• Korean Journal of Weed Science
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• v.13 no.2
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• pp.132-137
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• 1993

Some biological characteristics with respect to tuber formation of Eleocharis kuroguwai Ohwi were investigated. Tuber formation was initiated at the descending time of daily maximum and minimum temperatures, accelerated under the minimum temperature lower than $20^{\circ}C$, and terminated at about $10^{\circ}C$. Tubers produced at the early season were located at deeper soil layers. Large tubers were found at deeper soil depths and required the longer period for sprouting as compared with small tubers. Percent emergence decreased as the emergence depth increased, while percent old-tuber produced during previous years was greater at the deeper depths.

• The Korean Journal of Mycology
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• v.24 no.2 s.77
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• pp.127-134
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• 1996

Armillaria isolates (KNU-A110, KNU-A234, KNU-A1022 and KNU-A1030) were excellent isolates for producing Gastrodia tuber in farm cultivation. Depth of soil between $10\;cm{\sim}19\;cm$ was favorable for producing Gastrodia tuber and rhizomorph at cultivated area. Eighty nine isolates were collected from 5 countries; 16 from Japan, 22 from USA, 26 from France, 4 from Africa and 21 from Korea. Mycelial fan of most isolates were better formed on basal medium with lemon extract than without lemon.A. mellea (KNU-A997) were strongly pathogenic to Gastrodia but A. gallica (KNU-A110) were excellent symbiotic to Gastrodia tuber. Mycelial growth were good on basal medium containing $0.25%{\sim}0.5%$ ethanol and sawdust spawn added wheat bran and corncob. Liquid culture inoculation were not only fast growth of mycelium but also reduction of contamination.

• Korean Journal of Medicinal Crop Science
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• v.3 no.1
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• pp.56-60
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• 1995

Experiment for analysing changes of growth, tuber yield and total sugar content during wintering was performed with Maekmoondong 1(L. platyphylla WANG et TANG). The growth of over ground characteristics including leaf length, tiller number and fresh leaf weight lasted to the middle of April. The growth and filling of tuber were progressed and got to the top of tuber yield (387kg/l0a) in the middle of March, showing the optimum harvesting time in Big Blue Lilyturf cultivation. Total sugar content showed the highest value(79%) in the late of January and was decreased gradually to the middle of March during wintering. There was highly significant negative correlation between total sugar content and tuber yield.

• Korean Journal of Pharmacognosy
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• v.43 no.1
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• pp.16-21
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• 2012

The characteristics of decoction water are important for the extraction of herbal drugs. In this study, the relationship between the characteristics of water and extraction efficiency of bioactive compounds from Corydalis tuber was investigated. Six different types of decoction water, including three types of mineral water from Jeju Island and three types of bottled water sold in market, were used as decoction water for the extraction of bioactive compounds from Corydalis tuber. The contents of minerals in six types of water were analyzed by ICP-AES and ICP-MS; the contents of extracted bioactive compounds were analyzed by HPLC. Multivariate analysis of variance was used to analyze the differences in total extraction and bioactive compounds extracted with six types of water. Multiple factor analysis was used to analyze the relationship among the pH, content of mineral, anion, total extractions and content of bioactive components as factors. There was a significant difference among the six types of water in the total extracts and the bioactive compounds. The results proved that the content of extracted compounds from Corydalis tuber was influenced by the types of decoction water.

• Journal of Oriental Physiology
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• v.14 no.2 s.20
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• pp.55-66
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• 1999

The effects of Bogi, Boyang and Onri herbs on glutamate receptor using nystatin perforated patch clamp under voltage clamp were investigated and the following results was obtained. Ginseng radix and Astragali radix were chosen as Bogi herbs. Cervi cornu and Boshniakiae herba were used as Boyang herbs. Aconiti tuber and Zingiberis rhizoma were selected as Onri herbs. 1. $10^{-6}M$ of glycine brought about the increase of the ion currents by Astragali radix. Cervi cornu. Boshniakiae herba and Aconiti tuber to a minute extent that has no experimental meaning. 2. It was assumed that Bogi herb had no effect on glutamate receptor since the ion currents of Ginseng radix and Astragali radix that are Bogi herbs had not been inhibited to a great extent by D-AP5 and CNQX. 3. Boyang herbs were seem to have meaningful relationship with non-NMDA receptor since the ion currents by Cervi cornu and Boshniakiae that are Boyang herbs were inhibited by CNQX but not inhibited to a meaningful extent by D-AP5. 4. D-AP5 had not a significant effect on the ion currents activated by Onri herbs such as Aconiti tuber and Zingiberis rhizoma. CNQX had a significant effect on the ion currents of Aconiti tuber but no effect on the ion currents of Zingiberis rhizoma. Therefore, it seemed that Aconiti tuber had a relationship with non-NMDA receptor while Zingiberis rhizoma had no relationship with glutamate receptor. In summary, Bogi, Boyang and Onri herbs had different effects through different mechanisms on glutamate receptor. Hence it was believed that. through experiments on acetylcholine receptor new classification could be made.

• Korean Journal of Pharmacognosy
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• v.36 no.3 s.142
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• pp.235-239
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• 2005

Changes in chemical composition of the ethanolic extract of roasted Asparagi Tuber were investigated by HPLC. One dramatically increased peak $(t_R\;14.85 min)$ was isolated by silica gel column chromatograph and identified as 5-hydroxymethyl furfural (HMF) by comparing its $1^H-NMR$ data with that of a commercial standard. HMF content reached its maximum level at $190^{\circ}C$ for 60 minutes. Under these conditions, HMF contents in the roasted Asparagi Tuber was increased about thirteen times (9.26mg/g) over the not-roasted control (0.71 mg/g). No significant differences were found in macrophage-activating, prolyl endopeptidase-inhibiting, antioxidative (DPPH), anti-coagulating (activated partial thromboplastin times), and ACE-inhibiting activities between roasted and not-roasted Asparagi Tuber.

• The Korea Journal of Herbology
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• v.28 no.6
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• pp.53-58
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• 2013

Objectives : Pinelliae Tuber has been used as a typical unauthentic herbal medicines. Due to the morphological similarity between Pinelliae Tuber and adulterants, the correct authentication is very difficult. Therefore, we introduced DNA barcode to establish a powerful tool for the authentication of Pinelliae Tuner from adulterants. Methods : To obtain DNA barcode regions, genomic DNA was extracted from nineteen specimens of Pinellia ternata, Pinellia pedatisecta, Pinellia tripartita, and Typhonium flagelliforme, and matK and rbcL genes were amplified. For identification of species specific sequences and analysis phylogenetic relationship, a comparative analysis were performed by the ClastalW and UPGMA based on entire sequences of matK and rbcL genes, respectively. Results : In comparison of two DNA barcode sequences, we elucidated the phylogenetic relationship showing distinct four groups depending on species and identified 40 and 20 species specific nucleotides enough to distinguish each species from matK and rbcL gene, respectively. The sequence differences at the corresponding positions were avaliable genetic marker nulceotides to discriminate the correct species among analyzed four species. These results indicated that phylogentic and comparative analysis of matK and rbcL genes are useful genetic markers to authenticate Pinelliae Tubers. Conclusions : The marker nucleotides enough to distinguish P. ternata, P. tripatrita, P. peditisecta, and T. flagelliform, were observed at 40 positions in matK gene and 20 positions in rbcL gene sequence, respectively. These differences can be used to authenticate Pinelliae Tuber from adulterants as well as discriminate each four species.

• The Korea Journal of Herbology
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• v.24 no.4
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• pp.87-93
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• 2009

Objectives : Aconiti Lateralis Preparata Radix (附子) and Aconiti Tuber (川烏) are not commonly prescribed, but are necessary for some clinical conditions, despite of the fact that some negative effects have been known to occur with these medicines. This study shows the consequences for aspartate aminotransferase (AST), alanine aminotransferase (ALT) due to herbal medicines, including Aconiti Lateralis Preparata Radix (附子) and Aconiti Tuber (川烏). Methods : From 1st June 2007 to 10th May 2009, the results were analyzed for 64 patients belonging to the OO Oriental Medical Hospital who took herbal medicine, including Aconiti Lateralis Preparata Radix (附子) and Aconiti Tuber (川烏), more than 20 days. This is the study about the comparison and the investigation of AST, ALT. And the results were taken upon their hospitalization and to their departure. The Criteria of Diagnosis in Liver Injury of CIOMS was used as a standard for their examinations. Results : AST, ALT (total 64). The number of patients who were within normal reference value : 49. The number of patients who exceed the normal reference value after dosage, without satisfying the Criteria of Diagnosis in Liver Injury : 5. The number of patients who were recovered in normal reference value after dosage : 9. The number of patients who satisfying the Criteria of Diagnosis in Liver Injury after dosage : 1. Conclusions : This results suggest that these herbal medicines, including Aconiti Lateralis Preparata Radix (附子) and Aconiti Tuber (川烏), didn't cause adverse side-effects on AST, ALT of the patients who are taking them.

• Animal Systematics, Evolution and Diversity
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• v.29 no.1
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• pp.70-73
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• 2013

Diadegma fenestrale is known as a parasitoid of the potato tuber moth, Phthorimaea operculella. The potato tuber moth, Phthorimaea operculella (Zeller) is one of the most destructive pest of potatoes. Also, we found this species attacking the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae). Ratio of parasitism is 20-30% and cocoon of lepidopteran was parasitic ichneumonid species after 3 days. This species and the genus Diadegma are recorded for the first time from Korea. In this paper, description of the parasitoid and photographs of the diagnostic characteristics are provided.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.3
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• pp.515-519
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• 1994

The ComparativThe comperisons of Kintoki bean lectin (KBL) and Taro tuber lectin (TTL) which have been studied in our laboratory are summerized. The recoveries of pure lectins are 0.12% and 0.014%, respectively. They seems to have slight differences in isoelectric points(pH) ; 5.19~5.67 for KBL and 6.41~7.42 for TTL. The minimum concentrations of HA are $2.8\mu\textrm{g}/ml\;and\;21.6\mu\textrm{g}/ml$. The enzymatic modification on HA, growth inhibition, inhibition of nutritional absorption and binding capacities (FITC, $^3H$) of KBL are demonstrated to be much greater than those of TTL.