Micrococcus lutus is common gram-positive aerobic cocci present in soil, water, dust, and the skin of humans and animals. A 72-year-old man was admitted to the hospital with a complaint of abdominal pain and a turbid peritoneal dialysate. He was empirically treated with intraperitoneal (IP) cefazolin and ceftazidime. Seven day after admission, Gaffkya species was identified from the peritoneal effluent. He was treated with same organism one month ago and discharged with the dialysis catheter intact. So, we suspected that organism is true pathogen, and identified M. luteus by culture. We changed the antibiotics to cefoxitin, which were given for the total of 14 days. This is the first report of relapsing peritonitis by M. luteus and successful treatment without catheter removal.

The objective of this study was to rapidly evaluate fatty acids in a collection of foxtail millet (Setaria italica (L.) P. Beauv) of different origins so that this information could be disseminated to breeders to advance germplasm use and breeding. To develop the calibration equations for rapid and nondestructive evaluation of fatty acid content, near-infrared reflectance spectroscopy (NIRs) spectra (1104-2494 nm) of samples ground into flour (n=100) were obtained using a dispersive spectrometer. A modified partial least-squares model was developed to predict each component. For foxtail millet germplasm, our models returned coefficients of determination (R2) of 0.91, 0.89, 0.98 and 0.98 for strearic acid, oleic acid, linoleic acid, and total fatty acids, respectively. The prediction of the external validation set (n=10) showed significant correlation between references values and NIRs values (r2=0.97, 0.91, 0.99 for oleic, linoleic, and total fatty acids, respectively). Standard deviation/standard error of cross-validation (SD/SECV) values were greater than 3 (3.11, 5.45, and 7.50 for oleic, linoleic, and total fatty acids, respectively). These results indicate that these NIRs equations are functional for the mass screening and rapid quantification of the oleic, linolenic, and total fatty acids characterizing foxtail millet germplasm. Among the samples, IT153491 showed an especially high content of fatty acids (84.06 mg g-1), whereas IT188096 had a very low content (29.92 mg g-1).

개가시나무 가지의 에탄올 추출물에서 항산화활성을 관찰하였으며, 활성성분을 규명하기 위한 연구를 진행하였다. 그 결과, 4종류의 화합물을 분리하여 동정하였다. 분리 동정된 성분은 catechin(1), epi-catechin(2), tyrosol(3) 및 tiliroside(4)이다. 분리 성분의 항산화활성은 DPPH 라디칼 및 superoxide 음이온 라디칼 소거활성을 이용하여 측정하였다. 화합물 1, 2, 3, 4는 100 µL/mL 농도에서 각각 94.2 %, 93.4 %, 33.6 %, 11.2 %의 DPPH 라디칼 저해활성을 나타내었다. 또한, 화합물 1, 2, 3, 4는 200 µL/mL 농도에서 각각 60.2 %, 35.1 %, 20.6%, 4.5 %의 superoxide 음이온 라디칼 저해활성을 나타내었다. 화합물 1 ∼ 4는 개가시나무에서는 처음으로 분리된 물질이다.

This study was conducted to determine the efficient regeneration condition for perilla (Perilla frutescens cv. Yeupcildllggae). Leaf, cotyledon and hypocotyl explants were excised from perilla plants 10-12 days after germination and subjected to regenerat

Regeneration ability of plant is very important for producing transgenic plants by genetic engineering. Fifty rice cultivars and lines were screened for their regeneration ability in vitro and an attempt was made to increase shoot regeneration by substitu