Data/hora: 04/06/2024 09:59:45

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 10/11/2022
Data da última atualização: | 10/11/2022
Autoria: | SILVA, L. G.; CAMARGO, R. C.; MASCARIN, G. M.; NUNES, P. S. de O.; DUNLAP, C.; BETTIOL, W.
Afiliação: | LUCAS GUEDES SILVA, UNIVERSIDADE ESTADUAL PAULISTA; RENATO CINTRA CAMARGO; GABRIEL MOURA MASCARIN, CNPMA; PETERSON SYLVIO DE OLIVEIRA NUNES, UNIVERSIDADE FEDERAL DE LAVRAS; CHRISTOPHER DUNLAP, UNITED STATES DEPARTMENT OF AGRICULTURE; WAGNER BETTIOL, CNPMA.
Título: | Dual functionality of Trichoderma: biocontrol of Sclerotinia sclerotiorum and biostimulant of cotton plants.
Ano de publicação: | 2022
Fonte/Imprenta: | Frontiers in Plant Science, v. 13, artcile 983127, 2022.
ISSN: | 1664-462X
DOI: | https://doi.org/10.3389/fpls.2022.983127
Idioma: | Inglês
Conteúdo: | Abstract: Microbial crop protection products based on Trichoderma have the ability to display multifunctional roles in plant protection, such as pathogen parasitism, enhance nutrient availability and stimulate plant growth, and these traits can be used to enhance the overall agronomic performance of a variety of crops. In the current study, we explored the multifunctional potential of two indigenous Brazilian strains of Trichoderma (T. asperelloides CMAA 1584 and T. lentiforme CMAA 1585) for their capability of controlling Sclerotinia sclerotiorum, a key plant pathogen of cotton, and for their ability of growth promotion in cotton plants (Gossypium hirsutum). Both strains were able to solubilize mineral phosphorus (CaHPO<sub>4</sub>), to release volatile organic compounds that impaired the mycelial growth of S. sclerotiorum, and to promote the growth of cotton plants under greenhouse conditions. In dual culture, Trichoderma strains reduced the growth rate and the number of sclerotia formed by S. sclerotiorum. By treating sclerotia with conidial suspensions of these Trichoderma strains, a strong inhibition of the myceliogenic germination was observed, as a result of the marked mycoparasitic activity exerted on the sclerotia. The parasitism over S. sclerotiorum was more effective with T. asperelloides CMAA 1584, whilst the biostimulant effects on cotton growth were more pronounced with T. lentiforme CMAA 1585, which also showed a higher capacity of phosphate solubilization. Thus, T. asperelloides CMAA 1584 displays higher efficiency in controlling S. sclerotiorum, while T. lentiforme CMAA 1585 is more suitable as a biostimulant due to its ability to promote growth in cotton plants. Overall, these Trichoderma strains may be used in mixture to provide both pathogen control and promotion of plant growth, and this strategy will support growers in minimizing the use of synthetic fertilizers and fungicides against white mold in cotton crops.
Thesagro: | Algodão; Biofertilizante; Controle Biológico; Fungo Para Controle Biológico; Mofo Branco; Trichoderma.
Thesaurus Nal: | Biofertilizers; Biological control agents; Growth promotion; Molds (fungi); Plant growth.
Categoria do assunto: | H Saúde e Patologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148169/1/Mascarin-Dual-functionality-2022.pdf
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (17245-1) - UPC - AP - DD -  -  -  - DIS