M/Z: 612.0871
Hit 3 annotations: (1r,3s,9s,23s,32r)-23,32-dihydroxy-15,19-dimethoxy-28-methyl-6,10,17-trioxa-25,26-dithia-2,28-diazaheptacyclo[22.2.2.1¹,⁴.1²,²⁴.1¹²,¹⁶.1¹⁸,²².0³,⁹]dotriaconta-4,7,12,14,16(31),18(30),19,21-octaene-11,27,29-trione_[M]+; (5r,12s,13s,16s)-12-(4,4-dichloropentyl)-5-hydroxy-16-(2-hydroxypropan-2-yl)-13-methyl-3,11,15-trioxa-7,18-dithia-20,21-diazatricyclo[15.2.1.1⁶,⁹]henicosa-1(19),6(21),8,17(20)-tetraene-2,10,14-trione_[M+NH4]+; dTDP-4-acetamido-4,6-dideoxy-D-galactose_[M+Na]+
- Confirmed: 这个参考离子已经通过手动审计得到确认和验证。
- Reliable: 这个参考离子可能在特定的解剖组织环境中高度保守。
- Unreliable: 这个参考离子具有较高的排名价值，但缺乏可重复性。
- Unavailable: 由于排名价值低且缺乏可重复性，这个参考离子不应用于注释。
Found 2 Reference Ions Near m/z 612.0871
| NovoCell ID | m/z | Mass Window | Metabolite | Ranking | Anatomy Context |
|---|---|---|---|---|---|
| MSI_000053891 Unreliable | 612.0877 | 612.0871 ~ 612.088 MzDiff: 3.6 ppm |
(5r,12s,13s,16s)-12-(4,4-dichloropentyl)-5-hydroxy-16-(2-hydroxypropan-2-yl)-13-methyl-3,11,15-trioxa-7,18-dithia-20,21-diazatricyclo[15.2.1.1⁶,⁹]henicosa-1(19),6(21),8,17(20)-tetraene-2,10,14-trione (BioDeep_00002065618) Formula: C23H28Cl2N2O8S2 (594.0664) |
3.98 (75%) | MALDI - CHCA [NOVOCELL:BACKGROUND] blank |
| MSI_000054873 Unreliable | 612.0881 | 612.0881 ~ 612.0881 MzDiff: none |
dTDP-4-acetamido-4,6-dideoxy-D-galactose (BioDeep_00000007788) Formula: C18H29N3O15P2 (589.1074) |
1.68 (100%) | MALDI - DHB [NOVOCELL:BACKGROUND] blank |
Found 5 Sample Hits
| Metabolite | Species | Sample | |
|---|---|---|---|
| (1r,3s,9s,23s,32r)-23,32-dihydroxy-15,19-dimethoxy-28-methyl-6,10,17-trioxa-25,26-dithia-2,28-diazaheptacyclo[22.2.2.1¹,⁴.1²,²⁴.1¹²,¹⁶.1¹⁸,²².0³,⁹]dotriaconta-4,7,12,14,16(31),18(30),19,21-octaene-11,27,29-trione Formula: C28H24N2O10S2 (612.0872) Adducts: [M]+ (Ppm: 0.7) |
Posidonia oceanica (root) |
20190822_MS1_A19r-19Resolution: 17μm, 303x309
Seagrasses are among the most efficient sinks of carbon dioxide on Earth. While carbon sequestration in terrestrial plants is linked to the microorganisms living in their soils, the interactions of seagrasses with their rhizospheres are poorly understood. Here, we show that the seagrass, Posidonia oceanica excretes sugars, mainly sucrose, into its rhizosphere. These sugars accumulate to µM concentrations—nearly 80 times higher than previously observed in marine environments. This finding is unexpected as sugars are readily consumed by microorganisms. Our experiments indicated that under low oxygen conditions, phenolic compounds from P. oceanica inhibited microbial consumption of sucrose. Analyses of the rhizosphere community revealed that many microbes had the genes for degrading sucrose but these were only expressed by a few taxa that also expressed genes for degrading phenolics. Given that we observed high sucrose concentrations underneath three other species of marine plants, we predict that the presence of plant-produced phenolics under low oxygen conditions allows the accumulation of labile molecules across aquatic rhizospheres. |
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| (5r,12s,13s,16s)-12-(4,4-dichloropentyl)-5-hydroxy-16-(2-hydroxypropan-2-yl)-13-methyl-3,11,15-trioxa-7,18-dithia-20,21-diazatricyclo[15.2.1.1⁶,⁹]henicosa-1(19),6(21),8,17(20)-tetraene-2,10,14-trione Formula: C23H28Cl2N2O8S2 (594.0664) Adducts: [M+NH4]+ (Ppm: 20) |
Posidonia oceanica (root) |
MS1_20180404_PO_1200Resolution: 17μm, 193x208
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| dTDP-4-acetamido-4,6-dideoxy-D-galactose Formula: C18H29N3O15P2 (589.1074) Adducts: [M+Na]+ (Ppm: 13.9) |
Mytilus edulis (mantle) |
20190201_MS38_Crassostrea_Mantle_350-1500_DHB_pos_A28_10um_270x210Resolution: 10μm, 270x210
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| dTDP-4-acetamido-4,6-dideoxy-D-galactose Formula: C18H29N3O15P2 (589.1074) Adducts: [M+Na]+ (Ppm: 14.9) |
Mytilus edulis (gill) |
20190202_MS38_Crassostrea_Gill_350-1500_DHB_pos_A25_11um_305x210Resolution: 11μm, 305x210
single cell layer |
|
| dTDP-4-acetamido-4,6-dideoxy-D-galactose Formula: C18H29N3O15P2 (589.1074) Adducts: [M+Na]+ (Ppm: 15) |
Mytilus edulis (mantle) |
20190216_MS38_Mytilus_mantle_350-1500_DHB_pos_A26_10um_275x210Resolution: 10μm, 275x210
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