Effect of Short-Term Treatment of Roots with Melatonin on Photosynthesis of Cucumber Leaves

Boyko, E. V.; Golovatskaya, I. F.; Бендер, О.Г.; Plyusnin, I.N.

doi:10.1134/s102144372002003x

Cited by 8 publications

(4 citation statements)

References 26 publications

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“…The effect of leaf age during the fruiting stage, on the stomatal characterisstomatal density (Wu et al, 2014). Mature leaves have high stomatal conductance, which may be conducive to gas exchange through stomata and improve photosynthetic capacity (Savvides et al, 2011;Wu et al, 2014;Boyko et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Differences in photosynthetic characteristics of reproductive branches at different leaf positions of Rosa roxburghii on the Yunnan Guizhou Plateau

Chao,

Wen,

Yumei

et al. 2023

Europ.J.Hortic.Sci.

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In wild Rosa roxburghii populations, the photosynthetic characteristics of the upper, middle, and lower leaves of the reproductive branches were relationship on photosynthetic characteristics to provide a theoretical basis for fruit production. The results show that the a correlation between the leaf position of reproductive branches and the photosynthetic capacity was seen. The results showed that leaf position and age affected the photosynthetic characteristics of Rosa roxburghii. The stomatal area, photosynthetic pigment content, ratio of leaf palisade to sponge tissue areas, P N , G S , and SOD activity of the middle leaves on reproductive branches were leaves. Lower leaves had higher stomatal density, lower stomatal area, and lower photosynthetic rates than the middle and upper leaves.

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Section: Introductionmentioning

confidence: 99%

Differences in photosynthetic characteristics of reproductive branches at different leaf positions of Rosa roxburghii on the Yunnan Guizhou Plateau

Chao,

Wen,

Yumei

et al. 2023

Europ.J.Hortic.Sci.

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“…Melatonin (N-acetyl-5-methoxytryptamine) is a plant growth regulator which is mainly present in plants, bacteria, fungi, and algae [30,31]. According to many previous studies, the involvement of melatonin (ML) in various biological processes in plants has led to results such as germination of seed [32], growth of plant roots [33], flowering [34], senescence of leaves [35], improved capacity of photosynthesis [36], as well as minimizing oxidative damage [37][38][39]. In addition, various studies have demonstrated that the antioxidant effects of melatonin can significantly increase plants' tolerance to abiotic stresses, including cold stress [40], heat stress [41], salt stress, UV stress [42,43], and drought stress [44].…”

Section: Introductionmentioning

confidence: 99%

Modulation of Antioxidant Defense Mechanisms and Morpho-Physiological Attributes of Wheat through Exogenous Application of Silicon and Melatonin under Water Deficit Conditions

et al. 2023

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Although the individual influences of silicon (Si) and melatonin (MT) have been widely studied under various abiotic stresses, little is known about their interaction under drought stress. In this study, an experiment in pots was carried out to investigate the potential of an individual or combined foliar application of silicon (Si) and melatonin (ML) (control (ck), water spray, 4.0 mM Si, 200 µM ML, and 4.0 mM Si + 200 µM ML) on wheat grown at two different water-holding capacity levels (80% well-water condition and 40% drought stress) in order to check of grain yield and some important physiological characteristics. Under drought stress conditions, grain yield and yield attributes, water content and photosynthetic efficiency of wheat crops were significantly decreased. Application of Si+ ML significantly improved leaf pigments (Chl a, Chl b and Chll a + b), leaf relative water content (RWC), proline, total soluble sugars, and total soluble protein. As well as, the activities of important antioxidant enzymes, including catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and ascorbate peroxidase (APX) were effectively boosted through the combined application of Si + ML. This improvement was correlated with an obvious decrease in the levels of MDA, H2O2, and electrolyte leakage and increased water use efficiency. Conclusively, the combination of Si + ML significantly enhanced the 20.21% yield and various morpho-physiological attributes of drought-stressed wheat plants and can be recommended as a promising treatment to enhance wheat productivity in drought-affected regions. Additionally, the results of this study may open up a whole new area of research opportunities at the transcriptional level to further understand the mechanisms underlying how Si + ML integrates and interacts with plants under drought stress.

