Salt tolerance of barley induced by the root endophyte Piriformospora indica is associated with a strong increase in antioxidants

Helmut Baltruschat, J. Fodor, Borbála D. Harrach, Elzbieta Niemczyk, B. Barna, G. Gullner, Anna Janeczko, Karl Heinz Kogel, Patrick Schäfer, Ildikó Schwarczinger, Alga Zuccaro, Andrzej Skoczowski

Research output: Contribution to journalArticle

225 Citations (Scopus)

Abstract

• The root endophytic basidiomycete Piriformospora indica has been shown to increase resistance against biotic stress and tolerance to abiotic stress in many plants. • Biochemical mechanisms underlying P. indica-mediated salt tolerance were studied in barley (Hordeum vulgare) with special focus on antioxidants. Physiological markers for salt stress, such as metabolic activity, fatty acid composition, lipid peroxidation, ascorbate concentration and activities of catalase, ascorbate peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase and glutathione reductase enzymes were assessed. • Root colonization by P. indica increased plant growth and attenuated the NaCl-induced lipid peroxidation, metabolic heat efflux and fatty acid desaturation in leaves of the salt-sensitive barley cultivar Ingrid. The endophyte significantly elevated the amount of ascorbic acid and increased the activities of antioxidant enzymes in barley roots under salt stress conditions. Likewise, a sustained up-regulation of the antioxidative system was demonstrated in NaCl-treated roots of the salt-tolerant barley cultivar California Mariout, irrespective of plant colonization by P. indica. • These findings suggest that antioxidants might play a role in both inherited and endophyte-mediated plant tolerance to salinity.

Original languageEnglish
Pages (from-to)501-510
Number of pages10
JournalNew Phytologist
Volume180
Issue number2
DOIs
Publication statusPublished - Oct 2008

Fingerprint

Endophytes
Salt-Tolerance
Hordeum
endophytes
salt tolerance
Antioxidants
barley
antioxidants
Salts
salt stress
lipid peroxidation
glutathione dehydrogenase (ascorbate)
Lipid Peroxidation
salts
monodehydroascorbate reductase (NADH)
Fatty Acids
biochemical mechanisms
Ascorbate Peroxidases
cultivars
biotic stress

Keywords

  • Antioxidant enzymes
  • Ascorbic acid
  • Calorimetry
  • Ethane release
  • Fatty acid unsaturation
  • Hordeum vulgare (barley)
  • Piriformospora indica
  • Salt stress

ASJC Scopus subject areas

  • Plant Science
  • Physiology

Cite this

Salt tolerance of barley induced by the root endophyte Piriformospora indica is associated with a strong increase in antioxidants. / Baltruschat, Helmut; Fodor, J.; Harrach, Borbála D.; Niemczyk, Elzbieta; Barna, B.; Gullner, G.; Janeczko, Anna; Kogel, Karl Heinz; Schäfer, Patrick; Schwarczinger, Ildikó; Zuccaro, Alga; Skoczowski, Andrzej.

In: New Phytologist, Vol. 180, No. 2, 10.2008, p. 501-510.

Research output: Contribution to journalArticle

Baltruschat, H, Fodor, J, Harrach, BD, Niemczyk, E, Barna, B, Gullner, G, Janeczko, A, Kogel, KH, Schäfer, P, Schwarczinger, I, Zuccaro, A & Skoczowski, A 2008, 'Salt tolerance of barley induced by the root endophyte Piriformospora indica is associated with a strong increase in antioxidants', New Phytologist, vol. 180, no. 2, pp. 501-510. https://doi.org/10.1111/j.1469-8137.2008.02583.x
Baltruschat, Helmut ; Fodor, J. ; Harrach, Borbála D. ; Niemczyk, Elzbieta ; Barna, B. ; Gullner, G. ; Janeczko, Anna ; Kogel, Karl Heinz ; Schäfer, Patrick ; Schwarczinger, Ildikó ; Zuccaro, Alga ; Skoczowski, Andrzej. / Salt tolerance of barley induced by the root endophyte Piriformospora indica is associated with a strong increase in antioxidants. In: New Phytologist. 2008 ; Vol. 180, No. 2. pp. 501-510.
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