Data/hora: 01/06/2024 18:30:30

Provedor de dados: 	67	
País: 	Argentina	
Título: 	Tillandsia recurvata L. as a bioindicator of sulfur atmospheric pollution	
Autores: 	Graciano,Corina; Fernández,L V; Caldiz,D O.	
Data: 	2003-06-01	
Ano: 	2003	
Palavras-chave: 	Tillandsia recurvata; Sulfur dioxide; Atmospheric pollution; Bioindicator.	
Resumo: 	Tillandsia recurvata L. is an epiphyte that absorbs nutrients from the air, so it could be used as a bioindicator of atmospheric sulfur pollution. In order to test this idea, Tillandsia recurvata samples were seasonally collected for two years at three sites of La Plata, Buenos Aires Province, Argentina, in a suburban park and in a rural area 60 km away from the city. Macro- and microscopic observations were carried out and chlorophyll and sulfur concentrations of the tissue were measured to evaluate if this epiphyte shows morphological or physiological damage in the most polluted sites or if it accumulates sulfur in the tissues when sulfur in the air increases. No micro- or macroscopic damage was observed, and chlorophyll content seemed not to be related with pollution level. Samples from the rural site always had a lower sulfur content than those from the urban and suburban sites. In conclusion, Tillandsia recurvata tolerates the local level of sulfur contamination without showing morphological damage and could be a suitable bioindicator because of its capacity to accumulate sulfur.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2003000100002	
Editor: 	Asociación Argentina de Ecología	
Formato: 	text/html	
Fonte: 	Ecología austral  v.13 n.1 2003	
Fonte: 	info:eu-repo/semantics/openAccess