The Physiological Mechanism of Exogenous Melatonin on Improving Seed Germination and the Seedling Growth of Red Clover (Trifolium pretense L.) under Salt Stress DOI Creative Commons
Rui Liu, Ting Wang, Jiajie Wang

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(17), P. 2527 - 2527

Published: Sept. 8, 2024

Salt stress can affect various physiological processes in plants, ultimately hindering their growth and development. Melatonin (MT) effectively resist multiple abiotic stresses, improving plant resistance. To analyze the mechanism of exogenous MT to enhance salt tolerance red clover, we conducted a comprehensive study examine influence on parameters, including seed germination indices, seedling morphological traits, photosynthetic indicators, using four distinct clover varieties (H1, H2, H3, H4). This investigation was performed under conditions with differing pH values, specifically utilizing NaCl, Na2SO4, NaHCO3, Na2CO3 as stressors. The results showed that solution immersion significantly improved indicators seeds stress. foliar spraying 50 μM 25 increased SOD activity (21–127%), POD activity, soluble sugar content, proline content (22–117%), chlorophyll (2–66%), net rate. It reduced MDA (14–55%) intercellular CO2 concentration seedlings Gray correlation analysis Mantel test further verified is key factor enhancing stress; most significant improvement observed for NaHCO3 demonstrated improve through variety mechanisms, an increase antioxidant enzyme osmoregulation ability, cell membrane stability. Additionally, it improves efficiency architecture, promoting energy production, growth, optimal resource allocation. These mechanisms function synergistically, enabling sustain normal development

Language: Английский

Exogenous melatonin enhances the continuous cropping tolerance of Tartary buckwheat (Fagopyrum tataricum) by regulating the antioxidant defense system DOI
Xiaoyan Huang,

Jiali Leng,

Changmin Liu

et al.

Physiologia Plantarum, Journal Year: 2024, Volume and Issue: 176(5)

Published: Sept. 1, 2024

Abstract The yield of Tartary buckwheat is significantly affected by continuous cropping. Melatonin plays a crucial role in plant defense mechanisms against abiotic stresses. However, the relationship between melatonin and cropping tolerance remains unclear. This study aimed to analyze physiological mechanism enhancing (abiotic stress) buckwheat. A field experiment was conducted on cultivar Jinqiao 2 under with five application rates, 0 (Control), 10, 50, 100, 200 μmol L −1 , applied during early budding stage. chlorophyll content, antioxidant enzyme activity, osmolyte auxin (IAA) contents, root rhizosphere soil nutrient agronomic traits initially increased then decreased an increase concentration exogenous application, best effects observed at 100 . Compared Control treatment, treatment contents malondialdehyde, superoxide anion free radical, abscisic acid (ABA) average 28.79%, 27.08%, 31.64%, respectively. Exogenous Plants treated μM respectively had 1.88, 2.01, 2.20, 1.78 times higher than those treatment. In summary, particularly enhanced increasing capacity osmotica coordinating endogenous ABA IAA content levels, delaying senescence, ultimately yield.

Language: Английский

Citations

2
Exogenous melatonin alleviates nicosulfuron toxicity by regulating the growth, photosynthetic capacity, and antioxidative defense of sweet corn seedlings DOI Creative Commons
Jiaxing Huang,

Y B Liu,

R. Xiao

et al.

Photosynthetica, Journal Year: 2024, Volume and Issue: 62(1), P. 58 - 70

Published: Jan. 26, 2024

Improper use of nicosulfuron (NSF) may induce harmful effects on plants during weed control. Melatonin (MT) regulates photosynthetic and physiological processes in plants. This study aimed to explore the MT alleviating NSF toxicity by measuring growth parameters, capacity, antioxidative responses sweet corn seedlings. Compared alone, exogenous increased chlorophyll content, transpiration rate, net stomatal conductance, maximum efficiency PSⅡ photochemistry, while reduced malondialdehyde, hydrogen peroxide, superoxide anion radical, proline contents. Moreover, also activity ascorbate peroxidase expression levels of ZmAPX1, ZmAPX2, ZmALS1, ZmCYP81A9. The inhibition p-chlorophenylalanine inhibited positive indexes. results indicated that pretreatment with might effectively mitigate

Language: Английский

Citations

1
Effects of Melatonin Priming on the seed Germination, Seedling Growth, and Biochemical Characteristics of Suaeda Corniculata Exposed to Salinity and Osmotic Stresses DOI

Mingye Zhang,

Ming Jiang,

Dongjie Zhang

et al.

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: 24(2), P. 3579 - 3592

Published: April 24, 2024

Language: Английский

Citations

1
Melatonin differentially refines the metabolome to improve seed formation during grain developmental stages and enhances yield in two contrasting rice cultivars, grown in arsenic-contaminated soil DOI
Aditya Banerjee, Santanu Samanta, Aryadeep Roychoudhury

et al.

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 214, P. 108849 - 108849

Published: June 22, 2024

Language: Английский

Citations

1
The Physiological Mechanism of Exogenous Melatonin on Improving Seed Germination and the Seedling Growth of Red Clover (Trifolium pretense L.) under Salt Stress DOI Creative Commons
Rui Liu, Ting Wang, Jiajie Wang

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(17), P. 2527 - 2527

Published: Sept. 8, 2024

Salt stress can affect various physiological processes in plants, ultimately hindering their growth and development. Melatonin (MT) effectively resist multiple abiotic stresses, improving plant resistance. To analyze the mechanism of exogenous MT to enhance salt tolerance red clover, we conducted a comprehensive study examine influence on parameters, including seed germination indices, seedling morphological traits, photosynthetic indicators, using four distinct clover varieties (H1, H2, H3, H4). This investigation was performed under conditions with differing pH values, specifically utilizing NaCl, Na2SO4, NaHCO3, Na2CO3 as stressors. The results showed that solution immersion significantly improved indicators seeds stress. foliar spraying 50 μM 25 increased SOD activity (21–127%), POD activity, soluble sugar content, proline content (22–117%), chlorophyll (2–66%), net rate. It reduced MDA (14–55%) intercellular CO2 concentration seedlings Gray correlation analysis Mantel test further verified is key factor enhancing stress; most significant improvement observed for NaHCO3 demonstrated improve through variety mechanisms, an increase antioxidant enzyme osmoregulation ability, cell membrane stability. Additionally, it improves efficiency architecture, promoting energy production, growth, optimal resource allocation. These mechanisms function synergistically, enabling sustain normal development

Language: Английский

Citations

1