배추좀나방(Plutella xylostella L.)의 Fenvalerate에 대한 저항성 유전양식을 살충제 감수성과 해독댓활성 시험으로 조사하였다. 실내감수성계통(S)과 Fenvalerate도태저항성계통(R)의 정역교배에서 얻어진 양 (TEXS♀/TEX은 약량과 사망률 관계에서 감수성 차이가 없었다. 양 (TEXS♀/TEX의 우성도는 살충제 감수성에서 각각 -0.50, -0.46, 해독대사활성시험에서 각각 -0.85, -0.81로 나타났다. 따라서 fenvalerate저항성 유전자는 상염색체상에 존재하며 불완전열성에 의해 지배되는 것으로 나타났다.

This study was divised to observe an inhibitory toward a lipolytic action of toxohormone-L from large root and small root Nepal pseudo ginseng (NPG : Nepal products) components by water extract and ethanol precipitate in vitro. Toxohormone-L is known to be a lipolytic factor that was partially purified from the ascites fluid of sarcoma 180-bearing mice and of patients with hepatoma. The inhibitory effect that inhibited the lipolytic action of toxohormone-L by ethanol precipitate component of large root NPG(mean 46.8%) was higher (mean 1.8 times) than that of water extract component in final reaction concentration ; 500㎍/㎖, on the other side inhibitory effect of water extract component in small root NPG (mean 43.9%) was higher(mean 1.2 times) than that of ethanol precipitate component, respectively. In a way inhibitory effect of ethanol precipitate component in large root NPG(47.6%), when final reaction concentration of sample were l, 000㎍/㎖, was about 40% lower than that of Korean red ginseng, respectively.

Pyrethroid계 살충제 fenvalerate를 공시하여 실내 감수성계통 배추좀나방(Plu tella xylostella L.)을 인위적으로 누대도태한 후 저항성 발달속도와 정도를 조사하고, 이 저항성계통의 타 살충제에 대한 교차저항성 유무와 정도를 검토하였다. 저항성 발달속도는 fenvalerate 24세대 도태계통에서 도태전에 비하여 66.2배 증가하였다. Fenvalerate 도태계통은 pyrethroid계 살충제인 deltamethrin에 145배의 고도의 교차저항성을 나타내었고, alphamethrin, cypermethrin, fenvalerate, permethrin, tetramethrin에 17.4 -45.0배의 교차저항성을 나타내었다. 유기인계 diazinon, dichlorvos, ethoprophos, EPN과 카바메이트계 BPMC, carbaryl, methorny I에서는 2.1-4.3배의 낮은 교차저항성을 나타내었다. 그러나, 유기인계의 acephate, fenitrothion과 카바메트계 carbofuran에 대해서 비교차저항성을 나타내었다.

This study carried out to changes α-amylase activity and isozymes in barley during germination in the dark and red light. The specific activity of α-amylase was increased during the germination periods in the dark, giving 355.0 and 523.7 units/㎎ protein at 3 and 5 day, and the activity was increased by the red light up to 48 and 15% at 3 and 5 days of germination, respectively. The ratio of α-amylase Ⅰ and Ⅱ was approximately 95 : 5 at both 3 and 5 days of germination in the dark while the different ratio was found by the red light i. e. 60 : 40 and 90 : 10 at 3 and 5 days of germination, respectively.