在不同程度的恶化下,金沙土壤遗址的微生物群落的多样性和组成
Jing Li1, Yanqiu He2, Changjie He2
1Department of Microbiology, College of Resources, Sichuan Agricultural University, Yaan, 625000, China; College of Life Science, Sichuan University, Chengdu, 610065, China.
Environmental research
|November 20, 2023
概括
在金沙土土壤中的微生物群落通过和酸的生产加速了土壤的恶化. 环境因素和微生物相互作用对遗产遗址的保存有重大影响.
科学领域:
- 考古学的考古学
- 微生物学 微生物学
- 环境科学 环境科学
背景情况:
- 土壤遗址是重要的文化遗产,但导致其恶化的微生物因素尚未得到充分研究.
- 微生物在历史土结构的退化中发挥着重要作用.
研究的目的:
- 分析Jinsha土壤中的微生物群落及其与环境因素和恶化的关系.
- 识别特定的微生物群体及其促进遗址退化的代谢活动.
主要方法:
- 来自Jinsha土壤遗址的土壤样本具有不同程度的恶化程度,并分析了微生物群落.
- 微生物菌株的安普利康测序和分离被用来识别细菌和真菌种群.
- 评估了环境因素 (例如离子度) 和微生物代谢产物 (/酸产生).
主要成果:
- 较高的Mg2+和SO42-度与严重的土壤恶化相关.
- 细菌和真菌社区的多样性因季节性变化而异,并且与土壤离子含量 (Na+,K+,Mg2+,Ca2+) 有关.
- 行为细菌,Firmicutes,蛋白质细菌 (细菌) 和阿斯伯吉勒斯,克拉多斯波里亚,Penicillium (真菌) 是常见的;行为细菌和蛋白质细菌在严重恶化的土壤中得到了丰富.
- 细菌分离物主要产生,而真菌分离物产生和酸,而产生酸的真菌与严重恶化有关.
结论:
- 土壤微生物群落,特别是生产的细菌和产生酸的真菌,大大导致了金沙土壤遗址的恶化.
- 环境因素与微生物群落相互作用,加速退化过程,威胁到这种文化遗产的长期保存.
相关概念视频
Diversity of Archaea IV
315
Hyperthermophilic archaea are a group of extremophiles thriving at temperatures above 80°C, often in hydrothermal vents and volcanic soils where conditions surpass the boiling point of water. At such temperatures, proteins, membranes, and DNA in most organisms degrade, but hyperthermophiles have evolved remarkable adaptations to maintain stability and function.Unique Cellular FeaturesHyperthermophilic membranes are composed of a monolayer of biphytanyl tetraether lipids, which resist...
315
Diversity of Archaea III
239
Crenarchaeota, a prominent phylum of Archaea, is remarkable for its ability to thrive in extreme environments characterized by high temperatures and acidity. These microorganisms inhabit sulfuric hot springs, volcanic systems, and submarine hydrothermal vents, where temperatures often exceed 100°C. The unique adaptations of Crenarchaeota not only allow survival under such extreme conditions but also provide insights into the mechanisms of life in primordial Earth-like...
239
Diversity of Archaea II
343
Archaea, one of the three domains of life, exhibit remarkable diversity and adaptability, thriving in both extreme and moderate environments. Historically, most identified archaea have been classified into two major phyla: Euryarchaeota and Crenarchaeota. However, recent molecular studies have expanded this classification to include three additional phyla: Thaumarchaeota, Nanoarchaeota, and Korarchaeota, each exhibiting unique characteristics and ecological roles.Thaumarchaeota: Mesophiles...
343
Diversity of Archaea I
391
Archaea, a domain of single-celled microorganisms, are classified into five major phyla based on genetic and biochemical characteristics: Euryarchaeota, Crenarchaeota, Thaumarchaeota, Korarchaeota, and Nanoarchaeota. Among these, the phylum Euryarchaeota is notable for its remarkable diversity in morphology, metabolism, and ecological adaptations.Morphological and Metabolic DiversityMembers of Euryarchaeota exhibit a variety of cellular shapes, including rods and cocci. Their metabolic pathways...
391
Bioremediation
21.9K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
21.9K


