• 문화기술의 융합
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• 제7권2호
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• pp.339-343
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• 2021

본 연구는 복숭아 '천홍'의 착과 수준(fruiting level, FLs)을 3수준(FL-Low, Middle, High)으로 하여 결과지의 신초 발달과 성숙 과실의 무게 및 당도를 비교하였다. 결과지당 신초수 분포 비율에서는 FL-Low의 1-2개(42%), FL-Middle의 1개(47%), FL-High의 1개(42%)에서 가장 높았다. 과실 무게 및 당도 분포 비율에서는 FL-Low의 210-270g (50%) 및 10-12Brix (44%), FL-Middle의 180-240g (60%) 및 10-12Brix (59%), FL-High의 180-240g(60%) 및 11-13Brix (48%)에서 가장 높았다. 그리고 FL-High에서만 과중과 결과지 신초수 간 상관성을 나타내었다. 그리고 당도(y)에 대하여 과실 무게(x)는 FL-L에서 y=0.0126x+8.1857, 그리고 결정계수((R²)가 0.1964으로 P≤0.01 유의수준에서 매우 높은 관계성이 인정되었다.

• Mycobiology
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• 제31권4호
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• pp.205-208
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• 2003

The production of polysaccharide according to various developmental stages(mycelium growth, primordium appearance, and fruiting-body formation) in the edible mushroom Grifola frondosa was studied. The cap of the mature mushroom showed the highest amount of polysacchride. Mycelial growth and polysaccharide synthesis were optimal at pH 5 and $20^{\circ}C$. Polysaccharide synthesis was maximal after 12 days of cultivation, whereas maximum mycelial growth was shown after 18 days. Mannose, cellobiose and starch increased the level of polysaccharide as well as growth in submerged culture. Glucose and sucrose appeared to be good substrates for fruiting of Grifola frondosa.

• Journal of Ecology and Environment
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• 제41권9호
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• pp.256-264
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• 2017

Background: The aim of this study was to clarify the relationship between the sexual reproduction and the resource allocation in a natural Polygonatum humile population grown in a temperate mixed forest gap. For this aim, the plant size, the node which flower was formed, the fruiting rate, and the dry weight of each organ were monitored from June 2014 to August 2015. Results: Firstly, in 3-13-leaf plants, plants with leaves ${\leq}8$ did not have flowers and in plants with over 9 leaves the flowering rate increased with the number of leaves. Among plants with the same number of leaves, the total leaf area and dry weight of flowering plants were larger than those of non-flowering plants. The minimum leaf area and dry weight of flowering plants were $100cm^2$ and 200 mg, respectively. Secondary, the flowers were formed at the 3rd~8th nodes, and the flowering rate was highest at the 5th node. Thirdly, cumulative values of leaf properties from the last leaf (the top leaf on a stem) to the same leaf rank were greater in a plant with a reproductive organ than in a plant without a reproductive organ. Fourthly, fruit set was 6.1% and faithful fruit was 2.6% of total flowers. Biomasses of new rhizomes produced per milligram dry weight of leaf were $0.397{\pm}190mg$ in plants that set fruit and $0.520{\pm}0.263mg$ in plants that did not, and the difference between the 2 plant groups was significant at the 0.1% level. Conclusions: P. humile showed that the 1st flower formed on the 3rd node from the shoot's base. And P. humile showed the minimum plant size needed in fruiting, and fruiting restricted the growth of new rhizomes. However, the fruiting rate was very low. Thus, it was thought that the low fruiting rate caused more energy to invest in the rhizomes, leading to a longer rhizome. A longer rhizome was thought to be more advantageous than a short one to avoid the shading.

• Journal of Nutrition and Health
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• 제34권7호
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• pp.741-747
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• 2001

The effects of fruiting body of Cordyceps militaris on the growth, the food intake, the food efficiency ratio, the lipid metabolism, the serum protein level ad enzyme activity in male rats were studied. Sprague-Dawley rats were fed four types of diets for five weeks, respectiely: a control diet, a control diet supplemented with 2%, 3% or 4% fruiting body of Cordyceps militaris(CF) powder. In rats fed 2% or 3% CF diets the body weight gain, the food intake, the concentratons of hepatic triglyceride and serum LDL-cholesterol, the atherogenic index, and the total lipid, total cholesterol, triglyceride and phospholipid in serum were similar to those in rats fed the control diet. Whereas, in 4% CF diet these were significantly decrased. But the all CF diets feeding could not decrease the food efficiency ratio, the weights of liver, pancreas, spleen, kidney and heart, and the concentration of serum HDL-cholesterol. Also, it was shown that the concentrations of glucose, total protein, albumin, urea and creatinine, and the GOT, GPT, LDH, ${\gamma}$-GTP and ALP activities were the same levels in serum of rats of fed all the experimental diets.

• 생물환경조절학회지
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• 제15권4호
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• pp.385-389
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• 2006

단호박의 억제재배시 착과율 향상 및 유인노력 절감을 위한 한라산 중산간지(해발 600m) 육묘 효과를 검토 하였다. 정식직전 묘의 T/R율은 평지 육묘 9.5로 도장된 경향을 보였으나 중산간지 육묘에서는 5.4로 건실한 묘 생육을 보였다. 육묘 지역에 따른 1번 암꽃의 착생 위치는 평지 육묘 26.0마디에 비하여 중산간지 육묘 19.4마디로 크게 낮아졌으며 2번 암꽃 및 그 이후에 착생되는 암꽃들도 평지 육묘에 비하여 3$\sim$5마디 아래에서 착생되어 유인노력을 20% 정도 절감할 수 있었다. 2번과 착과율은 중산간지 육묘 17.2%로 평지 육묘 1.4%에 비하여 16%정도향상 되었다. 상품 수량의 경우 평지 육묘 3,500kg/10a에 비하여 중산간지 4,460kg/10a로 27%가 증가하여 한라산 중산간지를 이용한 여름철 육묘 효과가 크게 나타났다.

• 대한수의학회지
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• 제45권2호
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• pp.151-154
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• 2005

The purpose of this study is to examine the elemental compositions, antioxidant and antitumor activity of water, 20%, 40%, 60%, and 80% ethanol extracts obtained from the fruiting body of Phellinus gilvus. In electron donating ability test, the strong activities more than 70% were observed in $80{\mu}g/ml$ of 20%, 40%, 60% and 80% ethanol extracts from the fruiting body of P. gilvus grown in oak and sawdust. The antitumor activity was evaluated by sulforhodamine B (SRB) in terms of cell survival level. The tumor cells (sarcoma 180) were treated with various ethanol extracts (water, 20, 40, 60 and 80%). The results showed that all extracts inhibited proliferation showing a dose-dependent manner against tumor cells.

• 한국산림과학회지
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• 제97권1호
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• pp.35-44
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• 2008

