• Journal of Ecology and Environment
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• v.38 no.4
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• pp.599-609
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• 2015

A total of 19 species of three genera Dinophysis, Histioneis, and Parahistioneis of the family Dinophysaceae are reported here from samples obtained using a 20-µm mesh net from June 2006 to December 2014 around Jeju Island including the East China Sea, and 16 of these species are new to Korean waters. A checklist of the three genera of dinoflagellates reported from coastal and oceanic Korean waters is presented. Short descriptions and synonyms are given for each species. The dinoflagellates of the family Dinophysaceae belong to mostly marine species, and include many tropical and/or subtropical species. Recently, the composition of dinoflagellate species has changed around Jeju Island as well as in Korean waters due to global warming and climate change. Tropical and subtropical dinoflagellates occur frequently in the coastal waters of Jeju Island, which reflects the ecosystem shift around the sea adjacent to Jeju Island from a temperate to a subtropical / tropical region.

• Korean journal of applied entomology
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• v.47 no.4
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• pp.315-331
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• 2008

A total of 12 species in six genera of the poneromorph subfamilies group in Korea was reviewed. All investigated specimens are classified into three subfamilies; Amblyoponinae, Proceratinae and Ponerinae. Totally six genera were known and Cryptopone, Hypoponera, Pachycondyla and Ponera belong to the subfamily Ponerinae and Amblyopone and Proceratium belongs to the subfamily Amblyoponinae and Proceratinae respectively. In this study, keys to the all known genera and species of the subfamilies in Korea are presented. A synonymic list, description of a worker and comments on each species are given with SEM photographs of worker.

• Journal of Forest and Environmental Science
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• v.33 no.1
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• pp.49-65
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• 2017

Overall, 3,950 mushroom specimens were collected from the Central Cardamom Protected Forest (CCPF) in Koh Kong province, the Kirirom National Park (KNP) in Kampong Speu province, the Seima Biodiversity Conservation Area (SBCA) in Kratie province, the Mondulkiri Protected Forest (MPF) in Mondulkiri province, the Phnom Bokor National Park (PBNP) in Kampot province, the Western Siem Pang Protected Forest (SPPF) in Stung Treng province, the Ream National Park (RNP) in Sihanoukville province of Cambodia from 2009 to 2014, and then they were identified and classified into 302 species, 165 genera, and 64 families by morphological and genetical characteristics. The mushrooms belongs to Ascomycota were classified into 26 species, 14 genera, and 10 families, while those belongs to Basidiomycota were classified into 276 species, 151 genera, and 54 families, respectively. Among these mushrooms, the most species-rich families are Polyporaceae (26.2%), Marasmiaceae (9.1%), Ganodermataceae (7.7%), Hymenochaetaceae (7.5%), and Mycenaceae (7.1%), and comprised 57.5% of the total specimens identified.

• Journal of Forest and Environmental Science
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• v.35 no.4
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• pp.268-271
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• 2019

Mushroom survey and collection were conducted in the Phousabous National Protected Area (PNPA), which is located at the Northeastern area 230km from the capital city of Lao-PDR, Vientiane, from April 2017 to September 2018. During this periods, mushroom specimens were collected from 8 different locations, and then they were identified and classified into 284 species, 142 genera, 56 families, 20 orders and 7 classes by morphological and molecular analyses. The mushrooms belongs to Ascomycota were classified into 10 species, 5 genera, 5 families, 4 orders and 3 classes, while those belongs to Basidiomycota were classified into 274 species, 137 genera, 51 families, 16 orders, and 4 classes, respectively. Among these mushrooms, the most species-rich families are Boletaceae (16.06%), Polyporaceae (10.12%), Russulaceae (9.94%), Amanitaceae (7.68%), Agaricaceae (4.54%), Marasmiaceae (4.36%), Cortinariaceae (3.66%), Entolomataceae (3.66%), Mycenaceae (2.79%), Xylariaceae (2.44%), Physalacriaceae (2.09%), Omphalotaceae (2.09%), Hydnangitaceae (2.09%), Lyophyllaceae (1.92%), Tricholomataceae (1.75%) and comprised 75.19% of the total specimens identified.

• Microbiology and Biotechnology Letters
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• v.44 no.2
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• pp.180-184
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• 2016

In this study, we evaluated complex media with influent sewage water (ISW) to isolate novel taxa of bacteria. It was possible to cultivate 13 genera using the complex media with ISW. Additionally, more diverse genera were identified at 37℃ than at 25℃, using the complex media with ISW. Total 12 strains of 179 bacterial isolates were shared less than 97% 16S rRNA gene sequence similarities with any known species. These isolates could be assigned to genera Tessaracoccus, Paracoccus, or Candidimonas (or Paralcaligenes).

• Mycobiology
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• v.45 no.1
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• pp.9-14
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• 2017

Most known species in the Physalacriaceae are saprotrophs that grow on decaying leaves and wood, and approximately 21 genera in the Physalacriaceae have been reported worldwide. During an ongoing survey of indigenous fungi in Korea, four specimens belonging to the Physalacriaceae were collected on Ulleung Island. These specimens were identified as three species based on morphological characteristics and molecular analysis of rDNA-internal transcribed spacer sequences. Three species in three genera were shown to be new records in Korea: Hymenopellis orientalis, Paraxerula hongoi, and Ponticulomyces orientalis. The latter two are the first records of these genera in Korea. In this study, we provide detailed morphological descriptions of these species and describe their phylogenetic position within the Physalacriaceae.

• Korean journal of applied entomology
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• v.12 no.3
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• pp.125-130
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• 1973

To study the faunal compositiion of spiders as natural enemies of the insect pests and their seasonal fluctuation in paddy fields of Taegu, the survey was carried out 12 times between June and September. 1971. 1. The spiders collected in paddy field of Taegu during the survey period were 45 species of 30 genera of 10 families. 2. In percentage composition the spiders of the genus Pirata were most abundant. Among the other genera, the species of the genus Neoscona, Lycosa, and Marpisa were more abundant in the above-written order. 3. Pirata subpiraticus, Neoscona doenitzi, Lycosa sp., Pardosa T-insignita and Marpisa magister were the 5 major species of abundant spiders. 4. Comparing the spider-fauna of the paddy field of Korea with that of Japan, Taiwan and Thailand, 2 species of 2 genera of the family Gnaphosidae were found in Korea only The abundant and common species It·ere deeply different each other. 5. Pirata subpiraticus, Lycosa sp. and Pardosa T-insignita appeared abundantly between June and July while Neoscona doenitzi and Marpisa magister were few in these periods. But no Pirata subpiraticus, Lycosa sp. and Pardosa T-insignita appeared in August while Neoscona doenitzi and Marpisa magister were abundant in this period. Then, in September as between June and July, Pirata subpiraticus, Lycosa sp. and Pardosa Tinsignita were abundant while Neoscona doenitzi and Marpisa magister decreased.

• Genomics & Informatics
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• v.12 no.3
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• pp.87-97
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• 2014

Although the number of protein-coding genes is not highly variable between plant taxa, the DNA content in their genomes is highly variable, by as much as 2,056-fold from a 1C amount of 0.0648 pg to 132.5 pg. The mean 1C-value in plants is 2.4 pg, and genome size expansion/contraction is lineage-specific in plant taxonomy. Transposable element fractions in plant genomes are also variable, as low as ~3% in small genomes and as high as ~85% in large genomes, indicating that genome size is a linear function of transposable element content. Of the 2 classes of transposable elements, the dynamics of class 1 long terminal repeat (LTR) retrotransposons is a major contributor to the 1C value differences among plants. The activity of LTR retrotransposons is under the control of epigenetic suppressing mechanisms. Also, genome-purging mechanisms have been adopted to counter-balance the genome size amplification. With a wealth of information on whole-genome sequences in plant genomes, it was revealed that several genome-purging mechanisms have been employed, depending on plant taxa. Two genera, Lilium and Fritillaria, are known to have large genomes in angiosperms. There were twice times of concerted genome size evolutions in the family Liliaceae during the divergence of the current genera in Liliaceae. In addition to the LTR retrotransposons, non-LTR retrotransposons and satellite DNAs contributed to the huge genomes in the two genera by possible failure of genome counter-balancing mechanisms.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.2 no.1
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• pp.16-24
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• 1969

The present paper deals with the seasonal changes in abundance and composition of diatoms in the Suyung Bay, Pusan, Korea. This study was carried out from August 1966 through July 1967 As a result of the present study, 123 species of diatoms were Identified. While the highest number of diatoms (2,554,000 cells per liter) was recorded in April of 1967, the lowest number (20,400 cells per liter) appeared in December of 1966. In genera the standing stock of diatoms was high in spring and early fall and was low in late fall and winter. Two genera of the diatoms, Chaetoceros and Skeletonema, occupied a great portion of the diatom population throughout the course of this study. The following genera also appeared abundantly: Asterionella, Eucompia, Leptocylindrus and Nitzschia.

• Mycobiology
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• v.44 no.3
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• pp.137-145
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• 2016

Most known species in the Strophariaceae are decomposers and grow on various kind of organic matter. Approximately 18 genera and 1,316 species in the Strophariaceae have been reported worldwide. Through an ongoing survey of indigenous fungi in Korea, 29 specimens belonging to the Strophariaceae were collected from 2012 to 2016. These specimens were identified based on morphological characteristics and molecular analysis of internal transcribed spacer sequences. Fifteen taxa were confirmed, with eight species matching those previously recorded. Seven species in five genera were shown to be new records in Korea: Galerina marginata, Gymnopilus crociphyllus, Gymnopilus picreus, Hebeloma birrus, Hebeloma cavipes, Pholiota multicingulata, and Psilocybe thaizapoteca. In this study, we provide detailed morphological descriptions of these species and investigate their evolutionary relationships by constructing phylogenetic trees.