[Accumulation of salt in the embryo of Rhizophora mangle L. developing on the mother plant]
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Published on: March 14, 2025
1Staatsinstitut für Allgemeine Botanik Hamburg und Biochemische Abteilung der Chemischen Staatsinstitute Hamburg, Hamburg, Deutschland.
Abstract:
1. Accumulation of Cl, Na, K, Ca, and N in various stages of the growing embryo of Rhizophora mangle has been analysed during the development on the mother plant. 2. The determination has been carried out for 7 stages of development and for the following tissues: bottom of flower, pericarp, testa, cotyledonary body, and hypocotyl. Hypocotyl was divided into further stages. 3. Contents of Cl increase in the course of development in all tissues except testa. Contents of Cl also agree with decreasing osmotic value between pericarp and testa found by WALTER and PANNIER. 4. Contents of Na, K, and Ca partly increase and partly decrease in the various tissues and stages of age. While contents of Na in the hypocotyl are decreasing from base to top, contents of K are increasing in the same direction. 5. Contents of N increase in the bottom of the flower and cotyledonary body and decrease in the other tissues during development. 6. Changes in the contents of the analysed elements indicate that there is a barrier between cotyledonary body and the periphery tissues.
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