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Publication Type J
Authors Misic, D; Siler, B; Zivkovic, JN; Simonovic, A; Maksimovic, V; Budimir, S; Janosevic, D; Durickovic, M; Nikolic, M
Author Full Name Misic, Danijela; Siler, Branislav; Zivkovic, Jasmina Nestorovic; Simonovic, Ana; Maksimovic, Vuk; Budimir, Snezana; Janosevic, Dusica; Durickovic, Milutin; Nikolic, Miroslav
Title Contribution of inorganic cations and organic compounds to osmotic adjustment in root cultures of two Centaurium species differing in tolerance to salt stress
Source PLANT CELL TISSUE AND ORGAN CULTURE
Language English
Document Type Article
Author Keywords Root cultures; Osmotic adjustment; Salt tolerance; Inorganic cations; Compatible solutes
Keywords Plus SALINITY TOLERANCE; IN-VITRO; TISSUE-CULTURES; CALLUS-CULTURES; WATER-DEFICIT; ABSCISIC-ACID; NACL STRESS; AMINO-ACIDS; PLANTS; ACCUMULATION
Abstract The effect of reduced availability of sugars on growth and essential metabolic processes in roots, resulting from decreased photosynthesis under salinity, was excluded by establishing a non-photosynthetic model-system in this study: root cultures of Centaurium maritimum (L.) Fritch and Centaurium spicatum (L.) Fritch. The contribution of inorganic cations and organic compounds (e. g. carbohydrates and amino acids) to the osmotic adjustment (OA) in roots during short-term exposure to various salt concentrations (0, 50, 100 or 200 mM NaCl) was emphasized. Observed morphological and histological changes in roots were species specific, and were dependent on salinity level. Although C. spicatum appears to be more tolerant to salt stress, both species employed similar strategies in response to elevated salinity to different extents, and displayed effective OA mechanisms. Under low and moderate salinity, inorganic cations were the major contributors to OA in roots of both species, followed by soluble sugars, while the relative contribution of proline (Pro) and free amino acids was insignificant. Osmotic adjustment under severe stress appears to be mediated by increased accumulation of organic compounds. The analysis of the intraspecies variability in salt response of C. spicatum and C. maritimum roots enabled the identification of some organic compounds which could be used as potential biochemical markers in screening for salt tolerance, including Pro in C. spicatum, and trehalose and polyols in C. maritimum.
Author Address [Misic, Danijela; Siler, Branislav; Zivkovic, Jasmina Nestorovic; Simonovic, Ana; Budimir, Snezana; Durickovic, Milutin] Univ Belgrade, Inst Biol Res Sinisa Stankovic, Belgrade 11060, Serbia; [Maksimovic, Vuk; Nikolic, Miroslav] Univ Belgrade, Inst Multidisciplinary Res, Belgrade 11030, Serbia; [Budimir, Snezana; Janosevic, Dusica] Univ Belgrade, Fac Biol, Inst Bot, Belgrade 11000, Serbia
Reprint Address Misic, D (reprint author), Univ Belgrade, Inst Biol Res Sinisa Stankovic, Bulevar Despota Stefana 142, Belgrade 11060, Serbia.
E-mail Address dmisic@ibiss.bg.ac.rs
ResearcherID Number Siler, Branislav/F-8132-2011; Nikolic, Miroslav/H-8657-2014
ORCID Number Siler, Branislav/0000-0001-5831-6612; Nikolic, Miroslav/0000-0001-9643-138X; Maksimovic, Vuk/0000-0002-9883-186X
Funding Agency and Grant Number Serbian Ministry of Education and Science [173024, 173040, 173028]
Funding Text This work is financially supported by the Serbian Ministry of Education and Science (grants 173024, 173040, and 173028). We dedicate this work to our dear colleague, Professor Dr. Dragoljub Grubisic, whom we wish to remember with affection.
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Cited Reference Count 48
Times Cited 10
Total Times Cited Count (WoS, BCI, and CSCD) 13
Publisher SPRINGER
Publisher City DORDRECHT
Publisher Address VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN 0167-6857
29-Character Source Abbreviation PLANT CELL TISS ORG
ISO Source Abbreviation Plant Cell Tissue Organ Cult.
Publication Date MAR
Year Published 2012
Volume 108
Issue 3
Beginning Page 389
Ending Page 400
Digital Object Identifier (DOI) 10.1007/s11240-011-0050-4
Page Count 12
Web of Science Category Biotechnology & Applied Microbiology; Plant Sciences
Subject Category Biotechnology & Applied Microbiology; Plant Sciences
Document Delivery Number 909XW
Unique Article Identifier WOS:000301601600004
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