Anatomical changes induced by isolates of Trichoderma spp. in soybean plants.

Autor: Oliveira CM; Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Goiás, Goiânia, Goiás, Brazil., Almeida NO; Escola de Agronomia, Universidade Federal de Goiás, Goiânia, Goiás, Brazil., da Rocha MR; Escola de Agronomia, Universidade Federal de Goiás, Goiânia, Goiás, Brazil., Rezende MH; Departamento de Botânica, Universidade Federal de Goiás, Goiânia, Goiás, Brazil., Carneiro RGDS; Departamento de Botânica, Universidade Federal de Goiás, Goiânia, Goiás, Brazil., Ulhoa CJ; Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2020 Nov 16; Vol. 15 (11), pp. e0242480. Date of Electronic Publication: 2020 Nov 16 (Print Publication: 2020).
DOI: 10.1371/journal.pone.0242480
Abstrakt: In the current work we evaluated the anatomical changes induced by T. harzianum and T. asperellum in two soybean cultivars, BRSGO Caiaponia and NA 5909 RG. Soybean production represents a growing market worldwide, and new methods aimed at increasing its productivity and yield are constantly being sought. Fungi of the genus Trichoderma have been widely used in agriculture as a promising alternative for the promotion of plant growth and for biological control of various pathogens. It is known that Trichoderma spp. colonize plant roots, but the anatomical changes that this fungus can cause are still less studied. Experiment was conducted in a greenhouse to collect leaves and soybean roots to perform analysis of growth parameters, enzymatic activity of defense-related enzymes and anatomical changes. It was observed that inoculation of Trichoderma spp. caused anatomical alterations, among them, increase in stomatal index at the abaxial leaf surface, thickness of the root cortex, thickness of adaxial epidermis, mean diameter of the vascular cylinder, thickness of the mesophyll, and thickness of the spongy parenchyma of the soybean plants. These results indicate that the alterations in these factors may be related to the process of plant resistance to pathogens, and better performance against adverse conditions. This study demonstrates that the anatomical study of plants is an important tool to show the effects that are induced by biological control agents.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Databáze: MEDLINE
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