scholarly journals Chlorophyll Catabolites in Fall Leaves of the Wych Elm Tree Present a Novel Glycosylation Motif

2016 ◽  
Vol 22 (28) ◽  
pp. 9498-9503 ◽  
Author(s):  
Mathias Scherl ◽  
Thomas Müller ◽  
Christoph R. Kreutz ◽  
Roland G. Huber ◽  
Engelbert Zass ◽  
...  
Keyword(s):  
Chlorophyll Catabolites ◽  
Wych Elm

scholarly journals Non-fluorescent and yellow chlorophyll catabolites in Japanese plum fruits (Prunus salicina, Lindl.)

2017 ◽  
Vol 100 ◽  
pp. 332-338 ◽  
Author(s):  
María Roca ◽  
José Julián Ríos ◽  
Alexandra Chahuaris ◽  
Antonio Pérez-Gálvez
Keyword(s):  
Japanese Plum ◽  
Prunus Salicina ◽  
Chlorophyll Catabolites

scholarly journals Chlorophyll Catabolites in Senescent Leaves of Lima Bean (Phaseolus Lunatus) and in the Frass of Spodoptera Littoralis After Defecation

2021 ◽  
Author(s):  
Amarsanaa Badgaa ◽  
Axel Mithoefer ◽  
Khureldavaa Otgonbayar ◽  
Christian Paetz ◽  
Wilhelm Boland
Keyword(s):  
Spodoptera Littoralis ◽  
Lima Bean ◽  
Phaseolus Lunatus ◽  
Chlorophyll Catabolites

The wych elm

1896 ◽  
Vol s8-IX (227) ◽  
pp. 358-358
Author(s):  
C. C. B.
Keyword(s):  
Wych Elm

The wych elm

1896 ◽  
Vol s8-IX (233) ◽  
pp. 474-474
Author(s):  
C. Tomlinson
Keyword(s):  
Wych Elm

scholarly journals The emission of corrosive vapours by wood. Hot - water - extracted O - acetylated hemicelluloses from sweet chestnut (Castanea sativa) and wych elm (Ulmus glabrau) and a discussion of O-acetyl-group changes occurring in these woods during incubation at 48° and 100% relative humidity

1969 ◽  
Vol 113 (2) ◽  
pp. 253-257
Author(s):  
G. C. Cochrane ◽  
J. D. Gray ◽  
P. C. Arni
Keyword(s):  
Cell Walls ◽  
Castanea Sativa ◽  
Hot Water ◽  
Dimethyl Sulphoxide ◽  
Green Wood ◽  
Sweet Chestnut ◽  
Steric Factors ◽  
Acetyl Group ◽  
The Difference ◽  
Wych Elm

1. O-Acetylated polysaccharides were obtained from green wood of both sweet chestnut and wych elm by treatment of the residue remaining after dimethyl sulphoxide extraction with water at 98°. This gives a mixture of polysaccharides containing xylose, galactose, glucose and uronic acids. Analysis of these and their fractionated products suggest that only xylans in green sweet chestnut and green wych elm are O-acetylated. 2. The isolated O-acetylated xylans are not representative of the total O-acetylated xylans occurring in sweet chestnut and wych elm. 3. Application of the method developed by Bouveng for the location of O-acetyl groups to all four O-acetylated xylans obtained in this series of investigations by dimethyl sulphoxide extraction showed that those from sweet chestnut and wych elm, under the same conditions of incubation, lost: 74·2 and 43·4% of acetyl groups respectively, at C-2; 58·0 and 28·5% of acetyl groups respectively at C-3; 41·8 and 82·2% of acetyl groups respectively at C-2 and C-3. 4. A consideration of electronic and steric factors indicates that there does not appear to be a purely chemical reason for the difference in loss of O-acetyl groups between sweet chestnut and wych elm. It is suggested that the location of O-acetylated xylans in the wood cell walls and the presence of extractive may play some part in this difference.

Zn-complex of a natural yellow chlorophyll catabolite

2016 ◽  
Vol 20 (01n04) ◽  
pp. 388-396 ◽  
Author(s):  
Chengjie Li ◽  
Bernhard Kräutler
Keyword(s):  
Methyl Ester ◽  
Nmr Spectra ◽  
Green Emission ◽  
Bidentate Ligand ◽  
Structural Investigations ◽  
Orange Yellow ◽  
Chlorophyll Catabolites ◽  
Strong Green Emission ◽  
Zn Ions ◽  
Chlorophyll Catabolite

“Non-fluorescent” chlorophyll catabolites (NCCs) were named “rusty pigments” originally, as they easily oxidized to yellow chlorophyll catabolites (YCCs) and other colored natural “phyllobilins.” In the present work, binding of Zn(II)-ions by YCC and its methyl ester YCC-Me, and structural investigations of the resulting Zn(II)-complexes are reported. Binding of Zn-ions to the weakly luminescent YCC or YCC-Me in DMSO produces orange-yellow complexes that exhibit strong green emission. The Zn-complex of YCC-Me was isolated and characterized by UV-vis-, fluorescence-, mass- and NMR-spectra. The data revealed a 2:1 complex, Zn(YCC-Me)[Formula: see text], in which YCC-Me serves as bidentate ligand. The Zn(II)-center in Zn(YCC-Me)[Formula: see text] is, thereby, deduced to be coordinated in a pseudo tetrahedral fashion. Formation of Zn(YCC-Me)[Formula: see text] (and of Zn(YCC)[Formula: see text] is compatible with an isomerization of the lactam form of ring D to the corresponding lactim tautomer in these neutral Zn(II)-complexes.

Photochemical studies of a fluorescent chlorophyll catabolite – source of bright blue fluorescence in plant tissue and efficient sensitizer of singlet oxygen

2014 ◽  
Vol 13 (2) ◽  
pp. 407-411 ◽  
Author(s):  
Steffen Jockusch ◽  
Nicholas J. Turro ◽  
Srinivas Banala ◽  
Bernhard Kräutler
Keyword(s):  
Singlet Oxygen ◽  
Quantum Efficiency ◽  
Plant Tissue ◽  
Blue Fluorescence ◽  
High Quantum Efficiency ◽  
High Quantum ◽  
Chlorophyll Catabolites ◽  
Bright Blue Fluorescence ◽  
Bright Blue ◽  
Chlorophyll Catabolite

Hypermodified fluorescent chlorophyll catabolites, which accumulate in yellow banana peels, show strong blue fluorescence and generate singlet oxygen with high quantum efficiency.

scholarly journals Chlorophyll catabolites in conditioned media of green microalga Desmodesmus subspicatus

2015 ◽  
Vol 28 (2) ◽  
pp. 889-896 ◽  
Author(s):  
Krzysztof Grabski ◽  
Natalia Baranowski ◽  
Joanna Skórko-Glonek ◽  
Zbigniew Tukaj
Keyword(s):  
Conditioned Media ◽  
Desmodesmus Subspicatus ◽  
Green Microalga ◽  
Chlorophyll Catabolites

Accumulation of chlorophyll catabolites photosensitizes the hypersensitive response elicited by Pseudomonas syringae in Arabidopsis

2010 ◽  
Vol 188 (1) ◽  
pp. 161-174 ◽  
Author(s):  
Luis A. J. Mur ◽  
Sylvain Aubry ◽  
Madhav Mondhe ◽  
Alison Kingston-Smith ◽  
Joe Gallagher ◽  
...  
Keyword(s):  
Pseudomonas Syringae ◽  
Hypersensitive Response ◽  
Chlorophyll Catabolites
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