Results 221 to 230 of about 12,829 (247)

Intercalary regeneration in planarians

Developmental Dynamics, 2003
AbstractHow can a planarian regenerate its entire body from a small portion of its body? Neoblasts, the totipotent stem cells of planarian, are assumed to be able to produce all missing cell types. However, we do not know how the cell fate of these cells is controlled during regeneration.
K, Agata, T, Tanaka, C, Kobayashi, K, Kato, Y, Saitoh   +4 more
openaire   +2 more sources

Pharynx regeneration in planarians

Russian Journal of Developmental Biology, 2009
The obtained and published data on pharynx regeneration in planarians have been reviewed. Planarians can regenerate from a small body fragment and restore all missing organs including the pharynx. The pharynx is a relatively autonomous organ with a differentiated structure and specialized function.
openaire   +2 more sources

The Wnt/Ca2+ signaling pathway is essential for the regeneration of GABAergic neurons in planarian Dugesia japonica

The FASEB Journal, 2020
The growth and differentiation of neurons are critical events in the establishment of proper neuron connectivity and function. Planarians have a remarkable ability to completely regenerate a functional nervous system from a pluripotent stem cell ...
Hui Zhen, Hongkuan Deng, Qian Song, Mingyue Zheng, Zuoqing Yuan, Zhonghong Cao, Qiuxiang Pang, Bosheng Zhao   +7 more
semanticscholar   +1 more source

Planarian Pluripotency

Science, 2011
Cellular and molecular details underlying tissue regeneration are revealed in the flatworm.
openaire   +1 more source

Planarian Diversity and Phylogeny

2018
Hundreds of planarian species exist worldwide, representing a rich phenotypic diversity. This chapter presents an overview of the morphology and anatomy of various taxonomic groups of planarian flatworms, focusing on features enabling recognition and identification of the animals. The most recent view on the phylogenetic relationships of the planarians
Ronald, Sluys, Marta, Riutort
openaire   +2 more sources

Catecholamines in planarians

Comparative Biochemistry and Physiology, 1970
1. 1. Ten lots of Dugesia tigrina, each consisting of 300–600 individuals, were extracted according to the method of Anton and Sayre for catecholamines and the extracts subjected to thin-layer chromatography. 2. 2. Dopamine and lesser amounts of noradrenaline were found in the Dugesia extracts. 3. 3.
John H Welsh, Elizabeth C King
openaire   +1 more source

Tissue Transplantations in Planarians

2018
Tissue transplantation is an important tool for in vivo studies of pattern organization and axis establishment or maintenance in planarians. Further, transplants can inform on cell movements under different regenerative conditions or genetic backgrounds.
José I, Rojo-Laguna, Emili, Saló
openaire   +2 more sources

The Ecology of Freshwater Planarians

2018
Planarians are on the rise as a model system for regeneration and stem cell dynamics. Almost in parallel the interest in planarian field biology has declined. Besides representing an independent research discipline in its own right, understanding of the natural habitat is also directly relevant to optimizing culture conditions in the laboratory ...
Vila Farre, M., Rink, J.
openaire   +4 more sources

Photoklinokinesis in Planarians?

Netherlands Journal of Zoology, 1974
1. With respect to photoklinokinesis the concept non-directional light gradient is a fallacy because of fundamental properties of light (see 1). 2. Therefore a radial light gradient was produced in time, as determined by the changing location of the experimental animal, whereas spatially the light field was all the time isotrope (see 2.2). 3.
K.B.J. Gerssen-Schoorl, F.J. Verheijen
openaire   +1 more source

Microplastics exposure causes oxidative stress and microbiota dysbiosis in planarian Dugesia japonica

Environmental science and pollution research international, 2022
Yapeng Han, Xiaoxia Zhang, Pengfei Liu, Shujuan Xu, Delai Chen, Jian Ning Liu, Wenguang Xie   +6 more
semanticscholar   +1 more source