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Characterization of a Chitinase Gene Exhibiting Antifungal Activity from a Biocontrol Bacterium Bacillus licheniformis N1
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2009, 25권 4호 6 344-351 (8 pages)
These results indicated that even though the chitinase gene is not expressed in the N1 strain, the coding region is functional and encodes an active chitinase enzyme. Furthermore, B. subtilis 168 transformants expressing the chitinase gene exhibited antifungal activity against Fulvia fulva by suppressing spore germination. Our results suggest that the proper engineering of the expression of the indigenous chitinase gene, which will lead to its expression in the biocontrol strain B. licheniformis... -
The Biocontrol Activity of Chromobacterium sp. Strain C-61 against Rhizoctonia solani Depends on the Productive Ability of Chitinase
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2005, 21권 3호 12 275-282 (8 pages)
causal agent of damping-off of eggplant. In this study, the biocontrol activity and enzymatic characteristics of strain C-61 were compared with its four Tn5 insertion mutants (C61-A, -B, -C, and -D) that had lower chitinolytic ability. The chitinase activity of a 2-day old culture was about 76%, 49% and 6% level in C61-A, C61-B and in C61-C, respectively, compared with that of strain C-61. The β-N-acetylhexosaminidase (Nahase) activity was little detected in strain C-61 but increased largely in... -
Molecular Screening of Streptomyces Isolates for Antifungal Activity and Family 19 Chitinase Enzymes
Gherbawy. Youssuf, Elhariry. Hesham, Altalhi. Abdulla, El-Deeb. Bahig, Khiralla. Ghada 한국미생물학회 The journal of microbiology 10 Pages
한국미생물학회 The journal of microbiology 2012, Vol.50 No.3 459-468 (10 pages)
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Analysis of the Involvement of Chitin-Binding Domain of ChiCW in Antifungal Activity, and Engineering a Novel Chimeric Chitinase with High Enzyme and Antifungal Activities
Huang. Chien-Jui, Guo. Shu-Huei, Chung. Shu-Chun, Lin. Yu-Ju, Chen. Chao-Ying 한국미생물생명공학회 Journal of microbiology and biotechnology 7 Pages
한국미생물생명공학회 Journal of microbiology and biotechnology 2009, Vol.19 No.10 1169-1175 (7 pages)
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Effect of Introducing Chitinase Gene on the Resistance of Tuber Mustard against White Mold
Seyedmohammadreza Ojaghian, Ling Wang, Guan-Lin Xie 한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 4호 8 378-383 (6 pages)
lines TMB4, TMB7, TMB12, and TMB18, respectively. Enzymatic tests showed a significant increase in the activity of endochitinase in protein isolated from leaf tissues of chit42 transgenic 75-day tuber mustard lines. The pathogenicity of three pathogen isolates was tested on the leaves of transformed plans. The results of current study showed that expression of the gene chit42 in tuber mustard plants markedly reduced infection radius on the leaves 7 days after inoculation with the fungus. -
Genomic Insights into Nematicidal Activity of a Bacterial Endophyte, Raoultella ornithinolytica MG against Pine Wilt Nematode
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 3호 11 250-255 (6 pages)
xylophilus. Our analysis of R. ornithinolytica MG genome showed that it possesses many genes encoding potential nematicidal factors in addition to some secondary metabolite biosynthetic gene clusters that may contribute to the observed nematicidal activity of the strain. Furthermore, the genome was lacking key components of avermectin gene cluster, suggesting that nematicidal activity of the bacterium is not likely due to the famous anthelmintic agent of wide-spread use, avermectin. This genomic... -
Purification and Characterization of a Major Extracellular Chitinase from a Biocontrol Bacterium, Paenibacillus elgii HOA73
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 3호 10 318-328 (11 pages)
Chitinase-producing Paenibacillus elgii strain HOA73 has been used to control plant diseases. However, the antimicrobial activity of its extracellular chitinase has not been fully elucidated. The major extracellular chitinase gene (PeChi68) from strain HOA73 was cloned and expressed in Escherichia coli in this study. This gene had an open reading frame of 2,028 bp, encoding a protein of 675 amino acid residues containing a secretion signal peptide, a chitin-binding domain, two fibronectin type... -
Expression of Rice Chitinase Gene in Genetically Engineered Tomato Confers Enhanced Resistance to Fusarium Wilt and Early Blight
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 3호 6 252-258 (7 pages)
lines of tomato harboring rice chitinase (RCG3) gene for resistance to two important fungal pathogens Fusarium oxysporum f. sp. lycopersici (Fol) causing fusarium wilt and Alternaria solani causing early blight (EB). In this study, three transgenic lines TL1, TL2 and TL3 of tomato Solanum lycopersicum Mill. cv. Riogrande genetically engineered with rice chitinase (RCG 3) gene and their R1 progeny was tested for resistance to Fol by root dip method and A. solani by detached leaf assay. All the R0... -
Insight Into Genes Involved in the Production of Extracellular Chitinase in a Biocontrol Bacterium Lysobacter enzymogenes C-3
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2012, 28권 4호 13 439-445 (7 pages)
The chitinase producing Lysobacter enzymogenes C-3 has previously been shown to suppress plant pathogens in vitro and in the field, but little is known of the regulation of chitinase production, or its role in antimicrobial activity and biocontrol. In this study, we isolated and characterized chitinase-defective mutants by screening the transposon mutants of L. enzymogenes C-3. These mutations disrupted genes involved in diverse functions: glucose-galactose transpoter (gluP), disulfide bond... -
Research Articles : Purification and Structural Analysis of Surfactin Produced by Endophytic Bacillus subtilis EBS05 and its Antagonistic Activity Against Rhizoctonia cerealis
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 4호 6 342-348 (7 pages)
th of strain EBS05 can more effectively control WSED than can fludioxonil. The fermentation broth and bacteria-free filter ability to suppress WSED was not significantly different, suggesting that an active secreted substance played a major role in controlling WSED. Separation and purification of the active compounds was carried out by serial processes, including hydrochloric acid (pH 2.0) treatment, methanol extraction and Sephadex LH-20 column chromatography, silica gel column chromatography... -
Production of Surfactin and Iturin by Bacillus licheniformis N1 Responsible for Plant Disease Control Activity
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 2호 10 170-177 (8 pages)
activity. Two N1E based formulations, bacterial cell based formulation PN1E and culture supernatant based formulation SN1E, were evaluated for disease control activity against gray mold disease of tomato and strawberry plants. Neither PN1E nor SN1E was as effective as the original formulation N1E. Fractionation of antifungal compounds from the bacterial culture supernatant of B. licheniformis N1 indicated that two different cyclic lipopeptides were responsible for the antimicrobial activity of... -
Effect of Acibenzolar-S-methyl and Rahnella aquatilis (Ra39) on Chitinase and β-1, 3-glucanase Activities and Disease Resistance of Apple Plants
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 1호 9 63-69 (7 pages)
In physiological studies, enhanced activities of PR-proteins (chitinase and β-1, 3-glucanase) were detected, which are well known as biochemical markers for systemic acquired resistance. Application of ASM to apple shoots caused the highest chitinase activity followed by strain Ra39. The enzyme activity was increased after 2, 4 and 6 days from application. In addition, ASM-treatment caused the higher β-1, 3-glucanase activity than strain Ra39. Maximum enzyme activity was recorded after 6 days... -
