4 research outputs found
Naar een geïntegreerde interventie in de organisatie van de informatievoorziening
Binnen het managementdomein van informatievoorziening is een aantal disciplines ontstaan, allen gericht op een optimale inzet van ICT in organisaties. Zo tref je ook binnen het Ngi de afdelingen Informatiemanagement, Architectuur en Governance aan, die elkaar inhoudelijk lijken te overlappen. Deze disciplines kunnen elkaar echter ook versterken als ze tot een geïntegreerde interventie leiden in de werkpraktijk van organisatie en informatie. In onderstaande, overigens fictieve casus laten de auteurs zien dat de disciplines weliswaar een specifiek perspectief hanteren, maar ook complementair zijn en daarmee een sterk interventiemiddel vormen bij ICT-problemen in organisaties
Biodiversity in the Cladosporium herbarum complex (Davidiellaceae, Capnodiales), with standardisation of methods for Cladosporium taxonomy and diagnostics
The Cladosporium herbarum complex comprises five species for which
Davidiella teleomorphs are known. Cladosporium herbarum s.
str. (D. tassiana), C. macrocarpum (D.
macrocarpa) and C. bruhnei (D. allicina) are
distinguishable by having conidia of different width, and by teleomorph
characters. Davidiella variabile is introduced as teleomorph of
C. variabile, a homothallic species occurring on Spinacia,
and D. macrospora is known to be the teleomorph of C. iridis
on Iris spp. The C. herbarum complex combines low molecular
distance with a high degree of clonal or inbreeding diversity. Entities differ
from each other by multilocus sequence data and by phenetic differences, and
thus can be interpreted to represent individual taxa. Isolates of the C.
herbarum complex that were formerly associated with opportunistic human
infections, cluster with C. bruhnei. Several species are newly
described from hypersaline water, namely C. ramotenellum, C.
tenellum, C. subinflatum, and C. herbaroides.
Cladosporium pseudiridis collected from Iris sp. in New
Zealand, is also a member of this species complex and shown to be distinct
from C. iridis that occurs on this host elsewhere in the world. A
further new species from New Zealand is C. sinuosum on Fuchsia
excorticata. Cladosporium antarcticum is newly described from a
lichen, Caloplaca regalis, collected in Antarctica, and C.
subtilissimum from grape berries in the U.S.A., while the new combination
C. ossifragi, the oldest valid name of the Cladosporium
known from Narthecium in Europe, is proposed. Standard protocols and
media are herewith proposed to facilitate future morphological examination of
Cladosporium spp. in culture, and neotypes or epitypes are proposed
for all species treated
Aspergillus vadensis, a new species of the group of black Aspergilli
A strain from the group of black Aspergilli was analysed in detail to determine the species to which it belongs. A detailed analysis of morphology, RFLP patterns and metabolite profiles was carried out. In addition, a phylogenetic tree was constructed for the black Aspergilli using the ITS and the -tubulin sequences of the individual strains. The new species differs by its poor growth on glycerol and galacturonate and its unique extrolite profile consisting of aurasperone B, nigragillin, asperazine and kotanins. RFLP analysis using three genes as probes also resulted in a unique pattern. These data indicate that the strain was closely related but not identical to Aspergillus foetidus, Aspergillus niger and Aspergillus tubingensis. It was therefore designated as a novel species and named Aspergillus vadensi