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Sheikh TMM, Chen J, Wang L, Zhou D, Deng S, Velasco de Castro Oliveira J, Raza W, Wei L, Daly P. Applications of Pythium- and Phytophthora-produced volatiles in plant disease control. Appl Microbiol Biotechnol 2024; 108:479. [PMID: 39361130 PMCID: PMC11450046 DOI: 10.1007/s00253-024-13312-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 09/13/2024] [Accepted: 09/16/2024] [Indexed: 10/06/2024]
Abstract
Volatile organic compounds (VOCs) mediate biological interactions and are produced by Pythium and Phytophthora species. These VOCs are biotechnologically relevant because the genera include important plant pathogens, whereby VOCs can aid in disease detection, and biological control agents, whereby VOCs contribute to disease control. Studies on VOC production, identification, and characterization of individual VOCs produced by Pythium and Phytophthora species are reviewed. VOCs detected in plants infected with Phytophthora species are also reviewed as potentially oomycete-derived VOCs. The Pythium- and Phytophthora-produced VOCs are compared with other microorganisms, and the main effects of these VOCs on microbial inhibition and plant-mediated effects are reviewed. These effects are summarized from direct demonstration studies and inferences based on the known functions of the identified Pythium- and Phytophthora-produced VOCs. There are two main applications of VOCs to plant disease control: the use of VOCs to detect pathogenic Pythium and Phytophthora species, e.g., e-nose detecting systems, and the use of VOC-producing biological control agents, e.g., Pythium oligandrum. Future research could understand how the VOCs are produced to engineer VOC levels in strains, analyze more oomycete species and strains, accurately quantify the VOCs produced, and exploit recent developments in analytical chemistry technology. KEY POINTS: • Compiled inventory of volatiles produced by Phytophthora and Pythium species • Volatilomes contain microbe-inhibiting and plant growth-promoting compounds • Volatile potential in disease detection and control supports analyzing more species.
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Affiliation(s)
- Taha Majid Mahmood Sheikh
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St, Nanjing, 210014, China
- Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, China
| | - Jinhao Chen
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan, China
| | - Lunji Wang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan, China
| | - Dongmei Zhou
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St, Nanjing, 210014, China
| | - Sheng Deng
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St, Nanjing, 210014, China
| | | | - Waseem Raza
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Center for Organic-Based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, China
| | - Lihui Wei
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St, Nanjing, 210014, China.
| | - Paul Daly
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St, Nanjing, 210014, China.
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Blakley B, Zlibut E, Gupta RM, May JC, McLean JA. Direct Enantiomer Differentiation of Drugs and Drug-Like Compounds via Noncovalent Copper-Amino Acid Complexation and Ion Mobility-Mass Spectrometry. Anal Chem 2024; 96:12892-12900. [PMID: 39051631 PMCID: PMC11307251 DOI: 10.1021/acs.analchem.4c02710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024]
Abstract
Drug enantiomers can possess vastly different pharmacological properties, yet they are identical in their chemical composition and structural connectivity. Thus, resolving enantiomers poses a great challenge in the field of separation science. Enantiomer separations necessitate interaction of the analyte with a chiral environment─in mass spectrometry-based analysis, a common approach is through a three-point interaction with a chiral selector commonly introduced during sample preparation. In select cases, the structural difference imparted through noncovalent complexation results in enantiomer-specific structural differences, facilitating measurement using a structurally selective analytical technique such as ion mobility-mass spectrometry (IM-MS). In this work, we investigate the direct IM-MS differentiation of chiral drug compounds using mononuclear copper complexes incorporating an amino acid chiral selector. A panel of 20 chiral drugs and drug-like compounds were investigated for separation, and four l-amino acids (l-histidine, l-tryptophan, l-proline, and l-tyrosine) were evaluated as chiral selectors (CS) to provide the chiral environment necessary for differentiation. Enantiomer differentiation was achieved for four chiral molecule pairs (R/S-thalidomide, R/S-baclofen, R/S-metoprolol, and d/l-panthenol) with two-peak resolution (Rp-p) values ranging from 0.7 (>10% valley) to 1.5 (baseline separation). Calibration curves relating IM peak areas to enantiomeric concentrations enabled enantiomeric excess quantitation of racemic thalidomide and metoprolol with residuals of 5.7 and 2.5%, respectively. Theoretical models suggest that CuII and l-histidine complexation around the analyte chiral center is important for gas-phase stereoselectivity. This study demonstrates the potential of combining enantioselective noncovalent copper complexation with structurally selective IM-MS for differentiating chiral drugs and drug-like compounds.
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Affiliation(s)
- Benjamin
K. Blakley
- Department of Chemistry, Center for
Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt-Ingram
Cancer Center, and Vanderbilt Institute for Integrated Biosystems
Research and Education, Vanderbilt University, Nashville, Tennessee 37235-1822, United
States
| | | | - Rashi M. Gupta
- Department of Chemistry, Center for
Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt-Ingram
Cancer Center, and Vanderbilt Institute for Integrated Biosystems
Research and Education, Vanderbilt University, Nashville, Tennessee 37235-1822, United
States
| | - Jody C. May
- Department of Chemistry, Center for
Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt-Ingram
Cancer Center, and Vanderbilt Institute for Integrated Biosystems
Research and Education, Vanderbilt University, Nashville, Tennessee 37235-1822, United
States
| | - John A. McLean
- Department of Chemistry, Center for
Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt-Ingram
Cancer Center, and Vanderbilt Institute for Integrated Biosystems
Research and Education, Vanderbilt University, Nashville, Tennessee 37235-1822, United
States
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Sanderson K. Mirror-image molecules separated using workhorse of chemistry. Nature 2024:10.1038/d41586-024-00384-2. [PMID: 38332197 DOI: 10.1038/d41586-024-00384-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
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