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Updated: May 3, 2026
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Assessing Stomatal Response to Live Bacterial Cells using Whole Leaf Imaging
Published on: October 2, 2010
20.7K
[Stomatal opening in the dark at high temperatures].
1Institut für allgemeine Botanik der Universität Zürich, Künstlergasse 16, CH 8006, Zürich, Switzerland.
Planta
|January 21, 2014
Summary
Piper betle L. stomata open at high temperatures (above 40°C) in the dark, indicating a heat resistance mechanism. This stomatal response is crucial for plant survival under heat stress.
Area of Science:
- Plant Physiology
- Environmental Stress Biology
Context:
- Piper betle L. (betel leaf) is a commercially important plant.
- Understanding plant responses to high temperatures is vital for agriculture.
Purpose:
- To investigate the stomatal behavior of Piper betle L. at elevated temperatures in the dark.
- To determine the relationship between leaf temperature, humidity, and stomatal opening.
Summary:
- Simultaneous measurements of water transport and stomatal opening in Piper betle L. were conducted.
- Stomata remained closed at 36-38°C in the dark but opened rapidly above 40°C.
- High stomatal opening in the dark at elevated temperatures was observed, influenced by humidity and independent of light/dark cycles.
Impact:
- Findings suggest stomatal reactions at high temperatures significantly affect heat resistance in Piper betle L.
- The study provides evidence for a thermoregulatory mechanism in betel leaf plants.
- Results correlate transpiration-derived stomatal conductance with microscopic analysis.
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