广东虫疠霉——侵染黑肩绿盲蝽的虫疠霉属一新种  

Pandora guangdongensis,a new species of Pandora infecting Cyrtorhinus lividipennis

作　　者：贾春生[1] 洪波[2] 

机构地区：[1]韶关学院英东生物工程学院,广东韶关512005 [2]韶关学院国际交流与合作处,广东韶关512005

出　　处：《菌物学报》2013年第5期785-790,共6页Mycosystema

基　　金：国家自然科学基金(No.39870647)

摘　　要：报道了采自广东省韶关市黑肩绿盲蝽Cyrtorhinus lividipennis的病原真菌新种:广东虫疠霉Pandora guangdongensis。该菌分生孢子单核,双囊壁,椭圆形或拟卵形,[25.7±1.1(23.4–27.3)]×[11.5±0.9(10.4–13.0)]μm,L/D为2.2±0.2(1.8–2.6)。次生分生孢子卵形,[19.7±1.5(17.7–20.9)]×[11.7±0.5(11.5–12.3)]μm,菌丝段菌丝状,直径8.3±1.0(6.5–10.4)μm。分生孢子梗掌状分枝,直径7.0±0.7(5.2–9.1)μm。假囊状体长336.0±95.3(231.2–418.7)μm,基部直径13.4±3.5(9.0–18.0)μm,端部直径6.0±1.5(5.1–7.7)μm。假根单菌丝状,无隔,直径17.7±2.2(15.4–20.6)μm,端部膨大为盘状固着器。休眠孢子未见。该菌主要在10月份发生流行,引起黑肩绿盲蝽成虫和若虫的最高侵染死亡率分别为18.5%和8.9%。Pandora guangdongensis, a new species of Pandora infecting Cyrtorhinus lividipennis from Shaoguan of Guangdong Province, is reported. Primary conidia of this fungus were uninucleate, bitunicate and ellipsoid to ovoid, [25.7±1.1（23.4-27.3）]×[11.5±0.9（10.4-13.0）]μm, L/D=2.2±0.2（1.8-2.6）. The secondary conidia were ovoid, [19.7±1.5 （17.7-20.9）]×[11.7±0.5（11.5-12.3）]μm. The hyphal bodies were hyphoid with a diameter of 8.3±1.0（6.5-10.4）μm. The conidiophores were digitately branched, 7.0±0.7（5.2-9.1）μm in diameter. Pseudocystidia were 336.0±95.3（231.2-418.7）μm long, 13.4±3.5（9.0-18.0）μm in diameter, 13.4±3.5（9.0-18.0）μm in base diameter and 6.0±1.5（5.1-7.7） in apex diameter.Rhizoids were monohyphal and aseptate, 17.7±2.2（15.4-20.6）μm in diameter. Resting spores were not observed. The fungus mainly occurs in October, causing 18.5% and 8.9% of maximum mortalities to adults and nymphs of C. lividipennis respectively.

关 键 词：分类 形态学 症状 自然流行 虫霉目 

分 类 号：S476.1[农业科学—农业昆虫与害虫防治]