Indole-3-acetic acid and Glucobrassicin

FIVE-MEMBERED HETEROCYCLIC RINGS AND THEIR FUSED DERIVATIVES 

However, to characterize the developmental defects caused by auxin deficiency is also an important aspect of auxin biology [140-142], 

The biosynthetic pathways for lAA can be classified as Tip-dependent in the case where lAA is derived via metabolism of Trp, or as Trp-independent in the case where lAA is derived from an early indolic precursor of Trp, most likely indole-3-glycerol phosphate (IGP) [157, 158]. 

Decades of studies have established that auxin biosynthesis is extremely complex and there are multiple Trp-dependent biosynthetic routes to lAA in plants [158], and microbes [159]. Microbial lAA biosynthesis pathways are well defined, but none of the proposed lAA biosynthetic pathways in plants has been completely defined. 

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