Data/hora: 08/06/2024 06:01:54

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 17/11/2020
Data da última atualização: | 07/05/2021
Autoria: | OLIVEIRA, I. F. de; SIMEONE, M. L. F.; GUIMARAES, C. de C.; GARCIA, N. S.; SCHAFFERT, R. E.; SOUSA, S. M. de.
Afiliação: | Isabela Figueiredo de Oliveira, Universidade Federal de São João del-Rei; MARIA LUCIA FERREIRA SIMEONE, CNPMS; CRISTIANE DE CARVALHO GUIMARAES, CNPMS; Nathally Stefany Garcia, Universidade Federal de São João del-Rei; ROBERT EUGENE SCHAFFERT, CNPMS; SYLVIA MORAIS DE SOUSA TINOCO, CNPMS.
Título: | Sorgoleone concentration influences mycorrhizal colonization in sorghum.
Ano de publicação: | 2021
Fonte/Imprenta: | Mycorrhiza, v. 31, p. 259-264, 2021.
DOI: | https://doi.org/10.1007/s00572-020-01006-1
Idioma: | Inglês
Conteúdo: | The association between arbuscular mycorrhizal fungi (AMF) and sorghum, the ffth most cultivated cereal in the world and a staple food for many countries, is relevant to improving phosphorus (P) absorption. The importance of root exudation as a signal for the symbiosis has been shown for several species, but a complete understanding of the signaling molecules involved in the mycorrhizal symbiosis signaling pathway has not yet been elucidated. In this context, we investigated the efect of sorgoleone, one of the most studied allelochemicals and a predominant compound of root exudates in sorghum, on AMF colonization and consequently P uptake and plant growth on a sorghum genotype. The sorghum genotype P9401 presents low endogenous sorgoleone content, and when it was inoculated with Rhizophagus clarus together with 5 and 10 µM sorgoleone, mycorrhizal colonization was enhanced. A signifcant enhancement of mycorrhizal colonization and an increase of P content and biomass were observed when R. clarus was inoculated together with 20 µM sorgoleone. Thus, our results indicate that sorgoleone infuences mycorrhizal colonization, but the mechanisms by which it does so still need to be revealed
Thesagro: | Genótipo; Micorriza; Sorghum Bicolor; Sorgo.
Categoria do assunto: | S Ciências Biológicas
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (29444-1) - UPC - AP - DD -  -  -  - DIS