Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Jürgen Polster"'
Publikováno v:
Journal of Applied Botany and Food Quality, Vol 86, Iss 1 (2013)
Flavanols as a small subclass of the flavonoids stain selectively blue with the special reagent p-dimethylaminocinnamaldehyde (DMACA). Because of the prominent blue colour it is easy to recognize the flavanols histochemically in the vacuoles of expan
Externí odkaz:
https://doaj.org/article/4a416d79735245c9a660d78494b094c7
Publikováno v:
Plant Biology. 15:462-470
Normally, needles of Taxus baccata during the growth period prominently stain blue for nuclear flavanols with the histochemical DMACA procedure. However, under excess heat and drought conditions, nuclear flavanols of current-year needles decline to z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8058ea32286cdfc0042acf5acd5c282e
https://doi.org/10.1111/j.1438-8677.2012.00661.x
https://doi.org/10.1111/j.1438-8677.2012.00661.x
Publikováno v:
Trees. 26:1413-1425
This review presents a new conceptual model for the involvement of low molecular flavanols in chromatin remodelling and genome organization. The experiments are based on the property of flavanols to associate with nuclei as revealed by blue staining
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1444835a50bc83b51bf8151f6d216cd1
https://doi.org/10.1007/s00468-012-0725-4
https://doi.org/10.1007/s00468-012-0725-4
Publikováno v:
Tree Physiology. 28:1783-1791
The nuclear localization of blue-staining flavanols was investigated histochemically throughout microsporogenesis in yellow cypress (Callitropsis nootkatensis (D. Don) Oerst., formerly Cupressus nootkatensis), juniper (Juniperus communis L.) and yew
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c23d0ffdc6ab3405ccdb4ce6edee74b
https://doi.org/10.1093/treephys/28.12.1783
https://doi.org/10.1093/treephys/28.12.1783
Publikováno v:
International Journal of Molecular Sciences
Volume 8
Issue 7
Pages 635-650
International Journal of Molecular Sciences, Vol 8, Iss 7, Pp 635-650 (2007)
Volume 8
Issue 7
Pages 635-650
International Journal of Molecular Sciences, Vol 8, Iss 7, Pp 635-650 (2007)
Nuclei of hemlock (Tsuga canadensis and Tsuga canadensis var. nana) were investigated for the presence of flavanols. Histochemical staining with p-dimethylaminocinnamaldehyde proved to be a highly valuable method yielding a bright blue flavanol color
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee6e83561e25eb04d3911fc5d3b69b1e
https://doi.org/10.3390/i8070635
https://doi.org/10.3390/i8070635
Publikováno v:
Physiologia Plantarum. 128:163-174
Previous studies in our laboratory have indicated that the nuclei of a number of trees are associated with flavonoids, especially flavan--3--ols. In the present study, three techniques were applied to verify that flavonoids are naturally incorporated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3804d445888bcf1af9bbe3ff502ab33c
https://doi.org/10.1111/j.1399-3054.2006.00721.x
https://doi.org/10.1111/j.1399-3054.2006.00721.x
Publikováno v:
Zeitschrift für Naturforschung C. 54:942-945
Internode explants of grape vine were used to produce proliferating callus cells in vitro. The tissues were grown on a modified M/S -medium supplemented with different concentrations of boron (H3BO3) in the range of 0 to 600 μᴍ and aluminium (Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::300435cd9325eb258bcc99bf0d6435fd
https://doi.org/10.1515/znc-1999-1114
https://doi.org/10.1515/znc-1999-1114
Autor:
Markus Wollenweber, Jürgen Polster
Publikováno v:
Journal of Biochemical and Biophysical Methods. 41:1-11
Transient diffuse reflectance spectra in the visible wavelength region from an enzyme optode were evaluated to determine artificial mixtures consisting of penicillin and ampicillin simultaneously. In order to achieve a discrimination of the samples t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6c6e0ddaae0ddfcf04cb2076ba98559
https://doi.org/10.1016/s0165-022x(99)00031-7
https://doi.org/10.1016/s0165-022x(99)00031-7
Publikováno v:
Journal of Chromatography A. 800:121-133
Simple methods for peak purity analysis in chromatography are proposed for accurately assaying the chromatographic or electrophoretic process by spectroscopy. With these methods, the purity at each point of a chromatographic peak containing an unknow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8467f0ac54f24915e834b18bdec2f718
https://doi.org/10.1016/s0021-9673(97)01132-1
https://doi.org/10.1016/s0021-9673(97)01132-1