caa a22 4500 463160746 CHVBK 20180406164747.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10535-007-0062-4 doi (NATIONALLICENCE)springer-10.1007/s10535-007-0062-4 Effects of methyl jasmonate and excess copper on root and leaf growth [Elektronische Daten] [W. Maksymiec, Z. Krupa] A short time effects of 25 and 150 µM Cu2+ or 50 µM methyl jasmonate (MJ) on growth of roots and leaves of Phaseolus coccineus, Allium cepa and Zea mays were investigated. Both Cu2+ and MJ inhibited root growth. Jasmonate synthesis inhibitors (ibuprofen, IB, salicylhydroxamic acid, SHAM, and propylgallate, PG) partially reversed the inhibitory effect of Cu2+ in P. coccineus, but in A. cepa this effect was not clear. Pretreatment with NADPH oxidase inhibitor (20 mM imidazole, IM), and especially ethylene inhibitor (silver thiosulphate, STS) mostly weakened Cu2+ effect on root growth in P. coccineus and A. cepa. The growth of P. coccineus leaves also slowed down by Cu2+ and this effect was partially ameliorated by IB, PG and IM, and completely by SHAM and STS. In Z. mays the effect of STS was considerably lower than that of PG and SHAM which reversed the effect of Cu2+. These results indicate that jasmonate, ethylene and NADPH oxidase activity may be involved in Cu2+ inhibitory action on the roots of dicotyledon plants, but in A. cepa only ethylene and NADPH oxidase are involved. However, leaf growth inhibition induced by excess Cu2+ is connected in Z. mays especially with jasmonate, and in P. coccineus with ethylene, NADPH oxidase and, to a minor degree, with jasmonate. Institute of Experimental Botany, ASCR, 2007 ethylene nationallicence heavy metal nationallicence hydrogen peroxide nationallicence NADPH oxidase nationallicence signalling nationallicence IB : ibuprofen nationallicence IM : imidazole nationallicence JA : jasmonic acid nationallicence MJ : methyl jasmonate nationallicence PG : propylgallate nationallicence SHAM : salicylhydroxamic acid nationallicence STS : silver thiosulphate nationallicence Maksymiec W. Department of Plant Physiology, Maria Curie-Skłodowska University, PL-20033, Lublin, Poland aut Krupa Z. Department of Plant Physiology, Maria Curie-Skłodowska University, PL-20033, Lublin, Poland aut Biologia Plantarum Kluwer Academic Publishers-Consultants Bureau 51/2(2007-06-01), 322-326 0006-3134 51:2<322 2007 51 10535 https://doi.org/10.1007/s10535-007-0062-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10535-007-0062-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maksymiec W. Department of Plant Physiology, Maria Curie-Skłodowska University, PL-20033, Lublin, Poland aut NATIONALLICENCE 700 1- Krupa Z. Department of Plant Physiology, Maria Curie-Skłodowska University, PL-20033, Lublin, Poland aut NATIONALLICENCE 773 0- Biologia Plantarum Kluwer Academic Publishers-Consultants Bureau 51/2(2007-06-01), 322-326 0006-3134 51:2<322 2007 51 10535 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer