Salt tolerance of barley induced by the root endophytePiriformospora indicais associated with a strong increase in antioxidants
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Open Access
- 25 September 2008
- journal article
- Published by Wiley in New Phytologist
- Vol. 180 (2), 501-510
- https://doi.org/10.1111/j.1469-8137.2008.02583.x
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.Keywords
This publication has 51 references indexed in Scilit:
- Double Mutants Deficient in Cytosolic and Thylakoid Ascorbate Peroxidase Reveal a Complex Mode of Interaction between Reactive Oxygen Species, Plant Development, and Response to Abiotic StressesPlant Physiology, 2007
- Sebacina vermifera Promotes the Growth and Fitness of Nicotiana attenuata by Inhibiting Ethylene SignalingPlant Physiology, 2007
- Modulation of Ethylene Responses Affects Plant Salt-Stress ResponsesPlant Physiology, 2006
- Isothermal calorimetry as a tool for estimating resistance of wild oat (Avena fatua L.) to aryloxyphenoxypropionate herbicidesThermochimica Acta, 2006
- Genes and salt tolerance: bringing them togetherNew Phytologist, 2005
- Calorimetric studies of quinoa (Chenopodium quinoa Willd.) seed germination under saline stress conditionsThermochimica Acta, 2005
- Thermotolerance and antioxidant systems in Agrostis stolonifera: Involvement of salicylic acid, abscisic acid, calcium, hydrogen peroxide, and ethyleneJournal of Plant Physiology, 2004
- REACTIVE OXYGEN SPECIES: Metabolism, Oxidative Stress, and Signal TransductionAnnual Review of Plant Biology, 2004
- Salt-induced oxidative stress in chloroplasts of pea plantsPlant Science, 1995
- Changes in Properties of Barley Leaf Mitochondria Isolated from NaCl-Treated PlantsPlant Physiology, 1990