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

Dehydration Synthesis01:15

Dehydration Synthesis

Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.Synthesis of carbohydratesSugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from one reactant...
Dehydration of Aldols to Enals: Base-Catalyzed Aldol Condensation01:14

Dehydration of Aldols to Enals: Base-Catalyzed Aldol Condensation

This lesson delves into the aldol condensation catalyzed by bases, where aldols undergo dehydration to enals. As shown in Figure 1, the β-hydroxy aldehyde formed in a base-catalyzed aldol addition reaction dehydrates on heating to yield an unsaturated carbonyl product, which is commonly referred to as an enal.
Dehydration of Aldols to Enones: Acid-Catalyzed Aldol Condensation00:43

Dehydration of Aldols to Enones: Acid-Catalyzed Aldol Condensation

As shown in Figure 1, under acidic conditions, the β-hydroxy ketone undergoes dehydration via an E1 elimination reaction to form an enone.
Hydrolysis01:15

Hydrolysis

Overview
Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides break into amino acids, carbohydrates into simple sugars, and DNA into nucleotides. Enzymes often facilitate these processes.
Hydrolysis Reverses Dehydration Synthesis
Complex carbohydrates can be broken down by breaking the bonds between individual sugar units. The reaction breaks a glycosidic bond as water is added to the compound. The...
Alkynes to Aldehydes and Ketones: Acid-Catalyzed Hydration02:40

Alkynes to Aldehydes and Ketones: Acid-Catalyzed Hydration

Introduction
Analogous to alkenes, alkynes also undergo acid-catalyzed hydration. While the addition of water to an alkene gives an alcohol, hydration of alkynes produces different products such as aldehydes and ketones.
Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...

You might also read

Related Articles

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

Sort by
Same author

Inhibition of cryoaggregation of phospholipid liposomes by an Arabidopsis intrinsically disordered dehydrin and its K-segment.

Colloids and surfaces. B, Biointerfaces·2021
Same author

An intrinsically disordered radish vacuolar calcium-binding protein (RVCaB) showed cryoprotective activity for lactate dehydrogenase with its hydrophobic region.

International journal of biological macromolecules·2021
Same author

Potential use of essential oils to enhance heat tolerance in plants.

Zeitschrift fur Naturforschung. C, Journal of biosciences·2020
Same author

Cryoprotective activity of Arabidopsis KS-type dehydrin depends on the hydrophobic amino acids of two active segments.

Archives of biochemistry and biophysics·2020
Same author

F-segments of Arabidopsis dehydrins show cryoprotective activities for lactate dehydrogenase depending on the hydrophobic residues.

Phytochemistry·2020
Same author

The isoquinoline alkaloid sanguinarine which inhibits chaperone activity enhances the production of heat shock proteins in <i>Arabidopsis</i>.

Plant biotechnology (Tokyo, Japan)·2019

Related Experiment Video

Updated: Jun 16, 2026

Analysis of AtHIRD11 Intrinsic Disorder and Binding Towards Metal Ions by Capillary Gel Electrophoresis and Affinity Capillary Electrophoresis
07:54

Analysis of AtHIRD11 Intrinsic Disorder and Binding Towards Metal Ions by Capillary Gel Electrophoresis and Affinity Capillary Electrophoresis

Published on: August 22, 2018

The multifunctionality of dehydrins: an overview.

Masakazu Hara1

  • 1Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Japan.

Plant Signaling & Behavior
|February 9, 2010
PubMed
Summary

Dehydrins are plant proteins involved in development and stress. Recent studies reveal their diverse functions, offering new perspectives on their roles in plant physiology.

Area of Science:

  • Plant Physiology
  • Molecular Biology
  • Biochemistry

Background:

  • Dehydrins are hydrophilic proteins found in plants.
  • They accumulate during embryogenesis and in response to water stress.
  • Despite decades of research since their discovery, their precise physiological roles remain largely undefined.

Purpose of the Study:

  • To review the multifunctionality of dehydrins.
  • To highlight recent experimental evidence supporting their diverse functions.
  • To discuss future research directions for dehydrin functional studies.

Main Methods:

  • Literature review of molecular-based studies.
  • Analysis of experimental evidence on dehydrin functions.
  • Synthesis of current knowledge and future perspectives.

More Related Videos

Methods for the Self-integration of Megamolecular Biopolymers on the Drying Air-LC Interface
07:06

Methods for the Self-integration of Megamolecular Biopolymers on the Drying Air-LC Interface

Published on: April 7, 2017

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
12:07

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

Related Experiment Videos

Last Updated: Jun 16, 2026

Analysis of AtHIRD11 Intrinsic Disorder and Binding Towards Metal Ions by Capillary Gel Electrophoresis and Affinity Capillary Electrophoresis
07:54

Analysis of AtHIRD11 Intrinsic Disorder and Binding Towards Metal Ions by Capillary Gel Electrophoresis and Affinity Capillary Electrophoresis

Published on: August 22, 2018

Methods for the Self-integration of Megamolecular Biopolymers on the Drying Air-LC Interface
07:06

Methods for the Self-integration of Megamolecular Biopolymers on the Drying Air-LC Interface

Published on: April 7, 2017

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
12:07

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

Main Results:

  • Dehydrins exhibit significant functional versatility.
  • Recent molecular studies provide crucial insights into these functions.
  • Evidence points towards roles beyond simple water stress protection.

Conclusions:

  • Dehydrins are multifunctional proteins with roles extending beyond water stress.
  • Further research is needed to fully elucidate their physiological significance.
  • Understanding dehydrin versatility opens new avenues in plant science.