Gene-for-gene disease resistance: Bridging insect pest and pathogen defense

作者：Kaloshian I^*

来源：Journal of Chemical Ecology, 2004, 30(12): 2419-2438.

DOI：10.1007/s10886-004-7943-1

• resistance genes
• piercing-sucking insects
• active plant defense
• resistance response
• Mi-l

Active plant defense, also known as gene-for-gene resistance, is triggered when a plant resistance (R) gene recognizes the intrusion of a specific insect pest or pathogen. Activation of plant defense includes an array of physiological and transcriptional reprogramming. During the past decade, a large number of plant R genes that confer resistance to diverse group of pathogens have been cloned from a number of plant species. Based on predicted protein structures, these genes are classified into a small number of groups, indicating that structurally related R genes recognize phylogenetically distinct pathogens. An extreme example is the tomato Mi-l gene, which confers resistance to potato aphid (Macrosiphum euphorbiae), whitefly (Bemisia tabaci), and root-knot nematodes (Meloidogyne spp.). While Mi-l remains the only cloned insect R gene, there is evidence that gene-for-gene type of plant defense against piercing-sucking insects exists in a number of plant species.

• 出版日期2004-12