Drought stress tolerance and metabolomics of induced by DGL1.

Introduction: This study used DGL1 isolated from the arid sandy land of the Qinghai-Tibetan Plateau as the research strain and investigated the effects of DGL1 on the biomass, physiology, and metabolites of under different intensities of drought stress to provide a high-quality bacterial source and a theoretical basis for the research and development of biological fertilizer suitable for arid areas.

Methods: The exopolysaccharides (EPS), 1-Aminocyclopropane-1-carboxylate deaminase (ACC), and phosphorus solubilizing capacity of DGL1 were determined. The effects of a DGL1 suspension on alfalfa biomass, physiological indexes, degree of peroxidation of cell membranes, and activity of antioxidant enzymes were determined after irrigating roots under drought stress.

Transcriptomic analysis of the response of to DGL1.

Introduction: DGL1, isolated from the arid sandy areas in Dagler, Qinghai Province, China, promotes the growth of variety "Qing Yan 1".

Methods: To elucidate the transcriptomic changes in the oat root system following interaction with DGL1 and to reveal the molecular mechanism by which DGL1 promotes oat growth, treatment and control groups of oat roots at 2, 4, 8, and 12 h after inoculation with a suspension of strain DGL1 were analyzed using Illumina high-throughput transcriptome sequencing technology. The differentially expressed genes were determined through Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses, and the metabolic pathways and key genes were analyzed.

Physiological, biochemical and phytohormone responses of to -pinene-induced allelopathy.

The -pinene is the main allelochemical of many weeds that inhibit the growth of , an important forage and ecological restoration herbage. However, the response changes of -pinene-induced allelopathy to is still unclear. Here, we investigated the physiological, biochemical and phytohormone changes of exposed to different -pinene concentrations.

Comprehensive evaluation of the allelopathic potential of .

has been widely planted together with other perennial grasses for rebuilding degraded alpine meadow atop the Qinghai-Tibetan Plateau. However, the rebuilt sown pastures begin to decline a few years after establishing. One of the possible causes for the degradation of sown grassland may come from allelopathy of planted grasses.