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Gum in apricot [Prunus armeniaca L.] shoots induced by methyl jasmonate

100%

Saniewski M., Ueda J., Horbowicz M., Miyamoto K., Puchalski J.

Acta Agrobotanica

2001

tom 54

nr 2

It has been well known that some fungal pathogens (Monilia laxa, M. fructigena, Cytospora cincta), larvae of Grapholita molesta and plant hormone - ethylene, induce gummosis in apricot shoots. Methyl jasmonate (JA-Me) was also found to induce gummosis in apricot shoots as well as biotic and abiotic factors mentioned above. In order to know the mode of action of JA-Me on gum induction and/or formation, chemical composition of polysaccharides (after hydrolysis) in gums of apricot shoots induced by JA-Me compared with those by ethephon and their mixture, and naturally occurring ones was studied, resulted in the succesful identification of monosaccharides, and the similarity of a composition consisting of xylose, arabinose and galactose at molar ratio 1 : 10 : 14, respectively. These results suggest that beside different inducers of gum in apricot the mechanism of polysaccharides biosynthesis of gums is the same or similar. The physiological role for JA-Me on gum induction and/or formation in apricot shoots, and other species are also discussed.

Ograniczanie wyników

1 Acta Agrobotanica

1 Horbowicz M.

1 Miyamoto K.

1 Puchalski J.

1 Saniewski M.

1 Ueda J.

1 2001

Wyniki wyszukiwania

Gum in apricot [Prunus armeniaca L.] shoots induced by methyl jasmonate