Electronic Resource
Oxford, UK; Malden, USA
:
Munksgaard International Publishers
Physiologia plantarum
122 (2004), S. 0
ISSN:
1399-3054
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
Experiments to assess the re-greening and the distribution of leaf-applied iron (Fe) within the aerial organs were developed with tobacco (Nicotiana tabacum L.) plants. Fe (III)-citrate and Fe-dimerum acid were applied to a part of the leaf and plant re-greening was monitored for 6 weeks after treatment. Fluid Fe increments associated with foliar Fe application were measured within 3 days after application. Fe distribution from the site of application within the leaf and the untreated above-ground plant parts was evaluated. Leaf fluid Fe concentration was determined by a novel procedure based on Fe chelation by desferrioxamine E and high performance liquid chromatography separation on a reversed-phase column. The ferrioxamine E method enabled accurate determination of small amounts of Fe present in leaf fluid. Foliar Fe-dimerum acid and Fe (III)-citrate treatment to chlorotic tobacco plants induced new growth re-greening. It was concluded that the applied Fe-containing compounds penetrated the leaf, were distributed within the plant and that Fe supplied as both complexes could be utilized by the plant cell.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1399-3054.2004.00405.x
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