Tentoxin from Alternaria tenuis
SIGMA/T8019 - Naturally occurring phytotoxic cyclic tetrapeptide
CAS Number: 28540-82-1
Empirical Formula (Hill Notation): C22H30N4O4
Molecular Weight: 414.50
MDL Number: MFCD00133844
Linear Formula: C22H30N4O4
Product Type: Chemical
assay | ≥95% (HPLC) |
biological source | fungus (Alternaria tenuis) |
InChI | 1S/C22H30N4O4/c1-14(2)11- |
InChI key | SIIRBDOFKDACOK-LFXZBHHUSA |
Quality Level | 200 |
SMILES string | CC(C)CC1NC(=O)C(C)N(C)C(= |
storage temp. | 2-8°C |
Biochem/physiol Actions: | It induces chlorosis in germinating seedlings of many dicotyledonous plants. Tentoxin has been postulated to inhibit cyclic photophosphorylation by acting as an energy transfer inhibitor at the terminal steps of ATP synthesis and to target the F1 moiety of photosynthetic H+-ATPases. A kinetic analysis of the action of tentoxin on the chloroplast F1 H+-ATPase (CF1) portion of chloroplast ATP synthase has been reported. |
Biochem/physiol Actions: | Tentoxin is phytotoxic, which induces chlorosis in plant leaves and germinating seedlings. It also halts photophosphorylation by inhibiting chloroplastic ATP synthase. Tentoxin over energizes thylakoids and is converted to isotentoxin by UV irradiation. |
General description: | Tentoxin is a majorly occurring cyclic tetrapeptide mycotoxin that is excreted by the Alternaria fungal species like Alternaria alternata and Alternaria tenuis. |
Packaging: | 1 mg in glass bottle |
Packaging: | 250 μg in glass bottle |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 3 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥95% (HPLC) |
Storage Temp. | 2-8°C |
UNSPSC | 12352200 |