• 한국균학회소식:학술대회논문집
• /
• 2009.05a
• /
• pp.26-28
• /
• 2009

• Korean Journal of Plant Resources
• /
• v.34 no.1
• /
• pp.98-102
• /
• 2021

An alien plant of unrecoreded Kickxia (Plantaginaceae) was found in Korea. K. eltine (L.) Dumort. was distirbuted in Yangju-si, Gyoenggi-do and Yeongcheon-si, Gyeongsangbuk-do. This species can be distinguished from the other related genera by having stems that trail along the groud without putting down roots, and the leaves are sagittate, or shaped like arrowheads with longer, narrower, pointed lobes opposite the shorter tip. The new Korean names is given, as 'Hae-ran-cho-a-jae-bi' to Kickxia elatine (L.) Dumort. Here, we provide precise description, illustrations, photographs and taxonomic key to related genera and species.

• Korean Journal of Microbiology
• /
• v.54 no.4
• /
• pp.463-464
• /
• 2018

Tamlana sp. UJ94 isolated from seawater can degrade alginate. To identify the genomic basis of this activity, the genome was sequenced. The genome was composed of 4,116,543 bp, 3,609 coding sequences, and 35.2 mol% G + C content. A BLASTp search predicted the presence of 9 alginate lyases as well as 6 agarases, 5 amylases, 4 carrageenases, 1 cellulase, 4 pectate lyases, and 7 xylanases, indicating its ability to degrade diverse polysaccharides. The genome of strain UJ94 is a source of polysaccharide-degrading enzymes for bioconversion processes.

• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2023.04a
• /
• pp.12-12
• /
• 2023

Plant biomass, or lignocellulose, is one of the most abundant natural resources on earth. Lignocellulosic biomass, such as agricultural and forestry residue, serves as a renewable feedstock for microbial cell factories due to its low price and abundant availability. However, the recalcitrance of lignocellulosic biomass requires a pretreatment process prior to microbial fermentation, from which fermentable sugars including xylose and glucose are generated along with various inhibitory compounds. The presence of furan derivatives, such as 5-hydroxymethyl-2-furaldehyde and 2-furaldehyde (furfural), hampers the microbial conversion of lignocellulosic biomass into value-added commodities. In this study, furfural tolerance was improved by investigating the detoxification mechanism in non-model yeast. The genes encoding aldehyde dehydrogenases were overexpressed to enhance furfural tolerance and resulted in improving cell growth and lipid production that can be converted into biofuel. Taken together, this approach contributes to the understanding of the reducing toxicity mechanism of furfural by the aldehyde dehydrogenases and provides a promising strategy that the use of microorganism as an industrial workhorse to treat efficiently lignocellulosic biomass as sustainable plant derivatives.

• Journal of Environmental Impact Assessment
• /
• v.27 no.6
• /
• pp.521-547
• /
• 2018

To provide fundamental information to areas that lack data on the plant resources and the ecosystem, this study conducted a survey on the vascular plants in Mt. Jigisan in Hongseonggun. The vascular plants identified during the six-round field surveys were a total of 443 taxa: 96 families, 286 genera, 391 species, 7 subspecies, 40 varieties, 3 forms, and 2 hybrids. On floristic regional of Korea, Mt. Jigisan is deciduous broad-leaved and conifer-mixed forest which is south province of Korean peninsula. 4 taxa of Korean endemic plants such as Populus ${\times}$ tomentiglandulosa, Forsytsythia koreana, Forsytsythia ovate, and Iris rossii var. latifolia were collected. The vascular plants on the red list according to IUCN evaluation basis were found to be 6 taxa: Vulnerable (VU) species of Forsytsythia ovata, Least Conern (LC) species of Chionanthus retusus, Pseudoraphis ukishiba, and Cymbidium goeringii, and Not Evaluate (NE) species of Panax ginseng, and Fimbristylis verrucifera. The floristic regional indicator plants were found 27 taxa: 2 taxa of grade V, 3 taxa of grade IV, 6 taxa of grade III, 4 taxa of grade II, and 12 taxa of grade I. The specific distribution plants were found 27 taxa: 4 taxa of northern part of plants, 12 taxa of southern part of plants, 10 taxa of isolation distribution of plants, and 1 taxon of recently reported Viola betonicifolia var. albescens. The invasive alien plants were identified as 67 taxa. The naturalized index (NI) was 15.12%, and urbanization index (UI) was 20.9%, respectively.

