scholarly journals The Effect of Volatile Organic Compounds on Different Organisms: Agrobacteria, Plants and Insects

2021 ◽  
Vol 10 (1) ◽  
pp. 69
Author(s):  
Daria E. Sidorova ◽  
Vladimir A. Plyuta ◽  
Darya A. Padiy ◽  
Evgeniya V. Kupriyanova ◽  
Natalia V. Roshina ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Plant Biomass ◽  
Biological Activities ◽  
Isoamyl Alcohol ◽  
Inhibitory Effect ◽  
Plant Seed ◽  
Volatile Organic ◽  
High Doses ◽  
Bacteria And Fungi

Bacteria and fungi emit a huge variety of volatile organic compounds (VOCs) that can provide a valuable arsenal for practical use. However, the biological activities and functions of the VOCs are poorly understood. This work aimed to study the action of individual VOCs on the bacteria Agrobacterium tumefaciens, Arabidopsis thaliana plants, and fruit flies Drosophila melanogaster. VOCs used in the work included ketones, alcohols, and terpenes. The potent inhibitory effect on the growth of A. tumefaciens was shown for 2-octanone and isoamyl alcohol. Terpenes (−)-limonene and (+)-α-pinene practically did not act on bacteria, even at high doses (up to 400 µmol). 2-Butanone and 2-pentanone increased the biomass of A. thaliana at doses of 200–400 μmol by 1.5–2 times; 2-octanone had the same effect at 10 μmol and decreased plant biomass at higher doses. Isoamyl alcohol and 2-phenylethanol suppressed plant biomass several times at doses of 50–100 μmol. Plant seed germination was most strongly suppressed by isoamyl alcohol and 2-phenylethanol. The substantial killing effect (at low doses) on D. melanogaster was exerted by the terpenes and the ketones 2-octanone and 2-pentanone. The obtained data showed new information about the biological activities of VOCs in relation to organisms belonging to different kingdoms.

Emission Factors of Microbial Volatile Organic Compounds from Environmental Bacteria and Fungi

2018 ◽  
Vol 52 (15) ◽  
pp. 8272-8282 ◽  
Author(s):  
Pawel K. Misztal ◽  
Despoina S. Lymperopoulou ◽  
Rachel I. Adams ◽  
Russell A. Scott ◽  
Steven E. Lindow ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Emission Factors ◽  
Volatile Organic ◽  
Microbial Volatile Organic Compounds ◽  
Environmental Bacteria ◽  
Bacteria And Fungi

scholarly journals Identification and analysis of odor-active compounds from Choerospondias axillaris (Roxb.) Burtt et Hill with different moisture content levels and lacquer treatments

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Qifan Wang ◽  
Jun Shen ◽  
Bin Zeng ◽  
Huiyu Wang
Keyword(s):  
Volatile Organic Compounds ◽  
Moisture Content ◽  
Organic Compounds ◽  
Inhibitory Effect ◽  
Waterborne Coating ◽  
Active Compounds ◽  
Antiseptic Solution ◽  
Volatile Organic ◽  
Gas Chromatography Mass Spectroscopy ◽  
Total Volatile Organic Compounds

Abstract The problem of indoor odors can greatly affect a room’s occupants. To identify odorants and comprehensively evaluate emissions from wooden materials, emissions and odors from Choerospondias axillaris (Roxb.) Burtt et Hill with different moisture content percentages and lacquer treatments were investigated in this study. Thermal desorption–gas chromatography–mass spectroscopy/olfactometry was used to analyze the release characteristics. In total, 11 key odor-active compounds were identified as moisture content gradually decreased, concentrating between 15 and 33 min. Total volatile organic compounds, total very volatile organic compounds, and total odor intensity decreased as moisture content decreased. In addition, 35 odor-active compounds, including aromatics, alkenes, aldehydes, esters, and alcohols, were identified in the odor control list. Polyurethane (PU), ultraviolet (UV), and waterborne coatings had a good inhibitory effect on eight odor characteristics, but some scents arose after lacquer treatment. For equilibrium moisture content, the major characteristics of Choerospondias axillaris were fragrant (9.4) and mint-like (3.0) compared with the fragrant (8.2), fruity (7.8), and pleasant (5.8) characteristics of PU coating; the flowery (5.9), fragrant (5.0), glue-like (4.3), and pineapple-like (4.3) characteristics of UV coating; and the antiseptic solution (3.6), fragrant (2.9), cigarette-like (2.8), and fruity (2.5) characteristics of waterborne coating. Based on multicomponent evaluation, a Choerospondias axillaris board with waterborne coating was suggested for use indoors.

scholarly journals Antifungal Effect of Volatile Organic Compounds from Bacillus velezensis CT32 against Verticillium dahliae and Fusarium oxysporum

