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Olga Tzakou - One of the best experts on this subject based on the ideXlab platform.
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Chemical composition and fumigant activity of essential oils from six plant families against Sitophilus oryzae (Col: Curculionidae)
Journal of Pest Science, 2017Co-Authors: Aikaterini Koutsaviti, Antonios Michaelakis, Vasiliki Antonopoulou, Anthi Vlassi, Spyridon Antonatos, Dimitrios P. Papachristos, Olga TzakouAbstract:Within the framework of finding new fumigants, less toxic and environmentally friendly, in comparison with conventional fumigants, natural products and essential oils are considered to be alternative sources of potentially active compounds. In this context, the aim of the present study was the chemical analysis and the evaluation of fumigant toxicity against the adults of rice weevil Sitophylus oryzae of sixteen essential oils obtained from fourteen plant species. The essential oils of the species Apium nodiflorum, Bupleurum fruticosum, Crithmum maritimum, Liquidambar orientalis and Laurus azorica consisted mainly of monoterpene hydrocarbons. Oxygenated monoterpenes were the prevailing group of compounds in the essential oils of Laurus nobilis, Myrtus communis, Salvia fruticosa S. pomifera subsp. Calycina, S. officinalis and Thymbra capitata. The essential oils of Cotinus coggygria, S. microphylla and Teucrium capitatum were rich in sesquiterpenes. The most active essential oils were those of T. capitata (LC50 = 3.4 μL/L air) and S. pomifera subsp. Calycina (LC50 = 4.4 μL/L air) against S. oryzae adults. The essential oils of S. fruticosa, L. nobilis and S. officinalis were also found to be highly toxic (LC50 = 7.4–15.5 μL/L air). Most of the other essential oils tested exhibited moderate to low toxicities (LC50 = 17.7–37.9 μL/L air), while those of C. coggygria and S. microphylla did not exhibit any noticeable activity. Our results indicate that some essential oils, and in particular those of T. capitata and S. pomifera subsp. Calycina might be promising fumigants for the control of important pests of stored grain such as the rice weevil S. oryzae.
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chemical composition and larvicidal evaluation of mentha salvia and melissa essential oils against the west nile virus mosquito culex pipiens
Parasitology Research, 2010Co-Authors: George Koliopoulos, E Kioulos, Antonios Michaelakis, Danae Pitarokili, Olga TzakouAbstract:The volatile metabolites of wild-growing Mentha spicata, M. longifolia, M. suaveolens, Melissa officinalis, Salvia fruticosa, S. pomifera subsp. Calycina, and S. pomifera subsp. pomifera from Greece were determined by gas chromatography and gas chromatography–mass spectrometry. The insecticidal properties of the analyzed essential oils were screened on Culex pipiens larvae. Additionally two of the main components of the essential oils, piperitenone oxide and 1,8-cineole were assayed against C. pipiens in order to define the affiliation between them and the larvicidal properties of the oils. The most effective oils were M. suaveolens (major constituent piperitenone oxide, 62.4%), M. spicata (piperitenone oxide, 35.7% and 1,8-cineole, 14.5%) and M. longifolia—Central Greece (piperitenone oxide, 33.4%; 1,8-cineole, 24.5% and trans-piperitone epoxide, 17.4%), which exhibited LC50 values ranging from 47.88 to 59.33 mg l−1. Medium activity revealed the oils of M. officinalis (terpin-4-ol, 15.8%; caryophyllene oxide, 13.2%; sabinene, 12.9%; β-pinene, 12.1%; and trans-caryophyllene, 10.2%), M. longifolia—Southern Greece (carvone, 54.7% and limonene 20.0%), S. pomifera subsp. pomifera (trans-caryophyllene, 22.5% and trans-thujone, 21.0%), S. pomifera subsp. Calycina—West Southern Greece (trans-thujone, 56.1% and 1,8-cineole, 10.4%), and S. fruticosa—population 2 (camphor, 23.1%; α-pinene, 12.7%; and borneol, 12.6%), with LC50 values ranging from 78.28 to 91.45 mg l−1. S. pomifera subsp. Calycina (Central Greece) essential oil (trans-thujone, 26.5% and cis-thujone, 12.0%) presented rather low activity (LC50 values 140.42 mg l−1), while S. fruticosa—population 1 (1,8-cineole, 31.4% and camphor, 22.6%) was the only inactive oil. Additionally, the constituent piperitenone oxide was found to be highly active (LC50 values 9.95 mg l−1), whereas 1,8-cineole revealed no toxicity.
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Chemical composition and larvicidal evaluation of Mentha, Salvia, and Melissa essential oils against the West Nile virus mosquito Culex pipiens
Parasitology research, 2010Co-Authors: George Koliopoulos, E Kioulos, Antonios Michaelakis, Danae Pitarokili, Olga TzakouAbstract:The volatile metabolites of wild-growing Mentha spicata, M. longifolia, M. suaveolens, Melissa officinalis, Salvia fruticosa, S. pomifera subsp. Calycina, and S. pomifera subsp. pomifera from Greece were determined by gas chromatography and gas chromatography-mass spectrometry. The insecticidal properties of the analyzed essential oils were screened on Culex pipiens larvae. Additionally two of the main components of the essential oils, piperitenone oxide and 1,8-cineole were assayed against C. pipiens in order to define the affiliation between them and the larvicidal properties of the oils. The most effective oils were M. suaveolens (major constituent piperitenone oxide, 62.4%), M. spicata (piperitenone oxide, 35.7% and 1,8-cineole, 14.5%) and M. longifolia--Central Greece (piperitenone oxide, 33.4%; 1,8-cineole, 24.5% and trans-piperitone epoxide, 17.4%), which exhibited LC(50) values ranging from 47.88 to 59.33 mg l(-1). Medium activity revealed the oils of M. officinalis (terpin-4-ol, 15.8%; caryophyllene oxide, 13.2%; sabinene, 12.9%; beta-pinene, 12.1%; and trans-caryophyllene, 10.2%), M. longifolia--Southern Greece (carvone, 54.7% and limonene 20.0%), S. pomifera subsp. pomifera (trans-caryophyllene, 22.5% and trans-thujone, 21.0%), S. pomifera subsp. Calycina--West Southern Greece (trans-thujone, 56.1% and 1,8-cineole, 10.4%), and S. fruticosa--population 2 (camphor, 23.1%; alpha-pinene, 12.7%; and borneol, 12.6%), with LC(50) values ranging from 78.28 to 91.45 mg l(-1). S. pomifera subsp. Calycina (Central Greece) essential oil (trans-thujone, 26.5% and cis-thujone, 12.0%) presented rather low activity (LC(50) values 140.42 mg l(-1)), while S. fruticosa--population 1 (1,8-cineole, 31.4% and camphor, 22.6%) was the only inactive oil. Additionally, the constituent piperitenone oxide was found to be highly active (LC(50) values 9.95 mg l(-1)), whereas 1,8-cineole revealed no toxicity.
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composition and antifungal activity of the essential oil of salvia pomifera subsp Calycina growing wild in greece
Journal of Essential Oil Research, 1999Co-Authors: Danae Pitarokili, Olga Tzakou, Maria Couladis, Eumorfia VerykokidouAbstract:Abstract The hydrodistilled essential oil of the aerial parts of Salvia pomifera subsp. Calycina was analyzed by GC/MS. Fifty compounds representing 98% of the oil were identified. The main components of the oil were α-thujone (20.3%), β-thujone (36.3%) and myrcene (5.9%). The biostatic activity of the oil was evaluated in vitro against seven fungal strains.
George Koliopoulos - One of the best experts on this subject based on the ideXlab platform.
