From aerial parts of Lactuca sibirica, two new and one known furofuran lignans were isolated, together with four known lactucin-like guaianolides. On the basis of spectral data, the new lignans were characterized as acylated glucopyranosides of 4alpha, 8alpha-dihydroxypinoresinol.
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Lignans and sesquiterpenoids from Lactuca sibirica.
Fitoterapia
June 2008
Department of Phytochemistry, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland.
From aerial parts of Lactuca sibirica, two new and one known furofuran lignans were isolated, together with four known lactucin-like guaianolides. On the basis of spectral data, the new lignans were characterized as acylated glucopyranosides of 4alpha, 8alpha-dihydroxypinoresinol.
View Article and Find Full Text PDFSpecies relationships in Lactuca s.l. (Lactuceae, Asteraceae) inferred from AFLP fingerprints.
Am J Bot
October 2001
Biosystematics Group, Wageningen University, Generaal Foulkesweg 37, 6703 BL Wageningen, The Netherlands.
An AFLP data set comprising 95 accessions from 20 species of Lactuca s.l. (sensu lato) and related genera was generated using the primer combinations E35/M48 and E35/M49.
View Article and Find Full Text PDFPhylogenetic relationships among Lactuca (Asteraceae) species and related genera based on ITS-1 DNA sequences.
Am J Bot
November 1998
Department of Plant Taxonomy, Wageningen Agricultural University, P.O. Box 8010,6700 ED Wageningen, The Netherlands.
Internal transcribed spacer (ITS-1) sequences from 97 accessions representing 23 species of Lactuca and related genera were determined and used to evaluate species relationships of Lactuca sensu lato (s.l.).
View Article and Find Full Text PDFThe effect and transmission of one isolate of the rust Puccinia minussensis on five clones of Lactuca sibirica.
Oecologia
April 1994
Department of Ecological Botany, University of Umeå, S-90187, Umeå., Sweden.
In a greenhouse experiment, one isolate of the systemic rust fungus Puccinia minussensis was applied to the host clone from which it was collected and to four other clones of the host Lactuca sibirica. The plants were grown in fertilized potting compost (N+) to promote growth and in peat (N-) to hamper growth, for three growing periods during one year. The results show that the expression of host plant resistance could not be determined visually, but there were differences in effects on the clones.
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