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1674
Author(s):  
Xinxin Li ◽  
Xiuhong Wang ◽  
Xiangyuan Shi ◽  
Baoping Wang ◽  
Meiping Li ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Volatile Organic Compounds ◽  
Fusarium Oxysporum ◽  
Organic Compounds ◽  
Verticillium Dahliae ◽  
Inhibitory Effect ◽  
Rrna Gene ◽  
Vascular Wilt ◽  
Bacillus Velezensis ◽  
Volatile Organic

The present study focuses on the inhibitory effect of volatile metabolites released by Bacillus velezensis CT32 on Verticillium dahliae and Fusarium oxysporum, the causal agents of strawberry vascular wilt. The CT32 strain was isolated from maize straw compost tea and identified as B. velezensis based on 16S rRNA gene sequence analysis. Bioassays conducted in sealed plates revealed that the volatile organic compounds (VOCs) produced by the strain CT32 possessed broad-spectrum antifungal activity against eight phytopathogenic fungi. The volatile profile of strain CT32 was obtained by headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). A total of 30 volatile compounds were identified, six of which have not previously been detected in bacteria or fungi: (Z)-5-undecene, decyl formate, 2,4-dimethyl-6-tert-butylphenol, dodecanenitrile, 2-methylpentadecane and 2,2’,5,5’-tetramethyl-1,1’-biphenyl. Pure compounds were tested in vitro for their inhibitory effect on the mycelial growth of V. dahliae and F. oxysporum. Decanal, benzothiazole, 3-undecanone, 2-undecanone, 2-undecanol, undecanal and 2,4-dimethyl-6-tert-butylphenol showed high antifungal activity, with benzothiazole and 2,4-dimethyl-6-tert-butylphenol being the most potent compounds. These results indicate that the VOCs produced by B. velezensis CT32 have the potential to be used as a biofumigant for management of vascular wilt pathogens.

scholarly journals Nanoencapsulation of Plant Volatile Organic Compounds to Improve Their Biological Activities

Planta Medica ◽  
2020 ◽  
Author(s):  
Hakmin Mun ◽  
Helen E. Townley
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Biological Activities ◽  
Biological Properties ◽  
Anticancer Activities ◽  
Plant Metabolites ◽  
Secondary Plant Metabolites ◽  
Plant Volatile ◽  
Synthetic Chemicals ◽  
Volatile Organic

AbstractPlant volatile organic compounds (volatiles) are secondary plant metabolites that play crucial roles in the reproduction, defence, and interactions with other vegetation. They have been shown to exhibit a broad range of biological properties and have been investigated for antimicrobial and anticancer activities. In addition, they are thought be more environmentally friendly than many other synthetic chemicals 1. Despite these facts, their applications in the medical, food, and agricultural fields are considerably restricted due to their volatilities, instabilities, and aqueous insolubilities. Nanoparticle encapsulation of plant volatile organic compounds is regarded as one of the best strategies that could lead to the enhancement of the bioavailability and biological activity of the volatile compounds by overcoming their physical limitations and promoting their controlled release and cellular absorption. In this review, we will discuss the biosynthesis and analysis of plant volatile organic compounds, their biological activities, and limitations. Furthermore, different types of nanoparticle platforms used to encapsulate the volatiles and the biological efficacies of nanoencapsulated volatile organic compounds will be covered.

scholarly journals Annulohypoxylon sp. FPYF3050 produces volatile organic compounds against the pine wood nematode, Bursaphelenchus xylophilus

Nematology ◽  
2020 ◽  
Vol 22 (3) ◽  
pp. 245-255
Author(s):  
Hongchang Li ◽  
Guiming Dou ◽  
Mengge Gao ◽  
Fei Ren ◽  
Ruhua Li ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Inhibitory Effect ◽  
Bursaphelenchus Xylophilus ◽  
Gas Chromatography Mass Spectrometry ◽  
Pine Wood Nematode ◽  
Pine Wood ◽  
Volatile Organic ◽  
Nematode Eggs ◽  
Petri Plate

Summary Natural volatiles released by the fungus, Annulohypoxylon sp. FPYF3050, were evaluated against the pine wood nematode (PWN), Bursaphelenchus xylophilus. Our results showed that volatile organic compounds (VOCs) caused 64.1 and 58.4% mortality of second-stage juveniles (J2) and mixed-stages (eggs, J2, third- and fourth-stage juveniles, and adults) of populations of PWN, but no inhibitive effects were detected on nematode eggs in the experiment. Analysis of the gases within the Petri plate by gas chromatography-mass spectrometry (GC-MS) showed a yield of an unique volatile with dominant 1,8-cineole in 77.4% relative area (RA) after 72 h treatment of nematodes with Annulohypoxylon sp. FPYF3050 and Botrytis cinerea. The commercial 1,8-cineole at concentrations of 2, 5, 10 and 15 μl ml−1 was applied to examine nematicidal activity. The results showed that 1,8-cineole had a 40-100% inhibition on the nematode eggs during 48 h treatment, more than 82.9% mortality of J2 after 24 h, 48 h and 96 h, and 18.7-91.9% mortality of the mixed-stage population, depending on the period after exposure. This result indicates that 1,8-cineole in the volatile gas emissions of Annulohypoxylon sp. FPYF3050 may play a crucial inhibitory effect on the pine wood nematode The nematicidal volatile gas from fungi may provide a useful biocontrol agent for controlling B. xylophilus.

scholarly journals Usage of Natural Volatile Organic Compounds as Biological Modulators of Disease

2021 ◽  
Vol 22 (17) ◽  
pp. 9421
Author(s):  
Min-Hee Kim ◽  
Seung-Min Lee ◽  
Ki-Wan An ◽  
Min-Jae Lee ◽  
Dae-Hun Park
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Molecular Mechanisms ◽  
Biological Activities ◽  
Short Review ◽  
Toxic Effects ◽  
Toxicological Assessment ◽  
Drug Candidates ◽  
Administration Routes ◽  
Volatile Organic

Plants produce a wide variety of natural volatile organic compounds (NVOCs), many of which are unique to each species. These compounds serve many purposes, such as fending off herbivores and adapting to changes in temperature and water supply. Interestingly, although NVOCs are synthesized to deter herbivores, many of these compounds have been found to possess several therapeutic qualities, such as promoting nerve stability, enhancing sleep, and suppressing hyperresponsiveness, in addition to acting as antioxidants and anti-inflammatory agents. Therefore, many NVOCs are promising drug candidates for disease treatment and prevention. Given their volatile nature, these compounds can be administered to patients through inhalation, which is often more comfortable and convenient than other administration routes. However, the development of NVOC-based drug candidates requires a careful evaluation of the molecular mechanisms that drive their therapeutic properties to avoid potential adverse effects. Furthermore, even compounds that appear generally safe might have toxic effects depending on their dose, and therefore their toxicological assessment is also critical. In order to enhance the usage of NVOCs this short review focuses not only on the biological activities and therapeutic mode of action of representative NVOCs but also their toxic effects.

scholarly journals The Study of an Ultraviolet Radiation Technique for Removal of the Indoor Air Volatile Organic Compounds and Bioaerosol

2019 ◽  
Vol 16 (14) ◽  
pp. 2557
Author(s):  
Liu ◽  
Tseng ◽  
Wang ◽  
Dai ◽  
Shih
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Air ◽  
Air Pollutants ◽  
Field Studies ◽  
Volatile Organic ◽  
Radiation Technique ◽  
Bacteria And Fungi ◽  
Total Volatile Organic Compounds

This study examined the use of high dosages of ultraviolet germicidal irradiation (UVGI) (253.7 nm) to deal with various concentrations of air pollutants, such as formaldehyde (HCHO), total volatile organic compounds (TVOC), under various conditions of humidity. A number of irradiation methods were applied for various durations in field studies to examine the efficiency of removing HCHO, TVOC, bacteria, and fungi. The removal efficiency of air pollutants (HCHO and bacteria) through long-term exposure to UVGI appears to increase with time. The effects on TVOC and fungi concentration were insignificant in the first week; however, improvements were observed in the second week. No differences were observed regarding the removal of HCHO and TVOC among the various irradiation methods in this study; however significant differences were observed in the removal of bacteria and fungi.

scholarly journals Fast Aqueous Biodegradation of Highly-Volatile Organic Compounds in a Novel Anaerobic Reaction Setup

Environments ◽  
2018 ◽  
Vol 5 (11) ◽  
pp. 115
Author(s):  
Yonhara García-Martínez ◽  
Judith Chirinos ◽  
Christophe Bengoa ◽  
Frank Stüber ◽  
Josep Font ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Substrate Inhibition ◽  
Packed Bed ◽  
Degradation Process ◽  
Inhibitory Effect ◽  
Packed Bed Reactor ◽  
Efficient System ◽  
Biological Activated Carbon ◽  
Volatile Organic

The present work explores the biodegradation of some emerging pollutants (EPs) in an anaerobic slowly-agitated up-flow packed-bed reactor (USPBR) filled with biological activated carbon (BAC). Chlorobenzene (CB) and 2,4-dichlorophenoxyacetic acid (2,4-D) were selected as volatile organic compounds (VOC) and major constituents of many pesticides. Experiments carried out in continuous operation showed that bioconversion up to 90% was achieved for CB and 2,4-D, at space times below 0.6 h and 1.2 h, respectively, at ambient temperature. Overall, removal rates of 0.89 g L−1 d−1 and 0.46 g L−1 d−1 were obtained for CB and 2,4-D, respectively. These results revealed that the degradation of CB and 2,4-D in this anaerobic configuration of bioreactor is an efficient and fast process. The Michaelis–Menten model properly describes the degradation process for CB. Above initial concentrations of 100 mg L−1, 2,4-D presented a considerable inhibitory effect over the biofilm. For this reason, a substrate inhibition factor was included in the Michaelis–Menten equation; the expanded model presented a good fitting to the experimental data, regardless of the inlet concentration. Therefore, USPBR-BAC combination showed to be a highly efficient system for the biodegradation of such compounds.

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