1
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Zakaria FR, Chen CY, Li J, Wang S, Payne GF, Bentley WE. Redox active plant phenolic, acetosyringone, for electrogenetic signaling. Sci Rep 2024; 14:9666. [PMID: 38671069 PMCID: PMC11053109 DOI: 10.1038/s41598-024-60191-7] [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: 08/14/2023] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Redox is a unique, programmable modality capable of bridging communication between biology and electronics. Previous studies have shown that the E. coli redox-responsive OxyRS regulon can be re-wired to accept electrochemically generated hydrogen peroxide (H2O2) as an inducer of gene expression. Here we report that the redox-active phenolic plant signaling molecule acetosyringone (AS) can also induce gene expression from the OxyRS regulon. AS must be oxidized, however, as the reduced state present under normal conditions cannot induce gene expression. Thus, AS serves as a "pro-signaling molecule" that can be activated by its oxidation-in our case by application of oxidizing potential to an electrode. We show that the OxyRS regulon is not induced electrochemically if the imposed electrode potential is in the mid-physiological range. Electronically sliding the applied potential to either oxidative or reductive extremes induces this regulon but through different mechanisms: reduction of O2 to form H2O2 or oxidation of AS. Fundamentally, this work reinforces the emerging concept that redox signaling depends more on molecular activities than molecular structure. From an applications perspective, the creation of an electronically programmed "pro-signal" dramatically expands the toolbox for electronic control of biological responses in microbes, including in complex environments, cell-based materials, and biomanufacturing.
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Affiliation(s)
- Fauziah Rahma Zakaria
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Chen-Yu Chen
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Jinyang Li
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Sally Wang
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Gregory F Payne
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA.
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA.
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA.
- Institute for Bioscience and Biotechnology Research, Rockville, MD, USA.
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA.
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2
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Li Z, Meng S, Qin F, Wang S, Liang J, He X, Lu J. Host root exudates initiate a foraging preference by the root parasite Santalum album. TREE PHYSIOLOGY 2023; 43:301-314. [PMID: 36209450 DOI: 10.1093/treephys/tpac116] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Haustoria of root-parasitic plants draw nutrients from the roots of host species. While recent studies have assessed host preferences of parasitic plants, how root-exuded chemicals can mediate host tropism and selection by root-parasitic plants is poorly understood. Under greenhouse conditions, we performed two pot experiments to determine whether the root parasite Santalum album selectively forages for superior hosts (N2-fixing Acacia confusa Merr. or Dalbergia odorifera T. Chen) rather than for inferior hosts (non-N2-fixing Bischofia polycarpa (levl.) Airy Shaw or Dracontomelon duperreranum Pierre), and whether S. album uses host root exudates and/or specific chemicals in these root exudates to locate and trigger haustorium formation. Lateral roots and haustoria of S. album seedlings exhibited greater growth in the direction of D. odorifera roots than toward roots from the other three hosts. Comparative metabolic analysis revealed that D. odorifera root exudates were enriched in isoflavonoid, flavonoid and flavone/flavonol biosynthesis pathways, and that the relative contents of flavonoids were significantly greater in the root exudates of D. odorifera than in those of the other three hosts. Root exudates from D. odorifera significantly promoted S. album root growth, haustorium formation and reactive oxygen species accumulation in haustoria. Our results demonstrate that the key step in plant parasitism by S. album is based on root exudation by a host plant; the exudates function as a metabolite signal that activate lateral root growth and haustorium formation. Our results also indicate that flavonoids in the root exudates could play an important role in S. album foraging activity. Information on the responses of root parasites to host root exudates and/or haustorium-inducing chemicals may be useful for selecting superior host species to plant with valuable species of root parasites.
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Affiliation(s)
- Zhenshuang Li
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Tropical Forestry, Chinese Academy of Forestry, 682 Guangshan 1st Road, Guangdong 510520, China
| | - Sen Meng
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Tropical Forestry, Chinese Academy of Forestry, 682 Guangshan 1st Road, Guangdong 510520, China
| | - Fangcuo Qin
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Tropical Forestry, Chinese Academy of Forestry, 682 Guangshan 1st Road, Guangdong 510520, China
| | - Shengkun Wang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Tropical Forestry, Chinese Academy of Forestry, 682 Guangshan 1st Road, Guangdong 510520, China
| | - Junfeng Liang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Tropical Forestry, Chinese Academy of Forestry, 682 Guangshan 1st Road, Guangdong 510520, China
| | - Xinhua He
- School of Biological Sciences, University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia
- Department of Land, Air and Water Resources, University of California at Davis, One Shield Avenue, Davis, CA 95616, USA
| | - Junkun Lu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Tropical Forestry, Chinese Academy of Forestry, 682 Guangshan 1st Road, Guangdong 510520, China
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3
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VanArsdale E, Navid A, Chu MJ, Halvorsen TM, Payne GF, Jiao Y, Bentley WE, Yung MC. Electrogenetic signaling and information propagation for controlling microbial consortia via programmed lysis. Biotechnol Bioeng 2023; 120:1366-1381. [PMID: 36710487 DOI: 10.1002/bit.28337] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 01/31/2023]
Abstract
To probe signal propagation and genetic actuation in microbial consortia, we have coopted the components of both redox and quorum sensing (QS) signaling into a communication network for guiding composition by "programming" cell lysis. Here, we use an electrode to generate hydrogen peroxide as a redox cue that determines consortia composition. The oxidative stress regulon of Escherichia coli, OxyR, is employed to receive and transform this signal into a QS signal that coordinates the lysis of a subpopulation of cells. We examine a suite of information transfer modalities including "monoculture" and "transmitter-receiver" models, as well as a series of genetic circuits that introduce time-delays for altering information relay, thereby expanding design space. A simple mathematical model aids in developing communication schemes that accommodate the transient nature of redox signals and the "collective" attributes of QS signals. We suggest this platform methodology will be useful in understanding and controlling synthetic microbial consortia for a variety of applications, including biomanufacturing and biocontainment.
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Affiliation(s)
- Eric VanArsdale
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA.,Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, Maryland, USA.,Fischell Institute of Biomedical Devices, University of Maryland, College Park, Maryland, USA
| | - Ali Navid
- Lawrence Livermore National Laboratory, Biosciences and Biotechnology Division, Livermore, California, USA
| | - Monica J Chu
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA.,Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, Maryland, USA.,Fischell Institute of Biomedical Devices, University of Maryland, College Park, Maryland, USA
| | - Tiffany M Halvorsen
- Lawrence Livermore National Laboratory, Biosciences and Biotechnology Division, Livermore, California, USA
| | - Gregory F Payne
- Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, Maryland, USA.,Fischell Institute of Biomedical Devices, University of Maryland, College Park, Maryland, USA
| | - Yongqin Jiao
- Lawrence Livermore National Laboratory, Biosciences and Biotechnology Division, Livermore, California, USA
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA.,Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, Maryland, USA.,Fischell Institute of Biomedical Devices, University of Maryland, College Park, Maryland, USA
| | - Mimi C Yung
- Lawrence Livermore National Laboratory, Biosciences and Biotechnology Division, Livermore, California, USA
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4
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Network-Based Redox Communication Between Abiotic Interactive Materials. iScience 2022; 25:104548. [PMID: 35747390 PMCID: PMC9209720 DOI: 10.1016/j.isci.2022.104548] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/28/2022] [Accepted: 06/02/2022] [Indexed: 11/29/2022] Open
Abstract