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chemical composition and larvicidal evaluation of mentha salvia and melissa essential oils against the west nile virus mosquito culex pipiens
Parasitology Research, 2010Co-Authors: George Koliopoulos, E Kioulos, Antonios Michaelakis, Danae Pitarokili, Olga TzakouAbstract:The volatile metabolites of wild-growing Mentha spicata, M. longifolia, M. suaveolens, Melissa officinalis, Salvia fruticosa, S. pomifera subsp. Calycina, and S. pomifera subsp. pomifera from Greece were determined by gas chromatography and gas chromatography–mass spectrometry. The insecticidal properties of the analyzed essential oils were screened on Culex pipiens larvae. Additionally two of the main components of the essential oils, piperitenone oxide and 1,8-cineole were assayed against C. pipiens in order to define the affiliation between them and the larvicidal properties of the oils. The most effective oils were M. suaveolens (major constituent piperitenone oxide, 62.4%), M. spicata (piperitenone oxide, 35.7% and 1,8-cineole, 14.5%) and M. longifolia—Central Greece (piperitenone oxide, 33.4%; 1,8-cineole, 24.5% and trans-piperitone epoxide, 17.4%), which exhibited LC50 values ranging from 47.88 to 59.33 mg l−1. Medium activity revealed the oils of M. officinalis (terpin-4-ol, 15.8%; caryophyllene oxide, 13.2%; sabinene, 12.9%; β-pinene, 12.1%; and trans-caryophyllene, 10.2%), M. longifolia—Southern Greece (carvone, 54.7% and limonene 20.0%), S. pomifera subsp. pomifera (trans-caryophyllene, 22.5% and trans-thujone, 21.0%), S. pomifera subsp. Calycina—West Southern Greece (trans-thujone, 56.1% and 1,8-cineole, 10.4%), and S. fruticosa—population 2 (camphor, 23.1%; α-pinene, 12.7%; and borneol, 12.6%), with LC50 values ranging from 78.28 to 91.45 mg l−1. S. pomifera subsp. Calycina (Central Greece) essential oil (trans-thujone, 26.5% and cis-thujone, 12.0%) presented rather low activity (LC50 values 140.42 mg l−1), while S. fruticosa—population 1 (1,8-cineole, 31.4% and camphor, 22.6%) was the only inactive oil. Additionally, the constituent piperitenone oxide was found to be highly active (LC50 values 9.95 mg l−1), whereas 1,8-cineole revealed no toxicity.
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Chemical composition and larvicidal evaluation of Mentha, Salvia, and Melissa essential oils against the West Nile virus mosquito Culex pipiens
Parasitology research, 2010Co-Authors: George Koliopoulos, E Kioulos, Antonios Michaelakis, Danae Pitarokili, Olga TzakouAbstract:The volatile metabolites of wild-growing Mentha spicata, M. longifolia, M. suaveolens, Melissa officinalis, Salvia fruticosa, S. pomifera subsp. Calycina, and S. pomifera subsp. pomifera from Greece were determined by gas chromatography and gas chromatography-mass spectrometry. The insecticidal properties of the analyzed essential oils were screened on Culex pipiens larvae. Additionally two of the main components of the essential oils, piperitenone oxide and 1,8-cineole were assayed against C. pipiens in order to define the affiliation between them and the larvicidal properties of the oils. The most effective oils were M. suaveolens (major constituent piperitenone oxide, 62.4%), M. spicata (piperitenone oxide, 35.7% and 1,8-cineole, 14.5%) and M. longifolia--Central Greece (piperitenone oxide, 33.4%; 1,8-cineole, 24.5% and trans-piperitone epoxide, 17.4%), which exhibited LC(50) values ranging from 47.88 to 59.33 mg l(-1). Medium activity revealed the oils of M. officinalis (terpin-4-ol, 15.8%; caryophyllene oxide, 13.2%; sabinene, 12.9%; beta-pinene, 12.1%; and trans-caryophyllene, 10.2%), M. longifolia--Southern Greece (carvone, 54.7% and limonene 20.0%), S. pomifera subsp. pomifera (trans-caryophyllene, 22.5% and trans-thujone, 21.0%), S. pomifera subsp. Calycina--West Southern Greece (trans-thujone, 56.1% and 1,8-cineole, 10.4%), and S. fruticosa--population 2 (camphor, 23.1%; alpha-pinene, 12.7%; and borneol, 12.6%), with LC(50) values ranging from 78.28 to 91.45 mg l(-1). S. pomifera subsp. Calycina (Central Greece) essential oil (trans-thujone, 26.5% and cis-thujone, 12.0%) presented rather low activity (LC(50) values 140.42 mg l(-1)), while S. fruticosa--population 1 (1,8-cineole, 31.4% and camphor, 22.6%) was the only inactive oil. Additionally, the constituent piperitenone oxide was found to be highly active (LC(50) values 9.95 mg l(-1)), whereas 1,8-cineole revealed no toxicity.
Antonios Michaelakis - One of the best experts on this subject based on the ideXlab platform.
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Chemical composition and fumigant activity of essential oils from six plant families against Sitophilus oryzae (Col: Curculionidae)
Journal of Pest Science, 2017Co-Authors: Aikaterini Koutsaviti, Antonios Michaelakis, Vasiliki Antonopoulou, Anthi Vlassi, Spyridon Antonatos, Dimitrios P. Papachristos, Olga TzakouAbstract:Within the framework of finding new fumigants, less toxic and environmentally friendly, in comparison with conventional fumigants, natural products and essential oils are considered to be alternative sources of potentially active compounds. In this context, the aim of the present study was the chemical analysis and the evaluation of fumigant toxicity against the adults of rice weevil Sitophylus oryzae of sixteen essential oils obtained from fourteen plant species. The essential oils of the species Apium nodiflorum, Bupleurum fruticosum, Crithmum maritimum, Liquidambar orientalis and Laurus azorica consisted mainly of monoterpene hydrocarbons. Oxygenated monoterpenes were the prevailing group of compounds in the essential oils of Laurus nobilis, Myrtus communis, Salvia fruticosa S. pomifera subsp. Calycina, S. officinalis and Thymbra capitata. The essential oils of Cotinus coggygria, S. microphylla and Teucrium capitatum were rich in sesquiterpenes. The most active essential oils were those of T. capitata (LC50 = 3.4 μL/L air) and S. pomifera subsp. Calycina (LC50 = 4.4 μL/L air) against S. oryzae adults. The essential oils of S. fruticosa, L. nobilis and S. officinalis were also found to be highly toxic (LC50 = 7.4–15.5 μL/L air). Most of the other essential oils tested exhibited moderate to low toxicities (LC50 = 17.7–37.9 μL/L air), while those of C. coggygria and S. microphylla did not exhibit any noticeable activity. Our results indicate that some essential oils, and in particular those of T. capitata and S. pomifera subsp. Calycina might be promising fumigants for the control of important pests of stored grain such as the rice weevil S. oryzae.
