2003/11/12 by Nathalie Durand, Xavier Briand, Christian Meyer
Agricultural and Biological Sciences · Earth and Planetary Sciences · Materials Science · #Plant Growth Enhancement Techniques #Marine and coastal plant biology #Layered Double Hydroxides Synthesis and Applications
paper · doi:10.1046/j.1399-3054.2003.00207.x
We investigated the effect of exogenous cytokinins and marine bioactive substances containing seaweed extracts (marketed by the ROULLIER Group under the trade name N PRO TM. ) on nitrate reductase activity in Arabidopsis . Cytokinins, applied either directly in the growth medium or as a foliar spray, did not significantly influence nitrate reductase activity in extracts from in vitro grown Arabidopsis plants. Conversely, Arabidopsis grown in the presence of or sprayed with N PRO had increased nitrate reductase activity. This stimulatory effect of N PRO was even higher when the plants were grown on low nitrate concentration, suggesting that these marine bioactive substances may be beneficial for plant growth in adverse nutritional conditions.