Carbon isotope composition and leaf anatomy as a tool to characterize the photosynthetic mechanism of Artemisia annua L.

Marchese, José Abramo; Broetto, Fernando; Ming, Lin Chau; Ducatti, Carlos; Rodella, Roberto Antônio; Ventrella, Marília Contin; Gomes, Greice Daiane Rodrigues; Franceschi, Lucia De

doi:10.1590/s1677-04202005000100016

Cited by 14 publications

(11 citation statements)

References 14 publications

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“…By convention, this standard is set to zero, so the amount of carbon measured in plants and animals is expressed as a negative number (Petersen & Fry, 1987). As C 4 plants have more C 13 than C 3 plants, their LC 13 % signature (-15% to -10%) is higher than that of C 3 (-21% to -30%) plants (Cerling, 1999;Marchese et al, 2005), so LC 13 % provides an indirect method for inferring C 4 photosynthesis.…”

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Phylogenetic Relationships Between and within Phacelia Sections Whitlavia and Gymnobythus (Boraginaceae)

Hansen¹,

Spicer²,

Patterson³

2009

Systematic Botany

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confidence: 99%

Phylogenetic Relationships Between and within Phacelia Sections Whitlavia and Gymnobythus (Boraginaceae)

Hansen¹,

Spicer²,

Patterson³

2009

Systematic Botany

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“…al., 2002) e mecanismo fotossintético do tipo C3 (Marchese et al, 2005). A sua reprodução ocorre predominantemente por fecundação cruzada, multiplicando-se por sementes e propagando-se vegetativamente com facilidade (Magalhães et al, 1999).…”

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“…As folhas de A. annua são importante fonte de artemisinina, uma lactona sesquiterpênica eficaz contra cepas resistentes de Plasmodium falciparum causador da malária cerebral (Ferreira & Janick, 1996;Marchese & Rehder, 2001;Marchese et al, 2005), além de ser seletivamente citotóxica para células cancerígenas (Ferreira, 2004;Lai & Singh, 2006;Efferth, 2007;Arsenault et al, 2008;Oh et al, 2009). Por ser aromática, a espécie também é fonte de óleo essencial, comercialmente utilizado em perfumaria e cosméticos (Jain et al, 1996;Magalhães et al, 2004).…”

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“…annua é originária da China (Marchese et al, 2005) e sua introdução no Brasil aconteceu no final da década de 80 a partir de sementes procedentes da Europa e da China (Magalhães, 1996). Entretanto, com a ampla variabilidade existente, os primeiros ensaios apresentaram plantas com crescimento e morfologia heterogêneos, além de baixos rendimentos de artemisinina, aproximadamente 1 kg ha -1 , devido à influência fotoperiódica e o florescimento precoce.…”

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Dissimilaridade genética em variedades de Artemisia annua L. embasada em caracteres agronômicos, fisiológicos e fitoquímicos

Bolina

Marchese

Paladini

et al. 2014

Rev. bras. plantas med.

