The jasmonates are well studied in the context of plant defence but increasingly are also recognised as playing roles in development. In many systems, jasmonates antagonise the effects of cytokinins. The aim of the present work was to elucidate interactions between methyl jasmonate and cytokinin (benzyladenine) in regulating growth of zucchini (Cucurbita pepo L., cv. Cocozelle, var. Tripolis) c...

The study was carried out to assess the optimum incubation time for cowpea seed priming and determine concentration of salicylic acid (SA) methyl jasmonate (MJ) priming. We have observed that with is 6 hrs. Furthermore, we analysed effects different concentrations SA MJ on germination percentage root length genotypes. saw decreased number seeds sprouted, while first roots.

It has been suggested that cesium is absorbed from the soil through potassium uptake machineries in plants; however, not much is known about perception mechanism and downstream response. Here, we report that the jasmonate pathway is required in plant response to cesium. Jasmonate biosynthesis mutant aos and jasmonate-insensitive mutant coi1-16 show clear resistance to root growth inhibition cau...

Cytochrome b5 (CB5) proteins are small heme-binding proteins, that influence cytochrome P450 activity. While only one CB5 isoform is found in mammals, higher plants have several isoforms of these proteins. The roles of the many CB5 isoforms in plants remain unknown. We hypothesized that CB5 proteins support the cytochrome P450 enzymes of plant specialized metabolism and found CB5C from Arabidop...

Elicitors are compounds, which activate chemical defences in plants. Various biosynthetic pathways are activated in treated plants depending on the compound used. The most intensively studied elicitor for manipulating defence pathways in plants is methyl jasmonate, which modifies e.g. the production of terpenoids, the main constituents of conifer oleoresin. Other commonly tested chemical elicit...

Jasmonic acid and its methyl ester, methyl jasmonate (MeJA), are plant signaling molecules that affect plant growth and gene expression. Primary root growth of wild-type Arabidopsis thaliana seedlings was inhibited 50% when seedlings were grown on agar medium containing 0.1 M MeJA. An ethyl methanesulfonate mutant (jar1) with decreased sensitivity to MeJA inhibition of root elongation was isola...

Transcriptional profiling and molecular characterization of astragalosides, 1 calycosin, and calycosin-7-O-β-D-glucoside biosynthesis in the hairy roots of 2 Astragalus membranaceus in response to methyl jasmonate 3 4 Pham Anh Tuan, Eunsook Chung, Aye Aye Thwe, Xiaohua Li, Yeon Bok Kim, 5 Jai-Heon Lee, Sang Un Park 6 7 Department of Crop Science, Chungnam National University, 99 Daehak-ro, 8 Yu...

Background: Methyl jasmonate is a bioactive oxylipid that participates in the defense-related mechanisms of plants. The anti-inflammatory and anti-oxidative capacities methyl against lipopolysaccharide (LPS) induced arthritis have been widely investigated. However, role LPS-induced cell model tubular-interstitial nephritis (TIN) has not reported. Methods: LPS (5 µg/mL) was applied to treat huma...

The changes in respiration rate and soluble sugar content of detached rice (Oryza sativa) leaves were followed during methyl jasmonate (MJ)-promoted senescence. Increase in the respiration of detached rice leaves was observed as a consequence of methyl jasmonate (MJ) treatment for 48 h. However, MJ had no effect on photosynthetic rate in rice leaves. Sucrose and glucose contents, but not fructo...

Jasmonates are generally considered to mediate signalling, such as defence responses, flowering and senescence. However, factors involved in the jasmonate signal-transduction pathway remain unclear. To clarify the functions and signalling mechanisms of jasmonates on a genome-wide level, we adopted a cDNA macroarray technique. We prepared nylon filters of a cDNA macroarray on which 2880 independ...