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“…Melatonin (N-acetyl-5-methoxytryptamine) is a plant growth regulator primarily found in various organisms, including plants, bacteria, fungi, and algae (Debnath et al, 2020). Numerous studies have shown that melatonin plays a crucial role in various biological processes in plants, resulting in significant outcomes such as seed germination (Chen et al, 2021), root growth (Boyko et al, 2020), flowering (Koláˇr et al, 2003), leaf senescence (Ahmad et al, 2020), enhanced photosynthesis capacity (Ahmad et al, 2019), and reduction of oxidative damage (Siddiqui et al, 2020). Moreover, several studies have shown that melatonin's antioxidant properties play a significant role in enhancing plants' resistance to abiotic stressors such as cold stress , heat stress (Wei et al, 2015), salt stress, UV stress , and drought stress (Sharma et al, 2020).…”

Section: Introduction Introduction Introduction Introductionmentioning

confidence: 99%

The effect of melatonin on physiological, biochemical, and enzymatic properties and the expression of antioxidant genes under different irrigation regimes in wheat

MOHAMMAD,

KHALILI,

HAMZE

2023

Not Bot Horti Agrobo

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A split-plot experiment was conducted based on a randomized complete block design with four replications in two years to study the effect of melatonin on the biochemical properties and the gene expression related to antioxidant enzyme activity in bread wheat. Irrigation levels (normal (FC = 80%)), mild stress (FC = 60%), and severe stress (FC = 40%)) were assigned to the main plots, and melatonin foliar applications (zero, 50, 100, 150, and 200 μM) were assigned to Subplots. Results showed that, with the intensification of water stress, the 1000 kernel weight decreased, and the activity of ascorbate peroxidase enzyme and flavonoid content increased. Also, the level of 100 μM melatonin had the highest 1000 kernel weight, flavonoid content, and ascorbate peroxidase enzyme activity. In this study, the highest number of grains per spike, biological yield, grain yield, chlorophyll a, chlorophyll b, carotenoids, and the lowest amount of malondialdehyde recorded for foliar treatment with 50 μM of melatonin under normal irrigation conditions and the highest proline content, total phenol, superoxide dismutase, and catalase were allocated to the 100 μM melatonin foliar treatment under severe water stress conditions. The synergistic effect of water deficit stress and melatonin foliar application increased the activity and expression level of genes related to antioxidant enzymes. So, the content of superoxide dismutase (21.30% and 65.16% respectively) and catalase (50.60% and 54.44% respectively) enzyme activity increased significantly under 100- and 150-mM melatonin foliar application in water severe water stress compared to the corresponding control treatment. Furthermore, mentioned melatonin levels increased the gene expression levels of superoxide dismutase (16.67% and 38.19% respectively), ascorbate peroxides (73.76% and 47.57% respectively), polyphenol oxidase (39.32 and 51.15%) and catalase (39.95% and 50.0% respectively) under an extreme water shortage compared with corresponding control treatment. In general, the application of 100- and 150-mM melatonin induced resistance to water deficit stress in wheat by increasing the expression of antioxidant genes.

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Effect of Short-Term Treatment of Roots with Melatonin on Photosynthesis of Cucumber Leaves

Cited by 8 publications

References 26 publications

Differences in photosynthetic characteristics of reproductive branches at different leaf positions of Rosa roxburghii on the Yunnan Guizhou Plateau

Differences in photosynthetic characteristics of reproductive branches at different leaf positions of Rosa roxburghii on the Yunnan Guizhou Plateau

Modulation of Antioxidant Defense Mechanisms and Morpho-Physiological Attributes of Wheat through Exogenous Application of Silicon and Melatonin under Water Deficit Conditions

The effect of melatonin on physiological, biochemical, and enzymatic properties and the expression of antioxidant genes under different irrigation regimes in wheat

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