Bioremediation of Cd-DDT co-contaminated soil using the Cd-hyperaccumulator Sedum alfredii and DDT-degrading microbes

Combined remediation of Cd–phenanthrene co-contaminated soil by Pleurotus cornucopiae and Bacillus thuringiensis FQ1 and the antioxidant responses in Pleurotus cornucopiae

“…The maximum increase (43.58%) was obtained in Cd10 group without Phe addition compared with M group. This growth enhancement in co-contaminated soil remediation was similar to some previously reported studies, which showed that heavy metal-resistant and/or organic pollutant-degrading microbes could enhance the growth of plants or mushrooms (Gao et al, 2006;Ji et al, 2012;Li and Wong, 2012;Zhu et al, 2012). This might be due to the production of some growth-promoting factors by the microbes added into soil, such as indole-3-acetic acid (IAA), siderophores and 1-aminocyclopropane-1-carboxylate (ACC) deaminase.…”

Bioavailability of Heavy Metals in Soil: Impact on Microbial Biodegradation of Organic Compounds and Possible Improvement Strategies

“…The bacterium used in this study also increased the removal of phenanthrene [192]. Another study demonstrated that the planting of S. alfredii in addition to inoculation of a DDT degrading strain DDT-1 to potted soils could increase the root biomass of S. alfredii [193]. This resulted in effective phytoextraction of Cd from co-contaminated soils as well as enhanced rhizodegradation of DDT in the soil.…”

Roles of saprotrophic fungi in biodegradation or transformation of organic and inorganic pollutants in co-contaminated sites

“…The presence of plants can induce higher bacterial and fungal biodiversity in soils contaminated with metals and PAH than in bare soil (Bourceret et al 2016). The integration of bacteria, fungi and plants could improve the efficacy of bioremediation processes, both in soil and water systems (Zhu et al 2012;Arjoon et al 2013). For instance, bacteria and fungi could promote plant growth, protect plant roots from chemical stress, degrade xenobiotics, transfer or immobilize metals, while plants can provide nutrients for microorganisms, improve microbial biodegradation, and translocate metals to roots and shoots for compartmentation or volatilization (Zhu et al 2012;Chirakkara et al 2016).…”

“…xenobiotics that can accumulate because of human industrial or agricultural activities (Brandl et al 2001;Srivastava and Thakur 2006;Cui and Zhang 2008;Sharaf and Alharbi 2013;Sharma and Malaviya 2016). It is common to find soils and wastewaters containing toxic elements along with pesticides, and herbicides but also mineral oils and petroleum derivatives, diesel oil, plastics, explosives, chlorinated solvents, and by-products and waste arising from human activities, such as electronic waste (Brandl et al 2001;Coulibaly et al 2003;Alisi et al 2009;Stenuit and Agathos 2010;Dewey et al 2012;Zhu et al 2012;Zhou et al 2015;Chirakkara et al 2016;Alvarez et al 2017). The presence of organic and inorganic pollutants can also occur in food, e.g.…”

“…Toxic metals and xenobiotic compounds (such as persistent organic pollutants, pesticides and PAH) are often present and recognized as two major chemical group that are responsible for soil and water pollution worldwide (Wu et al 2016;Hong et al 2010;Ye et al 2017;Zhu et al 2012;Wang et al, 2017). In Europe, around 342 thousand are the identified contaminated sites (2.5 millions are estimated potential contaminated ones) and toxic metals and mineral oil contribute for around 60% to soil pollution (Panagos et al 2013).…”