Morphological, physiological and biochemical aspects of salt tolerance of halophyte Petrosimonia triandra grown in natural habitat

Dorina Podar, Kunigunda Macalik, Kinga Olga Réti, Ildikó Martonos, Edina Török, Rahela Carpa, David C. Weindorf, Jolán Csiszár, Gyöngyi Székely

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)1335-1347
Number of pages13
JournalPhysiology and Molecular Biology of Plants
Volume25
Issue number6
DOIs
Publication statusPublished - Nov 1 2019

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Salt-Tolerance
Salinity
salt tolerance
Proline
Ecosystem
proline
Soil
habitats
salinity
Physiological Adaptation
Romania
Electric Conductivity
degradation
Water
soil salinity
Membrane Lipids
lipids
Growth
Biomass
electrical conductivity

Keywords

  • Antioxidant
  • Biomass
  • Petrosimonia triandra
  • Photosynthetic pigments
  • Proline
  • Salinity

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Plant Science

Cite this

Morphological, physiological and biochemical aspects of salt tolerance of halophyte Petrosimonia triandra grown in natural habitat. / Podar, Dorina; Macalik, Kunigunda; Réti, Kinga Olga; Martonos, Ildikó; Török, Edina; Carpa, Rahela; Weindorf, David C.; Csiszár, Jolán; Székely, Gyöngyi.

In: Physiology and Molecular Biology of Plants, Vol. 25, No. 6, 01.11.2019, p. 1335-1347.

Research output: Contribution to journalArticle

Podar, Dorina ; Macalik, Kunigunda ; Réti, Kinga Olga ; Martonos, Ildikó ; Török, Edina ; Carpa, Rahela ; Weindorf, David C. ; Csiszár, Jolán ; Székely, Gyöngyi. / Morphological, physiological and biochemical aspects of salt tolerance of halophyte Petrosimonia triandra grown in natural habitat. In: Physiology and Molecular Biology of Plants. 2019 ; Vol. 25, No. 6. pp. 1335-1347.
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