• 제목/요약/키워드: environmental ecology

검색결과 3,624건 처리시간 0.03초

면섬유의 기존 전처리 공정과 효소 사용 전처리 공정의 환경오염 평가 (Environmental Impact from Enzymatic Preparatory Process of Cotton Comparison with the Conventional Process)

  • Choe, Eun-Kyung;Son, Seung-Hwan;Cho, Young-Dal
    • 한국섬유공학회:학술대회논문집
    • /
    • 한국섬유공학회 2001년도 가을 학술발표회 논문집
    • /
    • pp.375-378
    • /
    • 2001
  • At the time of facing strict environmental regulations, environmentally friendly dyeing technology is being highlighted due to the potential possibility of reducing environmental impact, so is the preparation process that uses a great deal of water and generates as much contamination. Enzyme technology has been regarded as an eco-friendly solution to industrial problems, saving water, chemicals and energy. (omitted)

  • PDF

First Report of Anthracnose of Shine Muscat Caused by Colletotrichum fructicola in Korea

  • Lim, Yang-Sook;Hassan, Oliul;Chang, Taehyun
    • Mycobiology
    • /
    • 제48권1호
    • /
    • pp.75-79
    • /
    • 2020
  • Anthracnose is one of the major problems for cultivating many crops, including vegetables, fruits, and trees. It is a continual threat for fruits grower worldwide. Colletotrichum fructicola was isolated from Shine Muscat berries showing typical anthracnose symptom in Korea. It was identified as C. fructicola based on morphology, pathological signs and concatenated sequences of internal transcribed spacer region of rDNA, glyceraldehyde-3-phosphate dehydrogenase, β-tubulin-2, chitin synthase-1, calmodulin, and the Apn2-Mat1-2 intergenic spacer and partial mating type (Mat1-2) gene. To the best of our knowledge, this is the first report first report of anthracnose of Shine Muscat caused by C. fructicola in Korea.

Phylogenetic and Morphological Characterization of Cladosporium perangustum Associated with Flyspeck on Shine Muscat Grapes in South Korea

  • Hassan, Oliul;Lim, Yang-Sook;Chang, Taehyun
    • Mycobiology
    • /
    • 제49권2호
    • /
    • pp.183-187
    • /
    • 2021
  • The Shine Muscat is a table grape, popular in South Korea for its unique mango-flavor taste. Flyspeck is a disease that is characterized by small, black, and circular specks on the grape cuticle was first observed in several commercial orchards in Sangju, South Korea, in August 2019. Here we identified the causal agent of flyspeck based on an advanced diagnosis approach, comprised of both morphological and molecular analyses. Morphological characteristics of the cultures isolated from grape flyspeck were identical to the fungus Cladosporium perangustum. The concatenated sequences of ITS, ACT, and EF1-α were used for molecular phylogenetic analysis, BLAST searches along with Bayesian inference-based phylogeny, confirmed that the causal agent of grape flyspeck is C. perangustum. The cultured fungal isolates also produced flyspeck symptoms on healthy fruits in pathogenicity tests. To the best of my knowledge, this is the first documented evidence of any Cladosporium sp. producing flyspeck symptoms on any plant.

Multigene Phylogeny and Morphology of Ophiocordyceps alboperitheciata sp. nov., A New Entomopathogenic Fungus Attacking Lepidopteran Larva from Yunnan, China

  • Fan, Qi;Wang, Yuan-Bing;Zhang, Guo-Dong;Tang, De-Xiang;Yu, Hong
    • Mycobiology
    • /
    • 제49권2호
    • /
    • pp.133-141
    • /
    • 2021
  • A new fungus, Ophiocordyceps alboperitheciata, parasitic on the larva of Noctuidae (Lepidoptera) was identified from a survey of entomopathogenic fungi in Kunming Wild Duck Forest Park, Yunnan Province, China. It can be primarily distinguished from relatives by its longer fertile parts, sterile tips, superficial perithecia, narrower asci, and smaller septa of ascospores. As revealed from phylogenetic analyses inferred from nrSSU, nrLSU, tef-1α, rpb1, and rpb2 sequence data, O. alboperitheciata belongs to the Hirsutella citriformis clade in the genus Ophiocordyceps of Ophiocordycipitaceae, and forms a separated clade from other related species. The uniqueness of the taxon is significantly evidenced by both molecular phylogeny and morphology. Furthermore, the interspecific relationships in the H. citriformis clade are discussed.

선(禪)생태학관점에서 본 전통사찰의 공간조형개념 연구 - 조선시대 선(禪)적 특성이 두드러진 전각을 중심으로 - (A Study on the Space Formative Concepts of Traditional Temple viewed in the Seon Ecology - Focused on Traditional Seon Buddhist Temple of Joseon Dynasty -)

  • 이고은;김개천
    • 한국실내디자인학회논문집
    • /
    • 제22권6호
    • /
    • pp.58-67
    • /
    • 2013
  • Since environmental pollution emerges as an important issue, integration of academic discipline has been accomplished for development of environmental ethics. Combination of Buddhism and Ecology is the instance of this background. The background of this research is the assumption that from Seon Ecology standpoint, Buddhist temple would define conception of Seon Ecology specifically. The study based on advanced study about Seon Ecology, the peculiarity of Seon Ecology was dependent originations, order, the nature of Buddha, moderation, and impersonated nature. In addition, this study researched how these peculiarity has relation with traditional temples. This attempt has a significance in that finding a new approach of interpreting traditional temple and possibility of Seon Ecology Seon Ecology space formative concepts of traditional temple is cyclical allness, transitory balance, Denial of perfection and natural void characteristics from Seon Ecological studies. This study examined how characteristic of Seon Ecology is reflected in traditional temple, through analyzing Buseoksa-Anyangru, Bongjeongsa-Yeonsanam, Seonamsa simgeomdang, Songgwangsa woohwagak, Hwaamsa woohwaru which have remarkable characteristic of selection using above space formative concepts. traditional temple was filled with life coexisted with dynamics, independence, and equality within interrelationship between nature and architecture.

수생태 환경 연구에 있어 안정동위원소의 활용과 전망 (Applications and Prospects of Stable Isotope in Aquatic Ecology and Environmental Study)

  • 최보형;신경훈
    • 생태와환경
    • /
    • 제51권1호
    • /
    • pp.96-104
    • /
    • 2018
  • 안정동위원소비는 전 세계적으로 수생태 환경 연구에서 매우 활발하게 적용되고 있는 분야로써, 국내에서도 2000년대 이후 담수 및 연안 생태계의 먹이망 구조 연구 등 다양한 연구에서 활용되고 있다. 최근에는 기존의 총 조직내의 안정동위원소 분석기법의 한계점을 인지하고 보완하기 위한 방안으로 아미노산의 질소 안정동위원소 분석 기법이 개발되었으며, 이를 활용한 다양한 연구 사례들이 보고됨에 따라 수생태 연구의 활용범위가 급격히 확대되고 있다. 아미노산의 질소 안정동위원소 분석기법의 기술적인 접근성의 한계에 의해 현재까지 국내에서 수생태계 연구를 위해 아미노산의 질소 안정동위원소비를 활용한 연구는 제한적인 실정이지만, 국내 다양한 하천 및 호수 그리고 연안의 환경 변화 특성을 고려할 때, 향후 수생태 환경연구에 있어 그 유용성과 활용 가치가 대단히 높을 것으로 전망된다.

환경시료은행의 국제적 동향 및 우리의 대응 (International Trends of Environmental Specimen Bank and Our Response)

  • 김명진;유병호;이석조;이종천;이철우
    • 환경영향평가
    • /
    • 제17권4호
    • /
    • pp.225-233
    • /
    • 2008
  • An Environmental Specimen Bank (ESB) is an archive for samples that can be used to document and assess the quality of the environment in which we live. An ESB program looks at changes in the concentration of human and environmental specimens over long periods of time through retrospective analysis of archived samples of a particular area collected at regular intervals. The idea of ESB was first proposed by German and American scientists in the early 1970s and has been established since 1979 in Germany, USA, and Japan. Korea plans to establish a National Environmental Specimen Bank (NESB) in 2010. The NESB will be able to assess and improve the quality of analytical measurements as well as to compare the past and current environmental quality as a time capsule. The concept and design for the NESB facility was developed and its Standard Operation Procedures (SOPs) are being developed based on an evaluation of ESBs and SOPs of Germany, USA, and Japan. Environmental specimens proposed for banking are based on typical representatives of every level of the food chain from each type of ecosystem that are widely distributed thus enabling comparisons between different sampling areas. Through retrospective analysis of environmental specimens, the NESB will improve the reliability of environmental monitoring, ecological risk assessment, and health impact assessment.

우리나라 해안 식생의 식물사회학적 군락 분류 (Phytosociological Classification of Coastal Vegetation in Korea)

  • 이용호;오영주;이욱재;나채선;김건옥;홍선희
    • 환경생물
    • /
    • 제34권1호
    • /
    • pp.41-47
    • /
    • 2016
  • 우리나라에 발생하는 해안 식생의 식생 구조에 대하여 식물사회학적 연구를 수행하였다. 총 102개 조사구에 대한 식생자료의 분석은 ZM 학파의 방법을 활용하였다. 국내 해안에 발생하는 식물 군집 구분은 총 11개의 군락으로 순비기나무-돌가시나무 군락, 갯메꽃 군락, 통보리사초-갯그령 군락, 갯잔디 군락, 해홍나물 군락, 방석나물 군락, 나문재-가는갯는쟁이군락, 칠면초 군락, 천일사초 군락, 갈대 군락, 산조풀 군락이 구분되었다. 각 군락 들은 발생지역과 환경에서 다양성을 보였다. 식생 자료에 대한 주성분분석 (PCA) 결과 식물사회학적 군락 분류 결과를 지지하였다.