Changes in the levels of phytochelatins and related metal-binding peptides in chickpea seedlings exposed to arsenic and different heavy metal ions.
Phytochelatin-related peptides were analyzed in chickpea plants exposed to six different heavy-metal ions. Cadmium and arsenic stimulated phytochelatin and homophytochelatin synthesis in roots but other metals did not. These metals, however, caused an overall increase in the precursors, glutathione, homoglutathione and cysteine. These changes may be different biochemical indexes for heavy-metal contamination.
Gupta
Dharmendra K
DK
Department of Biology and Earth Sciences, Faculty of Science, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan.
Tohoyama
Hiroshi
H
Joho
Masanori
M
Inouhe
Masahiro
M
D000222:Adaptation, Physiological / Q000187:drug effects; D001151:Arsenic / Q000494:pharmacology*; D002104:Cadmium / Q000494:pharmacology; D029863:Cicer / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism; D003545:Cysteine / Q000096:biosynthesis; D005978:Glutathione / Q000031:analogs & derivatives* / Q000096:biosynthesis; D008667:Metalloproteins / Q000096:biosynthesis*; D019216:Metals, Heavy / Q000494:pharmacology*; D054811:Phytochelatins; D010940:Plant Proteins / Q000096:biosynthesis; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism
D008667:Metalloproteins; D019216:Metals, Heavy; D010940:Plant Proteins; C402172:homoglutathione; C434267:homophytochelatin; D002104:Cadmium; D054811:Phytochelatins; D005978:Glutathione; D003545:Cysteine; D001151:Arsenic