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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.21, no.3, 2003³â, pp.276-285
¹æ»ç¼±À¯µµ µ¹¿¬º¯ÀÌü Bacillus lentimorbus WJ5a17¿¡ ÀÇÇÑ Pythium Root rotÀÇ ¹æÁ¦
( Biological Control of Pythium Root Rot by Radiation Induced Mutant, Bacillus lentimorbus WJ5a17 )
ÀÌ¿µ±Ù;±èÀ缺;À庴ÀÏ;ÀåÀ¯½Å;ÀÌÈ£¿ë; Çѱ¹¿øÀڷ¿¬±¸¼Ò ¹æ»ç¼±À̿뿬±¸ºÎ;Çѱ¹¿øÀڷ¿¬±¸¼Ò ¹æ»ç¼±À̿뿬±¸ºÎ;Çѱ¹¿øÀڷ¿¬±¸¼Ò ¹æ»ç¼±À̿뿬±¸ºÎ;Çѱ¹¿øÀڷ¿¬±¸¼Ò ¹æ»ç¼±À̿뿬±¸ºÎ;»óÁö´ëÇб³ »ý¸í°úÇаú;
 
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Pythium ultimum¿¡ ÀÇÇÑ »Ñ¸®½âÀ½º´À» »ý¹°ÇÐÀûÀ¸·Î ¹æÁ¦Çϱâ À§ÇÏ¿© ÀÌ¿¡ ´ëÇÑ Ç×Áø±Õ Ȱ¼ºÀÌ ÀÖ´Â ¼¼±Õ Bacillus lentimorbus WJ5¸¦ ¹æ»ç¼± ($^{60}Co$)À» Á¶»çÇÏ¿© º¸´Ù ´õ °­ÇÑ Ç×Áø±Õ Ȱ¼ºÀ» °¡Áö´Â µ¹¿¬º¯ÀÌü B. lentimorbus WJ5a17À» À¯µµÇÏ¿´´Ù. B. lentimorbus WJ5¿Í WJ5a17À» °¢°¢ Ȱ¿ëÇÑ ¹Ì»ý¹°Á¦Á¦ FWJ5¿Í FWJ5a17À» Á¶Á¦ÇÏ¿´À¸¸ç ±Õü¼ö´Â $1.0 imes 10^{11}$ CFU $g^{-1}$ ÀÌ¿´´Ù. ¹Ì»ý¹°Á¦Á¦´Â ÀúÀå 30Àϰ¿¡µµ Ç×Áø±Õ ¼¼±ÕÀÌ $50. imes 10^{10}$ $g^{-1}$ ÀÌ»ó »ýÁ¸ÇÏ¿´°í, »óÅä¿Í ¹ç Åä¾ç¿¡¼­´Â $1.0 imes 10^{7}$ CFU $g^{-1}$ÀÌ»óÀÇ »ýÁ¸¼¼Æ÷¼ö¸¦ À¯ÁöÇÏ¿´´Ù. ¶ÇÇÑ P. ultimumÀÇ Æ÷Àڹ߾Ƹ¦ B. lentimorbus WJ5 Á¦Á¦ (FWJ5)°¡ 71.0% ¾ïÁ¦ÇÏ¿´°í, B. lentimorbus WJ5a17 Á¦Á¦(FWJ5a17)´Â 81.4%¾ïÁ¦ÇÏ¿´´Ù. ¹Ì»ý¹°Á¦Á¦ÀÎ FWJ5¿Í FWJ5a17Àº °íÃß, ¹èÃß¿Í ¹«ÀÇ Á¾ÀÚ ¹ß¾Æ¿Í Ãʱâ»ýÀå¿¡ À¯ÇØÇÑ ¿µÇâÀ» ÁÖÁö ¾ÊÀ» »Ó¸¸ ¾Æ´Ï¶ó, ÀÛ¹° »ýÀ°Ãʱâ¿Í Á߱⿡ 1ȸ ó¸®ÇÏ¿´À» °æ¿ì¿¡µµ P ultimum¿¡ ÀÇÇÑ »Ñ¸®½âÀ½º´Â¡ÀÇ ¹ß»ýÀ» À¯ÀÇÇÏ°Ô (p<0.05) ¾ïÁ¦ÇÏ¿´±â¿¡ ¸Å¿ì È¿°úÀûÀÎ »ý¹°ÇÐÀû Á¦¾îÁ¦ÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
To control pythium root rot, Bacillus lentimorbus WJ5a17 with high anti-fungal activity against Pythium ultimum was induced from B. lentimorbus WJ5 by gamma radiation ($^{60}Co$). The biocontrollers of FWJ5 and FWJ5a17 were formulated ($1.0 imes 10^{11}$) with B. lentimorbus WJ5 and WJ5a17, respectively, The population density of FWJ5 and FWJ5a17 maintained highly up to $1.0 imes 10^{9}$ CFU $g^{-1}$ in nursery and field soils until 30 days after treatment. P. ultimum spores germination were inhibited 71.0% and 81.4% by FWJ5 and FWJ5a17, respectively. Pythium root rot of yea pepper, Chinese cabbage and radish were significantly (p < 0.05) controled by one time treatment of FWJ5 and FWJ5a17.
 
Ű¿öµå
Bacillus lentimorbus WJ5;biocontroller;mutant;Pythium ultimum;
 
ȯ°æ»ý¹° / v.21, no.3, 2003³â, pp.276-285
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921879691)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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