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2014, The Korean Journal of Mycology
New Phytologist
Nuclear ribosomal sequence analysis of Oidiodendron: towards a redefinition of ecologically relevant species2002 •
• Nuclear ribosomal sequence analysis was performed to investigate delimitation of common Oidiodendron species comprising endomycorrhizal symbionts and close associates of ectomycorrhizal plants.• Neighbour-joining, maximum likelihood and parsimony analyses were used to compare 35 ribosomal DNA (internal transcribed spacer (ITS) and 5.8S) sequences (including sequences available in databases) from 15 putative species.• Oidiodendron citrinum formed a monophyletic group nested within O. maius, whereas O. tenuissimum and O. griseum did not appear either as distinct groups or as a single complex. Pairwise nucleotide divergence values between O. citrinum and O. maius were very low and comparable to intraspecific values obtained for both species; values for O. griseum and O. tenuissimum, although higher, overlapped those observed at the intraspecific level for the two species.• Molecular data indicate that O. maius and O. citrinum, which were described as distinct, though related species, could be moved to a subspecific level; however, the delimitation of O. griseum and O. tenuissimum is still open to question. Taxonomic rank assignment to groups determined from sequence data analysis is discussed.• Nuclear ribosomal sequence analysis was performed to investigate delimitation of common Oidiodendron species comprising endomycorrhizal symbionts and close associates of ectomycorrhizal plants.• Neighbour-joining, maximum likelihood and parsimony analyses were used to compare 35 ribosomal DNA (internal transcribed spacer (ITS) and 5.8S) sequences (including sequences available in databases) from 15 putative species.• Oidiodendron citrinum formed a monophyletic group nested within O. maius, whereas O. tenuissimum and O. griseum did not appear either as distinct groups or as a single complex. Pairwise nucleotide divergence values between O. citrinum and O. maius were very low and comparable to intraspecific values obtained for both species; values for O. griseum and O. tenuissimum, although higher, overlapped those observed at the intraspecific level for the two species.• Molecular data indicate that O. maius and O. citrinum, which were described as distinct, though related species, could be moved to a subspecific level; however, the delimitation of O. griseum and O. tenuissimum is still open to question. Taxonomic rank assignment to groups determined from sequence data analysis is discussed.
Powdery mildew was observed on Ocimum basilicum, Crotalaria sp. and Brassica pekinensis. Light and scanning electron microscopy revealed that all the pathogens belonged to Oidium subgenus Pseudoidium (Erysiphe sp.). Molecular phylogenetic analyses based on the 28S rDNA, including the domains D1 and D2, and ITS region, including the 5.8S rDNA, also supported the identification based on morphological characteristics.
Fems Microbiology Letters
A new species of Pythium with ornamented oogonia: morphology, taxonomy, internal transcribed spacer region of its ribosomal RNA, and its comparison with related species2006 •
Pythium spiculum sp. nov. was isolated from soil samples taken in a vineyard in the Burgundian region of France and from different locations in Spain and Portugal. The oomycete has spiny oogonia and does not sporulate readily. It resembles Pythium mamillatum Meurs, but has its own distinguishing characteristics. It also exhibits sickle-shaped as well as spherical appressoria which at times are associated with sex organs like those found in Pythium abappressorium Paulitz and Pythium contiguanum Paul. Sequencing of the internal transcribed spacer region of its nuclear ribosomal DNA and a close look at its morphological characters have now enabled us to describe it as a new species. The internal transcribed spacer region of its rRNA gene sequence is comprised of 945 bases. This oomycete is closely related to the members that form ornamented or spiny oogonia like Pythiummamillatum, Pythium spinosum and Pythium irregulare but also with those producing smooth-walled oogonia like Pythium paroecandrum, Pythium sylvaticum and Pythium cylindrosporum. Taxonomic description of this new species, its comparison with related oomycetes, the sequence of the internal transcribed spacer region of its rRNA gene and the phylogenetic tree, are given here.
2014 •
Journal of Genetics and Genomics
Phylogenetic Analysis of the Sequences of rDNA Internal Transcribed Spacer (ITS) of Phytophthora sojae2007 •
2013 •
International Journal of Cardiology
Role of cell adhesion molecules and oxidative stress in essential hypertension in Asian Indians2009 •
American journal of respiratory cell and molecular biology
Effect of Prenatal versus Postnatal Vitamin D Deficiency on Pulmonary Structure and Function in Mice2016 •
CardioVascular Journal of Africa
Natural cocoa inhibits maternal hypercholesterolaemiainduced atherogenesis in rabbit pups2019 •
2008 •
European Scientific Journal
The Prediction Of The Influence Of The National Orientation Of Teachers’ Personality On The National Identity Of Pupils. The Case Of Lithuania2016 •
2022 •
The Astrophysical Journal
Joint Analysis of Near-Infrared Properties and Surface Brightness Fluctuations of Large Magellanic Cloud Star Clusters2009 •
ZIRAA'AH MAJALAH ILMIAH PERTANIAN
KUALITAS KIMIA DAGING KERBAU KALIMANTAN SELATAN (Buballus bubalis) PADA EKOSISTEM PEMELIHARAAN BERBEDA2022 •
Neural Computing and Applications
Bi-objective optimization approaches to many-to-many hub location routing with distance balancing and hard time window2019 •
International Journal of Electrical Power & Energy Systems
Hybrid sensorless permanent magnet synchronous machine four quadrant drive based on direct matrix converter2013 •
2013 •
Personality and Individual Differences
Attentional resources and intelligence: A disappearing link1989 •
Journal of emerging technologies and innovative research
The influence of shear wall spot in opposing earthquake2021 •
Tradicija ir dabartis
Специфика учебного процесса на Кафедре этнологии Львовского университета в 1924–1939 годах2017 •
Revue française de pédagogie
Les interactions individualisées maître-élève : une comparaison entre la France et le Luxembourg2010 •
Informes de la Construcción
CAAD in the preservation of historic buildings1996 •
Western Journal of Emergency Medicine
Trauma-informed Care Interventions in Emergency Medicine: A Systematic ReviewPhysical Review D
Relativistic theory of elastic deformable astronomical bodies: Perturbation equations in rotating spherical coordinates and junction conditions2003 •
European Archives of Psychiatry and Clinical Neuroscience
Age–period–cohort analysis of Swiss suicide data, 1881–20002005 •