Unveiling the dual role of heterotrophic ammonia-oxidizing bacteria: enhancing plant regrowth through modulating cytokinin delivery.

ABSTRACT: This study aims to investigate the dual impacts of heterotrophic ammonia-oxidizing bacteria (HAOB) strains on the regrowth of Italian ryegrass by studying cytokinin delivery from roots to leaves. The dual impacts encompass both the "soil-inside-role" and "soil-outside-role," which refer to the HAOB operating inside and outside the rhizosphere soil within the rhizosphere microenvironment. The experimental design consisted of two sets of experiments, Exp-1 and Exp-2, involving different treatments. In Exp-1, various concentrations of NO₃^- were added to the roots to observe the soil-inside-role on cytokinin delivery from roots to leaves. In Exp-2, NO₃^- addition was combined with HAOB inoculation to observe the combined effects of the root-outside-ro

SUBMITTER: Wang XL 

PROVIDER: S-EPMC10557131 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature