Guest Editors
Dr. Eleonora Cataldo
Email: eleonora.cataldo@unifi.it
Affiliation: Università degli Studi di Firenze, Florence, Italy
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Research Interests: Plant physiology and biochemistry, plant metabolism, plant reaction to abiotic stress, drought resistance, heatwaves, biostimulants, zeolite, grapevine
Summary
Global warming has increased the frequency of extreme high-temperature events. High temperature is a major abiotic stress that limits growth and plant production. Crop growth and yields are negatively affected by sub-optimal water supply and abnormal temperatures due to physical damages, physiological disruptions, and biochemical changes. Therefore, crop response to heat stress has been a focus of research. The heat stress response is characterized by inhibition of normal transcription and translation, higher expression of heat shock proteins, and induction of thermotolerance. If stress is too severe, signaling pathways leading to apoptotic cell death are also activated. Plants exposed to heat stress show accumulation of ROS—singlet oxygen (O2), superoxide radical (O2−), hydrogen peroxide (H2O2), and hydroxyl radical (OH−)—generating oxidative stress.
However, the plant response to heat stress involves complex physiological traits and molecular or gene networks that are not fully understood which this Special Issue would like to understand. Here, can be included some recent progress in the physiological (photosynthesis, cell membrane thermostability, oxidative damage, and others), transcriptional, and post-transcriptional (noncoding RNAs) regulation of the plant response to heat stress.
Possible topics for this issue are not limited to those already listed, but may also include:
- Ecophysiological studies on plants related to heat stress
- Adaptation strategies to heat stress
- Agronomic techniques against heat stress (e.g., kaolin, biostimulants, shade nets, and so on)
- Physiological, transcriptional, post-transcriptional, and epigenetic mechanisms underlying the plant response to high temperature.
Keywords
Heat stress; physiological; molecular; non-coding RNA; heat shock proteins; kaolin; biostimulants; shade nets
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