Trichoderma harzianum SJG-99721의 체외 분비 chitinase 생산에 미치는 생물 반응기에서의 반응 최적화 연구
한국환경생물학회 환경생물 2004, Vol.22 No.1 167-170 (4 pages)
실험만으로 최적의 온도 혹은 pH 및 폭기율과 교반양을 구할 수 있었다. 그 결과 온도 $32^{circ}C$, pH4.9, 폭기율 3.22 ι, 교반율 225 rpm에서 chitinase의 최대 생산량 16.825 U를 나타내었다. 이는 온도 $25^{circ}C$, pH 5, 폭기율 1l, 교반율 150 rpm에서 나타난 chitinase 생산량 4.221 U에 비교하면 3.99배 증가한 효과를 나타내고 있다. 이로서 self-directing optimization방법을 통한 최적화 기술이 효소 생산 기술에 있어 그 최적화 과정을 단축시키고 최종 과정에 도달하는 새로운 기술로 적용할 수 있음을 알 수 있었다. -
부추첨가 김치의 발효과정 중 chitinase 활성과 조직감
김유경, 이귀주 한국식품조리과학회 한국조리과학회지 6 Pages
한국식품조리과학회 한국조리과학회지 1999, Vol.15 No.2 102-107 (6 pages)
숙성이 진행됨에 따라 점차적으로 감소한 반면, 김치조직에서의 chitinase 활성은 숙성 3일 또는 5일까지 증가한 후 감소하였다. 그러나 김치조직과 김치액 모두에서 대조구보다 부추첨가구가 더 높은 chitinase 활성을 나타내었으며 부추첨가구에서는 부추첨가량이 증가할수록 높은 chitinase 활성을 보였다. 숙성이 진행됨에 따라 모든 시료구에서는 김치조직의 침투관통력은 감소하였으며 부추첨가량에 따른 차이는 미미하였으나 대조구가 숙성 전 기간동안 가장 낮은 침투관통력을 보였다. 이상의 결과를 종합해보면 부추첨가는... -
황토로부터 분리한 Bacillus licheniformis의 항진균 chitinase 생산과 효소 특성
한귀환, 봉기문, 김종민, 김평일, 김시욱, Han. Gui Hwan, Bong. Ki Moon, Kim. Jong Min, Kim. Pyoung Il, Kim. Si Wouk 한국생물공학회 KSBB Journal 8 Pages
한국생물공학회 KSBB Journal 2014, Vol.29 No.3 131-138 (8 pages)
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Antifungal Activity of Extracellular Hydrolases Produced by Autolysing Aspergillus nidulans Cultures
Szilagyi. Melinda, Anton. Fruzsina, Forgacs. Katalin, Yu. Jae-Hyuk, Pocsi. Istvan, Emri. Tamas 한국미생물학회 The journal of microbiology 6 Pages
한국미생물학회 The journal of microbiology 2012, Vol.50 No.5 849-854 (6 pages)
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Serratia marcescens Chitinase 유전자의 대장균에로의 클로닝
장규일, 김기석, 조무제, 이상열, 신용철 한국미생물생명공학회 산업미생물학회지 7 Pages
한국미생물생명공학회 산업미생물학회지 1992, Vol.20 No.2 129-135 (7 pages)
본 연구에서는 Serratia marcescens ATCC 27117 균주로부터 키나아제 유전자를 대장균으로 클로닝 하고 발현시켰다. pUC 19 플라스미드를 이용하여 S.marcescens의 genomic library를 만들고 팽화된 키틴이 포함된 한천배지에서 키티나아제 활성을 가지는 클론을 선별하였다. 약 1x10 transformant들 중에서 키티나아제 활성을 보이는 하나의 클론을 선발하였으며 이것은 pUC 19 플라스미드속에 8.9Kb 염색체 DNA 삽입단편을 가지고 있었다. -
Improving the Chitinolytic Activity of Bacillus pumilus SG2 by Random Mutagenesis
Vahed. Majid, Motalebi. Ebrahim, Rigi. Garshasb, Noghabi. Kambiz Akbari, Soudi. Mohammad Reza, Sadeghi. Mehdi, Ahmadian. Gholamreza 한국미생물생명공학회 Journal of microbiology and biotechnology 10 Pages
한국미생물생명공학회 Journal of microbiology and biotechnology 2013, Vol.23 No.11 1519-1528 (10 pages)
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Biocontrol of Anthracnose in Pepper Using Chitinase, ${eta}$-1,3 Glucanase, and 2-Furancarboxaldehyde Produced by Streptomyces cavourensis SY224
Lee. So Youn, Tindwa. Hamisi, Lee. Yong Seong, Naing. Kyaw Wai, Hong. Seong Hyun, Nam. Yi, Kim. Kil Yong 한국미생물생명공학회 Journal of microbiology and biotechnology 8 Pages
한국미생물생명공학회 Journal of microbiology and biotechnology 2012, Vol.22 No.10 1359-1366 (8 pages)
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형광기-기질 결합체를 이용해 폴리아크릴아미드겔 위에서 Chitinase 활성의 검정
김영식, 이경복, Kim. Yeong-Shik, Lee. Kyung-Bok, Linhardt. Robert J. 생화학분자생물학회 한국생화학회지 6 Pages
생화학분자생물학회 한국생화학회지 1991, Vol.24 No.5 466-471 (6 pages)
나일론 막으로 전기적 전이에 의해서 정제되어졌다. 나일론 막에 결합된 당은 염에 의해서 막을 씻어 회수하였다. N-Acetylchitohexaose-형광기 결합체와 형광기가 결합되어 있지 않은 N-acetylchitohexaose를 Serratia marcescense, Streptomyces griseus, 식용의 파(Allium fistulosum L.)로부터 얻어진 세 종류의 chitinase와 반응시켰다. 형광기 결합체와의 반응물을 분석용 전기영동에 걸었을 때 자외선 장파장에서 띠가 인식될 수 있었다. 이와 같은 전기영동 방법에 의한 반응생성물의 분석을 통해서 서로 다른 종류의 chitinase의... -
Identification of an Antifungal Chitinase from a Potential Biocontrol Agent, Bacillus cereus 28-9
Huang. Chien-Jui, Wang. Tang-Kai, Chung. Shu-Chun, Chen. Chao-Ying 생화학분자생물학회 Journal of biochemistry and molecular biology 7 Pages
생화학분자생물학회 Journal of biochemistry and molecular biology 2005, Vol.38 No.1 82-88 (7 pages)
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Biochemical Properties of a Chitin-Binding Class III Chitinase in Pumpkin Leaves