• Korean journal of applied entomology
• /
• v.61 no.3
• /
• pp.497-502
• /
• 2022

The genus Ippa Walker, 1864 is reported for the first time from Korea, with a species I. conspersa (Matsumura, 1931). I. conspersa is generally known as myrmecophiles having ecological relationships with some ant species such as Lasius spp. Photographs of adults, immature stages, and the genitalia of I. conspersa are provided.

• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2022.09a
• /
• pp.64-64
• /
• 2022

서리이끼속(Racomitrium Brid.)은 고깔바위이끼과(Grimmiaceae)에 속하며 전 세계에 약 80여종이 알려져 있다. 이 중 한국산 서리이끼속은 18종이 보고되어 있으며, 그 중 6종은 1900년대 초반 한반도에서 최초 발견되어 신종으로 보고되었다. 서리이끼속 이끼류는 주로 양지바른 바위나 사질토양 등에 서식하고, 건조에 강한 것으로 알려져 있다. 원예·조경 분야에서 실내 벽면 및 옥상 녹화용 자원식물로 서리이끼속은 주로 늦은서리이끼(Racomitrium japonicum)와 모래이끼(Racomitrium canescens)가 활용되고 있다. 국내에서도 자원식물로써 선태류에 대한 관심이 증대함에 따라 자생 선태류에 대한 형태적 특징과 함께 생육환경에 대한 정보 제공 요구 또한 증가하고 있다. 이에, 본 연구는 자원식물로 활용이 가능한 한반도산 서리이끼속의 형태·생태적 특징을 파악하고자 하였으며, 기준표본 원산지가 한반도인 서리이끼속 6종을 우선하여 서식 환경 특징을 파악하고자 한다.

• Korean Journal of Microbiology
• /
• v.55 no.1
• /
• pp.39-45
• /
• 2019

In 2017, as a study to discover indigenous prokaryotic species in Korea, a total of 6 bacterial strains assigned to the genus Pseudomonas were isolated from soil. From the high 16S rRNA gene sequence similarity (${\geq}99.5%$) and phylogenetic analysis with closely related species, the isolated strains were identified as independent Pseudomonas species which were unrecorded in Korea. The six Pseudomonas species were Pseudomonas mandelii, P. canadensis, P. thivervalensis, P. jessenii, P. lurida, and P. brenneri. Gram reaction, culture conditions, colony and cell morphology, basic physiological and biochemical characteristics are described in the species description section.

• Korean Journal of Plant Resources
• /
• v.34 no.1
• /
• pp.89-97
• /
• 2021

Two unrecorded alien plants, Pilea microphylla (L.) Liebm. (Urticaceae) and Elsholtzia griffithii Hook. f. (Lamiaceae), were found in Korea. P. microphylla was discovered in Seoul-si and Jeju-do. This species is distinguished from other related Korean taxa by leaf characteristics such as spatulate or obovate shape and 2-7 mm long with entire margin. E. griffithii was discovered in Incheon-si. This species is defined by spikes, narrowly lanceolate bract with 3 mm long and relatively shorter corolla length as ca 2.5 mm. Here, we provide Korean name, descriptions of the morphological characteristics, photographs and a key to allied taxa.

• Korean journal of applied entomology
• /
• v.58 no.3
• /
• pp.229-231
• /
• 2019

A species of pselaphine beetles, Philoscotus rostralis Nomura, is reported in Korea for the first time. Illustrations of a habitus, diagnostic characters and distribution map are provided.