Ecophysiological study on the salt tolerance of a pannonian endemism (Lepidium crassifolium (W. et K.)) in inland saline area

O. Mile, I. Mészáros, Sz Veres, G. Lakatos

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5 Citations (Scopus)

Abstract

In the inland saline area two structurally different sands of Lepidio-Puccinellietum limosae community can be distinguised: open stand with low plant cover (mostly by Lepidium crassifolium) and closed stand with dense plant cover (mostly by Puccinellia limosa). The open habitat can be characterised by higher salinity degree. The leaf area of L. crassifolium is significantly lower on the open stand. The high water content per unit leaf area indicates the succulent character of the species and is involved in the avoidance of high salt (Na+) concentrations in the most saline habitat. There was remarkable accumulation of proline in leaves that can act as an osmotically active compound in the citoplasm. The osmotic potential of the tissue sap follows the changes of the proline concentrations, both diurnally and with the differences of habitats. Significant midday depression of Fv/Fm was found in the open habitat due to the unfavourable soil conditions and other additional abiotic factors such as higher irradiance and temperature.

Original languageEnglish
Pages (from-to)249-250
Number of pages2
JournalActa Biologica Szegediensis
Volume46
Issue number3-4
Publication statusPublished - 2002

Fingerprint

Lepidium cartilagineum subsp. cartilagineum
Lepidium
Salt-Tolerance
salt tolerance
Ecosystem
indigenous species
Salts
Proline
ground cover plants
habitats
proline
leaf area
Water content
Salinity
Sand
osmotic pressure
sap
Tissue
Soils
soil quality

Keywords

  • Lepidium crassifolium
  • Osmotic potential
  • Proline
  • Salt tolerance
  • Sodium

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Cell Biology
  • Applied Microbiology and Biotechnology
  • Neuroscience(all)

Cite this

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abstract = "In the inland saline area two structurally different sands of Lepidio-Puccinellietum limosae community can be distinguised: open stand with low plant cover (mostly by Lepidium crassifolium) and closed stand with dense plant cover (mostly by Puccinellia limosa). The open habitat can be characterised by higher salinity degree. The leaf area of L. crassifolium is significantly lower on the open stand. The high water content per unit leaf area indicates the succulent character of the species and is involved in the avoidance of high salt (Na+) concentrations in the most saline habitat. There was remarkable accumulation of proline in leaves that can act as an osmotically active compound in the citoplasm. The osmotic potential of the tissue sap follows the changes of the proline concentrations, both diurnally and with the differences of habitats. Significant midday depression of Fv/Fm was found in the open habitat due to the unfavourable soil conditions and other additional abiotic factors such as higher irradiance and temperature.",
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AU - Mészáros, I.

AU - Veres, Sz

AU - Lakatos, G.

PY - 2002

Y1 - 2002

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AB - In the inland saline area two structurally different sands of Lepidio-Puccinellietum limosae community can be distinguised: open stand with low plant cover (mostly by Lepidium crassifolium) and closed stand with dense plant cover (mostly by Puccinellia limosa). The open habitat can be characterised by higher salinity degree. The leaf area of L. crassifolium is significantly lower on the open stand. The high water content per unit leaf area indicates the succulent character of the species and is involved in the avoidance of high salt (Na+) concentrations in the most saline habitat. There was remarkable accumulation of proline in leaves that can act as an osmotically active compound in the citoplasm. The osmotic potential of the tissue sap follows the changes of the proline concentrations, both diurnally and with the differences of habitats. Significant midday depression of Fv/Fm was found in the open habitat due to the unfavourable soil conditions and other additional abiotic factors such as higher irradiance and temperature.

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