Effect of Germanium Treatment on Growth and Production of Organic Germanium in Oplopanax elatus

Kim, Hee Young; Seong, Eun Soo; Yoo, Ji Hye; Choi, Jae Hyeok; Kang, Byeong Ju; Jeon, Mi Ran; Kim, Myong Jo; Yu, Chang Yeon

doi:10.7783/kjmcs.2016.24.3.214

Cited by 4 publications

(2 citation statements)

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“…A team of scientists from Korea conducted a number of studies with Oplopanax elatus plants and confirmed that exogenous germanium is able to increase the antioxidant activity and activity of DPPH and ABTS radicals compared to control plants. In addition, the total content of phenol and flavonoids in experimental plants treated with 50 mg/L GeO 2 was higher than in the control plants (Kim et al, 2016). It is believed that in plants germanium activates the decomposition of water into hydrogen and oxygen, enhances oxygen utilization, and also affects hydrogen ions, alleviates its detrimental effect on the cell, promoting interaction with oxygen by transporting it to all parts of the plant.…”

Section: Discussionmentioning

confidence: 96%

Influence of metal nanocarboxylates and different water supply conditions on efficiency of soybean-rhizobial symbiotic systems

Kots

Rybachenko

Mamenko

et al. 2021

Regul. Mech. Biosyst.

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Insufficient water supply is one of the main factors that significantly reduce the activity of nitrogen fixation by legume-rhizobial symbiotic systems. That is why comprehensive research on aspects of their resistance to water stress and the search for scientifically substantiated ways to improve the existing ones and develop modern, competitive technologies of growing legumes in arid conditions are becoming especially relevant. The aim of the work was to investigate the processes of formation and functioning of soybean-rhizobial symbiotic systems developed under conditions of different water supply and influence of nanocarboxylates of cobalt, ferum, germanium, chromium, сuprum and molybdenum. The nanoparticles of specified metal nanocarboxylates were used as components of the inoculation suspension of rhizobia of Tn5 mutant B1-20 for soybean seed treatment. A model drought lasting 14 days was created by controlled irrigation. Microbiological and physiological research methods were used in the study. We determined that insufficient water supply caused a significant decrease in the nodulation potential of rhizobia and the intensity of molecular nitrogen fixation by symbiotic systems formed with the participation of soybean plants and nodule bacteria without adding these metal nanocarboxylates to the inoculation suspension. Application of most of the metal nanocarboxylates used as components of the inoculation suspension mitigated the negative impact of stress on the investigated parameters. The study revealed the stimulating effect of cobaltnanocarboxylate on the activity of molecular nitrogen fixation, which was more pronounced in the conditions of insufficient water supply. Symbiotic soybean systems formed with the participation of nodule bacteria containing germaniumcarboxylate nanoparticles were proved to be the least sensitive to the negative impact of insufficient water supply. This was indicated by high rates of nodulation and nitrogen-fixing activity compared with other studied symbiotic systems. We confirmed that the addition of chromium nanocarboxylate to the inoculation suspension of rhizobia provided the highest rates of nodulation and nitrogen-fixing activity of soybean root nodules under optimal growing conditions and, at the same time, had no noticeable positive effect under water stress. We determined that сuprum and molybdenum nanocarboxylates, as components of the inoculation suspension, regardless of the water supply level, had a less notable positive effect on the processes of nodule formation and nitrogen fixation, and in some cases even led to a decrease in the investigated values for control plants. Thus, the study demonstrated that the use of germanium, cobalt and ferum nanocarboxylates as components of the bacterial suspension helped to increase the adaptation of the formed legume-rhizobial symbiotic systems to water stress, as evidenced by the maximum indexes of nodulation and molecular nitrogen fixation in the context of insufficient water supply and recovery of their level to optimal after the stress influence had ended. Based on the results, it was concluded that inoculation of seeds by the complex bacterial preparations made on the basis of Bradyrhizobium japonicum B1-20 with a content of germanium, cobalt and ferum nanocarboxylates in the concentration of 1:1000 can become one of the important means in soybean growing technologies of increasing the nitrogen-fixing potential and resistance of plants to insufficient water supply.

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Section: Discussionmentioning

confidence: 96%

Influence of metal nanocarboxylates and different water supply conditions on efficiency of soybean-rhizobial symbiotic systems

Kots

Rybachenko

Mamenko

et al. 2021

Regul. Mech. Biosyst.

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“…Lactuca indica contains various physiologically active substances such as alphatics, flavonoids, triterpenes, sesquiterpene lactones ( 2 ). In addition, a number of research results have shown that the root of Lactuca indica has anticancer activity, blood lipid lowering, blood sugar lowering and antioxidant activities, suggesting that the extract of bitter cabbage root may contain antioxidant and effective physiologically active substances that inhibit cancer cells ( 4 – 6 ). In recent years, there have been an increasing number of studies on the development of health functional materials using Lactuca indica , but research on the use of its leaf, stem and flower as health functional materials has not been pursued.…”

Section: Introductionmentioning

confidence: 99%

Optimization of ultrasonic-assisted extraction of flavonoids from Lactuca indica L. cv. Mengzao and their antioxidant properties

et al. 2023

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In this study, the ultrasound-assisted extraction (UAE) conditions of flavonoids from Lactuca indica L.cv. Mengzao (LIM) leaves was optimized, and the flavonoids content and their antioxidant potential in different parts were analyzed. The optimal extraction parameters to obtain the highest total flavonoids content (TFC) were a a ratio of liquid to solid of 24.76 mL/g, ultrasonic power of 411.43 W, ethanol concentration of 58.86% and an extraction time of 30 min, the average TFC of LIM leaves could reach 48.01 mg/g. For the yield of flavonoids, the UAE method had the best extraction capacity compared with solvent extraction and microwave-assisted extraction (MAE). In general, the TFC in different parts of LIM followed the order flower > leaf > stem > root, the flowering period is the most suitable harvesting period. From ultra-high performance liquid chromatography-mass spectrometry (UPLC–MS) quantification, the flower samples showed significantly higher six flavonoids and had the highest radical scavenging capacities compared to other samples. A high positive correlation was observed between the antioxidant activity and TFC, luteolin-7-O-glucoside and rutin were significantly (p < 0.05) correlated with all antioxidant evaluations. This study provides valuable information for the development and utilization of flavonoids in Lactuca indica as ingredients in food, feed and nutritional health products.

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Comparative analysis of the transcriptomes from regenerated plants and root explants of endangered Oplopanax elatus

Seo,

Choi,

Ham

et al. 2024

Genes Genom

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Effect of Germanium Treatment on Growth and Production of Organic Germanium in Oplopanax elatus

Cited by 4 publications

References 0 publications

Influence of metal nanocarboxylates and different water supply conditions on efficiency of soybean-rhizobial symbiotic systems

Influence of metal nanocarboxylates and different water supply conditions on efficiency of soybean-rhizobial symbiotic systems

Optimization of ultrasonic-assisted extraction of flavonoids from Lactuca indica L. cv. Mengzao and their antioxidant properties

Comparative analysis of the transcriptomes from regenerated plants and root explants of endangered Oplopanax elatus

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