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Colletotrichum

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https://www.readbyqxmd.com/read/28219524/the-function-and-transcriptome-analysis-of-a-bzip-transcription-factor-cgap1-in-colletotrichum-gloeosporioides
#1
Xiaoyu Li, Yateng Wu, Zhiqiang Liu, Chenghui Zhang
Colletotrichum gloeosporioides is an important pathogen of anthracnose, which is able to infect numerous crops in tropical and subtropical regions, causing great economic losses. To investigate the fungal response to host-generated reactive oxygen species (ROS), we cloned and characterized the CgAP1 gene of C. gloeosporioides. CgAP1 encoded a bZIP transcription factor which had a bZIP DNA-binding domain and two cysteine-rich domains structurally and functionally related to Saccharomyces cerevisiae YAP1. Deletion of CgAP1 in C...
April 2017: Microbiological Research
https://www.readbyqxmd.com/read/28215508/biocatalyst-mediated-production-of-11-15-dihydroxy-derivatives-of-androst-1-4-dien-3-17-dione
#2
Yuqian Qiao, Yanbing Shen, Wei Huang, Yanping Wang, Jiajia Ren, Ting Xia, Min Wang
Hydroxylation of steroids at various positions is a powerful tool for the production of valuable pharmaceutical ingredients and precursors. Our paper reported the synchronous dihydroxylation of an efficient strain, i.e., Colletotrichum lini AS3.4486, at two points. C. lini AS3.4486 was selected from 10 strains; this strain can catalyze the dihydroxylation of androst-1,4-dien-3,17-dione at C-11α and C-15α positions. Transformation of ADD(I) by C. lini AS3.4486 produced metabolites II-IV. The structures of these compounds were elucidated by liquid chromatography-mass spectrometry (LC-MS), Fourier Transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), and X-ray as 15-hydroxyandrost-1,4-dien-3,17-dione (15α-OH-ADD; II), 11,15-dihydroxyandrost-1,4-dien-3,17-dione (11,15-diOH-ADD; III), and 15,17β-dihy-droxyandrost-1,4-dien-3-one (15-OH-BD; BD is the abbreviation of boldenone; IV)...
February 17, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28204541/cell-wall-composition-and-penetration-resistance-against-the-fungal-pathogen-colletotrichum-higginsianum-are-affected-by-impaired-starch-turnover-in-arabidopsis-mutants
#3
Timo Engelsdorf, Cornelia Will, Jörg Hofmann, Christine Schmitt, Brian B Merritt, Leonie Rieger, Marc S Frenger, André Marschall, Rochus B Franke, Sivakumar Pattathil, Lars M Voll
No abstract text is available yet for this article.
January 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28201983/comparative-analysis-of-the-mitochondrial-genomes-of-colletotrichum-gloeosporioides-sensu-lato-insights-into-the-evolution-of-a-fungal-species-complex-interacting-with-diverse-plants
#4
Xiaofei Liang, Xianglin Tian, Wenkui Liu, Tingyu Wei, Wei Wang, Qiuyue Dong, Bo Wang, Yanan Meng, Rong Zhang, Mark L Gleason, Guangyu Sun
BACKGROUND: The fungal species complex Colletotrichum gloeosporioides sensu lato contains over 20 plant-interacting species. These species exhibit different life styles (e.g., endophytes, foliar and fruit pathogens) and show considerable variation in host and tissue adaptation strategies. Accurate species delimitation in C. gloeosporioides s.l. is very challenging due to nascent lineage boundaries and phenotypic plasticity, which strongly impedes studies of the complex's host-interaction biology...
