꼬마배나무이 (Cacopsylla pyricola)에 저항성 품종육성을 위한 육종재료를 선발코자 월동형 성충수, 단과지내의 산란수, 과총엽내의약충수 및 수관 전체적인 그을음 발생정도를 15개 종 및 종간잡종133개 유전자원을 대상으로 조사하였다. 월동형 성충수는 Pyrus.calleryana 4.6마리, 단과지내 산란수는 P. calleryana 0.3개, 과총엽내약충수는 P. calleryana 0마리, 그리고 그을음 발생정도는 P.betulaefolia, P. calleryana, P. communis, P. hybrid (P.pyrifolia × P.communis), P. lindleyi 0으로 발생 및 피해정도가 가장 낮았으며 종간의 차이가 뚜렷하였다. 전체적으로 대목으로 이용하고 있는 콩배인P. calleryana와 P. betulaefolia가 조사 대상 유전자원 중 가장 높은 항객성(antixenosis)을 보였으나 품질개량에 많은 기간이 요구됨에 따라 실용적으로는 서양배(P. communis) 중 ‘Conference', 'Cascade','Bosc', 'Winter Nelis' 가 가장 낮은 발생 및 피해정도를 보여 꼬마배나무이 저항성 품종 육성을 위한 좋은 육종재료로 판단되었다.

In higher plants, formate dehydrogenase (FDH; EC 1.2.1.2) is a NAD-dependent enzyme that catalyzes the oxidation of formate into carbon dioxide. Although FDHs have been reported to be induced by various abiotic stresses, the function of FDHs in biotic stress is rarely known. In this work, we describe the identification of pepper mitochondrial FORMATE DEHYDROGENASE1 (CaFDH1) as a positive regulator of cell death and disease resistance. Transient expression of CaFDH1 in Nicotiana benthamiana leaves caused hypersensitive response (HR)-like cell death, where D-isomer specific 2-hydroxyacid dehydrogenase signature was crucial for the induction of the cell death. Localization analysis using green fluorescence protein showed that CaFDH1 targeted to the mitochondria with the mitochondria targeting sequence at N-terminal region. However, the mitochondrial localization of CaFDH1 is not essential for the induction of HR-like cell death, because the cytosolic CaFDH1 could elicit cell death response. Silencing of CaFDH1 in pepper significantly compromised the cell death response and salicylic acid (SA) levels, but enhanced growth of Xanthomonas campestris pv. vesicatoria. In contrast, transgenic Arabidopsis overexpressing FDH1 exhibited enhanced resistance to Pseudomonas syringae pv. tomato. Taken together, these data suggest that CaFDH1 has a role in HR cell death and defense response to microbial pathogens.

Oil and fatty acid composition of 648 soybean germplasms of different categories including Korean and American source were analyzed by NIRS (Near Infrared Reflectance Spectrophotometer) method at Yeongnam Agricultural Research Institute, Milyang, Korea. A

Oil and fatty acid compositions of 1,429 germplasms including 1,121 cultivated soybeans for sprout production and 308wild soybeans were analyzed by the NIRS (Near Infrared Reflectance Spectrophotometer) method at Yeongnam AgriculturalResearch Institute, M

“Jokyoung”, a new bread making wheat cultivar, was developed from the cross between “Seri 82”, a hard white wheat from CIMMYT, Mexico and “Keumkang”, a hard white wheat with high milling rate and early maturing from Korea by National Institute of Crop Sci