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Effects of exogenously-applied L-ascorbic acid on root expansive growth and viability of the border-like cells

Citation

Li, X and Makavitskaya, M and Samokhina, V and Mackievic, V and Navaselsky, I and Hryvusevich, P and Smolikova, G and Medvedev, S and Shabala, S and Yu, M and Demidchik, V, Effects of exogenously-applied L-ascorbic acid on root expansive growth and viability of the border-like cells, Plant Signaling & Behavior, 13, (9) pp. e1514895. ISSN 1559-2316 (2018) [Refereed Article]

Copyright Statement

Copyright 2018 Taylor & Francis Group, LLC

DOI: doi:10.1080/15592324.2018.1514895

Abstract

Functions of exogenous L-ascorbic acid in plant roots are poorly understood. Recent study by Makavitskaya et al. (doi.org/10.1093/jxb/ery056) has demonstrated that exogenous ascorbate can be released from roots in response to salt stress, and can trigger elevation in the cytosolic free Ca2+. Here, we report that exogenous ascorbate significantly modifies root elongation in Arabidopsis thaliana. Using a medium exchange technique, we have shown that 10-100M ascorbate induces small but significant increase in root elongation while higher levels cause its dramatic decrease. Root border cells of Pisum sativum have been losing viability twice faster in the presence of ascorbate that under control conditions, as tested by the confocal microscopy and a combined staining with propidium iodide and fluorescein diacetate.

Item Details

Item Type:Refereed Article
Keywords:ROS, Arabidopsis thaliana, ascorbic acid, root growth and development, reactive oxygen species, root border cells, calcium signalling
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Plant Physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Vegetables
UTAS Author:Shabala, S (Professor Sergey Shabala)
ID Code:130052
Year Published:2018
Web of Science® Times Cited:1
Deposited By:Agriculture and Food Systems
Deposited On:2019-01-08
Last Modified:2019-04-08
Downloads:0

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