Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Edmund Cmiel"'
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1228(2-3):235-243
Type I reversible photochemistry of the α-subunit of phycoerythrocyanin (α-PEC) from the cyanobacterium, Mastigocladus laminosus , and of chromopeptides derived from both states, was studied by UV-Vis absorption and 1 H-NMR spectroscopy. (1) Peptic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2e2173a2b78f11ff0f94604ce227614
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1101:321-328
[3-Vinyl]-bacteriochlorophyll a and related pigments modified at C-3 and/or C-13 2 have been synthesized from bacteriochlorophyll a . The reactivity at C-3 is strongly influenced by the C-13 2 substituent, and vice versa. Spectroscopical data and com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d269cd888dd4d540b17370653e2f36f
https://doi.org/10.1016/0005-2728(92)90088-j
https://doi.org/10.1016/0005-2728(92)90088-j
Publikováno v:
Photochemistry and Photobiology. 51:217-222
Irradiation of 20-chloro-chlorophylls of the a-type with visible light produces long-wavelength shifted photoproducts, which transform in the dark to linear tetrapyrroles (bile pigments). The possible significance for chlorophyll degradation is discu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acdf5033b1d7ae437ad8c3890bf7f74c
https://doi.org/10.1111/j.1751-1097.1990.tb01706.x
https://doi.org/10.1111/j.1751-1097.1990.tb01706.x
Publikováno v:
European journal of biochemistry. 219(1-2)
Chlorophyll synthetase catalyzes the last step of chlorophyll biosynthesis, namely prenylation (esterification) of chlorophyllide with phytyl diphosphate or geranylgeranyl diphosphate. During investigation of various chlorophyllide derivatives as pot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83335410b3db738e70d6803ccf8b14db
https://pubmed.ncbi.nlm.nih.gov/8306994
https://pubmed.ncbi.nlm.nih.gov/8306994
Publikováno v:
European journal of biochemistry. 219(1-2)
The mechanism of formation of the formyl group of chlorophyll b has long been obscure but, in this paper, the origin of the 7-formyl-group oxygen of chlorophyll b in higher plants was determined by greening etiolated maize leaves, excised from dark-g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ce39e613ff865cba16e15db42527ab2
https://pubmed.ncbi.nlm.nih.gov/8307032
https://pubmed.ncbi.nlm.nih.gov/8307032
Publikováno v:
FEBS letters. 323(1-2)
Using mass spectroscopy, we demonstrate as much as 93% enrichment of the 7-formyl group oxygen of chlorophyll b when dark-grown, etiolated maize leaves are greened under white light in the presence of 18O2. This suggests that a mono-oxygenase is invo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f54814b310c1da02187d6e07ec8d4089
https://pubmed.ncbi.nlm.nih.gov/8495742
https://pubmed.ncbi.nlm.nih.gov/8495742
During rapid extraction of chlorophylls from maize leaves under reducing conditions with methanol containing NaBH4, chlorophyll a remained unchanged but chlorophyll b yielded [7-hydroxymethyl]-chlorophyll b. The 3-vinyl group of chlorophyll b was als
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b49c2bd9fb1a076c4594573aa9584ed4
Publikováno v:
Current Research in Photosynthesis ISBN: 9789401067164
Chlorophyll (Chl) derivatives are readily and regiospecifically chlorinated at C-20, the free methine-bridge next to the reduced ring D (1–3). The interest in chlorinated chlorophylls has recently been renewed after their isolation from extracts of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b8463cfc15d00f318e39adbf37f9271
https://doi.org/10.1007/978-94-009-0511-5_586
https://doi.org/10.1007/978-94-009-0511-5_586
Publikováno v:
Zeitschrift für Naturforschung C. 40:490-495
The new α-pyrone derivative II was isolated in crystalline form from extracts of dormant seeds of Rosa canina. It inhibits germination of seeds of Amaranthus caudatus completely, but reversibly, at conc. > 2.5 × 10-5 м . Its chemical structure was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7667fc58f47ca05849b24b62006f49c5
https://doi.org/10.1515/znc-1985-7-806
https://doi.org/10.1515/znc-1985-7-806
Publikováno v:
Journal of Labelled Compounds and Radiopharmaceuticals. 24:623-630
A new synthesis of [15N-, 5,4- 13C]-aminolevulinic acid (ALA) starting from amorphous 13C is described. NMR-spectroscopic data (1H, 13C, 15N) of the product are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bd9e8c3794df128684f2d8b52e427ac
https://doi.org/10.1002/jlcr.2580240603
https://doi.org/10.1002/jlcr.2580240603