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chemical composition and larvicidal evaluation of mentha salvia and melissa essential oils against the west nile virus mosquito culex pipiens
Parasitology Research, 2010Co-Authors: George Koliopoulos, E Kioulos, Antonios Michaelakis, Danae Pitarokili, Olga TzakouAbstract:The volatile metabolites of wild-growing Mentha spicata, M. longifolia, M. suaveolens, Melissa officinalis, Salvia fruticosa, S. pomifera subsp. Calycina, and S. pomifera subsp. pomifera from Greece were determined by gas chromatography and gas chromatography–mass spectrometry. The insecticidal properties of the analyzed essential oils were screened on Culex pipiens larvae. Additionally two of the main components of the essential oils, piperitenone oxide and 1,8-cineole were assayed against C. pipiens in order to define the affiliation between them and the larvicidal properties of the oils. The most effective oils were M. suaveolens (major constituent piperitenone oxide, 62.4%), M. spicata (piperitenone oxide, 35.7% and 1,8-cineole, 14.5%) and M. longifolia—Central Greece (piperitenone oxide, 33.4%; 1,8-cineole, 24.5% and trans-piperitone epoxide, 17.4%), which exhibited LC50 values ranging from 47.88 to 59.33 mg l−1. Medium activity revealed the oils of M. officinalis (terpin-4-ol, 15.8%; caryophyllene oxide, 13.2%; sabinene, 12.9%; β-pinene, 12.1%; and trans-caryophyllene, 10.2%), M. longifolia—Southern Greece (carvone, 54.7% and limonene 20.0%), S. pomifera subsp. pomifera (trans-caryophyllene, 22.5% and trans-thujone, 21.0%), S. pomifera subsp. Calycina—West Southern Greece (trans-thujone, 56.1% and 1,8-cineole, 10.4%), and S. fruticosa—population 2 (camphor, 23.1%; α-pinene, 12.7%; and borneol, 12.6%), with LC50 values ranging from 78.28 to 91.45 mg l−1. S. pomifera subsp. Calycina (Central Greece) essential oil (trans-thujone, 26.5% and cis-thujone, 12.0%) presented rather low activity (LC50 values 140.42 mg l−1), while S. fruticosa—population 1 (1,8-cineole, 31.4% and camphor, 22.6%) was the only inactive oil. Additionally, the constituent piperitenone oxide was found to be highly active (LC50 values 9.95 mg l−1), whereas 1,8-cineole revealed no toxicity.
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Chemical composition and larvicidal evaluation of Mentha, Salvia, and Melissa essential oils against the West Nile virus mosquito Culex pipiens
Parasitology research, 2010Co-Authors: George Koliopoulos, E Kioulos, Antonios Michaelakis, Danae Pitarokili, Olga TzakouAbstract:The volatile metabolites of wild-growing Mentha spicata, M. longifolia, M. suaveolens, Melissa officinalis, Salvia fruticosa, S. pomifera subsp. Calycina, and S. pomifera subsp. pomifera from Greece were determined by gas chromatography and gas chromatography-mass spectrometry. The insecticidal properties of the analyzed essential oils were screened on Culex pipiens larvae. Additionally two of the main components of the essential oils, piperitenone oxide and 1,8-cineole were assayed against C. pipiens in order to define the affiliation between them and the larvicidal properties of the oils. The most effective oils were M. suaveolens (major constituent piperitenone oxide, 62.4%), M. spicata (piperitenone oxide, 35.7% and 1,8-cineole, 14.5%) and M. longifolia--Central Greece (piperitenone oxide, 33.4%; 1,8-cineole, 24.5% and trans-piperitone epoxide, 17.4%), which exhibited LC(50) values ranging from 47.88 to 59.33 mg l(-1). Medium activity revealed the oils of M. officinalis (terpin-4-ol, 15.8%; caryophyllene oxide, 13.2%; sabinene, 12.9%; beta-pinene, 12.1%; and trans-caryophyllene, 10.2%), M. longifolia--Southern Greece (carvone, 54.7% and limonene 20.0%), S. pomifera subsp. pomifera (trans-caryophyllene, 22.5% and trans-thujone, 21.0%), S. pomifera subsp. Calycina--West Southern Greece (trans-thujone, 56.1% and 1,8-cineole, 10.4%), and S. fruticosa--population 2 (camphor, 23.1%; alpha-pinene, 12.7%; and borneol, 12.6%), with LC(50) values ranging from 78.28 to 91.45 mg l(-1). S. pomifera subsp. Calycina (Central Greece) essential oil (trans-thujone, 26.5% and cis-thujone, 12.0%) presented rather low activity (LC(50) values 140.42 mg l(-1)), while S. fruticosa--population 1 (1,8-cineole, 31.4% and camphor, 22.6%) was the only inactive oil. Additionally, the constituent piperitenone oxide was found to be highly active (LC(50) values 9.95 mg l(-1)), whereas 1,8-cineole revealed no toxicity.
