• 제목/요약/키워드: bio-diversity

검색결과 350건 처리시간 0.023초

서울시내 벽면녹화에 따른 절지동물상 조사 (Investigation of Arthropod Communities of Facade Greenery Zones in Seoul)

  • 이은희;장하경;진영헌
    • 한국환경복원기술학회지
    • /
    • 제3권4호
    • /
    • pp.74-83
    • /
    • 2000
  • Facade Greenery requires little earth and, because it grows vertically, it provides a lot of bio-mass. Facade greenery cannot replace areas such as parks, but it can act as a supplement, particularly in providing a greater degree of nature in our cities. The purpose of this paper is to promote the spread of facade greenery in order to improve the ecological worth of cities. But there is no basic data about fauna in Facade Greenery Zones. Thus for the first time this research investigates what kind of invertebrate communities exist in Facade Greenery Zones. To study the fauna in a facade greenery zone, three sites (Ewha-dong, Kongnung-dong, Daechi-dong) have been selected as representative facade greenery zones in Seoul and 9 plots ($0.5m{\times}0.5m$) were set up. Thirty seven species in 28 families in 10 orders were observed at Ewha-dong, 27 Species in 14 Families in 9 Orders were found at Kongnung-dong, 34 Species in 17 Families 10 in Orders were observed at Daechi-dong. From the investigations (October 3, 1998 and August 25, 1999), a high species diversity in facade greenery zones was proved with low dominance indices, and high diversity indices of the investigated sites. This study shows that facade greenery zone may be habitable space for invertebrates.

  • PDF

URP-PCR핵산지문에 의한 눈꽃동충하초 (Paecilomyces japonica.)와 번데기동충하초(Cordypces militaris) 유전적 다양성분석 (Genetic Diversity of Paecilomyces japonica and Cordypces militaris Strains by URP-PCR Fingerprinting)

  • 김종군;강희완
    • 한국균학회지
    • /
    • 제39권3호
    • /
    • pp.180-184
    • /
    • 2011
  • 본 연구는 URP-PCR 핵산지문법을 이용한 Paecilomyces spp.와 Cordyceps spp.의 종간, 종내 유전적 다양성분석을 실시 하였다. 12종류의 20mer의 URP primer가적용된 바 URP2F, URP2R, URP9F, URP4R, URP17R는 종간에 특이적인 PCR다형성밴드를 형성하였으며 Cordypces militaris 균주간에는 4가지 type의 PCR 다형성이 관찰되었다. 그러나 Paecilomyces japonica의 균주내에는 동일한 PCR 다형성을 나타내었다. URP-PCR profile을 이용하여 경동시장에서 수집한 미 동정 동충하초를 동정 할 수 있었다.

Genotyping of Agaricus bisporus Strains by PCR Fingerprints

  • Min, KyongJin;Oh, YounLee;Kang, HeeWan
    • 한국균학회소식:학술대회논문집
    • /
    • 한국균학회 2014년도 추계학술대회 및 정기총회
    • /
    • pp.41-41
    • /
    • 2014
  • Agaricus bisporus, commonly known as the button mushroom, is the most widely cultivated species of edible fungi. Low frequency of recombination ratio and homokaryotic or monokaryotic spore on meiotic basidia form obstacles for breeding programs. Since the first hybrid varieties for white button mushrooms were released in Europe, new varieties released afterwards were either identical of very similar to these first hybrids on morphologies. Therefore, different DNA markers have been used to define unique varieties of A. bisporus strains. Aim of this study is to assess the genetic diversity of different A. bisporus strains in Korea. Twelve UFP (Universal fungal primer, JK BioTech. Ltd), 12 simple sequence repeat (ISSR) and 30 SSR primers were used to assess genetic diversity of monokaryotic and dikaryotic Agaricus bisporus strains including other 19 Agaricus spp. Of them, four UFP, four SSR primers, $(GA)_8T$, $(AG)_8YC$, $(GA)_8C$ and $(CTC)_6$ and seven SSR markers produced PCR polymorphic bands between the Agaricus species or within A. bisporus strains. PCR polymorphic bands were inputted for UPGMA cluster analysis. Forty five strains of A. bisporus are genetically clustered into 6 groups, showing coefficient similarity from 0.75 to 0.9 among them. In addition, genetic variations of monokaryotic and dikaryotic Agaricus bisporus strains were partially detected by PCR technologies of this study. The varieties, Saea, saedo, Saejeong and Saeyeon that have recently been developed in Korea were involved in the same group with closely genetic relationship of coefficient similarity over 0.96, whereas, other strains were genetically related to A. bisporus strains that were introduced from USA, Eroupe and Chinese.

  • PDF

Yeast Associated with the Ambrosia Beetle, Platypus koryoensis, the Pest of Oak Trees in Korea

  • Yun, Yeo Hong;Suh, Dong Yeon;Yoo, Hun Dal;Oh, Man Hwan;Kim, Seong Hwan
    • Mycobiology
    • /
    • 제43권4호
    • /
    • pp.458-466
    • /
    • 2015
  • Oak tree death caused by symbiosis of an ambrosia beetle, Platypus koryoensis, and an ophiostomatoid filamentous fungus, Raffaelea quercus-mongolicae, has been a nationwide problem in Korea since 2004. In this study, we surveyed the yeast species associated with P. koryoensis to better understand the diversity of fungal associates of the beetle pest. In 2009, a total of 195 yeast isolates were sampled from larvae and adult beetles (female and male) of P. koryoensis in Cheonan, Goyang, and Paju; 8 species were identified by based on their morphological, biochemical and molecular analyses. Meyerozyma guilliermondii and Candida kashinagacola were found to be the two dominant species. Among the 8 species, Candida homilentoma was a newly recorded yeast species in Korea, and thus, its mycological characteristics were described. The P. koryoensis symbiont R. quercusmongolicae did not show extracelluar CM-cellulase, xylanase and avicelase activity that are responsible for degradation of wood structure; however, C. kashinagacola and M. guilliermondii did show the three extracellular enzymatic activities. Extracelluar CM-cellulase activity was also found in Ambrosiozyma sp., C. homilentoma, C. kashinagacola, and Candida sp. Extracelluar pectinase activity was detected in Ambrosiozyma sp., C. homilentoma, Candida sp., and M. guilliermondii. All the 8 yeast species displayed compatible relationships with R. quercus-mongolicae when they were co-cultivated on yeast extract-malt extract plates. Overall, our results demonstrated that P. koryoensis carries the yeast species as a symbiotic fungal associate. This is first report of yeast diversity associated with P. koryoensis.

modified RAM의 기능별 가중치 부여를 통한 농촌지역 연못형습지의 보전가치 평가 (The assessment of conservation value for agricultural pond wetland using the weighted function of modified RAM)

  • 손진관;김미희;이시영;강동현;강방훈
    • 농촌계획
    • /
    • 제20권4호
    • /
    • pp.13-24
    • /
    • 2014
  • The pond wetlands in agricultural landscape are important natural resources that carry out the function of bio-diversity conservation. However, recently, those have been gradually embedded as their utility value were disappeared. And, the assessment methods used for pond wetlands are insufficient. Therefore, this study was conducted to examine the conservation value of pond wetlands by using the modified RAM, and present the improvement of assesment methods. The study sites, a total of 32 pond of 4 types by land use, were selected on the basis of Ramsar Convention. Through the analysis of precedent studies, the weighted 8 functions were adjusted. According to the assessment results, pond wetlands made the largest contribution to Fishery and Herpetile Habitat function. In addition, it also made large contribution to Floral Diversity, Wildlife Habitat, and Water Quality Protection function. On the other hand, it made a small contribution to Aesthetics and Recreation, Runoff Attenuation, Shoreline /Stream Bank Protection, and Flood/Storm Water Storage function due to the characteristics of small-scale pond wetlands. In the assessment of 8 functions, house type showed the worst assessment result, and mountain type showed the best assessment result. It is thought that those are due to land use type in terms of vicinity. 10 items among 52 of the modified RAM showed the same assessment results in all land use types. Accordingly, it is required to be deleted and modified the assessment method. On the other hand, it is required to add age, interference, and water use to the assessment method. It is thought that these results can be utilized for the development and modification of assessment methods focused on pond wetlands in rural area.

인도네시아 그데 빨랑오(Gede Pangrango) 국립공원의 생태관광 활성화방안 연구 (A Study of Ecotourism Activated Gede Pangrango National Park in Indonesia)

  • 정경연;변병설
    • 한국습지학회지
    • /
    • 제15권1호
    • /
    • pp.139-147
    • /
    • 2013
  • 본 연구는 인도네시아 그데 빨랑오 국립공원의 생태관광 활성화 방안에 관한 것이다. 인도네시아는 한국의 10대 교역대상국 중의 하나이면서 열대우림을 보유하고 있어서 생태관광자원이 풍부한 나라이다. 특히 자바섬 서쪽에 있는 군웅 그데 빨랑오 국립공원(Gunung Gede Pangrango National Park)은 유네스코가 세계생물권보전지역으로 지정할 만큼 생물다양성이 풍부한 곳이다. 이러한 장점 때문에 세계 각지에서 연구, 교육, 등산, 캠핑을 위해 다양한 탐방객이 군웅 그데 빨랑오 국립공원을 찾고 있다. 그러나 인도네시아는 탐방객을 위한 편의시설이 다른 나라에 비해 부족하고 탐방프로그램도 불충분한 상태다. 생태관광을 활성화시키기 위해서는 탐방시설의 물리적 개선과 다양한 탐방프로그램의 운영, 그리고 지역주민의 참여와 소득증대사업이 이루어져야만 한다. 본 연구는 군웅 그데 빨랑오 국립공원의 생태관광 현황 및 문제점을 분석하여 환경 친화적인 국립공원 관리와 생태탐방 시설의 개선계획을 수립하는데 있다. 이 연구는 이러한 제안이 한국과 인도네시아 사이의 실질적인 환경협력을 증진시킬 것으로 기대한다.

A report of 46 unrecorded bacterial species in Korea belonging to the classes Alphaproteobacteria, Betaproteobacteria, Deltaproteobacteria and Epsilonproteobacteria

  • Jung, Hye Su;Yoon, Jung-Hoon;Kim, Seung-Bum;Yi, Hana;Cho, Jang-Cheon;Joh, Kiseong;Cha, Chang-Jun;Seong, Chi-Nam;Bae, Jin-Woo;Im, Wan-Taek;Kim, Myung Kyum;Lee, Soon Dong;Jeon, Che Ok
    • Journal of Species Research
    • /
    • 제8권2호
    • /
    • pp.161-175
    • /
    • 2019
  • During a comprehensive investigation of indigenous prokaryotic species in Korea, a total of 46 bacterial strains assigned to the classes Alphaproteobacteria, Betaproteobacteria, Deltaproteobacteria, and Epsilonproteobacteria were isolated from a diversity of habitats including freshwater, seawater, brackish water, ginseng soil, plant roots, natural caves, and tidal flats. Based on their high 16S rRNA gene sequence similarities (>98.7%) and formation of strongly-supported phylogenetic clades with the closest type species, each strain was assigned to an independent, predefined bacterial species. Since there were no published or official reports regarding the isolation of these 46 species in Korea, here we report them as new species to Korea: 34 species in 14 families in the five orders of Alphaproteobacteria, 10 species in five families in the three orders of Betaproteobacteria, one species of Deltaproteobacteria and one species of Epsilonproteobacteria. Gram reaction, colony and cell morphology, basic biochemical characteristics, isolation source, and strain IDs are described in the species description section.

식물 RNA 바이러스의 진화와 병저항성 극복 기작 (Evolution of Plant RNA Viruses and Mechanisms in Overcoming Plant Resistance)

  • 김명휘;권선정;서장균
    • 식물병연구
    • /
    • 제27권4호
    • /
    • pp.137-148
    • /
    • 2021
  • 식물 RNA 바이러스는 전세계적으로 작물 생산량에 큰 손실을 일으키는 주요 병원체 중 하나로, RNA 바이러스가 갖는 특징인 짧은 복제 주기, 게놈 복제 중의 높은 변이 발생률 등으로 인해 높은 유전적 다양성과 적응성을 가지며 진화해 왔다. 식물 RNA 바이러스는 유전적 다양성을 갖는 유사종 군집으로 존재하며, 환경 변화에 따른 선택압으로 새로운 적합성을 갖는 군집으로의 변천이 빠르게 일어날 수 있다. 식물의 저항성은 일종의 선택압으로 작용하여 바이러스의 적합성에 영향을 미치며, 이는 기주의 저항성을 극복하는 변이 바이러스의 출현으로 이어질 수 있다. 본 논문에서는 식물 RNA 바이러스에 대한 진화적 관점 및 진화의 원동력을 소개하고, 이를 바탕으로 식물 저항성을 극복하는 변이 바이러스의 출현 기작을 다루고자 한다. 또한 바이러스병에 대한 저항성 전개 및 내구성 향상을 위한 전략에 대해 논하였다.

