Hormesis under oil-induced stress in Leersia hexandra Sw. used as phytoremediator in clay soils of the Mexican humid tropic

Orocio-Carrillo, José Alberto; Rivera-Cruz, María del Carmen; Aranda-Ibáñez, Emilio Manuel; Trujillo-Narcía, Antonio; Galvez, Geovanni Hernández; Mendoza-López, Ma. Remedios

doi:10.1007/s10646-019-02106-1

Cited by 13 publications

(9 citation statements)

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“…According to Lynch et al (2012), the vigorous growth of primary and secondary roots and the production of root dry matter are observable primary adaptations to stress. Exposure of L. hexandra to doses of 238 g/kg of CO increased the production of root dry matter by 444%, compared to the control, generating a J-shaped dose-response curve (Orocio-Carrillo et al 2019).…”

Section: Discussionmentioning

confidence: 97%

“…The biological balance of oil-contaminated soil changes according to the living organisms that inhabit it. Soil contamination with hydrocarbons can even have a positive effect on the biology of the organisms that inhabit historically contaminated environments (González-Moscoso et al 2017;Orocio-Carrillo et al 2019;Alanbary et al 2019;Rodríguez-Uribe et al 2021).…”

Section: Introductionmentioning

confidence: 99%

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Physiological and microbiological hormesis in sedge Eleocharis palustris induced by crude oil in phytoremediation of flooded clay soil

et al. 2022

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Soil contamination with petroleum hydrocarbons affects plants and rhizospheric microorganisms. A ninemonth experiment was set up to study the effect over time of oil on plant height, new plant production, plant matter production, and the population of rhizospheric microorganisms in the sedge Eleocharis palustris. The removal of total petroleum hydrocarbons from the soil was also evaluated. The results showed that plants responded differently depending on age and petroleum concentration. Concentration of 60 g of petroleum per kg of soil induced a signi cant increase in height (weeks 28 to 38) and new plant production (weeks 13 to 38). At the end of the evaluation period, a high petroleum concentration induced a signi cant increase in the number of primary roots, root and aerial dry matter, population of microalgae, total fungi, actinomycetes, Pseudomonas spp and hydrocarbonoclastic bacteria. Physiological and microbiological hormetic index values ≥1 showed a linear response to petroleum concentration in plant height and new plant production from weeks 3 and 2 to 38, respectively. A similar response curve was found for the number of primary roots, root and aerial dry matter, microalgae, total fungi, actinomycetes, Pseudomonas, and hydrocarbonoclastic bacteria (week 38). After 38 weeks of exposure to petroleum-contaminated soil, the rhizosphere of E. palustris showed petroleum removal percentages of 71, 72, 56, 42, 33 and 23% in soil that initially contained 3, 15, 30, 45, 60 and 75 g oil, respectively. The increase in petroleum removal was signi cantly and negatively correlated with the populations of microalgae, actinomycetes, Pseudomonas bacteria and hydrocarbonoclast bacteria.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Physiological and microbiological hormesis in sedge Eleocharis palustris induced by crude oil in phytoremediation of flooded clay soil

et al. 2022

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“…PC fueron superiores a los registrados en el tratamiento control, lo que sugiere un mayor desempeño fisiológico en presencia del contaminante a bajas concentraciones. A este fenómeno se le conoce como hormesis, que se caracteriza por una aparente estimulación de los procesos fisiológicos cuando los organismos son expuestos a bajos niveles de agentes tóxicos, y una inhibición de estos procesos a concentraciones altas (Forbes 2000, Roosens et al 2003, Calabrese 2012, Labra-Cardón et al 2012, Orocio-Carrillo et al 2019. Esta capacidad puede conferir una ventaja adaptativa tanto a T. rosea como a H. campechianum para aclimatarse ante eventos de contaminación del suelo con petróleo crudo a concentraciones de entre 15,175 y 15,300 mg kg -1 .…”

Section: Discussionunclassified

“…En este estudio, las plantas del tratamiento control no presentaron diferencias significativas y tampoco se observaron cambios de contenido de clorofila en los tratamientos, lo que sugiere que la presencia de hidrocarburos en el suelo no tuvo las concentraciones lo suficientemente altas para provocar un efecto significativo en el contenido de clorofila foliar. Por el contrario, la presencia del hidrocarburo a una concentración de 15,170 mg kg -1 sugiere que promueve la producción de clorofila foliar, sustentando el fenómeno de hormesis en las plantas (Orocio-Carrillo et al 2019, Erofeeva 2022, y favoreciendo el desempeño fotosintético de las plantas.…”

Section: Discussionunclassified

Desempeño fisiológico de dos especies arbóreas en un suelo contaminado con petróleo

Chan-Quijano¹,

Valdez-Hernández²,

González-Salvatierra³

et al. 2022

Bot. Sci.

