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Colletotrichum

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https://www.readbyqxmd.com/read/28642771/transcriptomic-analysis-of-avocado-hass-persea-americana-mill-in-the-interaction-system-fruit-chitosan-colletotrichum
#1
Luis-Ángel Xoca-Orozco, Esther Angélica Cuellar-Torres, Sandra González-Morales, Porfirio Gutiérrez-Martínez, Ulises López-García, Luis Herrera-Estrella, Julio Vega-Arreguín, Alejandra Chacón-López
Avocado (Persea americana) is one of the most important crops in Mexico as it is the main producer, consumer, and exporter of avocado fruit in the world. However, successful avocado commercialization is often reduced by large postharvest losses due to Colletotrichum sp., the causal agent of anthracnose. Chitosan is known to have a direct antifungal effect and acts also as an elicitor capable of stimulating a defense response in plants. However, there is little information regarding the genes that are either activated or repressed in fruits treated with chitosan...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28607439/qtl-mapping-reveals-genetic-determinants-of-fungal-disease-resistance-in-the-wild-lentil-species-lens-ervoides
#2
Vijai Bhadauria, Larissa Ramsay, Kirstin E Bett, Sabine Banniza
Lens ervoides, a wild relative of lentil is an important source of allelic diversity for enhancing the genetic resistance of the cultivated species against economically important fungal diseases, such as anthracnose and Stemphylium blight caused by Colletotrichum lentis and Stemphylium botryosum, respectively. To unravel the genetic control underlying resistance to these fungal diseases, a recombinant inbred line (RIL) population (n = 94, F9) originating from a cross between two L. ervoides accessions, L01-827A and IG 72815, was genotyped on the Illumina HiSeq 2500 platform...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28597159/metabolite-analysis-of-endophytic-fungi-from-cultivars-of-zingiber-officinale-rosc-identifies-myriad-of-bioactive-compounds-including-tyrosol
#3
C Anisha, E K Radhakrishnan
Endophytic fungi associated with rhizomes of four cultivars of Zingiber officinale were identified by molecular and morphological methods and evaluated for their activity against soft rot pathogen Pythium myriotylum and clinical pathogens. The volatile bioactive metabolites produced by these isolates were identified by GC-MS analysis of the fungal crude extracts. Understanding of the metabolites produced by endophytes is also important in the context of raw consumption of ginger as medicine and spice. A total of fifteen isolates were identified from the four varieties studied...
June 2017: 3 Biotech
https://www.readbyqxmd.com/read/28597158/fabrication-optimization-and-characterization-of-noble-silver-nanoparticles-from-sugarcane-leaf-saccharum-officinarum-extract-for-antifungal-application
#4
Manikandan Velu, Jeong-Ho Lee, Woo-Suk Chang, Nanh Lovanh, Yool-Jin Park, Palaniyappan Jayanthi, Velmurugan Palanivel, Byung-Taek Oh
Metal nanoparticles obtained from green route are gaining significant prominence as a result of their potential applications in nanomedicine and material engineering. Overall metal nanoparticles studied, silver nanoparticles (AgNPs) clutch prominent place in nanoparticles research field. Herein, we have reported the green synthesis of Saccharum officinarum leaf biomass extract-mediated synthesis of AgNPs. Initial nanoparticle production was confirmed by visual observation as color change from light yellow to bright brown color with yellow shade and spectrophotometrically at 450 nm and the various reaction conditions were optimized...
June 2017: 3 Biotech
https://www.readbyqxmd.com/read/28584293/expression-and-functional-analysis-of-the-lysine-decarboxylase-and-copper-amine-oxidase-genes-from-the-endophytic-fungus-colletotrichum-gloeosporioides-es026
#5
Xiangmei Zhang, Zhangqian Wang, Saad Jan, Qian Yang, Mo Wang
Huperzine A (HupA) isolated from Huperzia serrata is an important compound used to treat Alzheimer's disease (AD). Recently, HupA was reported in various endophytic fungi, with Colletotrichum gloeosporioides ES026 previously isolated from H. serrata shown to produce HupA. In this study, we performed next-generation sequencing and de novo RNA sequencing of C. gloeosporioides ES026 to elucidate the molecular functions, biological processes, and biochemical pathways of these unique sequences. Gene ontology and Kyoto Encyclopedia of Genes and Genomes assignments allowed annotation of lysine decarboxylase (LDC) and copper amine oxidase (CAO) for their conversion of L-lysine to 5-aminopentanal during HupA biosynthesis...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28576378/synergistic-mixtures-of-chitosan-and-mentha-piperita-l-essential-oil-to-inhibit-colletotrichum-species-and-anthracnose-development-in-mango-cultivar-tommy-atkins
#6
Kataryne Árabe Rimá de Oliveira, Lúcia Raquel Ramos Berger, Samara Amorim de Araújo, Marcos Paz Saraiva Câmara, Evandro Leite de Souza
This study assessed the efficacy of chitosan (CHI) and Mentha piperita L. essential oil (MPEO) alone or in combination to control the mycelial growth of five different Colletotrichum species, C. asianum, C. dianesei, C. fructicola, C. tropicale and C. karstii, identified as potential anthracnose-causing agents in mango (Mangifera indica L.). The efficacy of coatings of CHI and MPEO mixtures in controlling the development of anthracnose in mango cultivar Tommy Atkins was evaluated. CHI (2.5, 5, 7.5 and 10 mg/mL) and MPEO (0...
September 2017: Food Microbiology
https://www.readbyqxmd.com/read/28567620/endophytic-fungal-assemblage-in-achyranthes-aspera-linn-revealed-by-internal-transcribed-spacer-region-of-nuclear-ribosomal-rna-genes
#7
Reshma John, Linu Mathew
Only scanty reports are available on endophytic fungal associations in Achyranthes aspera Linn. Hence in this study a total of 504 isolates belonging to ten different species of fungi were isolated from asymptomatic, surface sterilised segments of leaf, stem and root of A. aspera collected from different locations of Kerala, India. Among the isolates ascomycetes were most prevalent. Colonisation rate of fungal endophytes was high in leaf tissue (95%) followed by stem (77.75%) and root segments (33.33%). The most frequent and dominant coloniser of the host plant were Colletotrichum sp...
June 2017: 3 Biotech
https://www.readbyqxmd.com/read/28559543/comparative-transcriptomic-analysis-indicates-genes-associated-with-local-and-systemic-resistance-to-colletotrichum-graminicola-in-maize
#8
Vívian de Jesus Miranda, William Farias Porto, Gabriel da Rocha Fernandes, Robert Pogue, Diego Oliveira Nolasco, Ana Claudia Guerra Araujo, Luciano Viana Cota, Camila Guimarães de Freitas, Simoni Campos Dias, Octavio Luiz Franco
The hemibiotrophic fungus Colletotrichum graminicola may cause severe damage to maize, affecting normal development of the plant and decreasing grain yield. In this context, understanding plant defense pathways at the inoculation site and systemically in uninoculated tissues can help in the development of genetic engineering of resistance against this pathogen. Previous work has discussed the molecular basis of maize - C. graminicola interaction. However, many genes involved in defense have not yet been exploited for lack of annotation in public databases...
May 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28558761/production-characterization-and-antifungal-activity-of-a-biosurfactant-produced-by-rhodotorula-babjevae-ys3
#9
Suparna Sen, Siddhartha Narayan Borah, Arijit Bora, Suresh Deka
BACKGROUND: Sophorolipids are one of the most promising glycolipid biosurfactants and have been successfully employed in bioremediation and various other industrial sectors. They have also been described to exhibit antimicrobial activity against different bacterial species. Nevertheless, previous literature pertaining to the antifungal activity of sophorolipids are limited indicating the need for further research to explore novel strains with wide antimicrobial activity. A novel yeast strain, Rhodotorula babjevae YS3, was recently isolated from an agricultural field in Assam, Northeast India...
May 30, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28555149/comparative-transcriptomics-reveals-differential-gene-expression-related-to-colletotrichum-gloeosporioides-resistance-in-the-octoploid-strawberry
#10
Feng Wang, Feng Zhang, Mengmeng Chen, Zhiheng Liu, Zhihong Zhang, Junfan Fu, Yue Ma
The strawberry is an important fruit worldwide; however, the development of the strawberry industry is limited by fungal disease. Anthracnose is caused by the pathogen Colletotrichum gloeosporioides and leads to large-scale losses in strawberry quality and production. However, the transcriptional response of strawberry to infection with C. gloeosporioides is poorly understood. In the present study, the strawberry leaf transcriptome of the 'Yanli' and 'Benihoppe' cultivars were deep sequenced via an RNA-seq analysis to study C...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28551220/control-of-anthracnose-disease-via-increased-activity-of-defence-related-enzymes-in-hass-avocado-fruit-treated-with-methyl-jasmonate-and-methyl-salicylate
#11
Marcin Glowacz, Nico Roets, Dharini Sivakumar
Development of anthracnose disease caused by Colletotrichum gloeosporioides Penz. is one of the major issues within the avocado supply chain. Exposure to methyl jasmonate (MeJA) and methyl salicylate (MeSA) vapours at 10 and 100µmoll(-1) was investigated as an alternative solution to commercial fungicide - prochloraz® that is currently being used by the industry. The incidence of anthracnose disease was found to be significantly reduced in 'Hass' avocado fruit treated with MeJA or MeSA vapours, especially at 100μmoll(-1)...
November 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28546091/comparative-secretome-analysis-of-colletotrichum-falcatum-identifies-a-cerato-platanin-protein-epl1-as-a-potential-pathogen-associated-molecular-pattern-pamp-inducing-systemic-resistance-in-sugarcane
#12
N M R Ashwin, Leonard Barnabas, Amalraj Ramesh Sundar, Palaniyandi Malathi, Rasappa Viswanathan, Antonio Masi, Ganesh Kumar Agrawal, Randeep Rakwal
Colletotrichum falcatum, an intriguing hemibiotrophic fungal pathogen causes red rot, a devastating disease of sugarcane. Repeated in vitro subculturing of C. falcatum under dark condition alters morphology and reduces virulence of the culture. Hitherto, no information is available on this phenomenon at molecular level. In this study, the in vitro secretome of C. falcatum cultured under light and dark conditions was analyzed using 2-DE coupled with MALDI TOF/TOF MS. Comparative analysis identified nine differentially abundant proteins...
May 22, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28542545/a-first-insight-into-the-involvement-of-phytohormones-pathways-in-coffee-resistance-and-susceptibility-to-colletotrichum-kahawae
#13
Inês Diniz, Andreia Figueiredo, Andreia Loureiro, Dora Batista, Helena Azinheira, Vítor Várzea, Ana Paula Pereira, Elijah Gichuru, Pilar Moncada, Leonor Guerra-Guimarães, Helena Oliveira, Maria do Céu Silva
Understanding the molecular mechanisms underlying coffee-pathogen interactions are of key importance to aid disease resistance breeding efforts. In this work the expression of genes involved in salicylic acid (SA), jasmonic acid (JA) and ethylene (ET) pathways were studied in hypocotyls of two coffee varieties challenged with the hemibiotrophic fungus Colletotrichum kahawae, the causal agent of Coffee Berry Disease. Based on a cytological analysis, key time-points of the infection process were selected and qPCR was used to evaluate the expression of phytohormones biosynthesis, reception and responsive-related genes...
2017: PloS One
https://www.readbyqxmd.com/read/28540357/data-on-microsatellite-markers-in-colletotrichum-gloeosporioides-s-l-polymorphism-levels-and-diversity-range
#14
Laurent Penet, Sophie Briand, Dalila Petro, François Bussière, Sébastien Guyader
Colletotrichum gloeosporioides is a species complex of fungi belonging to the Glomerellaceae family (Ascomycota). It has a global worldwide occurrence and while sometimes described as a plant endophytic commensal, it also often demonstrates pathogenicity on crops and is responsible for anthracnose disease in many cultivated species. Thirty-nine polymorphic microsatellites were isolated and their polymorphism levels were determined in 95 strains from Guadeloupe (Lesser Antilles), mostly isolated from Water Yam (Dioscorea alata)...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28535608/antifungal-activities-of-dimeric-sesquiterpenes-shizukaols-c-and-f-isolated-from-chloranthus-japonicus-sieb
#15
Tae Hoon Kang, Yun Mi Lee, Won Jung Lee, Eui Il Hwang, Ki Duk Park, Gyang Ja Choi, Jae Sun Moon, Ho-Yong Park, Sung Uk Kim
Two dimeric sesquitepenes were separated from Chloranthus japonicus Sieb. and identified as shizukaols C and F. They exhibited potent antifungal activities (MICs = 4-16 μg/ml) in vitro against various plant pathogenic fungi Pythium ultimum, Phytophthora infestans, Botrytis cinerea, Colletotrichum lagenarium, Alternaria kikuchana, and Magnaporthe grisea. Shizukaol C showed 88% and 91% protective activities in the greenhouse against Puccinia recondite (wheat leaf rust) and Phytophthora infestans (tomato late blight), respectively, at 100 µg/ml; shizukaol F exhibited 93% antifungal activity against Puccinia recondite at the same concentration...
