Data/hora: 04/06/2024 15:02:50

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 11/12/2020
Data da última atualização: | 12/04/2021
Autoria: | VASCONCELLOS, R. L. de F.; ROMAGNOLI, E. M.; TAKETANI, R. G.; SANTOS, S. N.; ZUCCHI, T. D.; MELO, I. S. de.
Afiliação: | RAFAEL LEANDRO DE FIGUEIREDO VASCONCELLOS, ESALQ-USP; EMILIANA MANESCO ROMAGNOLI; RODRIGO GOUVEA TAKETANI; SUIKINAI NOBRE SANTOS; TIAGO DOMINGUES ZUCCHI, Gênica Inovação Biotecnológica; ITAMAR SOARES DE MELO, CNPMA.
Título: | Impact of inoculation with Pseudomonas aestus CMAA 1215T on the non-target resident bacterial community in a saline rhizosphere soil.
Ano de publicação: | 2020
Fonte/Imprenta: | Current Microbiology, v. 78, n. 1, p. 218-228, 2020.
ISSN: | 1573-2959
DOI: | https://doi.org/10.1007/s00284-020-02285-9
Idioma: | Inglês
Conteúdo: | Abstract: Plant growth reduction caused by osmotic stress, pathogens, and nutrient scarcity can be overcome by inoculation with plant growth-promoting rhizobacteria (PGPR). Knowing the effects of PGPR on the microbial community beyond those on plant growth can bring new options of soil microbiota management. The present study aimed to investigate the effect of inoculation with the newly described Pseudomonas aestus CMAA 1215T [a 1-aminocyclopropane-1-carboxylate (ACC) deaminase and glycine-betaine producer] on the rhizosphere bacterial community of Zea mays in natural (non-salinized) and saline soil. The bacterial community structure was assessed by sequencing the V6-V7 16S ribosomal RNA using the Ion Personal Genome Machine. The non-metric multidimensional scaling (NMDS) of the OTU profile (ANOSIM P < 0.01) distinguishes all the treatments (with and without inoculation under saline and natural soils). Inoculated samples shared 1234 OTUs with non-inoculated soil. The most abundant classes in all samples were Alphaproteobacteria, Gammaproteobacteria, Actinobacteria, Acidobacteriia, Bacteroidia, Thermoleophilia, Verrucomicrobiae, Ktenodobacteria, and Bacilli. The inoculation, on the other hand, caused an increase in the abundance of the genera Bacillus, Bryobacter, Bradyrhizobium, "Candidatus Xiphinematobacter", and "Candidatus Udaeobacter" independent of soil salinization. "Candidatus Udaeobacter" has the largest Mean Decrease in Gini Values with higher abundance on inoculated salted soil. In addition, Pseudomonas inoculation reduced the abundance of Gammaproteobacteria and Phycisphaerae. Understanding how inoculation modifies the bacterial community is essential to manage the rhizospheric microbiome to create a multi-inoculant approach and to understand its effects on ecological function.
Thesagro: | Bactéria; Estimulante de Crescimento Vegetal; Pseudomonas sp; Rizosfera; Solo Salino.
Thesaurus Nal: | Bacterial communities; Plant growth-promoting rhizobacteria; Saline soils.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (16877-1) - UPC - AP - DD -  -  -  - DIS