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T8019

Tentoxin from Alternaria tenuis

Naturally occurring phytotoxic cyclic tetrapeptide

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250 μg
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$358.00
1 mg
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$1,170.00

About This Item

Empirical Formula (Hill Notation):
C22H30N4O4
CAS Number:
28540-82-1
Molecular Weight:
414.50
NACRES:
NA.56
PubChem Substance ID:
24900492
UNSPSC Code:
12352200
MDL number:
MFCD00133844

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biological source

fungus (Alternaria tenuis)

Quality Segment

200

assay

≥95% (HPLC)

storage temp.

2-8°C

SMILES string

CC(C)CC1NC(=O)C(C)N(C)C(=O)CNC(=O)\C(=C/c2ccccc2)N(C)C1=O

InChI

1S/C22H30N4O4/c1-14(2)11-17-22(30)26(5)18(12-16-9-7-6-8-10-16)21(29)23-13-19(27)25(4)15(3)20(28)24-17/h6-10,12,14-15,17H,11,13H2,1-5H3,(H,23,29)(H,24,28)/b18-12-/t15-,17-/m0/s1

InChI key

SIIRBDOFKDACOK-LFXZBHHUSA-N

General description

Tentoxin is a majorly occurring cyclic tetrapeptide mycotoxin that is excreted by the Alternaria fungal species like Alternaria alternata and Alternaria tenuis.

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.
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.

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This Item
37018A1312A3171
Tentoxin from Alternaria tenuis Naturally occurring phytotoxic cyclic tetrapeptide

Sigma-Aldrich

T8019

Tentoxin from Alternaria tenuis

Tenuazonic acid analytical standard

Supelco

37018

Tenuazonic acid

Alternariol from Alternaria sp. ~96%

Sigma-Aldrich

A1312

Alternariol from Alternaria sp.

Alternariol monomethyl ether from Alternaria alternata (tenuis)

Sigma-Aldrich

A3171

Alternariol monomethyl ether from Alternaria alternata (tenuis)

description

Naturally occurring phytotoxic cyclic tetrapeptide

description

analytical standard

description

~96%

description

-

assay

≥95% (HPLC)

assay

-

assay

~96%

assay

-

biological source

fungus (Alternaria tenuis)

biological source

-

biological source

-

biological source

-

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

200

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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    Certificates of Analysis (COA)

    Lot/Batch Number
    0000141106
    045K4117
    045K4063
    032K4071
    027K4091

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