Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Research in Plant Disease
Journal Basic Information
Journal DOI :
Korean Society of Plant Pathology
Editor in Chief :
Volume & Issues
Volume 9, Issue 4 - Dec 2003
Volume 9, Issue 3 - Sep 2003
Volume 9, Issue 2 - Jun 2003
Volume 9, Issue 1 - Mar 2003
Selecting the target year
Review on the Occurrence and Studies of Potato Viral Diseases in Korea
Hahm, Young-Il ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 1~9
DOI : 10.5423/RPD.2003.9.1.001
The occurrence of potato(Sotanum tuberosum) viral diseases caused by Potato virus X(PVX), Potato virus Y (PVY), Potato leafroll virus(PLRV), Potato vims S(PVS), Potato virus M(PVM), Potato virus A(PVA), Potato virus T(PVT), Alfalfa mosic virus(AIMV), Tobacco mosic virus(TMV), Potato mop top virus(PMTV) Tobacco rattle virus(TRV) and Potato spindle tuber viroid(PSTVd), potato witches` broom phytoplasma, have been identified so far in Korea. Major viral diseases such as PVX, PVY and PLRV had been studied more deeply, however, the others are just identified and only partially characterized since the first study on the relation between PVX nucleic acid and virus protein by Kim in 1961. The most studies on potato viral diseases are mainly focused on the problems of seed potato production. The National Alpine Agricultural Experiment Station(NAAES), since it began its activities in 1961, has given special attention to this problem by doing studies to identify, characterize and control potato virus diseases. This effort resulted in the development of new potato virus detection methods as a basis for elaborating new method of control, such as the production of seed potato free of virus and the selection of new virus-resistant transgenic potatoes. The further studies of potato viral diseases required would be fallowings: the continuous monitoring for the occurrence of identified or not identified potato viruses in Korea, the isolation of resistant viral genes, the development of control method for the non-persistently transmitted viruses like PVY, special vectors such as nematode and fungus transmitted viruses, TRV and PMTV and the development of control methods against potato viral diseases by viral cross protection, therapy, transgenic plant, and the use of the agents or molecules, such as virus inhibitors and antiviral proteins, etc., blocking viral replication.
Review of Disease Incidence of Major Crops in 2002
Kim, Choong-Hoe ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 10~17
DOI : 10.5423/RPD.2003.9.1.010
The year of 2002 was very unusual in climatic condition. Warm winter weather, high temperature and drought in March and April, little precipitation in June and early and mid-July and, nearly continuous rain-falls from late July to whole period of August accompanied with low temperature and insufficient sunshine in 2002 resulted in unfavorable conditions for plant growth in one way or another, In relation to the unusual weather, in general, diseases associated with low temperature, poor radiation and much rainfall occurred severely in this year, In rice, incidence of bacterial grain rot, and false smut increased sharply, whereas other major diseases including blast occurred mildly due mainly to the reduced application of nitrogen fertilizer, In vegetables, potato and sweet potato, and fruit trees, incidence of diseases was largely dependent on climatic condition of growth period in particular crops. However, diseases favored low temperature and much rainfall, such as Phytophthora disease increased markedly compared to those of normal years, while anthracnose and soft rot tended to decrease significantly.
Canker of Pomegranate (Punica granatum) Caused by Botryosphaeria dothidea
Kim, Seung-Han ; Kim, Dong-Geun ; Lee, Joon-Tak ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 18~20
DOI : 10.5423/RPD.2003.9.1.018
Canker farmed on a pomegranate tree(Punica granatum) with yellowing leaves and death of some twigs was founded at a garden of Gyungbuk Agricultural Technology Administration. Botryosphaeria dothidea was isolated from the canker and pathogenisity of the isolate was confirmed by artificial inoculation to the pome-granate twig, which showed the same symptom with naturally infected twig. This is the first report of a natural infection of pomegranate tree by Botryosphaeria dothidea in Korea.
Gray Mold of Broad Bean (Vicia faba) Caused by Botrytis cinerea
Kwon, Jin-Hyeuk ; Park, Chang-Seuk ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 21~24
DOI : 10.5423/RPD.2003.9.1.021
In May of 2002, the gray mold disease occurred severely on broad bean (Vicia faba) grown in farmer`s fields located in Changseon-myon, Namhae-gun, Gyeongnam provice, Korea. The infected leaves, at first, discolored to gray or dark from the tip, and eventually died. Conidia of the fungus in mass were hyaline or gray, 1-celled, mostly ellipsoid or ovoid and sized 6~22
. Thick conidiophores were formed on PDA with 15~37
in width. The sclerotia were readily formed potato-dextrose agar and optimum temperature for sclerotial formation was 2
. Pathogenicity of the causal organism was proved according to Koch`s postulate. The causal organism was identified as Botrytis cinerea based on its mycological characteristics. This is tile first report on gray mold of broad bean (Vicia faba) caused by Botrytis cinerea in Korea.
