Título:	Endophytic Bacillus strains enhance pearl millet growth and nutrient uptake under low-P.
Autoria:	RIBEIRO, V. P. MARRIEL, I. E. SOUSA, S. M. de LANA, U. G. de P. MATTOS, B. B. OLIVEIRA-PAIVA, C. A. GOMES, E. A.
Afiliação:	VITÓRIA PALHARES RIBEIRO, Universidade Federal de São João del Rei IVANILDO EVODIO MARRIEL, CNPMS SYLVIA MORAIS DE SOUSA TINOCO, CNPMS UBIRACI GOMES DE PAULA LANA, CNPMS BIANCA BRAZ MATTOS, CNPS CHRISTIANE ABREU DE OLIVEIRA PAIVA, CNPMS ELIANE APARECIDA GOMES, CNPMS.
Ano de publicação:	2018
Referência:	Brazilian Journal of Microbiology, v. 49S, p. 40-46, 2018.
Conteúdo:	tBacterial endophytes are considered to have a beneficial effect on host plants, improv-ing their growth by different mechanisms. The objective of this study was to investigatethe capacity of four endophytic Bacillus strains to solubilize iron phosphate (Fe-P), pro-duce siderophores and indole-acetic acid (IAA) in vitro, and to evaluate their plant growthpromotion ability in greenhouse conditions by inoculation into pearl millet cultivated ina P-deficient soils without P fertilization, with Araxá rock phosphate or soluble triplesuperphosphate. All strains solubilized Fe-P and three of them produced carboxylate-typesiderophores and high levels of IAA in the presence of tryptophan. Positive effect of inocu-lation of some of these strains on shoot and root dry weight and the N P K content of plantscultivated in soil with no P fertilization might result from the synergistic combination ofmultiple plant growth promoting (PGP) traits. Specifically, while B1923 enhanced shoot androot dry weight and root N P content of plants cultivated with no P added, B2084 and B2088strains showed positive performance on biomass production and accumulation of N P K inthe shoot, indicating that they have higher potential to be microbial biofertilizer candidatesfor commercial applications in the absence of fertilization.
Thesagro:	Solubilização Fosfato
Digital Object Identifier:	10.1016/j.bjm.2018.06.005.
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPMS)