International Journal of Advanced Engineering Research and Science (IJAERS) Peer-Reviewed Journal ISSN: 2349-6495(P) | 2456-1908(O) Vol-10, Issue-6; Jun, 2023 Journal Home Page Available: https://ijaers.com/ Article DOI:https://dx.doi.org/10.22161/ijaers.106.5 www.ijaers.com Page | 27 Environmental and Economic Values of salt tolerance. Euphorbia tirucalli: Phytoremediation potential Sandra Ávila Gaspar 1,2,6 , Patrícia G. Musmanno 3 , Gabriela M. Bellizzi 3 , Krisna R. Kathar 4 , Marcos T. Varricchio 5 , Marcia C.B.N. Varricchio 3,6 , Alexandre dos S. Pyrrho 6 , Paulo S. T. Brioso 7 , Simone da Silva 8 1 Ciências Agrárias/UFRRJ. 2 Apiário Estação 4x4. 3 FMP-UNIFASE. 4 Farmácia-UNESA 5 Engenharia elétrica – Sênior. 6 Projeto Saúde Ambiental, Parasitologia, Bioética (SAPB-LIPAT/FF/DCE/UFRJ). 7 Engenharia Agronômica – Laboratório Oficial de Diagnóstico Fitossanitário/UFRRJ. 8 Centro de Bionegócios da Amazônia (CBA) e Instituto de Tecnologia e Educação Galileo da Amazonia (ITEGAM). Received: 25 Apr 2023, Receive in revised form: 01 Jun 2023, Accepted: 08 Jun 2023, Available online: 20 Jun 2023 ©2023 The Author(s). Published by AI Publication. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). Keywords— Phytoremediation, hypersalinity, filter gardens, Euphorbia tirucalli, phytodesalination Palavras-chave— Fitorremediação, hipersalinidade, jardins filtrantes, Euphorbia tirucalli, fitodessalinização Abstract— Halophytes, such as Euphorbia tirucalli, are used for medicinal and economic purposes, as well as for the recovery of degraded environments through bioremediation or phytoremediation. In parallel, Vigna unguiculata, which also has high tolerance to saline environments, has high nutritional value generating economic interest. Furthermore, biofuel production can be reduced in cost and complexity if we use plant raw material that can grow in salinized and poor soils. The reduction of arable land, due to increased soil salinization and the depletion of freshwater resources, poses a threat to agricultural production. In this work we aimed to evaluate the saline stress in V. unguiculata seeds generated from the chemical elicitation of E. tirucalli and the solution of Spongia tosta 10DH. In the first experiment, we cultivated V. unguiculata in water with 10% solutions obtained from aerial parts of E.tirucalli from the coast of Rio de Janeiro. In the second experiment, we cultivated V. unguiculata, which were treated with E. tirucalli hormetic solution - 5H from Seropedica/RJ and Spongia tosta 10DH solution. In all experiments there was inhibition of germination associated to seed engorgement. In our tests, therefore, the evaluated extracts suggested that also will be able to act as phytoremediation agents, via desalination through the Na++/K+ pump mechanism. From our essays, observations and reasoned discussion, we postulate the hypothesis that E. tirucalli can act in filtering gardens of environmental pollutants by this way. Novel ecophysiological investigations will be carried out. Resumo— Halófitas, como Euphorbia tirucalli, são usadas para fins medicinais, econômicos, bem com para recuperação de ambientes degradados através da biorremediação ou fitorremediação. Em paralelo a Vigna unguiculata, que também apresenta alta tolerância a ambientes salinos, tem alto valor nutricional gerando interesse econômico. Ademais, a produção de biocombustível pode ter custo e complexidade reduzidos se