Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Contribution of dark septate fungi to the nutrient uptake and growth of rice plants.
Autores:  TORRES JÚNIOR, C. V.
ARAUJO, K. E. C.
ALVES, L. S.
SOUZA, S. R. de
SANTOS, L. A.
SANTA CATARINA, C.
SILVA, K. D.
DUARTE, G. M. P.
XAVIER, G. R.
ZILLI, J. E.
Data:  2017-09-05
Ano:  2017
Palavras-chave:  Oryza sativa L
Crescimento de planta
Inoculação de arroz
Fungo
Tillering
Resumo:  The use of dark septate fungi (DSE) to promote plant growth can be beneficial to agriculture, and these organisms are important allies in the search for sustainable agriculture practices. This study investigates the contribution of DSE to the absorption of nutrients by rice plants and their ensuing growth. Four DSE isolates that were identified by ITS phylogeny were inoculated in rice seeds (Cv. Piauí). The resulting root colonization was estimated and the kinetic parameters Vmax and Km were calculated from the nitrate contents of the nutrient solution. The macronutrient levels in the shoots, and the NO3?-N, NH4+-N, free amino-N and soluble sugars in the roots, sheathes and leaves were measured. The rice roots were significantly colonized by all of the fungi, but in particular, isolate A103 increased the fresh and dry biomass of the shoots and the number of tillers per plant, amino-N, and soluble sugars as well as the N, P, K, Mg and S contents in comparison with the control treatment. When inoculated with isolates A103 and A101, the plants presented lower Km values, indicating affinity increases for NO3?-N absorption. Therefore, the A103 Pleosporales fungus presented the highest potential for the promotion of rice plant growth, increasing the tillering and nutrients uptake, especially N (due to an enhanced affinity for N uptake) and P.

bitstream/item/163447/1/ZILLI-Contribution-of-dark-septate-fungi-to-the.pdf

Available online, 23 August 2017.
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  40552

http://www.alice.cnptia.embrapa.br/alice/handle/doc/1075061

https://doi.org/10.1016/j.bjm.2017.04.010
Editor:  Brazilian Journal of Microbiology, Environmental Microbiology, v. 49, n. 1, p. 67-78, jan./mar. 2018.
Relação:  Embrapa Agrobiologia - Artigo em periódico indexado (ALICE)
Fechar
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional