• Proceedings of the Korean Society of Sericultural Science Conference
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• 2000.10a
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• pp.53-53
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• 2000

• Proceedings of the Korean Society of Sericultural Science Conference
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• 2000.10a
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• pp.54-54
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• 2000

• Research in Plant Disease
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• v.26 no.1
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• pp.53-56
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• 2020

Red spots symptoms were observed on the leaves of Rumex japonicus Houtt. in Goesan, Korea, in May 2019. Diseased leaf showing red spot and white-colored sori were found behind of diseased leaves. Aeciospores were confirmed and observed using a stereomicroscope, light microscope, and scanning electron microscope. They were globose or ovoid and measured 19.0-24.4×19.0-24.5 ㎛, with verrucae ornamentation. For the phylogenetic analysis, partial of large subunit rDNA region and cytochrome c oxidase subunit III were sequenced. As a result, the isolated fungus species showed high similarities with Puccinia prizeliana. Based on the previous report, morphological characters, phylogenetic analysis, it was confirmed as Puccinia phragmitis which have not been reported in Korea, and we firstly report this fungal agent on R. japonicus as P. phragmitis in Korea.

• The Korean Journal of Mycology
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• v.42 no.2
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• pp.138-143
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• 2014

Several isolates were collected from apple, pepper, strawberry, cucumber and tomato having typical gray mold symptoms. All the isolates were identified as Botrytis cinerea by using morphological characteristics and PCR-RFLP method. It was difficult to analyze the phylogenetic relationship of these isolates by using ITS region, HSP60 and G3PDH because these genes were highly homologous in their nucleotide in inter-species of B. cinerea and intra-species of genus Botrytis. However, phylogenetic analysis using combined sequences (RPB2, HSP60 and G3PDH genes) clearly showed that all isolate of B. cinerea were different from Botrytis spp. Furthermore, it was also confirmed that strawberry isolate was distantly related to apple, pepper, cucumber and tomato isolates that were closely related to each other in nucleotide level.

• The Korean Journal of Mycology
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• v.48 no.3
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• pp.313-323
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• 2020

To investigate the morphological characteristics and genetic relationships among isolate of the artificially cultivated mushroom Hypsizygus marmoreus, 111 isolates were collected from Korea and other countries. Random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) and ITS rDNA sequencing were used to confirm the genetic relationships among the collected H. marmoreus isolates. As a result of RAPD analysis using universal rice primer (URP)-PCR, all isolates of H. marmoreus clustered into three groups, which showed high sequence similarity (>90%). In addition, isolates with morphological and geographical differences formed independent clusters. However, it was impossible to distinguish between brown and white strains. Sixteen strains showing morphological and geographic differences were selected, and their ITS region sequences (640 bp) were aligned and compared. The ITS region sequences belonging to these isolates showed 94.8-99.1% similarities to those of publicly available H. marmoreus strains in GenBank. In conclusion, there were differences among isolates in terms of morphology and the area from which they were collected, but all the isolates used in the experiment were classified as H. marmoreus.

• Korean Journal of Plant Resources
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• v.15 no.3
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• pp.250-259
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• 2002

Agromonia pilosa Ledeb. has been used as a medicinal plant in traditional folk remedy. There are few reports on classification, physiology, ecology and morphological studies of Agromonia pilosa L. in Korea. Therefore, advanced approaches on study and development with this plant would be done urgently. Present stndy was carried out to gain basic information on genetic resources and variation with collected domestic landraces through RAPD analysis in Agromonia pilosa L. Forty two collections of Agromonia pilosa L. from nation-wide area including USA one were analyzed by RAPD test. Molecular marker size by amplified DNA band pattern ranged from 300 to 2,100bp. Among the collection, two landraces of Hadong and Cheonghak-dong showed close relation in genetic similarity. Minimum and maximum value by matrix of 1-F among 26 collected landraces were figured out as 0.365 and 0.827 showing mean value for 0.624, respectively. Those landraces were classified into two groups with cluster analysis by Nei and Li's formula from RAPD-analyzed values, and considerable genetic differences were recognized between two groups.

• Korean Journal of Plant Taxonomy
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• v.42 no.1
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• pp.24-39
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• 2012

The palynological study of 31 taxa of Korean Artemisia L. was carried out to evaluate their taxonomic characteristics and to determine the relationships among the taxa. The size and shape of the pollen are not used as characteristics to classify the taxa of Korean Artemisia L., but the granule distribution ands pinule connection on the exine were useful for an interspecific classification and for reflecting the relationship between some taxa. It is considered that Artemisia pollen has evolved from a connected spinule and a nearly psilate surface into 1) a connected spinule and a granule surface, 2) a disconnected spinule and a granule surface, 3) a disconnected spinule and a dense granule surface. These pollen characteristics with external morphological characteristics, a geographical distribution and a somatic chromosome number are considered to be good characteristics for distinguishing the relationship of some taxa, such as the A. japonica group (A. hallaisanensis, A. angustissima, A. littoricola) and the A. sacrorum group (A. sacrorum var. sacrorum, A. sacrorum var. incana, A. sacrorum var. iwayomogi).

• The Journal of the Korea Contents Association
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• v.16 no.3
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• pp.335-345
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• 2016

The purpose of this study is to investigate moderating effect of psychological flexibility on impact which students feel ambivalence over emotional expressiveness in interpersonal relationships. In summary, the results are as follows. Self-defence ambivalence is strong negative influence on subject well-being but concerned-relation ambivalence is not affect at subject well-being. Also, moderating effect of psychological flexibility in concerned-relation ambivalence is not appear on subjective well-bing while self-defence ambivalence is shown moderating effect of psychological at subjective well-being. These results are mean that concerned-relation itself contains psychological flexibility role and psychological flexibility is negative influence on self-defence ambivalence and positive influence at subjective well- being. Moderating effect of psychological flexibility is shown that as important role subjective well-being. So students will need to help accommodate an active experience in the field allow s college students to raise their own psychological flexibility.

• Korean Journal of Social Welfare Studies
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• v.42 no.3
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• pp.329-353
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• 2011

Adolescence is the important period of experiencing primary social relations through family relations. Adolescent of grandparent-grandchildren family who are provided social welfare service, however, causes many psychological and social problems on account of the negative family relationship, so it is needed resilience in order to recover from those circumstances through easing their negative family relations. This study set self esteem, empathy and internal·external locus control as parameters in order to know how negative family relations of grandparent-grandchildren family could influence the resilience of adolescent, then tried to reveal the entire and synthetic causal relationship in paths of them. For this, we analyzed 492 cases of grandparent-grandchildren family adolescent, which had negative family relations. In this process, we used Amos 19.0, analyzed interrelation and path, and examined significance of type and statistical significance in direct-indirect effect between paths. As the analysis result, we proposed that the development of social welfare program and use of it centered on self-esteem, empathy and internal-external control to the family relations of grandparent-grandchildren family adolescents was a practical approaching task of social welfare for them.

• KDI Journal of Economic Policy
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• v.16 no.4
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• pp.141-167
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• 1994

본 연구는 현행 우리나라 노사관계(勞使關係)의 특정을 분석한 후, 미(美) 일(日) 등 선진국가의 노사관계(勞使關係) 경험으로부터 시사점을 도출하여 경제적(經濟的) 합리성(合理性)에 기초한 합리적(合理的) 노사관계(勞使關係)를 정립하기 위한 기본방향(基本方向)과 제도개선방안(制度改善方案)을 제시하였다. 첫째, 파업비용(罷業費用)이 작아 노동조합의 힘이 과도하게 커졌던 교섭력(交涉力)의 부균형(不均衡) 구조(構造)를 개선해야 한다. 반면에 한계근로자(限界勤勞者)는 주로 근로기준법(勤勞基準法)에 의해 보호를 받고 있으므로 법정근로기준(法定勤勞基準)을 일률적(一律的)으로 하향조정(下向調整)하는 것은 바람직하지 않다. 둘째, '종업원만족(從業員滿足)을 통한 고객만족(顧客滿足)', '정보공유(情報共有)를 통한 파업예방(罷業豫防)'을 위해 노사협의회(勞使協議會)의 기능을 강화(强化)하여 근로자(勤勞者) 경영참여(經營參與)를 확대(擴大)해야 한다. 셋째 유연(柔軟)한 인력관리(人力管理)를 위해 고용관계(雇傭關係)의 경직성을 초래하는 법 제도를 개선해야 한다. 유연한 고용조정을 위한 정리해고규제(整理解雇規制) 완화(緩和), 다양한 근로관계의 형성에 유연하게 대응하기 위한 고용결약(雇傭契約)의 자유화(自由化) 확대(擴大)등이 이루어져야 할 것이다. 넷째, 노사분쟁(勞使紛爭)의 소지가 많아지고 파업(罷業)의 경제적(經濟的) 비용(費用)이 크게 증대될 것이므로 노사분쟁처리의 공정성(公正性)을 제고하기 위해 중재위원(仲裁委員) 선정방법(選定方法) 개선(改善) 등의 제도개선이 있어야 한다.