通过放大alkB基因表达和细菌驱动的碳化合物降解来提高百慕大草 (Cynodon dactylon L.) 的系统耐受性
Sehrish Iqbal1, Ume Ummara2, Sibgha Noreen3
1Department of Environmental Science, The Women University Multan, Multan, Pakistan.
Environmental science and pollution research international
|February 17, 2024
概括
细菌注射剂改善了百慕大草的生长和对石油污染土壤的耐压力. 这些微生物增强了植物生物质,增强了抗氧化防御,并降解了碳化合物,显示了植物修复的希望.
科学领域:
- 环境微生物学 环境微生物学
- 植物科学 植物科学
- 生物修复是一种生物修复.
背景情况:
- 石油碳化合物污染对环境构成重大风险.
- 百慕大草 (Cynodon dactylon L.) 是一种有价值的草草种.
- 促进植物生长的细菌可以减轻植物的压力.
研究的目的:
- 评估石油污染对百慕大草原的影响.
- 评估细菌注射剂在减轻石油毒性的有效性.
- 调查碳化合物降解和植物中的细菌持久性.
主要方法:
- 百慕大草被暴露在被石油污染的土壤中 (5和10克公斤-1).
- 细菌注射剂 (Arthrobacter oxydans ITRH49和Pseudomonas sp. 这两种类型的细菌). MixRI75) 应用到土壤和种子上.
- 分析了形态,生化和分子参数.
主要成果:
- 细菌注射剂显著增强了芽和根的新鲜/干燥重量.
- 免疫剂增强了酶和非酶的抗氧化活性,以对抗氧化应激.
- 碳化合物的最大降解率 (75%) 在5gkg−1的石油污染下被观察到.
- 细菌持久性和烯氧酶基因表达在根系中较高.
结论:
- 促进植物生长的细菌有效缓解石油污染土壤中的非生物压力.
- 细菌注射剂增强了百慕大草的弹性和植物修复潜力.
- 微生物应用是石油碳化合物污染土壤修复的有利策略.
相关概念视频
Bioremediation
18.4K
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.
18.4K
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
Transgenic Plants
7.2K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
7.2K


