• Title/Summary/Keyword: environmental ecology

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

  • Choe, Eun-Kyung;Son, Seung-Hwan;Cho, Young-Dal
    • Proceedings of the Korean Fiber Society Conference
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    • 2001.10a
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    • pp.375-378
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    • 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)

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

  • Lim, Yang-Sook;Hassan, Oliul;Chang, Taehyun
    • Mycobiology
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    • v.48 no.1
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    • pp.75-79
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    • 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
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    • v.49 no.2
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    • pp.183-187
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    • 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
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    • v.49 no.2
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    • pp.133-141
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    • 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.

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

  • Lee, Go-Eun;Kim, Kai-Chun
    • Korean Institute of Interior Design Journal
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    • v.22 no.6
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    • pp.58-67
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    • 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.

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

  • Choi, Bohyung;Shin, Kyung-Hoon
    • Korean Journal of Ecology and Environment
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    • v.51 no.1
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    • pp.96-104
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    • 2018
  • Stable isotope approach for aquatic ecology and environmental sciences has been introduced as very useful technique since 1980s and also has been applied to investigate various issues in aquatic ecology and environmental study last 10 years in Korea. Especially carbon and nitrogen isotope ratios have been mainly used to understand food web energy flow and ecosystem structure. In addition, nitrogen isotope ratio has been applied for nitrogen cycle and source identification as well as biomagnification studies. However, large temporal or spatial variations of nitrogen isotope ratio of primary producer have been found in many aquatic environments, and it is regarded as the critical problems to determine trophic level of aquatic animals. Recently, the compound specific isotope analysis of nitrogen within individual amino acids has been developed as an alternative method for trophic ecology. This article introduces the progress history of stable isotope application in aquatic ecology and environmental sciences, and also suggests new direction based on future prospects in stable isotope ecology and environmental study.

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

  • Kim, Myung-Jin;Yoo, Byung-Ho;Lee, Suk-Jo;Lee, Jong-Chun;Lee, Chul-Woo
    • Journal of Environmental Impact Assessment
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    • v.17 no.4
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    • pp.225-233
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    • 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.

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

  • Lee, Yong Ho;Oh, Young Ju;Lee, Wook Jae;Na, Chae Sun;Kim, Kun Ok;Hong, Sun Hee
    • Korean Journal of Environmental Biology
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    • v.34 no.1
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    • pp.41-47
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    • 2016
  • The phytosociological study was carried out to investigate the structural characteristics of coastal vegetaion in South Korea. The vegetation data of total 102 sites were analyzed by the $Z{\ddot{u}}rich$-Montpellier school's method. Eleven community of coastal vegetation were recognized : Vitex rotundifolia-Rosa wichuraiana community, Calystegia soldanella community, Carex kobomugi-Elymus mollis community, Zoysia sinica community, Suaeda maritima community, Suaeda australis community, Suaeda glauca-Atriplex gmelinii community, Suaeda japonica community, Phragmites communis community and Calamagrostis epigeios community. Principal componant analysis (PCA) showed the similar result with phytosoiological classification.