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Recebido para publicação em 18/05/2012 Aceito para publicação em 20/01/2014 RESUMO: O presente estudo objetivou estimar a variabilidade genética existente entre caracteres agronômicos, fisiológicos e fitoquímicos em variedades de A. annua. O delineamento experimental foi inteiramente casualizado e os tratamentos foram as variedades Artemis, 2/39x5x3M, e 2/39x1V de A. annua, submetidas a avaliações agronômicas, fisiológicas e fitoquímicas. Para a realização das estimativas de distância genética foram geradas matrizes de dissimilaridade utilizando a distância Euclidiana e os métodos de agrupamento de Tocher e UPGMA. Além disso, avaliou-se a importância relativa dos caracteres para divergência genética pelo método de Singh. As análises foram realizadas pelo software Genes e os dendrogramas obtidos pelo NTSYS. A presença de variabilidade genética dentro das variedades permitiu a identificação de acessos dissimilares e com média elevada para as características estudadas. O número de ramificações, concentração intracelular de CO 2, e o rendimento de óleo essencial foram os caracteres que mais contribuíram para a dissimilaridade genética de A. annua. Os acessos B24, C5 e C32 foram os mais promissores dentro das variedades e devem ser conservados para futuras hibridações, sendo que as hibridações mais promissoras na obtenção de populações segregantes desejadas são B24 x C5, B24 x C32 e C5 x C32. Palavras-chave: Artemisinina, Óleo essencial, Variabilidade, Seleção de genitores.ABSTRACT: Genetic dissimilarity in varieties of Artemisia annua L. based on agronomic, physiological and phytochemical characters. This study aimed to estimate the genetic variability among agronomic, physiological, and phytochemical characters in varieties of A. annua. The experimental design was completely randomized and the treatments were the varieties Artemis, 2/39x5x3M and 2/39x1V of A. annua, subject to agronomic, physiological and phytochemical evaluations. To estimate the genetic distances, dissimilarity matrices were generated using the Euclidean distance and the Tocher and UPGMA grouping methods. Moreover, we evaluated the relative importance of the characters for genetic divergence through the method of Singh. The analyses were performed in the Genes software and the dendrograms were obtained from the NTSYS program. The presence of genetic variability within the varieties allowed the identification of dissimilar accessions with high average for all traits. The number of branches, intracellular concentration of CO2 and oil yield were the traits that contributed most to the genetic dissimilarity of A. annua. The accessions B24, C5 and C32 were the most promising within the populations and must be conserved for future crossings, and the most promising crosses to obtain the desired segregant populations were B24 x C5, B24 x C32 and C5 x C32.

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“…A. annua is originally from China and has 13 C‰ values of -31.76, which is typical for a C 3 species. It is cultivated in Brazil, with the best yield of biomass and artemisinin on the Southern portion of that country, where the low temperature allows the decrease of CO 2 losses by photorespiration and good biomass production for C 3 plants (Marchese et al 2005).…”

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Carbon isotope composition as a tool to control the quality of herbs and medicinal plants

Marchese¹,

Ming²,

Ducatti³

et al. 2006

Photosynt.

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Isotope screening is a simple test for determining the photosynthetic pathway used by plants. The scope of this work was to classify the photosynthetic type of some herbs and medicinal plants through studies of the carbon isotope composition ( 13 C). Also, we propose the use of carbon isotope composition as a tool to control the quality of herbs and medicinal plants. For studies of 13 C, 13 C‰ = [R (sample)/R (standard) -1] × 10 -3 , dry leaves powdered in cryogenic mill were analyzed in a mass spectrometer coupled with an elemental analyzer for determining the ratio R = 13 CO 2 / 12 CO 2 . In investigation of 13 C of 55 species, 23 botanical families, and 44 species possessed a C 3 photosynthetic type. Six species found among the botanical families Euphorbiaceae and Poaceae were C 4 plants, and 5 species found among the botanical families Agavaceae, Euphorbiaceae, and Liliaceae possessed CAM-type photosynthesis. Carbon isotope composition of plants can be used as quality control of herbs and medicinal plants, allowing the identification of frauds or contaminations. Also, the information about the photosynthetic type found for these plants can help in introducing and cultivating exotic and wild herbs and medicinal plants.

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Carbon isotope composition and leaf anatomy as a tool to characterize the photosynthetic mechanism of Artemisia annua L.

Cited by 14 publications

References 14 publications

Phylogenetic Relationships Between and within Phacelia Sections Whitlavia and Gymnobythus (Boraginaceae)

Phylogenetic Relationships Between and within Phacelia Sections Whitlavia and Gymnobythus (Boraginaceae)

Dissimilaridade genética em variedades de Artemisia annua L. embasada em caracteres agronômicos, fisiológicos e fitoquímicos

Carbon isotope composition as a tool to control the quality of herbs and medicinal plants

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