Kelly Cristiene De Freitas Borges - One of the best experts on this subject based on the ideXlab platform.
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Fruit Coloring and Substrate in Emergence and Growth of Eugenia Calycina Cambess Seedlings
2018Co-Authors: Kelly Cristiene De Freitas Borges, Denise Garcia De Santana, Susana Webber Lopes, Vanderley José PereiraAbstract:ABSTRACT This study aimed to evaluate the influence of fruit coloring in emergence process and growth of Eugenia Calycina Cambess seedlings, as well substrates with different proportions of organic and structuring material. Three experiments were conducted: the first of emergence; the second of plant growth, both with fruits of green color, orange/red, light red and dark red; and the third experiment was conducted to compare five mixture of Bioplant® supplemented with Vermiculita® and coconut i powder n the seedling growth, both in proportion of 20 and 40%. The fruit coloring did not influence the capacity of emergence, time (initial, mean and final), rate and synchrony of emergence of E. Calycina seedlings. The growth of E. Calycina seedlings is independent of fruit color up to 270 days. The Vermiculita® and -coconut powder supplemented by Bioplant® do not improved the plants growth up to 120 days of cultivation.
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coloracao do fruto e substrato na emergencia e no crescimento de plantas de eugenia Calycina cambess
Floresta e Ambiente, 2016Co-Authors: Kelly Cristiene De Freitas Borges, Denise Garcia De Santana, Susana Webber Lopes, Vanderley José PereiraAbstract:O objetivo do trabalho foi avaliar a influencia da coloracao dos frutos na emergencia e no crescimento das plantas de Eugenia Calycina Cambess (pitangueira-do-cerrado), assim como de substratos com diferentes proporcoes de material orgânico e estruturante. Tres experimentos foram instalados: o primeiro de emergencia; o segundo de crescimento de plantas constituidos de sementes provenientes de frutos verdes, alaranjados/avermelhados, vermelho-claros e vermelho-escuros; e o terceiro comparou cinco misturas de Bioplant® suplementado com Vermiculita® e com po-de-coco no crescimento das plantas, ambos nas proporcoes de 20% e 40%. A coloracao do fruto nao influenciou a capacidade de emergencia, tempo (inicio, medio e final), velocidade e sincronia de emergencia das plântulas de E. Calycina. O crescimento das plantas ate 270 dias de cultivo foi independente da coloracao do fruto. A Vermiculita® e o po-de-coco suplementados ao Bioplant® nao afetaram o crescimento das plantas ate os 120 dias de cultivo.
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caracterizacao fisico quimica e produtiva de frutos e sementes e propagacao de eugenia Calycina camb myrtaceae
2016Co-Authors: Kelly Cristiene De Freitas BorgesAbstract:Muitas especies frutiferas nativas do bioma Cerrado apresentam grande potencial alimentar, porem, neste aspecto, ainda foram pouco estudadas. Esta pesquisa teve como objetivo avaliar as caracteristicas fisico-quimica e produtiva de frutos e sementes e propagacao de pitangueira-do-cerrado (Eugenia Calycina), da Reserva Particular do Patrimonio Natural (RPPN) do Clube Caca e Pesca Itororo, municipio de Uberlândia-GO. As leituras para obtencao dos dados fenologicos foram realizadas sempre no segundo decendio de cada mes. A biometria dos frutos e sementes foi realizada em materiais de 50 frutos selecionados coletados em quatro locais distintos na area da RPPN. Foram obtidos o comprimento (mm) e a largura (mm) dos frutos e das sementes utilizando um paquimetro digital, e fez-se a contagem da quantidade de sementes por fruto. O teste de germinacao de sementes consistiu da avaliacao de diversos tipos de substratos (A-tela; B-mata-borrao; C-germitest; D-vermiculita; E-areia), no Laboratorio de Sementes da Escola de Agronomia, Faculdade de Filosofia e Ciencias Humanas de Goiatuba, municipio de Goiatuba, GO. O teste de emergencia de plântulas foi instalado em casa de vegetacao, adotando-se o delineamento de blocos casualizados (DBC), com quatro tratamentos, correspondentes aos diferentes locais de coletas dos frutos (1, 2, 3 e 4), com cinco