• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2023.04a
• /
• pp.15-15
• /
• 2023

The chloroplast (cp) is an autonomous plant organelle with an individual genome that codes for essential cellular functions. The architecture and gene content of the cp genome is highly conserved in angiosperms. The plastome of Corydalis belongs to the Papaveraceae family, and the genome is comprised of unusual rearrangements and gene content. Thus far, no extensive comparative studies have been carried out to understand the evolution of Corydalis chloroplast genomes. Therefore, the Corydalis platycarpa cp genome was sequenced, and wide-scale comparative studies were conducted using publicly available twenty Corydalis plastomes. Comparative analyses showed that an extensive genome rearrangement and IR expansion occurred, and these events evolved independently in the Corydalis species. In addition, the protein-coding genes accD and the ndh gene loss events occurred in the common ancestor of the Corydalis and sub-clade of the Corydalis lineage, respectively. The gene ndh lost in the Corydalis-sub clade species is distributed predominantly in the Qinghai-Tibetan plateau (QTP) region. The molecular clock analysis suggests that the divergence time of all the ndh gene lost Corydalis sub-clade species occurred in the 44.31 - 15.71 mya. These results coincide very well with the uplift of the Qinghai-Tibet Plateau in the Oligocene and Miocene periods, and maybe during this period, it probably triggered the radiation of the Corydalis species. To the best of the authors' knowledge, this is the first large-scale comparative study of Corydalis plastomes and their evolution. The present study may provide insights into the plastome architecture and the molecular evolution of Corydalis species.

• Korean Journal of Plant Taxonomy
• /
• v.38 no.4
• /
• pp.531-537
• /
• 2008

We report an unrecorded species of Corydalis sect. Corydalis (Fumariaceae), C. caudata (Lam.) Pers., that have been found in the central part of Korea. This species is easily recognized by its bearded calyx, upwardly curved spur, and multi-branched characteristics. We named it 'Soo-yeom-hyeon-ho-saek' as korean common name.

• Korean Journal of Plant Taxonomy
• /
• v.36 no.2
• /
• pp.137-144
• /
• 2006

A new species of Corydalis sect. Corydalis (Fumariaceae), C. misandra B.U.Oh, is described from the provinces of Gyonggi-do and Gangwon-do in Korea. The new species is distinct from its close relative C. namdoensis in having elliptic or linear leaflet shape, entire or slightly dentate bract apex, broad and rhomboidal lower outer petal, 14 papillate stigma, oblong stamen and linear capsule with one rowed seeds, etc.

• Korean Journal of Plant Taxonomy
• /
• v.34 no.3
• /
• pp.265-271
• /
• 2004

A new species of Corydalis sect. Corydalis (Fumariaceae), C. namdoensis B.U. Oh et J.G. Kim, is described from the central and southern part of Korea. The new species is distinct from its close relative C. albipetala in having very variable leaf shapes, broadly flattened fusiform fruits, seed arrangement nearly in two rows in capsule, V-shaped inner petal apex and limited distribution area.

• Korean Journal of Plant Taxonomy
• /
• v.40 no.2
• /
• pp.79-83
• /
• 2010

A new species of Corydalis L. (Fumariaceae), C. alata was discovered in Pohang-si, Gyeongsangbuk-do in Korea and is described and illustrated here. The newly described species C. alata is distinct from the closely-related species C. maculata by having tubers with whitish inner surface, sagittate base of the lower outer petals, and smaller seeds.

• Korean Journal of Plant Taxonomy
• /
• v.37 no.3
• /
• pp.217-224
• /
• 2007

A new species of Corydalis sect. Corydalis (Fumariaceae), Corydalis cornupetala Y.H. Kim et J.H. Jeong is described from Gyeongsan-si, Gyeongsangbuk-do in Korea. This new species is distinguished from the other species of the sect. Corydalis by some flower characters such as, purplish white petal with two dark stripes and horn-shaped apex of outer petal. The linear leaflets of C. cornupetala are similar to the lineariloba type of C. remota Fisch. ex Max. or C. namdoensis B.U. Oh et J.G. Kim, but much longer and narrower. The linear or lanceolate bract of C. cornupetala is also distinctive from the elliptical shape of C. remota and C. namdoensis.

