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Monitoring Cell Death Via Ion Leakage and PAM Fluorometry

Part of the Methods in Molecular Biology book series (MIMB,volume 2447)


Cell death in plants plays a major role during development as well as in response to certain biotic and abiotic stresses. For example, plant cell death can be triggered in a tightly regulated way during the hypersensitive response (HR) in defense against pathogens or be elicited by pathogenic toxin deployment. Monitoring cell death and its impact on plant health can aid in the quantification of plant disease symptoms and help to identify the underlying molecular pathways. Here, we describe our current protocol for monitoring plant cell death via ion leakage and Pulse-Amplitude-Modulation (PAM) fluorometry. We further provide a detailed protocol for the sample preparation, the measurement, and the data evaluation and discuss the complementary nature of ion leakage and PAM fluorometry as well as the potential of PAM fluorometry for high-throughput screenings.

Key words

  • Plant cell death
  • ION leakage
  • Pulse-Amplitude-Modulation (PAM) fluorometry
  • Pathogen treatment
  • Chemical treatment
  • Large-scale screening

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  • DOI: 10.1007/978-1-0716-2079-3_14
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The authors thank Prof. Pitter Huesgen and Dr. Gregor Langen for editing the draft. We acknowledge the support by the Cluster of Excellence on Plant Sciences (CEPLAS), the Max-Planck-Gesellschaft through the International Max Planck Research School (IMPRS) on “Understanding Complex Plant Traits using Computational and Evolutionary Approaches” and the University of Cologne. The research was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC 2048/1–25 Project ID: 390686111 as well as the projects ZU 263/11-1 (SPP DECRyPT) and–SFB-1403–414786233 (SFB cell death and immunity).

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Correspondence to Alga Zuccaro .

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Dunken, N., Mahdi, L., Häusler, R.E., Zuccaro, A. (2022). Monitoring Cell Death Via Ion Leakage and PAM Fluorometry. In: Klemenčič, M., Stael, S., Huesgen, P.F. (eds) Plant Proteases and Plant Cell Death. Methods in Molecular Biology, vol 2447. Humana, New York, NY.

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  • Print ISBN: 978-1-0716-2078-6

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