Format
Sort by
Items per page

Send to

Choose Destination

Search results

Items: 1 to 50 of 73

1.

Cuticular hydrocarbons as potential mediators of cryptic species divergence in a mutualistic ant association.

Hartke J, Sprenger PP, Sahm J, Winterberg H, Orivel J, Baur H, Beuerle T, Schmitt T, Feldmeyer B, Menzel F.

Ecol Evol. 2019 Jul 21;9(16):9160-9176. doi: 10.1002/ece3.5464. eCollection 2019 Aug.

2.

Cinnamate:CoA-ligase is involved in benzoate-derived biphenyl phytoalexin biosynthesis in Malus × domestica 'Golden Delicious' cell cultures.

Teotia D, Gaid M, Saini SS, Verma A, Yennamalli RM, Khare SP, Ambatipudi K, Mir JI, Beuerle T, Hänsch R, Roy P, Agrawal PK, Beerhues L, Sircar D.

Plant J. 2019 Aug 22. doi: 10.1111/tpj.14506. [Epub ahead of print]

PMID:
31437324
3.

A validated HPTLC method for the simultaneous quantifications of three phenolic acids and three withanolides from Withania somnifera plants and its herbal products.

Tomar V, Beuerle T, Sircar D.

J Chromatogr B Analyt Technol Biomed Life Sci. 2019 Aug 15;1124:154-160. doi: 10.1016/j.jchromb.2019.06.009. Epub 2019 Jun 6.

PMID:
31200247
4.

HILIC HPLC-ESI-MS/MS identification and quantification of the alkaloids from the genus Equisetum.

Tipke I, Bücker L, Middelstaedt J, Winterhalter P, Lubienski M, Beuerle T.

Phytochem Anal. 2019 May 22. doi: 10.1002/pca.2840. [Epub ahead of print]

PMID:
31115949
5.

Quantitative and qualitative analysis of pyrrolizidine alkaloids in liqueurs, elixirs and herbal juices.

Chmit MS, Wahrig B, Beuerle T.

Fitoterapia. 2019 Jul;136:104172. doi: 10.1016/j.fitote.2019.104172. Epub 2019 May 14.

PMID:
31100438
6.

Identification and quantification of synthetic cannabinoids in 'spice-like' herbal mixtures: Update of the German situation in summer 2018.

Ernst L, Langer N, Bockelmann A, Salkhordeh E, Beuerle T.

Forensic Sci Int. 2019 Jan;294:96-102. doi: 10.1016/j.forsciint.2018.11.001. Epub 2018 Nov 15.

PMID:
30497049
7.

Uncertainties in the determination of pyrrolizidine alkaloid levels in naturally contaminated honeys and comparison of results obtained by different analytical approaches.

Gottschalk C, Huckauf A, Dübecke A, Kaltner F, Zimmermann M, Rahaus I, Beuerle T.

Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2018 Jul;35(7):1366-1383. doi: 10.1080/19440049.2018.1468929. Epub 2018 Jun 7.

PMID:
29718760
8.

Incidence of Pyrrolizidine Alkaloids in Herbal Medicines from German Retail Markets: Risk Assessments and Implications to Consumers.

Letsyo E, Jerz G, Winterhalter P, Lindigkeit R, Beuerle T.

Phytother Res. 2017 Dec;31(12):1903-1909. doi: 10.1002/ptr.5935. Epub 2017 Sep 28.

PMID:
28960556
9.

Determination of cross-reactivity of poly- and monoclonal antibodies for synthetic cannabinoids by direct SPR and ELISA.

Langer N, Steinicke F, Lindigkeit R, Ernst L, Beuerle T.

Forensic Sci Int. 2017 Nov;280:25-34. doi: 10.1016/j.forsciint.2017.09.011. Epub 2017 Sep 18.

PMID:
28942375
10.

Pyrrolizidine alkaloids in floral honeys of tropical Ghana: a health risk assessment.

Letsyo E, Jerz G, Winterhalter P, Dübecke A, von der Ohe W, von der Ohe K, Beuerle T.

Food Addit Contam Part B Surveill. 2017 Dec;10(4):300-310. doi: 10.1080/19393210.2017.1354336. Epub 2017 Jul 16.

PMID:
28701074
11.

Identification and quantification of synthetic cannabinoids in 'spice-like' herbal mixtures: Update of the German situation in early 2017.

Ernst L, Brandhorst K, Papke U, Altrogge A, Zodel S, Langer N, Beuerle T.

Forensic Sci Int. 2017 Aug;277:51-58. doi: 10.1016/j.forsciint.2017.05.019. Epub 2017 May 26.

PMID:
28601726
12.

Toxic pyrrolizidine alkaloids in herbal medicines commonly used in Ghana.

Letsyo E, Jerz G, Winterhalter P, Beuerle T.

J Ethnopharmacol. 2017 Apr 18;202:154-161. doi: 10.1016/j.jep.2017.03.008. Epub 2017 Mar 8.

PMID:
28284793
13.

Identification and quantification of synthetic cannabinoids in "spice-like" herbal mixtures: Update of the German situation for the spring of 2016.

Langer N, Lindigkeit R, Schiebel HM, Papke U, Ernst L, Beuerle T.

Forensic Sci Int. 2016 Dec;269:31-41. doi: 10.1016/j.forsciint.2016.10.023. Epub 2016 Nov 4.

PMID:
27863282
14.

Bifunctional CYP81AA proteins catalyse identical hydroxylations but alternative regioselective phenol couplings in plant xanthone biosynthesis.

El-Awaad I, Bocola M, Beuerle T, Liu B, Beerhues L.

Nat Commun. 2016 May 5;7:11472. doi: 10.1038/ncomms11472.

15.

Development and Validation of a New HPLC Method for the Determination of Biphenyl and Dibenzofuran Phytoalexins in Rosaceae.

Teotia D, Saini SS, Gaid M, Beuerle T, Beerhues L, Sircar D.

J Chromatogr Sci. 2016 Jul;54(6):918-22. doi: 10.1093/chromsci/bmw019. Epub 2016 Feb 26.

PMID:
26921892
16.

Survey of pyrrolizidine alkaloids in seven varieties of Lappula squarrosa: An alternative source of heart-healthy vegetable oil.

Letsyo E, Jerz G, Winterhalter P, Horn G, Beuerle T.

Phytochem Anal. 2016 Mar-Apr;27(2):133-9. doi: 10.1002/pca.2608.

PMID:
26895990
17.

Hyperforin production in Hypericum perforatum root cultures.

Gaid M, Haas P, Beuerle T, Scholl S, Beerhues L.

J Biotechnol. 2016 Mar 20;222:47-55. doi: 10.1016/j.jbiotec.2016.02.016. Epub 2016 Feb 10.

PMID:
26876610
18.

Molecular Cloning and Characterization of a Xanthone Prenyltransferase from Hypericum calycinum Cell Cultures.

Fiesel T, Gaid M, Müller A, Bartels J, El-Awaad I, Beuerle T, Ernst L, Behrends S, Beerhues L.

Molecules. 2015 Aug 27;20(9):15616-30. doi: 10.3390/molecules200915616.

19.

Single cell subtractive transcriptomics for identification of cell-specifically expressed candidate genes of pyrrolizidine alkaloid biosynthesis.

Sievert C, Beuerle T, Hollmann J, Ober D.

Phytochemistry. 2015 Sep;117:17-24. doi: 10.1016/j.phytochem.2015.05.003. Epub 2015 Jun 5.

PMID:
26057225
20.

O-Methyltransferases involved in biphenyl and dibenzofuran biosynthesis.

Khalil MN, Brandt W, Beuerle T, Reckwell D, Groeneveld J, Hänsch R, Gaid MM, Liu B, Beerhues L.

Plant J. 2015 Jul;83(2):263-76. doi: 10.1111/tpj.12885. Epub 2015 Jun 25.

21.

Pyrrolizidine alkaloids in herbal teas for infants, pregnant or lactating women.

Mädge I, Cramer L, Rahaus I, Jerz G, Winterhalter P, Beuerle T.

Food Chem. 2015 Nov 15;187:491-8. doi: 10.1016/j.foodchem.2015.04.067. Epub 2015 Apr 22.

PMID:
25977055
22.

Shoot cultures of Hoppea fastigiata (Griseb.) C.B. Clarke as potential source of neuroprotective xanthones.

Moon UR, Sircar D, Barthwal R, Sen SK, Beuerle T, Beerhues L, Mitra A.

J Nat Med. 2015 Jul;69(3):375-86. doi: 10.1007/s11418-015-0904-x. Epub 2015 Apr 22.

PMID:
25900046
23.

Biphenyl 4-Hydroxylases Involved in Aucuparin Biosynthesis in Rowan and Apple Are Cytochrome P450 736A Proteins.

Sircar D, Gaid MM, Chizzali C, Reckwell D, Kaufholdt D, Beuerle T, Broggini GA, Flachowsky H, Liu B, Hänsch R, Beerhues L.

Plant Physiol. 2015 Jun;168(2):428-42. doi: 10.1104/pp.15.00074. Epub 2015 Apr 10.

24.

Structural and quantitative analysis of Equisetum alkaloids.

Cramer L, Ernst L, Lubienski M, Papke U, Schiebel HM, Jerz G, Beuerle T.

Phytochemistry. 2015 Aug;116:269-282. doi: 10.1016/j.phytochem.2015.03.003. Epub 2015 Mar 27.

PMID:
25823584
25.

Pyrrolizidine alkaloids in the food chain: development, validation, and application of a new HPLC-ESI-MS/MS sum parameter method.

Cramer L, Schiebel HM, Ernst L, Beuerle T.

J Agric Food Chem. 2013 Nov 27;61(47):11382-91. doi: 10.1021/jf403647u. Epub 2013 Nov 19.

PMID:
24245544
26.

Biosynthesis of the biphenyl phytoalexin aucuparin in Sorbus aucuparia cell cultures treated with Venturia inaequalis.

Khalil MN, Beuerle T, Müller A, Ernst L, Bhavanam VB, Liu B, Beerhues L.

Phytochemistry. 2013 Dec;96:101-9. doi: 10.1016/j.phytochem.2013.09.003. Epub 2013 Sep 24.

PMID:
24074553
27.

Crematoenones - a novel substance class exhibited by ants functions as appeasement signal.

Menzel F, Blüthgen N, Tolasch T, Conrad J, Beifuß U, Beuerle T, Schmitt T.

Front Zool. 2013 Jun 6;10(1):32. doi: 10.1186/1742-9994-10-32.

28.

Identification and quantification of synthetic cannabinoids in 'spice-like' herbal mixtures: a snapshot of the German situation in the autumn of 2012.

Langer N, Lindigkeit R, Schiebel HM, Ernst L, Beuerle T.

Drug Test Anal. 2014 Jan-Feb;6(1-2):59-71. doi: 10.1002/dta.1499. Epub 2013 May 30.

PMID:
23723183
29.

In vitro formation of the anthranoid scaffold by cell-free extracts from yeast-extract-treated Cassia bicapsularis cell cultures.

Abdel-Rahman IA, Beuerle T, Ernst L, Abdel-Baky AM, Desoky Eel-D, Ahmed AS, Beerhues L.

Phytochemistry. 2013 Apr;88:15-24. doi: 10.1016/j.phytochem.2013.01.001. Epub 2013 Feb 8.

PMID:
23395285
30.

Detection and quantification of pyrrolizidine alkaloids in antibacterial medical honeys.

Cramer L, Beuerle T.

