Abstract Spore counts, species composition and richness of arbuscular mycorrhizal fungi, and soil glomalin contents were evaluated in a soil contaminated with Zn, Cu, Cd and Pb after rehabilitation by partial replacement of the contaminated soil with non-contaminated soil, and by Eucalyptus camaldulensis...
Abstract:Successful forest restoration in tropical environments is limited by the paucity of studies on the initial establishment and early survival requirements of seedlings of most native tropical tree species under disturbed conditions. Here, we evaluated the initial growth responses and the regenerat...
Análisis de Varianza,
Biodiversidad,
Costa Rica,
Meliaceae/crecimiento & desarrollo,
Persea/crecimiento & desarrollo,
Hojas de la Planta/crecimiento & desarrollo,
Bosque Lluvioso,
Plantones/crecimiento & desarrollo,
Suelo,
Estadísticas no Paramétricas,
Árboles/crecimiento & desarrollo,
Clima Tropical
Resumen:Las raíces finas juegan un papel importante en la adquisición de agua y minerales del suelo, el balance global del carbono y la mitigación del cambio climático. La dinámica (productividad-PRF y recambio-RRF) de raíces finas es esencial para el ciclo de nutrientes y balance de carbono de los...
Abstract Gyropsylla spegazziniana (Paraguay tea ampul) is one of the most important pests of Paraguay tea plants, and prohibition of synthetic insecticide use for control of this pest has led to the search for alternative methods. This laboratory study aimed to compare different control strategies for G....
Abstract Mangrove communities were selected in the state of Santa Catarina, Brazil, near their southernmost limit of distribution, to study mineral nutrient relation in soils and plants. Communities included three true mangrove species, Rhizophora mangle, Laguncularia racemosa and Avicennia germinans, an...
Abstract Palms, bromeliads and bamboos are key elements of tropical forests and understanding the effects of climate, anthropogenic pressure and forest structure on these groups is crucial to forecast structural changes in tropical forests. Therefore, we investigated the effects of these factors on the a...
Abstract Humic substances in soil DNA samples can influence the assessment of microbial diversity and community composition. Using multiple steps during or after cell lysis adds expenses, is time-consuming, and causes DNA loss. A pretreatment of soil samples and a single step DNA extraction may improve e...
Bosques,
Hongos/clasificación,
Hongos/genética,
Microbiota,
Reacción en Cadena de la Polimerasa,
Polimorfismo de Longitud del Fragmento de Restricción,
Microbiología del Suelo,
Cloruro de Calcio,
ADN Bacteriano,
ADN de Hongos,
Hongos/aislamiento & purificación,
Suelo/química
ABSTRACT The goal of this investigation was to isolate competent polynuclear aromatic hydrocarbons degraders that can utilize polynuclear aromatic hydrocarbons of former industrial sites at McDoel Switchyard in Bloomington, Indiana. Using conventional enrichment method based on soil slurry, we isolated, ...
Hidrocarburos Policíclicos Aromáticos/metabolismo,
Carbono/química,
Biodegradación Ambiental,
Crisenos/metabolismo,
Naftalenos/metabolismo,
Nitrógeno/química,
Filogenia,
Pseudomonas/clasificación,
Pseudomonas/genética,
Pirenos/metabolismo,
ARN Ribosómico 16S/genética,
Suelo/química,
Microbiología del Suelo,
Pseudomonas/metabolismo
ABSTRACT Polychlorinated biphenyls (PCBs), the chlorinated derivatives of biphenyl, are one of the most prevalent, highly toxic and persistent groups of contaminants in the environment. The objective of this study was to investigate the biodegradation of PCBs in northeastern (Heilongjiang Province), nort...
Los microorganismos del suelo son vitales para el correcto funcionamiento de los ecosistemas, principalmente por su papel en el ciclado de nutrientes. La intensificación del uso del suelo y las prácticas agrícolas alteran negativamente la actividad microbiana. La biomasa fúngica es uno de los paráme...
