Enhancing Decontamination of PAHs-Polluted Soils: Role of Organic and Mineral Amendments

2017 ◽  
pp. 339-368 ◽  
Author(s):  
Fabián Fernández-Luqueño ◽  
Fernando López-Valdez ◽  
Carolina Pérez-Morales ◽  
Selvia García-Mayagoitia ◽  
Cesar R. Sarabia-Castillo ◽  
...  
Keyword(s):  
Polluted Soils

Multiple interactions in riverine biofilms - surfactant adsorption, bacterial attachment and biodegradation

1995 ◽  
Vol 31 (1) ◽  
pp. 61-70 ◽  
Author(s):  
Graham F. White
Keyword(s):  
Organic Pollutants ◽  
Bacterial Attachment ◽  
Solid Surfaces ◽  
Sediment Surface ◽  
Liquid Interfaces ◽  
Polluted Soils ◽  
Biofilm Bacteria ◽  
The Impact ◽  
Multiple Interactions

Many organic pollutants, especially synthetic surfactants, adsorb onto solid surfaces in natural and engineered aquatic environments. Biofilm bacteria on such surfaces make major contributions to microbial heterotrophic activity and biodegradation of organic pollutants. This paper reviews evidence for multiple interactions between surfactants, biodegradative bacteria, and sediment-liquid interfaces. Biodegradable surfactants e.g. SDS, added to a river-water microcosm were rapidly adsorb to sediment surface and stimulated the indigenous bacteria to attach to the sediment particles. Recalcitrant surfactants and non-surfactant organic nutrients did not stimulate attachment Attachment of bacteria was maximal when biodegradation was fastest, and was reversed when biodegradation was complete. Dodecanol, the primary product of SDS-biodegradation, markedly stimulated attachment. When SDS was added to suspensions containing sediment and either known degraders or known non-degraders, only the degraders became attached, and attachment accelerated surfactant biodegradation to dodecanol. These cyclical cooperative interactions have implications for the design of biodegradability-tests, the impact of surfactant adjuvants on biodegradability of herbicides/pesticides formulated with surfactants, and the role of surfactants used to accelerate bioremediation of hydrocarbon-polluted soils.

scholarly journals Organic compounds in root exudates of Miscanthus × Giganteus greef et deu and limitation of microorganisms in its rhizosphere by nutrients

2010 ◽  
Vol 58 (5) ◽  
pp. 203-208 ◽  
Author(s):  
Hana Kaňová ◽  
Joffrey Carre ◽  
Valerie Vranová ◽  
Klement Rejšek ◽  
Pavel Formánek
Keyword(s):  
Organic Acids ◽  
Organic Compounds ◽  
Respiration Rate ◽  
Root Exudates ◽  
Plant Nutrients ◽  
Rhizospheric Soil ◽  
Polluted Soils ◽  
Rhizosphere Microorganisms ◽  
Miscanthus Giganteus

This study was conducted to determine the composition of sugars and organic acids in root exudates of Miscanthus × Giganteus and to find out if microorganisms of the rhizospheric soil are limited by mi­ne­ral nutrients. The following sugars and organic acids were determined in root exudates of this plant: glucose, saccharose, and acids such as succinic, propionic, citric, tartaric, malic, oxalic, ascorbic, acetic and fumaric. Respiration of soil from rhizosphere of Miscanthus × Giganteus was found to be limited by N, K and Ca. Respiration rate after application of mineral compounds increased in following orther: nitrate > calcium > potassium > ammonium, giving approx. 165, 99, 52 and 31 % increase compared to control. Further research is necessary to determine the role of plant nutrients from the point of their limitations for rhizosphere microorganisms, to broader very rare knowledges in this topic, especially for polluted soils to stimulate efficiency of phytoremediations.

