Biochemical responses of Camellia sinensis (L.) O. Kuntze to heavy metal stress.
J Environ Biol
;
2001 Jan; 22(1): 37-41
Article
Dans Anglais
| IMSEAR
| ID: sea-113834
ABSTRACT
Three heavy metals-mercury (II), copper (II) and nickel (II), each at a concentration of 10 and 100 micrograms/ml, were tested for their effects on various biochemical constituents of tea leaves. Both NI (II) and Hg (II) decreased the phenolic contents, while Cu (II) increased it to some extent. The metal treatments enhanced the activity of phenyl alanine ammonia lyase (PAL), while the activity of poly phenol oxidase (PPO) showed a decline. Heavy metal stress also decreased the chlorophyll content of the leaves, along with a significant reduction in Hill activity. Proline content increased significantly in all treatments.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
Sujet Principal:
Photosynthèse
/
Thé
/
Humains
/
Composés du mercure
/
Feuilles de plante
/
Métaux lourds
/
Sulfate de cuivre
/
Nickel
langue:
Anglais
Texte intégral:
J Environ Biol
Année:
2001
Type:
Article
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