May 24, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28501467/keratitis-by-a-rare-pathogen-colletotrichum-gloeosporioides-a-case-report
#16
S T Pote, A Chakraborty, K K Lahiri, M S Patole, R A Deshmukh, S R Shah
Colletotrichum species have been reported infrequently as the cause of keratitis or subcutaneous lesions. The patient we describe developed keratitis after ocular trauma. The sample from the corneal scrapings grew Colletotrichum gloeosporioides as identified from morphological characters and DNA sequence of the 'Internal Transcribed Spacer' (ITS) region. The patient underwent topical application of amphotericin-B followed by itraconazole and natamycin treatment. Simultaneous oral voriconazole regimen leads to complete regression of corneal ulcer...
May 10, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28489061/microbial-natural-product-alternariol-5-o-methyl-ether-inhibits-hiv-1-integration-by-blocking-nuclear-import-of-the-pre-integration-complex
#17
Jiwei Ding, Jianyuan Zhao, Zhijun Yang, Ling Ma, Zeyun Mi, Yanbing Wu, Jiamei Guo, Jinmin Zhou, Xiaoyu Li, Ying Guo, Zonggen Peng, Tao Wei, Haisheng Yu, Liguo Zhang, Mei Ge, Shan Cen
While Highly Active Antiretroviral Therapy (HAART) has significantly decreased the mortality of human immunodeficiency virus (HIV)-infected patients, emerging drug resistance to approved HIV-1 integrase inhibitors highlights the need to develop new antivirals with novel mechanisms of action. In this study, we screened a library of microbial natural compounds from endophytic fungus Colletotrichum sp. and identified alternariol 5-O-methyl ether (AME) as a compound that inhibits HIV-1 pre-integration steps. Time-of addition analysis, quantitative real-time PCR, confocal microscopy, and WT viral replication assay were used to elucidate the mechanism...
May 10, 2017: Viruses
https://www.readbyqxmd.com/read/28473373/draft-genome-sequences-of-two-isolates-of-colletotrichum-lindemuthianum-the-causal-agent-of-anthracnose-in-common-beans
#18
Casley Borges de Queiroz, Hilberty L Nunes Correia, Renato Pedrozo Menicucci, Pedro M Pereira Vidigal, Marisa Vieira de Queiroz
Colletotrichum lindemuthianum is the causal agent of anthracnose in common beans, one of the main limiting factors of their culture. Here, we report for the first time, to our knowledge, a draft of the complete genome sequences of two isolates belonging to 83.501 and 89 A2 2-3 of C. lindemutuianum.
May 4, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28469610/co-culturing-of-fungal-strains-against-botrytis-cinerea-as-a-model-for-the-induction-of-chemical-diversity-and-therapeutic-agents
#19
Rachel Serrano, Víctor González-Menéndez, Lorena Rodríguez, Jesús Martín, José R Tormo, Olga Genilloud
New fungal SMs (SMs) have been successfully described to be produced by means of in vitro-simulated microbial community interactions. Co-culturing of fungi has proved to be an efficient way to induce cell-cell interactions that can promote the activation of cryptic pathways, frequently silent when the strains are grown in laboratory conditions. Filamentous fungi represent one of the most diverse microbial groups known to produce bioactive natural products. Triggering the production of novel antifungal compounds in fungi could respond to the current needs to fight health compromising pathogens and provide new therapeutic solutions...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28458692/control-of-passion-fruit-fungal-diseases-using-essential-oils-extracted-from-rosemary-rosmarinus-officinalis-and-eucalyptus-eucalyptus-agglomerata-in-egerton-university-main-campus-njoro-kenya
#20
Paul Njenga Waithaka, Eliud Mugu Gathuru, Benson Muriuki Githaiga, Salome Nduta Kimani
Growth of fruits which form an important part of human diet has been jeopardized by the many fungal diseases that are present today. This study was conceived to isolate the most common fungal pathogens in passion fruits. Fungi were isolated using potato dextrose agar in addition to characterization using morphological, cultural, and biochemical means. Extraction of essential oils from rosemary (Rosmarinus officinalis) and eucalyptus (Eucalyptus agglomerata) was done. Before carrying the sensitivity test of essential oils to the fungal isolates, constituents of the essential oils were determined...
2017: International Journal of Microbiology
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