Protection of Vigna unguiculata (L.) Walp. plants from salt stress by paclobutrazol.
A pot culture experiment was conducted to estimate the stress ameliorating ability of paclobutrazol, a triazole fungicide in Vigna unguiculata (L.) Walp. plants. Treatments were given as 80 mM NaCl, 80 mM NaCl+15 mg l(-1) paclobutrazol and 15 mg l(-1) paclobutrazol alone. The samples were collected on 60 and 80 days after sowing (DAS). NaCl stress inhibited the root and stem length, total leaf area, fresh weight (FW), dry weight (DW) and activities of antioxidant enzymes like superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX). Plants treated with NaCl with paclobutrazol increased these parameters to a larger extent when compared to NaCl stressed plants. The results showed that the paclobutrazol significantly ameliorated the adverse effects of NaCl stress in V. unguiculata plants.
Manivannan
P
P
Division of Plant Physiology, Department of Botany, Annamalai University, Annamalainagar 608002, Tamil Nadu, India. maniphd78@rediffmail.com
Jaleel
C Abdul
CA
Kishorekumar
A
A
Sankar
B
B
Somasundaram
R
R
Panneerselvam
R
R
D000222:Adaptation, Physiological / Q000187:drug effects*; D000975:Antioxidants / Q000378:metabolism; D002374:Catalase / Q000378:metabolism; D007887:Fabaceae / Q000187:drug effects* / Q000201:enzymology / Q000254:growth & development; D005659:Fungicides, Industrial / Q000494:pharmacology; D010544:Peroxidases / Q000378:metabolism; D012965:Sodium Chloride / Q000494:pharmacology*; D013482:Superoxide Dismutase / Q000378:metabolism; D014230:Triazoles / Q000494:pharmacology*
D000975:Antioxidants; D005659:Fungicides, Industrial; D014230:Triazoles; D012965:Sodium Chloride; C053370:paclobutrazol; D010544:Peroxidases; D002374:Catalase; D013482:Superoxide Dismutase