Results 161 to 170 of about 14,984 (199)
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The absolute configuration of methyl jasmonate
Tetrahedron, 1965Abstract The absolute configuration of the jasmine oil constituent methyl jasmonate has been determined. Methyl dihydrojasmonate was synthesized from (−) 3-oxocyclopentaneacetic acid, whose configuration was established by three independent methods: (a) ORD comparison with 3-methylcyclopentanone, (b) synthesis from optically active norcamphor, and (c)
R.K. Hill, A.G. Edwards
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An Efficient Synthesis of Methyl (±)‐Jasmonate and (Z)‐Jasmone
Helvetica Chimica Acta, 1978AbstractAn efficient synthesis of methyl (±)‐jasmonate and (Z)‐jasmone is described. The Key step is a phase‐transfer reaction between cyclopentane (9) and 1, 4‐dibromo‐2‐pentene (6a/b) to give the spiro [2.4]hepten‐4‐ones 4a and 4b.
Ferdinand Näf, René Decorzant
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ChemInform Abstract: AN EFFICIENT SYNTHESIS OF METHYL (.+‐.)‐JASMONATE AND CIS‐JASMONE
Chemischer Informationsdienst, 1979AbstractDie für die Synthese der Titelverbindungen (V) und (VI) benötigten Spiroheptenone (III) (1:4‐Isc merengemisch) werden aus Cyclopentanon (I) und den isomeren Dibromiden (II) dargestellt (Mechanismus).
F. NAEF, R. DECORZANT
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The role of jasmonic acid and methyl jasmonate in enhancing photosynthesis and stress response
Journal of Plant PhysiologyJasmonic acid (JA) and methyl jasmonate (MeJA) regulate photosynthetic efficiency, antioxidant defense, and adaptive responses to environmental stressors. This review explores their biosynthesis, signaling pathways, and functional roles in modulating photosynthesis and enhancing stress resilience.
Saykat Dey Sonatan +4 more
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Physiologia Plantarum, 2004
The oxylipin pathway mediates wound‐ and herbivore‐induced defense reactions in Nicotiana attenuata as evidenced by a transient jasmonic acid (JA)‐burst that precedes these defense responses. The fate of this induced JA‐burst remains unknown. Two derivatives of JA, its methylester, methyl jasmonate (MeJA) and cis‐jasmone (cisJ), are thought to be a ...
von Dahl, C., Baldwin, I.
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The oxylipin pathway mediates wound‐ and herbivore‐induced defense reactions in Nicotiana attenuata as evidenced by a transient jasmonic acid (JA)‐burst that precedes these defense responses. The fate of this induced JA‐burst remains unknown. Two derivatives of JA, its methylester, methyl jasmonate (MeJA) and cis‐jasmone (cisJ), are thought to be a ...
von Dahl, C., Baldwin, I.
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Methyl jasmonate alleviates arsenic toxicity in rice
Plant Cell Reports, 2020Methyl jasmonate improved yield of both rice varieties under arsenic toxicity by alleviating oxidative stress through increasing the activity of antioxidant enzymes and decreasing arsenic accumulation by modulating arsenic transporters. Human health and rice cultivation are threatened by arsenic (As) contamination. Methyl jasmonate (MJ), as a regulator
Seyed Reza Mousavi +3 more
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Antinociceptive effects of methyl jasmonate in experimental animals
Journal of Natural Medicines, 2011Methyl jasmonate (MJ) is a chemical compound that has been postulated to play a role in plant wound and pathogen responses. While the anti-inflammatory property of MJ has been reported in literature, no studies have been carried out to describe its role in the modulation of pain.
Solomon, Umukoro, Abimbola S, Olugbemide
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ARE JASMONATES (Jasmonic acid and Methyl jasmonate) A NEW CLASS OF PLANT HORMONES
2014Bu çalışmada, bitkisel bir hormon olduğu iddia edilen jasmontlar hakkında genel açıklamalar yapılmıştır. Son yıllarda yapılan çalışmalar sonucunda, jasmonatların, bitklerde boyuna gelişme, köklerde büyüme, doku kültüründe gelişme, embriyogenesis, tohum ve polen çimlenmesi, çiçek gözü oluşumu ve fotosentez aktivitesi üzerinde engelleyici, doku ...
YILDIZ, Kenan, YILMAZ, Hüdai
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Methyl Jasmonate Reduces Water Stress in Strawberry
Journal of Plant Growth Regulation, 1999The effect of methyl jasmonate (MJ) on changes of oxygen-scavenging enzyme activities and membrane lipid composition was studied in strawberry leaves under water stress. Under water stress, MJ treatment reduced the increase of peroxidase (EC 1.11.1.7; POD) activity, maintained higher catalase (EC 1.11.1.6; CAT) and superoxide dismutase (EC 1.15.1.1 ...
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New synthesis of cyclopentenones. Methyl jasmonate and jasmone
The Journal of Organic Chemistry, 1971G. Buchi, B. Egger
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