• Title/Summary/Keyword: 독성 식물

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Evaluation of Toxicity of Several Environmental Friendly Agricultural Materials on Honeybee (Apis mellifera) and Asian Multicolored Ladybird Beetle (Harmonia axyridis) (꿀벌과 무당벌레에 미치는 몇가지 친환경유기농자재에 대한 독성평가)

  • Hwang, In-Cheon;Cho, Tae-Kyung;Youn, Young-Nam
    • Korean journal of applied entomology
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    • v.49 no.3
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    • pp.227-232
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    • 2010
  • Toxicity of seven environment friendly agricultural materials (EFAM), which have been used in the domestic market were evaluated on honeybee (Apis mellifera) and asian multicolored ladybird beetle (Harmonia axyridis). Three EFAMs made from plant extract agents (Wangjoongwang Eco, Bogum Eco and Bestop Eco) and four EFAMs made from microbial utilizing agents (Worldstar Eco, Goodmorning, Bluechip and Cameleon) were investigated as EFAMs. In evaluation of toxicity on honeybee, the $RT_{25}$ values of 3 EFAMs made from plant extract agents ranged from 1 to 3 days. Therefore, honeybee should be released 1-3 days after application of these EFAMs. Meanwhile, the four agricultural materials made from microbial utilizing agents did not show any mortality against honeybee. In evaluating the toxicity to adult and larva ladybird beetles, all seven EFAMs made from plant extract agents and microbial utilizing agents to show any mortality.

Toxic Effects of 5 Organic Solvents on Euglena agilis (국내 생물 종 유글레나(Euglena agilis)를 이용한 5종 유기용매의 독성평가)

  • Lee, Junga;Chang, Soon-Woong;Kim, Ji-Tae;Kim, Dong-Woo
    • Korean Journal of Environmental Biology
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    • v.33 no.1
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    • pp.45-52
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    • 2015
  • Acute toxicity tests for 5 organic solvents were conducted using Euglena agilis carter (E. agilis), a Korean domestic organism. Organic solvents decreased the growth rate of E. agilis in a dose dependent manner. The toxicity to E. agilis was increased in the order of chloroform>acetone${\geq}$ethanol${\geq}$methanol>DMSO based on $EC_{50}$ values from growth test. Organic solvents also induced cell motility and morphological changes of E. agilis. Especially significant effects on the cell swimming velocity, motility, and compactness were observed for chloroform at the concentration of $EC_{50}$ calculated from 96 hr growth test. Overall, toxic responses of E. agilis to test substances are comparable to or more sensitive than D. magna, M. macrocopa and V. fischeri. Our study demonstrates that E. agilis can be a putative ecotoxicity test model organism to assess domestic water quality. Results obtained from this study can be applied to establish the standard test guidelines for ecotoxicity test using E. agilis.

Domestic Test Species for Aquatic Toxicity Assessment in Korea (수생태계 독성평가에 적용 가능한 국내 시험종 선정)

  • An, Youn-Joo;Nam, Sun-Hwa;Lee, Jae-Kwan
    • Korean Journal of Ecology and Environment
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    • v.40 no.1
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    • pp.1-13
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    • 2007
  • The use of aquatic species in ecotoxicity research is well established in developed countries. However, there are limitations of using the species that are not native to Korea, and the toxicity data produced by domestic test species are significantly needed to reflect the domestic situation. The purpose of this study was to investigate the domestic species that can be applicable for the aquatic toxicity assessment in Korea. Aquatic toxicity data were collected in the framework of the project 'Development of integrated methodology for evaluation of water environment' to obtain a range of test species used for aquatic toxicity assessment internationally. The test species collected were evaluated in terms of domestic distribution based on the reliable references and the advices of experts. We figured out the 71 test species native to Korea. They included 7 fish, 26 invertebrates (2 annelids, 2 bryozoa, 13 crustaceans, 3 insects, 4 mollusc, 1 platyhelminth, and 1 protozoan), 26 plants (9 diatoms, 14 green algae, 3 macrophytes), and 12 others (2 amphibians, 3 bacteria, 6 blue-green algae, and 1 fungus). The result of this study should be a very useful information for ecotoxicity assessment in aquatic ecosystem, especially in choosing the test species applicable for the ecotoxicity in Korea hereafter.

Cultivation and Using for Bedding and Potted Plant of Arisaema amurense var. serratum (화단 및 분화용 자생화 천남성 기르기)

  • Song, Jeong-Seop
    • Landscaping Tree
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    • s.112
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    • pp.12-14
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    • 2009
  • '천남성' 원래 약용식물이지만 잎의 질감이 좋고 꽃모양이 특이하여 분화 및 화단용으로 흔히 이용될 만큼 유명한 식물이다. 잎이나, 열매, 특히 뿌리에 독성이 많은 유독식물이라 이용 시는 상당한 주의가 필요하다. 두루미천남성, 점박이천남성, 큰천남성 등 몇가지가 우리나라에 나며 천남성은 전국의 그늘 또는 반 그늘진 산에 흔히 자생한다.

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