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잎稻熱病 發生에 미치는 溫度, 相對濕度 및 잎表面上의 水分存在時間의 影響
崔宇政,朴恩雨,李銀鍾 한국응용곤충학회 1987 한국응용곤충학회지 Vol.26 No.4
도열병균(稻熱病菌)(Pyricularia oryzae)의 포자발아(胞子發芽)에 가장 적합한 온도는 였으며, 발아(發芽)에 필요한 최소한의 수분존재시간(水分存在時間)은 4시간으로 나타났고, 에서는 발아율(發芽率)이 10% 이하로 낮게 나타났다. 포자발아(胞子發芽)에 대한 상대습도의 영향은 고온(高溫)인 에서만 차이가 있었고 나머지 처리에서는 유의적(有意的)인 차이가 없었다(P>0.05). 발병효율(發病效率)은 에서 가장 높게 나타났으며 와 에서는 에 비해 약 20% 정도였다. 주당(株當) 1개 이상의 병반(病斑)을 형성하는데 필요한 평균수분존재시간(平均水分存在時間)은 에서 22시간, 에서 16시간, 에서 10시간, 에서는 8시간이었으며, 에서는 주당(株當) 1개 이상의 병반(病斑)을 형성하지 못하였다. 접종(接種)후 병반(病斑) 발현시(發現時)까지의 잠복기간(潛伏其間)은 에서 일(日), 에서는 약 일(日), 에서는 일(日)이었다. 병반(病斑) 크기 증가율(增加率)은 온도 및 습도조건과 밀접한 관계를 보였다. 1일당(日當) 평균(平均) 병반(病斑) 크기 증분(增分)은 상대습도 90% 이상인 경우, 와 에서 0.7mm, 에서 1mm, 에서는 0.8mm 였고, 상대습도 85% 이하에서는 를 제외한 온도 조건에서 90% 이상에서의 증분(增分)의 밖에 되지 않았다. The optimum temperature range for conidial germination of Pyriculacia oryzae on a slide glass was , at which at least four hours of leaf wetness period was required to germinate. Conidial germination was significantly reduced under dry conditions (relative humidity<85%) at but not at lower temperature (18, 22, 26, ). Number of lesions developed were greater at than at other temperature tested. The average leaf wetness period required for production of a lesion per plant was 22 hours at , 16 hours at , 10 hours at , and 8 hours at . Less than one lesion per plant occurred at even under 24 hours of leaf wetness period. The time period between inoculation and lesion appearance was days at , days at and , and days at . The time period required for lesion appearance after inoculation was not affected by leaf wetness period and relative humidity. Lesion length increased most rapidly at during the first four days after lesion appearance. Thereater, the rate of increase in lesion length was geratest at . The average increment of lesion length per day when relative humidity was greater than 90% was 0.7mm at , 1mm at , and 0.8mm at . When relative humidity was less than 85%, the increments of lesion length per day were approximately of those under humid conditions (relative humidity>90%) at all temperature regimes except . Relative humidity did not significantly affected lesion length at .
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당뇨병성 신증 환자 20예에서 복합한약전탕액이 신기능에 미치는 영향
최우정,김동웅,신선호,이언정,최진영,신학수,조권일,이광석 대한동의생리학회,대한동의병리학회 2003 동의생리병리학회지 Vol.17 No.2
Diabetic Nephropathy is one of the major causes of chronic renal failure. It is a common microvascular complication and clinically defined as the presence of persistent Proteinuria. We studied the effects and change of the renal function of Complex Herbal medication of the 20Diabetic Nephropathy patients. We measured the initial levels of Total Protein, Creatinine Clearance Rate(Ccr), Serum Creatinine(Serum-Cr), Urine Creatinine(Urine-Cr) and HbA1C on admission and followed up the level changes of Total Protein, Ccr, Serum-Cr and Urine-Cr on discharge. The results are following : Complex Herbal Medication does not cause the renal toxicity. The longer hypertension period is, the higher Serum-Cr level and Urine-Cr level. In an older age group, Urine-Cr is lower. 4.From the "Deficiency in Origin and Excess in Superficiality(本虛表實)“points of view, Complex Herbal Medication improves the Serum-Cr in Diabetic Nephropathy patients. According to this results, it could be suggested that Complex Herbal Medication does not cause the renal toxicity in Diabetic Nephropathy patients and intensive controls of blood sugar, blood pressure and Complex Herbal Medication prevent the renal failure in Diabetic Nephropathy patients with early stage of Microalbumiuria.
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최우정,이계한,이승헌,김한용,이상모 한국환경농학회 2010 한국환경농학회지 Vol.29 No.4
Carbon isotope ratio (13C/12C, expressed as δ13C) of tree ring can be proxy of atmospheric CO2 concentration ([CO2]) due to the inter-correlation between atmospheric [CO2], δ13C of atmospheric CO2, and δ13C of plant tissue that assimilates atmospheric CO2. This study was conducted to investigate if δ13C of tree ring of Pinus densiflora in polluted area may show a lower value than that in unpolluted area and to explore the possibility of reconstructing atmospheric [CO2] using its relationship with δ13C of tree ring. During the period between 1999 and 2005, δ13C of tree annual ring tended to decrease over time, and the δ13C in polluted area (-27.2‰ in 2009 to -28.3‰ in 2005) was significantly (P<0.001) lower than that (-26.0‰ in 1999 to -27.1‰ in 2005) in unpolluted area. This reflects a greater emission of CO2 depleted in 13C in the polluted area. Atmospheric [CO2] was significantly (P<0.01) correlated with δ13C of tree ring in a linear fashion. Using the linear regression equation, atmospheric [CO2] in the polluted area was estimated to range from 392.3 ppm in 1999 to 410.9 ppm in 2005, and these values were consistently higher than the national atmospheric [CO2] monitored at the Anmyoundo meteorological station (from 370.7 ppm in 1999 to 387.2 ppm in 2005). Our study suggested that it is possible to reconstruct atmospheric [CO2] in a certain area using the relationship between tree ring δ13C and atmospheric [CO2].
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