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Fig. 7 | BMC Plant Biology

Fig. 7

From: Glycolate oxidase-dependent H2O2 production regulates IAA biosynthesis in rice

Fig. 7

A proposed model of how SA links to IAA via photorespiration. This model was formed by referring to Zhang et al., [11]. When GLO is interacted with CAT, the photorespiratory H2O2 produced by GLO could be quickly removed by CAT through substrate channeling mechanism, otherwise the photorespiratory H2O2 will be accumulated. The dynamic interaction of GLO and CAT acts as a molecular switch to sense variable SA levels in response to environmental changes. The photorespiratory H2O2 fluctuation generated by the association-dissociation of GLO and CAT could further regulate IAA biosynthesis

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