Efeito de metabólitos produzidos por Trichoderma spp. sobre o índice mitótico em células das pontas de raízes de Allium cepa

Aguiar, Anderson Rossi de; Aguiar, Daniele C.; Tedesco, Solange Bósio; Silva, Antonio Carlos Ferreira da

doi:10.14393/bj-v31n3a2015-23292

Cited by 8 publications

(7 citation statements)

References 17 publications

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“…(Tabela 4). Dentre os fatores envolvidos na promoção do crescimento das mudas pelos isolados de Trichoderma sp., a produção de determinados metabólitos por esses fungos pode estimular a multiplicação celular vegetal, conforme reportado por Aguiar et al (2015). Os autores observaram que diferentes isolados de Trichoderma sp.…”

Section: Discussionunclassified

Promotores de crescimento na propagação de caroba

et al. 2017

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O uso de insumos biológicos capazes de promover crescimento vegetal representa uma alternativa para antecipar a comercialização de mudas florestais em condições de viveiro. A caroba (Jacaranda micrantha) é uma espécie florestal nativa da região sul do Brasil, que apresenta diversos potenciais de uso. O objetivo do trabalho foi analisar a eficiência da utilização de vermicomposto e ou isolados fúngicos do gênero Trichoderma como promotores de crescimento de mudas de J. micrantha. Foram avaliados nove tratamentos contendo diferentes percentuais de vermicomposto (0, 25 e 50%) no substrato padrão (solo peneirado e substrato comercial Carolina Soil® na proporção 1:1), na presença ou ausência de T. asperelloides e T. virens. Utilizou-se delineamento inteiramente casualizado com 18 repetições por tratamento. Aos 90 dias após a semeadura em tubetes, determinou-se: altura da parte aérea, número de folhas, diâmetro do coleto, massa seca da parte aérea e das raízes e índice de qualidade de Dickson. Efeitos significativos de promoção de crescimento foram observados com a aplicação isolada ou combinada de Trichoderma sp. e vermicomposto. A espécie T. asperelloides apresentou efeito superior a T. virens na promoção de crescimento de J. micrantha. Concluiu-se que o uso de vermicomposto e das espécies de Trichoderma sp. avaliadas promoveram o crescimento de J. micrantha, sendo que o uso combinado dos insumos biológicos promoveu incrementos mais pronunciados no crescimento.

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Section: Discussionunclassified

Promotores de crescimento na propagação de caroba

et al. 2017

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“…For young plants, the growth and establishment of roots is essential, as the increase in root biomass promotes adherence to the substrate and greater absorption of water and nutrients. These effects increase nutrients accumulation and cell multiplication through the production of hormones and other metabolites, consequently increasing the chances of survival in the field [ 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Trichoderma spp. Isolates in Cocoa Seed Treatment and Seedling Production

Sousa¹,

Brito

Felsemburgh

et al. 2021

Plants

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Isolates of Trichoderma spp., a soil fungus, has been used to control diseases and promote plant growth, reducing the use of chemicals in the production of seedlings of different plant species. We evaluated the effect of some Trichoderma spp. isolates on seed treatment and seedling production of Theobroma cacao. Five isolates from the Amazon region were tested. In laboratory, the following variables were evaluated for seed treatments: germination, germination speed index, radicle and hypocotyl lengths, and fungi incidence. In nursery, the following forms of application were tested: via seeds; in the substrate at pre-planting; monthly in post-planting substrate, and also their combination. The following was evaluated: height, diameter, number of leaves, root length, leaf area, and shoot dry mass and root system. Inoculation with Trichoderma increased the length of the radicle and hypocotyl and showed no fungi in the seeds. In seedlings, some treatments increased height and plant root dry mass. The use of Trichoderma was beneficial for seeds and appeared favorable for T. cacao production.

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“…Resende et al (2004) also verified a higher accumulation of dry matter in seedlings of corn (Zea mays) treated with T. harzianum. According to Aguiar et al (2015), the production of metabolites by fungi of the genus Trichoderma could promote seedlings growth, since they can stimulate the multiplication of plant cells, and consequently increase the biomass of the plants. Different isolates of Trichoderma sp.…”

Section: Discussionmentioning

confidence: 99%

Effect of Trichoderma spp. fungus for production of seedlings in Enterolobium Schomburgkii (Benth.) Benth

Santos¹,

Costa²,

Vieira

et al. 2019

Aust J Crop Sci

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Enterolobium schomburgkii (monkey ear) is important Amazonic forest specie, being used for wood and medicinal purposes and environmental recuperation issues. Biological treatment such as Trichoderma fungus is alternative method that may improve performance of seeds germination and provide healthy seedlings. We aimed to assess effect of Trichoderma fungus on development of E. schomburgkii seedlings. Five isolates of Trichoderma spp., in the concentration of 1.0 x 107 conidia.mL-1, were assessed and applied through four methods: seeds; pre-planting substrate; post-planting substrate; and seed + pre-planting + post-planting substrate. The seedlings were produced in polypropylene bags and kept in nursery for 10 months. The experimental design was completely randomized, in a 5x4+1 factorial scheme, with 10 repetitions. We monthly assessed the plant height, collar diameter and number of leaves and leaflets. After 10 months, we assessed root length, dry matter of aerial part and dry matter of roots system. The results showed that variables were significantly influenced by Trichoderma isolates and its application modes, either individually or under interaction, except on the root length. Eight treatments boosted the plants height and five of them increased the collar diameter, compared with the control. The height of the seedlings was the variable that mostly influenced by the treatments. Application of Trichoderma in pre-planting substrate influenced the highest number of variables analyzed. Therefore, the isolates application used in this work is feasible for production of Enterolobium schomburgkii seedlings. Based on results of this experiment we do not recommended treatment of Enterolobium schomburgkii seeds with Trichoderma isolates, except using T. asperellum T09

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Efeito de metabólitos produzidos por Trichoderma spp. sobre o índice mitótico em células das pontas de raízes de Allium cepa

Cited by 8 publications

References 17 publications

Promotores de crescimento na propagação de caroba

Promotores de crescimento na propagação de caroba

Evaluation of Trichoderma spp. Isolates in Cocoa Seed Treatment and Seedling Production

Effect of Trichoderma spp. fungus for production of seedlings in Enterolobium Schomburgkii (Benth.) Benth

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