February 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28186158/transcriptome-analysis-reveals-a-complex-interplay-between-resistance-and-effector-genes-during-the-compatible-lentil-colletotrichum-lentis-interaction
#5
Vijai Bhadauria, Perumal Vijayan, Yangdou Wei, Sabine Banniza
Colletotrichum lentis is a hemibiotrophic pathogen and causes anthracnose on lentil. To understand the molecular mechanism underlying the symptomatic phase of infection, a cDNA plasmid library was developed from the susceptible lentil cultivar Eston infected with an isolate of the virulent race 0 of C. lentis. The library was sequenced on the Sanger sequencing platform, generating a total of 11,094 expressed sequence tags (ESTs) representing 3,488 unigenes. Mapping of unigenes onto the C. lentis and the L. culinaris genomes resulted in the identification of 2,418 unigenes of fungal origin and 1,070 unigenes of plant origin...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28174578/extracellular-alkalinization-as-a-defense-response-in-potato-cells
#6
Natalia Moroz, Karen R Fritch, Matthew J Marcec, Diwaker Tripathi, Andrei Smertenko, Kiwamu Tanaka
A quantitative and robust bioassay to assess plant defense response is important for studies of disease resistance and also for the early identification of disease during pre- or non-symptomatic phases. An increase in extracellular pH is known to be an early defense response in plants. In this study, we demonstrate extracellular alkalinization as a defense response in potatoes. Using potato suspension cell cultures, we observed an alkalinization response against various pathogen- and plant-derived elicitors in a dose- and time-dependent manner...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28167891/construction-of-a-system-for-the-strawberry-nursery-production-towards-elimination-of-latent-infection-of-anthracnose-fungi-by-a-combination-of-pcr-and-microtube-hybridization
#7
Kazuyoshi Furuta, Saki Nagashima, Tsuyoshi Inukai, Chikara Masuta
One of the major problems in strawberry production is difficulty in diagnosis of anthracnose caused by Colletotrichum acutatum or Glomerella cingulata in latent infection stage. We here developed a diagnostic tool for the latent infection consisting of initial culturing of fungi, DNA extraction, synthesis of PCR-amplified probes and microtube hybridization (MTH) using a macroarray. The initial culturing step is convenient to lure the fungi out of the plant tissues, and to extract PCR-inhibitor-free DNA directly from fungal hyphae...
February 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28161946/methyl-and-p-bromobenzyl-esters-of-hydrogenated-kaurenoic-acid-for-controlling-anthracnose-in-common-bean-plants
#8
Suellen F Mota, Denilson F Oliveira, Vladimir C G Heleno, Ana Carolina F Soares, Jacob O Midiwo, Elaine A Souza
Kaurenoic acid derivatives were prepared and submitted to in vitro assays with the fungus Colletotrichum lindemuthianum, which causes anthracnose disease in the common bean. The most active substances were found to be methyl and p-bromobenzylesters, 7 and 9, respectively, of the hydrogenated kaurenoic acid, which presented a minimum inhibitory concentration (MIC) of 0.097 and 0.131 mM, respectively, while the commercial fungicide methyl thiophanate (MT) presented a MIC of 0.143 mM. Substances 7 (1.401 mM) and 9 (1...
February 13, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28161088/synthesis-and-qsar-study-of-novel-%C3%AE-methylene-%C3%AE-butyrolactone-derivatives-as-antifungal-agents
#9
Yong-Ling Wu, De-Long Wang, En-Hui Guo, Shuang Song, Jun-Tao Feng, Xing Zhang
Thirty-six new α-benzylidene-γ-lactone compounds based α-methylene-γ-butyrolactone substructure were prepared and characterized by spectroscopic analysis. All compounds were evaluated for antifungal activities in vitro against six plant pathogenic fungi and the half maximal inhibitory concentration (IC50) against Botrytis cinerea and Colletotrichum lagenarium were investigated. Compounds 5c-3 and 5c-5 with the halogen atom exhibited excellent fungicidal activity against B. cinerea (IC50=22.91, 18.89μM)...
January 13, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28154492/first-report-of-anthracnose-caused-by-colletotrichum-fioriniae-on-chinese-matrimony-vine-in-korea
#10
May Moe Oo, Solomon Tweneboah, Sang-Keun Oh
A fungus, Colletotrichum fioriniae, was isolated for the first time from fruits of Chinese matrimony vine (Lycium chinense Mill.) in Korea. It was classified as C. fioriniae based on the morphological characteristics and nucleotide sequence of glyceraldehyde-3-phosphate-dehydrogenase and β-tubulin. To the best of our knowledge, this is the first report of C. fioriniae causing anthracnose of Chinese matrimony vine in Korea.
