Nickel localization on tissues of hyperaccumulator species of phyllanthus L. (Euphorbiaceae) from ultramafic areas of Cuba.
Biol Trace Elem Res
; 115(1): 67-86, 2007 Jan.
Article
em En
| MEDLINE
| ID: mdl-17406075
Two species of perennial Phyllanthus (Euphorbiaceae) (Phyllanthus orbicularis and Phyllanthus discolor, both endemic to ultramafic areas of Cuba, and their natural hybrid, Phyllanthus xpallidus) were selected for metal localization microanalysis. Different plant tissues were analyzed by X-ray fluorescence, inductively coupled plasma-atomic emission spectroscopy, and scanning electron microscopy coupled with an energy-dispersive X-ray probe. All of the studied taxa are nickel (Ni) hyperaccumulators and significant concentrations of this element were found in different leaf and stem tissues. The highest Ni content was found in the laticifer tubes, whereas leaf epidermis Ni content resulted to be much more relevant in terms of total metal storage. Calcium and magnesium were found more evenly distributed in leaf and stem tissues.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Solo
/
Euphorbiaceae
/
Níquel
País/Região como assunto:
Caribe
/
Cuba
Idioma:
En
Revista:
Biol Trace Elem Res
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Cuba
País de publicação:
Estados Unidos