Aluminium pre-treatment induces activation of defense responses against Fusarium infection in Triticum aestivum

Aluminium pre-treatment induces activation of defense responses against Fusarium infection in... Pre-treatment with low dose of aluminium sulphate [Al2(SO4)3] was assayed on wheat (Triticum aestivum L.) seedlings for its ability to induce resistance against Fusarium oxysporum infection. Pre-treatment of seven days old germinated wheat seedlings with 50 μM concentration of Al2(SO4)3 reduced the severity of the disease. In Al2(SO4)3 pre-treated seedlings inoculated with fungus reduction in disease severity was correlated with suppression of fungal mycelia development inside the leaf tissues. The activities of peroxidase, polyphenol oxidase, and phenylalanine ammonia lyase were determined as resistance markers. F. oxysporum inoculation induced significant increase of all these enzymes. Such responses were expressed earlier and with much higher magnitude when Al2(SO4)3 pre-treated seedlings were challenged with the pathogen. Slower disease development in Al2(SO4)3 pre-treated seedlings might be due to increased deposition of total phenolic compounds and enhanced level of salicylic acid which restricts pathogen entry. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Aluminium pre-treatment induces activation of defense responses against Fusarium infection in Triticum aestivum

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Publisher
Pleiades Publishing
Copyright
Copyright © 2016 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443716040038
Publisher site
See Article on Publisher Site

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