Arabidopsis thaliana are short flowering plants related to cabbage and mustard. The importance of this plant has become more significant since it was the first plant genome to be sequenced. Many genetics and molecular biology studies have been developed in the last few years. In this research, the plant reaction to the nitric oxide (NO) exposure needs to be measured. It is currently unknown how the NO controls the root cell proliferation [1]. In order to measure the effect of this monoxide, the number of cells in the apical root tip of these plants needs to be obtained. A images processing method is presented here for carrying out the cell counting and the tracking operations. This paper is organized in three different sections. The section 1 explains the methodology of the procedure. The second part discusses the techniques used to make the cell detections. The section 3 presents the cell tracking, and finally some conclusions and experimental results are presented in the last paragraphs.
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