December 2016: Mycobiology
https://www.readbyqxmd.com/read/28146587/the-morphogenesis-related-ndr-kinase-pathway-of-colletotrichum-orbiculare-is-required-for-translating-plant-surface-signals-into-infection-related-morphogenesis-and-pathogenesis
#11
Sayo Kodama, Junya Ishizuka, Ito Miyashita, Takaaki Ishii, Takumi Nishiuchi, Hideto Miyoshi, Yasuyuki Kubo
Plant infection by pathogenic fungi involves the differentiation of appressoria, specialized infection structures, initiated by fungal sensing and responding to plant surface signals. How plant fungal pathogens control infection-related morphogenesis in response to plant-derived signals has been unclear. Here we showed that the morphogenesis-related NDR kinase pathway (MOR) of the cucumber anthracnose fungus Colletotrichum orbiculare is crucial for appressorium development following perception of plant-derived signals...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28139827/application-and-bioactive-properties-of-cati-a-trypsin-inhibitor-from-capsicum-annuum-seeds-membrane-permeabilization-oxidative-stress-and-intracellular-target-in-phytopathogenic-fungi-cells
#12
Marciele S Silva, Suzanna F F Ribeiro, Gabriel B Taveira, Rosana Rodrigues, Katia V S Fernandes, André O Carvalho, Ilka Maria Vasconcelos, Erica Oliveira Mello, Valdirene M Gomes
BACKGROUND: During the last few years, a growing number of antimicrobial peptides have been isolated from plants and particularly from seeds. Recent results from our laboratory have shown the purification of a new trypsin inhibitor, named CaTI, from chilli pepper (Capsicum annuum L.) seeds. This study aims to evaluate the antifungal activity and mechanism of action of CaTI on phytopathogenic fungi and detect the presence of protease inhibitors in other species of this genus. RESULTS: Our results show that CaTI can inhibit the growth of the phytopathogenic fungi Colletotrichum gloeosporioides and C...
January 31, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28115090/novel-1-2-3-triazolium-functionalized-starch-derivatives-synthesis-characterization-and-evaluation-of-antifungal-property
#13
Wenqiang Tan, Qing Li, Fang Dong, Shuai Qiu, Jingjing Zhang, Zhanyong Guo
Four novel 1,2,3-triazolium-functionalized starch derivatives were synthesized by N-alkylating the precursor starch derivatives with 1,2,3-triazole with iodomethane based on cuprous-catalyzed azide-alkyne cycloaddition (CuAAC). The detailed structural characterization was investigated by means of FTIR, UV-vis, (1)H NMR, and (13)C NMR spectra. The antifungal activities of starch derivatives against Colletotrichum lagenarium, Fusarium oxysporum, and Watermelon fusarium, were then assayed by hypha measurement in vitro...
March 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28103800/chmob2-binds-to-chcbk1-and-promotes-virulence-and-conidiation-of-the-fungal-pathogen-colletotrichum-higginsianum
#14
Johannes Schmidpeter, Marlis Dahl, Jörg Hofmann, Christian Koch
BACKGROUND: Mob family proteins are conserved between animals, plants and fungi and are essential for the activation of NDR kinases that control crucial cellular processes like cytokinesis, proliferation and morphology. RESULTS: We identified a hypomorphic allele of ChMOB2 in a random insertional mutant (vir-88) of the hemibiotrophic ascomycete fungus Colletotrichum higginsianum. The mutant is impaired in conidiation, host penetration and virulence on Arabidopsis thaliana...
January 19, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28074041/transcription-factor-xpp1-is-a-switch-between-primary-and-secondary-fungal-metabolism
#15
Christian Derntl, Bernhard Kluger, Christoph Bueschl, Rainer Schuhmacher, Robert L Mach, Astrid R Mach-Aigner
Fungi can produce a wide range of chemical compounds via secondary metabolism. These compounds are of major interest because of their (potential) application in medicine and biotechnology and as a potential source for new therapeutic agents and drug leads. However, under laboratory conditions, most secondary metabolism genes remain silent. This circumstance is an obstacle for the production of known metabolites and the discovery of new secondary metabolites. In this study, we describe the dual role of the transcription factor Xylanase promoter binding protein 1 (Xpp1) in the regulation of both primary and secondary metabolism of Trichoderma reesei Xpp1 was previously described as a repressor of xylanases...
January 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28073340/a-comparative-genomic-analysis-of-putative-pathogenicity-genes-in-the-host-specific-sibling-species-colletotrichum-graminicola-and-colletotrichum-sublineola
#16
E A S Buiate, K V Xavier, N Moore, M F Torres, M L Farman, C L Schardl, L J Vaillancourt
BACKGROUND: Colletotrichum graminicola and C. sublineola cause anthracnose leaf and stalk diseases of maize and sorghum, respectively. In spite of their close evolutionary relationship, the two species are completely host-specific. Host specificity is often attributed to pathogen virulence factors, including specialized secondary metabolites (SSM), and small-secreted protein (SSP) effectors. Genes relevant to these categories were manually annotated in two co-occurring, contemporaneous strains of C...
