相关实验视频
Updated: Jun 28, 2025

10:10
Screening of Tobacco Genotypes for Phytophthora nicotianae Resistance
Published on: April 15, 2022
3.4K
在烟草种植土壤中培养和应用尼古丁降解细菌和环境功能
Yiting Wang1, Xiangyan Luo1, Peng Chu1
1State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
Bioresources and bioprocessing
|April 22, 2024
概括
从烟草土壤中分离出尼古丁降解细菌 (NDB),发现了一些新型属. 高效的NDB菌株减少了堆肥中的尼古丁,关键的降解基因与土壤尼古丁水平相关,提供了环境监测潜力.
科学领域:
- 环境微生物学环境微生物学
- 土壤科学 土壤科学
- 生物修复是一种生物修复.
背景情况:
- 烟草中的尼古丁是一种环境污染物.
- 烟草土壤中尼古丁降解细菌 (NDB) 的作用和多样性尚不清楚.
研究的目的:
- 从烟草土壤中分离和描述NDB.
- 为了评估在尼古丁降解中选择的NDB菌株的效率.
- 为了研究土壤中丰富的尼古丁降解基因.
主要方法:
- 从烟草土壤中分离和识别了52种NDB菌株.
- 对高效的NDB菌株 (Arthrobacter nitrophenolicus ND6, Stenotrophomonas geniculata ND16) 进行查,以检测它们在堆肥中的尼古丁降解.
- 基因组分析和元基因组分析以确定降解途径和基因.
主要成果:
- 已经确定了主要的属:Flavobacterium,Pseudomonas,Arthrobacter. 报道了奇丁菌和菌的新属.
- 在烟草废弃物堆肥中,NDB注射使烟草废弃物堆肥中的尼古丁从1.5毫克/克降至0.5毫克/克以下.
- 五个关键的尼古丁降解基因 (ndhA, nctB, kdhL, nboR, dhponh) 的丰度与土壤尼古丁度有正相关.
结论:
- 烟草土壤含有多样化的NDB,包括能够有效降解尼古丁的新物种.
- 用NDB堆肥烟草废物是尼古丁生物修复的可行应用.
- 关键的尼古丁降解基因可以作为监测环境尼古丁水平的生物标志物.
相关概念视频
Bioremediation
18.3K
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.
18.3K
The Roles of Bacteria and Fungi in Plant Nutrition
35.3K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
35.3K
Transgenic Organisms
31.1K
Overview
31.1K
Plant Breeding and Biotechnology
18.9K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.9K
Overview of Nitrogen Metabolism
7.9K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.9K

