Journal of Stress Physiology &
Biochemistry, Vol. 9 No. 4
2013, pp. 163-179 ISSN 1997-0838
Original Text Copyright (cc) 2013 by Mandal, Ghosh, Dey, Adak
ORIGINAL ARTICLE
Data source : Google Scholar
QueryDate : 2016-12-24
Cites : 4
Physiological Responses of Salvinia natans L. to Aluminium
Stress and Its Interaction with Putrescine
C. Mandal1, N. Ghosh1,
N. Dey2 and M.K. Adak1*
1 Plant Physiology and Plant
Molecular Biology Research Unit, Department of Botany, University of
Kalyani, Nadia, Kalyani 741235, West Bengal, India 2 Centre for Biotechnology, Visva Bharati University,
Santiniketan 731235, West Bengal, India
*E-Mail: mkadak09@gmail.com
Received June 28, 2013
Salvinia
natans L. a water fern is displayed with some of its
physiological attributes in response to aluminium
(Al) stress in aqua culture as
well as its interaction with
externally applied putrescine (put). At the tissue level the Al
deposition is prominent and mostly distributed in the intracellular
spaces as well as cellular interfaces. The
accumulation of Al and its induced oxidative damages
are also revealed through Evan’s blue staining. In both the cases dose
dependent responses of Al induced oxidative damages and its mitigation
with Put was the resultant. Under non enzymatic antioxidation pathways,
anthocyanin and flavonoids were the two phenolics over expressed as a
function of Al and ameliorated with Put application. The property of
root membranes was changed with an up regulation of H+/ATPase
activity which was moderated by Put.The peroxidase activity
particularly those were restricted to the wall bound also showed
variability according to Al doses as revealed through in gel staining.
From these studies of Al accumulation and
its concomitant changes in physiological
attributes in Salvinia
plants, the species could be selected as a potential hyper accumulator
of Al. The role of Put in Al accumulation as well as its moderation has
been discussed with reference to physiological activities.
