期刊
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
卷 32, 期 7, 页码 736-744出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dci.2007.11.005
关键词
plant; pathogen; nucleotide-binding; leucine-rich repeat; pattern recognition; receptor; effector; recombination; NOD-like receptor; toll-like receptor
Plants have evolved a robust innate immune system that exhibits striking similarities as well as significant differences with various metazoan innate immune systems. For example, plants are capable of perceiving pathogen-associated molecular patterns through pattern recognition receptors that bear structural similarities to animal Toll-tike receptors. In addition, plants have evolved a second surveillance system based on cytoplasmic NB-LRR proteins (nucleotide-binding, leucine-rich repeat) that are structurally similar to animal nucleotide-binding and oligomerization domain (NOD)-like receptors. Plant NB-LRR proteins do not detect PAMPs; rather, they perceive effector proteins that pathogens secrete into plant cells to promote virulence. This review summarizes the current state of knowledge about the molecular functionality and evolution of these immune surveillance genes. (c) 2007 Elsevier Ltd. All rights reserved.
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