نتایج جستجو برای: filamentous microorganisms

تعداد نتایج: 57363  

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 2014
Ri-Liang Heng Euntaek Lee Laurent Pilon

This study presents experimental measurements of the absorption and scattering cross sections and the spectral complex index of refraction of filamentous cyanobacteria. Filamentous heterocystous cyanobacterium Anabaena cylindrica was chosen as a model organism. Its filaments consisted of long chains of polydisperse cells. Their average mass scattering and absorption cross sections were measured...

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2015
Sushil Ojha Anupama Tandon Dipendra Shukla Neeraj Saraswat Shweta Joshi

Background: A prospective, interventional, comparative study carried out in rural population of northern India in western UP. Fungal keratitis studies available in literature were also reviewed. Methods: Patients presenting in eye OPD of UPRIMS & R Saifai, Etawah, UP with suspected microbial keratitis were recruited to the study. Corneal ulceration was defined as loss of corneal epithelium with...

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2015
Guillaume Morel Lieven Sterck Dominique Swennen Marina Marcet-Houben Djamila Onesime Anthony Levasseur Noémie Jacques Sandrine Mallet Arnaux Couloux Karine Labadie Joëlle Amselem Jean-Marie Beckerich Bernard Henrissat Yves Van de Peer Patrick Wincker Jean-Luc Souciet Toni Gabaldón Colin R. Tinsley Serge Casaregola

The evolutionary history of the characters underlying the adaptation of microorganisms to food and biotechnological uses is poorly understood. We undertook comparative genomics to investigate evolutionary relationships of the dairy yeast Geotrichum candidum within Saccharomycotina. Surprisingly, a remarkable proportion of genes showed discordant phylogenies, clustering with the filamentous fung...

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2017
Caroline B. Costa-Orlandi Janaina C. O. Sardi Nayla S. Pitangui Haroldo C. de Oliveira Liliana Scorzoni Mariana C. Galeane Kaila P. Medina-Alarcón Wanessa C. M. A. Melo Mônica Y. Marcelino Jaqueline D. Braz Ana Marisa Fusco-Almeida Maria José S. Mendes-Giannini

Biofilm formation is an important virulence factor for pathogenic fungi. Both yeasts and filamentous fungi can adhere to biotic and abiotic surfaces, developing into highly organized communities that are resistant to antimicrobials and environmental conditions. In recent years, new genera of fungi have been correlated with biofilm formation. However, Candida biofilms remain the most widely stud...

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2016
Lei Zhang Xihua Zhao Guoxiu Zhang Jiajia Zhang Xuedong Wang Suping Zhang Wei Wang Dongzhi Wei

Filamentous fungi play important roles in the production of plant cell-wall degrading enzymes. In recent years, homologous recombinant technologies have contributed significantly to improved enzymes production and system design of genetically manipulated strains. When introducing multiple gene deletions, we need a robust and convenient way to control selectable marker genes, especially when onl...

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Journal: :Applied and environmental microbiology 2005
Matthew J Church Cindy M Short Bethany D Jenkins David M Karl Jonathan P Zehr

Dinitrogen (N(2))-fixing microorganisms (diazotrophs) play important roles in ocean biogeochemistry and plankton productivity. In this study, we examined the presence and expression of specific planktonic nitrogenase genes (nifH) in the upper ocean (0 to 175 m) at Station ALOHA in the oligotrophic North Pacific Ocean. Clone libraries constructed from reverse-transcribed PCR-amplified mRNA revea...

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2018
Matheus Thomaz Nogueira Silva Lima Larissa Batista dos Santos Rafael Wesley Bastos Jacques Robert Nicoli Jacqueline Aparecida Takahashi

Major health challenges as the increasing number of cases of infections by antibiotic multiresistant microorganisms and cases of Alzheimer's disease have led to searching new control drugs. The present study aims to verify a new way of obtaining bioactive extracts from filamentous fungi with potential antimicrobial and acetylcholinesterase inhibitory activities, using epigenetic modulation to p...

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Journal: :Applied and environmental microbiology 2007
Matthew S Payne Mike R Hall Lindsay Sly David G Bourne

A thorough understanding of the microorganisms and pathogens associated with the larval stage of the tropical ornate rock lobster, Panulirus ornatus, is required to overcome disease outbreaks that currently block aquaculture attempts. This study used microscopy in addition to culture and molecularly based microbiological techniques to characterize the bacterial community associated with culture...

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2011
Mirian Pereira Rodarte Disney Ribeiro Dias Danielle Marques Vilela Rosane Freitas Schwan

One hundred forty-four microorganisms previously isolated from coffee fruit (Coffea arabica) were grown on casein agar to evaluate their proteolytic activities. Fifty percent of filamentous fungi, 52.5% of bacteria and 2.6% of yeasts were able to secrete proteases. Positive isolates were further examined in liquid culture for their protease activities by hydrolysis of casein at different pH val...

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2011
Marianne J Middelveen Raphael B Stricker

Bovine digital dermatitis is an emerging infectious disease that causes lameness, decreased milk production, and weight loss in livestock. Proliferative stages of bovine digital dermatitis demonstrate keratin filament formation in skin above the hooves in affected animals. The multifactorial etiology of digital dermatitis is not well understood, but spirochetes and other coinfecting microorgani...

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