• Title/Summary/Keyword: Disease spots

Search Result 300, Processing Time 0.027 seconds

Diagnosis of Real Condition and Distribution of Protected Trees in Changwon-si, Korea (창원시 보호수의 분포현황과 실태진단)

  • You, Ju-Han;Park, Kyung-Hun;Lee, Young-Han
    • Journal of the Korean Institute of Traditional Landscape Architecture
    • /
    • v.29 no.1
    • /
    • pp.59-70
    • /
    • 2011
  • The purpose of this study is to present raw data to systematically and rationally manage the protected trees located in Changwon-si, Korea. This study investigated about the present condition and the information of location, individual, management, health and soil. The results are as follows. The protected trees were located in 26 spots, and species of trees were 9 taxa; Zelkova serrata, Celtis sinensis, Aphananthe aspera, Ginkgo biloba, Carpinus tschonoskii, Pinus densiflora for. multicaulis, Quercus variabilis, Pinus densiflora and Salix glandulosa. In protected tree types, shade trees were the most, and the majority of theirs were 200 years or more in age. The range of altitude was 14~173m, and the number of trees located in flat fields was the most. For location types, village and field and mountain were presented in the order and, in land use, land for building was the most. The range of height was 8.0~30.0m, 0.6~5.1m in crown height, 240~700cm in diameter of breast and 210~800cm in diameter of root. In case of crown area, Zelkova serrata of No.5 was most large. The status boards were mostly installed except No.23 and No.26. The sites with fence were 9 spots, and the site with stonework were 14 spots. The sites with the support beam were 5 spots, and most sites were not covered up with soil. The materials of bottom were soil, gravel and vegetation in the order. The range of withering branch rate was 0~40%, and peeled bark rate was 0~60%. The sites made holes were 23 spots, and the hole size of Aphananthe aspera of No.12 was the largest. The sites disturbed by human trampling were 7 spots, the sites by disease and insects of 2 spots, the sites by injury of 23 spots and the sites by exposed roots of 13 spots. In the results of soil analysis, there showed that acidity was pH 4.5~8.0, organic matter content of 3.5~69.8g/kg, electrical conductivity(EC) of 0.11~2.87dS/m, available $P_2O_5$ of 3.0~490.6mg/kg, exchangeable K of 0.10~1.05cmol+/kg, exchangeable Ca of 1.41~16.45cmol+/kg, exchangeable Mg of 0.37~1.96cmol+/kg, exchangeable Na of 0.25~2.41cmol+/kg and cation exchange capacity(C.E.C) of 8.35~26.55cmol+/kg.

Differential Expression of Kidney Proteins in Streptozotocin-induced Diabetic Rats in Response to Hypoglycemic Fungal Polysaccharides

  • Hwang, Hye-Jin;Baek, Yu-Mi;Kim, Sang-Woo;Kumar, G. Suresh;Cho, Eun-Jae;Oh, Jung-Young;Yun, Jong-Won
    • Journal of Microbiology and Biotechnology
    • /
    • v.17 no.12
    • /
    • pp.2005-2017
    • /
    • 2007
  • Diabetic nephropathy remains a major cause of morbidity and mortality in the diabetic population and is the leading cause of end-stage renal failure. Despite current therapeutics including intensified glycemic control and blood pressure lowering agents, renal disease continues to progress relentlessly in diabetic patients, albeit at a lower rate. Since synthetic drugs for diabetes are known to have side effects, fungal mushrooms as a natural product come into preventing the development of diabetes. Our previous report showed the hypoglycemic effect of extracellular fungal polysaccharides (EPS) in streptozotocin (STZ)-induced diabetic rats. In this study, we analyzed the differential expression patterns of rat kidney proteins from normal, STZ-induced diabetic, and EPS-treated diabetic rats, to discover diabetes-associated proteins in rat kidney. The results of proteomic analysis revealed that up to 500 protein spots were visualized, of which 291 spots were differentially expressed in the three experimental groups. Eventually, 51 spots were statistically significant and were identified by peptide mass fingerprinting. Among the differentially expressed renal proteins, 10 were increased and 16 were decreased significantly in diabetic rat kidney. The levels of different proteins, altered after diabetes induction, were returned to approximately those of the healthy rats by EPS treatment. A histopathological examination showed that EPS administration restored the impaired kidney to almost normal architecture. The study of protein expression in the normal and diabetic kidney tissues enabled us to find several diabetic nephropathy-specific proteins, such as phospholipids scramblase 3 and tropomyosin 3, which have not been mentioned yet in connection with diabetes.

Occurrence and Symptoms of Tomato spotted wilt virus on Egg Plant, Whole Radish and Sugar Loaf in Korea (채소(가지, 알타리무, 슈가로프)에 발생한 토마토반점위조바이러스 (Tomato spotted wilt virus) 발생과 병징 특성)

  • Cho, Jeom-Deog;Kim, Jin-Young;Kim, Jeong-Soo;Choi, Hong-Soo;Choi, Gug-Seoun
    • Research in Plant Disease
    • /
    • v.16 no.3
    • /
    • pp.232-237
    • /
    • 2010
  • Tomato spotted wilt virus (TSWV) was occurred on the three vegetables of egg plant (Solanum melongena), whole radish (Raphanus acanthiformis) and sugar loaf (Cichorium intybus) at Anyang area infested with TSWV. Whole radish was produced the symptoms of necrotic spots on the leaves, and necrosis and malformation on the roots by TSWV. Egg plant was induced the symptoms of typical multiple ring spots on the leaves and necrotic rings on the fruits. Sugar loaf was infected severely with the typical symptoms of ring spots on the leaves and stunt. The three isolates of TSWV could infect locally on the indicator plants of Chenopodium amaranticolor, C. quinoa and Nicotiana debney, and systemically on N. glutinosa, N. benthamiana and Datura stramonium. Two TSWV isolates from egg plant and sugar loaf were very similar in virulence. However, the virulence of TSWV from whole radish was very different as local infection on 5 Nicotiana species including N. tabacum 'Xanthi NC'.

Spatial Analysis of Breast Cancer Incidence in Iran

  • Mahdavifar, Neda;Pakzad, Reza;Ghoncheh, Mahshid;Pakzad, Iraj;Moudi, Asieh;Salehiniya, Hamid
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.17 no.sup3
    • /
    • pp.59-64
    • /
    • 2016
  • Breast cancer (BC) is the most common cancer in females (27% of the total) and the main cause of death (16%) due to cancer in women in developed and developing countries. Variations in its incidence rate among geographical areas are due to various contributing factors. Since there have been a lack of studies on this topic in our country, the present spatial analysis of breast cancer incidence in Iran in 2009 was conducted using data from the national cancer registry system. The reported incidences of the disease were standardized according to the World Health Organization population and the direct method. Then data was inserted into the GIS software and finally, using the Hot Spot Analysis (Geties-Ord Gi), high-risk areas were drawn. Provinces with incidences 1.96 SD higher or lower than the national average were considered as hot spots or cold spots, at the significance level of 0.05%. In 2009, a total of 7,582 cases of BC occurred in Iran. The annual incidence was 33.2 per hundred thousand people. Our study showed that the highest incidence of BC in women occurred in the central provinces of the country, Tehran, Isfahan, Yazd, Markazi and Fars. The results of hot spots analysis showed that the distribution of high-risk BC was focused in central parts of Iran, especially Isfahan province (p <0.01). The other provinces were not significantly different from the national average. The higher incidence in central provinces may be due to greater exposure to carcinogens in urban areas, a Western lifestyle and high prevalence of other risk factors. Further epidemiological studies about the etiology and early detection of BC are essential.

Botrytis Blight of Lilium spp. caused by Botrytis elliptica(Berk.) Cooke in Korea (Botrytis elliptica(Berk.) Cooke에 의(依)한 한국(韓國) 미기록(未記錄) 백합(百合)잎마름병(病))

  • Yu, Seung Hun;Kim, Hong Gi;Park, Jong Seong
    • Korean Journal of Agricultural Science
    • /
    • v.15 no.1
    • /
    • pp.23-26
    • /
    • 1988
  • A severe blight disease of lily (Lilium spp.) caused by Botrytis elliptica was found in a vinyl house in Taejon for the first time in 1987. Initial symptom of the disease was brown spotting on leaves and stems of the plants. The spots gradually increased in size and coalesced to form bigger spots and blights on the leaves. Plants with severe damage became brown and sometimes died. In the inoculation experiments, the fungus was found to be pathogenic only to lily, but not to pepper, tomato, ginseng, onion and welth onion.

  • PDF

Occurrence of Apple scar viroid-Korean strain (ASSVd-K) in Apples Cultivated in Korea

  • Lee, Ju-Hee;Park, Jean-Kyung;Lee, Dong-Hyuk;Uhm, Jae-Youl;Ghim, Sa-Youl;Lee, Jai-Youl
    • The Plant Pathology Journal
    • /
    • v.17 no.5
    • /
    • pp.300-304
    • /
    • 2001
  • Apple is the most economically important fruit in Korea. The suspected viroid disease of dapple apple was found in apple fruits cultivated in Kyungpook province. Symptoms begin in mid-July as small circular spots, which stand out against the background color on the young fruit. Dappling of the fruit becomes more intense and easier to detect as the fruit approaches maturity; the affected spots remain yellowish as the fruit matures. no leaf or bark syndromes have been associated with this disease. The infected fruits are downgraded considerably during quality grading. The low molecular weight RNA containing viroid RNA molecules were extracted from the peels of the apples with dapple symptoms. The RNA molecules were extracted from the apples using Qiagen column chromatography. The purified RNAs were used for the synthesis of cDNA with RT-PCR. The PCR products were then ligated into a pGEM-T Easy vector, cloned and sequenced. The sequence of the viroid RNA molecule shows 331 nucleotides with one base difference ("G" insertion between the position of 133 and 134) compared with that of the Apple scar skin viroid (ASSVd) reported by Hashimoto and Koganezawa in Japan. This is the first report on the occurrence of the ASSVd in apple trees cultivated in Korea, as well as the identification of a new Korean strain of the ASSVd.the ASSVd.

