研究微生物多样性的动态变化和相关性,关键酶活性和烟草叶中的常规成分在老化过程中的研究
Wen Cai1,2, Qian-Ying Zhang1, Peng-Cheng Zhu3
1China Tobacco Technology Innovation Center for Cigar, China Tobacco Sichuan Industrial Co., Ltd, Chengdu, 610066, China.
Bioresources and bioprocessing
|November 5, 2025
概括
这项研究揭示了微生物群落和酶活动如何在老化过程中影响烟草叶的化学成分. 粉和醇等关键化合物发生变化,影响烟草的质量,并为精密发酵提供了洞察力.
科学领域:
- 农业科学 农业科学
- 微生物学 微生物学
- 生物化学 生物化学
背景情况:
- 烟草叶的老化对于开发特有的风味和品质至关重要.
- 了解在衰老过程中微生物代谢,酶作用和化学成分之间的相互作用是必不可少的.
研究的目的:
- 研究微生物新陈代谢和酶活性对强烈口味烟雾制烟草叶 (SCTL) 和轻口味烟雾制烟草叶 (FCTL) 在老化过程中的化学成分和质量的影响.
- 为了确定微生物群落,酶活动和烟草叶化合物之间的相关性.
主要方法:
- 高通量测序用于微生物社区分析.
- PICRUSt2/MetaCyc数据库用于微生物的功能预测.
- 烟草叶成分 (粉,糖,,,类) 和酶活动的动态分析.
- 冗余分析 (RDA) 用于关联微生物和化学数据.
主要成果:
- 微生物社区结构在不同的烟草叶等级中是相似的.
- 粉和总在衰老过程中显著下降;减少糖和总糖波动.
- 在SCTL中,粉含量较高,而相对于FCTL,醇,降解糖和总糖含量较低.
- 降解糖,总糖和粉与叶子等级正相关;和总与叶子等级负相关.
- 在微生物种群,酶活动和烟草叶化合物之间发现了显著的相关性.
结论:
- 微生物群落和酶活动在老化过程中改变烟草叶的组成方面发挥着重要作用.
- 这些发现为选择特定的微生物菌株和开发用于烟草老化的精密发酵策略提供了基础.
更多相关视频
10:50Transcript and Metabolite Profiling for the Evaluation of Tobacco Tree and Poplar as Feedstock for the Bio-based Industry
Published on: May 16, 2014
15.6K
09:07Author Spotlight: Development and Characterization of an In Vitro Model to Study Chronic Cigarette Smoke Exposure and Its Impact on Airway Epithelial Cells in COPD Research
Published on: July 12, 2024
1.8K
相关概念视频
01:19The Effect of Aging on Tissues
3.1K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
3.1K
01:31Chemical Factors Affecting Respiration Centers
2.0K
Chemical factors such as changing CO2, O2, and H+ levels in arterial blood play a critical role in influencing respiration depth and rates. These variations are detected by chemoreceptors—specialized sensors located in two primary body areas. Central chemoreceptors are found throughout the brain stem, including the ventrolateral medulla, while peripheral chemoreceptors are located in the aortic arch and carotid arteries.
CO2 has a potent influence on respiration and is strictly regulated....
CO2 has a potent influence on respiration and is strictly regulated....
2.0K
01:27Factors Influencing Microbial Growth: Temperature
1.0K
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...
1.0K