Abstract
Stomata consists of two guard cells, and controle carbon dioxide uptake for photosynthesis, restrict water loss, and allow evaporation for cooling. In addition to those physiological roles, a development mechanism of guard cells are interesting. MC79 was isolated as a responsible gene for the Arabidopsis mutant, which showed the abnormal stomata morphology. It showed aberrant location of each guard cells, and "capsule type" stomata. The MC79 encodes a leucine rich repeat receptor like kinase (LRR-RLK). By the observation of the leaf epidermis in the transgenic plant with MC79 pro::MC79-GFP, we confirmed MC79r. It was preferentially expressed in meristemoid to guard mother cell. MC79 was also expressed in the epidermal cell at the devision region of the root. We also analyzed MC79-like receptor like kinase (MCL) showed high homology with MC79.
