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호남지역 구석기시대 망치돌연구 -MIS 3〜MIS 2 시기 유적을 중심으로-
은종선(Eun, Jong-Sun) 한국구석기학회 2016 한국구석기학보 Vol.- No.34
본 연구는 구석기시대 기후변화에 적응하며 나타난 석기문화를 망치돌의 변화양상을 통해 확인하고자 하였 다. 이를 위해 유적에서 출토되는 망치돌의 형태와 공반되는 유물, 제작도구, 석기제작기술의 변화를 통하여 망치돌의 시기적 변화과정을 추정하였다. 이러한 연구를 통해 몇 가지 결론을 내릴 수 있었다. 망치돌은 시기별 형태변화를 보인다. 망치돌의 형태는 타원형의 망치돌에서 원형의 형태로 변화하는 양상이 확인되며, 크기는 점점 작아지는 특징을 보인다. 망치돌의 사용기술은 시기별로 큰 변화를 보이지 않는다. 망치돌의 사용면의 분석 결과 구석기시대 동안 망치돌의 사용면은 크게 변화하지 않는다. 그리고 모룻돌과 공반되어 확인되는 망치돌의 사용면은 공반하지 않은 유적과 비교하였을 때 차이를 보이지 않은 것으로 보아 모룻돌을 사용하는 제작기술에서도 망치돌의 사용기술은 변화하지 않는 것으로 판단된다. 망치돌은 MIS 2시기에 접어들어 사슴뿔이나 뼈 등의 연질계의 망치를 사용한 간접타격법의 사용과 눌러떼기 기술 등의 도입으로 감소하는 변화가 관찰된다. 이를 통해 보았을 때 호남지역 구석기시대 석기제작 기술의 발전은 단순한 기술진화가 아닌 환경, 식량자원 등으로 인한 장기간에 걸친 진화의 흐름으로 볼 수 있다. The purpose of this study is to identify stone tool culture which was affected by climate change in the Paleolithic age by researching aspect of change of hammer stone. This research looks at the chronological change of hammer stone through examination of the stone in sites, associated artifacts, tool kit, and transition of technique of making tools. The anticipated outcome of this study is as following; First of all, hammer stones have time-periodic characteristic, and they seemed to have changed to be a shape of circles and their size was likely to be getting smaller. Second, it is found out that there was not remarkable change of the technique of using hammer stone, and that the side of the hammer stone which was mainly used did not vary during Paleolithic age. There is no difference in the usable area of a hammer stone in the site where both Anvil was found and not found. Judging from this, the technique of using a hammer stone had not been changed a lot even when there was technique to make Anvil. Third, there is an observable change that the use of a hammer stone gradually decreased because of the introduction of pressure technique which is the arts of making blade and microlithic, and change of tools such as deer horn and bones. Development of making stone tools in Paleolithic age in Honam province can’t be regarded as just an unilinear technique improvement but as an evolution by the environment and food resource for a long gap of time. This research covers the change of hammer stone as a making tool and stone tool culture according to climate change in Paleolithic age in Honam province. Study on hammer stone have not been conducted a lot so far. But this research highlights various change of hammer stone by transition of the stone tool culture. We hope there will
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온도, 광도 및 CO₂ 의 농도가 고추냉이의 광합성과 호흡에 미치는 영향
최선영(Sun Young Choi),이강수(Kang Soo Lee),은종선(Jong Seon Eun) 한국약용작물학회 1995 한국약용작물학회지 Vol.3 No.3
This study was carried out to know the effect of temperature, light intensity and CO₂ concentration on photosynthesis and respiration in Wasabi(Wasabia japonica Matsum). The optimum temperature for photosynthesis in Wasabi was 17∼20℃ and dark respiration rate was increased with the increasing of temperature from 15℃ to 30℃. Light compensation point was 6.0μE m<sup>-2</sup>s<sup>-1</sup> in Wasabi and 36.7μE m<sup>-2</sup>s<sup>-1</sup> in Corn. and light saturation point was 600μE m<sup>-2</sup>s<sup>-1</sup>, similar in Wasabi and Corn. CO₂ compensation point was 67.3ppm in Wasabi and 11.6ppm in Corn. Photorespiration rate in Wasabi leaf at 1000μE m<sup>-2</sup>s<sup>-1</sup> light intensity was 3.3 mgCO₂ dm<sup>-2</sup>hr<sup>-1</sup>, and then was gradually decreased as light intensity decreased. Stomatal frequency was about 76mm<sup>-2</sup> on the adaxial surface and 623mm<sup>-2</sup> on the abaxial surface, and the size of stomata was about 12㎛ on the adaxial surface and 17㎛ on the abaxial surface of the leaf.
