Phytoremediation of Brazilian tree species in soils contaminated by herbicides

Santos, N.M.C.; Costa, Vitor Antunes Martins da; Araújo, Fillipe Vieira de; Alencar, Brenda Thais Barbalho; Ribeiro, Victor Hugo Vidal; Okumura, Fabiano; Simeone, M. L. F.; Santos, José Barbosa dos

doi:10.1007/s11356-018-2798-0

Cited by 21 publications

(3 citation statements)

References 23 publications

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“…Although leaf temperature was widely applied to monitor stomatal conductance of laboratory [23] and field-grown plants [24][25], we are not aware of its application to assess the effects of heavy metals on plant water relations. However it was included in comparison study of tree species for phytoremediation potential in soils contaminated by herbicides [26]. We propose that leaf temperature could be useful in toxicological studies to determine genotypic differences in tolerance to toxic metals, as a rapid alternative and adjunct to traditional biomass-based measurements [27][28].…”

Section: Resultsmentioning

confidence: 99%

Water relations responses of the pea (Pisum sativum L.) mutant SGECd^t to mercury

2020

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Mercury (Hg) is one of the most toxic heavy metals and has multiple impacts on plant growth and physiology, including disturbances of plant water status. The impact of Hg on water relations was assessed by exposing the unique Hg-sensitive pea (Pisum sativum L.) mutant SGECdt and its wild-type (WT) line SGE in hydroponic culture. When the plants were grown in the presence of 1 or 2 µM HgCl2 for 11 days, the SGECdt mutant had lower whole plant transpiration rate and increased leaf temperature, indicating stomatal closure. Shoot removal of Hg-untreated plants resulted in greater root-pressure induced xylem sap flow in the SGECdt mutant than WT plants. Treating these plants with 50 µM HgCl2 (an inhibitor of aquaporins) for 1 h decreased xylem sap flow of both genotypes by about 5 times and eliminated differences between WT and mutant. Adding 1 mM dithiothreitol (the reducing thiol reagent used for opening aquaporins) to the nutrient solution of Hg-treated plants partially restored xylem sap flow in SGECdt roots only, suggesting genotypic differences in aquaporin function. Thus root water uptake is important in mediating sensitivity of SGECdt to toxic Hg.

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Section: Resultsmentioning

confidence: 99%

Water relations responses of the pea (Pisum sativum L.) mutant SGECd^t to mercury

2020

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“…This practice utilizes plants and their associated microbiome to remove, decrease, or immobilize herbicides (Cao et al, 2018;Rainbird et al, 2018). The use of trees for the phytoremediation of areas with herbicide residues has become a topic of interest in agriculture (Cabral et al, 2017;Santos et al, 2018;Gómez et al, 2019). Trees are essential for the protection of water bodies, areas sensitive to erosion, and fauna.…”

Section: Growth Of Seedlings In Soil With Herbicidesmentioning

confidence: 99%

Arbuscular mycorrhizal fungi activity in the rhizosphere of tree seedlings subjected to residual herbicides

et al. 2023

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Trees occurring on the margins of agricultural areas can mitigate damage from residual herbicides. Rhizospheric microbial activity associated with trees is one of the main remedial capacity indicators. The objective of this study was to evaluate the rhizospheric microbiological activity in tree species subjected to the herbicides atrazine and sulfentrazone via the rhizosphere. The experiment was designed in four blocks and a 6 × 3 factorial scheme. The first factor consisted of six tree species from Brazil and the second of atrazine, sulfentrazone, and water solutions. Four herbicide applications were performed via irrigation. The total dry mass of the plants, mycorrhizal colonization, number of spores, basal respiration of the rhizospheric soil, and survival rate of bioindicator plants after phytoremediation were determined. Trichilia hirta had higher biomass when treated with atrazine and sulfentrazone. Herbicides decreased the microbial activity in Triplaris americana and did not affect the microbiological indicators of Myrsine gardneriana, Schizolobium parahyba, and Toona ciliata. Fewer bioindicator plants survived in soil with Triplaris americana and sulfentrazone. Microbiological indicators were influenced in different ways between species by the presence of herbicides in the rhizosphere.

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“…Estudos para o desenvolvimento de técnicas de remediação/mitigação dos danos causados pela presença de herbicidas no solo têm sido intensificados (SANTOS et al, 2018;MELO et al, 2019;SOUZA et al, 2017). Uma promissora técnica de descontaminação que utiliza recursos naturais para recuperar um ambiente contaminado e tóxico a uma condição segura é a biorremediação (KANG, 2014).…”

Section: Introductionunclassified

Fitorremediação de solos contaminados com sulfentrazone em função da inoculação de bactérias simbióticas em Crotalaria juncea

Mielke

Bertuani

Laube

et al. 2021

RICA

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A simbiose entre plantas fitorremediadoras e microrganismos com atividade enzimática metabolizadora de herbicidas pode ser uma alternativa eficiente para remediação de solos contaminados com sulfentrazone. Objetivou-se avaliar a Crotalaria juncea (crotalária) inoculada com Bradyrhizobium sp. na fitorremediação do sulfentrazone e seus efeitos na biomassa microbiana do solo. O experimento foi conduzido em casa-de-vegetação da Universidade Federal do Espírito Santo (UFES), testando-se quatro doses de sulfentrazone (0, 400, 800 e 1200 g i.a. ha-1) na presença ou ausência da inoculação com Bradyrhizobium sp. BR2003 (SEMIA 6156). Após 65 dias de cultivo, as plantas foram cortadas, o solo foi coletado para as análises da biomassa microbiana e o bioensaio com o milheto. A inoculação com Bradyrhizobium sp. proporcionou melhor desenvolvimento em altura das plantas de crotalária, entretanto, o sistema radicular não foi influenciado pela adição do microrganismo. Os indicadores biológicos do solo mostraram que a inoculação com Bradyrhizobium sp. influenciou de maneira negativa na atividade microbiana dos solo. A crotalária apresentou boa tolerância aos níveis de sulfentrazone no solo, independentemente do inoculante. Os resultados sugerem que a inoculação da crotalária com Bradyrhizobium sp. não mostrou benefício na eficácia da remediação dos sulfentrazone, tendo a crotalaria melhor desempenho com os microrganismos nativos do solo.

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Phytoremediation of Brazilian tree species in soils contaminated by herbicides

Cited by 21 publications

References 23 publications

Water relations responses of the pea (Pisum sativum L.) mutant SGECd^t to mercury

Water relations responses of the pea (Pisum sativum L.) mutant SGECd^t to mercury

Arbuscular mycorrhizal fungi activity in the rhizosphere of tree seedlings subjected to residual herbicides

Fitorremediação de solos contaminados com sulfentrazone em função da inoculação de bactérias simbióticas em Crotalaria juncea

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Phytoremediation of Brazilian tree species in soils contaminated by herbicides

Cited by 21 publications

References 23 publications

Water relations responses of the pea (Pisum sativum L.) mutant SGECdt to mercury

Water relations responses of the pea (Pisum sativum L.) mutant SGECdt to mercury

Arbuscular mycorrhizal fungi activity in the rhizosphere of tree seedlings subjected to residual herbicides

Fitorremediação de solos contaminados com sulfentrazone em função da inoculação de bactérias simbióticas em Crotalaria juncea

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Water relations responses of the pea (Pisum sativum L.) mutant SGECd^t to mercury

Water relations responses of the pea (Pisum sativum L.) mutant SGECd^t to mercury