相关实验视频

Updated: Jul 14, 2025

Using Generative Art to Convey Past and Future Climate Transitions

Using Generative Art to Convey Past and Future Climate Transitions

Published on: March 31, 2023

极端天气事件是塑层演变的重要因素,但不是降解过程的重要因素

Katerina Karkanorachaki¹, Evdokia Syranidou¹, Nicolas Kalogerakis²

¹School of Chemical and Environmental Engineering, Technical University of Crete, GR-73100, Chania, Greece.

|October 6, 2023

概括

海洋塑料生物膜是各种真菌和细菌的宿主,但它们的社区不受塑料类型或风暴的影响. 这些塑料降解微生物为塑料污染提供了潜在的解决方案.

科学领域:

海洋微生物学海洋微生物学
环境科学环境科学
聚合物科学聚合物科学

背景情况:

海洋塑料垃圾为微生物殖民创造了一个新的息地,形成被称为塑料圈的生物膜.
这些塑圈社区可能含有能够降解塑料的微生物,为塑料污染提供了潜在的解决方案.
了解这些生物膜的组成和功能对于评估它们对环境的影响和潜在应用至关重要.

研究的目的:

描述在242天内在地中海殖民五种类型的塑料薄膜中的真菌和细菌群体.
为了研究严重风暴事件对微生物社区结构和继承的影响.
为了将微生物群落的变化与塑料样本的表面变化相关联.

主要方法:

在地中海化五种塑料薄膜类型 (HDPE,LDPE,PP,PS,PET) 242天.
在四个时间点对16SrRNA和ITS2核糖体区域进行测序,以分析细菌和真菌群落.
减弱总反射度里埃变换红外光谱 (ATR-FTIR) 用于评估塑料表面的化学变化.

主要成果:

细菌群落,由蛋白质细菌和细菌群主导,是高度可变和多样化的.
菌群体,主要是阿斯科米科塔,对破坏细菌殖民的重大风暴事件表现出了抵御力.
微生物社区结构独立于塑料聚合物类型,但塑料表面表现出时间依赖的气候变化.

结论:

这项研究提供了关于地中海海生态膜的长期发展的见解.
它是第一个分析微生物在极端天气事件后的重新附着和继承.
通常被忽视的真菌群体是塑料生物膜的重要组成部分,可能存在塑料降解潜力.

关键词:

在ATR-FTIR中使用.生物降解生物降解生物膜是一种生物膜.下一代测序测序是什么塑料塑料是一种塑料.

更多相关视频

Simulating Impacts of Ice Storms on Forest Ecosystems

Simulating Impacts of Ice Storms on Forest Ecosystems

Published on: June 30, 2020

Removal of Exogenous Materials from the Outer Portion of Frozen Cores to Investigate the Ancient Biological Communities Harbored Inside

Removal of Exogenous Materials from the Outer Portion of Frozen Cores to Investigate the Ancient Biological Communities Harbored Inside

Published on: July 3, 2016

相关概念视频

Global Climate Change

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

Threats to Biodiversity

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...

What is Weather?

What is Weather?

What is Climate?

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.

Factors Influencing Microbial Growth: Temperature

Factors Influencing Microbial Growth: Temperature

Microorganisms display remarkable adaptations, enabling them to thrive in diverse ecological niches across a wide range of temperatures. Temperature profoundly influences microbial growth by affecting enzymatic activity, membrane fluidity, and other cellular processes.Each microorganism operates within a specific temperature range defined by three cardinal points: minimum, optimum, and maximum. Below the minimum temperature, membranes lose fluidity, halting transport processes. Above the...