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内生细菌01-144在番茄根茎内定殖的初步研究
引用本文:龙良鲲, 肖崇刚,.内生细菌01-144在番茄根茎内定殖的初步研究[J].微生物学通报,2003,30(5):53-56.
作者姓名:龙良鲲  肖崇刚  
作者单位:西南农业大学植物保护系,重庆,400716
摘    要:对内生细菌 0 1 1 4 4进行了抗药性标记 ,利用标记菌株研究了其在番茄根茎内的定殖情况。浸种与灌根处理均可使 0 1 1 4 4在番茄根茎内定殖 ,且在根内的定殖能力大于茎内 ;灌根处理还表明 ,其在茎下部的定殖能力大于茎上部 ;0 1 1 4 4定殖数量动态在根茎内均有一个“由增到减”的趋势 ,但其在根内的数量变化明显较茎内平缓。

关 键 词:内生细菌    番茄    定殖    动态  
文章编号:0253-2654(2003)05-0053-04
修稿时间:2002年9月23日

PRELIMINARY STUDY ON THE COLONIZATION OF ENDOPHYTIC BACTERIUM 01-144 IN TOMATO ROOT AND STEM
LONG Liang-Kun,XIAO Chong-Gang.PRELIMINARY STUDY ON THE COLONIZATION OF ENDOPHYTIC BACTERIUM 01-144 IN TOMATO ROOT AND STEM[J].Microbiology,2003,30(5):53-56.
Authors:LONG Liang-Kun  XIAO Chong-Gang
Abstract:The endophytic bacterum 01-144 was marked by using the method of antib iotic-resistance. Colonization of 01-144 in tomato root and stem was investig ate d. Result showed that 01-144 colonized in the root and stem and the colonizing a bility in the root was stronger than in the stem after dipping seed or watering root treatmeat, It was also found that this bacterium could more easly colonized in the low stem than in the upper stem. The population fluctuation of 01-144 ha d the same trend in both root and stem i.e.first increased then decreasing, an d the fluctuation in the root was more even than in the stem.
Keywords:Endophytic bacterium  Tomato  Colonization  Fl uctuation
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