CAJ | 학술논문

将荧光假单胞菌 Q2－87、1M1－96、Pf－5和洋葱伯克霍尔德氏菌 C23等4个 PGPR 菌株分别于2014年4月和5月接种于火炬松和湿地松苗根部；并于当年8月份利用手持式叶绿素测定仪测定两种松苗针叶的 SPAD 值。结果如下：①接种菌株 Q2－87和1M1－96的火炬松苗针叶 SPAD 值显著高于清水对照；接种菌株 Pf－5与接种菌株 Q2－87和1M1－96的火炬松苗针叶 SPAD 值无显著性差异；②接种菌株 Q2－87和1M1－96的湿地松苗针叶 SPAD 值显著高于清水对照。根据本文的实验结果和参阅文献,推断菌株 Q2－87、1M1－96和 Pf－5的代谢产物2,4－DAPG 诱导火炬松和湿地松苗产生了系统诱导抗病性。
장형광가단포균 Q2－87、1M1－96、Pf－5화양총백극곽이덕씨균 C23등4개 PGPR 균주분별우2014년4월화5월접충우화거송화습지송묘근부；병우당년8월빈이용수지식협록소측정의측정량충송묘침협적 SPAD 치。결과여하：①접충균주 Q2－87화1M1－96적화거송묘침협 SPAD 치현저고우청수대조；접충균주 Pf－5여접충균주 Q2－87화1M1－96적화거송묘침협 SPAD 치무현저성차이；②접충균주 Q2－87화1M1－96적습지송묘침협 SPAD 치현저고우청수대조。근거본문적실험결과화삼열문헌,추단균주 Q2－87、1M1－96화 Pf－5적대사산물2,4－DAPG 유도화거송화습지송묘산생료계통유도항병성。
Four PGPR strains including Pseudomonas fluorescens Q2-87,1M1-96,Pf-5 and Burkholderia cepacia C23, were inoculated on Pinus taeda and P .elliottii in April and May,2014,respectively;The SPAD values of pine seedlings were measured using SPAD 502 PLUS in August,2014.The results were as follows:①The SPAD values of the needle leaves of P .taeda seedling inoculated with Q2-87 and 1M1-96 were significantly higher than that of P .taeda seedling in-oculated with water;The SPAD Values of P .taeda seedlings inoculated with Pf-5 had no significant difference with that of P .taeda seedlings inoculated with Q2-87 and 1M1-96;②The SPAD values of the needle leaves of P .elliottii seedling inoculated with Q2-87 and 1M1-96 were significantly higher than that of P .elliottii seedling inoculated with water.Ac-cording to the experimental results and the references,we estimate that ISR was induced by 2,4-DAPG in the two kinds of pine inoculated with Q2-87,1M1-96 and Pf-5.