CAJ | 학술논문

丽赤壳属多数种是桉树焦枯病（ Cylindrocladium leaf blight）重要致病菌，掌握病原菌生物学特性有助于从病原角度了解病害发生发展，科学指导防治。对桉树焦枯病致病菌株Calonectria pseudoreteaudii生物学特性进行测定。结果表明：该菌株菌丝生长以燕麦片琼脂培养基生长最快，最适温度为24-26℃，最适pH值为7．0，而光照条件不影响菌丝生长；菌株产孢最适温度为25℃，最适pH值为6．0，以光照、PDA培养基产孢量较高；分生孢子萌发与相对湿度成正相关，最适温度为28℃，最适pH值为6．0，黑暗有助于孢子萌发。
려적각속다수충시안수초고병（ Cylindrocladium leaf blight）중요치병균，장악병원균생물학특성유조우종병원각도료해병해발생발전，과학지도방치。대안수초고병치병균주Calonectria pseudoreteaudii생물학특성진행측정。결과표명：해균주균사생장이연맥편경지배양기생장최쾌，최괄온도위24-26℃，최괄pH치위7．0，이광조조건불영향균사생장；균주산포최괄온도위25℃，최괄pH치위6．0，이광조、PDA배양기산포량교고；분생포자맹발여상대습도성정상관，최괄온도위28℃，최괄pH치위6．0，흑암유조우포자맹발。
Absrt act:Calonectria spp., particularly in their Cylindrocladium anamorph form, are well-known pathogens associated with Cylin-drocladium leaf blight.For the purpose of understanding the biological characteristics of Ca.pseudoreteaudii YA5j2 and guiding how to control this disease, biological characteristics of this isolate were determined.The optimal conditions for mycelium growth were oatmeal agar medium with pH 7.0 cultivated at 24-26℃, and illuminance had no significant effect on hyphae growth.The suitable conditions for spore production were potato dextrose agar medium with pH 6.0 cultivated at 25℃in the light.Conidium germination had a positive correlation with relative humidity, and conidium under the circumstance with high humidity, pH 6.0, temperature at 28 ℃, and without illumination contributed to germination.