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Antecedentes: La presencia de petróleo crudo (PC) en el suelo puede conllevar la muerte de especies vegetales que no logran aclimatarse a estas condiciones. Preguntas: ¿Cuál será la respuesta fisiológica de dos especies arbóreas creciendo en un suelo contaminado con diferentes concentraciones de PC? ¿Cuál será su plasticidad fisiológica en este contexto? Especies de estudio: Haematoxylum campechianum L. y Tabebuia rosea (Bertol.) DC. Sitio de estudio: Tabasco, México; 2017. Métodos: Se evaluaron variables fisiológicas en dos especies arbóreas establecidas en suelos contaminados bajo tres concentraciones de PC (15,170 a 15,600 mg kg-1) durante 292 días; se midió la asimilación de CO2 (A), transpiración (E), eficiencia en el uso del agua (EUA), eficiencia cuántica del fotosistema II (Fv/Fm y FPSII ), tasa de transporte de electrones (TTE), disipación no fotoquímica de energía (DNE), potencial hídrico, osmótico y contenido de clorofila. Resultados: Se encontró baja plasticidad fisiológica en ambas especies; hubo un efecto hormesis donde, en la concentración más baja de PC, los individuos presentaron un desempeño fisiológico superior comparado con plantas del tratamiento control. En T. rosea se registró un incremento en A, E, FPSII, DNE y Fv/Fm y una reducción en la TTE hacia el final del experimento en todos los tratamientos. H. campechianum presentó un incremento en la concentración de clorofila al final del mismo. Conclusiones: Tabebuia rosea presentó mayor variabilidad en sus respuestas fisiológicas comparada con H. campechianum, lo que sugiere que la primera podría ser más vulnerable a la presencia de petróleo crudo en suelo.

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“…Lh is a grass that grows in oil-contaminated wetlands in southeastern Mexico. It has developed stress tolerance mechanisms that manifest in the hormetic response of its growth rate, in the increase of its plant biomass and crude protein content (Orocio-Carrillo et al 2019). Lh also has a rhizosphere colonized by hydrocarbonoclastic bacteria and fungi (González-Moscoso et al 2019).…”

Section: Zuzolo Et Al 2021)mentioning

confidence: 99%

Crude oil induces plant growth and antioxidant production in Leersia hexandra Sw. A hydrophytic grass that rhizodegrades oil in Tabasco, Mexico.

Orocio-Carrillo

Rivera-Cruz

Juárez‐Maldonado

et al. 2022

Preprint

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This study evaluated the survival of the grass Leersia hexandra (Lh) to the stress caused by crude oil (CO), by means of synthesis of reactive oxygen species, antioxidants in leaf-root, and by the rhizospheric bacterial activity of Lh. The experiment was carried out for 180 days, a 4x2 factorial arrangement was applied, four concentrations of CO and two technologies [phytoremediation (PH) with Lh and natural attenuation (NA) with native microorganisms]. The results recorded treatment means with statistical differences (Duncan p ≤ 0.05). Concentrations of 90 g/kg stimulated the formation of young plants (YP) and grass root. In YP leaves, the biosynthesis of H2O2, total phenols (TP) and total flavonoids (TFV) increased due to the effect of CO, as did catalase (CAT) and phenylalanine ammonia lyase (PAL) in roots. Grass roots with low H2O2 synthesis but high synthesis of CAT and PAL are a signal of tolerance to abiotic stress. Rhizosphere of Lh stimulated microbial activity and the population of Azotobacter spp but removal 22% de 90 g/kg the CO, and AN 58%. The results suggest adaptation of Lh to the stress caused by soil contaminated with oil, manifested by regulating the synthesis of H2O2 and antioxidants in leaf-root during the removal of hydrocarbons from oil.

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Hormesis under oil-induced stress in Leersia hexandra Sw. used as phytoremediator in clay soils of the Mexican humid tropic

Cited by 13 publications

References 30 publications

Physiological and microbiological hormesis in sedge Eleocharis palustris induced by crude oil in phytoremediation of flooded clay soil

Physiological and microbiological hormesis in sedge Eleocharis palustris induced by crude oil in phytoremediation of flooded clay soil

Desempeño fisiológico de dos especies arbóreas en un suelo contaminado con petróleo

Crude oil induces plant growth and antioxidant production in Leersia hexandra Sw. A hydrophytic grass that rhizodegrades oil in Tabasco, Mexico.

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