Indian Journal of Plant Physiology
  • Year: 2008
  • Volume: 13
  • Issue: 1

Influence of aluminium on plant growth, aluminium accumulation and excretion of oxalic acid by seedlings and cultured hairy roots of Sesbania rostrata L. - A green manure crop

  • Author:
  • D.A. Salaskar, V. Ramachandran, S. Ramani, S. Eapen, S.F. D'souza
  • Total Page Count: 4
  • Page Number: 80 to 83

Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai-400 085

*Corresponding author, E-mail: seapen@barc.gov.in

Abstract

The influence of aluminium (Al) on different growth parameters in a leguminous green manure crop Sesbania rostrata L (TSR-1) grown in hydroponic culture is reported here. Growth based on fresh and dry weights was unaffected by Al upto 750 μM, while at 1000 μM Al, there was a decline in both fresh and dry weights. The root length was not affected upto 1000 μM, whereas shoot length showed a decline at 1000 μM of Al. The Al content in root, stem and leaves showed a sharp enhancement upto 1000 μM of Al. Analysis of root exudates of seedlings grown in hydroponics and hairy roots grown in vitro showed secretion of oxalic acid under Al stress.

Keywords

Al tolerance, green manure crop, hairy root culture, oxalic acid, Sesbania rostrata L