Lee. Kyun-Oh, Kim. Min-Gab, Jang. Ho-Hee, Lee. Ji-Yeun, Kim. Sun-Chang, Lee. Sang-Yeol 생화학분자생물학회 Journal of biochemistry and molecular biology 6 Pages
생화학분자생물학회 Journal of biochemistry and molecular biology 1999, Vol.32 No.6 541-546 (6 pages)
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Effect of Chitinase-Producing Paenibacillus illinoisensis KJA-424 on Egg Hatching of Root-Knot Nematode (Meloidogyne incognita)
Jung. Woo-Jin, Jung. Soon-Ju, An. Kyu-Nam, Jin. Yu-Lan, Park. Ro-Dong-, Kim. Kil-Yong, Shon. Bo-Kyoon, Kim. Tae-Hwan 한국미생물생명공학회 Journal of microbiology and biotechnology 7 Pages
한국미생물생명공학회 Journal of microbiology and biotechnology 2002, Vol.12 No.6 865-871 (7 pages)
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Time-dependent proteomic and genomic alterations in Toll-like receptor-4-activated human chondrocytes: increased expression of lamin A/C and annexins
SeungHeeHa, HyoungKyuKim, NguyenThiTuyetAnh, NariKim, KyungSooKo, ByoungDooRhee, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 16 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.5 8 531-546 (16 pages)
Activation of Toll-like receptor-4 (TLR-4) in articular chondrocytes increases the catabolic compartment and leads to matrix degradation during the development of osteoarthritis. In this study, we determined the proteomic and genomic alterations in human chondrocytes during lipopolysaccharide (LPS)-induced inflammation to elucidate the underlying mechanisms and consequences of TLR-4 activation. Human chondrocytes were cultured with LPS for 12, 24,and 36 h to induce TLR-4 activation. The... -
Bacterial PAMPs and Allergens Trigger Increase in [Ca2+]i-induced Cytokine Expression in Human PDL Fibroblasts
Ga-YeonSon, DongMinShin, JeongHeeHong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.3 15 291-297 (7 pages)
An oral environment is constantly exposed to environmental factors and microorganisms. The periodontal ligament (PDL) fibroblasts within this environment are subject to bacterial infection and allergic reaction. However, how these condition affect PDL fibroblasts has yet to be elucidated. PDL fibroblasts were isolated from healthy donors. We examined using reverse transcription-polymerase chain reaction and measuring the intracellular Ca2+ concentration ([Ca2+]i). This study investigated the... -
Antifungal and Anticancer Activities of a Protein from the Mushroom Cordyceps militaris
ByungTaePark, KwangHeumNa, EuiChaJung, JaeWanPark, HaHyungKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.1 8 49-54 (6 pages)
using anion-exchange chromatography on a DEAE-Sepharose column. Electrophoretic analyses indicated that this protein, designated C. militaris protein (CMP), has a molecular mass of 12 kDa and a pI of 5.1. The optimum conditions for protease activity were a temperature of 37oC and pH of 7.0∼9.0. The enzyme activity was specifically inhibited by the serine protease inhibitor phenylmethylsulfonyl fluoride. Amino acid composition of intact CMP and amino acid sequences of three major peptides from a... -
Identification, Characterization, and Efficacy Evaluation of Bacillus velezensis for Shot-Hole Disease Biocontrol in Flowering Cherry
Viet-Cuong Han, Nan Hee Yu, Hyeokjun Yoon, Neung-Ho Ahn, Youn Kyoung Son, Byoung-Hee Lee, Jin-Cheol Kim 한국식물병리학회 The Plant Pathology Journal 16 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 5 115-130 (16 pages)
Though information exists regarding the pathogenesis of the shot-hole disease (SH) in flowering cherry (FC), there has been a lack of research focusing on SH management. Therefore, here, we investigated the inhibitory activities of antagonistic bacteria against SH pathogens both in vitro and in vivo as well as their biochemical characteristics and bioactive compounds. Two biosurfactant- producing bacterial antagonists, identified as Bacillus velezensis strains JCK-1618 and JCK-1696, exhibited... -
