Diploschistesic acid
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| Category | Others |
| Catalog number | BBF-05441 |
| CAS | 537-08-6 |
| Molecular Weight | 334.28 |
| Molecular Formula | C16H14O8 |
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Specification
| Synonyms | 2,3,4-Trihydroxy-6-methylbenzoic acid 4-carboxy-3-hydroxy-5-methylphenyl ester; Benzoic acid, 2,3,4-trihydroxy-6-methyl-, 4-carboxy-3-hydroxy-5-methylphenyl ester |
| IUPAC Name | 2-hydroxy-6-methyl-4-(2,3,4-trihydroxy-6-methylbenzoyl)oxybenzoic acid |
| Canonical SMILES | CC1=CC(=CC(=C1C(=O)O)O)OC(=O)C2=C(C(=C(C=C2C)O)O)O |
| InChI | InChI=1S/C16H14O8/c1-6-3-8(5-9(17)11(6)15(21)22)24-16(23)12-7(2)4-10(18)13(19)14(12)20/h3-5,17-20H,1-2H3,(H,21,22) |
| InChI Key | UPYXFRYWDWLGRX-UHFFFAOYSA-N |
Reference Reading
1. Do secondary substances in the thallus of a lichen promote CO2 diffusion and prevent depression of net photosynthesis at high water content?
O L Lange, T G A Green, H Reichenberger, S Hesbacher, P Proksch Oecologia. 1997 Sep;112(1):1-3. doi: 10.1007/s004420050275.
Many lichens show seriously depressed net photosynthesis (NP) at high thallus water contents due to increased carbon dioxide diffusion resistance through blockage of diffusion pathways by water. The soil lichen Diploschistes muscorum, however, shows no depression and NP is close to maximal even at the highest thallus water content. We investigated whether lichen substances (lecanoric and diploschistesic acids) in the cortex and medulla contributed to this ability to maintain high NP. Dry thalli were extracted with water-free acetone and, after this treatment, were found to be fully viable to the extent of continued growth after replanting in the field. No differences were found in the response of NP to thallus water content between the normal and extracted thalli, in fact the response curves were often nearly identical. Thus, in this species it seems that lichen substances did not maintain the water-free diffusion pathways and some other explanation, possibly structural, needs to be sought.
2. Lichen biodeterioration of the Convento de la Peregrina, Sahagún, Spain
H G Edwards, F R Perez Biospectroscopy. 1999;5(1):47-52. doi: 10.1002/(SICI)1520-6343(1999)5:13.0.CO;2-1.
Lichen encrustations from Diploschistes scruposus involved in the biodeterioration of the 13th Century Convento de la Peregrina in Sahagún Spain, have been analyzed using Raman spectroscopy. The vibrational spectra are characteristic of calcium oxalate monohydrate, beta-carotene, chlorophyll, and para-depside phenolic acids such as atranorin, lecanoric acid, and diploschistesic acid. The destructive colonization of the monumental stonework is highlighted and evidence presented for deleterious lichen invasion of the wall paintings inside the Convent.
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Bio Calculators
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Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
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