Endophytic Bacteria In The Phytodegradation Of Persistent Organic Pollutants

Abstract

Organic pollutants are released into the environment as a result of various human activities. Traditional physical and chemical methods for the clean-up of contaminated soil and water are often costly and invasive. A good alternative to the above methods is bacteriaassisted phytodegradation. Recently, particular attention has been focused on endophytic bacteria equipped with appropriate metabolic pathways, increasing the efficiency of organic compound degradation, and promoting plant growth. Endophytic bacteria are known to degrade various classes of organic compounds such as polycyclic aromatic hydrocarbons (PAHs), volatile and monocyclic organic compounds, explosives as well as pesticides. They may also assist the bioremediation of greenhouse gases such as methane and carbon dioxide. Additionally, endophytic bacteria can promote the growth and development of plants through a wide range of direct and indirect mechanisms, which also affect the effectiveness of phytoremediation processes. 1. Wprowadzenie. 2. Fitodegradacja zanieczyszczeń organicznych. 3. Źródła bakterii endofitycznych wspomagających procesy fitodegradacji. 4. Zanieczyszczenia organiczne degradowane przez bakterie endofityczne. 5. Genetyczne uwarunkowania degradacji ksenobiotyków przez endofity. 6. Mechanizmy wpływające na efektywność fitodegradacji wspomaganej przez endofity bakteryjne. 7. Podsumowanie

Sustainable Applications of Endophytic Bacteria and Their Physiological/Biochemical Roles on Medicinal and Herbal Plants: Review

“…DC.) degraded 2,4-Dichlorophenoxyacetic acid which is responsible for antimicrobial activity against pathogenic fungus causing balloon flower root rot [ 60 ]. Endophytic bacteria isolated from the leaves of pennywort ( Centella asiatica (L.) Urb.…”

Phenolic Compounds in the Built Environment

“…Phenol can be synthesized by a reaction between chlorobenzene and sodium hydroxide, or by oxidation of toluene, or by synthesis from benzene and propylene [41]. Phenol and its derivatives are used in several branches of industry: chemical production of alkylphenols, cresols, xylenols, phenolic resins, aniline and other compounds [44]; in oil and coal processing and metallurgy [45]. Phenol is also used in the production of pesticides, explosives, dyes, and textiles.…”

Fitorremediación: Alternativa biotecnológica para recuperar suelos contaminados con DDT. Una revisión

“…La fitoestabilización estabiliza contaminantes, principalmente metales y metaloides pesados del suelo en el área de la rizosfera, lo que puede prevenir su lixiviación o disminuir su biodisponibilidad (Sylvain et al, 2016;Najeeb, Ahmad, Zia, Malik & Zhou, 2017). Las plantas pueden degradar compuestos orgánicos utilizando sus propias enzimas, y a este proceso se le conoce como fitodegradación (Al-Baldawi, Abdullah, Anuar, Suja & Mushrifah, 2015; He et al, 2017;Chlebek & Hupert-Kocurek, 2019). En los suelos, la biodegradación de los contaminantes orgánicos se facilita por la actividad microbiana que es estimulada por las plantas, y a esta tecnología se le denomina fitoestimulación o rizodegradación (Glick, 2010;Melo et al, 2017).…”