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Título del libro: Advances In Yeast Biotechnology For Biofuels And Sustainability: Value-Added Products And Environmental Remediation Applications
Título del capítulo: Yeast?plant interactions for phytoremediation of contaminated soils

Autores UNAM:
DULCE MARIA ARIAS LIZARRAGA; UGOCHUKWU PATRICK OKOYE;
Autores externos:

Idioma:

Año de publicación:
2023
Palabras clave:

Bioaugmentation; Heavy metals; Persistent organic pollutans; Phytodegradation; S. cerevisiae


Resumen:

The increase in agricultural and industrial activities has resulted in the direct or indirect release of several pollutants into the environment without adequate treatment, causing extensive damage to water and soil. Thus, cost-effective biological and engineering strategies for the remediation of polluted terrestrial ecosystems have become one of the current areas of research interest. Phytoremediation carried out by plants with microbes, especially yeasts, represents an environmentally friendly alternative to restoring clean environment. Yeast species benefit from root oxygen, exudates, mucilage, and decaying root cells, while yeast promotes plant growth directly or indirectly because they produce active substances (i.e., phytohormones, exopolysaccharides, amino acids, vitamins, chelating agents, among others) and phytohormone, that oxidizes N and S, solubilizes P or Zn, captures Fe, and inhibits pathogens. This chapter highlights synergic interactions between the plants and the yeasts during phytoremediation, emphasizing the dynamics between the plants, yeasts, and contaminants removal. Recent strategies to enhance the phytoremediation of heavy metals, organic compounds, and petroleum-based chemicals are based on yeast bioaugmentation, nutrient solubilization, and biomolecule production. Plants and yeast have been explored to eliminate several contaminants. Notable yeast species from genera Saccharomyces sp., Debaryomyces sp., Lachancea sp., Candida sp., lipolytica Cryptococcus sp., Rhodotorula sp., and Streptomyces sp., have resulted in enhanced biomass growth and increased organic pollutants removal (up to 81%) and improved heavy metals phytostabilization. Hence, enhanced biomass growth benefits further use of the biomass produced after phytoextraction, especially for bioenergy production. © 2023 Elsevier Inc. All rights reserved.


Entidades citadas de la UNAM: