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blastema

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Journal Articles
The American Biology Teacher. 2017; 793208–223 doi: https://doi.org/10.1525/abt.2017.79.3.208
Published: 01 March 2017
... fragment cannot swim straight. Blastema formation and regeneration of new anatomy : The next step during regeneration involves the formation of a blastema, which is a special type of tissue found in many regeneration contexts. It consists of a single-layered epidermis surrounding an internal mass of...
Images
Girardia sp.  regeneration time courses at room temperature after three amp...
Published: 01 March 2017
muscle contractions (darkly pigmented region at the site of injury) followed by the appearance of an unpigmented blastema. Regenerating eyes are visible by 5 dpa. By 9 dpa, the pharynx regenerates and the blastema becomes pigmented. By 14 dpa, regeneration is complete. Scale bars = 500 μm. A color muscle contractions (darkly pigmented region at the site of injury) followed by the appearance of an unpigmented blastema. Regenerating eyes are visible by 5 dpa. By 9 dpa, the pharynx regenerates and the blastema becomes pigmented. By 14 dpa, regeneration is complete. Scale bars = 500 μm. A color More
Images
All panels depict the non-commercially available species  Schmidtea mediter...
Published: 01 March 2017
amputation. The unpigmented (white) blastema is already visible close to the wound at 1 day post-amputation (dpa); blastema growth at 3 and 5 dpa; at 9 dpa illustrating the regeneration of eyes in the new head. (C) Healthy planarians (left) display an elongated body, uniform brown color, and a smooth body amputation. The unpigmented (white) blastema is already visible close to the wound at 1 day post-amputation (dpa); blastema growth at 3 and 5 dpa; at 9 dpa illustrating the regeneration of eyes in the new head. (C) Healthy planarians (left) display an elongated body, uniform brown color, and a smooth body More
Images
D. dorotocephala  regeneration time courses at room temperature after three...
Published: 01 March 2017
muscle contractions (darkly pigmented region at the site of injury) followed by the formations of an unpigmented blastema. Regenerating eyes are visible by 5 dpa, and the worm outline is reconstituted. By 9 dpa, the pharynx regenerates, new auricles become visible, and the blastema becomes pigmented. By muscle contractions (darkly pigmented region at the site of injury) followed by the formations of an unpigmented blastema. Regenerating eyes are visible by 5 dpa, and the worm outline is reconstituted. By 9 dpa, the pharynx regenerates, new auricles become visible, and the blastema becomes pigmented. By More
Images
P. morgani  regeneration time courses at room temperature after three amput...
Published: 01 March 2017
contractions. The white color of the worms makes the observation of blastema formation challenging, but at 3 dpa, a transparent area of new growing tissues is distinguishable. The regeneration of the pharyngeal cavity corresponds to the transparent area in the middle of the planarian body (3 dpa). At 5 dpa contractions. The white color of the worms makes the observation of blastema formation challenging, but at 3 dpa, a transparent area of new growing tissues is distinguishable. The regeneration of the pharyngeal cavity corresponds to the transparent area in the middle of the planarian body (3 dpa). At 5 dpa More
Images
P. gracilis  regeneration time courses at room temperature after three ampu...
Published: 01 March 2017
muscle contractions, and soon after, an unpigmented blastema forms. Regenerating eyes are visible from 9 dpa. The dark color of P. gracilis does not allow monitoring the regeneration of the pharyngeal cavity and multiple pharynxes. P. gracilis has significantly slower regenerative capacity than other muscle contractions, and soon after, an unpigmented blastema forms. Regenerating eyes are visible from 9 dpa. The dark color of P. gracilis does not allow monitoring the regeneration of the pharyngeal cavity and multiple pharynxes. P. gracilis has significantly slower regenerative capacity than other More
Journal Articles
The American Biology Teacher. 2008; 709546–549 doi: https://doi.org/10.2307/27669340
Published: 01 November 2008
...@umassd.edu) are Assistant Professors, all in the Department of Biology, University of Massachusetts, Dartmouth, MA 02747. the addition of ray segments to the end of the lin. Each lin develops an independent blastema through the condensa tion, and differentiation into osteoblasts, of undifferentiated...
Journal Articles
The American Biology Teacher. 1998; 60132–36 doi: https://doi.org/10.2307/4450408
Published: 01 January 1998
... that time. There are three steps in this regener- ation process (Johnson & Weston 1995): 1. Wound healing, similar to the for- mation of a scab; 2. Recruitment of regenerating tis- sue called the blastema; 3. Differentiation and outgrowth of regenerated tissue structures. Regeneration was first...
