Metagenomic Analysis to Assess the Impact of Plant Growth-Promoting Rhizobacteria on Peanut (Arachis hypogaea L.) Crop Production and Soil Enzymes and Microbial Diversity

被引：1
|
作者：
Bigatton, Ezequiel D. [1 ,2 ,3 ]
Verdenelli, Romina A. [4 ]
Haro, Ricardo J. [5 ]
Ayoub, Ibrahim [1 ,2 ]
Barbero, Florencia M. [4 ]
Martin, Maria Paula [1 ]
Dubini, Lucas E. [1 ]
Novo, Jesus V. Jorrin [3 ]
Lucini, Enrique I. [1 ]
Castillejo, Maria Angeles [3 ]
机构：
[1] Univ Nacl Cordoba, Fac Ciencias Agr Microbiol Agr, X5000, Cordoba, Argentina
[2] Consejo Nacl Invest Cientif & Tecn CONICET, X5016, Cordoba, Argentina
[3] Univ Cordoba, Dept Bioquim & Biol Mol, AGR Bioquim Proteom & Biol Sistemas Vegetal & Agro, ETSIAM, Cordoba 14071, Andalucia, Spain
[4] UNC, Inst Multidisciplinario Biol Vegetal IMBIV CONICET, Inst Ciencia & Tecnol Alimentos FCEFyN, X5016, Cordoba, Argentina
[5] Inst Nacl Tecnol Agr INTA, Estac Expt Agr INTA Manfredi, X5988, Manfredi, Argentina
来源：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2024年 / 72卷 / 40期
关键词：
Bacillus; Pseudomonas; crop yield; soil metagenome; soil enzymes; FDA; DHA; RADIATION USE EFFICIENCY; YIELD; INDEX; PGPR;
D O I：
10.1021/acs.jafc.4c05687
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
Peanut production could be increased through plant growth-promoting rhizobacteria (PGPR). In this regard, the present field research aimed at elucidating the impact of PGPR on peanut yield, soil enzyme activity, microbial diversity, and structure. Three PGPR strains (Bacillus velezensis, RI3; Bacillus velezensis, SC6; Pseudomonas psychrophila, P10) were evaluated, along with Bradyrhizobium japonicum (BJ), taken as a control. PGPR increased seed yield by 8%, improving the radiation use efficiency (4-14%). PGPR modified soil enzymes (fluorescein diacetate activity by 17% and dehydrogenase activity by 28%) and microbial abundance (12%). However, PGPR did not significantly alter microbial diversity; nonetheless, it modified the relative abundance of key phyla (Actinobacteria > Proteobacteria > Firmicutes) and genera (Bacillus > Arthrobacter > Pseudomonas). PGPRs modified the relative abundance of genes associated with N-fixation and nitrification while increasing genes related to N-assimilation and N-availability. PGPR improved agronomic traits without altering rhizosphere diversity.
引用
收藏
页码：22385 / 22397
页数：13
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