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과령, 후숙 여부 및 종자 크기에 따른 'Earth Ace' 멜론 종자의 건열처리 반응
최성민,이정명,백종열 경희대학교 생명자원과학연구원 2004 硏究論文集 Vol.23 No.-
멜론 과실의 년령 및 후숙 여부, 그리고 종자의 성숙정도에 따라 건열처리를 하였을 때 후숙을 시키지 않은 미숙종자에서만 유묘 출현이 다소 저조하였을 뿐 적숙종자와 과숙종자에서는 건열처리를 하지 않은 처리구에 비하여 최종 유묘 출현율에서는 유의차를 보이지 않았다. 그러나 파종 후 7일에 조사된 초기출현율에서는 건열처리에 의해 묘 출현이 현저히 지연되었는데 특히 후숙되지 않은 종자에서 그 정도가 심하였다. 유묘의 생체중과 건조중은 건열처리보다 무건열처리가 약간의 차이로 조금 더 무거웠으며, 건전묘의 발생조사에서는 후숙을 하지 않은 미숙종자를 제외하고는 건열처리 시 모두 양호한 정상묘 출현율을 보였다. 지하부 발달은 모든 처리구에서 건열처리에 따른 특이한 차이는 발견되지 않았다. 결론적으로 완숙한 과실을 수확하더라도 필히 일정 기간 이상의 후숙 과정을 거친 다음에 탈종하여야 건열처리에 의해 유발될지도 모르는 피해나 초기출현 지연현상을 최소화할 수 있었다. Experiments were conducted to investigate the effects of dry heat treatment (DHT) of seeds of 'Earth Ace' melon as affected by fruit maturity at the time of fruit harvest, duration of after-ripening, and seed sizes. Final seedling emergence percentages were not significantly influenced by dry heat treatment, except in those seeds extracted from immature fruit without after-ripening. However, early emergence rate, examined 7 days after sowing, was significantly lower in DHT seeds, especially those seeds extracted from the fruit without after-ripening. Seedlings grown from DHT seeds showed slightly lower seedling fresh and dry weight. No abnormal growth was noticed in root systems in all tested seedlings. In conclusion, a certain period of after-ripening of fruit is judged to be necessary to reduce the possible negative effective of DHT even though in fully-ripen fruits.
Joung, Dae-Ki,Mun, Su-Hyun,Lee, Kuang-Shim,Kang, Ok-Hwa,Choi, Jang-Gi,Kim, Sung-Bae,Gong, Ryong,Chong, Myong-Soo,Kim, Youn-Chul,Lee, Dong-Sung,Shin, Dong-Won,Kwon, Dong-Yeul Hindawi Publishing Corporation 2014 Evidence-based Complementary and Alternative Medic Vol.2014 No.-
<P>Tectorigenin (TTR) is an O-methylated isoflavone derived from the rhizome of <I>Belamacanda chinensis</I> (L.) DC. It is known to perform a wide spectrum of biological activities such as antioxidant, anti-inflammatory, anti-tumor. The aim of this study is to examine the mechanism of antibacterial activity of TTR against methicillin-resistant <I>Staphylococcus aureus</I> (MRSA). The anti-MRSA activity of TTR was analyzed in combination assays with detergent, ATPase inhibitors, and peptidoglycan (PGN) derived from <I>S. aureus</I>. Transmission electron microscopy (TEM) was used to monitor survival characteristics and changes in <I>S. aureus</I> morphology. The MIC values of TTR against all the tested strains were 125 <I><I>μ</I></I>g/mL. The OD(600) of each suspension treated with a combination of Triton X-100, DCCD, and NaN<SUB>3</SUB> with TTR (1/10 × MIC) had been reduced from 68% to 80%, compared to the TTR alone. At a concentration of 125 <I><I>μ</I></I>g/mL, PGN blocked antibacterial activity of TTR. This study indicates that anti-MRSA action of TTR is closely related to cytoplasmic membrane permeability and ABC transporter, and PGN at 125 <I><I>μ</I></I>g/mL directly bind to and inhibit TTR at 62.5 <I><I>μ</I></I>g/mL. These results can be important indication in study on antimicrobial activity mechanism against multidrug resistant strains.</P>
Classification of maturity group in 100 Korea soybean varieties
Sang-Ouk Shin,Tae-Joung Ha,Seong-Hyu Shin,Sea-Gyu Lim,Kyung-Jin Choi,In-Yeul Baek,Keum-Yong Park,Sang-Chul Lee 한국작물학회 2008 한국작물학회 학술발표대회 논문집 Vol.2008 No.10
This study was carried out to classify Korean soybean varieties based maturity group. One hundred (100) domestic soybean varieties ( 56 for fermentation, 26 for sprouting, 17 for mixed with rice) were used and seeding date was scheduled at April 30. This experiment carried out at Yeongnam Agricultural Research Institute, NICE situated at Miryang from 2005 to 2006. Classification of maturity group in 100 soybeans was followed by Kweon et al's method (1974) The main difference between this experiment and that of Kweon et al's method (1974) were the planting region and planting date. This experiment was conducted on April 30 at Miryang while Kweon et al. was conducted on May 23 in Seoul. Results of maturity grouping of Korean soybean varieties showed that Keunol, which was represented among 3 varieties, belonged to Group 0, Seonnok and Danmi in GroupⅡ, Shinrok in GroupⅢ, Seonyu, represented by 17 cultivars, in GroupⅣ, Taekwang, having 44 cultivars in GroupⅤ, Daewon, represented by 25 cultivars in GroupⅥ, and Kwangdu and Keumdu in GroupⅦ.