Streptomycin induced changes in growth and metabolism of etiolated seedlings
- 1 January 1975
- journal article
- Published by Institute of Experimental Botany in Biologia plantarum
- Vol. 17 (1) , 60-66
- https://doi.org/10.1007/bf02921076
Abstract
Effects of various concentrations of streptomycin sulphate either alone or in combination with different cations and hormones on mungbean (Phaseolus aureus L.) seedling growth were studied. The relative inhibition of root growth was stronger than that of hypocotyl growth. Root growth inhibition was completely overcome by calcium, while other cations were ineffective. Inhibition of hypocotyl elongation could not be prevented by cations. IAA and GA3 were capable of relieving streptomycin inhibition but kinetin was ineffective. In the coleoptiles of streptomycin-treated rice (Oryza sativa L.) seedlings, there were accumulation of nucleic acids and decline in protein content resulting in increased RNA/protein and DNA/protein ratios. High nucleic acid content induced by streptomycin could be correlated with reduced activity of the nucleases. Byl studován účinek různých koncentrací síranu streptomycinu bud samotného, nebo v přítomnosti některých kationtů a hormonů, na růst klíčních rostlin fazolu zlatého (Phaseolus aureus L.). Relativní inhibice růstu kořenů byla vyšší než inhibice růstu hypokotylu. Tato inhibice byla zcela překonána vápníkem, kdežto ostatní kationty byly neúčinné. K inhibici dlouživého růstu hypokotylu docházelo i v přítomnosti kationtů. IAA a GA3 snižovaly inhibiční účinek streptomycinu, ale kinetin byl neúčinný. V koleoptilích klíčních rostlin rýže (Oryza sativa L.) ošetřených streptomycinem docházelo k hromadění nukleových kyselin a k poklesu obsahu bílkovin, což vyvolalo zvýšení poměru RNA/bílkoviny a DNA/bílkoviny. Vysoký obsah nukleových kyselin vyvolaný streptomycinem by mohl souviset se snížením aktivity nukleáz.Keywords
This publication has 16 references indexed in Scilit:
- Hormones and Nucleic Acid MetabolismAnnual Review of Plant Physiology, 1969
- The Inhibition of Seedling Growth by Streptomycin SulfatePhysiologia Plantarum, 1969
- Relation of 2,4-D-Induced Growth Aberrations to Changes in Nucleic Acid Metabolism in Soybean SeedlingsBotanical Gazette, 1966
- Effects of Antibiotics on the Uptake of 35S-Methionine and 32PO4 and on their Incorporation into Protein and Ribonucleic Acid of Green Tobacco LeavesNature, 1965
- Studies on 2,4-D-Induced Changes in Ribonucleic Acid Metabolism in Excised Corn Mesocotyl TissueWeeds, 1963
- Nucleic Acid Determination in Storage Tissues of Higher PlantsPlant Physiology, 1962
- Effects of Antibiotics on PlantsAnnual Review of Plant Physiology, 1957
- A study of the conditions and mechanism of the diphenylamine reaction for the colorimetric estimation of deoxyribonucleic acidBiochemical Journal, 1956
- Inhibition of Root Growth by Streptomycin and Reversal of the Inhibition by ManganeseAmerican Journal of Botany, 1955
- [63] DeoxyribonucleasesPublished by Elsevier ,1955