Classification of Light Stress Responses by Microarray Analysis

Abstract

For plants, sun light is one and the only source of energy for photosynthesis and thus indispensable for growth of plants. On the other hand, intense and excess light environment causes the evolution of oxygen radicals in chloroplasts and has the potential to damage them. However, plants are able to respond to the light stress and protect the chloroplasts by various means, including transcriptional regulation at the nucleus. Activation of the light stress-responsive genes is mediated via hydrogen peroxide-dependent and -independent pathways. In this report, we will introduce our expression analysis for classification of light stress responses using Affimetrix GeneChip.