  • PDF

Rust of Veratrum patulum Caused by Uromyces veratri (Uromyces veratri에 의한 박새녹병)

  • Kim, Seong-Hwan;Lee, Tae-Soo
    • The Korean Journal of Mycology
    • /
    • v.33 no.2
    • /
    • pp.95-97
    • /
    • 2005
  • A rust disease occurred on Veratrum patulum in Deogyusan National Park, Jeollabukdo. The typical symptoms of the disease appeared as small, yellowish spots on leaves at first. The spots then turned brown, their edges rised slightly, and powdery mass of yellow or yellowish brown spores appeared on the lesions. Severely infected leaves blighted and eventually defoliated. Urediniospores were yellowish brown in color, globose, subglobose or ellipsoid in shape and $19{\sim}27\;{\times}\;17{\sim}24\;{\mu}m$ in size. Teliospores were brown in color, ellipsoid, ovate or oblong in shape and $19{\sim}36\;{\times}\;15{\sim}21\;{\mu}m$ in size, the apex mostly rounded, with hyaline or subhyaline conical papilla, the base rounded or attenuated, smooth. Pedicels hyaline or subhyaline, up to $38\;{\mu}m$ long. The causal fungus was identified as Uromyces veratri Schroeter based on mycological characteristics and host specificity.

Incidence of Bacterial Brown Spot of Phalenopsis Orchids Caused by Acidovorax avenae subsp. cattleyae (Acidovorax avenae subsp. cattleyae에 의한 팔레놉시스 세균성갈색점무늬병의 발생)

  • Han, Kyung-Sook;Lee, Seung-Don;Park, Jong-Han;Han, You-Kyoung;Kim, Dae-Hyun;Lee, Jung-Sup
    • Research in Plant Disease
    • /
    • v.15 no.3
    • /
    • pp.183-186
    • /
    • 2009
  • Leaf spot symptoms were observed in a commercial Palenopsis cultivated fields. Circular-elliptical watersoaked spots surrounded by a light green or yellow halo and turned to black when it was severe infection or blacken with gathered symptoms. These spots were finally enlarged to form of larger areas. Under the favorable conditions of temperature and moisture, the infection extended rapidly and dispersed to the crown and sometimes the infected plant became dead. A bacterial organism, isolated from the advancing margins of the lesions, was tested to characterize causing bacterium based on pathogenicity. The biochemical and physiological tests of that bacterium identified that as an Acidovorax avenae subsp. cattleyae. Therefore, we suggested to call that the new Phalaenopsis disease was bacterial brown spot caused by A.avenae subsp. cattleyae in Korea.

Identification and Characterization of Alternaria iridiaustralis Causing Leaf Spot on Iris ensata in China

  • Luo, Huan;Tao, Ya Qun;Fan, Xiao Yan;Oh, Sang Keun;Lu, Hong Xue;Deng, Jian Xin
    • Mycobiology
    • /
    • v.46 no.2
    • /
    • pp.168-171
    • /
    • 2018
  • In 2016, a severe leaf spot disease was found on Iris ensata Thumb. in Nanjing, China. The symptom was elliptical, fusiform, or irregularly necrotic lesion surrounded by a yellow halo, from which a small-spored Alternaria species was isolated. The fungus was identified as Alternaria iridiaustralis based on morphological characteristics. The pathogenicity tests revealed that the fungus was the causal pathogen of the disease. Phylogenic analyses using sequences of ITS, gpd, endoPG, and RPB2 genes confirmed the morphological identification. This study is the first report of A. iridiaustralis causing leaf spots on I. ensata in China.

Treatment of Extensive Neurofibromatosis on the Head and Neck (두경부에 발생한 광범위한 신경 섬유종증의 시험례)

  • Lee Shin-Kyu;Choi Hee-Youn
    • Korean Journal of Head & Neck Oncology
    • /
    • v.9 no.1
    • /
    • pp.49-55
    • /
    • 1993
  • Neurofibromatosis is an autosomal deminant neurocutaneous systemic disease characterized by multiple Cafe-au-lait spots. generalized cutaneous neurofibromatosis. central nervous system tumors. skeletal defects and a myriad of somatic and endocrinologic abnormalities. It occurs in about 1:3000 live births and both sexes are equally affected. From 1989 to 1992, 21 patients who admitted to our department were evaluated in clinical aspects. Then we conclude as follows: 1) The onset was usually before 10 years of age. and the incidence between the sexes was approximately the same. 2) The familial tendency was approximately 48%. 3) The head and neck were the usual sites of the disease. 4) Bone changes occurred in about 24%. 5) Most of the tumor could be removed through early diagnosis to prevent recurrence. bone changes and malignant changes. And at the same time, trough reconstructive surgery, results both functionally as well as aesthetically satisfactory could be achieved.

  • PDF