Trichoderma atroviride enhances phenolic synthesis and cucumber protection against Rhizoctonia solani

Justyna Nawrocka, Magdalena Szczech and Urszula Małolepsza
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Justyna Nawrocka: Department of Plant Physiology and Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
Magdalena Szczech: Research Institute of Horticulture, Skierniewice, Poland
Urszula Małolepsza: Department of Plant Physiology and Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland

Plant Protection Science, 2018, vol. 54, issue 1, 17-23

Abstract: The treatment of cucumber plants with Trichoderma atroviride TRS25 (TRS25) provided protection against infection by Rhizoctonia solani. In plants inoculated with the pathogen, nontreated with Trichoderma, disease symptoms were observed on the roots, shoots, and leaves while in plants treated with TRS25 the spread of the disease was limited. The induction of systemic defence response in cucumber against R. solani infection seemed to be strongly related to the enhanced synthesis of phenolic compounds in plants. HPLC analysis indicated remarkable increases in the concentrations of 23 phenolics belonging to hydroxybenzoic acids, cinnamic acids, catechins, flavonols, flavons, and flavanons in the plants without systemic disease symptoms. We suggest that the accumulation of phenolic acids, flavonoids and de novo synthesis of catechins may strongly contribute to cucumber protection against R. solani.

Keywords: Trichoderma spp.; Rhizoctonia solani; biocontrol; defence response (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:54:y:2018:i:1:id:126-2016-pps

DOI: 10.17221/126/2016-PPS

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