Guest Editors
Prof. Dr. Silvana de Paula Quintão Scalon
Email: silvanascalon@ufgd.edu.br
Affiliation: Faculty of Agricultural Sciences, Federal University of Grande Dourados, Dourados, 79804970, Brazil
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Research Interests: plant physiology, ecophysiology
Prof. Dr. Tathiana Elisa Masetto
Email: tathianamasetto@ufgd.edu.br
Affiliation: Faculty of Agricultural Sciences, Federal University of Grande Dourados, Dourados, 79804970, Brazil
Homepage:
Research Interests: Seed Physiology
Summary
Climate change represents one of the greatest challenges facing humanity in the 21st century. One of the primary impacts of climate change is the rise in average global temperature, which has triggered numerous extreme events, including hurricanes, droughts, floods, and more intense and frequent heatwaves. These abiotic stresses are increasingly recurrent, and their severity causes devastating damage to biodiversity, posing a threat to global agricultural production.
Despite breeding efforts, certain stages of the crop life cycle, such as flowering, pollination, development, and seed germination, remain particularly sensitive to climatic events. Among these stages, seed germination is the most sensitive to environmental factors. Therefore, it is important to consider technologies applied to the seed sector as a management strategy to stimulate existing tolerance mechanisms for the growth and productivity of plants grown in environments subject to climate instability.
Abiotic stress reduces gas exchange, compromising photochemical metabolism, reflecting decreases in photosynthetic pigments and increases in reactive oxygen species, causing negative impacts on growth, quality, and productivity of the plant. However, plants have their own mechanisms, which allow them to respond to stress through morphophysiological changes, which may be indicative of plasticity.
This research topic aims to evaluate, among other aspects:
- Mechanisms of signal perception and transduction and the physiological response of plants to stress;
- Effects of climate change on cultivated plants and forest species;
- Effects of seed priming on seed performance and development of seedlings exposed to abiotic stresses;
- Methodologies for mitigating abiotic stress at the cytogenetic level in seeds and plants;
- Understanding the mechanisms of tolerance or molecular, biochemical, and morphological adjustment of plants to stress;
- Occurrence of plant "memory" to stress.
Keywords
abiotic stress, salinity, drought, flooding, cold, beneficial microorganisms, seed priming.
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