新日期：2016-08-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-004-0117-4
更新日期：2005-08-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章,评审
doi：10.1007/s00248-013-0236-x
更新日期：2013-07-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-011-9906-8
更新日期：2011-11-01 00:00:00
abstract：:The long-term disposal of radioactive wastes in a deep geological repository is the accepted international solution for the treatment and management of these special residues. The microbial community of the selected host rocks and engineered barriers for the deep geological repository may affect the performance and th...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-015-0630-7
更新日期：2015-11-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02010484
更新日期：1985-06-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-013-0270-8
更新日期：2013-11-01 00:00:00
abstract：:Extreme environments such as the Antarctic can lead to the discovery of new microbial taxa, as well as to new microbial-derived natural products. Considering that little is known yet about the diversity and the genetic resources present in these habitats, the main objective of this study was to evaluate the fungal com...
journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2019-01-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF00167789
更新日期：1992-11-01 00:00:00
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更新日期：2020-08-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-010-9723-5
更新日期：2010-08-01 00:00:00
abstract：:Bats are important zoonotic reservoirs for many pathogens worldwide. Although their highly specialized ectoparasites, bat flies (Diptera: Hippoboscoidea), can transmit Bartonella bacteria including human pathogens, their eco-epidemiology is unexplored. Here, we analyzed the prevalence and diversity of Bartonella strai...
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pub_type： 杂志文章
doi：10.1007/s00248-018-1195-z
更新日期：2018-11-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02153225
更新日期：1986-03-01 00:00:00
abstract：:Many sponges host abundant and active microbial communities that may play a role in the uptake of dissolved organic matter (DOM) by the sponge holobiont, although the mechanism of DOM uptake and metabolism is uncertain. Bulk and compound-specific isotopic analysis of whole sponge, isolated sponge cells, and isolated s...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-019-01410-x
更新日期：2020-02-01 00:00:00
abstract：:The influence of bacterial communities on the formation of carbonate deposits such as moonmilk was investigated in Altamira Cave (Spain). The study focuses on the relationship between the bacterial communities at moonmilk deposits and those forming white colonizations, which develop sporadically throughout the cave. U...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-010-9731-5
更新日期：2011-01-01 00:00:00
abstract：:Francisella tularensis is associated with water and waterways and infects many species of animals, insects, and protists. The mechanism Francisella utilizes to persist in the environment and in tick vectors is currently unknown. We have demonstrated for the first time that Francisella novicida, a model organism of F. ...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-009-9586-9
更新日期：2010-04-01 00:00:00
abstract：:Understanding the pathogenic potential of a new pathogen strain or a known pathogen in a new locale is crucial for management of disease in both wild and farmed animals. The Ostreid herpesvirus-1 (OsHV-1), a known pathogen of early-life-stage Pacific oysters, Crassostrea gigas, has been associated with mortalities of ...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-011-9937-1
更新日期：2012-04-01 00:00:00
abstract：:This study evaluated the effect of the antiretroviral ritonavir on protease secretion in different strains of Cryptococcus neoformans isolated from the environment and investigated the expression of heat shock protein (Hsp90), classically described virulence factors in other yeast in the presence of the same antiretro...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-016-0900-z
更新日期：2017-04-01 00:00:00
