Use of gas chromatograms of essential leaf oils to compare clones of Eucalyptus camaldulensis

Dunlop, Peter J.; Bignell, C. M.; Hibbert, David Brynn

doi:10.1016/s0305-1978(99)00067-8

Cited by 23 publications

(15 citation statements)

References 9 publications

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“…The study on E. citriodora was a preliminary experiment conducted on only eight ramets of a single clone, and found the concentration of the total oil and its composition were identical to the 20-year-old ortet (Gupta and Mascarenhas, 1983). The study on E. camaldulensis used 29 ramets in total that were derived from six different clones and despite the low number of ramets in many of clones, also found consistent oil constituent data within each clone, but the small samples of leaves used precluded accurate quantification of oil yields (Dunlop et al, 2000).…”

Section: Discussionmentioning

confidence: 90%

“…clonal heritabilities; Borralho et al, 1992). Only two studies have examined the consistency of oil traits in Eucalyptus clones, one in micropropagated clones of E. citriodora which is commercially harvested for fragrance essential oils (Gupta and Mascarenhas, 1983), and the other in micropropagated clones of E. camaldulensis which is not commercially harvested for essential oils (Dunlop et al, 2000). The study on E. citriodora was a preliminary experiment conducted on only eight ramets of a single clone, and found the concentration of the total oil and its composition were identical to the 20-year-old ortet (Gupta and Mascarenhas, 1983).…”

Section: Discussionmentioning

confidence: 99%

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Selection gains for essential oil traits using micropropagation of Eucalyptus polybractea

Goodger

Woodrow

2008

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Selection gains for essential oil traits using micropropagation of Eucalyptus polybractea

Goodger

Woodrow

2008

Forest Ecology and Management

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“…O conteúdo do óleo, em uma planta, pode variar em função da época do ano e do seu estádio de desenvolvimento (Goralka et al, 1996;Dunlop et al, 2000;Sousa et al, 2005;Carvalho-Filho et al, 2006). Fatores geográfi cos (localização) e ecológicos (habitat) também devem ser considerados (Oliveira et al, 2005).…”

Section: Conclusõesunclassified

Composição química do óleo volátil de Myrcianthes nativas da região sul do Brasil

Apel¹,

Sobral²,

Henriques³

2006

Rev. bras. farmacogn.

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RESUMO:O óleo essencial das folhas de Myrcianthes gigantea (Myrtaceae), coletadas no Rio Grande do Sul, foi obtido por hidrodestilação em Clevenger e analisado por CG/detector de ionização de chamas e CG/EM. Trinta e seis compostos foram identifi cados, totalizando 90,1% do conteúdo do óleo. A composição do óleo demonstrou predominância de sesquiterpenos cíclicos, principalmente da via de ciclização do germacrano, apresentando espatulenol (28,8%) e seu isômero, iso-espatulenol (9,5%), como principais constituintes. A composição do óleo das folhas de M. cisplatensis e M. pungens, coletadas na mesma região, também foi analisada e comparada com estudos prévios reportados para estas espécies coletadas em outros países da América da Sul. O óleo essencial de M. cisplatensis apresentou um alto conteúdo de monoterpenos (56,3%), especialmente das séries pinano e p-mentano, com três compostos majoritários: 1,8-cineol (29,8%), limoneno (10,9%) e α-pineno (8,9%), sendo similar ao reportado. Para o óleo de M. pungens 36 compostos foram identifi cados, porém sem predomínio majoritário, onde β-cariofi leno (10,1%), foi o principal deles. O óleo desta espécie difere do relatado para exemplares coletados na Argentina, rico em monoterpenos, sugerindo uma possível ocorrência de quimiotipos.Unitermos: Myrcianthes gigantea, Myrcianthes pungens, Myrcianthes cisplatensis, Myrtaceae, óleos essenciais, espatulenol, 1,8-cineol, limoneno.ABSTRACT: "Chemical composition of the volatile oils of native Myrcianthes species from South Brazil". The essential oil of Myrcianthes gigantea (Myrtaceae) leaves, which were collected in Rio Grande do Sul (Southern Brazil), was obtained by hydrodistillation in a Clevenger apparatus. The chemical investigation was performed by GC-FID and GC-MS. Thirty-six compounds were identifi ed accounting for 90.1% of the oil content. The analyzed species was rich in cyclic sesquiterpenes, mainly those from the germecrane cyclization pathway, among them spathulenol (28.8%) and its isomer, iso-spathulenol (9.5%). Leaves of M. cisplatensis and M. pungens were also collected in the same region and the analysis of the oil composition was compared with those previously reported for collections from other countries in South America. M. cisplatensis oil showed a high content of monoterpenes (56.3%), specially from the p-mentane and pinane groups, with three major compounds: 1,8-cineole (29.8%), limonene (10.9%) and α-pinene (8.9%). These fi ndings are in agreement with those reported previously. For M. pungens, thirty-six compounds were identifi ed without a predominant component. β-caryophyllene (10.1%), with caryophyllane skeleton, was the main substance for this sample. For this species the oil composition was quite different from those related for two exemplars collected in Argentina, in which both oil were rich in monoterpenes. This result suggests the occurrence of chemotypes.

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“…Results of the study also revealed that E. sideroxylon harvested from Souiniat and Mrifek arboreta, which were characterised by a higher annual raining, higher altitude and by a sandstone soil, produced a higher mean percentage of essential oils relatively to those collected from Jbel Abderrahman and Korbous arboreta, while E. astringens was not affected by the environnemental conditions. These result was confirmed by Dunlop et al (2000) who found that the essential oil yields of some clones of E. camaldulensis was not dependent on the sites at which they were grown but rather on their genetic constitution, however Bhatti et al (2007) reported that E. cerebra essential oil yield varied significantly among different district of PunjabPakistan. The increasing level of essential yield was depend to environnemental conditions such as dry, warm, altitude (Tsiri et al 2003;Arango-Bedoya et al, 2012;Hassiotis et al, 2014).…”

Section: Oil Yieldsmentioning

confidence: 75%

Impact of geographic’s variation on the essential oil yield and chemical composition of three Eucalyptus species acclimated in Tunisia

Elaissi¹,

Medini²,

Zied³

et al. 2015

JEBAS

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Use of gas chromatograms of essential leaf oils to compare clones of Eucalyptus camaldulensis

Cited by 23 publications

References 9 publications

Selection gains for essential oil traits using micropropagation of Eucalyptus polybractea

Selection gains for essential oil traits using micropropagation of Eucalyptus polybractea

Composição química do óleo volátil de Myrcianthes nativas da região sul do Brasil

Impact of geographic’s variation on the essential oil yield and chemical composition of three Eucalyptus species acclimated in Tunisia

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