Phytoremediation Crops and Biofuels

Prasad, Majeti Narasimha Vara

doi:10.1007/978-3-319-16742-8_7

Cited by 22 publications

(7 citation statements)

References 471 publications

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“…In this back drop, multipurpose high biomass producing plants like R. communis with proven record as shown in table 1 have great scope for boosting bioeconomy linking biofuels, value chain and value additions. Phytoproducts and bioenergy via innovative and efficient technologies are already a reality offering great opportunities and solutions to major societal, environmental and economic challenges, including environmental security (96,97,192).…”

Section: Discussionmentioning

confidence: 99%

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Ricinus communis L. (Castor bean), a potential multi-purpose environmental crop for improved and integrated phytoremediation

Kiran

Prasad

2017

The EuroBiotech Journal

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Phytoremediation is a plant based environmental cleanup technology to contain (rendering less toxic), sequester and degrade contaminated susbtrates. As can be seen from data metrics, it is gaining cosiderable importance globally. Phytoremediation approach is being applied for cleanup of inorganic (potentially toxic metals), organic (persistent, emergent, poly-acromatic hydrocarbons and crude oil etc.) and co-contaminated (mixture of inorganic and organic) and/or polluted sites globally. Recently new approaches of utilizing abundantly available natural organic amendments have yielded significant results. Ricinus communis L. (Castor bean) is an important multipurpose crop viz., Agricultural, Energy, Environmental and Industrial crop. The current status of knowledge is abundant but scattered which need to be exploited for sustainable development. This review collates and evaluates all the scattered information and provides a critical view on the possible options for exploiting its potential as follows: 1. Origin and distribution, 2. Lead toxicity bioassays, 3. Progress in arbuscular mycorrhizal fungi-assisted phytoremediation, 4. Promising bioenergy crop that can be linked to pytoremediation, 5. A renewable source for many bioproducts with rich chemical diversity, 6. It is a good biomonitor and bioindicator of atmospheric pollution in urban areas, 7. Enhanced chelate aided remediation, 8. Its rhizospheric processes accelerate natural attenuation, 9. It is suitable for remediation of crude oil contaminated soil, 10. It is an ideal candidate for aided phytostabilization, 11. Castor bean is a wizard for phytoremediation and 12. Its use in combined phytoextraction and ecocatalysis. Further, the knowledge gaps and scope for future research on sustainable co-generation of value chain and value addition biobased products for sustainable circular economy and environmental security are described in this paper.

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Section: Discussionmentioning

confidence: 99%

“…Coupling Ricinus communis with phytoremediation, biofuels and biorpoducts strengths sustainable circular economy(96)(97)(98)(99).…”

mentioning

confidence: 99%

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Ricinus communis L. (Castor bean), a potential multi-purpose environmental crop for improved and integrated phytoremediation

Kiran

Prasad

2017

The EuroBiotech Journal

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“…Plants carry out the process by absorbing the pollutants from the soil, transporting them to the shoot, and/or converting them into relatively safer products. Mustard, sunfl ower, tobacco, and maize have been found to attain these goals in a number of studies (Prasad 2015 ).…”

Section: Rhizoremediation By Plant-microbe Cleaning Teammentioning

confidence: 99%

Plant-Microbe Interactions: A Molecular Approach

Babar

Khan

Zargaham

et al. 2016

Plant, Soil and Microbes

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Plants thrive in a complex environment comprising of various biotic and abiotic agents. Like all biological systems, these agents tend to interact with the plant body. Microorganisms form a major portion of the ecosystem and have been found to inoculate or infect members of all the kingdoms. Plants and microbes have developed molecular mechanisms to interact with one another and attain the maximum benefi t from the interactions. This mutualistic relationship provides benefi t not only to the microbes but also to the plants. Based upon this complex molecular interplay, a number of mechanisms have been studied and are currently being employed for the agricultural, environmental, and health benefi ts. The principles of biofertilization and bioremediation utilize the plant-microbe interactions for the survival of the two players along with contributing to the food chain and the ecosystem. Similarly, the secondary metabolites obtained from these organisms contribute to human medical and agricultural welfare. These processes are regulated by a variety of biological, physical, chemical, and environmental factors, the study of which can be helpful in exploiting better outcomes from the interaction. The advent of modern techniques has helped in deciphering the role of various molecular players of the plant-microbe interactions. Moreover, they can be employed for regulating the plant-microbe interaction for improved effi ciency. The current chapter discusses the molecular mechanisms involved in the plant-microbe interactions exhibited in biofertilization, bioremediation, biocontrol, and induced systemic resistance. Afterwards, the factors affecting the molecular machinery involved in these pathways have been discussed. Toward the end, a brief introduction of the genetic 2 manipulative techniques and their applications in the plant-microbe interactions has been presented.

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“…Increasing the tolerance of the host to heavy metals may enhance its ability to utilize biomass from phytoremediation. Phytoremediation may provide a cost-effective way to cleanup heavy metals in contaminated soil and water by plants, and the biomass can then be a source for renewable energy and bio-products [14]. Therefore, tolerance assays were conducted to evaluate the potential of carotenoids producing strain for biofuel production that may face ethanol, furfurals and heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Characterizing an engineered carotenoid-producing yeast as an anti-stress chassis for building cell factories

et al. 2019

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Background A microorganism engineered for non-native tasks may suffer stresses it never met before. Therefore, we examined whether a Kluyveromyces marxianus strain engineered with a carotenoid biosynthesis pathway can serve as an anti-stress chassis for building cell factories. Results Carotenoids, a family of antioxidants, are valuable natural products with high commercial potential. We showed that the free radical removal ability of carotenoids can confer the engineered host with a higher tolerance to ethanol, so that it can produce more bio-ethanol than the wild type. Moreover, we found that this engineered strain has improved tolerance to other toxic effects including furfurals, heavy metals such as arsenate (biomass contaminant) and isobutanol (end product). Furthermore, the enhanced ethanol tolerance of the host can be applied to bioconversion of a natural medicine that needs to use ethanol as the delivery solvent of hydrophobic precursors. The result suggested that the engineered yeast showed enhanced tolerance to ethanol-dissolved hydrophobic 10-deacetylbaccatin III, which is considered a sustainable precursor for paclitaxel (taxol) bioconversion. Conclusions The stress tolerances of the engineered yeast strain showed tolerance to several toxins, so it may serve as a chassis for cell factories to produce target products, and the co-production of carotenoids may make the biorefinary more cost-effective.

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Phytoremediation Crops and Biofuels

Cited by 22 publications

References 471 publications

Ricinus communis L. (Castor bean), a potential multi-purpose environmental crop for improved and integrated phytoremediation

Ricinus communis L. (Castor bean), a potential multi-purpose environmental crop for improved and integrated phytoremediation

Plant-Microbe Interactions: A Molecular Approach

Characterizing an engineered carotenoid-producing yeast as an anti-stress chassis for building cell factories

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