Changes in jasmonates and 12-oxophytodienoic acid contents of Medicago sativa L. during somatic embryogenesis

• Autorzy: Rudus I , Kepczynska E. , Kepczynski J. , Wasternack C. , Miersch O.
• Języki publikacji: EN

Abstrakty

EN

Jasmonic acid (JA), its methyl ester (MeJA) and the biosynthetic precursor 12-oxophytodienoic acid (OPDA) were detected quantitatively during somatic embryogenesis of Medicago sativa L. Using GC-MS analysis, these compounds were found in initial explants, in calli and in somatic embryos in the nanogram range per gram of fresh weight. In distinct stages of somatic embryogenesis, JA and 12-OPDA accumulated preferentially in cotyledonary embryos. Initial explants exhibited about five-fold higher JA content than OPDA content, whereas in other stages OPDA accumutated predominantly. These data suggest that also in embryogenic tissues OPDA and JA may have individual signalling properties.

Słowa kluczowe

EN

plant physiology; change; somatic embryogenesis; methyl jasmonate; jasmonate; 2,4-D-2,4-dichlorophenoxyacetic acid; jasmonic acid; 12-oxophytodienoic acid; Medicago sativa

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2005
• Tom: 27
• Numer: 4A
• Opis fizyczny: p.497-504,fig.,ref.

Twórcy

autor

Rudus I

• Szczecin University, Waska 13, 71-415 Szczecin, Poland

autor

Kepczynska E.

autor

Kepczynski J.

autor

Wasternack C.

autor

Miersch O.

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