Optimal Trichoderma strains for control of stem canker of brassicas: molecular basis of biocontrol properties and azole resistance
| Autor: | Delfina Popiel, Adam Dawidziuk, Małgorzata Jędryczka, Joanna Kaczmarek, Judyta Strakowska |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine biology food and beverages macromolecular substances Plant disease resistance biology.organism_classification Leptosphaeria 01 natural sciences Flusilazole Fungicide 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology chemistry Leptosphaeria maculans Animal ecology Insect Science Trichoderma Botany Phoma Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | BioControl. 61:755-768 |
| ISSN: | 1573-8248 1386-6141 |
| Popis: | Genus Trichoderma contains the most powerful agents used in biocontrol. Our study demonstrated that T. harzianum, T. hamatum and T. longibrachiatum can effectively control phytopathogenic fungi Leptosphaeria maculans and L. biglobosa. The effects of Trichoderma on pathogens’ growth (in dual cultures on agar media) and on disease severity (on seedlings in controlled conditions) were also confirmed by field experiments. Additionally, spraying with conidiospores in the autumn was helpful in reducing the incidence and severity of phoma leaf spots. It has also accelerated the degradation of plant stubble and the decomposition of pathogens’ fruiting bodies. Furthermore, all Trichoderma isolates showed higher cellulolytic activity and enhanced resistance to flusilazole treatments as compared to Leptosphaeria spp., which coincided with upregulation of 14α-sterol demethylases and an AbcG5 transporter. The effects we observed justify the use of Trichoderma to enhance the resistance of oilseed rape against pathogens, which in turn may lead to a decrease in the use of pesticides. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink