Journal
JOURNAL OF PLANT PHYSIOLOGY
Volume 171, Issue 2, Pages 136-139Publisher
ELSEVIER GMBH
DOI: 10.1016/j.jplph.2013.09.020
Keywords
Arabidopsis thaliana; Spodoptera littoralis; Cameleon YC 3.6; Calcium signaling; Herbivory
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Ca2+ is a key player in plant cell responses to biotic and abiotic stress. Owing to the central role of cytosolic Ca2+ ([Ca2+](cyt)) during early signaling and the need for precise determination of [Ca2+](cyt) variations, we used a Cameleon YC 3.6 reporter protein expressed in Arabidopsis thaliana to quantify [Ca2+](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 [Ca2+](cyt) determination upon herbivory using a Cameleon calcium sensor. (C) 2013 Elsevier GmbH. All rights reserved.
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