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Updated: Aug 8, 2026
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Metabolomic Analysis of Barley by Gas Chromatography/Mass Spectrometry
Published on: November 8, 2024
Methyl jasmonate and transpiration in barley
1Department of Botany, University of Guelph, Guelph, Ontario N1G 2W1 Canada.
Plant Physiology
|August 1, 1991
Summary
Methyl jasmonate does not significantly alter short-term stomatal behavior in barley leaves. This plant hormone, whether airborne or in the transpiration stream, does not primarily modulate water loss in this species.
Area of Science:
- Plant Physiology
- Plant Biochemistry
Background:
- Plant growth regulators influence physiological processes.
- Stomatal regulation is crucial for controlling water loss and gas exchange.
- Methyl jasmonate is known to affect various plant responses.
Purpose of the Study:
- To investigate the effect of methyl jasmonate on transpirational water loss in barley.
- To determine if methyl jasmonate acts as a short-term modulator of stomatal behavior in Hordeum vulgare.
Main Methods:
- Gravimetric determination of transpirational water loss from barley leaves.
- Application of methyl jasmonate as airborne vapor.
- Application of methyl jasmonate in the transpiration stream.
Main Results:
- Methyl jasmonate did not significantly alter transpirational water loss.
- Results indicate methyl jasmonate does not primarily modulate stomatal behavior in the short term.
- Barley (Hordeum vulgare L. var Morrison) response to methyl jasmonate differs from other growth regulators.
Conclusions:
- Methyl jasmonate is not a primary short-term modulator of stomatal behavior in barley.
- The mechanism of methyl jasmonate action in barley regarding water loss is not through direct stomatal modulation.
- Further research may explore other pathways for methyl jasmonate effects on barley physiology.
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