%0 Journal Article
%T Chill-induced changes in fatty acid composition of tonoplast vesicles from hypocotyls of Vigna unguiculata (L.) Walp.
%A Oliveira
%A Luciana M. N. de
%A Sobreira
%A Alana C. de M.
%A Monteiro
%A Fernando de P.
%A Melo
%A Dirce F. de
%J Brazilian Journal of Plant Physiology
%D 2010
%I Scientific Electronic Library Online
%R 10.1590/S1677-04202010000100008
%X the present study was undertaken to investigate the changes induced by chilling on fatty acid composition of tonoplast vesicles from hypocotyls of vigna unguiculata (l.) walp. the 7 day-old control seedlings were grown at 25ˇăc while treated seedlings were submitted to low temperatures (10ˇăc and 4ˇăc) for 4 days after 3 days germination. the chilling stress resulted in a differential inhibition of plant growth at 10ˇăc and 4ˇăc. following chilling at 10ˇăc and 4ˇăc, the rate of unsaturated to saturated fatty acids increased under chilling stress. our results suggest that the increase of unsaturated fatty acids content as well as the higher rate unsaturated/saturate fatty acidsmight be used by v. unguiculata plants as an adaptation mechanism likely to maintain the vacuolar membrane fluidity under low temperatures.
%K chilling
%K cowpea
%K lipid
%K fatty acids
%K membrane
%K vacuole.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1677-04202010000100008&lng=en&nrm=iso&tlng=en