Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Typical Model Studies01:30

Typical Model Studies

Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
Clearance Models: Physiological Models01:09

Clearance Models: Physiological Models

Drug clearance is a critical pharmacokinetic process involving the irreversible removal of drugs from the body through various organs over a specified time period. Physiological models are indispensable in determining organ-specific clearance, defined by the proportion of the drug eliminated per unit of time from the organ's blood volume.
The organ's clearance rate depends on the blood flow to the organ and the extraction ratio (E). The extraction ratio describes the organ's proficiency in drug...
Modeling and Similitude01:12

Modeling and Similitude

Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
Hypodermis01:02

Hypodermis

The hypodermis (the subcutaneous layer or superficial fascia) is present directly below the dermis. It connects the skin to the underlying fascia (fibrous tissue) of the bones and muscles. It is not strictly a part of the skin, although the border between the hypodermis and dermis can be difficult to distinguish. The hypodermis consists of well-vascularized, loose, areolar connective tissue and adipose tissue, which functions as a mode of fat storage and provides insulation and cushioning for...
Morphogenesis02:19

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Thypedin, the multi copy precursor for the hydra peptide pedin, is a beta-thymosin repeat-like domain containing protein.

Mechanisms of development·2005
See all related articles

Related Experiment Video

Updated: Jul 11, 2026

Generation of Transgenic Hydra by Embryo Microinjection
09:10

Generation of Transgenic Hydra by Embryo Microinjection

Published on: September 11, 2014

Hydra--ancient model with modern outfit.

S A H Hoffmeister-Ullerich1

  • 1Centre for Molecular Neurobiology, University of Hamburg, Martinistrasse 52, 20246 Hamburg, Germany. hoffmeis@uke.uni-hamburg.de

Cellular and Molecular Life Sciences : CMLS
|September 25, 2007
PubMed
Summary

Hydra, a simple freshwater polyp, is a key model organism for studying growth and differentiation. Research reveals cnidarians utilize peptides and molecular tools to regulate these essential biological processes.

Area of Science:

  • Developmental biology
  • Cell biology
  • Medical research

Background:

  • The regulation of organismal growth and cellular differentiation is fundamental to developmental biology and has significant implications for medical research.
  • The freshwater polyp Hydra serves as an early and valuable model organism for investigating these processes due to its simplified body plan and limited cell types.
  • Cnidarians, including Hydra, possess a complex set of molecular mechanisms for controlling growth and differentiation.

Purpose of the Study:

  • To explore the molecular underpinnings of growth and differentiation control in cnidarians.
  • To highlight the role of peptides in the regulation of developmental processes within simple model organisms.

Main Methods:

  • Utilizing Hydra as a model system for biological studies.

More Related Videos

Generation and Long-term Maintenance of Nerve-free Hydra
06:33

Generation and Long-term Maintenance of Nerve-free Hydra

Published on: July 7, 2017

Related Experiment Videos

Last Updated: Jul 11, 2026

Generation of Transgenic Hydra by Embryo Microinjection
09:10

Generation of Transgenic Hydra by Embryo Microinjection

Published on: September 11, 2014

Generation and Long-term Maintenance of Nerve-free Hydra
06:33

Generation and Long-term Maintenance of Nerve-free Hydra

Published on: July 7, 2017

  • Analyzing the molecular tools and signaling pathways involved in growth and differentiation.
  • Investigating the specific functions of peptides in cellular regulation.
  • Main Results:

    • Hydra's simple body plan belies a sophisticated molecular toolkit for controlling growth and differentiation.
    • Peptides have been identified as crucial components within this molecular repertoire.
    • These findings underscore the conserved nature of fundamental biological processes across diverse species.

    Conclusions:

    • The study of Hydra provides critical insights into the fundamental mechanisms of growth and differentiation.
    • Peptides play a significant role in the molecular control of these processes in cnidarians.
    • Understanding these mechanisms in simple models like Hydra can inform broader developmental and medical research.