Abstract
Tissue ATP concentrations in slices of red beet increase progressively with time for up to 7 days after cutting the root. ATP levels are higher in slices taken from stored roots than in slices from fresh roots. ATP is reduced during incubation in salt solutions.
Plasmalemma influxes were measured by 6 minutes incubation with 42K and/or 36C1 under conditions in which cation and anion influxes are independent. Both fluxes showed an approximately linear correlation with ATP level when the latter was varied by addition of CN−, carbonyl cyanide m-chlorophenylhydrazone, or oligomycin, except for Cl influx with oligomycin, where oligomycin had a greater effect on Cl influx than could be accounted for by the reduction in ATP alone.
These results support the view that K+ and Cl− influxes are both energized directly or indirectly by ATP, and in addition that the Cl pump may be directly inhibited by oligomycin.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Atkinson M. R., Eckermann G., Grant M., Robertson R. N. Salt accumulation and adenosine triphosphate in carrot xylem tissue. Proc Natl Acad Sci U S A. 1966 Mar;55(3):560–564. doi: 10.1073/pnas.55.3.560. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cram W. J. Respiration and energy-dependent movements of chloride at plasmalemma and tonoplast of carrot root cells. Biochim Biophys Acta. 1969 Mar 11;173(2):213–222. doi: 10.1016/0005-2736(69)90105-9. [DOI] [PubMed] [Google Scholar]
- Cram W. J. Short term influx as a measure of influx across the plasmalemma. Plant Physiol. 1969 Jul;44(7):1013–1015. doi: 10.1104/pp.44.7.1013. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lin W., Hanson J. B. Phosphate absorption rates and adenosine 5'-triphosphate concentrations in corn root tissue. Plant Physiol. 1974 Sep;54(3):250–256. doi: 10.1104/pp.54.3.250. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Malone C. P., Burke J. J., Hanson J. B. Histochemical Evidence for the Occurrence of Oligomycin-sensitive Plasmalemma ATPase in Corn Roots. Plant Physiol. 1977 Dec;60(6):916–922. doi: 10.1104/pp.60.6.916. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Petraglia T., Poole R. J. Effect of anoxia on ATP levels and ion transport rates in red beet. Plant Physiol. 1980 May;65(5):973–974. doi: 10.1104/pp.65.5.973. [DOI] [PMC free article] [PubMed] [Google Scholar]