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 Experiment Videos

Rapid wall relaxation in elongating tissues.

R Matyssek1, S Maruyama, J S Boyer

  • 1Department of Soil and Crop Sciences, Texas A & M University, College Station, Texas 77843.

Plant Physiology
|April 1, 1988
PubMed
Summary

Cell wall relaxation kinetics in soybean and pea tissues differ. Slowly growing tissue attached to rapidly elongating tissue delays relaxation, impacting yield threshold turgor measurements.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

A Percutaneous Technique for Reduction and Internal Fixation of Displaced Intra-Articular Calcaneal Fractures.

JBJS essential surgical techniques·2021
Same author

Effect of fertilization on ozone-induced changes in the metabolism of birch (Betula pendula) leaves.

The New phytologist·2021
Same author

Woody-plant ecosystems under climate change and air pollution-response consistencies across zonobiomes?

Tree physiology·2017
Same author

Environmental control of CO<sub>2</sub>-assimilation and leaf conductance in Larix decidua Mill. : I. A comparison of contrasting natural environments.

Oecologia·2017
Same author

Diurnal variations of light-saturated CO<sub>2</sub> assimilation and intercellular carbon dioxide concentration are not related to leaf water potential.

Oecologia·2017
Same author

Estimating photosynthetic rate and annual carbon gain in conifers from specific leaf weight and leaf biomass.

Oecologia·2017

Area of Science:

  • Plant Physiology
  • Cell Biology
  • Biophysics

Background:

  • Yield threshold turgor is a critical plant growth parameter.
  • Inconsistent cell wall relaxation kinetics between soybean and pea tissues cast doubt on measurement accuracy.

Purpose of the Study:

  • To investigate and clarify the differences in cell wall relaxation kinetics between soybean and pea stem tissues.
  • To determine the influence of attached non-elongating tissues on relaxation rates and yield threshold turgor measurements.

Main Methods:

  • Utilized the pressure probe and guillotine psychrometer techniques.
  • Excised elongating stem tissues of soybean (Glycine max) and pea (Pisum sativum) to initiate relaxation by removing water supply.

Main Results:

  • Soybean's typically rapid cell wall relaxation was slowed when attached to slowly growing or mature tissue, mimicking pea's slower kinetics.
  • The degree of relaxation delay correlated with the amount of attached non-elongating tissue, indicating it acts as a water source.
  • Removing slowly growing tissue from pea accelerated its relaxation rate to match soybean's typical speed.

Conclusions:

  • True cell wall relaxation to the yield threshold occurs rapidly (minutes), ensuring the threshold remains constant during measurements.
  • The yield threshold turgor, measured under these conditions, accurately reflects the intact plant's turgor, irrespective of species.
  • Slowly growing or mature tissue interferes with accurate yield threshold measurements and should be excluded, but can be advantageous for measuring turgor in excised tissues.

Related Experiment Videos