scholarly journals Activity of cell wall degrading glycanases in methyl jasmonate-induced leaf abscission in Kalanchoe blossfeldiana

2013 ◽  
Vol 48 (1) ◽  
pp. 69-74 ◽  
Author(s):  
Marian Saniewski ◽  
Ewa Gajewska ◽  
Henryk Urbanek
Keyword(s):  
Cell Wall ◽  
Methyl Jasmonate ◽  
Apical Part ◽  
Abscission Zone ◽  
Leaf Abscission ◽  
Cell Wall Polysaccharides ◽  
Kalanchoe Blossfeldiana ◽  
Kalanchoë Blossfeldiana

It was found previously that methyl jasmonate (JA-Me) induced leaf abscission in <em>Kalanchoe blossfeldiana</em>. In present studies it was shown that JA-Me markedly increased the total activities of cellulase, polygalacturonase, pectinase and xylanase in petioles, but did not affect activities of these enzymes in the blades and apical part of shoots of <em>K. blossfeldiana</em>. These results suggest that methyl jasmonate promotes the degradation of cell wall polysaccharides in the abscission zone and in this way induces leaf abscission in <em>Kalanchoe blossfeldiana</em>.

scholarly journals Fatty acid and sterol contents during methyl jasmonate-induced leaf abscission in Kalanchoe blossfeldiana

2013 ◽  
Vol 47 (2) ◽  
pp. 83-88
Author(s):  
Marian Saniewski ◽  
Janusz Czapski ◽  
Marcin Horbowicz
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Methyl Jasmonate ◽  
Leaf Abscission ◽  
Kalanchoe Blossfeldiana ◽  
Kalanchoë Blossfeldiana

It was found previously that methyl jasmonate (JA-Me) induced leaf abscission in <i>Kalanchoe blossfeldiana</i>. In present studies it was showed that JA-Me did not affect or only slightly affected the content of free and bound fatty acids in petioles and blades. ß-Sitosterol, campesterol and ß-amyrin were identified in petioles and blades of <i>K. blossfeldiana</i>; JA-Me decreased the content of campesterol in petioles and increased the content of ß-sitosterol in blades. In blades of plants treated with JA-Me disappearance of olean-12-one was indicated but appearance of 2H-cyclopropa[a]-naphthalen-2-one,l, la, 4, 5, 6, 7, 7a, 7b-octahydro-l, 1, 7, 7a-tetramethyl (aristolone) was documented. The significance of these findings in leaf abscission induced by methyl jasmonate in <i>K. blossfeldiana</i> is discussed.

scholarly journals The Effect Of Some Plant Growth Regulators And Their Combination With Methyl Jasmonate On Anthocyanin Formation In Roots Of Kalanchoe Blossfeldiana

2014 ◽  
Vol 22 (2) ◽  
pp. 31-40 ◽  
Author(s):  
Justyna Góraj ◽  
Elżbieta Węgrzynowicz-Lesiak ◽  
Marian Saniewski
Keyword(s):  
Abscisic Acid ◽  
Plant Growth ◽  
Methyl Jasmonate ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Anthocyanin Accumulation ◽  
Kalanchoe Blossfeldiana ◽  
Isolated Roots ◽  
Whole Plants ◽  
Kalanchoë Blossfeldiana

AbstractIn this study, we investigated the effect of plant growth regulators (PGRs) - auxins, gibberellin, cytokinin, abscisic acid, brassinosteroid, ethylene and their interaction with methyl jasmonate (JA-Me) applied to roots of the whole plants Kalanchoe blossfeldiana on the accumulation of anthocyanins in roots. The highest stimulation of anthocyanins synthesis was stated with application of JA-Me alone. In response to treatments with the other tested PGRs, the content of anthocyanins in roots of a whole plant was different depending on the concentration of the PGR when being applied alone or together with JA-Me. Auxin, indole-3-acetic acid (IAA) at a concentration of 50 mg·L-1, indole-3-butyric acid (IBA) at 5 mg·L-1 and abscisic acid (ABA) at 10 mg·L-1 induced anthocyanin accumulation with approximately 60-115% compared to the control while 24-epibrassinolid (epiBL), gibberellic acid (GA3) and 6-benzylaminopurine (BAP) had no effect on the anthocyanin accumulation. The simultaneous administration of the PGRs with JA-Me usually resulted in the accumulation of anthocyanins in roots in a manner similar to that caused by JA-Me. PGRs applied to isolated roots did not stimulate anthocyanin accumulation, except for the combination of JA-Me with 50 mg·L-1 IAA. The results indicate that in K. blossfeldiana, the aboveground parts of the plant play an important role in the biosynthesis of anthocyanins in roots.