January 10, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28062071/chemical-profile-and-defensive-function-of-the-latex-of-euphorbia-peplus
#17
Juan Hua, Yan Liu, Chao-Jiang Xiao, Shu-Xi Jing, Shi-Hong Luo, Sheng-Hong Li
Plant latex is an endogenous fluid secreted from highly specialized laticifer cells and has been suggested to act as a plant defense system. The chemical profile of the latex of Euphorbia peplus was investigated. A total of 13 terpenoids including two previously unknown diterpenoids, (2S*,3S*,4R*,5R*,6R*,8R*,l1R*,13S*,14S*,15R*, 16R*)-5,8,15-triacetoxy-3-benzoyloxy-11,16-dihydroxy-9-oxopepluane and (2R*,3R*, 4S*,5R*,7S*,8S*,9S*,l3S*,14S*,15R*)-2,5,8,9,14-pentaacetoxy-3-benzoyloxy-15-hydroxy-7-isobutyroyloxyjatropha-6(17),11E-diene), ten known diterpenoids, and a known acyclic triterpene alcohol peplusol, were identified, using HPLC and UPLC-MS/MS analyses and through comparison with the authentic compounds isolated from the whole plant...
January 3, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28058469/fungal-endophytes-an-alternative-source-for-production-of-volatile-compounds-from-agarwood-oil-of-aquilaria-subintegra
#18
Sakon Monggoot, Siam Popluechai, Eleni Gentekaki, Patcharee Pripdeevech
Fungal endophytes are microorganisms that are well-known for producing a diverse array of secondary metabolites. Recent studies have uncovered the bioprospecting potential of several plant endophytic fungi. Here, we demonstrate the presence of highly bioactive fungal endophytic species in Aquilaria subintegra, a fragrant wood plant collected from Thailand. Thirty-three fungal endophytic strains were isolated and further identified to genus level based on morphological characteristics. These genera included Colletotrichum, Pestalotiopsis, Fusarium, Russula, Arthrinium, Diaporthe and Cladosporium...
January 5, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28042942/colletochlorins-e-and-f-new-phytotoxic-tetrasubstituted-pyran-2-one-and-dihydrobenzofuran-isolated-from-colletotrichum-higginsianum-with-potential-herbicidal-activity
#19
Marco Masi, Alessio Cimmino, Angela Boari, Angela Tuzi, Maria Chiara Zonno, Riccardo Baroncelli, Maurizio Vurro, Antonio Evidente
A new tetrasubstituted pyran-2-one and a new dihydrobenzofuran, named colletochlorins E and F (1 and 2, respectively), were isolated from the culture filtrates of the fungus Colletotrichum higginsianum together with the already known colletochlorin A, 4-chloroorcinol, and colletopyrone. Colletochlorin E, the main metabolite, and colletochlorin F were characterized by spectroscopic (NMR, HRESIMS) and chemical methods as 3-[7-chloro-4-hydroxy-2-(1-hydroxy-1-methylethyl)-6-methyl-2,3-dihydrobenzofuran-5-ylmethyl]-4-hydroxy-5,6-dimethylpyran-2-one and 7-chloro-2-(1-hydroxy-1-methylethyl)-6-methyl-2,3-dihydrobenzofuran-4-ol, respectively...
February 3, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28030573/cation-stress-responsive-transcription-factors-slta-and-crza-regulate-morphogenetic-processes-and-pathogenicity-of-colletotrichum-gloeosporioides
#20
Amit K Dubey, Shiri Barad, Neta Luria, Dilip Kumar, Eduardo A Espeso, Dov B Prusky
Growth of Colletotrichum gloeosporioides in the presence of cation salts NaCl and KCl inhibited fungal growth and anthracnose symptom of colonization. Previous reports indicate that adaptation of Aspergillus nidulans to salt- and osmotic-stress conditions revealed the role of zinc-finger transcription factors SltA and CrzA in cation homeostasis. Homologs of A. nidulans SltA and CrzA were identified in C. gloeosporioides. The C. gloeosporioides CrzA homolog is a 682-amino acid protein, which contains a C2H2 zinc finger DNA-binding domain that is highly conserved among CrzA proteins from yeast and filamentous fungi...
2016: PloS One
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