Light-induced wilting and its molecular mechanism in epicotyls of dark-germinated pea (Pisum sativum L.) seedlings

Plant & Cell Physiology
Noémi ErdeiBéla Böddi

Abstract

Possible mechanisms behind the light-induced wilting of dark-germinated pea (Pisum sativum L.) epicotyls were studied. Illumination with photosynthetically active radiation caused a fast turgor loss and wilting in the middle segments of the epicotyls accompanied by accumulation of water in the intercellular cavities. During this process, room temperature fluorescence emission spectra showed gradual bleaching of porphyrin-type pigments, which was lessened by incubating the epicotyls with excess ascorbate before illumination. Detection of singlet oxygen and lipid peroxidation products in the illuminated epicotyls suggested the occurrence of porphyrin-photosenzitized membrane damage as a cause of disordered water status and sequential wilting.

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Citations

Jan 17, 2013·Antioxidants & Redox Signaling·Beat B FischerAnja Krieger-Liszkay
Jul 27, 2014·Journal of Photochemistry and Photobiology. B, Biology·Andrea Kakuszi, Béla Böddi
Nov 13, 2008·Physiologia Plantarum·Anna SkribanekBéla Böddi
Aug 10, 2013·Photochemistry and Photobiology·László KovácsÉva Hideg
Dec 25, 2012·Biochimica Et Biophysica Acta·Beata Mysliwa-KurdzielKazimierz Strzałka
Mar 21, 2018·PloS One·Gracjana LeonowiczBeata Mysliwa-Kurdziel
Aug 11, 2017·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Ryo MatsuokaMakoto Yuasa
Apr 21, 2021·Nature Plants·Davide Floris, Werner Kühlbrandt
May 18, 2021·Frontiers in Plant Science·Katalin Solymosi, Beata Mysliwa-Kurdziel

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