Sordariomycetes is one of the largest classes of Ascomycota that comprises a highly diverse range of fungi mainly characterized by perithecial ascomata and inoperculate unitunicate asci. Freshwater ...Sordariomycetes play an important role in ecosystems and some of them have the potential to produce bioactive compounds. This study documents and reviews the freshwater Sordariomycetes, which is one of the largest and important groups of fungi in aquatic habitats. Based on evidence from DNA sequence data and morphology, we introduce a new order Distoseptisporales, two new families, viz. Ceratosphaeriaceae and Triadelphiaceae, three new genera, viz.
Aquafiliformis
,
Dematiosporium
and
Neospadicoides
, 47 new species, viz.
Acrodictys fluminicola
,
Aquafiliformis lignicola
,
Aquapteridospora fusiformis
,
Arthrinium aquaticum
,
Ascosacculus fusiformis
,
Atractospora aquatica
,
Barbatosphaeria lignicola
,
Ceratosphaeria aquatica
,
C. lignicola
,
Chaetosphaeria aquatica
,
Ch. catenulata
,
Ch. guttulata
,
Ch. submersa
,
Codinaea yunnanensis
,
Conioscypha aquatica
,
C. submersa
,
Cordana aquatica
,
C. lignicola
,
Cosmospora aquatica
,
Cylindrotrichum submersum
,
Dematiosporium aquaticum
,
Dictyochaeta cangshanensis
,
D. ellipsoidea
,
D. lignicola
,
D. submersa
,
Distoseptispora appendiculata
,
D. lignicola
,
D. neorostrata
,
D. obclavata
,
Hypoxylon lignicola
,
Lepteutypa aquatica
,
Myrmecridium aquaticum
,
Neospadicoides aquatica
,
N. lignicola
,
N. yunnanensis
,
Ophioceras submersum
,
Peroneutypa lignicola
,
Phaeoisaria filiformis
,
Pseudostanjehughesia lignicola
,
Rhodoveronaea aquatica
,
Seiridium aquaticum
,
Sporidesmiella aquatica
,
Sporidesmium lageniforme
,
S. lignicola
,
Tainosphaeria lunata
,
T. obclavata
,
Wongia aquatica
, two new combinations, viz.
Acrodictys aquatica
,
Cylindrotrichum aquaticum
, and 9 new records, viz.
Chaetomium globosum
,
Chaetosphaeria cubensis
,
Ch. myriocarpa
,
Cordana abramovii
,
Co. terrestris
,
Cuspidatispora xiphiago
,
Sporidesmiella hyalosperma
,
Stachybotrys chartarum
,
S. chlorohalonata
. A comprehensive classification of the freshwater Sordariomycetes is presented based on updated literature. Phylogenetic inferences based on DNA sequence analyses of a combined LSU, SSU, RPB2 and TEF1α dataset comprising species of freshwater Sordariomycetes are provided. Detailed information including their habitats distribution, diversity, holotype, specimens collected and classification are provided.