Genome Wide Analysis of the Potato Soft Rot Pathogen Pectobacterium carotovorum Strain ICMP 5702 to Predict Novel Insights into Its Genetic Features
Tista Mallick, Rukmini Mishra, Sasmita Mohanty, Raj Kumar Joshi 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 4 102-114 (13 pages)
Pectobacterium carotovorum subsp. carotovorum (Pcc) is a gram-negative, broad host range bacterial pathogen which causes soft rot disease in potatoes as well as other vegetables worldwide. While Pectobacterium infection relies on the production of major cell wall degrading enzymes, other virulence factors and the mechanism of genetic adaptation of this pathogen is not yet clear. In the present study, we have performed an in-depth genome-wide characterization of Pcc strain ICMP5702 isolated from... -
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... -
Inhibitory Effect of Chitosan and Phosphate Cross-linked Chitosan against Cucumber Mosaic Virus and Pepper Mild Mottle Virus
Venkata Subba Reddy Gangireddygari, Bong Nam Chung, In-Sook Cho, Ju-Yeon Yoon 한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 12 632-640 (9 pages)
of both agriculture and horticulture crops in Korea. The previous surveys showed that naturally available biopolymer material – chitosan (CS), which is from shrimp cells, reduced CMV accumulation on pepper. To improve the antiviral activity of CS, it was synthesized to form phosphate cross-linked chitosan (PCS) and compared with the original CS. Initially, the activity of CS and PCS (0.01%, 0.05%, and 0.1% con- centration) compound against PMMoV infection and replication was tested using a... -
Evaluation of Streptomyces saraciticas as Soil Amendments for Controlling Soil-Borne Plant Pathogens
Pei-Hsuan Wu, Tung-Tsuan Tsay, Peichen Chen 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 9 596-606 (11 pages)
Soil-borne diseases are the major problems in mono cropping. A mixture (designated LTM-m) composed of agricultural wastes and a beneficial microorganism Streptomyces saraceticus SS31 was used as soil amendments to evaluate its efficacy for managing Rhizoctonia solani and root knot nematode (Meloidogyne incognita). In vitro antagonistic assays revealed that SS31 spore suspensions and culture broths effectively suppressed the growth of R. solani, reduced nematode egg hatching, and increased... -
Effect of Salicylic Acid Formulations on Induced Plant Defense against Cassava Anthracnose Disease
Rungthip Sangpueak, Piyaporn Phansak, Kanjana Thumanu, Supatcharee Siriwong, Sopone Wongkaew, Natthiya Buensanteai 한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 4호 5 356-364 (9 pages)
33.3% under the greenhouse condition. The β-1,3-glucanase and chitinase enzyme activities were significantly increased at 24 hours after inocula- tion (HAI) and decrease at 48 HAI after Colletotrichum gloeosporioides challenge inoculation, respectively, for cassava treated with SA formulation. Synchrotron radi- ation–based Fourier-transform infrared microspectros- copy spectra revealed changes of the C=H stretching vibration (3,000-2,800 cm−1), pectin (1,740-1,700 cm−1), amide... -
Antagonistic and Plant Growth-Promoting Effects of Bacillus velezensis BS1 Isolated from Rhizosphere Soil in a Pepper Field
Jong-Hwan Shin, Byung-Seoung Park, Hee-Yeong Kim, Kwang-Ho Lee, Kyoung Su Kim 한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 10 307-314 (8 pages)
Pepper (Capsicum annuum L.) is an important agricul- tural crop worldwide. Recently, Colletotrichum scovillei, a member of the C. acutatum species complex, was re- ported to be the dominant pathogen causing pepper an- thracnose disease in South Korea. In the present study, we isolated bacterial strains from rhizosphere soil in a pepper field in Gangwon Province, Korea, and assessed their antifungal ability against C. scovillei strain KC05. Among these strains, a strain named BS1 significantly... -
