Excess copper in soil as a factor affecting bacterial spots caused by <Emphasis Type="Italic">Xanthomonas vesicatoria</Emphasis> in tomato plants; bio-interaction between two stress factors and their influence on plants |
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Authors: | Svetla Maneva Nevena Bogatzevska Ekaterina Miteva |
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Institution: | (1) Plant Protection Institute, 2230 Kostinbrod, Bulgaria |
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Abstract: | The investigations presented in this paper focus on studying the influence of excess soil copper levels in young tomato plants
and their relationship to bacterial spot severity caused by Xanthomonas vesicatoria race T3. The plants were grown under greenhouse conditions in pots containing soil artificially contaminated with copper
in concentrations of 250 and 400 mg kg−1. Both stress factors were applied individually and in combination. Soil copper levels did influence bacterial spot severity.
The copper doses applied restricted bacterial spot growth. Strongest responses were observed when the pathogen was infiltrated
into seeds. Deformations of plant, as well as increased plastid synthesis inhibition occurred when the plants were exposed
to copper and X. vesicatoria. The applicability of the investigation is related to the fight against bacterial spot caused by X. vesicatoria in tomatoes grown on copper-polluted soils. In this case, the remedial action should be carried out very carefully in order
to avoid additional damage to plants. |
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Keywords: | Copper Copper toxicity Bacterial spot Plant morphology Chloroplast pigments Stress |
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