Emission and Function of Plant-Originated Volatile Organic Compounds

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: closed (18 October 2024) | Viewed by 1888

Special Issue Editor


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Guest Editor
PLECO (Plants and Ecosystems), Department of Biology, University of Antwerp, 2610 Antwerpen, Belgium
Interests: volatile organic compound emission; proton-transfer-reaction mass spectrometry (PTR-MS); proton-transfer-reaction time-of-flight mass spectrometry (PTR-TOF-MS); plant abiotic stress; plant biotic stress; gas-exchange chamber; photosynthesis
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Special Issue Information

Dear Colleagues,

We are inviting contributions that advance our understanding of the diverse world of plant-originated volatile organic compounds. Plants emit a rich array of VOCs (volatile organic compounds) that play pivotal roles in ecological interactions, atmospheric chemistry, and plant physiology. This Special Issue aims to compile cutting-edge research that explores the emission mechanisms, ecological functions, and chemical diversity of VOCs.

Researchers are encouraged to submit papers on a broad spectrum of topics related to VOCs, including but not limited to the following:

  1. Emission Mechanisms: Investigating the biosynthesis, regulation, and release of VOCs, as well as the environmental factors influencing emissions;
  2. Ecological Interactions: Exploring the roles of VOCs in plant–herbivore, plant–pollinator, and plant–microbe interactions (soil, phyllosphere, etc.) and their impacts on community dynamics;
  3. Atmospheric Chemistry: Assessing the contribution of VOCs to atmospheric processes, such as aerosol formation and ozone production, and their implications for air quality and climate;
  4. Chemical Diversity: Characterizing the chemical diversity of VOCs across plant species and understanding the underlying genetic and biochemical mechanisms;
  5. Applied Perspectives: Investigating the potential applications of VOCs in agriculture, pest management, and pharmaceuticals.

We welcome original research articles, reviews, and methodological papers that advance our knowledge of VOCs, thus promoting interdisciplinary collaboration in this rapidly evolving field.

Dr. Miguel Portillo-Estrada
Guest Editor

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Keywords

  • abiotic stress
  • atmospheric chemistry
  • biosynthesis
  • chemical diversity
  • ecological interactions
  • plant communication
  • plant–herbivore interactions
  • plant–microbe interactions
  • volatile organic compounds

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Published Papers (2 papers)

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Research

10 pages, 1752 KiB  
Article
Effect of Higher Ethylene Levels Emitted by Shade-Avoider Plants on Neighboring Seedlings
by Mikel Urdin-Bravo, Angela Sanchez-Garcia, Manuel Rodriguez-Concepcion and Jaume F. Martinez-Garcia
Plants 2024, 13(22), 3212; https://doi.org/10.3390/plants13223212 - 15 Nov 2024
Viewed by 493
Abstract
Plants of several species, including crops, change their volatilome when exposed to a low ratio of red to far-red light (low R/FR) that informs about the presence of nearby plants (i.e., proximity shade). In particular, the volatile hormone ethylene was shown to be [...] Read more.
Plants of several species, including crops, change their volatilome when exposed to a low ratio of red to far-red light (low R/FR) that informs about the presence of nearby plants (i.e., proximity shade). In particular, the volatile hormone ethylene was shown to be produced at higher levels in response to the low R/FR signal in shade-avoider plants. Here, we show that the shade-tolerant species Cardamine hirsuta produces more ethylene than shade avoiders such as Arabidopsis thaliana (a close relative of C. hirsuta) and tomato (Solanum lycopersicum) under white light (W). However, exposure to low R/FR (specifically to FR-supplemented W, referred to as W+FR or simulated shade) resulted in only a slight increase in ethylene emission in C. hirsuta compared to shade avoiders. Stimulation of ethylene production by growing plants in media supplemented with 1-aminocyclopropane-1-carboxylate (ACC) resulted in reduced hypocotyl growth under W+FR in both A. thaliana and C. hirsuta. ACC-dependent ethylene production also repressed hypocotyl elongation under low W and in the dark in C. hirsuta. By contrast, in A. thaliana, ACC supplementation inhibited hypocotyl elongation in the dark but stimulated it under W. Most interestingly, elongation of dark-grown A. thaliana seedlings was also repressed by exposure to the volatiles released by ACC-grown A. thaliana or tomato plants. This observation suggests that increased ethylene levels in the headspace can indeed impact the development of nearby plants. Although the amount of ethylene released by ACC-grown plants to their headspace was much higher than that released by exposure to low R/FR, our results support a contribution of this volatile hormone on the communication of proximity shade conditions to neighboring plants. Full article
(This article belongs to the Special Issue Emission and Function of Plant-Originated Volatile Organic Compounds)
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17 pages, 272 KiB  
Article
Chemical Composition of Volatile and Extractive Organic Compounds in the Inflorescence Litter of Five Species of Woody Plants
by Valery A. Isidorov and Jolanta Masłowiecka
Plants 2024, 13(13), 1829; https://doi.org/10.3390/plants13131829 - 3 Jul 2024
Viewed by 842
Abstract
The decomposition of plant litter, most of which is found in forests, is an important element of the global carbon cycle, as a result of which carbon enters the atmosphere in the form of not only CO2 but also volatile organic compounds [...] Read more.
The decomposition of plant litter, most of which is found in forests, is an important element of the global carbon cycle, as a result of which carbon enters the atmosphere in the form of not only CO2 but also volatile organic compounds (VOCs). Although the formation of litter is associated with autumn cooling, in the spring, there is a very intense fall of faded inflorescences of woody plants. This study examined the chemical composition of the litter and VOCs emitted from decaying inflorescences of four species of forest-forming trees: silver birch, European hornbeam, black alder and aspen. All litter emissions consisted of 291 VOCs, mainly terpenes actively participating in atmospheric processes. The detection of a number of typical mushroom metabolites, such as 1-octen-3-ol, known as “mushroom alcohol”, and alkyl sulphides, suggests that inflorescence-derived VOCs are a mixture of components of plant and microbial origin. In methanol extracts of the fallen inflorescences of all types, 263 organic compounds were identified, the majority of which were related to carbohydrates. Their share in the extracts was 72–76%. In general, the composition of the extractive compounds indicates the easy availability of this material for assimilation by various types of destructors. Full article
(This article belongs to the Special Issue Emission and Function of Plant-Originated Volatile Organic Compounds)
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