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https://www.readbyqxmd.com/read/28226231/cell-biology-of-the-plant-nucleus
#1
Iris Meier, Eric J Richards, David E Evans
The eukaryotic nucleus is enclosed by the nuclear envelope, which is perforated by the nuclear pores, the gateways of macromolecular exchange between the nucleoplasm and cytoplasm. The nucleoplasm is organized in a complex three-dimensional fashion that changes over time and in response to stimuli. Within the cell, the nucleus must be viewed as an organelle (albeit a gigantic one) that is a recipient of cytoplasmic forces and capable of morphological and positional dynamics. The most dramatic reorganization of this organelle occurs during mitosis and meiosis...
February 22, 2017: Annual Review of Plant Biology
https://www.readbyqxmd.com/read/28225975/descriptive-analysis-of-mycological-examination-of-patients-with-onychomycosis-treated-in-private-practice
#2
John Verrinder Veasey, Flávio Nappi, Clarisse Zaitz, Laura Hitomi Muramatu
This is a retrospective study of 160 patients treated in private practice in São Paulo from March 2003 to March 2015. We analyzed 171 results of direct mycological examinations and fungal cultures from nail scrapings. The agreement between direct mycological examination results and fungal culture was satisfactory, consistent with the literature (kappa 0.603). The main agent identified was Trichophyton rubrum (51%). We observed an isolation rate of non-dermatophyte filamentous fungi superior to the literature (34%)...
January 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28225951/comparative-microscopic-analysis-of-nail-clippings-from-patients-with-cutaneous-psoriasis-and-psoriatic-arthritis
#3
Gabriela Poglia Fonseca, Betina Werner, Gabriela Seidel, Henrique Luiz Staub
BACKGROUND: The nail involvement in psoriasis is related to psoriatic arthritis and may represent a predictor of the disease. OBJECTIVES: To analyze, through nail clipping, clinically normal and dystrophic nails of patients with cutaneous psoriasis and psoriatic arthritis. METHODS: This is a cross-sectional multicenter study, conducted between August 2011 and March 2012. Patients were divided into four groups: patients with cutaneous psoriasis and onychodystrophy, patients with cutaneous psoriasis and clinically normal nails, patients with psoriatic arthritis and onychodystrophy and patients with psoriatic arthritis and clinically normal nails...
January 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28225711/reactive-oxygen-therapy-a-novel-therapy-in-soft-tissue-infection
#4
Matthew Dryden
PURPOSE OF REVIEW: The global burden of disease in skin and soft tissue lesions is enormous. Many chronic, poorly healing lesions get treated with antibiotics despite the lack of evidence for long-term antibiotics. There is a global antibiotic resistance crisis driven largely by inappropriate use of large volumes of antibiotics. One solution is to reduce the selection pressure on bacteria by reducing the volume of antibiotic use in medicine, agriculture and the environment. There are few novel antimicrobials...
April 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28225559/effects-of-an-alternative-oxidase-gene-on-conidia-viability-under-external-stresses-in-monascus-ruber-m7
#5
Yanchun Shao, Qi Li, Youxiang Zhou, Fusheng Chen
Monascus species can produce natural edible pigments and many other bioactive metabolites. In this study, mraox gene (Monascus ruber alternative oxidase) was isolated, sequenced, and replaced in order to investigate the function in resistance of conidia to stressful conditions. The derived protein of the mraox gene consisted of 350 amino acids with a conserved ferritin-like diiron-binding domain at the C-terminus, sharing a high homolog with alternative oxidase proteins in other filamentous fungi. Deletion of mraox gene repressed the conidia germination rate (CGR) when conidia were exposed to H2 O2 , high temperature (40 and 50 °C) and alkerline buffer (pH8...
February 22, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/28224643/endophytic-phomopsis-sp-colonization-in-oryza-sativa-was-found-to-result-in-plant-growth-promotion-and-piperine-production
#6
Chithra S, Jasim B, Jyothis Mathew, Radhakrishnan E K
Endophytic fungi have been reported to have the acquired ability to synthesize host plant specific medicinal natural products. Many fungi with such properties have been characterized and optimized for the conditions which favor maximal production of desired products. However, the inherent plant colonization property of promising endophytic fungi is least studied. Exploiting the transgenome functioning of these fungi have immense applications to add beneficial features to non-host plants. In the present study, endophytic fungus Phomopsis sp...
