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１９９０～１９９７年，从云南省２４个县市的５４种植物上分离到了１９７株冰核细菌，并进行了鉴定．其中菠萝欧文氏菌８３株，占４２．１％，草生欧文氏菌９株，占４．６％，流黑欧文氏菌３株，占１．５％，边缘假单胞菌１０株，占５．０％，丁香假单胞菌７１株，占３６．０％，菜豆荚斑假单胞菌１９株，占９．６％，草莓黄单胞菌１株，占０．５％，野油菜黄单胞菌１株，占０．５％．冰核细菌的种群和生态学在云南省植物上呈丰富的多样性．云南省植物上冰核活性细菌的优势种类是菠萝欧文氏菌，其次是丁香假单胞菌类．
From 1990 to 1997, 197 strains of Ilex nucleus were isolated and identified from 54 species of plants in 24 counties of Yunnan Province. Among them, 83 strains of Erwinia amylovora, accounting for 42.1%, 9 strains of Erwinia herbicularis, accounting for 4.6%, 3 strains of Erwinia amylovora accounting for 1.5% and 10 strains of Pseudomonas marginalis, accounting for 71 strains of Pseudomonas syringae, accounting for 36.0%, 19 strains of Pseudomonas cabinae, accounting for 9.6%, 1 strain of X. aeruginosa, accounting for 0.5% of the total Xanthomonas campestris 1, accounting for 0.5%. The population and ecology of ice nucleation bacteria are abundant in plants in Yunnan Province. The dominant species of active nucleus of ice nucleation plants in Yunnan Province were Erwinia. Strains of P. syringae followed by P. syringae.