منابع مشابه
Ethylene production from peptides and protein containing methionine.
It has been reported that the C0-C4 carbons of methionine are converted to ethylene in FMN-light (23) and Cu"!-ascorbate (10) model systems. Yang (22) has shown that C-C, carbons of 2-keto-4-methylthiobutyrate and the Cr, carbons of 3-methylthiopropionaldehyde (i.e., methional) are converted to ethylene in a model peroxidase system. When methionine was fed to apple tissue, the C-C4 carbons were...
متن کاملMethionine-induced Ethylene Production by Penicillium digitatum.
Shake cultures, in contrast to static cultures of Penicillium digitatum grown in liquid medium, were induced by methionine to produce ethylene. The induction was concentration-dependent, and 7 mM was optimum for the methionine effect. In the presence of methionine, glucose (7 mM) enhanced ethylene production but did not itself induce ethylene production. The induction process lasted several hou...
متن کاملStimulation of ethylene production in apple tissue slices by methionine.
Methionine can induce more than a 100% increase in ethylene production by apple tissue slices. The increased amount of ethylene derives from carbons 3 and 4 of methionine. Only post-climacteric fruit tissues are stimulated by methionine, and stimulation is optimum after 8 months' storage. Copper chelators such as sodium diethyl dithiocarbamate and cuprizone very markedly inhibit ethylene produc...
متن کاملPhotochemical production of ethylene from methionine and its analogues in the presence of flavin mononucleotide.
In the presence of flavin mononucleotide and light, methionine is nonenzymatically oxidized to carbon dioxide, formic acid, ethylene, methyl disulfide, and ammonia. Tracer studies indicate that these products arise, respectively, from carbon atoms 1, 2, 3, and 4, methyhnercapto, and amino groups of methionine. It is suggested that the f&t photochemical reaction is the oxidation of methionine to...
متن کاملBacterial ethylene synthesis from 2-oxo-4-thiobutyric acid and from methionine.
The ability of selected bacterial cultures to synthesize ethylene during growth in nutrient broth supplemented with methionine or 2-oxo-4-methylthiobutyric acid (KMBA) was examined. Although most cultures transformed KMBA into ethylene, only those of Escherichia coli SPAO and Chromobacterium violaceum were able to convert exogenously added methionine to ethylene. In chemically defined media, E....
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1965
ISSN: 0006-2936
DOI: 10.1042/bj0970449