• Journal of Plant Biotechnology
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• 제37권4호
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• pp.400-407
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• 2010

Zoysiagrass (Zoysia japonica Steud.), also called Korean or Japanese lawngrass, is the most popular warm-season turfgrass in Korea and is widely used for home lawns, parks, roadsides, golf courses and athletic fields. Its use is rapidly expanding in Korea and the other countries, due to its excellent characteristics which include tolerance to heat, drought and salinity. As the utilization area of this turfgrass increases, there is an increase in the demand for improved cultivars with disease and insect tolerance or with herbicide-tolerance or with extended greening periods. Conventional breeding methods have been used to improve the traits described above with limited success. However, with the advances in biotechnology, genetic transformation can be utilized for turfgrass improvement. In this paper, we review recent progress in biotechnological improvement of zoysiagrass and discuss future molecular breeding of this species.

• 식물분류학회지
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• 제33권3호
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• pp.271-277
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• 2003

난대림 지역인 전라남도 신안군 흑산면 가거도에서 발견된 미기록 1종 푸른가막살(Viburnum japonicum (Thunb.) Sprengel)을 보고한다. 잎은 상록성으로 털이 없고 광택이 있으며 겨울눈은 나출되어 있어 이미 보고된 가막살나무속(Viburnum)의 다른 종들과 쉽게 구별된다.

• ALGAE
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• 제18권4호
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• pp.311-320
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• 2003

The community structure of benthic marine algae was investigated at Taean Thermal Power Plant and other places around Taean Peninsula, the west coast of Korea. Total of 100 species including 3 Cyanophyta, 14 Chlorophyta, 18 Phaeophyta, and 65 Rhodophyta were identified. The number of species was highest with 78 species at the Power Plant intake, followed by 61 at the discharge, 56 at Bunjeondo, and 50 at Maoe. It was noteworthy that a subtropical species Caulerpa okamurae was collected at the intake in autumn and it was the first observation in the west coast of Korea. The pattern of vertical algal distribution showed Gloiopeltis furcata occurred in the upper intertidal zone, Sargassum thunbergii and Corallina spp. in the middle and lower zone and Enteromorpha spp. in the lower middle zone. These were all dominant species except for Enteromopha spp., which was subdominant species. Other subdominant species were Chondrus ocellatus and Neorhodomela aculeata. The average diversity indices were between 0.70 and 1.20 at each area based on their dry weight. The similarity index was 0.79 between the algal flora of this study and that of 1987, indicating that the condition of the benthic environment remained unchanged since then. This area maintained its environmental quality, so the algal community remained same with similar structure. This study area seemed a suitable place for long term monitoring of the benthic environment where industrial facilities such as a power plant might affect the benthic algal community.

• Journal of Forest and Environmental Science
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• 제38권4호
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• pp.229-238
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• 2022

Q. mongolica and Q. dentata are representative species of deciduous forest communities in Korea and are known to be relatively resistant to soil drying condition among Korean oaks. This study attempted to elucidate the degree of competition and ecological niche characteristics of the two species by comparing the ecological responses of the two species according to soil moisture. Competition between Q. mongolica and Q. dentata was shown to be more intense under the conditions where moisture content was low than under the conditions where moisture content was high. As for the ecological niche overlaps of the two species for soil moisture, the structural traits of plant such as stem diameter overlapped the most, the traits of biomass such as petiole weight overlapped the least, and photosynthetic organ-related traits such as leaf width and length overlapped intermediately. When looking at the competition for soil moisture between the two species, it can be seen that Q. mongolica won in nine traits (leaf width length, leaf lamina length, leaf lamina weight, leaf petiole weight, leaf area, leaves weight, shoot weight, root weight, and plant weight) and Q. dentata won in the remaining seven traits (leaf petiole length, leaves number, stem length, stem diameter, stem weight, shoot length, and root length). Competition between the two species for the moisture environment of the soil was shown to be intense under the conditions where moisture content was low. The degree of competition between Q. dentata and Q. mongolica for soil moisture is high under the conditions where soil moisture content is low, and it is judged that Q. mongolica is more competitive for soil moisture than Q. dentata.

• 한국균학회지
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• 제51권4호
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• pp.419-428
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• 2023

Several endophytic fungal strains were isolated from Taxus cuspidata and identified by molecular analysis of the internal transcribed spacer and RNA polymerase II second largest subunit. This study aimed to determine the relative abundance and compare the species diversity of endophytic fungal communities within needle leaves and twigs. We identified a total of 49 endophytic fungal species. Notably, two species, Trichoderma dingleyae and Xylaria cubensis, were discovered to be previously unrecorded in Korea. The fungal communities in both plant tissues demonstrated distinct species composition. Differences were observed in the relative abundance and species diversity index between needle leaves and twigs. Our findings suggest that the host plant tissues influence the species diversity of endophytic fungal communities.

• 한국균학회지
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• 제40권1호
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• pp.39-43
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• 2012

독특한 자연환경과 다양한 생물상을 지닌 제주도에서 지역민들에게 이용되어 왔던 자생버섯에 대한 전통지식을 조사하였다. 제주도 전 지역을 조사 대상으로 하였으며, 제주와 서귀포시 내에 있는 7개 읍과 4개의 면을 대상으로 총 50개의 마을을 조사하였으며 50~90대 사이의 노인들 93명을 방문하여 녹취하고 야장을 작성하였다. 그 결과 제주도에서 이용되어온 야생버섯은 모두 23종으로 나타났고, 그 중 독버섯은 2종, 약용버섯은 7종, 민속신앙에 이용되었던 버섯이 2종, 이용되지는 않았으나 관심 대상이었던 버섯이 2종, 그리고 식용버섯은 12종으로 조사되었다. 또한 야생버섯을 이용하는 전통지식으로 267건의 전통지식이 수집되었다. 그 중 식용버섯은 12종에서 197건의 전통지식이 수집되었고, 독버섯에 2종에서 43건이 수집 되었으며, 약용버섯에 대한 정보는 7종에서 16건의 전통지식이 조사되었다. 특이한 점은 동물의 분변이나 퇴비에 발생하는 Cyathus stercoreus을 이용하여 포자괴(spore mass)의 방출 상태를 보고 농사의 길흉을 점쳐왔다는 점이었다. 이는 제주지방만의 독특한 전통지식으로 추정된다.

• 식물분류학회지
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• 제51권1호
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• pp.33-48
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• 2021

We investigated the bryophyte flora of the Gayasan Mountain National Park in Korea by conducting 18 field surveys in from April of 2009 to November of 2016 at various sites on the mountains. During the surveys, we discovered 204 taxa comprising 57 families, 106 genera, 199 species, 2 subspecies, and 3 varieties. Among these, 145 species were reported as new to the flora of Gayasan Mountain. A checklist based on a study of 903 specimens is provided. The most notable species recorded during the surveys were the rare bryophytes Hattoria yakushimensis (Horik.) R. M. Schust., Nipponolejeunea pilifera (Steph.) S. Hatt., Drepanolejeunea angustifolia (Mitt.) Grolle, Lejeuena otiana S. Hatt., Cylindrocolea recurvifolia (Steph.) Inoue and Pogonatum contortum (Menzies ex Brid.) Lesq.

• 식물분류학회지
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• 제39권4호
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• pp.292-295
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• 2009

난대림 지역인 전라남도 신안군 흑산면에서 발견된 한반도 미기록 1종 신안새우난초(Calanthe aristulifera Rchb. f.)를 보고한다. 신안새우난초는 잎의 뒷면에 털이 있고 거가 있다는 점에서 이미 보고된 새우난초속(Calanthe)의 다른 종들과 쉽게 구별된다. 신안새우난초는 새우난속의 교배품종 개발에 매우 중요한 종이다.

• 식물분류학회지
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• 제50권3호
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• pp.368-375
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• 2020

This study presents a survey of the bryophytes of evergreen broad-leaved forest near Baekyaki Oreum in Gujwa-Seongsan Gotjawal in the eastern part of Jejudo Island, Korea. A total of 53 taxa belonging to Bryophyta (11 families 26 genera 39 species) and Marchantiophyta (9 families, 9 genera 14 species) were determined, and the liverwort index was found to be 26.4%. The predominant life-form was the mat type. The rates of bryophytes dominating at mesic to hygric sites were higher than those of bryophytes, which were mainly observed in xeric habitats. These values indicate that the forest areas in this study area have a high density level. Upon an investigation of the substrates, bryophytes on rocks were most diverse. It was also found that volcanic rock masses of various sizes lay scattered over the study area and offer numerous micro-habitats for bryophytes. This is related to the characteristics of Gotjawal. We consider that more detailed studies should be conducted on regional scales to establish the bryophyte flora of Gotjawal and the evergreen broad-leaved forests of Jejudo Island.

• 한국자원식물학회지
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• 제37권2호
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• pp.130-136
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• 2024

Archidium Brid. (Archidiaceae) 속은 극지방을 제외한 아열대에서 온대 지역까지 35종이 분포하는 것으로 알려진 속으로 국내 분포는 명확하지 않았으나 경기도 연천군 감악산에 Archidium ohioense Schimp ex Müll. Hal.이 자생하고 있음을 확인되었다. 본 연구에서는 A. ohioense의 형태학적 기재와 동정을 위한 주요 형질의 사진, 도해 및 검색표를 제시하였다.