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Fig. 3 | BMC Genomics

Fig. 3

From: Glyphosate’s impact on vegetative growth in leafy spurge identifies molecular processes and hormone cross-talk associated with increased branching

Fig. 3

Simplified auxin biosynthesis and signaling pathway in plants, and abundance of auxin profiles in aerial tissues derived from crown buds of glyphosate-treated leafy spurge. (a) Two major pathways have been proposed for auxin biosynthesis in plants, i.e., tryptophan (Trp)-dependent and -independent pathways. Several Trp-dependent auxin biosynthesis pathways have been proposed, i.e. the tryptamine (TAM), the indole-3-pyruvic acid (IPA), the indole-3-acetaldoxime (IAOX), and the indole-3-acetamide (IAM) pathways. Indole-3-glycerol phosphate is the branching point of the Trp-independent route. Red italic text indicates the genes involved in particular step/s of the pathway. (b) Abundance of bioactive auxins (IAA, IBA) and auxin conjugates (IAA-Asp, IAA-Glu) in aerial tissues derived from crown buds of glyphosate-treated plants. Data represent the mean of four biological replicates obtained from lyophilized tissue (DW), ‘nd’ indicates ‘not detectable’; vertical bars indicate ± SE of the mean

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