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Bibliographic Details
Main Author:	J.M. Olano
Format:	Artículo científico
Language:	es
Published:	Asociación Española de Ecología Terrestre 2007
Subjects:	Estudios Ambientales metalofitas revegetación Tolerancia a metales pesados
Online Access:	https://www.redalyc.org/articulo.oa?id=54016206
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Especies nativas de suelos contaminados por metales: aspectos ecofisiológicos y su uso en fitorremediación J.M. Olano C. Garbisu J.M. Becerril O. Barrutia J.I. García Plazaola A. Hernández Estudios Ambientales metalofitas revegetación Tolerancia a metales pesados Las especies nativas que sobreviven en suelos contaminados con metales (metalofitas y seudometalofitas) han desarrollado unos mecanismos fisiológicos especiales para tolerar la presencia de metales: (i) la exclusión que impide la entrada de metales en la raíz y/o su transporte a la parte aérea de la planta, (ii)la acumulación en la parte aérea mediante su inmovilización o compartimentación en las vacuolas. Debido a que viven en zonas muy limitadas y pueden ser afectadas directamente por las actividades mineras su conservación debería ser prioritaria, no sólo por la pérdida de una biodiversidad tan especial sino por su posible utilización en fitotecnologías ambientales de revegetación, fitoestabilización y fitoextracción de entornos contaminados con metales. En el apartado final se presenta un estudio llevado a cabo con especies nativas procedentes de suelos mineros con altos niveles de Zn, Pb y Cd del Norte de España. 2007 artículo científico 1132-6344 https://www.redalyc.org/articulo.oa?id=54016206 es http://www.redalyc.org/revista.oa?id=540 Ecosistemas application/pdf Asociación Española de Ecología Terrestre Ecosistemas (España) Num.2 Vol.16

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* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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