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. 2010 Oct;154(2):531-5.
doi: 10.1104/pp.110.161315.

Gene clusters for secondary metabolic pathways: an emerging theme in plant biology

Anne Osbourn  1
Affiliations

Gene clusters for secondary metabolic pathways: an emerging theme in plant biology

Anne Osbourn. Plant Physiol. 2010 Oct.
No abstract available

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Figures

Figure 1.
Figure 1.
Detrimental effects of accumulation of toxic metabolic intermediates on plant growth and development. A, Accumulation of elevated levels of thalianol pathway intermediates in Arabidopsis results in moderate to severe dwarfing (adapted from Field and Osbourn, 2008). B, sad3 mutants of diploid oat accumulate an incompletely glucosylated avenacin pathway intermediate that is toxic, leading to stunted roots and a root hair deficiency phenotype. The top sections show cross sections of roots of wild-type and sad3 mutant seedlings stained with Calcofluor. Callose-containing aggregates were observed in the epidermal cells of the sad3 mutant but not in the wild type (confirmed using aniline blue). The accumulation of callose is likely to be a stress response triggered by accumulation of monodeglucosyl avenacin A-1. C, Cortex; E, epidermis. Scale bars = 50 μm. Adapted from Mylona et al. (2008).
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