کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4419228 1618937 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Air-borne xylene degradation by Bougainvillea buttiana and the role of epiphytic bacteria in the degradation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Air-borne xylene degradation by Bougainvillea buttiana and the role of epiphytic bacteria in the degradation
چکیده انگلیسی


• Bougainvillea buttiana had the highest xylene removal among thirteen plants.
• Microorganism-associated Bougainvillea leaves enhanced in quicker xylene removal.
• Xylene metabolites by Bougainvillea stems were investigated.
• E. cloacae LSRC11, Staphylococcus sp. A1 and P. aeruginosa involved in xylene removal.
• Bougainvillea stems played a major role in xylene uptake in plant cells.

The efficiency of xylene removal from contaminated air by thirteen perennial plants was studied. The results showed that Bougainvillea buttiana had the highest xylene removal efficiency. Different parts of B. buttiana such as stems, epicuticular waxes, and plant stomata (including microorganism-associated plant leaves) can uptake xylene 53.1±1.9%, 32.3±0.9, and 14.6±0.0%, respectively. Metabolite products found in treated plants may result from stress or defense compounds triggered by exposure to xylene. Moreover, possible degradation products in B. buttiana stems were analyzed after treatment with xylene at 100 ppm. Various metabolites in B. buttiana stems such as 2,6-dimethoxyphenol, 4-hydroxy-3,5-dimethoxy benzoic acid, 1-isopropyl-4-methylbenzene, p-tolualdehyde, 2,5-dimethoxy-4-methylbenzaldehyde, 2,4-dihydroxy-2,5-dimethyl-3(2H)-furanone, 3-methyl-2-butenal, dihydroxy acetone, propanedial, and many organic acids are related to the xylene degradation pathway. In addition, microorganism-associated B. buttiana leaves especially Enterobacter cloacae LSRC11, Staphylococcus sp. A1 and Pseudomonas aeruginosa enhanced the plant resulting in quicker xylene removal.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 126, April 2016, Pages 273–280
نویسندگان
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