Difference of auxin transport inhibitor treatment on several development processes between Arabidopsis and Nicotiana seedlings

摘要

Auxin transport and signaling enforce stomatal patterning as well as the size of their stem cell compartment in Arabidopsis. But it remains unknown whether this regulation is also existed in other species. We use Nicotiana as an example to analysis the function of auxin transport inhibitor NAP and BFA on its stomatal developement on the epidermis of cotyledon taking Arabidopsis as control. Here we report that there is an inter-specific difference between Nicotiana and Arabidopsis under exogerous auxin inhibitors (NPA and BFA) treatment in stomatal development. No stomatal development defect can be detected in Nicotiana treated with NPA and BFA under the same concentration which can induce patterning and morphogenesis abnormality of stoma in Arabidopsis.