This study deals with an extensive taxonomic reevaluation focusing on phylogenetic relationships and morphological characterization of Tubeufiales, especially those helicosporous hyphomycetes which ...are difficult to identify. Based on evidence from DNA sequence data and morphology, we introduce 13 new genera in the family Tubeufiaceae,
viz. Acanthotubeufia
,
Dematiohelicoma
,
Dematiohelicomyces
,
Dematiohelicosporum
,
Dematiotubeufia
,
Helicoarctatus
,
Helicohyalinum
,
Helicotruncatum
,
Neochlamydotubeufia
,
Neohelicoma
,
Pleurohelicosporium
,
Pseudohelicomyces
and
Pseudohelicoon
; transfer
Chaetosphaerulina
from Dothideomycetes genera
incertae sedis
, and
Artocarpomyces
and
Helicodochium
from Ascomycetes genera
incertae sedis
into Tubeufiaceae; introduce 52 new species,
viz. Berkleasmium fusiforme
,
B. longisporum
,
Chlamydotubeufia cylindrica
,
Dematiohelicosporum guttulatum
,
Helicoarctatus aquaticus
,
Helicodochium aquaticum
,
Helicohyalinum infundibulum
,
Helicoma aquaticum
,
H. brunneisporum
,
H. cocois
,
H. rufum
,
H. fusiforme
,
H. longisporum
,
H. multiseptatum
,
H. rubriappendiculatum
,
H. septoconstrictum
,
H. tectonae
,
Helicomyces hyalosporus
,
Helicosporium aquaticum
,
H. flavisporum
,
H. setiferum
,
H. vesicarium
,
H. viridiflavum
,
Neochlamydotubeufia fusiformis
,
Neohelicomyces hyalosporus
,
Neohelicosporium acrogenisporum
,
N. astrictum
,
N. ellipsoideum
,
N. irregulare
,
N. krabiense
,
N. laxisporum
,
N. ovoideum
,
Pleurohelicosporium parvisporum
,
Pseudohelicomyces aquaticus
,
P. hyalosporus
,
Tubeufia abundata
,
T. bambusicola
,
T. brevis
,
T. brunnea
,
T. chlamydospora
,
T. dictyospora
,
T. eccentrica
,
T. fangchengensis
,
T. hechiensis
,
T. inaequalis
,
T. krabiensis
,
T. rubra
,
T. sessilis
,
T. sympodihylospora
,
T. sympodilaxispora
,
T. taiwanensis
and
T. tratensis
; provide 43 new combinations,
viz. Acanthohelicospora guianensis
,
Acanthotubeufia filiforme
,
Berkleasmium aquatica
,
B. guangxiense
,
B. latisporum
,
B. thailandicum
,
Dematiohelicoma perelegans
,
D. pulchrum
,
Dematiohelicomyces helicosporus
,
Dematiotubeufia chiangraiensis
,
Helicohyalinum aquaticum
,
Helicoma elinorae
,
H. gigasporum
,
H. hongkongense
,
H. linderi
,
H. nematosporum
,
H. pannosum
,
H. serpentinum
,
Helicomyces chiayiensis
,
Helicotruncatum palmigenum
,
Neochlamydotubeufia khunkornensis
,
Neohelicoma fagacearum
,
Neohelicomyces pallidus
,
Neohelicosporium abuense
,
N. aurantiellum
,
N. griseum
,
N. morganii
,
N. myrtacearum
,
N. nizamabadense
,
N. sympodiophorum
,
N. taiwanense
,
N. vesiculiferum
,
Pseudohelicomyces indicus
,
P. paludosus
,
P. talbotii
,
Pseudohelicoon gigantisporum
,
P. subglobosum
,
Tubeufia dentophora
,
T. geniculata
,
T. lilliputea
,
T. machaerinae
,
T. sympodiophora
and
T. xylophila
; introduce 16 new records,
viz. Dictyospora thailandica
,
Helicomyces colligatus
,
H. torquatus
,
Neohelicosporium guangxiense
,
N. hyalosporum
,
N. parvisporum
,
Thaxteriellopsis lignicola
,
Tubeufia aquatica
,
T. chiangmaiensis
,
T. cylindrothecia
,
T. filiformis
,
T. guangxiensis
,
T. laxispora
,
T. parvispora
,
T. roseohelicospora
and
T. tectonae
. The taxonomy of
Helicoma
,
Helicomyces
and
Helicosporium
is revisited based on phylogenetic analyses and morphological evidence.
Neorhamphoria
is transferred to Bezerromycetaceae. Three species are excluded from the genus
Chlamydotubeufia
, twelve species from
Helicoma
, four species from
Helicomyces
, 25 species from
Helicosporium
, six species from
Neoacanthostigma
and one species from
Tubeufia
. A multi-gene phylogenetic tree based on maximum likelihood and Bayesian analyses of ITS, LSU, RPB2 and TEF1α sequence data of species of Tubeufiales is provided. Detailed descriptions and illustrations are provided, as well as the morphological comparison with similar taxa are explored. The checklist of accepted Tubeufiales species and re-organised Tubeufiales species are provided.