Planta Med. 2012 Dec;78(18):1976-82. doi: 10.1055/s-0032-1327900. Epub 2012 Nov 16.

PMID:
23161425
31.

Cinnamate:CoA ligase initiates the biosynthesis of a benzoate-derived xanthone phytoalexin in Hypericum calycinum cell cultures.

Gaid MM, Sircar D, Müller A, Beuerle T, Liu B, Ernst L, Hänsch R, Beerhues L.

Plant Physiol. 2012 Nov;160(3):1267-80. doi: 10.1104/pp.112.204180. Epub 2012 Sep 19.

32.

Synthetic cannabinoids in "spice-like" herbal blends: first appearance of JWH-307 and recurrence of JWH-018 on the German market.

Ernst L, Krüger K, Lindigkeit R, Schiebel HM, Beuerle T.

Forensic Sci Int. 2012 Oct 10;222(1-3):216-22. doi: 10.1016/j.forsciint.2012.05.027. Epub 2012 Jun 28.

PMID:
22748479
33.

Analysis of synthetic cannabinoids in "spice-like" herbal highs: snapshot of the German market in summer 2011.

Simolka K, Lindigkeit R, Schiebel HM, Papke U, Ernst L, Beuerle T.

Anal Bioanal Chem. 2012 Jul;404(1):157-71. doi: 10.1007/s00216-012-6122-4. Epub 2012 Jun 19.

PMID:
22710567
34.

Turning the 'mustard oil bomb' into a 'cyanide bomb': aromatic glucosinolate metabolism in a specialist insect herbivore.

Stauber EJ, Kuczka P, van Ohlen M, Vogt B, Janowitz T, Piotrowski M, Beuerle T, Wittstock U.

PLoS One. 2012;7(4):e35545. doi: 10.1371/journal.pone.0035545. Epub 2012 Apr 20.

35.

Formation of biphenyl and dibenzofuran phytoalexins in the transition zones of fire blight-infected stems of Malus domestica cv. 'Holsteiner Cox' and Pyrus communis cv. 'Conference'.

Chizzali C, Khalil MN, Beuerle T, Schuehly W, Richter K, Flachowsky H, Peil A, Hanke MV, Liu B, Beerhues L.

Phytochemistry. 2012 May;77:179-85. doi: 10.1016/j.phytochem.2012.01.023. Epub 2012 Feb 27.

PMID:
22377689
36.

Independent recruitment of a flavin-dependent monooxygenase for safe accumulation of sequestered pyrrolizidine alkaloids in grasshoppers and moths.

Wang L, Beuerle T, Timbilla J, Ober D.

PLoS One. 2012;7(2):e31796. doi: 10.1371/journal.pone.0031796. Epub 2012 Feb 20.

37.

Identification and characterization of JWH-122 used as new ingredient in "Spice-like" herbal incenses.

Ernst L, Schiebel HM, Theuring C, Lindigkeit R, Beuerle T.

Forensic Sci Int. 2011 May 20;208(1-3):e31-5. doi: 10.1016/j.forsciint.2011.03.020. Epub 2011 Apr 8.

PMID:
21482054
38.

4-Coumarate:CoA ligase family members from elicitor-treated Sorbus aucuparia cell cultures.

Gaid MM, Scharnhop H, Ramadan H, Beuerle T, Beerhues L.

J Plant Physiol. 2011 Jun 15;168(9):944-51. doi: 10.1016/j.jplph.2010.11.021. Epub 2011 Feb 18.

PMID:
21330005
39.

Cinnamyl alcohols and methyl esters of fatty acids from Wedelia prostrata callus cultures.

El-Mawla AM, Farag SF, Beuerle T.

Nat Prod Res. 2011 Jan;25(1):45-52. doi: 10.1080/14786419.2010.482937.

PMID:
21240761
40.

Pyrrolizidine alkaloids in honey: comparison of analytical methods.

Kempf M, Wittig M, Reinhard A, von der Ohe K, Blacquière T, Raezke KP, Michel R, Schreier P, Beuerle T.

Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2011 Mar;28(3):332-47. doi: 10.1080/19440049.2010.521772. Epub 2010 Nov 12.

PMID:
21082464
41.

Pyrrolizidine alkaloids in food: downstream contamination in the food chain caused by honey and pollen.

Kempf M, Wittig M, Schönfeld K, Cramer L, Schreier P, Beuerle T.

Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2011 Mar;28(3):325-31. doi: 10.1080/19440049.2010.521771. Epub 2010 Oct 20.

PMID:
20967664
42.

Differential effect of elicitors on biphenyl and dibenzofuran formation in Sorbus aucuparia cell cultures.

Hüttner C, Beuerle T, Scharnhop H, Ernst L, Beerhues L.

J Agric Food Chem. 2010 Nov 24;58(22):11977-84. doi: 10.1021/jf1026857. Epub 2010 Oct 20.

PMID:
20961041
43.

Pyrrolizidine alkaloids (PAs) in honey and pollen-legal regulation of PA levels in food and animal feed required.

Kempf M, Reinhard A, Beuerle T.

Mol Nutr Food Res. 2010 Jan;54(1):158-68. doi: 10.1002/mnfr.200900529. Review.

PMID:
20013889
44.

Pyrrolizidine alkaloids in pollen and pollen products.

Kempf M, Heil S, Hasslauer I, Schmidt L, von der Ohe K, Theuring C, Reinhard A, Schreier P, Beuerle T.

Mol Nutr Food Res. 2010 Feb;54(2):292-300. doi: 10.1002/mnfr.200900289.

PMID:
20013884
45.

Feeding deterrence and detrimental effects of pyrrolizidine alkaloids fed to honey bees (Apis mellifera).

Reinhard A, Janke M, von der Ohe W, Kempf M, Theuring C, Hartmann T, Schreier P, Beuerle T.

J Chem Ecol. 2009 Sep;35(9):1086-95. doi: 10.1007/s10886-009-9690-9. Epub 2009 Sep 24.

PMID:
19777310
46.

A novel 4-hydroxycoumarin biosynthetic pathway.

Liu B, Raeth T, Beuerle T, Beerhues L.

Plant Mol Biol. 2010 Jan;72(1-2):17-25. doi: 10.1007/s11103-009-9548-0. Epub 2009 Sep 15.

PMID:
19757094
47.

A single amino acid substitution converts benzophenone synthase into phenylpyrone synthase.

Klundt T, Bocola M, Lütge M, Beuerle T, Liu B, Beerhues L.

J Biol Chem. 2009 Nov 6;284(45):30957-64. doi: 10.1074/jbc.M109.038927. Epub 2009 Aug 26.

48.

Spice: a never ending story?

Lindigkeit R, Boehme A, Eiserloh I, Luebbecke M, Wiggermann M, Ernst L, Beuerle T.

Forensic Sci Int. 2009 Oct 30;191(1-3):58-63. doi: 10.1016/j.forsciint.2009.06.008. Epub 2009 Jul 8.

PMID:
19589652
49.

Homospermidine in transgenic tobacco results in considerably reduced spermidine levels but is not converted to pyrrolizidine alkaloid precursors.

Abdelhady MI, Beuerle T, Ober D.

Plant Mol Biol. 2009 Sep;71(1-2):145-55. doi: 10.1007/s11103-009-9514-x. Epub 2009 Jun 21.

PMID:
19543980
50.

Benzaldehyde dehydrogenase from chitosan-treated Sorbus aucuparia cell cultures.

Gaid MM, Sircar D, Beuerle T, Mitra A, Beerhues L.

J Plant Physiol. 2009 Sep 1;166(13):1343-9. doi: 10.1016/j.jplph.2009.03.003. Epub 2009 May 1.

PMID:
19409654

Supplemental Content

Loading ...
Support Center