Crown Galls

《英文msh词典》Crown Galls
[入口词] Crown Galls
[主题词] Plant Tumors
[英文释义] A localized proliferation of plant tissue forming a swelling or outgrowth,commonly with a characteristic shape and unlike any organ of the normal plant. Plant tumors or galls usually form in response to the action of a pathogen or a pest. (Holliday,P.,A Dictionary of Plant Pathology,1989,p330)