Triple combinations with PGPB stimulate plant growth in micropropagated banana plantlets

被引：11

作者：

Souza, Gleika L. O. D. ^{[1
]}

Nietsche, Silvia ^{[1
]}

Xavier, Adelica A. ^{[1
]}

Costa, Marcia R. ^{[2
]}

Pereira, Marlon C. T. ^{[1
]}

Santos, Marcio A. ^{[1
]}

机构：

[1] Univ Estadual Montes Claros, Dept Ciencias Agr, Lab Biotecnol, Ave Reinaldo Viana 2630,Caixa Postal 91, BR-39440000 Janauba, MG, Brazil

[2] Univ Fed Vales Jequitinhonha & Mucuri, Campus Unai, BR-38610000 Unai, MG, Brazil

来源：

APPLIED SOIL ECOLOGY | 2016年 / 103卷

关键词：

Musa spp; Plant growth promoting bacteria; Bacillus sp; Endophytic bacteria; NITROGEN-FIXATION; NUTRIENT-UPTAKE; RHIZOBACTERIA; BACTERIA; INOCULATION; DIVERSITY; ROOTS; YIELD; RICE; SPP;

D O I：

10.1016/j.apsoil.2016.03.001

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Twenty different triple combinations of plant growth promoting bacteria (PGPB) were tested on the micropropagated banana plantlet cultivar Prata Ana in terms of growth and nutrient uptake. The experiment was arranged in a randomized design with 22 treatments (20 triple bacteria combinations and two controls) and three replicates. The maximum increments observed for pseudostem height and pseudostem girth were 42.0% and 34.5%, respectively. For aerial dry weight, five triple combinations of PGPB (treatments 6, 8, 9, 10 and 11) presented superior averages compared to control 1 (no bacteria inoculation). The combination of a Bacillus sp., repeated twice, plus a Lysinibacillus sp. (EB40 + EB53) provided an increase of 174% in the root dry weight. The triple combinations with PGPB also promoted significant differences in the total accumulation in aerial dry weight for all of the analyzed macroelements. Increases in the total accumulation of microelements under triple inoculation were observed for B, Fe and Mn. These results revealed that B. subtilis (EB-40), Bacillus pumilus (EB-51), Lysinibacillus sp. (EB-53), Paenibacillus sp. (EB-144) and Bacillus sp. (EB-194) have the potential to be exploited as inoculants to improve the plant growth of banana plantlets. Moreover, these selected species can be applied to increase soil microbial diversity, as well as soil quality and soil health. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：31 / 35

页数：5

共 30 条

[1] Analysis of the abilities of endophytic bacteria associated with banana tree roots to promote plant growth [J].