Leaf sodium accumulation facilitates salt stress adaptation and preserves photosystem functionality in salt stressed Ocimum basilicum

S. Mancarella, F. Orsini*, M.J. van Oosten, R. Sanoubar, C. Stanghellini, S. Kondo, G. Gianquinto, A. Maggio

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)

Abstract

In this study, plant growth, water relations, ABA levels, ion accumulation patterns and chlorophyll fluorescence were functionally linked to salt stress tolerance of two basil cultivars (Napoletano and Genovese) with different stress sensitivity levels. Plants were treated with salty water at 0, 100 and 200 mM of NaCl. Potential photosynthetic efficiency, non-photochemical quenching and upregulation of photodamage protection by D1 protein revealed higher salt tolerance in Genovese plants, which also resulted in improved water balance and photosynthesis preservation. Upon stress, these plants accumulated also lower ABA and were less affected than Napoletano by salinity in terms of biomass production. Genovese plants were able to upregulate the expression of genes for ROS scavenging and cation transport. These results along with the ability of GEN plants to accumulate larger amount of Na+ in the leaf tissue indicate that this cultivar was better suited to partially use Na+ as osmoticum.

Original languageEnglish
Pages (from-to)162-173
JournalEnvironmental and Experimental Botany
Volume130
DOIs
Publication statusPublished - 2016

Keywords

  • Basil
  • Cation accumulation
  • Gene expression
  • Induction curve
  • Photosynthetic efficiency
  • Salinity

Fingerprint Dive into the research topics of 'Leaf sodium accumulation facilitates salt stress adaptation and preserves photosystem functionality in salt stressed Ocimum basilicum'. Together they form a unique fingerprint.

Cite this