Drought stress represents a major constraint with significant impacts on wheat crop globally. The use of plant growth-promoting bacteria (PGPB) has emerged as a promising strategy to alleviate the detrimental impacts of water stress and enhance plant development. We investigated 24 strains from diverse ecosystems, assessed for PGP traits and tolerance ability to abiotic stresses (drought, salinity, temperature, pH, heavy metals, pollutants, herbicides, and fungicides). The most effective bacterial strains ME1, Pa, MR6, and sp D13 were chosen. Furthermore, these strains exhibited PGP activities under osmotic stress (0, 10, 20, and 30% PEG-6000). The impact of these osmotolerant PGPBs on wheat ( L.) growth under drought stress was assessed at two plant growth stages. In an wheat seed germination experiment, bacterial inoculation significantly enhanced germination parameters. In pot experiments, the potential of these bacteria was evaluated in wheat plants under three treatments: Well-watered (100% field capacity), moderate stress (50% FC), and severe stress (25% FC). Results showed a significant decline in wheat growth parameters under increasing water stress for uninoculated seedlings. In contrast, bacterial inoculation mitigated these adverse effects, significantly improving morphological parameters and chlorophyll pigment contents under the stress conditions. While malondialdehyde (lipid peroxidation) and proline contents increased significantly with drought intensity, they decreased after bacterial inoculation. The antioxidant enzyme activities (GPX, CAT, and SOD) in plants decreased after bacterial inoculation. The increased root colonization capacity observed under water stress was attributed to their ability to favorable adaptations in a stressful environment. This study highlighted the potential of selected PGPB to alleviate water stress effects on wheat, promoting practical applications aimed at enhancing crop resilience under conditions of water shortage.
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http://dx.doi.org/10.3934/microbiol.2024025 | DOI Listing |
Am J Hosp Palliat Care
January 2025
Graduate School of Medicine, Mie University, Tsu, Japan.
Background: Delirium is a condition characterized by an acute and transient disturbance in attention, cognition, and consciousness. It is increasingly prevalent at the end of life in patients with cancer. While non-pharmacological nursing interventions are essential for delirium prevention, their effectiveness in terminally ill patients with cancer remains unclear.
View Article and Find Full Text PDFJ Complement Integr Med
January 2025
Department of Basic Medical Sciences, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Background: Excessive fluoride exposure leads to increased oxidative stress and lipid peroxidation, causing harmful effects on the metabolic organs in the human body. Betanin, a pigment obtained from beetroot, is seen to have powerful anti-inflammatory and antioxidant. The study was conducted to determine the role of betanin in fluoride induced hepato-renal toxicity in Wistar rats.
View Article and Find Full Text PDFPLoS One
January 2025
Département des Sciences Naturelles, Institut des Sciences de la Forêt Tempérée (ISFORT), Université du Québec en Outaouais (UQO), Ripon, Canada.
Forests face an escalating threat from the increasing frequency of extreme drought events driven by climate change. To address this challenge, it is crucial to understand how widely distributed species of economic or ecological importance may respond to drought stress. In this study, we examined the transcriptome of white spruce (Picea glauca (Moench) Voss) to identify key genes and metabolic pathways involved in the species' response to water stress.
View Article and Find Full Text PDFNaunyn Schmiedebergs Arch Pharmacol
January 2025
Meisterbio Co., Ltd., Okayama, Japan.
Natural stilbene compounds, such as resveratrol and pterostilbene, have been focused on owing to their diverse biological activities associated with antioxidant, anti-inflammatory, and anti-aging properties. However, their low water solubility limits their advanced applications. In this study, we investigated the protective effects of selected stilbene compounds (resveratrol, oxyresveratrol, gnetol, piceatannol, and pterostilbene) and their water-soluble derivatives (piceid, resveratrol polysaccharide, pterostilbene trisaccharide, and pterostilbene polysaccharide) against UVA-, UVB irradiation, tertiary-butyl hydroperoxide (t-BuOOH)- and hydrogen peroxide (HO)-induced injury in human epidermal cells.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Afe Babalola University, Ado-Ekiti, Ekiti, Nigeria.
Background: Stress during pregnancy and postpartum periods has been associated with short-term cognitive deficits with potential long-term Alzheimer's disease (AD) risk. However, the biological mechanisms mediating these effects remain poorly understood. This study investigated the impacts of recurrent heat and simulated refugee camp stress across pregnancy and the postpartum period on cognition, affective behaviour, and AD neuropathological changes in primiparous rats.
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