Search results for "CHOD"

The use of glyphosate as the sole source of phosphorus or carbon for the selection of soil-borne fungal strains capable to degrade this herbicide

1997

Abstract The herbicide glyphosate was used as a selection agent for isolation of fungal strains capable to degrade phosphorus-to-carbon bond from standard sandy-clay soil. The studies have shown that the herbicide used in Martin medium as a sole source of phosphorus br carbon caused the decrease of the fungal population and substantially changed strain composition, thus selecting those which are able to degrade glyphosate.

Cork Taint of Wines: Role of the Filamentous Fungi Isolated from Cork in the Formation of 2,4,6-Trichloroanisole by O Methylation of 2,4,6-Trichlorop…

2002

ABSTRACT Cork taint is a musty or moldy off-odor in wine mainly caused by 2,4,6-trichloroanisole (2,4,6-TCA). We examined the role of 14 fungal strains isolated from cork samples in the production of 2,4,6-TCA by O methylation of 2,4,6-trichlorophenol (2,4,6-TCP). The fungal strains isolated belong to the genera Penicillium (four isolates); Trichoderma (two isolates); and Acremonium , Chrysonilia , Cladosporium , Fusarium , Mortierella , Mucor , Paecilomyces , and Verticillium (one isolate each). Eleven of these strains could produce 2,4,6-TCA when they were grown directly on cork in the presence of 2,4,6-TCP. The highest levels of bioconversion were carried out by the Trichoderma and Fusar…

The Role of the Internet in Overcoming Information Barriers: Implications for Exporting SMEs of the East African Community

2012

Small and medium-sized enterprises play a significant role in the East African Community, contributing highly to the national income and employing a significant number of people. Exportation provides a great opportunity for these enterprises to expand their businesses and improve their performance. However, they encounter a number of information- related barriers before and during exportation. Based on literature, this paper identifies these barriers and discusses how the internet could be used to reduce them. Based on the internet, international business and small business literature, the paper provides propositions and develops a model that will be useful for future studies in this area.

ASSESSMENT INTEGRATO NELLA DIPENDENZA DAL GIOCO D’AZZARDO: DALLA PSICODIAGNOSI AL NEUROIMAGING

Geni indotti da mercurio in Trichoderma harzianum

2011

Il lavoro della presente tesi ha riguardato lo studio della capacità di Trichoderma harzianum di crescere in presenza di mercurio. L’obiettivo principale era quello di comprendere i meccanismi biomolecolari coinvolti nella risposta metabolica allo stress indotto da mercurio in T. harzianum. E’ stato studiato l’accrescimento radiale su piastra in terreno colturale agarizzato in presenza di cadmio e mercurio e il peso secco del micelio del fungo accresciutosi in terreno colturale liquido nelle medesime condizioni. In entrambi i casi T. harzianum ha mostrato una maggiore capacità di crescita in presenza di mercurio. In un secondo tempo, la ricerca ha avuto come obiettivo quello di identificare…

Glen Philips: Western Australia's poet of the land and environment

2020

Artykuł ten nawiązuje do problematyki stosunkowo młodej gałęzi, jaka rozwinęła się w krytyce literackiej ostatnich dekad, tzw. ekokrytyki i jej obecności w literaturze australijskiej na przykładzie zachodnioaustralijskiego poety i krytyka Glena Philipsa (1936–), którego poezja jest ściśle związana ze środowiskiem naturalnym, w którym wzrastał i które zawsze inspirowało jego pisarstwo. Po skrótowym przedstawieniu historii ekokrytyki w USA, Europie i Australii autor, posługując się koncepcją pochodzenia dzieła sztuki niemieckiego filozofa Martina Heideggera, interpretuje wiersz Glena Philipsa pt. „In the Hollow of the Land”, widząc w nim egzemplifikację wspólnego rozumienia świata, jaki jest …

IκB kinase-driven nuclear factor-κB activation in patients with asthma and chronic obstructive pulmonary disease.

2011

Background Nuclear factor-κB (NF-κB) is a transcriptional factor of different inflammatory patterns involved in asthma and chronic obstructive pulmonary disease (COPD) that is tightly controlled by IκB kinase (IKK) complex. Objective We investigated the dysregulation of IKK-driven NF-κB activation in patients with asthma and COPD. Methods We assessed IKKα and IKKβ expression and activation, their regulation by glucocorticosteroids, and their involvement in IL-8 synthesis in PBMCs isolated from asthmatic patients, healthy smokers (HSs), patients with COPD, and control subjects. PBMCs from control subjects were stimulated with TNF-α and cigarette smoke extract in the presence or absence of fl…

Expression and Secretion of Barley Cysteine Endopeptidase B and Cellobiohydrolase I in Trichoderma reesei.

2006

Localization of expression and secretion of a heterologous barley cysteine endopeptidase (EPB) and the homologous main cellobiohydrolase I (CBHI) in a Trichoderma reesei transformant expressing both proteins were studied. The transformant was grown on solid medium with Avicel cellulose and lactose to induce the cbh1 promoter for the synthesis of the native CBHI and the recombinant barley protein linked to a cbh1 expression cassette. Differences in localization of expression between the two proteins were clearly indicated by in situ hybridization, indirect immunofluorescence, and immunoelectron microscopy. In young hyphae, native-size recombinant epb mRNA was localized to apical compartments…

Maturation of barley cysteine endopeptidase expressed in Trichoderma reesei is distorted by incomplete processing

2002

Maturation of barley cysteine endopeptidase B (EPB) in Trichoderma reesei was studied with metabolic inhibitors, Western blotting, and immuno microscopy. The inactive 42-kDa recombinant EPB proprotein, first detected in apical cells, was sequentially processed in a time-dependent manner to a secreted polypeptide of 38.5 kDa, and thereafter, to polypeptides of 37.5, 35.5, and 32 kDa exhibiting enzyme activity both in the hyphae and culture medium. The sizes of the different forms of recombinant EPB were in accordance with molecular masses calculated from the deduced amino acid sequence, assuming cleavage at four putative Kex2p sites present in the 42-kDa proprotein. Both the liquid and the z…

Global distributions of diazotrophs abundance and biomass - Depth integrated values computed from a collection of source datasets - Contribution to t…

2013

The MAREDAT atlas covers 11 types of plankton, ranging in size from bacteria to jellyfish. Together, these plankton groups determine the health and productivity of the global ocean and play a vital role in the global carbon cycle. Working within a uniform and consistent spatial and depth grid (map) of the global ocean, the researchers compiled thousands and tens of thousands of data points to identify regions of plankton abundance and scarcity as well as areas of data abundance and scarcity. At many of the grid points, the MAREDAT team accomplished the difficult conversion from abundance (numbers of organisms) to biomass (carbon mass of organisms). The MAREDAT atlas provides an unprecedente…