Journal of Northern Agriculture ›› 2021, Vol. 49 ›› Issue (5): 106-111.doi: 10.12190/j.issn.2096-1197.2021.05.15

• Molecular biology • Previous Articles     Next Articles

Rapid detection of seed carrying Pseudomonas savastanoi pv. phaseolicola in mung beans using PCR

TIAN Xiaoyan1, HE Xiaoyong1, KONG Qingquan1, ZHAO Cunhu1, CHEN Wenjin1, LI Zhidong2, JIA Zhuanqing3   

  1. 1. Institute of Plant Protection,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;
    2. Hohhot Agricultural Technology Extension Center,Hohhot 010030,China;
    3. Education and Teaching Research Center of Yuquan District of Hohhot,Hohhot 010031,China
  • Received:2021-08-23 Published:2022-01-06

Abstract: 【Objective】 Using PCR to rapidly screen primers with high sensitivity to the Pseudomonas savastanoi pv. phaseolicola on mung bean seed surface. Provide technical support for the detection of seed-carrying Pseudomonas savastanoi pv. phaseolicola in mung bean. 【Methods】 Seven pairs of specific primers were selected to perform a series of PCR reactions on Pseudomonas savastanoi pv. phaseolicola suspensions at different concentrations,and their sensitivity was verified. 【Results】 Three pairs of primers with high sensitivity were selected. The simulated seed surface bacteria detection results showed that the minimum concentration of bacterial suspension detected by primer B4-1-F/B4-1-R and B4-2-F/B4-2-R was 1×104 CFU/mL,and the minimum concentration of bacterial suspension detected by primer HB14F/HB14R was 1×106 CFU/mL. The results showed that primer B4-1-F/B4-1-R and B4-2-F/B4-2-R could detect the seed sample with seed-carrying rate of 0.062 5% after shaking and washing for 1 h,and primer HB14F/HB14R could detect the seed sample with seed-carrying rate of 0.125% after shaking and washing for 4 h. 【Conclusion】 PCR could be used to rapidly detect seed carrying the Pseudomonas savastanoi pv. phaseolicola on mung bean seed surface,which was convenient and quick.

Key words: Mung bean, Halo blight, PCR, Seed-carrying, Primer

CLC Number: 

  • S432.4