caa a22 4500 397521383 CHVBK 20180308164633.0 cr unu---uuuuu 161202e199506 xx s 000 0 eng 10.1093/jxb/46.6.609 doi (NATIONALLICENCE)oxford-10.1093/jxb/46.6.609 Biosynthesis, accumulation and secretion of isoflavonoids during germination and development of white lupin (Lupinus albus L.) [Elektronische Daten] [Hubert Gagnon, Satoshi Tahara, Ragai K. Ibrahim] A combination of 14C labelling experiments of white lupin seedlings (Lupinus albus L.) and high pressure liquid chromatography of tissue extracts indicated active biosynthesis of isoflavonoids during the first 2-4 d of seed germination. These were synthesized mostly as glucosides and to a lesser extent as aglycones, with trace amounts of prenylated derivatives. There was a general decrease in total isoflavonoids during later stages of germination (c. until d 13), which may be ascribed to their turnover and/or exudation into the rhizosphere. In addition, exudation of isoflavonoids by lupin seeds germinated under sterile conditions continues for 12 d with a preferential release of monoprenylated compounds. The relationship between the specific developmental events during seed germination and the accumulation of certain groups of isoflavonoids is discussed in relation to their possible role in the growth processes of lupin. © Oxford University Press Research Papers nationallicence Isoflavonoids nationallicence glucosides nationallicence aglycones nationallicence prenylated derivatives nationallicence root exudates nationallicence white lupin nationallicence Gagnon Hubert Department of Biology, Concordia University, Montréal, Québec H3G 1M8, Canada aut Tahara Satoshi Department of Biology, Concordia University, Montréal, Québec H3G 1M8, Canada aut Ibrahim Ragai K. Department of Biology, Concordia University, Montréal, Québec H3G 1M8, Canada aut Journal of Experimental Botany Oxford University Press 46/6(1995-06), 609-616 0022-0957 46:6<609 1995 46 exbotj https://doi.org/10.1093/jxb/46.6.609 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/jxb/46.6.609 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gagnon Hubert Department of Biology, Concordia University, Montréal, Québec H3G 1M8, Canada aut NATIONALLICENCE 700 1- Tahara Satoshi Department of Biology, Concordia University, Montréal, Québec H3G 1M8, Canada aut NATIONALLICENCE 700 1- Ibrahim Ragai K. Department of Biology, Concordia University, Montréal, Québec H3G 1M8, Canada aut NATIONALLICENCE 773 0- Journal of Experimental Botany Oxford University Press 46/6(1995-06), 609-616 0022-0957 46:6<609 1995 46 exbotj Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford