Phelipanche aegyptiaca parasitism impairs salinity tolerance in young leaves of tomato

Amnon Cochavi, Jhonthan Ephrath, Hanan Eizenberg, Shimon Rachmilevitch

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The parasite Phelipanche aegyptiaca infests tomato, a crop plant that is commonly cultivated in semi-arid environments, where tomato may be subject to salt stress. Since the relationship between the two stresses —salinity and parasitism – has been poorly investigated in tomato, the effects of P. aegyptiaca parasitism on tomato growing under moderate salinity were examined. Tomatoes were grown with regular or saline water irrigation (3 and 45 mM Cl, respectively) in soils infested with P. aegyptiaca. The infested plants accumulated higher levels of sodium and chloride ions in the roots, shoots and leaves (old and young) under both salinity levels vs. non-infected plants. There was a positive linear correlation between P. aegyptiaca biomass and salt accumulation in young tomato leaves, and a negative linear correlation between parasite biomass and the osmotic potential of young tomato leaves. Concentrations of the osmoprotectants proline, myoinositol and sucrose were reduced in infected tomato plants, which impaired the host's osmotic adjustment ability. The sensitivity of P. aegyptiaca to salt stress was manifested as a decrease in biomass. In conclusion, P. aegyptiaca parasitism reduced the salt tolerance of tomato plants by promoting the accumulation of salts from the rhizosphere and impairing the host's osmotic adjustment ability.

Original languageEnglish
Pages (from-to)191-203
Number of pages13
JournalPhysiologia Plantarum
Issue number2
StatePublished - 1 Oct 2018

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science
  • Cell Biology


Dive into the research topics of 'Phelipanche aegyptiaca parasitism impairs salinity tolerance in young leaves of tomato'. Together they form a unique fingerprint.

Cite this