Flavonoid patterns in the Koeleria cristata species complex

Rolly, Bernard; Jay, Maurice; Bajon, Robert

doi:10.1016/0031-9422(88)87038-9

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…Flavonoid patterns were determined for 172 individuals representative of five cytotypes and 67 populations of K. macrantha by Rolly et al . (1988).…”

Section: Structure and Physiologymentioning

confidence: 99%

Koeleria macrantha (Ledeb.) Schultes (K. alpigena Domin, K. cristata (L.) Pers. pro parte, K. gracilis Pers., K. albescens auct. non DC.)

Dixon

2000

Journal of Ecology

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“…Flavonoid patterns were determined for 172 individuals representative of five cytotypes and 67 populations of K. macrantha by Rolly et al . (1988).…”

Section: Structure and Physiologymentioning

confidence: 99%

Koeleria macrantha (Ledeb.) Schultes (K. alpigena Domin, K. cristata (L.) Pers. pro parte, K. gracilis Pers., K. albescens auct. non DC.)

Dixon

2000

Journal of Ecology

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“…O perfil metabólico em plantas também varia de indivíduo para indivíduo dentro de uma mesma espécie (variabilidade intraespecífica). Há exemplos de variações deste tipo dentro de muitas classes de metabólitos secundários conhecidos: alcanos lineares (Smith e Martin-Smith, 1978), monoterpenos (Gerhold e Plank, 1970;Thompson et al, 2003;Ianson et al, 2005), sesquiterpenos (Curado et al, 2006), diterpenos (Bergstrom, 1992), lactonas sesquiterpênicas (Gershenzon e Mabry, 1984;Spring, 1991), esteróis e triterpenos pentacíclicos (Heupel, 1985), benzenóides (Dötterl et al, 2005), flavonóides (Rolly et al, 1988), alcalóides (Berkov et al, 2004). Fenólicos e taninos são as classes de compostos cuja variação é a mais extensamente estudada, já que o teor de fenólicos é usado como indicativo da quantidade de nitrogênio disponível no solo e da presença/ausência de compostos anti-herbivoria.…”

Section: Variações Intraespecíficasunclassified

Variações diárias, sazonais e intraespecíficas em Piper solmsianum

Amaral¹

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The crude extracts of seven individuals of Piper solmsianum collected in different places were analyzed by high efficiency liquid chromatography (HPLC) in order to determine changes in the relative content of apiol, dillapiol, myristicin, grandisin, elemicin, isoelemicin, and tetrahydrofuran lignan rel-(7R,8R,7′R,8′R)-3,4,3′,4′dimethylenedioxy-5,5′-dimethoxy-7,7′-epoxylignan. All chromatographic profiles consisted of two, three or four major peaks with significant qualitative and quantitative differences. Major components were different from plant to plant and in one specimen an component different from the seven metabolites observed in most cases. The leaf extracts from three wild specimens of P. solmsianum collected at CUASO Reserve, showed annual and diurnal variations in apiol/dillapiol and grandisin relative concentrations. Three plants presented circadian variation with maximum content of grandisin late afternoon, and minimum content in the dawn. Apiol/dillapiol displayed clear circadian variation in two individuals, but without synchrony between phases. The maximum content was observed and in a second specimen around 8 p.m., and in the another specimen, the maximum content occur was observed at 5 a.m. The seasonal variation showed small amplitude of oscillation and in two individuals the maxima contents of apiol/dillapiol and grandisin were observed in summer.

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