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| Content Provider | Springer Nature Link |
|---|---|
| Author | Osmolovskaya, N. G. Kuchaeva, L. N. vak, V. A. |
| Copyright Year | 2007 |
| Abstract | The ionic composition in the leaves of some glycophyte plants (Phaseolus vulgaris L., Lycopersicon esculentum L., and Amaranthus cruentus L.) was studied during leaf development. Plants were grown in a stationary hydroponic culture; a growth medium contained equimolar concentrations of inorganic ions (NO 3 − , Cl$^{−}$, SO 4 2− , H$_{2}$PO 4 − , K$^{+}$, Ca$^{2+}$, Mg$^{2+}$, and Na$^{+}$) equal to 5 mg-equiv./l for each ion. In the juvenile leaf, the main ions were K$^{+}$ and water-soluble anions of organic acids represented mainly by di-and tricarboxylic acids in kidney bean and tomato and oxalic acid in amaranth. An increase in the total amount of organic anions, coinciding with the accumulation of bivalent cations, was registered in leaves of glycophytes during their development. Mature and senescing leaves of tomato and kidney bean accumulated mainly di-and tricarboxylic acid salts with the prevalence of Ca$^{2+}$ ions. In amaranth leaves, the formation of water-insoluble (acid-soluble) oxalate pool containing Ca$^{2+}$ ions (mature leaves) or Ca$^{2+}$ and Mg$^{2+}$ ions (senescing leaves) was registered. The priority role of the metabolism of organic acids in the formation of the ionic composition of glycophyte leaves during their development is discussed. It is supposed that the species-specific ionic composition of glycophyte leaves at different developmental stages is due mainly to the pattern of carbon metabolism causing the accumulation either of di-and tricarboxylic acids or oxalic acid. |
| Starting Page | 336 |
| Ending Page | 342 |
| Page Count | 7 |
| File Format | |
| ISSN | 10214437 |
| Journal | Russian Journal of Plant Physiology |
| Volume Number | 54 |
| Issue Number | 3 |
| e-ISSN | 16083407 |
| Language | English |
| Publisher | Nauka/Interperiodica |
| Publisher Date | 2007-01-01 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Phaseolus vulgaris Lycopersicon esculentum Amaranthus cruentus glycophytes leaf development ionic composition organic acids Plant Physiology Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
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