Stem Rot of Pansy (Viola tricolor) Caused by Sclerotium rolfsii
Kwon, Jin-Hyeuk ; Park, Chang-Seuk ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 25~27
DOI : 10.5423/RPD.2003.9.1.025
In 2002, a stem rot disease was found on Pansy (Viola tricolor) in several road-side flower beds in Jinju City, Gyeongnam province, Korea. The typical symptoms of the disease were stem rot, crown rot, wilt or blight. Upper parts of the infected stems were mostly blighted. White mycelial mats were spread over lesions and the sclerotia were farmed on the stems near soil line. The sclerotia was globoid or irregular in shape, 1.3~4.2 mm in size, and brown in color, The optimum temperature for fungal growth was about 3
. The typical clamp connections were found in the hyphae of the fungus grown on PDA, and hyphal diameter was 3.9~10.4
. On the basis of mycological characteristics and pathogenecity test on host plants, the fungus was identified as Sclerotium rolfsii. This is the first report on the stem rot of Viola tricolor caused by Sclerotium rolfsii in Korea.
Sclerotinia Rot of Obedient plant (Physostegia virginiaqna) Caused by Sclerotinia sclerotiorum
Kwon, Jin-Hyeuk ; Park, Chang-Seuk ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 28~31
DOI : 10.5423/RPD.2003.9.1.028
A sclerotinia rot was occurred on the stems of Obedient plant (Physostegia virginiaqna) grown in the exhibition field of Gyeongsangnam-do Agricultural Research and Extension Services, Korea in 2002. The typical symptoms of the disease were that the infected leaves and stems, at first, became dark green, then watery and soft rotted, later, White fluffy mycelia formed on the lesion developed black sclerotia, later, Sclerotia formed on the plants and PDA medium were globose to cylindrical or irregular in shape and 1.0~10.3
1.0~8.4 mm in size. Aphothecia were cup-shape with numerous asci and 0.8~1.8 cm in diameter, Asci were cylindrical in shape and 84~286
in size. Ascospores were one cell hyaline, ellipsoid to ovoid in shape, and 7.6~12.8
in size. The optimum temperature far mycelial growth was
. This is the first report on the sclerotinia rot of Physostegia virginiaqna caused by Sclerotinia sclerotiorum in Korea.
First Report of Pink Rot of Potato (Solanum tuberosum) Caused by Phytophthora erythroseptica in Korea
Ryu, Kyoung-Yul ; Kim, Jeom-Soon ; Kim, Jong-Tae ; Hahm, Young-Il ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 32~35
DOI : 10.5423/RPD.2003.9.1.032
Pink rot of potato (Solanum tuberosum L.) occurred at Pyeongchang in Gangwon and at Bosung in Junnam province since 1999. The disease incidence in the surveyed areas was about 5% of harvested potatoes in 2002. Affected tubers showed a dull brown appearance and the lenticels and eyes on tubers turned dark brown. The cut surface of the diseased tuber colored faint pink and the entire surface of the diseased tuber becomes deep salmon pink within 30 min. The pathogen isolated from the diseased tubers was identified as Phytophthora erythroseptica based on morphological and cultural characteristics. Mycelial mat was fairly fluffy, rosette or stellate patterns and rounded or angular hyphal swellings were farmed in water, Temperature for mycelial growth was ranged from 5 to 3
and optimal temperature was
. Non-papillate sporangia were persistent on stalk and ellipsoid, ovoid, obpyriform or distorted in shape, often with a constriction distal in the middle. Size of sporangia was 41.3~69.6
26.8~47.4 (av, 55.5
. Sexuality of Phytophthora erythroseptica was homothallic. Oogonia were 30~46
in diameter and oospores were 28~35
in diameter, Elongated or cyclindrical antheridia were all amphigynous. This is the first report on potato pink rot caused by Phytophthora erythroseptica in Korea.
Stem Blight of Brunfelsia Caused by Fusarium oxysporum
Han, Kyoung-Suk ; Park, Jong-Han ; Lee, Jung-Sup ; Choi, Young-Moon ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 36~38
DOI : 10.5423/RPD.2003.9.1.036
Stem blight of brunfelsia (Brunfelsia calycina) caused by Fusarium oxysporum was found in greenhouse around Sungnam area, Kyunggi province, Korea in September 2001. The initial infection appeared as a slight wilting of the foliage, turned yellow from the lower leaves. The yellowing leaves were falled, resulting in blight of stem and eventual death of the entire plant. The vascular tissue of a diseased plants became dark brown and browning of the vascular system was a characteristic of the disease and the pith remained healthy, Isolates obtained from the lesions of the diseased plant were identified as F. oxysporum, based on the morphological characteristics of conidia. Symptom by artificial inoculation was same to the symptom of naturally infected plants. This is the first report demonstrating the stem blight on a brunfelsia caused by F. oxysporum in Korea, and we proposed to name this disease "stem blight of brunfelsia".
Screening of Disease Resistance of Chinese Cabbage Cultivars and Lines to Bacterial Soft Rot
Chung, Eun-Kyoung ; Zhang, Xuan-Zhe ; Choi, Bo-Ra ; Lee, Eun-Ju ; Yeoung, Young-Rog ; Kim, Byung-Sup ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 39~41
DOI : 10.5423/RPD.2003.9.1.039
Bacterial soft rot by Erwinia carotovora subsp. carotovora is one of the diseases causing the biggest damages in Chinese cabbage cultivation. This study was conducted to evaluate disease resistance of Chinese cabbage cultivars and breeding lines to E. carotovora subsp. carotovora by new inoculation method, mineral oil inoculation method, inoculating 10 ml of the mixture (4:1, v/v) of bacterial suspension and mineral oil on the central bases of Chinease cabbage seedling. Total 43 Chinese cabbage cultivars and lines obtained from 3 domestic seed companies and universities were screened for disease resistance using the above mentioned inoculation method. This screening test showed that Chinese cabbage C3-26, C3-28, C3-29 and C29-51-51-53 lines were resistant, Gangta, Gumchonyealgali, Mini, DB50, Jibu, Pyungchng, Sanchon and Yellow King No.2 cultivars were susceptible, and the others were moderate resistant.
Induction of Conidioma Formation of the White Root Rot Fungus in Axenic Culture under Near Ultraviolet Light Radiation
Lee, Jung-Sup ; Park, Jong-Han ; Han, Kyoung-Suk ; Choi, Young-Mun ; Matsumoto, Naoyuki ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 42~46
DOI : 10.5423/RPD.2003.9.1.042
Conidiomata of the Rosellinia necatrix were induced in axenic culture under near ultraviolet light radiation. Pieces of sterilized Japanese pear twigs were placed on the 7 days-old oatmeal agar culture in plates. The plates were further incubated far 5 days and then illuminated by under near ultraviolet light radiation. Syn-nemata were developed on twigs in 19 out of 20 isolates tested within 5 weeks, and conidia were observed in 12 out of the 19 isolates. The synnemata and conidia produced were morphologically identical to those of Dematophora necatrix.
Effect of Temperature on Sclerotia Formation and Viability of Sclerotinia sclerotiorum Causing Sclerotiorum Rot of Cryptotaenia japonica
Chang, Seog-Won ; Lee, Han-Bum ; Kim, Sung-Kee ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 47~51
DOI : 10.5423/RPD.2003.9.1.047
Sclerotinia rot of C. japonica caused by Sclerotinia sclerotiorum was observed throught the growing season in the vinylhouse at the Namyangiu, Yangju and Yangpyung areas. The disease was commonly occurred at late autumn after transplanting and continuously increased until spring in next year, The disease was especially severe at the Yangpyung area among three areas. Three isolates of S. sclerotiorum obtained from C. japonica in different geographic areas were evaluated for ability of sclerotia formation and viability under different temperature. Temperature for mycelial growth ranged from 5 to 3
, with optimum temperature at 15~3
. Sclerotia were fewer formed at low temperature, but their size was larger than that at high temperature. Small size of sclerotia was more viable than those of large size at high temperature. Based on the differences in viability of sclerotia, the relative ranks of sclerotia were in order ~2 mm > 3~4 mm > 5 mm~.
Effect of Rice Downy Mildew (Sclerophthora macrospora) on Rice Growth and Screening of Disease Resistance of Cultivars
Lee, Young-Hwan ; Cha, Kwang-Hong ; Ko, Sug-Ju ; Park, Ki-Beum ; Kim, Young-Cheol ;
Research in Plant Disease, volume 9, issue 1, 2003, Pages 52~56
DOI : 10.5423/RPD.2003.9.1.052
It was conducted to investigate the effect of rice downy mildew (RDM) infection to plant growth and yield components in water seeding stage, and to screen of varietal resistance to downy mildew. Being infected by rice downy mildew, chlorotic spot appeared in the leaf and leaf length was shortened. As the infected rice was growing, internode was not elongated properly and was deformed, and then panicle was not arised or mal-formed. Plant height of infected rice was shortened at all growth stage, and while the number of tillers of infected rice was more decreased than that of healthy plant before maximum tillering stage, and that of infected rice was more increased after heading stage. While the number of internode of infected tiller was much increased than that of healthy tiller internode length of infected tiller was shorter. As the rice infected by RDM severely, the number of panicles per square meter and ripening of rice was more decreased and yield of rice was extremely much decreased. As result of the varietal resistance screening with rice seedling, Geyh-wabyeo and Donjinbyeo were resistant varieties to downy mildew.