• 한국자원식물학회지
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• 제20권1호
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• pp.79-85
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• 2007

북극지역에 분포하는 Saxifraga 속에 식물종들은 분류가 까다롭고 연구보고가 매우 적다. 북극권인 노르웨이령 Svalbard와 한국에서 수집된 16종의 Saxifraga 속 식물의 RAPD를 통하여 유전적 다형성을 비교하였다. 실험에 활용한 12 종류의 URP primer 중 4종의 primer를 이용하여 총 79개(44.8%)의 다형성을 가진 DNA 밴드를 선발하여 UPGMA 분석으로 유전적 다형성을 비교하였다. 그 결과 북극 Svalbard에서 수집된 9종의 Saxifraga 속 식물들이 한국에서 수집된 종들에 비해 유전적 다형성이 큰 것으로 확인되었다. 유사도 매트릭스를 활용한 분석 결과는 두 지역에 수집된 종들간에 비교적 뚜렷한 구룹을 형성하였으며, 한국 분포종의 RAPD는 북극 Svalbard 지역에 분포하는 종들에 비해 유사도가 높은 것으로 분석되었다. 본 연구를 통하여 우리는 두 지역에 분포하는 종들 간의 형태적 유사성이 유전적 유사성과 일치하고 있음을 확인하였다. 또한 분석 결과를 통하여 두 지역간의 지리적 격리, 집단내 영양 생식, 그리고 두 지역간의 환경조건의 차이가 높은 수준의 유전적 다형성을 형성하는 요인이 될 것으로 추론할 수 있었다.

• 한국환경과학회지
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• 제19권5호
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• pp.585-590
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• 2010

This study attempted to facilitate various groundcover plants, related to phytoremediation material, and advance shade plants with a heavy metal tolerance to contaminated soil in an urban shade space. Saxifraga stolonifera, which has commonly been used a landscape shade plants, was evaluated to determine its heavy metal tolerance to different concentrations(Control, $100mg{\cdot}kg^{-1}$, $250mg{\cdot}kg^{-1}$ and $500mg{\cdot}kg^{-1}$ treatment) of Cd, Pb and Zn in soil. The growth of Saxifraga stolonifera showed no significant tendency after the initial transplantation, but showed distinct changes with the respective treatment heavy metal types and concentrations over time. Especially, severe chlorosis, with more yellowish green leaves, was observed, with inhibition at Cd concentrations greater than $100mg{\cdot}kg^{-1}$. Conversely, no external symptoms or growth retardation were observed with Pb and Zn concentrations less than $500mg{\cdot}kg^{-1}$. Therefore, Saxifraga stolonifera can be applied as a long term phytoremediation species in soil contaminated with low concentrations of heavy metal in urban shade spaces.

• 식물분류학회지
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• 제52권4호
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• pp.251-254
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• 2022

Saxifraga cortusifolia Siebold & Zucc. (Saxifragaceae, sect. Irregulares, ser. Rufescentes), a species considered endemic along mountain streams throughout Honshu, Shikoku, and Kyushu in Japan, was discovered as a wild population in the Cheona Valley in Haean-dong, Jeju-si on Jeju-do Island of Korea. The population consisted of three subpopulations occupying narrow areas 10 × 10 m², 5 × 5 m², and 10 × 5 m² in size. The number of individuals in the three subpopulations was confirmed to exceed 100. Most of the individuals were on or below rocks at the edge of the valley. A morphological description, detailed photos, and a key to related taxa in Korea are presented.

• 한국자원식물학회지
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• 제20권1호
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• pp.86-88
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• 2007

바위취의 토양산도별 생육특성을 보면 초장, 엽수, 엽장, 엽폭 그리고 초폭에 있어서 모두 pH 4.5에서 생육량이 많았으며 pH가 높을수록 생육량이 현저하게 떨어지는 경향으로 통계적인 유의성이 인정되었다. 따라서 바위취 분화생산시 경량 배양토의 토양산도를 $pH4.5{\sim}5.0$ 정도로 맞추어 주는 것이 pH 6.0보다 초기 활착이 빠르고 생육이 양호하며 균일성이 높아지는 것으로 나타났다.

• 식물분류학회지
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• 제48권1호
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• pp.43-47
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• 2018

Pimpinella saxifraga L. (Scarlet pimpernel or Burnet saxifrage), a newly introduced species, was found from Baekyakyi oreum (a parasitic cone or cinder cone) in Seogwipo, Jejudo Island. This species is native to Europe and western Asia and is reported as a widely invasive species around the world. Pimpinella saxifraga is distinguished from other related Korean taxa by leaves that are pinnately compound with 3-7 pairs of segments, which vary from simple, ovate, to 2-pinnatisect, with linear lobes. The vernacular name of "Baek-yak-yi-cham-na-mul" was assigned after the name of the cinder cone where it was initially discovered. We provide descriptions of the morphological characters, photographs and a key to allied taxa in Korea. The geographical origin and introduction routes are unknown, but it is highly likely that it was introduced as fodder given its high nutritious value for sheep and cattle or as a medicinal herb. This species invades commonly grasslands and woodlands and prefers dry, well-drained, and calcareous soils. The distribution of this species was analyzed by searching extensively in surrounding Baekyakyi oreum and adjacent cinder cones, but no other populations were observed. It is protected commonly at the edges or inside of the patchy pine forest in the cinder cone from grazing by cattle; given the worldwide invasive nature of this species, special monitoring and management plans should be developed.

