Published May 1975 | Version v1
Journal article Metadata-only

Discrimination of calcium against strontium in plants with a cryptating agent

Creators

  • 1. Hohenheim Univ. (F.R. Germany). Abt. fuer Pflanzenernaehrung

Description

The effects of cryptating agents are studied in 45CaCl2- and 90SrCl2-labelled seedlings of bush beans. The cryptating agent used was Kryptofix 222 (4, 7, 13, 16, 21, 24-Hexaoxa-1, 10, diazobicyclo-8, 8, 8-hexacosan). Kryptofix 222 induces a discrimination in favour of Ca against Sr chelation. The Sr2+ concentration in the substrate is thus reduced as well as Sr2+ uptake as compared to Ca2+ uptake. This is the indirect reason why Kryptofix 222 is able to increase the Ca/Sr ratio in plants. (GSE/AK)

Abstract (German)

An Keimlingen von Buschbohnen, die mit 45CaCl2 bzw. 90SrCl2 markiert sind, wird die Wirkung von Kryptaten untersucht. Als Kryptat diente Kryptofix 222 (4, 7, 13, 16, 21, 24-hexaxoa-1, 10, diazobicylo -8, 8, 8-hexacosan). Kryptofix 222 induziert zwischen den beiden Ionen Ca++ und Sr++ eine Diskriminierung, indem die Legierung von Ca gegenueber Sr bevorzugt wird. Dadurch wird die Sr2+-Konzentration im Substrat reduziert und damit auch die Sr2+-Aufnahme gegenueber der Ca2+-Aufnahme. Das ist ein indirekter Grund dafuer, warum das Verhaeltnis von Ca/Sr in den Pflanzen durch Kryptofix erhoeht werden kann. (GSE)

Additional details

Identifiers

DOI
10.1007/bf00603175;

Publishing Information

Journal Title
Die Naturwissenschaften
Journal Volume
62
Journal Issue
5
Series
Naturwissenschaften.
Journal Page Range
238-238
ISSN
0028-1042

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
6209795
Subject category
S62: RADIOLOGY AND NUCLEAR MEDICINE;
Descriptors DEI
BUILDUP; CALCIUM 45; CHLORIDES; DECONTAMINATION; EDTA; FALLOUT; FALLOUT DEPOSITS; PHASEOLUS; STRONTIUM 90; TRACER TECHNIQUES; UPTAKE
Descriptors DEC
AMINO ACIDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALCIUM ISOTOPES; CARBOXYLIC ACIDS; CHELATING AGENTS; CHLORINE COMPOUNDS; CLEANING; DAYS LIVING RADIOISOTOPES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HALIDES; HALOGEN COMPOUNDS; INTERMEDIATE MASS NUCLEI; ISOTOPE APPLICATIONS; ISOTOPES; LEGUMINOSAE; NUCLEI; ORGANIC ACIDS; ORGANIC COMPOUNDS; PLANTS; RADIOISOTOPES; STRONTIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
1 fig.; 7 refs.; Updated automatically by Metadata and Full-Text Enrichment Agent