Results 11 to 20 of about 4,519 (216)

New Cembranoid Diterpenes from the Cultured Octocoral Nephthea columnaris

open access: yesMolecules, 2015
Two new 15-hydroxycembranoid diterpenes, 2β-hydroxy-7β,8α-epoxynephthenol (1) and 2β-hydroxy-11α,12β-epoxynephthenol (2), were isolated from extracts of the octocoral Nephthea columnaris along with a new natural cembrane, epoxynephthenol (3) and a known ...
Mei-Chin Lu   +2 more
exaly   +3 more sources

Genomic evidence of genetic diversity and functional evolution in Flavobacterium columnare [PDF]

open access: yesFrontiers in Microbiology, 2023
Flavobacterium columnare is the causative agent of columnaris disease in freshwater fish. Columnaris disease can cause heavy economic losses in aquaculture. In this study, whole-genome sequencing was used to characterize this pathogen. F.
Rui Han   +13 more
doaj   +2 more sources

Development of the genetic classification of Aegilops columnaris Zhuk. chromosomes based on the analysis of introgression lines Triticum aestivum×Ae. columnaris

open access: yesВавиловский журнал генетики и селекции, 2017
Aegilops columnaris Zhuk. is a potential source of new genes for wheat improvement. However, this species has not yet been used in practical breeding.
A. A. Shishkina   +5 more
doaj   +3 more sources

New Anti-Inflammatory Cembranes from the Cultured Soft Coral Nephthea columnaris

open access: yesMarine Drugs, 2015
Two new cembranes, columnariols A (1) and B (2), were isolated from the cultured soft coral Nephthea columnaris. The structures of cembranes 1 and 2 were elucidated by spectroscopic methods.
Chun-Sung Sung   +2 more
exaly   +3 more sources

The fine structure of Chondrococcus columnaris. 3. The surface layers of Chondrococcus columnaris. [PDF]

open access: yesThe Journal of cell biology, 1968
An electron microscope study of the myxobacterium Chondrococcus columnaris has revealed the following structures in the peripheral layers of the cells: (1) a plasma membrane, (2) a single dense layer (probably the mucopeptide component of the cell wall), (3) peripheral fibrils, (4) an outer membrane, and (5) a material coating the surfaces of the cells
J L, Pate, E J, Ordal
  +16 more sources

Molecular Characterization and Defense Functions of the Nile Tilapia (Oreochromis niloticus) DnaJ B9b and DnaJ C3a Genes in Response to Pathogenic Bacteria under High-Temperature Stress Conditions

open access: yesBiomolecules, 2021
DnaJ proteins or heat shock protein 40s (HSP40s) form one of the largest heat shock protein families. In this study, 2 cDNAs encoding Nile tilapia (Oreochromis niloticus) DnaJ proteins (On-DnaJ B9b and On-DnaJ C3a) were successfully cloned and ...
Prapansak Srisapoome   +2 more
doaj   +1 more source

Evaluating Stress-Mediated Microbial Pathogenesis in Golden Shiners, Notemigonus crysoleucas

open access: yesFrontiers in Physiology, 2022
Flavobacterium covae (columnaris) is a microbial pathogen of the Golden Shiner (Notemigonus crysoleucas), a principal bait species. We investigated the effects of density and water temperature on the survival of fish subjected to a columnaris challenge ...
Sindhu Kaimal   +5 more
doaj   +1 more source

Chromosome and Molecular Analyses Reveal Significant Karyotype Diversity and Provide New Evidence on the Origin of Aegilops columnaris

open access: yesPlants, 2021
Aegilops columnaris Zhuk. is tetraploid grass species (2n = 4x = 28, UcUcXcXc) closely related to Ae. neglecta and growing in Western Asia and a western part of the Fertile Crescent. Genetic diversity of Ae. columnaris was assessed using C-banding, FISH,
Ekaterina D. Badaeva   +7 more
doaj   +1 more source

Cortisol directly impacts Flavobacterium columnare in vitro growth characteristics [PDF]

open access: yes, 2016
Teleost fish faced with stressful stimuli launch an endocrine stress response through activation of the hypothalamicpituitary-interrenal axis to release glucocorticoids, in particular cortisol, into the blood. For the majority of bacterial fish pathogens,
Aerts, Johan   +5 more
core   +6 more sources

Pleistocene origin and colonization history of Lobelia columnaris Hook. f. (Campanulaceae: Lobelioideae) across sky islands of West Central Africa

open access: yesEcology and Evolution, 2021
We aimed to infer ancestral area and historical colonization of Lobelia columnaris in the sky islands of Bioko and Cameroon through dated phylogeny using chloroplast genomes.
Miguel A. Pérez‐Pérez, Wen‐Bin Yu
doaj   +1 more source

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