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  • Title: Quantitative analysis of herbivore-induced cytosolic calcium by using a Cameleon (YC 3.6) calcium sensor in Arabidopsis thaliana.
    Author: Verrillo F, Occhipinti A, Kanchiswamy CN, Maffei ME.
    Journal: J Plant Physiol; 2014 Jan 15; 171(2):136-9. PubMed ID: 24331428.
    Abstract:
    Ca(2+) is a key player in plant cell responses to biotic and abiotic stress. Owing to the central role of cytosolic Ca(2+) ([Ca(2+)]cyt) during early signaling and the need for precise determination of [Ca(2+)]cyt variations, we used a Cameleon YC 3.6 reporter protein expressed in Arabidopsis thaliana to quantify [Ca(2+)]cyt variations upon leaf mechanical damage (MD), herbivory by 3rd and 5th instar larvae of Spodoptera littoralis and S. littoralis oral secretions (OS) applied to MD. YC 3.6 allowed a clear distinction between MD and herbivory and discriminated between the two larvae instars. To our knowledge this is the first report of quantitative [Ca(2+)]cyt determination upon herbivory using a Cameleon calcium sensor.
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