Overcoming Encouragement of Dragon Fruit Plant (Hylocereus undatus) against Stem Brown Spot Disease Caused by Neoscytalidium dimidiatum Using Bacillus subtilis Combined with Sodium Bicarbonate
Sanan Ratanaprom, Korakot Nakkanong, Charassri Nualsri, Palakrit Jiwanit, Thanyakorn Rongsawat, Natthakorn Woraathakorn 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 1 205-214 (10 pages)
of the pathogenesis- related proteins, chitinase and glucanase, and the phenylpropanoid biosynthetic pathway enzymes, peroxidase and phenyl alanine ammonia-lyase, were triggered. Significant lignin deposition was also detected in treated cladodes of injured dragon fruit plants in in vivo experiments. In summary, B. subtilis supernatant combined with sodium bicarbonate protected dragon fruit plant loss through stem brown spot disease during plant development in the field through pathogenic fungal... -
Necrotrophic Fungus Pyrenophora tritici-repentis Triggers Expression of Multiple Resistance Components in Resistant and Susceptible Wheat Cultivars
Ethan J. Andersen, Madhav P. Nepal, Shaukat Ali 한국식물병리학회 The Plant Pathology Journal 16 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 2호 2 99-114 (16 pages)
Tan spot of wheat, caused by Pyrenophora tritici-re- pentis (Ptr), results in a yield loss through chlorosis and necrosis of healthy leaf tissue. The major objective of this study was to compare gene expression in resistant and susceptible wheat cultivars after infection with Ptr ToxA-producing race 2 and direct infiltration with Ptr ToxA proteins. Greenhouse experiments included ex- posure of the wheat cultivars to pathogen inoculum or direct infiltration of leaf tissue with Ptr-ToxA protein... -
Transcriptional Changes of Plant Defense-Related Genes in Response to Clavibacter Infection in Pepper and Tomato
In Sun Hwang, Eom-Ji Oh, Chang-Sik Oh 한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 5호 7 450-458 (9 pages)
at 5 dai, compared with mock or low-virulent strain. Expression of PR1a, Osmotin-like, Chitinase, and Chitinase class 2 was increased, regardless of virulence level. Expression of LoxA gene was not affected by Clavibacter inoculation. These results suggested that Clavibacter infection promotes induction of certain defense-related genes in host plants and that differential expression of those genes by low-virulent Clavibacter infection might be affected by their endophytic lifestyle in plants. -
Calcineurin-Responsive Transcription Factor CgCrzA Is Required for Cell Wall Integrity and Infection-Related Morphogenesis in Colletotrichum gloeosporioides
Ping Wang, Bing Li, Yu-Ting Pan, Yun-Zhao Zhang, De-Wei Li, Lin Huang 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 5호 1 385-397 (13 pages)
The ascomycete fungus Colletotrichum gloeosporioides infects a wide range of plant hosts and causes enormous economic losses in the world. The transcription factors (TFs) play an important role in development and pathogenicity of many organisms. In this study, we found that the C2H2 TF CgCrzA is localized in both cytoplasm and nucleus under standard condition, and it translocated from cytoplasm to nucleus in a calcineurin- dependent manner. Moreover, the ΔCgCrzA was hypersensitive to cell wall... -
A LysM Domain-Containing Protein LtLysM1 Is Important for Vegetative Growth and Pathogenesis in Woody Plant Pathogen Lasiodiplodia theobromae
Dulanjalee Lakmali Harishchandra, Wei Zhang, Xinghong Li, Kandawatte Wedaralalage Thilini Chethana, Kevin David Hyde, Siraprapa Brooks, Jiye Yan, Junbo Peng 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 4호 3 323-334 (12 pages)
Lysin motif (LysM) proteins are reported to be necessary for the virulence and immune response suppression in many herbaceous plant pathogens, while far less is documented in woody plant pathogens. In this study, we preliminarily characterized the molecular function of a LysM protein LtLysM1 in woody plant pathogen Lasiodiplodia theobromae. Transcriptional profiles revealed that LtLysM1 is highly expressed at infectious stages, especially at 36 and 48 hours post inoculation. Amino acid sequence... -
