• 한국환경복원기술학회지
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• 제9권4호
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• pp.24-35
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• 2006

The vascular plants of the studied area was listed 384 taxa of 90 families, 234 genera, 331 species, 1 subspecies, 45 varieties and 7 forms. The flora of each reservoir, 285 taxa of 83 families, 190 genera, 247 species, 1 subspecies, 30 varieties, 7 forms in Osongjae, 117 taxa of 39 families, 87 genera, 100 species, 17 varieties in Ogongjae, 83 taxa of 30 families, 67 genera, 73 species, 8 varieties, 2 forms in Shinyongjae and 86 taxa of 33families, 70 genera, 75 species, 1 subspecies, 10 varieties in Eodujae. Based on the list of the rare plants by the Forest Research Institute, 3 taxa were recorded in the studied areas; Magnolia kobus (Preservation priority order : No. 187), Penthorum chinense (No. 144), Prunus yedoensis (No. 110) and based on the list of Korean endemic plants, 4 taxa were recorded; Populus tomentiglandulosa, Clematis trichotoma, Prunus yedoensis, Paulownia coreana. Specific plant species by floral region were total 15 taxa; Prunus yedoensis in class V, 2 taxa (Carex idzuroei, Magnolia kobus) in class IV, 2 taxa (Monochoria korsakowi, Poncirus trifoliata ) in class III, 10 taxa (Sagittaria aginashi, Salix glandulosa, Clematis brachyura, Nymphoides peltata, etc.) in class I. The naturalized plants in this site were 13 families, 29 genera, 43 species, 1 varieties, 44 taxa and naturalization rate was 11.5% and based on the list of an ecosystem disturbance plants, 3 taxa were recorded in the studied areas : Paspalum distichum, Solanum carolinense, Ambrosia artemisiifolia var. elatior. The hydrophytes was listed 31 taxa of 15 families, 20 genera, 29 species, 2 varieties and Eleocharis mamillata var. cyclocarpa, Penthorum chinense, Soirodela polyrhiza were recorded in Osongjae, Sagittaria aginashi, Eleocharis kuroguwai, Scirpus juncoides, Scirpus triqueter, Monochoria korsakowi, Monochoria vaginalis var. plantaginea were recorded in Ogongjae. Besides, Scirpus fluviatilis, Trapa pseudoincisa were recorded in Shinyongjae and Scirpus triangulatus, Nymphoides peltata, Myriophyllum verticillatum were recorded in Eodujae. This site is located in the urban area and ecosystem-disturbing wild animal and plant has been imported here, therefore ecosystem has been disturbed more and more. The wetland here rapidly has changed into upland, so it needs conservation measures through long-term monitoring.

• 생명과학회지
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• 제26권12호
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• pp.1446-1457
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• 2016

이 논문은 무제치늪에서 채집한 기장대풀(Isachne globosa Kuntze), 솔방울고랭이(Scirpus karuisawensis Makino), 이삭귀개(Utricularia racemosa Wall.), 좀개수염(Eriocaulon decemflorum Maxim.)등 4종의 식물 뿌리에서 서식하는 내생곰팡이의 분포 및 다양성을 확인하기 위해 조사하였다. 총 226 균주가 분리되었고, 3문(Phyla), 7강(Class), 10목(Order), 22과(Family), 31(genera)속으로 분리되었다. 내생진균에서 가장 많이 분리된 속은 Acephala (19.9%), Tolypocladium (16.3%), Neopestalotiopsis (11.5%), Perenniporia (7.1%) 순으로 확인하였다. 다양성지수 분석에 있어서, 이삭귀개(Ur)가 다른 식물 종에 비해 종 풍부도 (Menhinick's index = 2.37), (Margalef's index = 4.46)와, 종 균등도 (Simpson's index diversity = 0.91), 그리고 종 다양성(Shannon's indx = 2.57)로 높게 나왔다. 이러한 분석 결과를 봤을 때, 이삭귀개(Ur)에서 내생진균이 가장 다양하게 서식할 수 있는 것으로 보여진다.

• 생명과학회지
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• 제28권10호
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• pp.1179-1185
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• 2018

최근 괭생이모자반(Sargassum horneri)은 제주의 해안가와 해변, 연근해 양식장 등 매년 대량으로 속출되어 인근 양식업자 및 주민에게 막대한 피해를 주고 있는 추세이다. 본 연구에서는 제주 인근 연안으로 흘러 들어온 괭생이 모자반에 서식하고 있는 미생물의 다양성을 탐색하고 동정을 통한 미생물의 기능을 파악함으로써 생태학적 문제에 관한 기초자료를 제공하고자 하였다. Proteobacteria는 분리 된 균주 중 88%를 차지한 우점문으로 ${\alpha}-proteobacteria$강은 6속 10종으로 Pseudorhodobacter속이 40%를 차지하고 Paracoccus속 20%, Rhizobium, Albirhodobacter, Skermanella 및 Novosphingobium 속은 각각 10%를 차지했다. ${\beta}-proteobactera$강은 5속 10종으로 Hydrogenophaga속이 50%, Azoarcus 20%, 나머지 Oxalicibacterium, Duganella, Xenophilus속은 각각 10%를 차지했다. ${\gamma}-proteobacteria$강은 13속 57종으로 Proteobacteria문에서 74%로 우점강을 차지했고, Shewanella는 23%, Pseudomonas속 12%, Cobetia 19%, Rahnella, Vibrio 및 Serratia속은 4%, 나머지 Rheinheimera, Raoultella, Pantoea, Acinetobacter, Moraxella 및 Psychrobacter속은 2%를 차지했다. Actinobacteria는 1속 2종으로 Gordonia와 Nocardioides속이 각각 50%를 나타냈다. Bacteroidetes문은 3속 5종으로 Lacihabitans, Mariniflexile속은 33%, 나머지 Dyadobacter, Cellulophaga와 Ferruginibacter속은 11%를 차지했다.

• Journal of Forest and Environmental Science
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• 제13권1호
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• pp.114-133
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• 1997

우리나라산(産) 활엽수재 25과(科)45속(屬)78종(種)의 수종에 대하여 천공을 이루고 있는 구조를 주사전자현미경(SEM)을 사용하여 3차원적(次元的) 형태를 관찰하고, 이들의 미세한 천공구조의 본질을 조사하여 과(科), 속(屬), 종별(種別)로 고유의 특징을 구명하기 위하여 본 연구를 실시 하였으며 천공의 분류는 단천공(單穿孔), 계단천공(階段穿孔) 및 다공천공(多孔穿孔)(계단천공(階段穿孔) 이외의 다공천공(多孔穿孔))의 3가지로 구분하고 이것을 기초로하여 (1) 단천공(單穿孔)만을 갖는 수종(60종), (2) 계단천공(階段穿孔)만을 갖는 수종(5종), (3) 단천공(單穿孔)과 계단천공(階段穿孔)을 갖는 수종(4종), (4) 단천공(單穿孔)과 다공천공(多孔穿孔)을 갖는 수종(2종), (5) 계단천공(階段穿孔)과 다공천공(多孔穿孔)을 갖는 수종(5종), (6) 단천공(單穿孔), 계단천공(階段穿孔) 및 다공천공(多孔穿孔)을 갖는 수종(2종)의 6개의 그룹으로 분류 하였다. 그 결과 Betulaceae에 속하는 수종은 대부분이 계단천공(階段穿孔)을 나타내고 있으나 개서어나무에서는 단천공(單穿孔)이 출현하는 특징이 있으며, Fagaceae의 갈참나무에서는 단천공(單穿孔)의 천공연(穿孔緣)의 주연에 돌기물이 발생된 vesture천공이 관찰 되었다. 또한 계단천공(階段穿孔)의 상하의 bar가 서로 일치되고 있지않은 mismatching perforation plate가 물갬나무와 물오리나무에서 관찰되었으며 또한 계단천공의 bar사이에 벽물질이 남아 일부 또는 전부가 막혀 있거나 microfibrillar 모양의 substructure가 물박달나무와 계수나무에서 발견되었다.

• Mycobiology
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• 제30권3호
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• pp.170-174
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• 2002

A total of twenty-nine species and one species variety belonging to 12 genera was isolated from 30 samples of molasses on 1% glucose(10 genera, 22 species and 1 variety) and 50% sucrose(7, 21 and 1) Czapek's agar at $25^{\circ}C$ media. Aspergillus, Mucor, Mycosphaerella and Penicillium were the most common genera on the two types of media. From the above genera, the most prevalent species were: Aspergillus flavus, A. fumigatus, A. niger, Mycosphaerella tassiana, Penicillium chrysogenum, P. oxalicum and P. purpurogenum. Also, some species were only isolated on 50% sucrose such as Eurotium amstelodami, E. chevalieri, E. repens, Humicola fuscoatra, Penicillium aurantiogriseum and P. puberulum. About 65 fungal isolates isolated from 50% sucrose agar were tested for their ability to produce invertase enzyme in liquid medium and 93.8% of the isolates could produce this enzyme. From the positive isolates, 32 showed high invertase activity, 21 had moderate activity and the remaining 8 isolates were of weak activity. Sixty isolates of Aspergillus, Emericella, Eurotium, Mycosphaerella and Penicillium from the preceding study were screened for the presence of their respective mycotoxins. Larva of brine shrimp(Artema sauna L.) were used for toxicity test of the fungal crude extracts. Three isolates out of 60 tested were toxic. Using thin-layer chromatographic technique, 5 different known mycotoxin were detected aflatoxins : B1, B2, G1, G2 and citrinin.

• Journal of Forest and Environmental Science
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• 제28권1호
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• pp.8-11
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• 2012

The Kashmir Himalaya, known for its indigenous and endemic flora, also provides home to a large number of exotic plants, which exhibit a wide taxonomical and distributional stretch. Although, some preliminary studies have been carried out in the region on some aspects of its exotic flora, the inventorization and documentation of its exotic have received a little or negligible attention. There is a lot of scope of these exotic plant species in Kashmir valley, but lack of authentic identification has been as a big hurdle in their scientific management. It is in this backdrop that the present floristic study was carried out to identify, inventorize, document and characterize the exotic plant species grown in the Valley. The present study has revealed that Kashmir Valley grows 317 exotic plant species, which belong to 209 genera in 85 families. Dicotyledons are the largest group, represented by 252 species in 163 genera and 67 families. Monocotyledons comprise 52 species in 37 genera and 13 families. Gymnosperms are the smallest group, with 13 species distributed in 9 genera and 5 families. Asteraceae is the largest family containing 33 exotic species.

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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• pp.28-28
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• 2003

The International Committee for Taxonomy of Viruses (ICTV), which was formed over 30 years ago, aims to develop a single, universal taxonomic scheme for all viruses or, in other words, "the classification of viruses and the assignment of names to taxa". Plant Virus taxonomy is in charge of Plant Virus Subcommittee, a substructure of the ICTV. The ICTV has been most successfully pursuing that aim and its mammoth 'Seventh Report' records details of the names it has collated and approved, and of the classification, it has devised. The current 7th ICTV report published in 2000 contains plant viruses of 951 species in 79 genera in 17 families, though 24 of the 79 genera are floating genera, that is, they are not included in any established families. Proposed name of new or existing viruses are vote for the accepted taxonomic proposals by ICTV Executive Committee meeting. The approved results have been published as the ICTV reports providing standard names and taxa of viruses all over the world. A number of new plant viruses have been identified or reclassified in the genus or species level, and new genera and families have been proposed.(중략)

• Fisheries and Aquatic Sciences
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• 제11권1호
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• pp.15-22
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• 2008

Excessive growth of phytoplankton is a common and severe problem in intensively farmed pangasiid catfish (Pangasius hypophthalmus) culture ponds. It can lead to cyanobacterial blooms, reduced fish growth, bad-tasting fish flesh, and lower market demand. To investigate how to manage undesirable phytoplankton growth, we evaluated three stocking strategies in nine rural fishponds (0.020-0.022 ha) owned by various farmers: a pangasiid catfish mono culture (treatment 1, $T_1$), and pangasiid catfish-silver carp (Hypophthalmichthys molitrix) polycultures at two stocking ratios of 1:1 (treatment 2, $T_2$) and 2:1 (treatment 3, $T_3$). The total density of all ponds was approximately 30,000 fishes/ha. Monoculture ($T_1$) resulted in significantly higher (p < 0.05) nutrient levels (nitrate and phosphate) in ponds than did polyculture ($T_2$ and $T_3$). Nutrient loads increased with culture time, resulting in increased growth of phytoplankton, including Cyanophyceae (9 genera), Chlorophyceae (15 genera), Bacillariophyceae (8 genera), and Euglenophyceae (3 genera). The introduction of silver carp as a co-species helped to regulate phytoplankton growth and to improve the water quality of pangasiid catfish culture ponds.

• 식물분류학회지
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• 제41권3호
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• pp.287-297
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• 2011

The objective of this study was to discuss the characteristics of the moss flora of Mt. Deogyu located on the border of the Jeonbuk and Kyungnam provinces in Korea. A total of 21 field surveys were carried out at various sites in the mountain area from August 2007 to September 2008. All the collected materials were processed into voucher specimens and were currently deposited in the herbarium at Chonbuk National University (JNU). In this study, we collected and identified 158 moss taxa, which included 156 species, 1 subsp. and 1 var. of 96 genera and 37 families. Unconfirmed taxa in this study, but previously recorded, belonged to 25 taxa, which included 13 families, 19 genera and 25 species. In addition, 183 taxa were found on Mt. Dreogyu, which belonged to 37 families, 101 genera, 1 subsp. and 1 var. The habitat of each collection was examined and the classification system of Ignatov et al. (2006) was used. New vernacular names of 6 families and 11 genera were then determined. Six species, formerly thought be only in North Korea, were shown to be present on Mt. Deogyu, which included Bucklandiella laeta, Anomobryum filiforme var. concinnatum, Herzogiella turfacea, Brachythecium rutabulum, Eurhynchium angustirete and Campylidium hispidulum.

• 한국자원식물학회지
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• 제19권2호
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• pp.209-217
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• 2006

This study was carried out to investigate and analyze the vascular flora and injury status in Shinduri coastal dune area $(N36^{\circ}\;49',\;E126^{\circ}\;11')$, where designated as Natural Monuments and the result are as follows. The vascular plants identified and surveyed were 125 taxa including 108 species, 14 varieties, 2 forms and 1 hybrid of 92 genera of 40 families and there are 20 taxa including 17 species, 2 varieties and 1 hybrid of 15 genera of 10 families for woody plants, while 105 toxa including 91 species, 12 varieties and 2 forms of 78 genera of 34 families for the herbaceous plants at the . study sites. Seventeen taxa including 17 species of 15 genera of 9 families were investigated for naturalized plants and ratio of naturalization was 13.6 percents at the study sites. Glehnia littorolis Fr. Schm. and Lilium callosum S. et Z. appeared as rare and endangered plants designated in Korea Forest Service. Nine taxa in degree 1, 2 taxa in degree 2, 4 taxa in degree 3, 2 taxa in degree 4 and 2 taxa in degree 5 were represented for especialized species.