repeticoes, totalizando 20 parcelas. No ensaio de avaliacao da propagacao vegetativa, adotou-se o delineamento experimental esquema fatorial, com tres tipos de estacas: basal, mediana e apical, e seis tempos diferentes de imersao das estacas no acido Indol-butirico: 0,5 segundo, 15, 30, 45 e 60 segundos), com tres repeticoes e 10 estacas por repeticao. As avaliacoes foram realizadas aos 60 dias apos a instalacao do experimento. Foram coletados 300 gramas de frutos, aleatoriamente, em cada local, identificado segundo as caracteristicas fisicas do solo, considerando a relacao argila/areia nesses locais. As amostras de frutos foram, encaminhadas ao Centro de Pesquisas de Alimentos (CPA), para as analises quimicas. Todos os dados foram submetidos a testes estatisticos, conforme, as caracteristicas dos dados coletados. Em relacao as fenofases, E. Calycina apresenta floracao de agosto a janeiro, com o maior pico de floracao, de 75% e 100% em setembro e outubro, respectivamente. Os frutos apresentaram larguras variando de 6 a 9 mm nos diferentes locais de coleta, e comprimentos de 14 a 30 mm; enquanto que a largura das sementes variou de 5 a 7 mm e o comprimento de 10 a 14 mm. Sementes coletadas em plantas de E. Calycina estabelecidas em solos com diferentes proporcoes de argila e areia, nao apresentam diferencas no seu potencial de propagacao. Os diferentes tempos de imersao e a solucao de AIB na concentracao de 6.000 mg L-¹ nao induziram o enraizamento de estacas de pitangueira-do-cerrado. Os frutos tem importância nutricional pela presenca de teores significativos de minerais que contribuem para a saude humana, como potassio, ferro, manganes, magnesio e alta porcentagem de oBrix. Em relacao aos resultados obtidos neste estudo, recomenda-se a realizacao de novas pesquisas em relacao a especie E. Calycina, urgentemente, pois sua populacao natural tem diminuido em ritmo acelerado.
Danae Pitarokili - One of the best experts on this subject based on the ideXlab platform.
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chemical composition and larvicidal evaluation of mentha salvia and melissa essential oils against the west nile virus mosquito culex pipiens
Parasitology Research, 2010Co-Authors: George Koliopoulos, E Kioulos, Antonios Michaelakis, Danae Pitarokili, Olga TzakouAbstract:The volatile metabolites of wild-growing Mentha spicata, M. longifolia, M. suaveolens, Melissa officinalis, Salvia fruticosa, S. pomifera subsp. Calycina, and S. pomifera subsp. pomifera from Greece were determined by gas chromatography and gas chromatography–mass spectrometry. The insecticidal properties of the analyzed essential oils were screened on Culex pipiens larvae. Additionally two of the main components of the essential oils, piperitenone oxide and 1,8-cineole were assayed against C. pipiens in order to define the affiliation between them and the larvicidal properties of the oils. The most effective oils were M. suaveolens (major constituent piperitenone oxide, 62.4%), M. spicata (piperitenone oxide, 35.7% and 1,8-cineole, 14.5%) and M. longifolia—Central Greece (piperitenone oxide, 33.4%; 1,8-cineole, 24.5% and trans-piperitone epoxide, 17.4%), which exhibited LC50 values ranging from 47.88 to 59.33 mg l−1. Medium activity revealed the oils of M. officinalis (terpin-4-ol, 15.8%; caryophyllene oxide, 13.2%; sabinene, 12.9%; β-pinene, 12.1%; and trans-caryophyllene, 10.2%), M. longifolia—Southern Greece (carvone, 54.7% and limonene 20.0%), S. pomifera subsp. pomifera (trans-caryophyllene, 22.5% and trans-thujone, 21.0%), S. pomifera subsp. Calycina—West Southern Greece (trans-thujone, 56.1% and 1,8-cineole, 10.4%), and S. fruticosa—population 2 (camphor, 23.1%; α-pinene, 12.7%; and borneol, 12.6%), with LC50 values ranging from 78.28 to 91.45 mg l−1. S. pomifera subsp. Calycina (Central Greece) essential oil (trans-thujone, 26.5% and cis-thujone, 12.0%) presented rather low activity (LC50 values 140.42 mg l−1), while S. fruticosa—population 1 (1,8-cineole, 31.4% and camphor, 22.6%) was the only inactive oil. Additionally, the constituent piperitenone oxide was found to be highly active (LC50 values 9.95 mg l−1), whereas 1,8-cineole revealed no toxicity.
