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ZmHB53, a Maize Homeodomain-Leucine Zipper I Transcription Factor Family Gene, Contributes to Abscisic Acid Sensitivity and Confers Seedling Drought Tolerance by Promoting the Activity of ZmPYL4.
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January 2025
State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Germplasm Resources in North China, Ministry of Education, College of Agronomy, Hebei Agricultural University, Baoding, Hebei, China.
Plant-specific homeodomain-leucine zipper I (HD-Zip I) transcription factors (TFs) crucially regulate plant drought tolerance. However, their specific roles in maize (Zea mays L.) regulating drought tolerance remain largely unreported.
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GM Crops Food
December 2025
School of Life Science, Henan University, Kaifeng, Henan, People's Republic of China.
Malic acid markedly affects watermelon flavor. Reducing the malic acid content can significantly increase the sweetness of watermelon. An effective solution strategy is to reduce watermelon malic acid content through molecular breeding technology.
View Article and Find Full Text PDFExploring the Role of Carbon Monoxide in Seed Physiology: Implications for Stress Tolerance and Practical Uses.
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December 2024
Department of Plant Physiology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
Carbon monoxide (CO) is recognized as a signaling molecule in plants, inducing various physiological responses. This article briefly examines the physiological functions of CO in seed biology and seedlings' responses to environmental stresses. The activity of heme oxygenase (HO), the main enzyme responsible for CO synthesis, is a key factor controlling CO levels in plant cells.
View Article and Find Full Text PDFABA-mediated regulation of PME12 influences stomatal density, pore aperture, and heat stress response in Arabidopsis thaliana.
Planta
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Institute of Plant Biology, National Taiwan University, Taipei, Taiwan.
PME12-mutated plants displayed altered stomatal characteristics and susceptibility to ABA-induced closure. Despite changes in PME activity, the mutant exhibited enhanced thermotolerance. These findings suggest a complex interplay between pectin methylesterification, ABA response, and stomatal function, contributing to plant adaptation to heat stress.
View Article and Find Full Text PDFDrought induced metabolic shifts and water loss mechanisms in canola: role of cysteine, phenylalanine and aspartic acid.
Front Plant Sci
December 2024
Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada.
Drought conditions severely curtail the ability of plants to accumulate biomass due to the closure of stomata and the decrease of photosynthetic assimilation rate. Additionally, there is a shift in the plant's metabolic processes toward the production of metabolites that offer protection and aid in osmoadaptation, as opposed to those required for development and growth. To limit water loss via non-stomatal transpiration, plants adjust the load and composition of cuticle waxes, which act as an additional barrier.
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