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원옥재,가유강,이증주,김진원,이정란,박기웅,Won, Ok Jae,Jia, Wei Qiang,Lee, Jeung Joo,Kim, Jin-Won,Lee, Jeongran,Park, Kee Woong 한국잡초학회한국잔디학회 2018 Weed & Turfgrass Science Vol.7 No.3
본 연구는 충청남도에서 ALS 제초제 저항성 논 잡초의 발생과 분포를 조사하기 위해 2017년도에 수행되었다. 충청남도 전체 논 재배면적의 47.0%인 64,782 ha에서 제초제 저항성 논 잡초가 발생하였다. 상위 5개 시 군별 제초제 저항성 잡초 발생면적은 서산시 11.9%, 논산시 11.1%, 당진시 10.9%, 보령시 9.2%, 아산시 7.8% 순이었다. 제초제 저항성 잡초종별 발생을 보면 물달개비가 가장 많았고, 다음으로 미국외풀, 올챙이고랭이, 강피, 알방동사니, 벗풀 순이었다. 제초제 저항성 물달개비, 미국외풀, 올챙이고랭이는 충청남도 전역에 분포하였으며, 벗풀은 당진시에서만 발생하였다. 2011년도 제초제 저항성 잡초 조사와 비교하여 제초제 저항성 잡초 발생면적은 감소하였으나, 제초제 저항성 잡초 발생률은 2011년도의 47.6%와 유사하였다. 제초제 저항성 잡초를 방제하기 위해서는 흔히 다른 작용기작을 지닌 제초제들과 병용하거나 교호로 처리하여야 하며 제초제 저항성 잡초의 주기적인 모니터링과 종합적인 제초제 저항성 관리체계가 필요하다. This study was conducted to investigate the occurrence and distribution of herbicide resistant weeds at rice fields in Chungnam province of Korea in 2017. Herbicide-resistant weeds occurred in 64,782 ha, which comprise 47.0% of the total paddy field area of Chungnam province. The infested area of herbicide resistant weeds was estimated in Seosan-si (11.9%), Nonsan-si (11.1%), Dangjin-si (10.9%), Boryeong-si (9.2%) and Asan-si (7.8%). The most dominant herbicide resistant weeds in rice fields were Monochoria vaginalis, followed by Lindernia dubia, Schoenoplectus juncoides, Echinochloa oryzicola, Cyperus difformis and Sagittaria trifolia. Herbicide resistant M. vaginalis, L. dubia, and S. juncoides occurred throughout Chungnam province, and herbicide resistant S. trifolia was only found in Dangjin-si. Compared with the 2011 survey, the infested area of herbicide-resistant weeds decreased, but the incidence rates were similar. The herbicide rotation with different modes of actions across growing seasons is recommended to control herbicide-resistant weeds in the infested fields. It is necessary to monitor herbicide resistance regularly and conduct integrated herbicide resistance management in this area.
퉁퉁마디로부터 염에 의하여 유도되는 Aldolase 유전자의 분리 및 발현분석
차준영,네티엘마와티,김순길,이증주,임채오,정우식,이곤호,손대영,Cha, Joon-Yung,Netty Ermawati,Kim, Soon-Gil,Lee, Jeung-Joo,Lim, Chae-Oh,Chung, Woo-Sik,Lee, Kon-Ho,Son, Dae-Young 한국식물생명공학회 2003 식물생명공학회지 Vol.30 No.4
토양 내의 고농도의 염은 심각한 환경스트레스 중의 하나로 농작물의 생산을 감소시킨다. 식물은 염 스트레스로부터 벗어나기 위하여 많은 단백질을 합성한다든지 유전자들의 발현을 조절하는 등 여러 가지 생리, 생화학적인 변화를 일으킨다. 퉁퉁마디는 우리나라에 자생하는 염생식물로 갯벌과 염전주위에서 생육한다. 퉁퉁마디의 생화학적, 분자생물학적 내염성 기구를 이해하기 위하여 differential display방법으로 NaCl에 의하여 발현이 증가되는 cDNA들을 분리하였다. 본 연구에서는 그 중 하나인 ShADL의 특성을 조사하였다. ShADL은fructose-1, 6-bisphosphate aldolase와 높은 유사성을 보였다. 이 유전자는 1293bp길이에 359개의 아미노산으로 구성된 open reading frame을 포함하고 있으며, 이로부터 추정되는 분자량은 39 kDa이었다. ShADL단백질은 애기장대의 aldolase와 86%의 높은 유사성을 나타내었으며 같은 염생식물인 com-mon ice plant의 adolase와는 78%의 유사성을 보였다. Northern 분석결과, ShADL 유전자는 NaCl의 농도가 증가함에 따라 발현량이 급격히 증가하는 것으로 나타났다. Soil salinity is one of the most serious abiotic stresses limiting the productivity of agricultural crops. To cope with salt stress, plants respond with physiological, developmental and biochemical changes, including the synthesis of a number of proteins and the induction of gene expression. Salicornia herbacea is a halophytic plant that grows in salt marshes and on muddy seashores. In order to understand the biochemical and molecular mechanisms of salt tolerance in S. herbacea, we isolated several genes that involved in the salt tolerance by mRNA differential display. Here we report the cloning of a cDNA encoding fructose-1, 6-bisphosphate aldolase, named ShADL, which is 1293 bp long and contains an open reading frame consisted of 359 amino acids with calculated molecular mass of 39 kDa. ShADL protein showed 86% identity with Arabidopsis and 78% with aldolase of common ice plant. Northern blot analysis revealed that the transcript of ShADL gene was increased dramatically depending on the NaCl concentrations.
식물 정유 clove oil 및 pine oil의 잡초방제 효과와 성분분석
이성근(Sung Geun Lee),안수정(Soo Jeong Ahn),홍점규(Jeum Kyu Hong),이상우(Sang Woo Lee),윤재길(Jae Gill Yun),박기웅(Kee Woong Park),최성환(Sung Hwan Choi),이증주(Jeung Joo Lee) 한국잡초학회·한국잔디학회 2021 Weed & Turfgrass Science Vol.10 No.1
본 연구는 식물 정유인 clove oil과 pine oil에 의한 벼 엽록소 함량 감소, 잡초방제 효과 및 식물 정유에 포함된 주요 유기화합물의 성분을 확인하기 위해 실시되었다. 식물 정유 처리 24, 48, 96, 및 168시간 후의 벼 엽록소 함량은 clove oil 10배 희석액의 경우 무처리 대비 각각 59.9, 54.6, 27.1, 및 14.5%였으며, pine oil 10배 희석액은 각각 47.2, 23.5, 15.7, 및 10.9%로 나타났다. Clove oil과 pine oil 10배 희석액의 엽록소 함량 감소효과는 glufosinate ammonium 기준량 처리보다 더 큰 것으로 나타냈다. 식물 정유 희석액의 잡초방제 효과는 농도가 높아질 수록 증가하였는데, 그 정도는 잡초종의 종류에 따라 다른 것으로 나타났다. 화본과 잡초는 광엽 잡초에 비해 방제 효과가 높은 경향이었으며, 광엽 잡초 중 비름 및 가막사리에 대한 방제 효과는 깨풀, 털별꽃아재비 및 닭의장풀 보다 더 높은 경향이었다. 식물 정유 성분을 분석한 결과 clove oil의 주성분은 squiterpene에 속하는 caryophyllene (44.61%) 및 phenolpropanoids에 속하는 eugenol (38.93%) 이었으며, pine oil의 주성분은 monoterpene에 속하는 (+)-3-carene (38.53%), α-terpinolen (23.15%) 및 limonene (10.86%)이었다. This study was conducted to investigate the reduction of rice chlorophyll content and herbicidal effects of clove oil and pine oil, and to identify the components of major organic compounds contained in the plant essential oils. The chlorophyll content of rice after 24, 48, 96, and 168 hours of plant essential oil treatment was 59.9, 54.6, 27.1, and 14.5% in the case of 10 times dilution clove oil, and 47.2, 23.5, 15.7, and 10.9% in pine oil 10 times dilution, respectively. The chlorophyll reduction effect of 10 times dilution of clove oil and pine oil was greater than that of the recommended amount of glufosinate ammonium. As the concentration of the plant essential oil dilution increased, herbicidal effects increased, but the effect was different depending on the weed species. Herbicidal effects was higher in the glass weeds than in the broadleaf weeds, and the control effects on Amaranthus mangostanus and Bidens tripartita among the broadleaf weeds tended to be higher than those of Acalypha australis, Galinsoga ciliata, and Commelina communis. As a result of analyzing the components of essential plant oils, the main components of clove oil were caryophyllene (44.61%) belonging to squiterpene and eugenol (38.93%) belonging to phenolpropanoids, and the main components of pine oil were (+)-3-carene (38.53%), α-terpinolen (23.15%) and limonene (10.86%) belonging to monoterpene.
Agrobacterium에 의해 형질전환된 페츄니아 계통들 간의 제초제 Glufosinate 저항성 차이 검정
박상미(Sang-Mi Park),이증주(Jeung-Joo Lee),하영민(Young-Min Ha),김주현(Zhoo-Hyeon Kim) 한국원예학회 2005 원예과학기술지 Vol.23 No.1
This experiment was conducted to develop a simple method for evaluating the difference in glufosinate tolerance levels of Agrobacterium mediated transgenic petunia lines, having bar gene. Wild type plants were discolored to yellow after 3 days of 0.72% glufosinate foliar spray, and killed within 7 days, while three transgenic lines still survived. On the other hand, in the response of transgenic lines to glufosinate they showed much differences each other: T?1, transgenic line, was little damaged, however T?30 and T?57, other two lines, were injured more or less. But the injured transgenic lines soon grew new shoots again. The PAT activity of transgenic lines and wild type plants was analysed before glufosinate treatment, and the chlorophyll content was measured before and 3 days after glufosinate foliar spray. The PAT activity and chlorophyll content of transgenic plants were higher than that of non-transgenic wild type plants, but among transgenic lines much differences were observed also. The plant to have higher phosphinothricin acetyltransferase (PAT) activity showed more chlorophyll content with high correlation (r=0.738**). Therefore it was suggested that the measurement of chlorophyll content is more effective method than that of measuring PAT activity for evaluation of tolerance to glufosinate of the lines transformed with bar gene. This chlorophyll content measurement method was applied to evaluate glufosinate tolerance of 17 transgenic lines, and their glufosinate tolerance level could be quantified easily.