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Acute Pulmonary Responses in Vivo to Silica Complexed with H+, Zn2+, or Fe3+
JiheeLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 8 183-189 (7 pages)
This investigation is to determine whether the surface complexation of iron influence acute pulmonary responses induced by silica. For this study, three varieties of cation complexed silica were used: silica-H, -Zn2, and -Fe3, since the first two are not active in the transport of electrons and generate little free radicals relative to the dust with the surface iron. Rats (270 to 280 g) were intratracheally (IT) instilled with saline, silica-H, -Zn2, or... -
Effects of In Vitro Exposure to Silica on Bioactive Mediator Release by Alveolar Macrophages
Lee, Ji-Hee 대한생리학회 대한생리학회지 12 Pages
대한생리학회 대한생리학회지 1995, 제 29권 제 1호 1 1-12 (12 pages)
Alveolar macrophages play a pivotal role in the pathogenesis of silicosis since the macrophages may release a wide variety of toxic and inflammatory mediators as well as mitogenic growth factors. In the present study, the effects of in vitro exposure to silica on release of various mediator such as reactive oxygen species, platelet activating factor(PAF), and interleukin-1 (IL-1) by alveolar macrophages were examined. First, hydrogen peroxide release from alveolar macrophages was monitored by... -
Comparative Analyses of Four Complete Genomes in Pseudomonas amygdali Revealed Differential Adaptation to Hostile Environments and Secretion Systems
Hyejung Jung, Hong-Seop Kim, Gil Han, Jungwook Park, Young-Su Seo 한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 9 167-174 (8 pages)
Pseudomonas amygdali is a hemibiotrophic phytopathogen that causes disease in woody and herbaceous plants. Complete genomes of four P. amygdali pathovars were comparatively analyzed to decipher the impact of genomic diversity on host colonization. The pan-genome indicated that 3,928 core genes are conserved among pathovars, while 504-1,009 are unique to specific pathovars. The unique genome contained many mobile elements and exhibited a functional distribution different from the core genome.... -
Pathogenicity of Bacillus Strains to Cotton Seedlings and Their Effects on Some Biochemical Components of the Infected Seedlings
Aly A. Aly, Omima M. El-Mahdy, Marian M. Habeb, Abeer Elhakem, Amal A. Asran, Maryan M. Youssef, Heba I. Mohamed, Rania S. Hanafy 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 3 91-101 (11 pages)
Pathogenicity of eight Bacillus strains to seedlings of four cotton cultivars was evaluated under greenhouse conditions. Each of the tested cultivars was individually treated with powdered inoculum of each bacterial strain. Untreated seeds were planted as control treatments in autoclaved soil. Effects of the tested strains on levels and activities of some biochemical components of the infected seedlings were also assayed. The biochemical components included total soluble sugars, total soluble... -
Characterization of Virulence Function of Pseudomonas cichorii Avirulence Protein E1 (AvrE1) during Host Plant Infection
Duyen Do Tran Huong, Nagendran Rajalingam, Yong Hoon Lee 한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 5호 9 494-501 (8 pages)
Pseudomonas cichorii secretes effectors that suppress defense mechanisms in host plants. However, the function of these effectors, including avirulence protein E1 (AvrE1), in the pathogenicity of P. cichorii, remains unexplored. In this study, to investigate the function of avrE1 in P. cichorii JBC1 (PcJBC1), we created an avrE1-deficient mutant (JBC1ΔavrE1) using CRISPR/ Cas9. The disease severity caused by JBC1ΔavrE1 in tomato plants significantly decreased by reducing water soaking during... -
Comparative Pathogenicity and Host Ranges of Magnaporthe oryzae and Related Species
Hyunjung Chung, Jaeduk Goh, Seong-Sook Han, Jae-Hwan Roh, Yangseon Kim, Sunggi Heu, Hyeong-Kwon Shim, Da Gyeong Jeong, In Jeong Kang, Jung-Wook Yang 한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 4호 1 305-313 (9 pages)
Host shifting and host expansion of fungal plant pathogens increases the rate of emergence of new pathogens and the incidence of disease in various crops, which threaten global food security. Magnaporthe species cause serious disease in rice, namely rice blast disease, as well as in many alternative hosts, including wheat, barley, and millet. A severe outbreak of wheat blast due to Magnaporthe oryzae occurred recently in Bangladesh, after the fungus was introduced from South America, causing... -
Characterization of Type VI Secretion System in Xanthomonas oryzae pv. oryzae and Its Role in Virulence to Rice
Yeounju Choi, Namgyu Kim, Mohamed Mannaa, Hongsup Kim, Jungwook Park, Hyejung Jung, Gil Han, Hyun-Hee Lee, Young-Su Seo 한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 9 289-296 (8 pages)
is a contact-dependent secretion system, employed by most gram-negative bacteria for translocating effector proteins to target cells. The present study was conducted to investigate T6SS in Xanthomonas oryzae pv. oryzae (Xoo), which causes bacterial blight in rice, and to unveil its functions. Two T6SS clusters were found in the genome of Xoo PXO99A. The deletion mutants, Δhcp1, Δhcp2, and Δhcp12, targeting the hcp gene in each cluster, and a double-deletion mutant targeting both genes were... -
Ralstonia solanacearum Type III Effectors with Predicted Nuclear Localization Signal Localize to Various Cell Compartments and Modulate Immune Responses in Nicotiana spp.
Hyelim Jeon, Wanhui Kim, Boyoung Kim, Sookyeong Lee, Jay Jayaraman, Gayoung Jung, Sera Choi, Kee Hoon Sohn, C?cile Segonzac 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 1호 4 43-53 (11 pages)
Ralstonia solanacearum (Rso) is a causal agent of bacterial wilt in Solanaceae crops worldwide including Republic of Korea. Rso virulence predominantly relies on type III secreted effectors (T3Es). However, only a handful of Rso T3Es have been characterized. In this study, we investigated subcellular localization of and manipulation of plant immunity by 8 Rso T3Es predicted to harbor a nuclear localization signal (NLS). While 2 of these T3Es elicited cell death in both Nicotiana benthamiana and... -
Identification and Expression Analysis of Genes Induced in Response to Tomato chlorosis virus Infection in Tomato
Mehtap ?ahin-?evik, Emine Dogu? Sivri, Bayram ?evik 한국식물병리학회 The Plant Pathology Journal 17 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 3호 7 257-273 (17 pages)
Tomato (Solanum lycopersicum) is one of the most widely grown and economically important vegetable crops in the world. Tomato chlorosis virus (ToCV) is one of the recently emerged viruses of tomato distributed worldwide. ToCV-tomato interaction was investigated at the molecular level for determining changes in the expression of tomato genes in response to ToCV infection in this study. A cDNA library enriched with genes induced in response to ToCV infection were constructed and 240 cDNAs were... -
Visualization of Phytophthora palmivora Infection in Oil Palm Leaflets with Fluorescent Proteins and Cell Viability Markers
Juan C. Ochoa, Mariana Herrera, M?nica Navia, Hern?n Mauricio Romero 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 1호 3 19-31 (13 pages)
Bud rot (BR) is the most devastating disease affecting oil palm (Elaeis guineensis) crops in Colombia. Its causal agent, Phytophthora palmivora, initiates the infection in immature oil palm leaflets producing necrotic lesions, followed by colonization of opportunistic necrotrophs, which increases disease damage. To improve the characterization of the disease, we transformed P. palmivora using Agrobacterium tumefaciens-mediated transformation (ATMT) to include the fluorescent proteins CFPSKL...
