Results 71 to 80 of about 13,759 (153)

Identification of genetic modules mediating the Jekyll and Hyde interaction of Dinoroseobacter shibae with the dinoflagellate Prorocentrum minimum

Frontiers in Microbiology, 2015
The co-cultivation of the alphaproteobacterium Dinoroseobacter shibae with the dinoflagellate Prorocentrum minimum is characterized by a mutualistic phase followed by a pathogenic phase in which the bacterium kills aging algae.
Hui eWang, Jürgen eTomasch, Victoria eMichael, Sabin eBhuju, Michael eJarek, Jörn ePetersen, Irene eWagner-Doebler   +6 more
doaj   +1 more source

Emotions matter—Targeting adult learners' achievement emotions in online instructional settings: Systematic literature review

Review of Education, Volume 13, Issue 3, December 2025.
Abstract Online learning, despite its growing popularity for its comparatively effortless access and convenience, has its respective sets of challenges. High rates of dropout, often linked to the solitary nature of online learning and difficulties with self‐regulated learning, underscore the need for well‐planned emotional support measures.
Natalia Edisherashvili, Katrin Saks, Külli Kallas, Margus Pedaste, Äli Leijen   +4 more
wiley   +1 more source

Nomenclature and typification of sectional names in Carex (Cyperaceae)

TAXON, Volume 74, Issue 6, Page 1543-1568, December 2025.
Abstract This paper presents an updated survey of all the published names at the section rank in Carex and its formerly accepted satellite genera. We included related names at other ranks when relevant. We address validity, legitimacy, priority, typification, and – if relevant – synonymy.
Pedro Jiménez‐Mejías, James L. Reveal, Santiago Martín‐Bravo, Juan Carlos Zamora, Isabel Larridon, Anton A. Reznicek, Robert F.C. Naczi   +6 more
wiley   +1 more source

The Early Development of the Blue‐Eye Cichlid, Cryptoheros spilurus (Cichliformes: Cichlidae)

Evolution &Development, Volume 27, Issue 4, December 2025.
We document the early development of Cryptoheros spilurus, highlighting rapid cranial differentiation, sensory organ formation, and fin development. Ontogenetic allometry and ultrastructural traits reveal functional adaptations for early foraging and locomotion, offering insights into ecological success and the developmental basis of cichlid ...
Rubén Alonso Contreras‐Tapia, Jairo Arroyave, Gabriela Garza‐Mouriño, María Elena Castellanos‐Páez, Marcela Ivonne Benítez‐Díaz Mirón, Wilfredo A. Matamoros   +5 more
wiley   +1 more source

Proteolytic Regulation of CtrA, the Master Regulator of Cell Cycle in Caulobacter crescentus

Cell cycle progression in Caulobacter crescentus depends on the master regulator, CtrA. During the transition from swarmer to stalk cell (G1 to S phase), CtrA is degraded by the AAA+ protease ClpXP and levels rise again in the predivisional stage.
Cantin, Amber M.
core   +1 more source

CPOP1 is a key enzyme required for nodule microenvironment control and successful symbiotic nitrogen fixation in Lotus japonicus

Journal of Integrative Plant Biology, Volume 67, Issue 12, Page 3167-3181, December 2025.
The enzyme coproporphyrinogen III oxidase plastid related 1 (CPOP1) creates a low‐oxygen nodule environment for nitrogen fixation within nodules of Lotus japonicus. CPOP1 makes heme, which helps control oxygen, and acts in infected cells; its knockout raises oxygen levels, suppresses nitrogen‐fixing enzyme activity, and halts nitrogen fixation ...
Yu‐Fang Tian, Yu Luo, Qi‐Min Li, Zhi‐Qin Zhang, Ya‐Long Guo, Wei‐Cai Yang   +5 more
wiley   +1 more source

Cu or Fe‐Exchanged Natural Clinoptilolite as Sustainable Light‐Assisted Catalyst for Water Disinfection at Near Neutral pH

ChemPlusChem, Volume 90, Issue 11, November 10, 2025.
Fe and Cu exchanged natural clinoptilolites are evaluated as heterogeneous photo‐Fenton catalysts for water disinfection under visible light, using E. coli as a model pathogen. Bacterial detection limit is reached in 2 h, with no regrowth observed.
Paula Prieto‐Laria, Pilar Fernández‐Ibáñez, A. Rabdel Ruiz‐Salvador, Inés Canosa, Amando Flores, Carlos Salameh, José Enrique Domínguez‐Santos, Nuria Ofelia Núñez, Menta Ballesteros, Tania Farías   +9 more
wiley   +1 more source

CtrA Controls Cell Division and Outer Membrane Composition of the Pathogen Brucella abortus

, 2017
Brucella abortus is a pathogen infecting cattle, able to survive, traffic, and proliferate inside host cells. It belongs to the Alphaproteobacteria, a phylogenetic group comprising bacteria with free living, symbiotic, and pathogenic lifestyles.
Biondi, Emanuele G, Poncin, Katy; id_orcid, Rappez, Luca, Vassen, Victoria, Letesson, Jean-Jacques; id_orcid, De Bolle, Xavier; id_orcid, Ong, Thi Anh Phuong, Willemart, Kevin, Fioravanti, Antonella, Francis, Nayla   +9 more
core   +1 more source

The Role and Regulation of the Response Regulator CtrA in Sinorhizobium Meliloti Cell Cycle Regulation

, 2015
Sinorhizobium meliloti is an Alphaproteobacteria that grows as a free-living organism in soil or as a symbiont within legumes. As a free-living organism, S. meliloti undergoes an asymmetrical cell division with once-and-only-once DNA replication per cell
Schallies, Karla B.
core   +1 more source

Performance Comparison of Two In-House PCR Methods for Detecting Neisseria meningitidis in Asymptomatic Carriers and Antimicrobial Resistance Profiling

Diagnostics
Background/Objective: Bacteriological culture has been a widely used method for the detection of meningococcus, but it has low sensitivity and a long turnaround time.
Mekonnen Atimew, Melaku Yidenekachew, Marchegn Yimer, Ashenafi Alemu, Dawit Hailu Alemayehu, Tadelo Wondimagegn, Fitsumbiran Tajebe, Gashaw Adane, Tesfaye Gelanew, Getachew Tesfaye Beyene   +9 more
doaj   +1 more source