With the rapid development of modern microelectronic devices, high-performance thermal interface polymer materials are of ever-rising importance. However, polymers commonly have very low intrinsic ...thermal conductivities, thence, introducing the thermal conductive nanofillers was considered to be one of the efficiently ways to enhance the thermal conductivity. The construction of effective thermal conductive pathway is essential for the thermal conductivity of polymer-based composites. In this context, toward the common functionalized boron nitride nanosheet (f-BNNS)/polymer composites, we found that the introduction of a very low amount of one-dimensional (1D) copper nanowires (CuNWs) can bring significantly further improvement in thermal conductivity. The in-plane thermal conductivity of f-BNNS-CuNWs/poly (vinyl alcohol) (PVA) composite film with 0.1 wt% of CuNWs can achieved at ~ 6.5 W/(m•K) which is ~1.76 times as high as that of f-BNNS/PVA composite film at the same filling content of f-BNNS. The use of high-aspect-ratio CuNWs is beneficial to the formation of random bridges or networks with conductive f-BNNS and facilitates the phonon transfer leading to high thermal conductivity. SEM images demonstrated that the adjacent 2D f-BNNS plates were in tandem with 1D CuNWs. The obtained results offer a facile and feasible way to design and fabricate the highly thermal-conductive polymer composites as advanced thermal interface polymer composite materials.
Display omitted
•f-BNNS and CuNWs were introduced into the PVA matrix together.•A continuous heat conductive network of CuNWs and f-BNNS was formed.•There are strong interface interactions between f-BNNS and CuNWs.•A low content of CuNWs brings great improvement on thermal conductivity.
In this work, we successfully prepared multifunctional boron nitride nanosheets (BNNS)/polyvinyl alcohol (PVA) nanofiber membranes. Using sulfanilic acid (SA) as a medium, hexagonal boron nitride ...(h-BN) were exfoliated into SA-functionalized BNNS through dry ball-milling process followed with liquid-phase exfoliation based on Lewis acid-base interaction. The f-BNNS/PVA composite nanofiber membranes with different loading amounts of f-BNNS were prepared through electrospinning. The results demonstrated the electrospun f-BNNS/PVA composite nanofiber membranes show high mechanical properties and thermal conductivities. The yield and ultimate tensile strengths of f-BNNS/PVA composite nanofiber membrane at 5 wt% loading amount can reach ∼8.56 and ∼11.37 MPa. Meantime, the thermal conductivity of f-BNNS/PVA composite nanofiber membrane with 10 wt% loading amounts of f-BNNS is ∼0.7328 W/(m•K), almost 6.47 times higher than that of neat PVA membrane. Besides, the f-BNNS/PVA composite nanofiber membrane can also be used as a filtration membrane for fast malachite green (MG) absorption and separation of MG and rhodamine B dyes.
Display omitted
•Sulfanilic acid facilitates the exfoliation and functionalization of boron nitride nanosheets.•Electrospun functionalized boron nitride nanosheet/PVA nanofiber membranes were prepared.•The membrane processes high mechanical property and thermal conductivity.•The membrane can be used for fast separating the mixed dye of malachite green and rhodamine B.
has a widespread distribution occurring in various substrates (e.g., air, soil debris, plants, lichens, marine algae and even human tissues). It is characterized by the basauxic conidiogenesis in the ...asexual morph, with apiospores in the sexual morph. In this study, seventeen isolates of
were collected in China. Based on their morphology and phylogenetic characterization, four new species (
,
,
, and
) are described and seven known species (
,
,
,
,
,
and
) are identified, of which the sexual morph of three species (
,
and
) and asexual morph of
are reported for the first time. The detailed descriptions, illustrations and comparisons with related taxa of these new collections are provided. Phylogenetic analyses of combined ITS, LSU, TUB2, and TEF sequence data support their placements in the genus
and justify the new species establishments and identifications of known species.
