从 Pseudoalteromonas sp. 的基因组规模代谢途径中开采阿里硫酶. SR43-6及其基于的脱硫应用
Songzhi Li1,2, Yang Guo2, Hong Jiang3,4
1College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, PR China.
ACS omega
|May 12, 2025
概括
一种来自Pseudoalteromonas sp.的新型酸酶. SR43-6有效地从中去除硫酸盐组,提高其凝强度和质量. 这种酶去硫化提供了一种温和的,环保的方法来改善属性.
科学领域:
- 酶学 是一种酶学.
- 海洋微生物学 海洋微生物学
- 生物技术是生物技术.
背景情况:
- 阿里硫酶酶对于裂解硫酸乙烯键至关重要.
- 阿加的脱硫影响了阿加凝的强度和质量.
- 为特定应用确定新型酶是一个正在进行的研究领域.
研究的目的:
- 鉴定和表征一种来自Pseudoalteromonas sp.的新型硫酸酶. 在SR43-6.6中,我们可以看到
- 评价该酶在从格利迪 (Gelidium amansii) 和格拉西拉里亚 (Gracilaria lemaneiformis) 中脱硫的有效性.
- 评估酶脱硫对阿加凝强度的影响.
主要方法:
- 从Pseudoalteromonas sp.中分离和表征基硫酸酶 (Ps-Ars) 的情况. 在SR43-6.6中,我们可以看到
- 酶活性测定使用p-nitrophenyl硫酸盐作为基质.
- 在G. amansii和G. lemaneiformis agar.中进行酶去硫化.
- 在酶处理前后测量凝强度.
主要成果:
- 鉴定了一种新型的酸酶,Ps-Ars,在35°C和pH值8.0时具有最佳活性.
- Ps-Ars显示出较高的相对活性 (206个单位/毫克),并有效地从G. amansii (86.4%在4小时内) 和G. lemaneiformis (71.3%在8小时内) 中去除了硫酸盐组.
- 酶治疗显著提高了G. amansii agar凝强度的32%,以及G. lemaneiformis agar凝强度.
结论:
- 使用Ps-Ars的酶性甲脱硫是一种温和,质量维护和环保的过程.
- 这种方法显示了工业应用在提高质量的显著潜力.
- 这些发现有助于了解酸硫酸酶的功能和海洋酶的生物技术应用.
相关概念视频
Sulfur Assimilation
554
Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
554
Overview of Archaea
1.9K
Archaea, named after the Archaean eon, represent a unique domain of life, distinct from bacteria and eukaryotes, with remarkable traits. Their cellular and molecular features, ecological adaptability, and industrial relevance highlight their importance in understanding life processes and leveraging biotechnology.Cellular and Molecular CharacteristicsA defining feature of archaea is their unique membrane composition. Archaeal membranes contain ether-linked isoprenoid lipids, which confer...
1.9K
Microbes and the Sulfur Cycle
123
Sulfur is a vital element in Earth's biogeochemical systems. It transitions through various inorganic states, including sulfate (SO₄²⁻), elemental sulfur (S⁰), and sulfide (S²⁻). Abiotic and biological mechanisms across oxic and anoxic environments intricately mediate these transformations. Sulfate, the most oxidized form of sulfur, is predominantly stored in rocks, marine sediments, and oceanic waters, acting as a long-term reservoir in the global sulfur...
123
Microbial Bioremediation of Uranium
103
Microorganisms play a critical role in the transformation and immobilization of uranium in contaminated environments through four main pathways: bioreduction, biosorption, bioaccumulation, and biomineralization. These mechanisms reduce uranium’s toxicity and prevent its migration through groundwater systems, offering sustainable approaches for in situ bioremediation.Bioreduction of UraniumBioreduction is driven by anaerobic bacteria such as certain strains of Geobacter and Shewanella,...
103
Microbial Leaching
227
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
227
Acid Mine Drainage
112
Mining activities that disturb sulfide-rich rocks, particularly those containing pyrite (FeS₂), initiate a cascade of geochemical and microbiological processes with serious environmental implications. When exposed to air and water, pyrite undergoes oxidation, releasing sulfate, ultimately forming sulfuric acid and mobilizing heavy metals into surrounding water systems. This phenomenon, known as acid mine drainage (AMD), results in low pH waters laden with toxic elements that threaten...
112


