遺伝子組換えによる病害抵抗性作物育種の展望

抄録

For crop improvement, DNA manipulation techniques provide new approaches to generate useful plants which carry and express additive foreign genes. Recently, agronomically useful genes, such as herbicide, viral, fungal and insect resistance genes, have been introduced to both of dicot and monocot plants, and additive acquired resistance against the chemical and biological stresses were found in these tansgenic plants. Because resistance genes against phytopathogenic bacteria are limited in main crops, generation of transgenic plants which are resistant to bacterial disease have been long-waited. In addition, criticism against environmental pollution by usage of agricultural antibiotics to protect bacterial infection has increased. In this context, transgenic strategy to generate resistant crops against phytopathogenic bacteria would be important now. In this paper, genetic sources for introduced gene constructs and outline of generated resistant transgenic plants against phytopathogenic fungi and bacteria are described.