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Phenotyping and metabolomics insights into the effect of melatonin in lettuce under non-stress and salinity conditions.
Physiol Plant
January 2025
Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy.
Melatonin (MLT) is an indole derivative that exhibits hormone-like activities in plants, regulating multiple aspects of growth and development. Due to its role in mitigating oxidative stress and facilitating osmoprotectant accumulation, MLT enhances abiotic stress tolerance, although the pathways and metabolic mechanisms involved remain unclear despite being studied in various crops. This work aimed to investigate the changes elicited by the exogenous MLT application at different concentrations (10, 50, 150 μM) and its role in mitigating the salinity stress in Lactuca sativa L.
View Article and Find Full Text PDFAscorbic acid is involved in melatonin-induced salinity tolerance of maize ( L.) by regulating antioxidant and photosynthetic capacities.
Photosynthetica
January 2025
College of Agronomy, Specialty Corn Institute, Shenyang Agricultural University, 110866 Shenyang, Liaoning Province, China.
Melatonin (MT), an indole compound, can boost plant growth under abiotic stress conditions. This experiment aims to elucidate the synergistic effect of MT and ascorbic acid (AsA) in mitigating salinity stress by assessing the photosynthetic and antioxidant capacity of the maize inbred lines H123 and W961. The results indicated that exogenous MT and AsA significantly improved photosynthetic efficiency and biomass of maize under salinity stress.
View Article and Find Full Text PDFEffects of tillage methods on photosynthetic performance of different functional leaf groups of summer maize in coastal saline-alkali farmland.
Photosynthetica
January 2025
College of Agronomy, Shandong Agricultural University, Tai'an, 271018 Shandong, China.
This study aims to determine the changes in the photosynthetic performance of leaves at different leaf positions and their correlation and to screen out the basic tillage methods suitable for improving the yield. The decrease in soil salt content significantly improved the PSII performance index and quantum yield for electron transport of the bottom leaf group, synergistically enhanced the photosynthetic performance of summer maize leaves (especially the bottom leaf group), and enhanced the correlation between the bottom, middle (including the ear leaf), and upper leaf groups. Under subsoiling tillage conditions, the bottom leaves could produce more carbohydrates to meet the normal growth of the root system, promote the photosynthesis of the middle leaf group at the ear position, and increase the nutrient output of the upper leaf group to the female ear in the middle and later stages of maize aging.
View Article and Find Full Text PDFApplication of indole-3-butyric acid (IBA) enhances agronomic, physiological and antioxidant traits of under saline conditions: a practical approach.
PeerJ
January 2025
Department of Field Crops, Aydin Adnan Menderes University, Aydin, Türkiye.
Background: Salinity stress is a significant challenge in agriculture, particularly in regions where soil salinity is increasing due to factors such as irrigation practices and climate change. This stress adversely affects plant growth, development, and yield, posing a threat to the cultivation of economically important plants like . This study aims to evaluate the effectiveness by proactively applying indole-3-butyric acid (IBA) to cuttings as a practical and efficient method for mitigating the adverse effects of salinity stress.
View Article and Find Full Text PDFDevelopmental plasticity does not improve performance during a species interaction: Implications for species turnover.
Ecology
January 2025
Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
Species interactions can contribute to species turnover when the outcomes of the interactions are context dependent (e.g., change along environmental gradients).
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