Preview

Melanophores and Microtubule Monorails: Rapid Color Change in Fish and Amphibians

Satisfactory Essays
Open Document
Open Document
433 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Melanophores and Microtubule Monorails: Rapid Color Change in Fish and Amphibians
Journal Article Assignment
Cell Bio Bites Topic: Melanophores and Microtubule Monorails – Insights into Rapid Colour Change in Fish and Amphibians

Define the key terms (scientific words) in your own words. (notes or textbook can be used as sources)
Melanophores – pigmented cells that contain melanin which are black/brown and are found particularly in fish, amphibians and reptiles.
Melanin-Concentrating Hormone – a hormone which controls skin pigmentation in teleost fish.
Flatfish – a fish which is flat and in many species has both of its eyes on one side of its head.
Metamorphosis – when an insect or amphibian changes from an immature state to a mature state in two or more stages.
Verasper moseri – more commonly known as the barfin flounder, it is a flat fish

Why is it important to learn about this topic? Are there potential medical or commercial applications?
It is important to study this topic as it can help with furthering neurological drugs. Melanophores act similar to drugs that affect the nervous system.

The article: Developmental changes in melanophores and their asymmetrical responsiveness to melanin-concentrating hormone during metamorphosis in barfin flounder (Verasper moseri)

Provide a citation for the article you have chosen, formatted in APA style:
Yoshikawa, N., Matsuda, T., Takahashi, A., Tagawa, M., (2013). Developmental changes in melanophores and their asymmetrical responsiveness to melanin-concentrating hormone during metamorphosis in barfin flounder (Verasper moseri).General and Comparative Endocrinology
In your own words, provide background information (two sentences) that sets up the purpose of the study. This information will likely be found in the Introduction.
Flat fish evolved from a symmetrical ancestor. They must have developed the ability to asymmetrically change their colorations over a course of many years due to evolution.

What was the objective of the study?
The objective of this study is

You May Also Find These Documents Helpful

  • Powerful Essays

    Volckaert F., Zouros E. 1989. Allozyme and physiological variation in the scallop Placopecten magellanicus and a general model for the effects of heterozygosity on fitness in marine molluscs. Marine Biology. 103: 51-61…

    • 1777 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    Blind Mexican Tetra Fish

    • 315 Words
    • 2 Pages

    Blindness in the Mexican tetra fish is a controversy among scientists whom have long-debated the mechanism of this evolutionary change. The Mexican tetra fish, Astyanax mexicanus, exists in two morphs: a sighted surface form and a blind cavefish form. The debate amongst scientists is rooted in the process by which the Mexican tetra became blind. Evolution demands progress, yet the blind Mexican tetra suggests regression, as it lost its vision over time.…

    • 315 Words
    • 2 Pages
    Good Essays
  • Best Essays

    Adaptive phenotypic plasticity is being increasingly recognized as an important role in adaptive radiation. The plasticity leads to the production of phenotypes that are well suited for the ecological niches. The Midas cichlid fish, which are distributed in the Nicaraguan great lakes and several crater lakes, have been known for their intraspecific polymorphism, and phenotypic plasticity. The lower pharyngeal jaw of the Midas cichlid fish Amphilophus citrinellus was tested in different diets for its phenotypic plasticity. The study found that different diets induced changes on the lower pharyngeal jaw of the Midas cichlids fish, and that changes were due to the mechanical stimulations of the jaws, but not to nutritional composition. The result of jaw differentiation suggest that adaptive phenotypic plasticity of the Midas cichlid fish could be an important factor in its speciation.…

    • 2150 Words
    • 9 Pages
    Best Essays
  • Good Essays

    Hans Spemann

    • 630 Words
    • 3 Pages

    In these experiments, Spemann and Mangold used differently pigmented embryos from two newt species: the darkly pigmented Triturus taeniatus and the nonpigmented Triturus cristatus. So when Spemann and Mangold prepared these transplants, they were able to readily identify host and donor tissues on the basis of color.† When the dorsal lip of an early T. taeniatus gastrula was removed and implanted into the region of an early T. cristatus gastrula fated to become ventral epidermis (belly skin), the dorsal lip tissue invaginated just as it would normally have done (showing self-determination), and disappeared beneath the vegetal cells. The pigmented donor tissue then continued to self-differentiate into the chordamesoderm (notochord) and other mesodermal structures that normally form from the dorsal lip. As the new donor-derived mesodermal cells moved forward, host cells began to participate in the production of the new embryo, becoming organs that normally they never would have formed. In this secondary embryo, a somite could be seen containing both pigmented (donor) and unpigmented (host) tissue. Even more spectacularly, the dorsal lip cells were able to interact with the host tissues to form a complete neural plate from host ectoderm. Eventually, a secondary embryo formed, face to face with its host.…

    • 630 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Melanoma Research Paper

    • 797 Words
    • 4 Pages

    Melanoma is the most serious type of skin cancer. It occurs in the melanocytes, the skin cells where melanin or color is produced. Melanin causes the skin to tan as well as protects the deeper layers of the skin from damaging ultra violet…

    • 797 Words
    • 4 Pages
    Good Essays
  • Good Essays

    A bath sponge is a multicellular eukaryote and tends to be only two colors, light purple or gray.…

