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Related Experiment Video

Updated: Jan 22, 2026

Using High Resolution Computed Tomography to Visualize the Three Dimensional Structure and Function of Plant Vasculature

Using High Resolution Computed Tomography to Visualize the Three Dimensional Structure and Function of Plant Vasculature

Published on: April 5, 2013

Atmospheric H₂S: Impact on Plant Functioning.

Ties Ausma¹, Luit J De Kok¹

¹Laboratory of Plant Physiology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands.

Frontiers in Plant Science

|July 3, 2019

Summary

Plants absorb airborne hydrogen sulfide (H₂S), which paradoxically impacts their physiology. Foliar H₂S uptake can downregulate root sulfate metabolism, offering insights into plant sulfur homeostasis.

Keywords:

Brassica air pollution glutathione hydrogen sulfide sulfur metabolism

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Extraction and Characterization of Surfactants from Atmospheric Aerosols

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Published on: April 21, 2017

Area of Science:

Plant physiology
Environmental science
Biochemistry

Background:

Hydrogen sulfide (H₂S) is an air pollutant with complex effects on plants.
Plants can absorb atmospheric H₂S through foliage, meeting sulfur requirements.
High H₂S levels can be phytotoxic, but realistic levels contribute to plant sulfur needs.

Purpose of the Study:

To investigate the paradoxical effects of airborne hydrogen sulfide (H₂S) on plant physiology.
To explore the relationship between H₂S metabolism and plant susceptibility.
To understand how foliar H₂S uptake influences sulfate metabolism and sulfur homeostasis.

Main Methods:

Foliar fumigation experiments with H₂S.
Studies on plants from the *Brassica* genus.
Analysis of H₂S and sulfate metabolism rates.
Investigation of sulfur homeostasis regulation.

Main Results:

H₂S uptake by foliage does not correlate with H₂S susceptibility, suggesting it's not a primary detoxification mechanism.
Foliar H₂S absorption significantly downregulates sulfate metabolism in roots.
Studies in *Brassica* plants elucidated the mechanisms behind this downregulation.

Conclusions:

Plant H₂S metabolism is distinct from detoxification pathways.
Foliar H₂S uptake influences root sulfate assimilation, impacting overall sulfur homeostasis.
H₂S fumigation is a valuable tool for studying plant sulfur metabolism and signaling.