February 22, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28224386/%C3%AE-bisabolol-inhibits-aspergillus-fumigatus-af239-growth-via-affecting-microsomal-%C3%A2-24-sterol-methyltransferase-as-a-crucial-enzyme-in-ergosterol-biosynthesis-pathway
#7
Zahra Jahanshiri, Masoomeh Shams-Ghahfarokhi, Farnoush Asghari-Paskiabi, Reza Saghiri, Mehdi Razzaghi-Abyaneh
Finding new compounds with antifungal properties is an important task due to the side effects of common antifungal drugs and emerging antifungal resistance in fungal strains. ∆(24)-sterol methyltransferase (24-SMT) is a crucial enzyme that plays important roles in fungal ergosterol biosynthesis pathway and is not found in humans. In the present study, the effects of α-bisabolol on Aspergillus fumigatus Af239 growth and ergosterol synthesis on the base of 24-SMT enzyme activity were studied; in addition, the expression of erg6, the gene encoded 24-SMT, was considered...
March 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28224223/agarwood-formation-induced-by-fermentation-liquid-of-lasiodiplodia-theobromae-the-dominating-fungus-in-wounded-wood-of-aquilaria-sinensis
#8
Xuyu Chen, Chun Sui, Yangyang Liu, Yun Yang, Peiwei Liu, Zheng Zhang, Jianhe Wei
Agarwood is broadly used in incense and medicine. Traditionally, agarwood formation is induced by wounding the trunks and branches of some species of Aquilaria spp., including A. sinensis. As recently evidenced, some fungi or their fermentation liquid may have the potential of inducing agarwood formation. The present study aimed to analyze the fungi isolated from an agarwood-producing A. sinensis tree and subsequently identify the fungi capable of promoting agarwood formation. We identified a total of 110 fungi isolates based on their morphological characteristics and rDNA ITS sequences...
February 21, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28223991/the-comparison-of-expressed-candidate-secreted-proteins-from-two-arbuscular-mycorrhizal-fungi-unravels-common-and-specific-molecular-tools-to-invade-different-host-plants
#9
Laurent Kamel, Nianwu Tang, Mathilde Malbreil, Hélène San Clemente, Morgane Le Marquer, Christophe Roux, Nicolas Frei Dit Frey
Arbuscular mycorrhizal fungi (AMF), belonging to the fungal phylum Glomeromycota, form mutualistic symbioses with roots of almost 80% of land plants. The release of genomic data from the ubiquitous AMF Rhizophagus irregularis revealed that this species possesses a large set of putative secreted proteins (RiSPs) that could be of major importance for establishing the symbiosis. In the present study, we aimed to identify SPs involved in the establishment of AM symbiosis based on comparative gene expression analyses...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28223388/in-vitro-and-in-vivo-antifungal-profile-of-a-novel-and-long-acting-inhaled-azole-pc945-on-aspergillus-fumigatus-infection
#10
Thomas Colley, Alexandre Alanio, Steven L Kelly, Gurpreet Sehra, Yasuo Kizawa, Andrew G S Warrilow, Josie E Parker, Diane E Kelly, Genki Kimura, Lauren Anderson-Dring, Takahiro Nakaoki, Mihiro Sunose, Stuart Onions, Damien Crepin, Franz Lagasse, Matthew Crittall, Jonathan Shannon, Michael Cooke, Stéphane Bretagne, John King-Underwood, John Murray, Kazuhiro Ito, Pete Strong, Garth Rapeport
The profile of PC945, a novel triazole antifungal, designed for administration via inhalation, has been assessed in a range of in vitro and in vivo studies. PC945 was characterized as a potent, tight-binding inhibitor of Aspergillus fumigatus sterol 14α-demethylase (CYP51A and CYP51B) activity (IC50, 0.23 μM and 0.22 μM, respectively), with characteristic type II azole binding spectra. Against 96 clinically isolated A. fumigatus strains, the MIC values of PC945 ranged from 0.032∼>8 μg/ml, whilst those of voriconazole ranged from 0...
February 21, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28223376/bactericidal-and-fungicidal-activity-of-n-chlorotaurine-is-enhanced-in-cystic-fibrosis-sputum-medium
#11
Martina Gruber, Ivan Moser, Markus Nagl, Michaela Lackner
Lung infections with multiresistant pathogens are a major problem of patients suffering from cystic fibrosis (CF). N-chlorotaurine (NCT), a microbicidal active chlorine compound with no resistance development, is well tolerated upon inhalation. The aim of this study was to investigate NCT on its bactericidal and fungicidal activity in vitro in artificial sputum medium (ASM) mimicking the composition of cystic fibrosis mucus.The medium was inoculated with bacteria (Staphylococcus aureus including some MRSA strains, Pseudomonas aeruginosa, Escherichia coli) or spores of fungi (Aspergillus fumigatus, Aspergillus terreus, Candida albicans, Scedosporium apiospermum, Scedosporium boydii, Lomentospora prolificans, Scedosporium aurantiacum, Scedosporium minutisporum, Exophiala dermatitidis, Geotrichum sp...
February 21, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28223360/a-novel-subtilase-inhibitor-in-plants-shows-structural-and-functional-similarities-to-protease-propeptides
#12
Mathias Hohl, Annick Stintzi, Andreas Schaller
The propeptides of subtilisin-like serine proteinases (SBTs) serve dual functions as intramolecular chaperones that are required for enzyme folding and as inhibitors of the mature proteases. SBT propeptides are homologous to the I9 family of protease inhibitors that have only been described in fungi. Here we report the identification and characterization of Subtilisin Propeptide-Like Inhibitor 1 (SPI-1) from Arabidopsis thaliana. Sequence similarity and the shared β-α-β-β-α-β core structure identified SPI-1 as a member of the I9 inhibitor family, and as the first independent I9 inhibitor in higher eukaryotes...
February 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28222891/coumarins-scaffolds-as-cox-inhibitors
#13
REVIEW
Hrishikesh Mohan Revankar, Syed Nasir Abbas Bukhari, Gajjela Bharath Kumar, Hua-Li Qin
The discovery of COX enzymes has led to a better understanding of inflammation and its related biological pathways. Apart from being related to inflammation and pain, it has also been associated with cancer and neuropsychiatric diseases such as schizophrenia. Proverbially speaking, study of these enzymes has been crucial as they happen to "have fingers in many pies". Non-steroidal anti-inflammatory drugs (NSAID) that act specifically as COX-2 inhibitors have been known for a while; however these are also associated with severe side effects such as cardiac problems...
February 9, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28222795/parasites-of-parasites-of-bats-laboulbeniales-fungi-ascomycota-on-bat-flies-diptera-nycteribiidae-in-central-europe
#14
Danny Haelewaters, Walter P Pfliegler, Tamara Szentiványi, Mihály Földvári, Attila D Sándor, Levente Barti, Jasmin J Camacho, Gerrit Gort, Péter Estók, Thomas Hiller, Carl W Dick, Donald H Pfister
BACKGROUND: Bat flies (Streblidae and Nycteribiidae) are among the most specialized families of the order Diptera. Members of these two related families have an obligate ectoparasitic lifestyle on bats, and they are known disease vectors for their hosts. However, bat flies have their own ectoparasites: fungi of the order Laboulbeniales. In Europe, members of the Nycteribiidae are parasitized by four species belonging to the genus Arthrorhynchus. We carried out a systematic survey of the distribution and fungus-bat fly associations of the genus in central Europe (Hungary, Romania)...
February 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28222763/the-discovery-of-novel-lpmo-families-with-a-new-hidden-markov-model
#15
Gerben P Voshol, Erik Vijgenboom, Peter J Punt
BACKGROUND: Renewable biopolymers, such as cellulose, starch and chitin are highly resistance to enzymatic degradation. Therefore, there is a need to upgrade current degradation processes by including novel enzymes. Lytic polysaccharide mono-oxygenases (LPMOs) can disrupt recalcitrant biopolymers, thereby enhancing hydrolysis by conventional enzymes. However, novel LPMO families are difficult to identify using existing methods. Therefore, we developed a novel profile Hidden Markov model (HMM) and used it to mine genomes of ascomycetous fungi for novel LPMOs...
February 21, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28222700/quantitative-evaluation-of-protocorm-growth-and-fungal-colonization-in-bletilla-striata-orchidaceae-reveals-less-productive-symbiosis-with-a-non-native-symbiotic-fungus
#16
Tatsuki Yamamoto, Chihiro Miura, Masako Fuji, Shotaro Nagata, Yuria Otani, Takahiro Yagame, Masahide Yamato, Hironori Kaminaka
BACKGROUND: In nature, orchid plants depend completely on symbiotic fungi for their nutrition at the germination and the subsequent seedling (protocorm) stages. However, only limited quantitative methods for evaluating the orchid-fungus interactions at the protocorm stage are currently available, which greatly constrains our understanding of the symbiosis. Here, we aimed to improve and integrate quantitative evaluations of the growth and fungal colonization in the protocorms of a terrestrial orchid, Blettila striata, growing on a plate medium...
