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Growth of four tropical tree species in petroleum-contaminated soil and effects of crude oil contamination

Pérez Hernández, Isidro | Ochoa Gaona, Susana [autor/a] | Adams, R.H [autor/a] | Rivera Cruz, María del Carmen [autor/a] | Pérez Hernández, V [autor/a] | Jarquín Sánchez, Aarón [autor/a] | Geissen Geissen, Violette [autor/a] | Martínez Zurimendi, Pablo [autor/a].
Tipo de material: Artículo
 en línea Artículo en línea Tema(s): Árboles tropicales | Cedrela odorata | Palo de Campeche | Swietenia macrophylla | Tabebuia rosea | Contaminación de suelos | Contaminación por petróleo | FitorremediaciónTema(s) en inglés: Tropical tree | Cedrela odorata | Haematoxylum campechianum | Swietenia macrophylla | Tabebuia rosea | Soil pollution | Oil pollution | PhytoremediationDescriptor(es) geográficos: Tabasco (México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Environmental Science and Pollution Research. volumen 24, número 2 (January 2017), páginas 1769-1783. --ISSN: 1614-7499Número de sistema: 9976Resumen:
Inglés

Under greenhouse conditions, we evaluated establishment of four tree species and their capacity to degrade crude oil recently incorporated into the soil; the species were as follows: Cedrela odorata (tropical cedar), Haematoxylum campechianum (tinto bush), Swietenia macrophylla (mahogany), and Tabebuia rosea (macuilis). Three-month-old plants were planted in soil with three treatments of heavy petroleum and a control (C0 0 mg kg−¹; C1 18,000 mg kg−¹; C2 31,700 mg kg−¹; C3 47,100 mg kg−¹) with four repetitions per treatment and species; the experiment was carried out for 245 days. Height and biomass of all species significantly diminished as petroleum concentration increased, although plant survival was not affected. The quantity of colonyforming units (CFU) of rhizospheric bacteria varied among tree species and treatments; petroleum stimulated bacterial CFU for S. macrophylla. The number of fungi CFU for S. macrophylla and T. rosea was significantly greater in C0 than in soil with petroleum, but among species and among different concentrations, no significant differences were found. The greatest percentage of total petroleumhydrocarbon (TPH) degradation was found in C1 for soil without plants (45 %). Differences from the remaining treatments (petroleum concentrations in soil and plant species) were not significant (P < 0.05). Among all trees, H. campechianum had the greatest TPH degradation (32.5 % in C2). T. rosea (C1) and H. campechianum (C2) resulted in petroleum degradation at levels ranging from 20.5 to 32.5 %. On the basis of this experiment, the tree species used did not improve TPH degradation. However, all of them showed high rates of survival and vigor. So, as tree species provide goods and services, experiments with inoculation of hydrocarbonclastic microorganisms, addition of fertilizers, and mixture of tree and grasses are recommended.

Recurso en línea: http://link.springer.com/article/10.1007/s11356-016-7877-5
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Under greenhouse conditions, we evaluated establishment of four tree species and their capacity to degrade crude oil recently incorporated into the soil; the species were as follows: Cedrela odorata (tropical cedar), Haematoxylum campechianum (tinto bush), Swietenia macrophylla (mahogany), and Tabebuia rosea (macuilis). Three-month-old plants were planted in soil with three treatments of heavy petroleum and a control (C0 0 mg kg−¹; C1 18,000 mg kg−¹; C2 31,700 mg kg−¹; C3 47,100 mg kg−¹) with four repetitions per treatment and species; the experiment was carried out for 245 days. Height and biomass of all species significantly diminished as petroleum concentration increased, although plant survival was not affected. The quantity of colonyforming units (CFU) of rhizospheric bacteria varied among tree species and treatments; petroleum stimulated bacterial CFU for S. macrophylla. The number of fungi CFU for S. macrophylla and T. rosea was significantly greater in C0 than in soil with petroleum, but among species and among different concentrations, no significant differences were found. The greatest percentage of total petroleumhydrocarbon (TPH) degradation was found in C1 for soil without plants (45 %). Differences from the remaining treatments (petroleum concentrations in soil and plant species) were not significant (P < 0.05). Among all trees, H. campechianum had the greatest TPH degradation (32.5 % in C2). T. rosea (C1) and H. campechianum (C2) resulted in petroleum degradation at levels ranging from 20.5 to 32.5 %. On the basis of this experiment, the tree species used did not improve TPH degradation. However, all of them showed high rates of survival and vigor. So, as tree species provide goods and services, experiments with inoculation of hydrocarbonclastic microorganisms, addition of fertilizers, and mixture of tree and grasses are recommended. eng

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