• The Korean Journal of Mycology
• /
• v.46 no.4
• /
• pp.505-510
• /
• 2018

Peronospora is the largest genus of the order Peronosporales (Oomycota) and contains more than 550 accepted species, which causes downy mildew on many economically important crops. During a survey of downy mildew flora in Korea, a previously unreported species of Peronospora has been found on Corydalis ambigua. Based on molecular phylogenetic and morphological analyses, the causal agent was identified as Peronospora bulbocapni. This is the first report of Peronospora bulbocapni occurring on Corydalis ambigua in Korea.

• Korean Journal of Plant Taxonomy
• /
• v.47 no.4
• /
• pp.308-315
• /
• 2017

A new species, Corydalis bonghwaensis M. Kim & H. Jo, is described here. It is found on a mountain slope in Bongwha-gun, Gyeongsangbuk-do, Korea. Corydalis bonghwaensis shares several characteristics (white flowers, glabrous pedicels, white tubers, and the polygonal stigma) with related species C. namdoensis B. U. Oh & J. G. Kim and C. albipetala B. U. Oh. However, this new species has flowers which change from pale-yellow to white, a mucronated inner-petal apex, linear leaflets, and fusiform capsules with two-rowed seeds. In contrast, C. namdoensis has retuse inner-petal apex, various leaflets, and fusiform capsules with 2-rowed seeds. C. albipetala has retuse inner-petal apex, elliptical leaflets, and linear capsule with 1-rowed seeds. Also C. humilis B. U. Oh & Y. S. Kim has pale-blue purple flowers, elliptical leaflets, inflorescence with 1-5 flowers, and hemispherical lower-outer petal.

• Korean Journal of Environment and Ecology
• /
• v.28 no.5
• /
• pp.495-499
• /
• 2014

To search for myrmecochorous plant species, related ant species and diaspore selecting behaviour, collecting fruits and diaspores of four Corydalis species, cafeteria experiments, and the related ant species were studied from May 2013 to July 2014. Four Corydalis species recording in Korea were proved myrmecochorous (seed attached elaiosome) plants newly. Elaiosome shape of these species is spatulate-shaped, but their size is varied considerably in length and width. Significant differences is proved between four plant species in weight of diaspores, seeds and elaiosomes, and elaiosome ratios. Mean values of diaspores weight showed 4.08 mg, 2.56 mg, 2.49 mg and 2.06 mg in Corydalis grandicalyx, C. remota, C. turtschaninovii for. pectinata and C. turtschaninovii var. linearis, respectively. Mean values of seed weights showed 3.68 mg, 2.03 mg, 1.90 mg and 1.67 mg in Corydalis grandicalyx, C. remota, C. turtschaninovii for. pectinata and C. turtschaninovii var. linearis, respectively. Elaiosome ratio of C. turtschaninovii var. linearis was the highest, followed by C. remota, C. turtschaninovii for. pectinata and C. grandicalyx. Ant's preference for the diaspores is ordered as same as elaiosome ratio's order. Major ant species transporting the diaspores of Corydalis species are Formica japonica, Lasius alienus, Lasius japonicus and Tetramorium tsushimae. Formica japonica transports the diaspores most frequently. Ant's preference for the diaspores among plant species or individuals might be influenced on the survival rates of concerned species. Further studies on the myrmecochorous plant and related ant species, cafeteria experiments should be needed.

• Bulletin of the Korean Chemical Society
• /
• v.32 no.10
• /
• pp.3597-3602
• /
• 2011

A simple and rapid analytical method was developed for the determination of eight isoquinoline alkaloids in Corydalis species. Eight isoquinoline alkaloids, including 2 aporphine alkaloids (isocorydine and glaucine) and 6 protoberberine alkaloids (coptisine, palmatine, berberine, canadine, corydaline, and tetrahydrocoptisine) were used as chemical markers which have a various biological activity and determined for quality control of Corydalis (C.) species (C. ternata, C. yanhusuo, and C. decumbens). To evaluate the quality of these herbal medicines, LC chromatographic separation of alkaloids were preferentially investigated on reversed-phase C18 column with pH variation and composition of mobile phase. In addition, the separation of these alkaloids in herbal extracts was found to be significantly affected on mobile phase composition using gradient elution. Especially for C. yanhusuo extract, berberine was seriously interfered with other alkaloid extracted from sample matrix when mobile phase composition was not optimized. As results, these compounds were successfully separated within 28 min using 10 mM ammonium acetate containing 0.2% triethylamine (adjusted at pH 5.0) as a mobile phase with gradient elution. On the basis of optimized HPLC conditions, 23 different Corydalis species samples were analyzed for the determination of alkaloid levels. In addition, principal component analysis (PCA) combined with the chromatographic data could be successfully classified the different geographic origin samples.