    • 82 Words
    • 1 Page
    Good Essays
  • Good Essays

    The mutation causing this unique goldfish was exclusively from picking already mutant hatchery goldfish with pale skin, and breeding them together. Emphasis is put on the fact that two already mutant goldfish with pale skin, were bred to create this species; in…

    • 267 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Essay On Cuttlefish

    • 463 Words
    • 2 Pages

    You might think cuttlefish are cuddly, but actually they are not cuddly at all. Cuttlefish, also called the sea chameleons are intelligent invertebrates that live in seas and oceans. Like their cousins, the octopuses and the squids, they are a mollusk. They make up the group cephalopods which means ‘head foot’ because they all have tentacles attached to their heads. Cuttlefish have large brains to remember things, tentacles for catching prey, arms for holding food. Despite the eyes they are color blind but they still work as well as our own. Cuttlefish are skillful color changers. A cuttlefish can change colors using special cells under its skin that contain colored chemicals called pigments. From birth cuttlefish can display at least thirteen types of body…

    • 463 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    The second metamorphosis occurs at the end of the juvenile stage. When the sea lamprey are ready to travel back upstream, their eye pigment changes from rhodopsin to porphyropsin. The main difference between the two is that porphyropsin is typically found in freshwater vertebrates, versus the rhodopsin in the marine and land vertebrates. Prior to the metamorphosis, the sex of the lamprey is very had to differentiate as well, but after this second metamorphosis, the lamprey is now a sexually mature adult and one is able to tell the male from the female. The sea lamprey now migrates back upstream to spawn (Wald 1957). The sea lamprey uses pheromones, natural chemicals, released by other sea lampreys in their larval stage, to locate certain…

    • 162 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Parrot Fish

    • 568 Words
    • 1 Page

    of huge, noticeable scales on their bodies. The color of the Sparisoma when it is fully…

    • 568 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Bioluminescence

    • 856 Words
    • 4 Pages

    The Flashlight fish or Lantern fish is a deep sea fish that moves primarily at night. It is most recognized by its black body, bluish dorsal, and caudal fins. This fish gets its name from the glowing smile it appears to have. The “smile” is created by bacteria that live inside the “light” in the head of the fish right below the eye. This light is produced by the activity of these symbiotic luminous bacteria which inhabit the light-emitting organ, called a photophore. The photophore usually gives off a white color, but it may also appear yellow or blue, it all depends on the mood of the fish. This photophore is used in many different ways and when not in use can be shut off. The fish does this by rolling its light organ, moving its socket away from the translucent skin under its eyes, causing the lights to be unseen. Flashlight fishes also use their ability to emit light to disorient predators to escape and to attract their number one food source plankton. (Flashlight Fish)…

    • 856 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Fishes in Aquarium

    • 2961 Words
    • 12 Pages

    Human is the animal who loves to live in a community.Human beings prefer to live in a family or group with food clothing and shelter .exactly the opposite is the case with aquatic life.There are fishes that swim in group but never live in a group .They do not have any shelter under the water.They feel safe when hidden inside a rock.…

    • 2961 Words
    • 12 Pages
    Good Essays
  • Satisfactory Essays

    Antomology

    • 524 Words
    • 3 Pages

    Larvies were raised at different temperatures, 16oC and 32 oC; 80% of the first collections exhibited pupae of dark colors, and 62% of the others developed white colors respectively. This showed that the temperatures in which the larvae are raised are an essential condition affecting the pupal coloration. Another experiment was also done on larvae raised at a common temperature. They were divided between abdominal and thoracic fractions at various pharate pupal phases. All the head-theoracic fractions in spite of the phase they were from, exhibited white pupae while the abdominal parts exhibited white or dark colors based on the phase they were ligatured at. We conclude that the element that encourages the white color is originated from the theoracic part. Finally other experiments also showed that dark pupae added with basic extracts primed from central nervous system, turn in further stages of their life cycle into white color pupae. These consequences propose that the feature suggesting white pupae is an important molecule controlling pupal color polyphenism in Vanessa Carui.…

    • 524 Words
    • 3 Pages
    Satisfactory Essays
  • Powerful Essays

    Jakabel

    • 7322 Words
    • 30 Pages

    Soltani, M,. Marmari, G. H., & Mehrabi, M. R. (2004). Aquaculture International. Netherlands: Kluwer Academic Publishers…

    • 7322 Words
    • 30 Pages
    Powerful Essays
  • Powerful Essays

    Tilapia Case Study

    • 823 Words
    • 4 Pages

    Larvae tilapia will be transferred into the aquarium with 12L of freshwater and the aeration will provide. The cultured of tilapia then will be feed with the Nannochloropsis sp. The growth of larvae tilapia will be measure on their length and weight. To take their length and weight of larvae tilapia, we must take the larvae and formalin then dry it. After that, take their length and weight. In fish, the larvae stage generally consists of the period of rapid growth, which can vary substantially in duration within and among species (Sinclair and Tremblay, 1985). The observation and data analysis will be recorded every day until the larvae tilapia reach into the stage…

    • 823 Words
    • 4 Pages
    Powerful Essays