Water stress before harvest of pepper-rosmarin

Alvarenga, Ivan Caldeira Almeida; Valadares, Rafael Vasconcelos; Martins, Ernane Ronie; Oliveira, Flávio Gonçalves; Figueiredo, Lourdes Silva de; Kobayashi, Mauro Koji

doi:10.1590/s0100-204x2011000700005

Cited by 7 publications

(4 citation statements)

References 16 publications

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“…Essa observação foi feita a partir dos resultados da produção (ml) e teor (%) de óleo essencial que foram reduzidos nas maiores lâminas aplicadas (Figura 2 b). O mesmo ocorreu em lâminas aplicadas à cultura de Lippia sidoides Cham., em que o teor de óleo essencial diminuiu linearmente, seguindo o estresse hídrico, alcançando uma redução diária de aproximadamente 50% de óleo essencial (ALVARENGA et al, 2011). Esse resultado corrobora os observados por ABREU & MAZZAFERA (2005) e maiores médias, respectivamente.…”

Section: Resultsunclassified

Crescimento vegetativo, produção de fitomassa e de óleo essencial de Melissa officinalis L. sob diferentes lâminas de irrigação

et al. 2013

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RESUMO O objetivo deste estudo foi avaliar a produção de fi tomassa e óleo essencial da M. offi cinalis L. com lâminas de irrigação no Norte de Minas Gerais como medidas de uso racional da água. O delineamento experimental utilizado foi o inteiramente ao acaso em parcelas subdivididas no tempo, com seis tratamentos defi nidos pelas lâminas de irrigação (T1=0,50xET0; T2=0,75xET0; T3=1,0xET0; T4=1,25xET0; T5=1,5xET0 e T6=1,75xETO) ABSTRACT The objective of this study has been to evaluate the essential oil production of Melissa offi cinalis L. with irrigation blade in the North of Minas Gerais as a measure of water rational use. The experimental design has been completely randomized in subdivided plots in the time with six treatments, defi ned by irrigation blade (T1=0,50xET0; T2=0,75xET0; T3=1,0xET0; T4=1,25xET0; T5=1,5xET0 e T6=1,75 x ETO), and four replications. The study has been conducted at the micro lysimeter. Based on regression analysis, it has been observed that the fi tomass production and growth was infl uenced by water availability. The production and content of the essential oil are inversely proportional to the increase in the irrigation blade. The production of biomass has been obtained from the smaller blade and the evaluation times did not infl uenciate on their blades.

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Section: Resultsunclassified

Crescimento vegetativo, produção de fitomassa e de óleo essencial de Melissa officinalis L. sob diferentes lâminas de irrigação

et al. 2013

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“…Studies on different types of stress and on growth and development, metabolism, and composition of the essential oils of medicinal plants have gained high momentum. It has been reported that each type of stress differently influences plant metabolism and essential oil composition (Alvarenga et al, 2011;Meira et al, 2012;Kasrati et al, 2014). However, few studies have demonstrated the effect of salt stress on development, metabolism, and composition of essential oils of M. officinalis, in addition to physiological and biochemical responses (Ozturk et al, 2004;Khalid and Cail, 2011).…”

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Changes in growth, oxidative metabolism and essential oil composition of lemon balm (Melissa officinalis L.) subjected to salt stress

Bonacina¹,

Trevizan²,

Stracieri³

et al. 2017

Aust J Crop Sci

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Agricultural crops are severely affected by salinity. Recent studies have shown that salt stress signaling components affect plant metabolism and stimulate the accumulation of organic osmolytes and antioxidant substances. This work aimed at assessing the growth and development of lemon balm, Melissa officinalis L., subjected to salt stress, as well as its antioxidant response, essential oil composition, and essential oil yield (%). A completely randomized experimental design was conducted under greenhouse conditions, where 30-days-old lemon balm plants were treated with different NaCl concentrations (0, 50, 100, 150 and 200 mM) for sixty days. The highest concentrations (150 mM and 200 mM NaCl) caused significant reductions in shoot height, shoot fresh mass, relative water content, water activity and chlorophyll production due to changes in osmotic activity. The activities of superoxide dismutase (SOD) and catalase (CAT) increased in plants subjected to salinity. In addition, membrane damage (DM) increased with increase in NaCl concentration. The yield of the essential oils decreased but the number of compounds increased in all the NaCl treatments. The compounds neryl-acetate and geranyl-acetate were detected at 100, 150 and 200mM NaCl, suggesting that under salt stress, lemon balm plants activate the metabolic pathways for the production of terpenoids, consequently producing monoterpenes. Salinity negatively affected most of the parameters evaluated in lemon balm plants. Our results show that lemon balm plants are tolerant to low concentrations of salinity (up to 50mM) as proved by their distinct metabolic responses.

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“…Water deficits directly influence the physiology of medicinal plants altering the biosynthesis of active compounds. It was observed that the production of essential oil in L. sidoides is sensitive to water stress with reduction of up to 50% of its production under the reduction of 0.3 MPa in leaf water potential [15].…”

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General Characteristics, Phytochemistry and Pharmacognosy of Lippia sidoides

Guimarães

Silva

Reis

et al. 2015

Natural Product Communications

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Lippia sidoides Cham. is a plant that belongs to the family Verbenaceae and is commonly known as “alecrim-pimenta”. It was first found in northeastern Brazil, where it is extensively used in traditional medicine. Many studies have been made with the essential oil of L. sidoides, which has a high content of the isomeric compounds thymol and carvacrol. L. sidoides extracts, and particularly the essential oil extracted from its aerial parts, have shown many biological activities such as antifungal, antibacterial, and insecticidal. Given the great biological potentialities of L. sidoides and the amount of recent studies about this plant, the present study aimed to make a survey of its general attributes, cultivation methods, chemical characterization of its extracts and essential oil, as well as its different biological activities.

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Water stress before harvest of pepper-rosmarin

Cited by 7 publications

References 16 publications

Crescimento vegetativo, produção de fitomassa e de óleo essencial de Melissa officinalis L. sob diferentes lâminas de irrigação

Crescimento vegetativo, produção de fitomassa e de óleo essencial de Melissa officinalis L. sob diferentes lâminas de irrigação

Changes in growth, oxidative metabolism and essential oil composition of lemon balm (Melissa officinalis L.) subjected to salt stress

General Characteristics, Phytochemistry and Pharmacognosy of Lippia sidoides

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