Journal Articles
The American Biology Teacher. 1987; 496355–359 doi: https://doi.org/10.2307/4448548
Published: 01 September 1987
...George L. Babich Copyright 1987 National Association of Biology Teachers References Babich, G.L. & Foret, J.E. (1973). Effects of dibutyryl cyclic AMP and related compounds on newt limb regeneration blastemas in vitro. Oncology, 28, 83-88. Babich 83 28 Oncology 1973...
Journal Articles
The American Biology Teacher. 1985; 477428–429 doi: https://doi.org/10.2307/4448114
Published: 01 October 1985
... the nerve network around the gut may detect the stretching of the gut, stimulating an overall mitotic re- sponse of the neoblasts. Baguna (1976) has also suggested that the regenera- tion blastema of transected planarians arises from proliferation of neoblasts near the amputation surface. This sug...
Journal Articles
The American Biology Teacher. 1979; 415319 doi: https://doi.org/10.2307/4446618
Published: 01 May 1979
... of Drosophila, plant systems, regeneration, and historical perspectives. Each chapter is organized in some- what the same way. The first section cov- ers normal development from gametogenesis to metamorphosis or birth. The chapter on regeneration cov- ers wound closure and blastema forma- tion. The...
Journal Articles
The American Biology Teacher. 1962; 247517–520 doi: https://doi.org/10.2307/4440076
Published: 01 November 1962
...Joseph Maria References 1 Brachet, Jean. Chemical Embryology, Intersci- ence Publishers, Inc. New York, N. Y., 1950, p. 49-53 Brachet 49 Chemical Embryology 1950 2 Fischman, Donald A. and Hay, Elizabeth, "Ori- gin of Blastema in Regenerating Limbs of the Newt Triturus...
Journal Articles
The American Biology Teacher. 1979; 415318–319 doi: https://doi.org/10.2307/4446617
Published: 01 May 1979
.... The chapter on regeneration cov- ers wound closure and blastema forma- tion. The second section of each chapter focuses on modern and classical experi- mental approaches to development. The experiments deal with deletions of tissues and with chemical alternatives in the environment. Experiments on the...
Journal Articles
The American Biology Teacher. 1979; 415319–320 doi: https://doi.org/10.2307/4446619
Published: 01 May 1979
... of Drosophila, plant systems, regeneration, and historical perspectives. Each chapter is organized in some- what the same way. The first section cov- ers normal development from gametogenesis to metamorphosis or birth. The chapter on regeneration cov- ers wound closure and blastema forma- tion. The...
Journal Articles
The American Biology Teacher. 1969; 313168–173 doi: https://doi.org/10.2307/4442459
Published: 01 March 1969
... treated animals. The appearance at the time of decapitation is represented by 0 hours. By 24 hours, the closure of the wound is completed; by 48 hours, a mass of undifferentiated tissue (the blastema) is evident. At 72 hours, pigmented eye cups are visible at low magnification in the region where the less...
Journal Articles
The American Biology Teacher. 1972; 349507–526 doi: https://doi.org/10.2307/4444134
Published: 01 December 1972
... structure? Robert 0. Becker, of the Veterans Administration Hospital in Syracuse, N.Y., has said that the pos- sibility of regenerating limbs of mammals, including man, seems nearer. He has successfully stimulated partial regeneration of limbs in rats by the induction of a blastema in response to minute...
Journal Articles
The American Biology Teacher. 1962; 247520 doi: https://doi.org/10.2307/4440077
Published: 01 November 1962
..., 1960) p. 833-834. 5. Hay, Elizabeth D. "The Fine Structure of Blastema Cells and Differentiating Cartilage Cells in Regenerating Limbs of Amblystoma Larvae," Journal of Biophysical and Biochemi- cal Cytology IV, (September 25, 1958), p. 538- 592. "Electron Microscopic Observations of Muscle...
Journal Articles
The American Biology Teacher. 1967; 29297–102 doi: https://doi.org/10.2307/4441615
Published: 01 February 1967
... somewhat novel way with fern prothallia. The regeneration of the pro- thallia is in some superficial ways similar to that in planaria, but in all important ways it is quite different: Nothing comparable to a blastema is formed. In the apical half of a transversely cut prothallium, regeneration does not...
Journal Articles
The American Biology Teacher. 1965; 273185–193 doi: https://doi.org/10.2307/4440885
Published: 01 March 1965
... regeneration does not involve the formation of a blastema as in tail and limb regeneration. Part 11. The Teacher-Student Research Program at East Leyden High School Purpose and Objectives: The purpose and objectives of this program can be considered from the viewpoint of both the student and the teacher. There...