Phenolic compounds are contaminants frequently found in water and soils. In the last years, some technologies such as phytoremediation have emerged to remediate contaminated sites. Plants alone are unable to completely degrade some pollutants; therefore, their association with rhizospheric bacteria has been proposed to increase phytoremediation potential, an approach called rhizoremediation. In this work, the ability of two rhizobacteria, Burkholderia kururiensis KP 23 and Agrobacterium rhizogenes LBA 9402, to tolerate and degrade phenolic compounds was evaluated. Both microorganisms were capable of tolerating high concentrations of phenol, 2,4-dichlorophenol (2,4-DCP), guaiacol, or pentachlorophenol (PCP), and degrading different concentrations of phenol and 2,4-DCP. Association of these bacterial strains with B. napus hairy roots, as model plant system, showed that the presence of both rhizospheric microorganisms, along with B. napus hairy roots, enhanced phenol degradation compared to B. napus hairy roots alone. These findings are interesting for future applications of these strains in phenol rhizoremediation processes, with whole plants, providing an efficient, economic, and sustainable remediation technology.

译文

酚类化合物是经常在水和土壤中发现的污染物。在过去的几年中,出现了一些技术,例如植物修复技术,以修复受污染的场所。仅植物无法完全降解某些污染物; 因此,已经提出了它们与根际细菌的结合,以提高植物修复的潜力,一种称为根际修复的方法。在这项工作中,评估了两种根瘤菌Burkholderia kururiensis KP 23和发根农杆菌LBA 9402耐受和降解酚类化合物的能力。两种微生物均能够耐受高浓度的苯酚,2,4-二氯苯酚 (2,4-dcp),愈创木酚或五氯苯酚 (PCP),并降解不同浓度的苯酚和2,4-dcp。这些细菌菌株与油菜B毛状根的关联 (作为模型植物系统) 表明,与单独的油菜B毛状根相比,根际微生物以及油菜B毛状根的存在增强了苯酚降解。这些发现对于这些菌株在整个植物的苯酚根际修复过程中的未来应用非常有趣,从而提供了一种有效,经济和可持续的修复技术。

+1
+2
100研值 100研值 ¥99课程
检索文献一次
下载文献一次

去下载>

成功解锁2个技能,为你点赞

《SCI写作十大必备语法》
解决你的SCI语法难题!

技能熟练度+1

视频课《玩转文献检索》
让你成为检索达人!

恭喜完成新手挑战

手机微信扫一扫,添加好友领取

免费领《Endnote文献管理工具+教程》

微信扫码, 免费领取

手机登录

获取验证码
登录