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산호수 (Ardisia pusilla DC.)의 기내 대량번식
강관호,오월선,구대회,은종선,김형무,Kang Gwan-Ho,Oh Owel-Sun,Goo Dae-Hoe,Eun Jong-Seon,Kim Hyung-Moo 한국식물생명공학회 2005 식물생명공학회지 Vol.32 No.4
우리나라 자생식물인 산호수 (Ardisia pusilla DC)를 기내에서 대량증식하기 위하여 초대배양으로 산호수 경정을 MS, 1/2MS 배지에 BA와 TDZ의 농도를 달리하여 첨가된 배지에 치상하여 배양하였다. 무기염류를 달리한 배지와 생장조절물질 농도를 다르게 한 배지 중 1/2MS 배지에 BA 0.5mL가 첨가된 배지가 신초 수 7개 이상으로 증식이 양호하여 산호수의 초대배양에 적정배지로 나타났다. TDZ를 첨가한 배지에서는 캘러스형성이 과다하여 부정아 형성을 오히려 방해하여 BA 첨가배지보다 신초증식이 양호하지 못하였다. 신초의 증식을 위해 1/2 MS 배지에 BA 0.5 mg와 sucrose의 농도를 달리하여 첨가한 결과, sucrose 농도 20 g/L를 첨가한 배지에서 신초의 증식, 생장 및 다아체 형성이 양호하였다. 형성된 신초의 발근은 1/2MS 배지에 IBA, NAA를 각각 첨가한 배지를 사용하였는데 두 가지 옥신류에서 0.5 mg의 농도에서 신초의 생장과 발근이 양호하였다. 잎과 뿌리가 잘 발달한 유식물체를 원예용 상토에 옮겨 키웠을 때 모든 개체가 정상적인 형태로 성장하였다. To establish the mass proliferation system of Ardisia pusilla DC, the shoot tips of Ardisia pusilla DC were cultured on the MS and half-strength MS medium supplemented with $0{\sim}5.0$ mg/L BA or $0{\sim}0.5$ mg/L thidiazuron(TDZ), respectively. A few multiple shoot formation observed when the shoots were cultured on MS medium containing TDZ. However, the frequency of multiple shoot formation was reached up to 82.4%, when the shoots were cultured on half-strength MS medium supplemented with 0.5 mg/L BA. Also the number of shoot per explant was 7.1. To promote rooting from multiple shoot, newly formed shoots were transferred to half-strength MS medium containing 0.5 mg/L IBA or 0.5 mg/L NAA, respectively. Regenerated plantlets were grown to normal mature plants in soil.
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人爲突然變異 利用에 依한 小麥品種改良 Ⅰ. 小麥에 대한 γ 線과 EMS의 處理効果
Kun Hyuk Im(任建爀),Shin Han Kwon(權臣漢),Cheong Yeol Sohn(孫淸烈),Jong Sun Eun(殷鍾旋) 한국육종학회 1969 한국육종학회지 Vol.1 No.1
As basic research to select useful mutants, this experiment was conducted to investigate biological response in M₁seedlings of wheat varieties, Yongkwang and Jaekwang, treated with gamma ray and EMS. On dormant seeds, gamma ray treatment was performed at the dosage of 5, 10, 15, 20, 30, 40 and 50 kr, and EMS at the concentration of 0.05, 0.075, 0.10, 0.15, 0.20, 0.25 and 0.30 mole. No effect in germination rate was found in variety Yongkwang by gamma ray irradiation, while significant effect was observed in Jaekwang, although it was not in proportion to the dosage. In emergence rate, significant decrease was shown in both varieties with the gamma ray treatment. As the EMS concentration increased, significant reduction in germination and emergence rate was observed in both varieties. Germination speed was not influenced with the gamma ray treatment, whereas it was slowed with the increase in EMS concentration. In both varieties, seedling survival rate 45 days after sowing was not affected by either gamma ray or EMS treatment. The growth of young roots, seedlings and young leaves was gradually inhibited with the increase of gamma ray dose and EMS concentration. On the basis of the above results, 50 per cent growth reduction dosage or concentration was determined in this study, and it was found that radiosensitivities of the wheat was dependent on varieties and mutagens. 本 實驗은 小麥品種 永光과 再光에 gamma線과 EMS를 處理하여 有用變異體를 選拔하는 過程 中에 얻은 M₁幼植物體의 生物學的 反應을 調査한 것이다. (1) 發芽率에 對한 gamma線 處理效果는 永光에서는 없었으나 再光은 線量에 比例하지는 않으나 有意性이 있었고, 成苗率은 兩 品種 모두 有意한 減少를 보였다. 그리고 EMS處理效果는 發芽率과 成苗率이 兩 品種에서 濃度增加에 따라 모두 有意性있게 減少하였다. (2) 幼苗 生存率에 있어서는 gamma線과 EMS處理效果가 없었다. (3) 幼根, 幼苗 그리고 本葉의 生長은 gamma線과 EMS處理에 對한 障害가 處理量 增加에 따라 直線的으로 增加하였다. (4) 品種에 따라 mutagen에 對한 生物學的 反應이 相異할 뿐 아니라 同一品種 內에서도 mutagen 種類에 따라서 差異를 보이고 있다.
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