Abstract The present study shows spatial patterns in the faunal assemblage of decaying wood and sediments, with emphasis on the polychaetes. The survey was executed across a salinity gradient in a tropical mangrove estuary of Costa Rica. To capture the organisms we analyzed decomposing logs found in the ...
Resumen El análisis de la salinidad durante tres campañas de monitoreo (2002-2004, 2005-2008 y 2011-2012), permite establecer que el sector estuarino del HNTS se divide en una zona norte con una fuerte influencia del Río Grande de Térraba y características de un estuario parcialmente mezclado durant...
Resumen Variables oceanográficas en 33 estaciones en el Golfo Dulce, Costa Rica, entre 2009 y 2010 fueron analizadas a través de perfiles con CTD, donde la salinidad, la temperatura, sigma-T y las corrientes se estudiaron en la columna de agua. Disco Secchi y clorofila-a, fueron medidos a nivel superfi...
BACKGROUND: Salinity is a serious factor limiting the productivity of agricultural plants. One of the potential problems for plants growing under saline conditions is the inability to up take enough K+. The addition of K+ may considerably improve the salt tolerance of plants grown under salinity. It is a...
Phoeniceae/fisiología,
Potasio/metabolismo,
Sodio/metabolismo,
Salinidad,
Productos Agrícolas,
Compartimento Celular/fisiología,
Phoeniceae/crecimiento & desarrollo,
Hojas de la Planta/metabolismo,
Raíces de Plantas/metabolismo,
Brotes de la Planta/metabolismo,
Sacarosa/farmacología,
Absorción Fisicoquímica,
Técnicas In Vitro
Quintana Roo has over 500 species of gastropods but little is known of the larval stages. We sampled four sites monthly from January to December 2008 with plankton tows in triplicate and a conical net of 300μm mesh. Puerto Morelos had the highest records (41.26±63.23 larvae•10m-3), followed b...
The need to identify bodies that are found as a result of disappearances with a diversity of causes, illegal burials and massive disasters, represent a wide percentage of dentistry practice on forensic research. The following study determined the performance of Barr Body Test, in fibroblasts of healthy t...
Background: Rice is globally one of the most important food crops, and NaCl stress is a key factor reducing rice yield. Amelioration of NaCl stress was assessed by determining the growth of rice seedlings treated with culture supernatants containing 5-aminolevulinic acid (ALA) secreted by strains of Rhod...
Oryza/crecimiento & desarrollo,
Ácido Aminolevulínico/metabolismo,
Rhodopseudomonas,
Estrés Fisiológico,
Salinidad,
Productos Agrícolas,
Antioxidantes,
Transporte de Electrón,
Fotosíntesis,
Clorofila/análisis,
Fluorescencia,
Plantones,
Oryza/enzimología,
Catalasa/metabolismo,
Ascorbato Peroxidasas/metabolismo,
Glutatión Reductasa/metabolismo,
Superóxido Dismutasa/metabolismo
This study evaluated the physiological, morphological and ethological effects of salinity variations on the tropical zoanthid Protopalythoa variabilis. This zoanthid was submitted to different salinity levels to probe the hypothesis of osmoregulation. Specimens collected in beach rocks from Northeastern ...
The southern State of Rio Grande do Sul (RS) is the main rice producer in Brazil with a 60% participation of the national production and 86% participation of the region. Rice culture irrigation system is done by flooding, which leads to soil salinization, a major environmental constraint to production si...
Os estudos relacionados com a resposta germinativa de sementes submetidas à condição de estresses artificiais são ferramentas para um melhor entendimento da capacidade de sobrevivência e adaptação destas espécies em condições de estresses naturais, como a seca e solos salinizados, comuns em reg...
