(b)Fluorescence photomicrograph of a natural microbial community Microcolonies colonizing plant roots in soil. Root Note microcolony development.荧光照片：土 壤根际的自然微生物群 落，注意其中的微菌落 (a) 2012 Pearson Education,Inc. (stained with acridine orange)丫啶橙染色(b) Fluorescence photomicrograph of a natural microbial community colonizing plant roots in soil. Note microcolony development. 荧光照片:土 壤根际的自然微生物群 落,注意其中的微菌落. (stained with acridine orange)丫啶橙染色