Effect of water supply on growth and polyphenols of lemon balm (<i>Melissa officinalis</i>L.) and thyme (<i>Thymus vulgaris</i>L.)

Németh-Zámbori, Éva; Pluhár, Zsuzsanna; Szabó, Krisztina; Malekzadeh, Mahmoud; Radácsi, Péter; Inotai, Katalin; Komáromi, Bonifác; Seidler-Łożykowska, K.

doi:10.1556/018.67.2016.1.5

Cited by 11 publications

(4 citation statements)

References 18 publications

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“…During recent investigations in climatic chambers, lower SWC resulted in reduced biomass. However, the TPC and RA content were not affected by the treatments (Németh-Zámbori et al, 2016). This is practically in harmony with the present findings where no exact direction of change in phenolic accumulation could be established due to different water supply.…”

Section: Discussionsupporting

confidence: 92%

“…In our recent experiment in a climatic chamber, we compared lemon balm plants grown in sandy soil containing water up to 25, 40 and 70% of soil water capacity (SWC), respectively. It was found that poor water supply resulted in significantly reduced shoot mass production, while the applied treatments did not affect TPC and RA contents (Németh-Zámbori et al, 2016).…”

Section: Introductionmentioning

confidence: 95%

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Influence of water supply and fluctuations on yield and quality of lemon balm (Melissa offici-nalis L.)

Németh¹,

Radácsi²,

Gosztola³

et al. 2017

Aust J Crop Sci

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The response of lemon balm (Melissa officinalis) on drought stress was investigated in a pot experiment in 2015-16. In treatment S1, plants grew in 40% saturation of soil water capacity (SWC) for six weeks. In treatment S2, the same level of water supply was used for three weeks, while the control plants received irrigation up to 70% SWC throughout the experimental period. In the second year, after the stress period, a 3 week re-hydration phase was also carried out. Growth, morphology, biomass, active components and antioxidant capacity of the plants were measured. Six weeks growth at reduced soil water content (40% soil water capacity) resulted in a significant decrease of all morphological features of lemon balm as well as the fresh mass of shoots, as compared to the control (70% SWC). The effect of the shorter drought treatment (3 weeks) was less characteristic. After the three week recovery period no significant difference concerning number of branches, leaf length and fresh shoot mass was detectable among the plants. Thus, the retarding effect of even the 6 week drought stress (S1) was reversible in lemon balm. The changes in active components (volatile compounds, phenolics, rosmarinic acid) and antioxidant capacity did not show meaningful changes due to the treatments. After a three-week re-hydration period a significant increase was found in each parameter. It was established that a six week period of water shortage (water content of 40% SWC) could threaten the yield of lemon balm, although re-hydration by regular irrigation may induce significant recovery. The impact of water shortage on the quality of the drug was less critical.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 95%

Influence of water supply and fluctuations on yield and quality of lemon balm (Melissa offici-nalis L.)

Németh¹,

Radácsi²,

Gosztola³

et al. 2017

Aust J Crop Sci

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“…This might be an explanation to the high FRAP and TPC values of 'Grosso' and higher TPC values of the other Lavandula cultivars from Dörgicse. However, our findings do not correspond to those reported by previous authors (Trócsányi et al, 2015;Németh-Zámbori et al, 2016;Radácsi et al, 2016) concerning drought stress reactions of other xerofil species, such as Thymus vulgaris. According to their results, it was concluded that more polyphenols, such as rosmarinic acid were detected in thyme and lemon balm plants as a consequence of water deficiency, while in our experiment this phenomenon was not observed in the growth year of 2017.…”

Section: 'Grappenhall'contrasting

confidence: 99%

Antioxidant capacity and total polyphenol content of Lavandula cultivars at different growing areas in Hungary

Détár

Németh

Pluhár

2020

Int. j. hortic. sci.

