Marine Environmental Research, Journal Year: 2024, Volume and Issue: 201, P. 106689 - 106689
Published: Aug. 14, 2024
Language: Английский
The Journal of Horticultural Science and Biotechnology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 14
Published: Jan. 11, 2025
Enhancing floret persistence and bloom duration in ornamental plants through foliar-applied calcium promotes sustainability by improving nutrient efficiency, reducing environmental impacts, conserving resources, boosting commercial value. This two-year study (2021–2022) evaluated the effects of foliar application on gladiolus (cv. White Prosperity). The experiment followed a Randomized Complete Block Design with split-plot arrangement, replicated three times. Main plots received different timings (3rd, 5th, 7th leaf stages), subplots were assigned various concentrations (0, 100, 200, 300, 400 mm). Calcium chloride was applied as spray. Results showed that applying 300 mm at 5th stage yielded longest spike emergence (96.63 days), tallest length (128.50 cm), extended both first (7.23 days) last (5.34 life spans. Additionally, florets treatment had highest content (0.853%). These findings demonstrate precise enhances quality market value contributes to sustainable horticulture optimising use input waste supporting resilience floriculture practices.
Language: Английский
Citations
0
PROTOPLASMA, Journal Year: 2025, Volume and Issue: unknown
Published: April 21, 2025
Language: Английский
Citations
0
Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15
Published: Sept. 18, 2024
Drought stress is a major constraint on plant growth and agricultural productivity. Caffeic acid O-methyltransferase (COMT), an enzyme involved in the methylation of various substrates, plays pivotal role responses to abiotic stress. The involvement COMTs drought response, particularly through enhancement lignin melatonin biosynthesis, remains poorly understood. In this study, LcCOMT was firstly proposed be associated with biosynthesis both melatonin, as demonstrated sequence comparison, phylogenetic analysis, conserved motif identification. vitro enzymatic assays revealed that effectively methylates N-acetylserotonin albeit higher K m value compared caffeic acid. Site-directed mutagenesis residues Phe171 Asp269 resulted significant reduction catalytic activity for acid, minimal impact N-acetylserotonin, underscoring specificity these substrate binding catalysis. Under conditions, expression significantly upregulated. Overexpression gene Arabidopsis plants conferred enhanced tolerance, characterized by elevated levels, increased chlorophyll carotenoid content, heightened activities antioxidant enzymes peroxidase (POD), catalase (CAT), superoxide dismutase (SOD), reduced malondialdehyde (MDA) hydrogen peroxide (H 2 O ) accumulation. This study among few demonstrate COMT-mediated tolerance achieved simultaneous promotion biosynthesis. represents first functionally COMT Apiaceae family, it holds potential target genetic future crop improvement strategies.
Language: Английский
Citations
2
Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15
Published: Dec. 12, 2024
Melatonin is considered a multifunctional stress metabolite and novel plant hormone affecting seed germination, root architecture, circadian rhythms, leaf senescence, fruit ripening. functions related to adaptation stimuli of various natures are especially important. One the key components melatonin’s stress-protective action its ability neutralise reactive oxygen species (ROS) nitrogen directly. However, many effects involvement in signalling network cells influence on expression large number genes important for adverse factors. Insights into functional relationships melatonin with gasotransmitters (GT) – gaseous molecules performing still emerging. This review has analysed summarised experimental data that testify participation main GTs nitric oxide, hydrogen sulfide, carbon monoxide implementation protective effect when plants exposed abiotic nature. In addition, modulation by one most ROS post-translational modifications proteins synthesis under conditions specific physiological exogenous have been reviewed. Finally, prospects GTs’ practical application achieve synergistic considered.
Language: Английский
Citations
1
CABI Reviews, Journal Year: 2024, Volume and Issue: unknown
Published: July 17, 2024
Abstract The escalating global climate shifts lead to several negative impacts, including a continuous increase in average temperatures, imposing significant consequences on plant physiology, biochemical dynamics, and molecular processes. Central these ramifications is the process of photosynthesis, pivotal for carbohydrate synthesis essential sustaining growth amidst normal or stressful environmental conditions. Exposure heat stress (HS) negatively affects photosynthetic potential, primarily due increased reactive oxygen species, disrupting optimal functionality apparatus. Melatonin (MLT) has emerged as multifaceted signaling molecule exhibiting promising capabilities mitigating adverse effects abiotic HS plants. While substantial body literature addresses enhancement resilience various stresses using MLT, present review specifically focuses impact MLT photosynthesis during HS. It emphasizes MLT’s role regulating chlorophyll degradation, stomatal movement, safeguarding proteins, under This could be achieved by mechanisms enhancing transcription photosystem genes, activating antioxidant defenses, promoting xanthophyll cycle, modulating enzymes involved metabolism. Consequently, this aims enhance our understanding how mediates protection HS, offering insights development heat-tolerant crops.
Language: Английский
Citations
0
Marine Environmental Research, Journal Year: 2024, Volume and Issue: 201, P. 106689 - 106689
Published: Aug. 14, 2024
Language: Английский
Citations
0