云南植物上冰核细菌的种类与分布

Species and Distribution of Ice Nucleation Active Bacteria on Plants in Yunnan Province

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．

In 1990 to 1997, 197 strains of ice nucleation active ( INA ) bacteria on plants in Yunnan province, were isolated and identified.Among them,83 strains are E.ananas, make 42.1% of total amount,9 strains are E.herbicola, make 4.6% of total amount. The other species include E.nigifluence, P.marginalis, P.syringea pvs., P.veridiflava, X.campestris pvs. and X.gragariae, which have 3,10,71,19,1 and 1 strains,and make 1.5%,5.0%,36.0%,9.6%,0.5%,0.5% of the total amount respectively. The results indicate the species diversity of INA bacteria on plants in Yunnan province.