Screening and Application of Bacillus Strains Isolated from Nonrhizospheric Rice Soil for the Biocontrol of Rice Blast
Yuexia Sha, Qingchao Zeng, Shuting Sui 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 4 231-243 (13 pages)
232 bacterial isolates were extracted from nonrhizospheric rice soil and were screened for antifungal activity against M. oryzae using a leaf segment assay. Strains S170 and S9 showed significant antagonistic activity against M. oryzae in vitro and in leaf disk assays, and controlled M. oryzae infection under greenhouse conditions. The results showed that strains S170 and S9 could effectively control rice leaf blast and panicle neck blast after five spray treatments in field. This suggested that... -
Roles of Fungal Volatiles from Perspective of Distinct Lifestyles in Filamentous Fungi
Mohamed El-Agamy Farh, Junhyun Jeon 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 1 193-203 (11 pages)
Volatile compounds (VOCs) are not only media for communication within a species but also effective tools for sender to manipulate behavior and physiology of receiver species. Although the influence of VOCs on the interactions among organisms is evident, types of VOCs and specific mechanisms through which VOCs work during such interactions are only beginning to become clear. Here, we review the fungal volatile compounds (FVOCs) and their impacts on different recipient or- ganisms from perspective... -
Hexanal Vapor Induced Resistance against Major Postharvest Pathogens of Banana (Musa acuminata L.)
Durgadevi Dhakshinamoorthy, Srivignesh Sundaresan, Arumukapravin Iyadurai, Kizhaeral Sevathapandian Subramanian, Gnanaguru Janaki Janavi, Gopinathan Paliyath, Jayasankar Subramanian 한국식물병리학회 The Plant Pathology Journal 15 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 2호 3 133-147 (15 pages)
Hexanal, a C-6 aldehyde has been implicated to have antimicrobial properties. Hence, this study was con- ducted to determine the antifungal activities of hexanal vapor against major postharvest pathogens of banana viz., Colletotrichum gloeosporioides and Lasiodiplodia theobromae. The pathogens were cultured in vitro and exposed to hexanal vapor at 600, 800, 1,000 and 1,200 ppm. Mycelial growth of both fungal pathogens were inhibited completely at 800 ppm and the incidence of anthracnose and... -
Nitric Oxide Plays an Important Role in β-Aminobutyric Acid-Induced Resistance to Botrytis cinerea in Tomato Plants
Rui Li, Jiping Sheng, Lin Shen 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 2호 2 121-132 (12 pages)
BABA treatment reduced physical signs of infection and increased both the transcription of key defense marker genes and the activity of defensive enzymes. Interestingly, compared to treatment with BABA alone, treatment with BABA plus cPTIO (NO specific scavenger) not only signifi- cantly reduced NO accumulation, but also increased disease incidence and lesion area. These results sug- gest that NO accumulation plays an important role in BABA-induced resistance against B. cinerea in tomato plants. -
Genetic Diversity Studies and Identification of Molecular and Biochemical Markers Associated with Fusarium Wilt Resistance in Cultivated Faba Bean (Vicia faba)
Amer F. Mahmoud, Bahaa E. S. Abd El-Fatah 한국식물병리학회 The Plant Pathology Journal 18 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 1호 2 11-28 (18 pages)
Faba bean (Vicia faba L.) is one of the most important legume crops in Egypt. However, production of faba bean is affected by several diseases including fungal diseases. Fusarium wilt incited by Fusarium oxysporum Schlecht. was shown to be the most common wilt disease of faba bean in Assiut Governorate. Evaluation of 16 faba bean genotypes for the resistance to Fusarium wilt was carried out under greenhouse conditions. Three molecular marker systems (inter-simple sequence repeat [ISSR], sequence...
