Native Trichoderma harzianum strains from Argentina produce indole-3 acetic acid and phosphorus solubilization, promote growth and control wilt disease on tomato (Solanum lycopersicum L.)
| Autor: | Fernanda Covacevich, Graciela L. Salerno, Verónica Fabiana Consolo, Araceli Natalia Bader |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Biotecnología del Medio Ambiente
02 engineering and technology INGENIERÍAS Y TECNOLOGÍAS 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Otras Biotecnología del Medio Ambiente lcsh:Science (General) 0105 earth and related environmental sciences Wilt disease Multidisciplinary purl.org/becyt/ford/2.8 [https] biology fungi food and beverages Trichoderma harzianum PHYTOHORMONE Pathogenic fungus 021001 nanoscience & nanotechnology biology.organism_classification Fusarium wilt PLANT GROWTH PROMOTION Horticulture purl.org/becyt/ford/2 [https] chemistry PHOSPHATE SOLUBILIZING FUNGI Trichoderma Shoot TOMATO TRICHODERMA Solanum 0210 nano-technology Indole-3-acetic acid lcsh:Q1-390 BIOLOGICAL CONTROL |
| Zdroj: | Journal of King Saud University: Science, Vol 32, Iss 1, Pp 867-873 (2020) CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| Popis: | Trichoderma fungi are considered as suitable biofertilizers, since they could increase the efficiency of the use of nutrients in plants and are used as biocontrol agents against plant pathogen. The aim of this study was to characterize a set of Trichoderma strains isolated from horticultural and near-pristine soils from the Argentine Pampas, and to evaluate their potentiality as a growth promoter and as a biocontroller of Fusarium wilt disease on tomato. Nineteen collected strains, identified as T. brevicompactum, T. gamsii and T. harzianum, were tested for their ability to produce the auxin indole 3-acetic acid (IAA), solubilize phosphate and biocontrol F. oxysporum. Twelve strains reduced growth of pathogenic fungus over 50% and four of them (named FCCT 16, FCCT 58, FCCT 199-2 and FCCT 363-2) exhibited IAA highest production (ranging 13.38–21.14 µg/ml) and were able to solubilize phosphate (ranging 215.80–288.18 µg/ml of calcium phosphate). Tomato plants inoculated with those four strains increased chlorophyll content, shoot length, fresh and dry weight of shoot and roots, and reduced F. oxysporum wilt disease between 10 and 30%. On the basis of our results, we conclude that soils of the Argentine Pampas harbor Trichoderma strains with beneficial dual effects which could be of interest for the development of commercial products. Fil: Bader, Araceli Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; Argentina Fil: Salerno, Graciela Lidia. Fundación para Investigaciones Biológicas Aplicadas; Argentina Fil: Covacevich, Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; Argentina Fil: Consolo, Verónica Fabiana. Fundación para Investigaciones Biológicas Aplicadas; Argentina |
| Databáze: | OpenAIRE |
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