S. N. Batasheva

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Solutions of sodium nitroprusside, a nitric oxide donor, were introduced at various concentrations into common flax (Linum usitatissimum L.) shoots with the transpirational water flow. Sodium nitroprusside and nitrate were found to exert similar effects on incorporation of 14C into photosynthetic products, leaf cell ultrastructure, and the export of(More)
Changes in leaf mesophyll cell ultrastructure under nitrate feeding into the apoplast of common flax (Linum usitatissimum L.) in the form of 50 mM KNO3 solution were studied. In 30 min after the beginning of nitrate feeding through the transpiration water stream, swelling of mitochondrial and microbodies, clarification of their matrices, and curling of(More)
Solutions of nitrates (0.5% KNO3, 0.2% NH4NO3) or urea (0.15%) were fed under the pressure of 104 Pa to 50–60-cm-long detached shoots of common flax (Linum usitatissimum L.). One hour after the start of supplying the solutions, an assimilation clip chamber was fastened to the middle part of the shoot (14C source area), and 14CO2 was blown through in the(More)
Photosynthesis was examined in wild-type tomato plants (Lycopersicon esculentum L., cv. Moneymaker) and in the transformants where gene expression of the leaf apoplastic invertase was suppressed by RNA interference (Lin8-RNAi). The influence of genetic transformation on photosynthesis depended on the demand for assimilates by sink organs. Using growth pots(More)
The shoots of fireweed (Chamerion angustifolium (L.) Holub) and common flax (Linum usitatissimum L.) were infused with 50 mM KNO3 solution to compare the influence of nitrate on photosynthesis and assimilate export from leaves in plants with the symplastic and apoplastic phloem loading, respectively. The infusion of nitrate in the shoots of both plant(More)
The content of 14C in the products of photosynthesis of the source leaf and xylem sap was investigated in kidney bean (Phaseolus vulgaris L.) plants during the stage of mass tillering. 14C partition was measured a day after two-minute photoassimilation of 14CO2 by an individual mature leaf located in the middle part of the shoot. The source-sink relations(More)
We studied the influence of yeast invertase gene (inv), with the apoplastic localization of the enzyme, on photosynthesis of potato plants (Solanum tuberosum L., cv. Desiree) grown at various irradiances. Plants were raised in vitro, planted in soil in gauze-insulated stands, and grown at irradiances of 100, 200, and 380 W/m2 of photosynthetically active(More)
We studied assimilation of 14СО2 and distribution of 14С among the products of 3-min-long photosynthesis of maize (Zea mays L.) leaves. The day before the experiment, half of the plants were fertilized with Ca(NO3)2 (1 g/L of water) at a rate of 6 L/m2. Five days before the experiment, some plants were shaded for adaptation (illuminance was reduced by 50%).(More)
A 1 μM solution of ammoniates [ZnCu(NH3)n]2+(CO3)2− was inserted into a cut shoot of flax with the transpiration stream of water. Analysis of the 14C content after 14CO2 assimilation by the shoot showed that ammoniates increased radioactive label contents in the tissues (especially in the young leaves and stem). In the leaves the higher sucrose to hexoses(More)
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