Effect of 3-Amino-l,2,4-triazole (Amitrole) on Cytoplasmic and Chloroplast rRNA of Oat Seedlings

Baumann, Ingrid; Baumann, G.; Günther, G.

doi:10.1016/s0015-3796(17)30290-1

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…The latter method involves the determination of sequence similarities of oligonucleotides having over fi ve bases (50). A comparison of the results for eight species common to all these studies indicates that nearly identical results were obtained with all three methods (9,51,66,76,80).…”

Section: Rrna Homologymentioning

confidence: 91%

“…Between five and ten identical or virtually identical copies are present in each chromosome (87). In Vibrio and Photobacterium the relationship of 16S + 23S rRNA has been studied by means of in vitro rRNNDNA competition experi ments using the nitrocellulose filter technique (9). Most of the discussion concerning in vitro DNAIDNA hybridization is also applicable to this method (84,85).…”

Section: Rrna Homologymentioning

confidence: 99%

“…and the Enterobacteriaceae. Dendrogram of rRNA homology redrawn from(2 2) [based on data from(9 )] and unpublished data of L. Baumann & P. Baumann. In the two-dimensional plot of the GS data the positions of the species were determined by their ImDs to the two refer' �nce strains, V. alginolyticus and E. coli, which were related by 32 ImD units.…”

mentioning

confidence: 99%

See 2 more Smart Citations

EVOLUTIONARY RELATIONSHIPS IN VIBRIO AND PHOTOBACTERIUM: A BASIS FOR A NATURAL CLASSIFICATION

Baumann¹,

Baumann²,

Woolkalís³

et al. 1983

Annu. Rev. Microbiol.

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Section: Rrna Homologymentioning

confidence: 91%

Section: Rrna Homologymentioning

confidence: 99%

See 1 more Smart Citation

EVOLUTIONARY RELATIONSHIPS IN VIBRIO AND PHOTOBACTERIUM: A BASIS FOR A NATURAL CLASSIFICATION

Baumann¹,

Baumann²,

Woolkalís³

et al. 1983

Annu. Rev. Microbiol.

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Appraisal of studies on induction of peroxidase and associated porphyrin metabolism

Huystee

Cairns

1980

Bot. Rev

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Comparative Investigation of the Action of Several Chlorosis-inducing Herbicides on the Biogenesis of Chloroplasts and Leaf Microbodies

Feierabend

Schubert²

1978

Plant Physiol.

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Seedlings of Triticum aestivum L. and Secale cereale L. were grown in the presence of six different (five having different chemical structures) chlorosis-inducing herbicides: aminotriazole and its derivative SDR 5175, haloxidine, Sandoz 6706, fluometuron, and EMD-IT 5914. Concentrations were applied which allowed the leaves to grow normally and to reach normal total amino nitrogen contents but evoked a complete chlorosis (less than 6% chlorophyll). The effects of the herbicides on the accumulation of several chloroplast constituents and on peroxisomal and mitochondrial marker enzyme activities were compared. Wheat and rye, in general, gave very similar results, wheat being more sensitive to unspecific inhibitory effects.In dark-grown plants, the herbicides had no or only minor effects on the rRNA pattern and on enzyme activities of the leaves. In the light, all herbicides applied prevented the accumulation of carotenoids and of chloroplastic rRNA. Consequently, ribulose-1,5-bisphosphate carboxylase activity was virtually absent. After all herbicide treatments in light, the leaves contained only rather low catalase activity. In the presence of aminotriazole and haloxidine, the chloroplast-specific NADP-glyceraldehyde-3-phosphate dehydrogenase and the peroxisomal enzymes glycolate oxidase and hydroxypyruvate reductase had high or even normal activities, as in untreated leaves. In leaves treated with Sandoz 6706, fluometuron, or EMD-IT 5914, the activities of the latter three enzymes were, in parallel, only very low. Some herbicides interfered with enzyme activities in vitro, particularly with those of catalase and of glycolate oxidase. Among mitochondrial enzymes, cytochrome c oxidase activity was either unaffected or lower, while fumarase had considerably higher activities in the herbicidetreated, as compared to untreated leaves. The specific effects on peroxisomal enzymes cannot be explained by the hypothesis of herbicide-induced photodestructions in carotene-deficient plastids. Alternative explanations for the genesis of the chlorosis are discussed.

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Effect of 3-Amino-l,2,4-triazole (Amitrole) on Cytoplasmic and Chloroplast rRNA of Oat Seedlings

Cited by 3 publications

References 17 publications

EVOLUTIONARY RELATIONSHIPS IN VIBRIO AND PHOTOBACTERIUM: A BASIS FOR A NATURAL CLASSIFICATION

EVOLUTIONARY RELATIONSHIPS IN VIBRIO AND PHOTOBACTERIUM: A BASIS FOR A NATURAL CLASSIFICATION

Appraisal of studies on induction of peroxidase and associated porphyrin metabolism

Comparative Investigation of the Action of Several Chlorosis-inducing Herbicides on the Biogenesis of Chloroplasts and Leaf Microbodies

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