广州地区13种作物丝核菌的鉴定  

Identification of Rhizoctonia spp. Isolated from Thirteen Crops in Guangzhou Region in China

作　　者：黄江华[1] 周而勋[1] 戚佩坤[1] 

机构地区：[1]华南农业大学植物病理学系,广东广州510642

出　　处：《华南农业大学学报》2003年第4期24-27,共4页Journal of South China Agricultural University

基　　金：国家自然科学基金资助项目(39870438);广东省自然科学基金资助项目(950383)

摘　　要：从广州地区13种作物上分离得到57个丝核菌(Rhizoctoniaspp.)菌株.依菌丝直径、细胞核数目和培养性状等鉴定出52个立枯丝核菌(R.solani)、2个水稻丝核菌(R.oryzae)和3个双核丝核菌(binucleateRhizoctonia);并对52个立枯丝核菌(R.solani)菌株进行了融合群归类,其中有30个菌株属于AG 1 IA、1个属于AG 1 IB、4个属于AG 1 IC、12个菌株属于AG 4、3个菌株属于AG 2 2ⅢB、2个菌株未知其归属.Fifty-seven isolates of Rhizoctonia spp. were isolated from diseased tissues of sheath blight or damping-off in thirteen crop plants in Guangzhou region, China. According to mycelial diameters, nuclear numbers and culture characters, the isolates were categorized as follows: fifty-two isolates were identified as R. solani, two isolates as R. oryzae and the other three isolates as binucleate Rhizoctonia. According to the test of anastomosis groups (AGs), fifty-two of isolates of R.solani were categorized as follows: thirty isolates were grouped into AG-1-IA, one into AG-1-IB, four into AG-1-IC, twelve into AG-4, three into AG-2-2 Ⅲ B, and two unknown.

关 键 词：广州地区 丝核菌 农作物 真菌 病害防治 

分 类 号：S432.44[农业科学—植物病理学]