Comparative antioxidant profiling of tolerant and sensitive varieties of Brassica juncea L. to arsenate and arsenite exposure.
Comparative antioxidant profiling of tolerant (TPM-1) and sensitive (TM-4) variety of Brassica juncea L. was performed after exposure to arsenate [As(V)] and arsenite [As(III)]. TPM-1 demonstrated higher accumulation of As upon exposure to both 500 microM As(V) and 250 microM As(III) (49 and 37 microg g(-1) dw after 15 days) as compared with that observed in TM-4. The activities of various antioxidant enzymes and the level of glutathione and proline demonstrated, in general, a comparatively better response in TPM-1 than in TM-4 that presumably allowed TPM-1 to tolerate higher As concentrations as compared with that of TM-4.
Srivastava
Sudhakar
S
Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. sudhakar.srivastava@gmail.com
Srivastava
Ashish Kumar
AK
Suprasanna
Penna
P
D'Souza
Stanislaus F
SF
D000975:Antioxidants / Q000032:analysis*; D001149:Arsenates / Q000633:toxicity*; D018053:Arsenites / Q000633:toxicity*; D001937:Brassica / Q000737:chemistry* / Q000235:genetics; D004781:Environmental Exposure; D004785:Environmental Pollutants / Q000032:analysis*; D005838:Genotype
D000975:Antioxidants; D001149:Arsenates; D018053:Arsenites; D004785:Environmental Pollutants; C015001:arsenite; C025657:arsenic acid