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Publication Type J
Authors Podar, D., K. Macalik, K. O. Reti, I. Martonos, E. Torok, R. Carpa, D. C. Weindorf, J. Csiszar and G. Szekely
Title Morphological, physiological and biochemical aspects of salt tolerance of halophyte Petrosimonia triandra grown in natural habitat
Source Physiology and Molecular Biology of Plants
Author Keywords Petrosimonia triandra Salinity Biomass Photosynthetic pigments Antioxidant Proline salsola-soda glutathione transferases sesuvium-portulacastrum proline biosynthesis antioxidant defense stress regulation soil-salinity plant-growth responses photosynthesis
Abstract Salt tolerance mechanisms of halophyte Petrosimonia triandra, growing in its natural habitat in Cluj County, Romania, were investigated via biomass, growth parameters, water status, ion content, photosynthetic and antioxidative system efficiency, proline accumulation and lipid degradation. Two sampling sites with different soil electrical conductivities were selected: site 1: 3.14 dS m(-1) and site 2: 4.45 dS m(-1). Higher salinity proved to have a positive effect on growth. The relative water content did not decline severely, Na+ and K+ content of the roots, stem and leaves was more, and the functions of the photosynthetic apparatus and photosynthetic pigment contents were not altered. The efficiency of the antioxidative defence system was found to be assured by coordination of several reactive oxygen species scavengers. The presence of higher salinity led to accumulation of the osmolyte proline, while degradation of membrane lipids was reduced. As a whole, P. triandra evolved different adaptational strategies to counteract soil salinity, including morphological and physiological adaptations, preservation of photosynthetic activity, development of an efficient antioxidative system and accumulation of the osmotic compound, proline.
Author Address [Podar, Dorina; Carpa, Rahela] Babes Bolyai Univ, Fac Biol & Geol, Dept Mol Biol & Biotechnol, 1 Kogalniceanu St, Cluj Napoca 400084, Romania. [Macalik, Kunigunda; Szekely, Gyongyi] Babes Bolyai Univ, Fac Biol & Geol, Hungarian Dept Biol & Ecol, 5-7 Clinicilor St, Cluj Napoca 400006, Romania. [Podar, Dorina; Szekely, Gyongyi] Babes Bolyai Univ, Ctr Syst Biol Biodivers & Bioresources, 5-7 Clinicilor St, Cluj Napoca, Romania. [Reti, Kinga-Olga; Martonos, Ildiko] Babes Bolyai Univ, Fac Environm Sci & Engn, 30 Fantanele St, Cluj Napoca 400294, Romania. [Torok, Edina] MTA Ctr Ecol Res, MTA OK Lendulet Landscape & Conservat Ecol Res Gr, 2-4 Alkotmany St, H-2163 Vacratot, Hungary. [Weindorf, David C.] Texas Tech Univ, Dept Plant & Soil Sci, Lubbock, TX 79409 USA. [Csiszar, Jolan] Univ Szeged, Fac Sci & Informat, Dept Plant Biol, 52 Kozep Fasor St, H-6726 Szeged, Hungary. [Szekely, Gyongyi] Babes Bolyai Univ, Inst Res Dev Innovat Appl Nat Sci, 30 Fantanele St, Cluj Napoca 400294, Romania. Szekely, G (reprint author), Babes Bolyai Univ, Fac Biol & Geol, Hungarian Dept Biol & Ecol, 5-7 Clinicilor St, Cluj Napoca 400006, Romania.; Szekely, G (reprint author), Babes Bolyai Univ, Ctr Syst Biol Biodivers & Bioresources, 5-7 Clinicilor St, Cluj Napoca, Romania.; Szekely, G (reprint author), Babes Bolyai Univ, Inst Res Dev Innovat Appl Nat Sci, 30 Fantanele St, Cluj Napoca 400294, Romania. gyongyi.szekely@ubbcluj.ro
ISSN 0971-5894
ISBN 0971-5894
29-Character Source Abbreviation Physiol. Mol. Biol. Plants
Publication Date Nov
Year Published 2019
Volume 25
Issue 6
Beginning Page 1335-1347
Digital Object Identifier (DOI) 10.1007/s12298-019-00697-x
Unique Article Identifier WOS:000498450900001
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