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Dynamic Metabolomic Changes in the Phenolic Compound Profile and Antioxidant Activity in Developmental Sorghum Grains.
J Agric Food Chem
January 2025
Laboratory of Bioactives (LABBIO), Food and Nutrition Graduate Program (PPGAN), Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro 22290-240, Brazil.
Phenolic compounds (PC) were analyzed by UHPLC-ESI-QTOF-MS in two sorghum genotypes, harvested in two growing seasons (GS) at five distinct days after flowering (DAF) to evaluate how genotype/GS influences the PC synthesis and antioxidant capacity during grain growth. Total phenolic contents were strongly correlated with antioxidant capacity ( > 0.9, < 0.
View Article and Find Full Text PDFChanging Patterns of Seasonal Respiratory Virus Incidence (2018-2023) Pre- and Post-COVID-19, Leicester, UK.
J Med Virol
January 2025
Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK.
Detection of functional diversity gradients and their geoclimatic filters is sensitive to data types (occurrence vs. abundance) and spatial scales (sites vs. regions).
Plant Divers
November 2024
Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil.
Functional diversity (FD) reflects within- and between-site variation of species traits (α- and β-FD, respectively). Understanding how much data types (occurrence-based vs. abundance-weighted) and spatial scales (sites vs.
View Article and Find Full Text PDFDoes season regulate heterochronous leaf growth? Mechanisms of petiole-lamina trade-offs in broad-leaved woody plants of the Tianshan Mountains.
Plant Divers
November 2024
School of Ecology and Environment, Xinjiang University, Wulumuqi, 830017, China.
As the core of leaf functional traits, the trade-off relationship between the petiole and lamina expresses the plant's adaptability to the environment in terms of support structure and photosynthesis. We investigated the proportions of allometric growth in the relationship between the petiole and the lamina of broadleaf woody plants in temperate highland Tianshan Mountains montane forests through three dimensions (length, area, and mass), including the length of the lamina (LL) and the length of the petiole (PL), and the area of the lamina (LA) and petiole cross sectional area (PCA) versus the mass of the lamina (LM) and the mass of the petiole (PM), as well as exploring the characteristics of the variance in response to seasonal changes. We found that the functional traits in all three dimensions showed a clear convergent evolution as the seasons progressed, that is, a "seasonal effect" of increasing and then decreasing.
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.
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