Northern distribution limits and future suitable habitats of warm temperate evergreen broad-leaved tree species designated as climate-sensitive biological indicator species in South Korea

  • Sookyung, Shin;Jung-Hyun, Kim;Duhee, Kang;Jin-Seok, Kim;Hong Gu, Kang;Hyun-Do, Jang;Jongsung, Lee;Jeong Eun, Han;Hyun Kyung, Oh
    • Journal of Ecology and Environment
    • /
    • 제46권4호
    • /
    • pp.292-303
    • /
    • 2022
  • Background: Climate change significantly influences the geographical distribution of plant species worldwide. Selecting indicator species allows for better-informed and more effective ecosystem management in response to climate change. The Korean Peninsula is the northernmost distribution zone of warm temperate evergreen broad-leaved (WTEB) species in Northeast Asia. Considering the ecological value of these species, we evaluated the current distribution range and future suitable habitat for 13 WTEB tree species designated as climate-sensitive biological indicator species. Results: Up-to-date and accurate WTEB species distribution maps were constructed using herbarium specimens and citizen science data from the Korea Biodiversity Observation Network. Current northern limits for several species have shifted to higher latitudes compared to previous records. For example, the northern latitude limit for Stauntonia hexaphylla is higher (37° 02' N, Deokjeokdo archipelago) than that reported previously (36° 13' N). The minimum temperature of the coldest month (Bio6) is the major factor influencing species distribution. Under future climate change scenarios, suitable habitats are predicted to expand toward higher latitudes inland and along the western coastal areas. Conclusions: Our results support the suitability of WTEB trees as significant biological indicators of species' responses to warming. The findings also suggest the need for consistent monitoring of species distribution shifts. This study provides an important baseline dataset for future monitoring and management of indicator species' responses to changing climate conditions in South Korea.

"유전자원의 접근과 이익공유(ABS)" 사례연구를 통한 국내 산림·임업분야 대응과제 고찰 (Considerations of Countermeasure Tasks in the Fields of Forest and Forestry in Korea through Case Study on "The Nagoya Protocol (Access to Genetic Resources and Benefit Sharing)")

  • 이관규;김준순;정화영
    • 한국산림과학회지
    • /
    • 제100권3호
    • /
    • pp.522-534
    • /
    • 2011
  • 본 연구의 목적은 ABS 사례연구를 통해 우리나라 산림 임업 분야 대응정책과제를 도출하는 것이다. 식물종에 대한 대표적인 ABS 선례 조사를 통해 가장 최근 ABS 협정이 이루어진 후디아를 연구대상으로 선정하였다. 후디아 ABS 진행배경을 분석하였고, 2002년 CBD COP6 회의에서 선정된 '본 가이드라인'의 ABS 절차와 후디아 사례를 비교분석하였다. 분석결과 도출된 ABS 주요공통사항과 2010년 CBD COP10 회의에서 선정된 '나고야의정서'와 함께 우리나라가 현재 당면해 있는 과제 및 역할관계를 조명하고자 하였다. 연구결과를 요약하면 다음과 같다. 1. 종 서식지를 생물분류별로 나누어 그에 따른 지역공동체를 설립하고 지역 주체적 생산, 관리, 감시 등의 기반시설을 조성하여야 할 것이다. 2. 전반적인 ABS 관련 정보공유, 관련협약 이행증진 및 모니터링을 위한 ABS 국가연락기관이 지정되어야 할 것이다. 3. 입법적, 행정적, 정책적 절차에 따른 ABS 협약체계 구축, PIC 및 MAT 양식제공 및 내용평가 확인을 위한 국가책임기관의 지정이 필요할 것이다. 4. ABS 관련 산림생물자원의 연구개발 및 관련 연구사업의 통합적 관리시스템이 구축되어야 할 것이다. 5. 생물자원별 소관 부처간 책임 및 역할분배를 통한 정보개발이 이루어져야 할 것이며 상호간 호환성 있는 시스템 개발을 위한 산학연구기관의 워킹그룹개설을 지향되어야 할 것이다. 6. 부처별 담당생물자원의 ABS 지원센터를 설립하여 산업계와 국민의 효율적인 접근을 도모해야 할 것이다. 7. 지역공동체 권리확보, ABS 협약 이행의 모니터링을 위한 국가감시기관의 선정과 국내 산림생물자원 해외유출 방지를 위한 대응체계가 구축되어야 할 것이다. 이와 같은 결과를 통해 우리나라 자생산림생물주권확립을 위한 대응방안을 모색할 수 있을 것으로 판단된다.