Methyl jasmonate stimulates the formation and the accumulation of anthocyanin in Kalanchoe blossfeldiana

2003 ◽  
Vol 25 (2) ◽  
pp. 143-149 ◽  
Author(s):  
Marian Saniewski ◽  
Marcin Horbowicz ◽  
Jerzy Puchalski ◽  
Junichi Ueda
Keyword(s):  
Methyl Jasmonate ◽  
Kalanchoe Blossfeldiana ◽  
Kalanchoë Blossfeldiana

scholarly journals The effect of sugars in relation to methyl jasmonate on anthocyanin formation in the roots of Kalanchoe blossfeldiana (Poelln.)

2015 ◽  
Vol 32 (2) ◽  
pp. 173-178 ◽  
Author(s):  
Justyna Góraj-Koniarska ◽  
Marian Saniewski
Keyword(s):  
Methyl Jasmonate ◽  
Anthocyanin Content ◽  
Anthocyanin Accumulation ◽  
Sugar Alcohols ◽  
Anthocyanin Formation ◽  
Intact Plants ◽  
Kalanchoe Blossfeldiana ◽  
Kalanchoë Blossfeldiana

<p>This study investigated the effects of different sugars (sucrose, fructose, glucose) and sugar alcohols (mannitol, sorbitol) applied alone and in solution with methyl jasmonate (JA-Me) on the anthocyanin content in the roots of <em>Kalanchoe blossfeldiana</em>. None of the sugars used individually in the experiment affected anthocyanin accumulation in the roots of intact plants. The anthocyanin level was similar to that in the control. Sucrose at concentrations of 0.5% and 3.0%, and glucose at a concentration of 3.0% inhibited anthocyanin accumulation induced by JA-Me. Only fructose at a concentration of 3.0% stimulated anthocyanin accumulation induced by JA-Me. The sugar alcohols, mannitol at a concentration of 3.0% and sorbitol at 0.5% and 3.0%, inhibited anthocyanin accumulation in the roots of intact <em>K. blossfeldiana</em> plants induced by JA-Me. In excised roots, both sugars and JA-Me used individually did not affect the formation of anthocyanins. Also, the sugar alcohols (mannitol and sorbitol) applied simultaneously with JA-Me had no effect on the accumulation of anthocyanins. However, roots treated with sugars (sucrose, fructose, glucose) in solution with JA-Me promoted the induction of anthocyanins in the apical parts of the roots. </p><p>The results suggest that anthocyanin elicitation in the roots of <em>K. blossfeldiana</em> by methyl jasmonate may be dependent on the interaction of JA-Me with sugars transported from the stems (leaves) to the roots.</p>

scholarly journals Elicitation of Anthocyanin Production in Roots of Kalanchoe blossfeldiana by Methyl Jasmonate

2015 ◽  
Vol 57 (1) ◽  
pp. 141-148 ◽  
Author(s):  
Justyna Góraj-Koniarska ◽  
Anna Stochmal ◽  
Wiesław Oleszek ◽  
Jarosław Mołdoch ◽  
Marian Saniewski
Keyword(s):  
Methyl Jasmonate ◽  
Natural Light ◽  
Anthocyanin Accumulation ◽  
Light Conditions ◽  
Intact Plants ◽  
Kalanchoe Blossfeldiana ◽  
Isolated Roots ◽  
Anthocyanin Production ◽  
Kalanchoë Blossfeldiana

AbstractThe influence of methyl jasmonate on anthocyanin accumulation in roots ofKalanchoe blossfedianaplants was studied. Methyl jasmonate (JA-Me), at a concentration of 5.0 to 40.0 mg.l−1, substantially increased anthocyanin accumulation in roots of intact plants, when it was applied as a solution under natural light conditions. The production of anthocyanin depended on the concentration of methyl jasmonate and the age of the plant. The stimulatory effect was higher in older plants ofK. blossfeldianathan in younger ones. When leaves were removed methyl jasmonate slightly stimulated anthocyanin accumulation compared with intact plants. The obtained results indicate that leaves are necessary for the anthocyanin accumulation in the roots. In isolated roots methyl jasmonate did not affect the accumulation of anthocyanins in light conditions. Seven anthocyanins were documented in the roots of control plants and 8 anthocyanins in the roots of JA-Me treated ones. JA-Me increased the level of anthocyanins in roots of oldK. blossfeldianaplants 6.8, 6.0 and 3.6-folds, after 4, 8 and 14-days of treatment, respectively.

Relationships between Soybean Seed Cell Wall Polysaccharides, Yield, and Seed Traits

Crop Science ◽  
2003 ◽  
Vol 43 (2) ◽  
pp. 571 ◽  
Author(s):  
S. K. Stombaugh ◽  
J. H. Orf ◽  
H. G. Jung ◽  
D. A. Somers
Keyword(s):  
Cell Wall ◽  
Soybean Seed ◽  
Seed Traits ◽  
Cell Wall Polysaccharides ◽  
Seed Cell
Sign in / Sign up

Export Citation Format

Share Document