CAJ | 학술논문

随着卷丹百合种植面积的扩大，卷丹百合叶部真菌性病害也越来越严重，尤其在2014年6~7月份，由于降水偏多，卷丹百合叶部病害大发生，6月中旬重病田卷丹百合枯死株率达50%~70%，部分田块卷丹百合地上部全部枯死。从卷丹百合发病叶片分离得到病原菌，进行致病性鉴定、孢子形态观察、18S rDNA序列分析，生物学特性研究，结果表明，该病原菌为半知菌链格孢（ Alternaria alternata）。该菌菌丝生长致死温度为55℃；适宜 pH为6~7；在供试的几种碳、氮源中，最适的碳源是麦芽糖，最适的氮源是酵母。
수착권단백합충식면적적확대，권단백합협부진균성병해야월래월엄중，우기재2014년6~7월빈，유우강수편다，권단백합협부병해대발생，6월중순중병전권단백합고사주솔체50%~70%，부분전괴권단백합지상부전부고사。종권단백합발병협편분리득도병원균，진행치병성감정、포자형태관찰、18S rDNA서렬분석，생물학특성연구，결과표명，해병원균위반지균련격포（ Alternaria alternata）。해균균사생장치사온도위55℃；괄의 pH위6~7；재공시적궤충탄、담원중，최괄적탄원시맥아당，최괄적담원시효모。
With the increasing planting area of Lilium lancifolium, the leaf fungal dis-ease of L. lancifolium is becoming more and more serious. In June and July of 2014, the excessive rainfal leads to the serious outbreak of leaf disease of L. lanci-folium. In mid-June, the wilting rate of L. lancifolium in seriously-infected field was even up to 50%-70%. In some fields, the shoots of L. lancifolium even al wilted. The pathogen was isolated from the infected leaves of L. lancifolium. Its pathogenici-ty, spore morphology, 18S rDNA sequence and biological characteristics were stud-ied. The results showed the isolated pathogen was Alternaria alternate. The lethal temperature of mycelial growth was 55 ℃. The optimum pH was 6-7. Among the tested carbon sources and nitrogen sources, the optimum carbon source was mal-tose, and the optimum nitrogen source was yeast extract.