Department of Plant Pathology, University of California, Davis, CA 95616, USA.
Science. 2010 Nov 19;330(6007):1061-4. doi: 10.1126/science.1189468.
The last common ancestor of plants and animals may have lived 1 billion years ago. Plants and animals have occasionally exchanged genes but, for the most part, have countered selective pressures independently. Microbes (bacteria, eukaryotes, and viruses) were omnipresent threats, influencing the direction of multicellular evolution. Receptors that detect molecular signatures of infectious organisms mediate awareness of nonself and are integral to host defense in plants and animals alike. The discoveries leading to elucidation of these receptors and their ligands followed a similar logical and methodological pathway in both plant and animal research.
动植物的最后一个共同祖先可能生活在 10 亿年前。植物和动物偶尔会交换基因，但在大多数情况下，它们是独立应对选择压力的。微生物（细菌、真核生物和病毒）是无处不在的威胁，影响着多细胞进化的方向。检测感染性生物体分子特征的受体介导了对非自身的认识，并且在植物和动物的宿主防御中是不可或缺的。这些受体及其配体的发现，遵循了在植物和动物研究中类似的逻辑和方法途径。
