Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  Repositório Alice
País:  Brazil
Título:  The spermosphere effect: building up plant microbiome assembly.
Autores:  PÉREZ-JARAMILLO, J. E.
CARRION, V. J.
HOLLANDER, M. de
MENDES, R.
RAAIJMAKERS, J. M.
Data:  2019-01-10
Ano:  2018
Palavras-chave:  Microbiome
Tomatoes
Beans
Resumo:  Plants have a significant influence on the diversity and activity of soil microbial communities. During imbibition and germination, plant seeds release chemically diverse exudates thereby promoting microbial activity in the zone surrounding the seed, also referred to as the spermosphere. To date, little is known about the diversity and activities of microbial communities in the spermosphere and how this short-lived plant developmental stage affects microbiome assembly. Here, we deciphered the magnitude of the spermosphere effect for two different food crops, i.e. tomato and bean. More specifically, we investigated if a plant genotype-dependent influence is discernible in the spermosphere and to what extent the spermosphere microbiome relates to the rhizosphere microbiome. We selected wild and modern accessions of tomato and common bean for which strong differences in the rhizosphere microbiome were found in previous studies. Community profiling of the spermosphere revealed a decrease of ?-diversity of all crop accessions as compared to the bulk soil. Similarly, a significant difference in the ?-diversity was observed between bean accessions and bulk soil. Bacteroidetes, Firmicutes and Proteobacteria were the bacterial phyla that consistently responded to the seed germination and were significantly more abundant in the spermosphere. Albeit small, significant differences in the ?-diversity were detected between wild and modern crop accessions, suggesting a plant genotype-dependent effect already at this early developmental stage. If and how seed exudates are the main driver of the differences in spermosphere communities between the wild and modern crop accessions is currently under investigation.
Tipo:  Separatas
Idioma:  Português
Identificador:  In: CONGRESS OF EUROPEAN MICROBIOLOGISTS - FEMS, 7., 2017, Valencia, Spain. Abstract Book... Valencia: Federation of European Microbiological Society (FEMS), 2017. Ref. FEMS7-2470.

http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103544
Direitos:  openAccess
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