Recently, polymer-based thermal management materials have been receiving more and more attention. Always, introducing the thermal conductive nanofillers to prepare polymer composites is one of the ...best ways to improve the thermal conductivity (TC) of the polymer. However, the simple and effective way to improve thermal conductivity by increasing fillers loading amount often brings the decrease of mechanical property resulted by agglomeration. Herein, we combined 2D transition metal carbides (Ti3C2Tx), and functionalized boron nitride nanosheets (f-BNNS) together for simultaneously enhancing the TC and mechanical property of polybenzimidazole (PBI)-based composites. As the loading amounts of f-BNNS-Ti3C2Tx reached 25 wt% (f-BNNS: 12.5 wt%, Ti3C2Tx: 12.5 wt%), the in-plane and through-plane TCs of the f-BNNS-Ti3C2Tx/PBI composite film reach ~5.06 and ~3.44 W m−1 K−1 which are ~12.05 and ~8.19 times higher than those of neat PBI film. More notably, the synergistic effect of interspace-filling and bridging between f-BNNS and Ti3C2Tx also prevents the agglomeration and facilitates the improvement of mechanical property, even at a high loading amount of 25 wt%, the yield and ultimate tensile strengths of f-BNNS-Ti3C2Tx/PBI composite film are ~175.5 and ~189.6 MPa with increases of ~61.1% and ~39.8% compared to those of neat PBI.
Display omitted
•f-BNNS and Ti3C2Tx were introduced into a PBI matrix together.•f-BNNS-Ti3C2Tx/PBI exhibits high thermal conductivity and good mechanical property.•There are strong interactions among f-BNNS, Ti3C2Tx, and PBI.•The synergistic effect between f-BNNS and Ti3C2Tx favors the improvement of thermal conductivity and mechanical property.
Thermostability of β-glucosidase was enhanced by family shuffling, site saturation mutagenesis, and site-directed mutagenesis. Family shuffling was carried out based on β-glucosidase BglC from ...Thermobifida fusca and β-glucosidase BglB from Paebibacillus polymxyxa with the help of synthetic primers. High-throughput screening revealed mutants with higher thermostability than both parental enzymes. The most thermostable mutant VM2 containing three key amino acid changes in L444Y/G447S/A433V had a 144-fold increase in half-life of inactivation as compared to the parental enzyme BglC. The mutant VM2 showed 28% and 94% increase in kcat towards p-nitrophenyl-β-d-glucopyranoside (pNPG) and cellobiose, respectively. The mutant with enhanced stability would facilitate the recycle of β-glucosidase in the bioconversion of cellulosic biomass.
The genus Castanediella Lin, Chuan-Gen; J Bhat, Darbhe; Liu, Jian-Kui ...
MycoKeys (Sofia, Bulgaria),
04/2019, Letnik:
51
Journal Article
Recenzirano
Odprti dostop
Two new species,
and
, are described, illustrated and compared with other
taxa. Evidence for the new species is provided by morphological comparison and sequence data analyses.
can be distinguished ...from other
species by the short hyaline conidiophores and fusiform, aseptate hyaline conidia, while
differs from other
species by its unbranched conidiophores and fusiform, curved, 0-1-sepatate, hyaline conidia. Phylogenetic analysis of combined ITS and LSU sequence data was carried out to determine the phylogenetic placement of the species. A synopsis of hitherto described
species is provided. In addition,
is also compared with morphologically similar-looking genera such as
,
,
,
,
and
.
Introduction
The venous network of the brainstem is complex and significant. Susceptibility-weighted imaging (SWI) is a practical technique which is sensitive to veins, especially tiny veins. Our ...purpose of this study was to evaluate the visualization of the venous network of brainstem by using SWI at 3.0 T.
Methods
The occurrence rate of each superficial veins of brainstem was evaluated by using SWI on a 3 T MR imaging system in 60 volunteers. The diameter of the lateral mesencephalic vein and peduncular vein were measured by SWI using the reconstructed mIP images in the sagittal view. And the outflow of the veins of brainstem were studied and described according to the reconstructed images.
Results
The median anterior pontomesencephalic vein, median anterior medullary vein, peduncular vein, right vein of the pontomesencephalic sulcus, and right lateral anterior pontomesencephalic vein were detected in all the subjects (100 %). The outer diameter of peduncular vein was 1.38 ± 0.26 mm (range 0.8–1.8 mm). The lateral mesencephalic vein was found in 75 % of the subjects and the mean outer diameter was 0.81 ± 0.2 mm (range 0.5–1.2 mm). The inner veins of mesencephalon were found by using SWI.
Conclusion
The venous networks around the brain stem can be visualized by SWI clearly. This result can not only provide data for anatomical study, but also may be available for the surgical planning in the infratentorial region.
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