Growth Regulators

Thaxtomin A

Thaxtomin A is a unique dioxopiperazine containing a 4-nitroindol-3-yl moiety isolated by scientists at Dow Agrisciences from Streptomyces scabies, the causative agent of common scab on new potatoes in 1989. Thaxtomin A is the predominant and most active...

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1,3-Diphenylurea

1,3-Diphenylurea is an endogenous metabolite of plants present in coconut milk (Cocos nucifera) amonth other sources. In combination with casein hydrolysate, 1,3-diphenylurea promotes transport of photosynthetic products in the vascular tissue of carrots...

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Psychotridine

Psychotridine is the main component of an alkaloid complex isolated from Psychotria beccaroides by Lamberton and colleagues (CSIRO, Australia) in 1974. Psychotridine is structurally related to hodgkinsine. The structure of psychotridine was revised in...

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Phomopsinamine

Phomopsinamine is a potent mycotoxin produced by the fungus, Phomopsis leptostromiformis. Phomopsinamine is formed by hydrolysis of the dicarboxylic acid of phomopsin A. The phomopsins cause lupinosis in livestock fed infected lupins. Phomopsinamine is a...

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Palmarumycin C3

The palmarumycins are fungal metabolites isolated from Coniothyrium and Sphaeropsidales sp. with antifungal, antibacterial, antitumor and herbicidal properties. Palmarumycin C3 is a yellow-green pigment which inhibits Ras farnesyl-protein...

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Nanangenine B

The nanangenines are newly discovered drimane sesquiterpenoid metabolites from a hitherto undescribed Australian fungus, Aspergillus nanangensis. Nanangenine B is a drimane lactone bearing a C6 acyl side chain. Nanangenine C has weak activity against B...

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Malolactomycin C

Malolactomycin C, produced by Streptomyces sp., is the N-demethyl analogue of the malolactomycin family, a 40-membered macrolide. Malolactomycin C has moderate activity against selected fungi, specifically Cladosporium, Botrytis, and Pyricularia. Its...

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Indole-3-propionic acid

Indole-3-propionic acid is a tryptophan metabolite long recognised as a plant growth regulator. Indole-3-propionic acid is produced by microbiota in the human gut, including Clostridium sporogenes. Indole-3-propionic acid is a potent antioxidant and free...

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GR24

GR24 is a synthetic strigolactone and plant growth regulator that stimulates germination of parasitic weeds and hyphal branching of symbiotic mycorrhizal fungi, and regulates shoot outgrowth. GR24 stimulates the expression of DRM splicing variants and...

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Janthitrem A

Janthitrem A is a fluorescent indole-diterpenoid tremorgenic mycotoxin produced by Penicillium janthinellum-infected rye grass discovered by Gallagher and colleagues at CSIR, New Zealand in 1980. Interestingly, the structure of jJanthitrem A was only...

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Karrikinolide

Karrikinolide (KAR1) was discovered by Ghisalberti, Flematti and colleagues, University of Western Australia in 2009.Karrikinolide, found in smoke water extracts, acts as a key germination trigger for many species from fire-prone, Mediterranean climates,...

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Karrikin 2

Karrikin 2, found in smoke water extracts, acts as a key germination trigger for many species from fire-prone Mediterranean climates, but is also active in plants from temperate regions. Karrikin 2 is more active than karrikinolide and KAR3 in promoting...

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