CAJ | 학술논문

洋葱伯克霍尔德菌C23是一株从湿地松根部分离到的拮抗细菌.在培养2d后,其培养物对丝核菌(Rhizoctonia solani)和链格孢菌(Alternara alternata)均表现出明显抑制效果,但对镰刀菌(Fusarium sp)几乎没有抑制作用.在室内防病试验时,C23表现出一定的防病效果,但在室外,没有表现出防病效果.菌株C23可在湿地松根部定殖,但是在根部不同部位的分布并没有规律可循.在定殖过程中,C23菌株在松苗根部的菌量随着时间的增长而增加.接种后40d,菌量达到峰值,而后数量逐渐减少.
양총백극곽이덕균C23시일주종습지송근부분리도적길항세균.재배양2d후,기배양물대사핵균(Rhizoctonia solani)화련격포균(Alternara alternata)균표현출명현억제효과,단대렴도균(Fusarium sp)궤호 몰유억제작용.재실내방병시험시,C23표현출일정적방병효과,단재실외,몰유표현출방병효과.균주C23가재습지송근부정식,단시재근부불동부위적분포병몰유규률가순.재정식과정중,C23균주재송묘근부적균량수착시간적증장이증가.접충후40d,균량체도봉치,이후수량축점감소.
C23 of Burkhloderia cepacia was one antagonistic bacteria from Slash pine roots. After the antagonistic bacterica were cultured for two days, their culture exerted obvious inhibition on pathogenic fungi of Slash pine damping-off such as Rhizoctonia solani and Alternaria alternata. But C23 didn't show any inhibition on Fusarium sp. In the indoor experiment, C23 showed certain control effects. But outdoor, C23 didn't show any prevention effect. Strain C23 could be colonized in Slash pine root. But the distribution of C23 in different parts of the root showed no rules. In the process of colonization, the number of C23 kept rising with the time passing. Forty days later, there was the most amount of C23 within the root, then gradually reduced.