February 21, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28222467/design-and-synthesis-of-new-1-3-4-oxadiazole-benzothiazole-and-hydrazone-derivatives-as-promising-chemotherapeutic-agents
#17
Betül Kaya, Weiam Hussin, Leyla Yurttaş, Gülhan Turan-Zitouni, Hülya Karaca Gençer, Merve Baysal, Abdullah Burak Karaduman, Zafer Asim Kaplancıklı
Looking for new cytotoxic and antimicrobial agents with improved antitumor activity, a series of hydrazide and oxadiazole derivatives were designed and synthesized using 3-methoxyphenol as starting substance. Novel N'-(arylidene)-2-(3-methoxyphenoxy)acetohydrazide derivatives (4a-f)/1-(4-substitutedphenyl)-2-[(5-[(3-methoxyphenoxy)methyl]-1,3,4-oxadiazol-2-yl)thio]ethan-1-one derivatives (6a-f)/N-(6-substitutedbenzothiazol-2-yl)-2-[(5-[(3-methoxyphenoxy)methyl]-1,3,4-oxadiazol-2-yl)thio]acetamide derivatives (7a-e) were obtained and evaluated for their in vitro antimicrobial activity against various gram-positive, gram-negative bacteria and fungi...
February 21, 2017: Drug Research
https://www.readbyqxmd.com/read/28222204/comparative-transcriptome-and-potential-antiviral-signaling-pathways-analysis-of-the-gills-in-the-red-swamp-crayfish-procambarus-clarkii-infected-with-white-spot-syndrome-virus-wssv
#18
Zhi-Qiang Du, Yan-Hui Jin
Red swamp crayfish is an important model organism for research of the invertebrate innate immunity mechanism. Its excellent disease resistance against bacteria, fungi, and viruses is well-known. However, the antiviral mechanisms of crayfish remain unclear. In this study, we obtained high-quality sequence reads from normal and white spot syndrome virus (WSSV)-challenged crayfish gills. For group normal (GN), 39,390,280 high-quality clean reads were randomly assembled to produce 172,591 contigs; whereas, 34,011,488 high-quality clean reads were randomly assembled to produce 182,176 contigs for group WSSV-challenged (GW)...
February 20, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28222201/linkage-and-mapping-of-quantitative-trait-loci-associated-with-angular-leaf-spot-and-powdery-mildew-resistance-in-common-beans
#19
Denis Bassi, Boris Briñez, Juliana Santa Rosa, Paula Rodrigues Oblessuc, Caléo Panhoca de Almeida, Stella Maris Nucci, Larissa Chariel Domingos da Silva, Alisson Fernando Chiorato, Rosana Pereira Vianello, Luis Eduardo Aranha Camargo, Matthew Wohlgemuth Blair, Luciana Lasry Benchimol-Reis
Angular leaf spot (ALS) and powdery mildew (PWM) are two important fungi diseases causing significant yield losses in common beans. In this study, a new genetic linkage map was constructed using single sequence repeats (SSRs) and single nucleotide polymorphisms (SNPs), in a segregating population derived from the AND 277 x SEA 5 cross, with 105 recombinant inbred lines. Phenotypic evaluations were performed in the greenhouse to identify quantitative trait loci (QTLs) associated with resistance by means of the composite interval mapping analysis...
February 20, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28221942/effect-of-fungicides-on-growth-and-ochratoxin-a-production-by-aspergillus-carbonarius-from-brazilian-wine-grapes
#20
Michelle F Terra, Nathasha de A Lira, Fabiana R F Passamani, Wilder Douglas Santiago, Maria das Graças Cardoso, Luís Roberto Batista
Prevention in the field of mycotoxin-producing fungi is the most effective strategy for controlling the presence of mycotoxins in foods. Chemical fungicides are widely used to protect crops, so their implications on mycotoxin production need to be considered. Therefore, the aim of this study was to evaluate the effect in vitro and on grapes of five fungicides commonly used on grape cultures in Brazil on Aspergillus carbonarius growth and ochratoxin A (OTA) production. At the doses recommended by manufacturers, most fungicides significantly reduced A...
September 2016: Journal of Food Protection
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