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Lavandula species are worldwide grown essential oil producing medicinal plants with considerable economic value. Beside volatile oil, lavender also contains different phenolic compounds which have been less widely studied till now. Cultivation of lavender has become widespread in Hungary in the recent years, however, growers have limited knowledge on the productivity of cultivars available. In our research we were aimed to studying the antioxidant capacity and total polyphenol content of samples collected in two growing areas (Dörgicse and Szomód) from flowers of two L. angustifolia (‘Hidcote’, ‘Munstead’) and two L. × intermedia (‘Grosso’, Grappenhall’) varieties, during the full blooming period of 2017. Antioxidant capacity of the samples was determined by FRAP assay (Benzie and Strain, 1996), while total polyphenol content (TPC) was measured by a modified method of Singleton and Rossi (1965). According to our results, varieties of L. × intermedia showed higher values of antioxidant capacity and of total polyphenol content, than those of L. angustifolia cultivars. Among them, both the antioxidant capacity (179.6 mg AAE/g DW) and total polyphenol content values (152.4 mg GAE/g DW) of ’Grosso’ from Dörgicse were the highest. Concerning FRAP values of all the cultivars investigated, larger variability were found in Dörgicse, than in Szomód. Regarding the effect of growing area, each cultivar represented similar FRAP values in Dörgicse and in Szomód, except for ’Grosso’. However, in the case of TPC values, higher variability was observed between the growing areas, especially in the case of ’Grosso’. In the future our studies on lavender polyphenols will be completed with qualitative evaluation of the values obtained by HPLC analysis.

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“…A strong positive correlation was detected between the AOC and TPC data (R = 0.889, p = 0.000). Similarly, in the related species, lemon balm and thyme proved to have tight connection between these values [15]. The most important phenolic compound in perilla is the RA, which may also attribute a strong AOC [7,8].…”

Section: Discussionmentioning

confidence: 80%

Comparison of the production and chemical constituents of five Perilla frutescens (L.) Britt. accessions

Radácsi

Sárosi

Szomor

et al. 2017

Acta Biologica Hungarica

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An open field experiment was carried out with five purple Perilla frutescens accessions (588P, GB, J3, JTD3, PS3) in 2014 and 2015. Morphological traits, production, total phenolic content (TPC), essential oil content (EOC) and composition as well as the antioxidant capacity (AOC) were investigated. Highest biomass was produced by JTD3 in both years. The antioxidant capacity and total phenolic content in the stems was lower than in the leaves in all accessions. Leaves of accession GB produced the highest AOC values (215.594 ± 1.437 in 2014 and 86.609 ± 3.602 mg AAE g in 2015, respectively) while the strain 588P showed the lowest values (139.544 ± 1.934 in 2014 and 38.966 ± 4.569 mg AAE g in 2015, respectively). The highest TPC values were measured by PS3 in 2014 (204.320 ± 1.822 mg GAE g) and GB in 2015 (136.450 ± mg GAE g). The 588P produced the highest essential oil content (1.432 ml 100 g DM) while J3 had the lowest (0.144 ml 100 g DM) in both years. Strong positive correlation was found between the density of glandular hairs and the essential oil content. Three accessions (588P, J3, JTD3) belong to the perillaldehyde chemotype while GB and PS3 to the dehydro elsholtzia ketone chemotype. All studied accessions can be cultivated in Hungary. For the biomass production the JTD3, while for the essential oil production the 588P can be recommended.

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Effect of water supply on growth and polyphenols of lemon balm (Melissa officinalisL.) and thyme (Thymus vulgarisL.)

Cited by 11 publications

References 18 publications

Influence of water supply and fluctuations on yield and quality of lemon balm (Melissa offici-nalis L.)

Influence of water supply and fluctuations on yield and quality of lemon balm (Melissa offici-nalis L.)

Antioxidant capacity and total polyphenol content of Lavandula cultivars at different growing areas in Hungary

Comparison of the production and chemical constituents of five Perilla frutescens (L.) Britt. accessions

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