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 |
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中文关键词:分类,形态学,症状,自然流行,虫霉目 |
英文关键词:taxonomy, morphology, symptom, natural prevalence, Entomophthorales |
基金项目:国家自然科学基金(No. 39870647) |
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中文摘要: |
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%。 |
英文摘要: |
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. |
贾春生,洪波. 广东虫疠霉——侵染黑肩绿盲蝽的虫疠霉属一新种[J]. 菌物学报, 2013, 32(5): 785-790 |
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