Abstract
A monoclonal antibody was used to localize abscisic acid in Lavandula stoechas L. plants treated with 1 μM abscisic acid. ABA localization was performed using EDC as the only fixative, which preserves antigenicity and improves the specificity of monoclonal antibodies. A relationship was observed between the effect of abscisic acid on chloroplast ultrastructure and ABA accumulation. Gold particles accumulated on swollen chloroplasts. Our findings provide cytochemical evidence that the chloroplast is a trapping compartment, and yield valuable information on the relation between chloroplast ultrastructure and ABA accumulation.
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Abbreviations
- ABA:
-
abscisic acid
- BSA:
-
bovine serum albumin
- EDC:
-
1-(3-dimethyl-aminopropyl)-3 ethyl carbodiimide
- IgG:
-
immunoglobulin G
- mAB:
-
monoclonal antibodies
- pAB:
-
polyclonal antibodies
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Pastor, A., Cortadellas, N. & Alegre, L. Immunolocalization of abscisic acid by monoclonal antibodies in Lavandula stoechas L. leaves. Plant Growth Regul 16, 287–292 (1995). https://doi.org/10.1007/BF00024788
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DOI: https://doi.org/10.1007/BF00024788