caa a22 4500 477110142 CHVBK 20180405111606.0 cr unu---uuuuu 170330e19960401xx s 000 0 eng 10.1007/BF00012065 doi (NATIONALLICENCE)springer-10.1007/BF00012065 Hydrolysis products of glucosinolates in Brassica napus tissues as inhibitors of seed germination [Elektronische Daten] [P. Brown, M. Morra] Enzymatic hydrolysis of glucosinolates, a class of compounds found in Brassica species, results in a number of products with potential to inhibit seed germination. To investigate the impact of both volatile and water-soluble allelochemicals, germination bioassays using Lactuca sativa seeds were conducted with root and combined leaf and stem tissues of Brassica napus. Tissues in which glucosinolates were hydrolyzed to remove volatile glucosinolate degradation products were compared with intact tissues and water controls. Only tissues containing glucosinolates produced volatiles that inhibited germination. Volatiles were trapped and identified using GC-MS. Volatiles produced in greater quanitity from intact tissues than from tissues without glucosinolates were almost exclusively glucosinolate hydrolysis products. Water-soluble components also inhibited germination. Chemical analysis of extracts confirmed the presence of glucosinolate hydrolysis products, but indicated the involvement of additional allelochemicals, especially in leaf and stem tissues. Results support the proposal that glucosinolate-containing plant tissues may contribute to reductions in synthetic pesticide use if weed seeds are targeted. Kluwer Academic Publishers, 1996 allelochemicals nationallicence Brassica napus nationallicence germination nationallicence glucosinolates nationallicence isothiocyanates nationallicence rapeseed nationallicence ITC : isothiocyanates nationallicence CN : organic cyanides nationallicence OZT : oxazolidinethione nationallicence iRoot : intact root tissue nationallicence iL&S : intact leaf and stem tissue nationallicence hRoot : hydrolyzed root tissue nationallicence hL&S : hydrolyzed leaf and stem tissue nationallicence Brown P. Division of Soil Science, University of ldaho, 83844-2339, Moscow, ID, USA aut Morra M. Division of Soil Science, University of ldaho, 83844-2339, Moscow, ID, USA aut Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 181/2(1996-04-01), 307-316 0032-079X 181:2<307 1996 181 11104 https://doi.org/10.1007/BF00012065 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00012065 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Brown P. Division of Soil Science, University of ldaho, 83844-2339, Moscow, ID, USA aut NATIONALLICENCE 700 1- Morra M. Division of Soil Science, University of ldaho, 83844-2339, Moscow, ID, USA aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 181/2(1996-04-01), 307-316 0032-079X 181:2<307 1996 181 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer