Tribenuron

Tribenuron in the form of tribenuron-methyl is a sulfonylurea herbicide.[1] As such it is in WSSA/new HRAC group 2, and legacy HRAC group B, and its mode of action is the inhibition of acetolactate synthase.[2][3]

Tribenuron methyl
Names
IUPAC name
Methyl 2-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-methylcarbamoyl]sulfamoyl]benzoate
Identifiers
3D model (JSmol)
ECHA InfoCard 100.100.313
UNII
  • CC1=NC(=NC(=N1)OC)N(C)C(=O)NS(=O)(=O)C2=CC=CC=C2C(=O)OC
Properties
C15H17N5O6S
Molar mass 395.39 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Chemistry

Formula: 2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)methylamino]carbonyl]amino]sulfonyl]benzoic acid[4] It is a sulfonylurea.

Physicochemistry

In a clay-water suspension, tribenuron has increased sorption with decreasing pH and even more so with suspended load.[5]

Resistant crops

A tribenuron-resistance transformation has been achieved in watermelon and validated by survival of the als mutants but not the controls, under tribenuron treatment.[6]

Two oilseed type sunflower cultivars have been produced by USDA-ARS by conventional breeding.[7]

References
  1. Herbicide Resistance Action Committee (HRAC) (2 June 2020). "Global HRAC MOA Classification Working Group Report" (PDF).
  2. Scott Senseman (3 December 2020). "Weed Science Society of America - Herbicide Site of Action (SOA) Classification List".
  3. "HERBICIDE CLASSIFICATION MASTER MARCH 11 2020". Herbicide Resistance Action Committee (HRAC). 11 March 2020.
  4. Weed Science Society of America (WSSA) (2014). "Common and Chemical Names of Herbicides Approved by the Weed Science Society of America". Weed Science. Cambridge University Press (CUP). 62 (4): 679–687. doi:10.1614/0043-1745-62.4.679. ISSN 0043-1745. S2CID 198130304.
  5. Salbu, Brit; ([no] [sv] ORCID); Steinnes, Eiliv; ([no] ORCID) (1992). "Applications of nuclear analytical techniques in environmental research. Plenary lecture". The Analyst. Royal Society of Chemistry (RSC). 117 (3): 243–9. doi:10.1039/an9921700243. ISSN 0003-2654. {{cite journal}}: External link in |author2= and |author4= (help)CS1 maint: multiple names: authors list (link) p. 248.
  6. Wang, Tian; Zhang, Hongyan; Zhu, Hongliang; (ORCID) (2019-06-15). "CRISPR technology is revolutionizing the improvement of tomato and other fruit crops". Horticulture Research. Nature Research. 6 (1): 1–13. doi:10.1038/s41438-019-0159-x. ISSN 2052-7276. PMC 6570646. {{cite journal}}: External link in |author4= (help)CS1 maint: multiple names: authors list (link)
  7. Miller, J.F.; Al‐Khatib, Kassim; (ORCID Scholar) (2004). "Registration of Two Oilseed Sunflower Genetic Stocks, SURES‐1 and SURES‐2 Resistant to Tribenuron Herbicide". Crop Science. Crop Science Society of America (Wiley). 44 (3): 1037–1038. doi:10.2135/cropsci2004.1037. ISSN 0011-183X. S2CID 85001003. {{cite journal}}: |author3= has generic name (help); External link in |author3= (help)CS1 maint: multiple names: authors list (link)

Further reading
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