Role of Plant-Associated Microbes in Phytoremediation of Heavy Metal Polluted Soils

2021 ◽  
pp. 157-170
Author(s):  
Manoj Parihar ◽  
Amitava Rakshit ◽  
Manoj Kumar Chitara ◽  
Hanuman Singh Jatav ◽  
Vishnu D. Rajput ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Polluted Soils

Role of Earthworms on Phytoremediation of Heavy Metal-Polluted Soils

2015 ◽  
pp. 279-298 ◽  
Author(s):  
My Dung Jusselme ◽  
Edouard Miambi ◽  
Thierry Lebeau ◽  
Corinne Rouland-Lefevre
Keyword(s):  
Heavy Metal ◽  
Polluted Soils

Biorefining to recover aromatic compounds with biological properties

TAPPI Journal ◽  
2015 ◽  
Vol 14 (3) ◽  
pp. 187-193 ◽  
Author(s):  
OANA-CRINA BUJOR ◽  
IULIA ADINA TALMACIU ◽  
IRINA VOLF ◽  
VALENTIN I. POPA
Keyword(s):  
Secondary Compounds ◽  
Biological Properties ◽  
Grape Seeds ◽  
Asclepias Syriaca ◽  
Polluted Soils ◽  
Genetic Studies ◽  
Plant Cultivation ◽  
Spruce Wood ◽  
Yeast Strains

Although extraction of bioactive compounds by biomass resource biorefining is challenging, interest in these compounds is increasing. This review summarizes our results in the field of secondary compounds (especially polyphenols) obtained via biorefining technology. The technology also offers the possibility to separate other compounds with industrial value or biological properties. To isolate polyphenols, different biomass sources such as spruce wood bark, Asclepias syriaca (a latex-bearing plant), Crataegus monogyna (hawthorn), chestnut shells, vine stems, and grape seeds have been used. The isolated products have been tested for their biological properties in the fields of plant and microorganism development. Experimental results confirmed the important role of polyphenols in the metabolism of different organisms. For plant development, the polyphenols were tested in the following processes: germination, plant cultivation, tissue cultures, and grafting. The influence of polyphenols can be associated with stimulation and regulation of cell differentiation, as evidenced by genetic studies and enzymes biosynthesis. Polyphenols might also participate in regulating the metabolism of different yeast strains and might inhibit the development of bacteria or fungi. Interactions between polyphenols and soil cultivation might also be used for bioremediation of arid and polluted soils.

Role of Plant Genotype and Soil Conditions in Symbiotic Plant-Microbe Interactions for Adaptation of Plants to Cadmium-Polluted Soils

2015 ◽  
Vol 226 (8) ◽  
Author(s):  
Andrey A. Belimov ◽  
Ian V. Puhalsky ◽  
Vera I. Safronova ◽  
Alexander I. Shaposhnikov ◽  
Margarita A. Vishnyakova ◽  
...  
Keyword(s):  
Soil Conditions ◽  
Plant Genotype ◽  
Polluted Soils ◽  
Microbe Interactions

The efficiency of Cd phytoextraction by S. plumbizincicola increased with the addition of rice straw to polluted soils: the role of particulate organic matter

2018 ◽  
Vol 429 (1-2) ◽  
pp. 321-333 ◽  
Author(s):  
Tong Zhou ◽  
Longhua Wu ◽  
Peter Christie ◽  
Yongming Luo ◽  
Dario A. Fornara
Keyword(s):  
Organic Matter ◽  
Rice Straw ◽  
Particulate Organic Matter ◽  
Polluted Soils

The role of biochar-microbe interaction in alleviating heavy metal toxicity in Hordeum vulgare L. grown in highly polluted soils

2019 ◽  
Vol 104 ◽  
pp. 93-101 ◽  
Author(s):  
Gorovtsov Andrey ◽  
Vishnu Rajput ◽  
Minkina Tatiana ◽  
Mandzhieva Saglara ◽  
Sushkova Svetlana ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Hordeum Vulgare ◽  
Metal Toxicity ◽  
Heavy Metal Toxicity ◽  
Hordeum Vulgare L ◽  
Polluted Soils
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