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Chemical composition and larvicidal evaluation of Mentha, Salvia, and Melissa essential oils against the West Nile virus mosquito Culex pipiens
Parasitology research, 2010Co-Authors: George Koliopoulos, E Kioulos, Antonios Michaelakis, Danae Pitarokili, Olga TzakouAbstract:The volatile metabolites of wild-growing Mentha spicata, M. longifolia, M. suaveolens, Melissa officinalis, Salvia fruticosa, S. pomifera subsp. Calycina, and S. pomifera subsp. pomifera from Greece were determined by gas chromatography and gas chromatography-mass spectrometry. The insecticidal properties of the analyzed essential oils were screened on Culex pipiens larvae. Additionally two of the main components of the essential oils, piperitenone oxide and 1,8-cineole were assayed against C. pipiens in order to define the affiliation between them and the larvicidal properties of the oils. The most effective oils were M. suaveolens (major constituent piperitenone oxide, 62.4%), M. spicata (piperitenone oxide, 35.7% and 1,8-cineole, 14.5%) and M. longifolia--Central Greece (piperitenone oxide, 33.4%; 1,8-cineole, 24.5% and trans-piperitone epoxide, 17.4%), which exhibited LC(50) values ranging from 47.88 to 59.33 mg l(-1). Medium activity revealed the oils of M. officinalis (terpin-4-ol, 15.8%; caryophyllene oxide, 13.2%; sabinene, 12.9%; beta-pinene, 12.1%; and trans-caryophyllene, 10.2%), M. longifolia--Southern Greece (carvone, 54.7% and limonene 20.0%), S. pomifera subsp. pomifera (trans-caryophyllene, 22.5% and trans-thujone, 21.0%), S. pomifera subsp. Calycina--West Southern Greece (trans-thujone, 56.1% and 1,8-cineole, 10.4%), and S. fruticosa--population 2 (camphor, 23.1%; alpha-pinene, 12.7%; and borneol, 12.6%), with LC(50) values ranging from 78.28 to 91.45 mg l(-1). S. pomifera subsp. Calycina (Central Greece) essential oil (trans-thujone, 26.5% and cis-thujone, 12.0%) presented rather low activity (LC(50) values 140.42 mg l(-1)), while S. fruticosa--population 1 (1,8-cineole, 31.4% and camphor, 22.6%) was the only inactive oil. Additionally, the constituent piperitenone oxide was found to be highly active (LC(50) values 9.95 mg l(-1)), whereas 1,8-cineole revealed no toxicity.
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composition and antifungal activity of the essential oil of salvia pomifera subsp Calycina growing wild in greece
Journal of Essential Oil Research, 1999Co-Authors: Danae Pitarokili, Olga Tzakou, Maria Couladis, Eumorfia VerykokidouAbstract:Abstract The hydrodistilled essential oil of the aerial parts of Salvia pomifera subsp. Calycina was analyzed by GC/MS. Fifty compounds representing 98% of the oil were identified. The main components of the oil were α-thujone (20.3%), β-thujone (36.3%) and myrcene (5.9%). The biostatic activity of the oil was evaluated in vitro against seven fungal strains.