목초액의 첨가가 고체 및 액체배지에서의 표고 균사생장에 미치는 영향을 조사한 결과, 고체배지에서는 첨가한 목초액의 종류와 표고 균주들간에 다소 차이가 있었는데, 전통식 목초액은 대체로 희석농도 500배 이하에서 균사생장을 억제하였고 1000~2000배에서는 균사생장을 촉진하였으나 기계식 목초액의 경우는 대체로 1000배 이하에서 균사생장을 억제하였고 2000배에서는 촉진하였다. 액체배지의 경우에는 전통식, 기계식 목초액 모두 희석농도 2000배에서 균사생장을 촉진하였고 500배 농도에서 억제하였다. 목초액을 농도별로 첨가한 배지에서 배양한 표고 균주를 참나무 원목에 접종하였을 경우, 산조302호는 2000배, 산림2호 및 3호는 4000배의 희석농도 배지에서 배양한 균주가 목재부후력과 침투력에서 우수하였고, 목재부후력과 침투력의 정도는 비례하였다. 목초액의 처리가 표고재배시 문제가 되는 병원성 균주에 미치는 영향을 비교한 결과, 전통식 목초액은 50배 희석농도에서 푸른곰팡이 균주의 생장을 모두 억제하였고, 기계식 목초액은 균주에 따라 50배~500배 이하에서 균사생장을 억제하였다. 주홍꼬리버섯에 대하여 전통식 목초액은 500배 이하에서 균사생장을 억제하였고, 기계식 목초액은 500배 이하에서 억제하였으며 100배 희석농도에서 80%, 50배에서 100% 억제하였다. 골목의 목초액 농도별 침수처리에 의한 표고 자실체의 생중량 및 건중량은 모든 처리에서 무처리에 비하여 유의적 증가를 보였으나 특히 250배 희석농도에서 가장 효과가 우수하였다. 목초액을 희석 농도별로 처리하여 생산한 버섯을 $10^{\circ}C$에서 10일간 저장한 후에 조직분석기(Texture analyzer)를 사용하여 전단력을 측정한 결과, 250배 희석농도 처리에 의하여 생산된 버섯이 조직감이 가장 우수하였다. 저장 전후의 버섯함수율은 희석농도별로 유의적 변화가 없었다.

• Mycobiology
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• 제46권4호
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• pp.382-387
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• 2018

The entomopathogenic fungus Cordyceps militaris is a valuable medicinal ascomycete, which degenerates frequently during subsequent culture. To avoid economic losses during industrialized production, scratching stimuli of mycelia was introduced to improve the fruiting body production. The present results indicated that higher yields and biological efficiency were obtained from two degenerate strains (YN1-14 and YN2-7) but not from g38 (an insertional mutant in Rhf1 gene with higher yields and shorter growth periods). Furthermore, the growth periods of the fruiting bodies were at least 5 days earlier when the mycelia were scratched before stromata differentiation. Three ROS-scavenging genes including Cu/Zn superoxide dismutase (CmSod1), Glutathione peroxidase (CmGpx), and Catalase A (CmCat A) were isolated and their expression profiles against scratching were determined in degenerate strain YN1-14 and mutant strain g38. At day 5 after scratching, the expression level of CmGpx significantly decreased for strain g38, but that of CmSod1 significantly increased for YN1-14. These results indicated that scratching is an effective way to promote fruiting body production of degenerate strain, which may be related at least with Rhf1 and active oxygen scavenging genes.

• 한국버섯학회지
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• 제12권4호
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• pp.311-315
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• 2014

느타리버섯은 한국사람들에게 인기있는 버섯이며 새송이버섯, 팽이버섯과 더불어 대부분 많이 재배되어지는 버섯이다. 느타리버섯의 항산화 효능과 폴리페놀 함량을 비교 분석하였다. 항산화 효능을 분석한 결과 열수추출에서는 ASI 2099가 가장 높게 나타났으며, 주정과 메탄올 추출물에서는 ASI 2122가 가장 높게 나타났다. 폴리페놀 성분은 대부분 7~10 mg/g 이었으며, 추출용매별 함량차이는 크지 않았다.

• Food Science and Biotechnology
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• 제15권2호
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• pp.308-311
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• 2006

Saesongi (Pleurotus eryngii) was cultivated in both potato dextrose agar (PDA) and sawdust media supplemented with Ca salts. The addition of Ca phosphate and Ca carbonate to sawdust media did not affect the growth, whereas Ca sulfate addition suppressed the mycelial growth appreciably. The efficiencies of Ca accumulation in the fruiting were studied based on mycelial growth experiments on Ca-supplemented sawdust media. Supplementation with 0.1 to 5% Ca phosphate increased the Ca content in the fruiting body by 4.5-6.5 fold, to a level of $314.6{\pm}22.7$ to $449.7{\pm}29.3$.