Jasmonates induce over-accumulation of methylputrescine and conjugated polyamines in Hyoscyamus muticus L. root cultures

S Biondi, S Fornale, KM Oksman-Caldentey, M Eeva… - Plant Cell Reports, 2000 - Springer
Jasmonic acid (JA) and its methyl ester (MeJA) at concentrations ranging from 0.001 to 10
μM provoked large increases in methylputrescine levels in normal and hairy roots of …

Secondary metabolism in root and callus cultures of Hyoscyamus muticus L.: the relationship between morphological organisation and response to methyl jasmonate

S Biondi, S Scaramagli, KM Oksman-Caldentey, F Poli - Plant Science, 2002 - Elsevier
Production of acid-soluble conjugated di-and polyamines, like that of other secondary
metabolites, is enhanced by exposure to methyl jasmonate (MJ). We investigated this …

Methyl jasmonate alters polyamine metabolism and induces systemic protection against powdery mildew infection in barley seedlings

D Walters, T Cowley, A Mitchell - Journal of Experimental Botany, 2002 - academic.oup.com
Abstract Treatment of the first leaves of barley (Hordeum vulgare L. cv. Golden Promise)
seedlings with methyl jasmonate (MJ) led to small, but significant increases in levels of free …

Enzymes of N-methylputrescine biosynthesis in relation to hyoscyamine formation in transformed root cultures of Datura stramonium and Atropa belladonna

NJ Walton, RJ Robins, ACJ Peerless - Planta, 1990 - Springer
The activities of enzymes related to the biosynthesis of N-methylputrescine, a precursor of
the alkaloid hyoscyamine, have been measured in root cultures of Datura stramonium L. and …

Putrescine and putrescine N-methyltransferase in the biosynthesis of tropane alkaloids in cultured roots of Hyoscyamus albus I. Biochemical studies

T Hashimoto, Y Yukimune, Y Yamada - Planta, 1989 - Springer
The activity of arginine decarboxylase (EC 4.1. 1.19) in cultured roots of Hyoscyamus albus
L., which produce considerable amounts of tropane alkaloids, was twice that of ornithine …

Hairy root cultures of Hyoscyamus muticus: effect of polyamine biosynthesis inhibitors.

S Biondi, M Mengoli, D Mott, N Bagni - 1993 - cabidigitallibrary.org
The effects were investigated of several polyamine synthesis inhibitors on root growth and
morphology and on polyamine content of normal and transformed (with Agrobacterium …

Interaction of methyl jasmonate, wounding and fungal elicitation during sesquiterpene induction in Hyoscyamus muticus in root cultures

G Singh, J Gavrieli, JS Oakey, WR Curtis - Plant cell reports, 1998 - Springer
The ability of methyl jasmonate (MeJa) to induce sesquiterpene production in root cultures of
Hyoscyamus muticus has been studied. Although MeJa alone could not induce …

Effects of methyl jasmonate and salicylic acid on the production of tropane alkaloids and the expression of PMT and H6H in adventitious root cultures of Scopolia …

SM Kang, HY Jung, YM Kang, DJ Yun, JD Bahk… - Plant Science, 2004 - Elsevier
The effects of methyl jasmonate (MJ) and salicylic acid (SA) on the production of tropane
alkaloids (TA) and the expression of putrescine N-methyltransferase (PMT) and …

The conversion of spermidine to putrescine and 1, 3-diaminopropane in the roots of Limonium tataricum

C Duhazé, G Gouzerh, D Gagneul, F Larher… - Plant Science, 2002 - Elsevier
Spermidine degradation has been studied in Limonium tataricum because it was suspected
to be involved in β-alanine and β-alanine betaine biosynthesis, the typical betaine of this …

Tropane alkaloids production in transgenic Hyoscyamus niger hairy root cultures over-expressing Putrescine N-methyltransferase is methyl jasmonate-dependent

L Zhang, B Yang, B Lu, G Kai, Z Wang, Y Xia, R Ding… - Planta, 2007 - Springer
The cDNA from Nicotiana tabacum encoding Putrescine N-methyltransferase (PMT), which
catalyzes the first committed step in the biosynthesis of tropane alkaloids, has been …