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

Primary and Secondary Growth in Roots and Shoots03:02

Primary and Secondary Growth in Roots and Shoots

60.4K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
60.4K
Aging01:26

Aging

694
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
694
Relative Risk01:12

Relative Risk

2.1K
Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
2.1K
The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

3.5K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
3.5K
Relative Velocity in One Dimension01:10

Relative Velocity in One Dimension

10.1K
The understanding of the concept of reference frames is essential to discuss relative motion in one or more dimensions. When we say that an object has a certain velocity, we must state the velocity with respect to a given reference frame. In most examples, this reference frame has been Earth. For instance, if a statement reads that a person is sitting in a train moving at 10 m/s east, then it implies that the person on the train is moving relative to the surface of Earth at this velocity,...
10.1K
Relative Frequency Histogram01:14

Relative Frequency Histogram

6.4K
The relative frequency depicts the proportion of data points that have each value. The frequency tells the number of data points that have each value. Like the histogram, a relative frequency histogram also has the same shape with a horizontal scale (the x-axis), but the vertical scale (the y-axis) is marked with relative frequencies (percentages of the whole) instead of actual frequencies. A relative frequency histogram is a graphical representation of a frequency distribution where the...
6.4K

You might also read

Related Articles

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

Sort by
Same author

Reduced categorical congruence of cognitive and affective empathy in persons with psychotic disorders.

Scientific reports·2026
Same author

Tolerance to salt stress in maize callus lines with different polyamine content.

Plant cell reports·2019
Same author

Circulating IL-8 levels are increased in patients with type 2 diabetes and associated with worse inflammatory and cardiometabolic profile.

Acta diabetologica·2017
Same author

Comment on Elangovan H et al. vitamin D in liver disease: Current evidence and potential directions. Biochim Biophys Acta 2017;1863(4):907-916.

Biochimica et biophysica acta. Molecular basis of disease·2017
Same author

Characterization of antibody response in neuroinvasive infection caused by Toscana virus.

Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases·2017
Same author

Response of Lemna gibba L. to high and environmentally relevant concentrations of ibuprofen: Removal, metabolism and morpho-physiological traits for biomonitoring of emerging contaminants.

The Science of the total environment·2017

Related Experiment Video

Updated: Jan 29, 2026

Relating Stomatal Conductance to Leaf Functional Traits
11:09

Relating Stomatal Conductance to Leaf Functional Traits

Published on: October 12, 2015

19.7K

Stomatal functioning in relation to leaf age in in-vitro-grown plum shoots.

M Zacchini1, S Morini2

  • 1Consiglio Nazionale delle Ricerche, Istituto di Biochimica ed Ecofisiologia Vegetali, Monterotondo Sc. (Roma), Italy, , , , , , IT.

Plant Cell Reports
|February 13, 2019
PubMed
Summary

Stomatal closure response to abiotic stress decreases with leaf age in plum (Prunus cerasifera) shoots. Younger leaves exhibit more effective stomatal function and faster closure/re-opening kinetics.

Keywords:
Key words Stomatal functioningLeaf ageMicropropagationPrunus cerasifera

More Related Videos

Assessing Stomatal Response to Live Bacterial Cells using Whole Leaf Imaging
07:03

Assessing Stomatal Response to Live Bacterial Cells using Whole Leaf Imaging

Published on: October 2, 2010

18.9K
Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method EFM
12:11

Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method EFM

Published on: December 31, 2012

38.6K

Related Experiment Videos

Last Updated: Jan 29, 2026

Relating Stomatal Conductance to Leaf Functional Traits
11:09

Relating Stomatal Conductance to Leaf Functional Traits

Published on: October 12, 2015

19.7K
Assessing Stomatal Response to Live Bacterial Cells using Whole Leaf Imaging
07:03

Assessing Stomatal Response to Live Bacterial Cells using Whole Leaf Imaging

Published on: October 2, 2010

18.9K
Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method EFM
12:11

Measurement of Leaf Hydraulic Conductance and Stomatal Conductance and Their Responses to Irradiance and Dehydration Using the Evaporative Flux Method EFM

Published on: December 31, 2012

38.6K

Area of Science:

  • Plant Physiology
  • Abiotic Stress Response

Background:

  • Stomata regulate gas exchange and water loss in plants.
  • Leaf age influences physiological responses to environmental factors.

Purpose of the Study:

  • To investigate the effect of leaf age on stomatal closure in response to abiotic stressors.
  • To compare the efficacy of different abiotic treatments on stomatal closure across various leaf ages.

Main Methods:

  • In vitro-grown plum (Prunus cerasifera) shoots were used.
  • Epidermal peels from first, third, and fifth leaves were exposed to mannitol, coumarin, or darkness.
  • Stomatal closure and re-opening kinetics were assessed.

Main Results:

  • Stomatal closure percentage decreased with increasing leaf age.
  • Mannitol induced a greater closure effect than coumarin.
  • Stomatal closure response and re-opening were slower in older leaves.

Conclusions:

  • Younger plum leaves exhibit more efficient stomatal closure and response to abiotic stress.
  • Leaf ontogeny is a critical factor modulating stomatal sensitivity to environmental cues.