• 약학회지
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• 제51권5호
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• pp.343-349
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• 2007

To investigate the effect of ethanol extract of Saxifraga stolonifera MEERBURGH on skin care, we measured anti-oxidant and anti-aging activity. S. stolonifera ethanol extract itself had anti-oxidant activity in a dose-dependent manner in DPPH radical scavenging. Silica dose-dependently increased the intracellular ROS generation in RAW 264.7 cells. S. stolonifera ethanol extract inhibited silica-induced intracellular superoxide anion generation, $H_2O_2$ and hydroperoxide generation in RAW 264.7 cells. S. stolonifera ethanol extract significantly inhibited both hyaluronidase and elastase activity, also significantly inhibited MMP-1(collagenase) activity as well. In NIH 3T3 fibroblast cells, S. stolonifera ethanol extract significantly increased collagen-like polymer synthesis, which suggesting the S. stolonifera ethanol extract might be used as hydration and anti-wrinkle agents. From the above results, it is suggested that the main ingredients of S. stolonifera ethanol extract play an important role in anti-oxidant and anti-aging activity.

• 조경수
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• 통권98호
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• pp.26-28
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• 2007

• 조경수
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• 통권106호
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• pp.25-28
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• 2008

• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제3권3호
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• pp.139-148
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• 2022

Saxifraga hirculus is classified as a vulnerable plant species in Europe, and it is confined to base-rich flushes in the British uplands. However, a lack of available information about its conservation status hampers the development of adaptive strategies for its in-situ conservation, especially with respect to grazing. To assess the effectiveness of sheep grazing in maintaining viable populations of S. hirculus, we compared the community dynamics of the vegetation in a base-rich flush over 44 years in two plots: one sheep-grazed under business-as-usual sheep grazing densities and the other fenced to exclude grazing. The plots were established in 1972, and the abundances of all vascular plants, bryophytes, and litter were measured at six intervals until 2016. Our results showed that although the presence of S. hirculus was maintained in both plots over the 44 years, it declined and reached a minimum between 1995 and 2010, when it was close to extinction. Since 2013, Saxifraga has recovered only slightly. Interestingly, the S. hirculus response appeared to be independent of grazing treatment, but it mirrored wider changes in the vegetation composition and structure within the flush over the 44 years. These changes are similar to others reported in broader uplands that have been attributed to a combination of reduced nitrogen and sulfur deposition and global warming. Thus, the simple adaptive management approach of "just managing" sheep grazing appeared ineffectual for preserving the S. hirculus population. S. hirculus showed signs of recovery at the end of the study period within this base-rich flush.

• 한국환경복원기술학회지
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• 제11권6호
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• pp.73-80
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• 2008

본 연구는 남부상록수종 중 내음성과 내한성이 강하고 자생 송악(Hedera rhombea)에 대한 적정 실내광원과 광도를 알아보고자 가로 1m${\times}$세로 1m${\times}$높이 1m 크기의 목제프레임에서 실험을 실시하였다. 광원의 선정기준은 현재 지하철에 가장 많이 활용되는 인공광인 형광등, 삼파장형광등, 할로겐등으로 하고, 광도는 200Lux, 700Lux, 1,000Lux로 설정하여 실험을 실시한 결과는 다음과 같다. 1.송악(Hedera rhombea) 초장은 광원과 광도별 뚜렷한 통계적 유의성이 나타나지 않았으나, 할로겐등>형광등>삼파장형광등 순으로 광도별로는 1,000Lux>700Lux>200Lux 순으로 길었다. 분지수는 형광등이 삼파장형광등이나 할로겐등보다, 광도가 높을수록 많아지는 경향을 보였다. 엽수는 삼파장형광등 1,000Lux>형광등 1,000Lux>할로겐등 1,000Lux 순으로 나타났다. 엽장과 엽폭은 광원에 관계없이 광도가 낮을수록 넓어지는 경향을 나타났다. 엽록소함량은, 삼파장형광등과 할로겐등은 광도에 따른 차이를 볼 수 없었으나, 형광등에서는 200Lux>700Lux>1,000Lux 순으로 증가되었다. 송악의 전체적인 생육은 인공광원보다는 광도에 의해 확연한 차이를 보여, 지하철 실내식물로 200Lux라는 낮은 광도에서도 도입이 가능하나 원활한 생육을 위해서는 700Lux 이상으로 광도를 조절하는 것이 바람직하다. 2. 바위취(Saxifraga stolonifera)형광등이 광원인 경우, 광도와 무관하게 80% 이상이 고사하거나 생육 상태가 좋지 않았다. 광도가 200Lux에서는 광원에 무관하게 생육 상태가 매우 불량하였다. 초장, 엽수, 분지수, 엽장, 엽폭 등 생육은 할로겐 1,000Lux>삼파장형광등 1,000Lux>삼파장형광등 700Lux순으로 증가하였다. 엽록소함량은 삼파장형광등 700Lux>삼파장형광등 1,000Lux>할로겐등 1,000Lux순으로 높았다. 따라서, 본 실험에서 바위취는 할로겐등에서 가장 좋은 생육을 나타내었으며, 형광등의 광원과 700Lux 이하 광도에서는 현장적용이 불가능한 수종임이 확인되었다.