Results 51 to 60 of about 316,695 (204)

Hydroid Stolonal Contractions Mediated by Contractile Vacuoles [PDF]

Journal of Experimental Biology, 1992
ABSTRACT The growth and development of colonial hydroids is dependent upon a flow of gastrovascular fluid through a common vasculature. Gastrovascular flow is believed to be driven by polyp contractions, stolonal contractions and endodermal ciliation. In the athecate hydroid Hydractinia symbiolongicarpus we found that polyp contractions,
B. Schierwater, B. Piekos, L. W. Buss
openaire   +1 more source

Differential Effects of Iron, Zinc, and Copper on Dictyostelium discoideum Cell Growth and Resistance to Legionella pneumophila

Frontiers in Cellular and Infection Microbiology, 2018
Iron, zinc, and copper play fundamental roles in eucaryotes and procaryotes, and their bioavailability regulates host-pathogen interactions. For intracellular pathogens, the source of metals is the cytoplasm of the host, which in turn manipulates ...
Simona Buracco, Barbara Peracino, Claudia Andreini, Enrico Bracco, Salvatore Bozzaro   +4 more
doaj   +1 more source

Copine A Interacts with Actin Filaments and Plays a Role in Chemotaxis and Adhesion

Cells, 2019
Copines make up a family of calcium-dependent, phospholipid-binding proteins found in numerous eukaryotic organisms. Copine proteins consist of two C2 domains at the N-terminus followed by an A domain similar to the von Willebrand A domain found in ...
Matthew J. Buccilli, April N. Ilacqua, Mingxi Han, Andrew A. Banas, Elise M. Wight, Hanqian Mao, Samantha P. Perry, Tasha S. Salter, David R. Loiselle, Timothy A.J. Haystead, Cynthia K. Damer   +10 more
doaj   +1 more source

The neotypification of Frontonia vernalis (Ehrenberg, 1833) Ehrenberg, 1838 and the description of Frontonia paravernalis sp. nov. trigger a critical revision of frontoniid systematics

BMC Zoology, 2021
Background Among Oligohymenophorea (Ciliophora, Alveolata) the subclass Peniculia stands as one of the most well-known groups. Frontonia is the largest genus of Peniculia, and its representatives are spread in any type of water bodies as well as in soil.
Valentina Serra, Aldo D’Alessandro, Venkatamahesh Nitla, Leandro Gammuto, Letizia Modeo, Giulio Petroni, Sergei I. Fokin   +6 more
doaj   +1 more source

Harmonically matched grating-based full-field quantitative high-resolution phase microscope for observing dynamics of transparent biological samples [PDF]

, 2007
We have developed a full-field high resolution quantitative phase imaging technique for observing dynamics of transparent biological samples. By using a harmonically matched diffraction grating pair (600 and 1200 lines/mm), we were able to obtain non ...
Heng, Xin, Wu, Jigang, Yang, Changhuei, Yaqoob, Zahid   +3 more
core   +1 more source

Morphometric study of a Brazilian strain of Carchesium polypinum (Ciliophora: Peritrichia) attached to Pomacea figulina (Mollusca: Gastropoda), with notes on a high infestation

Zoologia (Curitiba), 2010
During an ecological study of the epibiotic relationship between ciliate protists and Pomacea figulina (Spix, 1827) (Gastropoda, Ampullariidae), originating from an urban stream in southeast Brazil, a high infestation by the peritrich ciliate Carchesium ...
Roberto Júnio P. Dias, Adalgisa F. Cabral, Isabel C. V. Siqueira-Castro, Inácio D. da Silva-Neto, Marta D'Agosto   +4 more
doaj   +1 more source

Potassium channel KCN11 is required for maintaining cellular osmolarity during nitrogen starvation to control proper cell physiology and TAG accumulation in Chlamydomonas reinhardtii

Biotechnology for Biofuels, 2020
Background Nitrogen (N) starvation in algae induces a variety of structural and metabolic changes including accumulation of triacylglycerol (TAG). Given the promising prospect of using algae as feedstock for biofuel production, accumulation of TAG upon N
Feifei Xu, Junmin Pan
doaj   +1 more source

New records of Praethecacineta halacari (Schulz) (Suctorea: Ciliophora) from Taiwan, Tanzania and Canada [PDF]

, 2009
The present study reports on a range extension of the suctorian species Praethecacineta halacari to the region of He-Ping-Dao, north-east of Taiwan (West Pacific Ocean), Matemwe, the east coast of Unguja, Zanzibar, Tanzania (West Indian Ocean) and Nova
Benny, К. К. Сhan, Chatterjee, Taras, Dovgal, I. V., Marleen, De Тroch, Subbarao, D. V.   +4 more
core   +1 more source

Skeletal Muscle Biomarkers of Amyotrophic Lateral Sclerosis: A Large‐Scale, Multi‐Cohort Proteomic Study

Annals of Neurology, EarlyView.
Objective Biomarkers with clear contexts of use are important tools for amyotrophic lateral sclerosis (ALS) therapy development. Understanding their longitudinal trajectory in the untreated state is key to their use as potential markers of pharmacodynamic response.
Oleksandr Dergai, Joanne Wuu, Magdalena Koziczak‐Holbro, Andrea Malaspina, Volkan Granit, Jessica P. Hernandez, Anne Cooley, Ruchika Sachdev, Lili Yu, Michael Bidinosti, Ludivine Flotte, Mark Nash, Lori L. Jennings, James D. Berry, Lucie I. Bruijn, Sophie Brachat, Michael Benatar   +16 more
wiley   +1 more source

The Effect of Overexpressed DdRabS on Development, Cell Death, Vesicular Trafficking, and the Secretion of Lysosomal Glycosidase Enzymes

Biology, 2018
Rab GTPases are essential regulators of many cellular processes and play an important role in downstream signaling vital to proper cell function. We sought to elucidate the role of novel D. discoideum GTPase RabS.
Azure Yarbrough, Katherine Maringer, Entsar J. Saheb, Sanaa Jawed, John Bush   +4 more
doaj   +1 more source