Cytokinins in tRNA of Corynebacterium fascians
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چکیده
منابع مشابه
Cytokinins: identification of compounds isolated from Corynebacterium fascians.
KlAmbt, Thies, and Skoog' have described the isolation and the biological effects on tobacco tissue cultures of several organic bases, obtained as their picrates, from large-scale batches of Corynebacterium fascians. In a cooperative effort with the Wisconsin workers, we have been able to identify these substances, by spectrometric means and by comparison with authentic samples, as the picrates...
متن کاملIsolation of cis-Zeatin from Corynebacterium fascians Cultures.
Three cytokinin-active constituents have been isolated from the culture medium of Corynebacterium fascians, a plant pathogen causing fasciation. One constituent is now identified as cis-zeatin [6-(4-hydroxy-3-methyl-cis-2-butenylamino)purine]. It represents the first unequivocal demonstration of the production of a zeatin isomer by a bacterial species. Another constituent was identified earlier...
متن کاملMethylated Cytokinins from the Phytopathogen Rhodococcus fascians Mimic Plant Hormone Activity.
Cytokinins (CKs), a class of phytohormones that regulate plant growth and development, are also synthesized by some phytopathogens to disrupt the hormonal balance and to facilitate niche establishment in their hosts. Rhodococcus fascians harbors the fasciation (fas) locus, an operon encoding several genes homologous to CK biosynthesis and metabolism. This pathogen causes unique leafy gall sympt...
متن کاملRelationships between cytokinin production, presence of plasmids, and fasciation caused by strains of Corynebacterium fascians.
Cytokinin activity in the culture medium of four pathogenic strains of Corynebacterium fascians varied from 168 to 0.4 mug of kinetin (6-furfurylaminopurine) equivalents per liter, as compared to 0.2 in an avirulent control. N(6)-Isopentenyladenine was the predominant cytokinin in the medium of all five strains, and its increased production was correlated with the degree of pathogenicity; howev...
متن کاملZeatin ribonucleosides in the transfer ribonucleic acid of Rhizobium leguminosarum, Agrobacterium tumefaciens, Corynebacterium fascians, and Erwinia amylovora.
Until recently, the presence in transfer ribonucleic acid (tRNA) of the hydroxylated cytokinin ribosylzeatin [N6-(4-hydroxy-3-methylbut-2-enyl)adenosine]was thought to be unique to higher plants. This extension of work from several laboratories indicates the presence of 2-methylthioribosylzeatin in the tRNA of the plant-associated bacteria Rhizobium leguminosarum, Agrobacterium tumefaciens, and...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1968
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.43.3.451