Recent observations that abiotic materials can engage in redox-based interactive communication motivates the search for new redox-active materials. Here we fabricated a hydrogel from a four-armed thiolated polyethylene glycol (PEG-SH) and the bacterial metabolite, pyocyanin (PYO). We show that: (i) the PYO-PEG hydrogel is reversibly redox-active; (ii) the molecular-switching and directed electron flow within this PYO-PEG hydrogel requires both a thermodynamic driving force (i.e., potential difference) and diffusible electron carriers that serve as nodes in a redox network; (iii) this redox-switching and electron flow is controlled by the redox network’s topology; and (iv) the ability of the PYO-PEG hydrogel to “transmit” electrons to a second insoluble redox-active material (i.e., a catechol-PEG hydrogel) is context-dependent (i.e., dependent on thermodynamic driving forces and appropriate redox shuttles). These studies provide an experimental demonstration of important features of redox-communication and also suggest technological opportunities for the fabrication of interactive materials. Thiol-pyocyanin reaction was used to create a redox-active and interactive hydrogel The electron flow and molecular switching requires diffusible mediators These mediators and pyocyanin hydrogel serve as “nodes” in a redox reaction network The networked flow of electrons between two separated hydrogels is reported
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5
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Berrios L, Rentsch JD. Linking Reactive Oxygen Species (ROS) to Abiotic and Biotic Feedbacks in Plant Microbiomes: The Dose Makes the Poison. Int J Mol Sci 2022; 23:ijms23084402. [PMID: 35457220 PMCID: PMC9030523 DOI: 10.3390/ijms23084402] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/13/2022] [Accepted: 04/13/2022] [Indexed: 12/13/2022] Open
Abstract
In nature, plants develop in complex, adaptive environments. Plants must therefore respond efficiently to environmental stressors to maintain homeostasis and enhance their fitness. Although many coordinated processes remain integral for achieving homeostasis and driving plant development, reactive oxygen species (ROS) function as critical, fast-acting orchestrators that link abiotic and biotic responses to plant homeostasis and development. In addition to the suite of enzymatic and non-enzymatic ROS processing pathways that plants possess, they also rely on their microbiota to buffer and maintain the oxidative window needed to balance anabolic and catabolic processes. Strong evidence has been communicated recently that links ROS regulation to the aggregated function(s) of commensal microbiota and plant-growth-promoting microbes. To date, many reports have put forth insightful syntheses that either detail ROS regulation across plant development (independent of plant microbiota) or examine abiotic–biotic feedbacks in plant microbiomes (independent of clear emphases on ROS regulation). Here we provide a novel synthesis that incorporates recent findings regarding ROS and plant development in the context of both microbiota regulation and plant-associated microbes. Specifically, we discuss various roles of ROS across plant development to strengthen the links between plant microbiome functioning and ROS regulation for both basic and applied research aims.
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Affiliation(s)
- Louis Berrios
- Department of Biology, Stanford University, Stanford, CA 94305, USA
- Correspondence:
| | - Jeremy D. Rentsch
- Department of Biology, Francis Marion University, Florence, SC 29502, USA;
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6
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Zhao Z, Ozcan EE, VanArsdale E, Li J, Kim E, Sandler AD, Kelly DL, Bentley WE, Payne GF. Mediated Electrochemical Probing: A Systems-Level Tool for Redox Biology. ACS Chem Biol 2021; 16:1099-1110. [PMID: 34156828 DOI: 10.1021/acschembio.1c00267] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Biology uses well-known redox mechanisms for energy harvesting (e.g., respiration), biosynthesis, and immune defense (e.g., oxidative burst), and now we know biology uses redox for systems-level communication. Currently, we have limited abilities to "eavesdrop" on this redox modality, which can be contrasted with our abilities to observe and actuate biology through its more familiar ionic electrical modality. In this Perspective, we argue that the coupling of electrochemistry with diffusible mediators (electron shuttles) provides a unique opportunity to access the redox communication modality through its electrical features. We highlight previous studies showing that mediated electrochemical probing (MEP) can "communicate" with biology to acquire information and even to actuate specific biological responses (i.e., targeted gene expression). We suggest that MEP may reveal an extent of redox-based communication that has remained underappreciated in nature and that MEP could provide new technological approaches for redox biology, bioelectronics, clinical care, and environmental sciences.
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Affiliation(s)
- Zhiling Zhao
- Institute for Bioscience & Biotechnology Research, University of Maryland, College Park, Maryland 20742, United States
- Robert E. Fischell Biomedical Device Institute, University of Maryland, College Park, Maryland 20742, United States
| | - Evrim E. Ozcan
- Institute for Bioscience & Biotechnology Research, University of Maryland, College Park, Maryland 20742, United States
| | - Eric VanArsdale
- Institute for Bioscience & Biotechnology Research, University of Maryland, College Park, Maryland 20742, United States
- Robert E. Fischell Biomedical Device Institute, University of Maryland, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, United States
| | - Jinyang Li
- Institute for Bioscience & Biotechnology Research, University of Maryland, College Park, Maryland 20742, United States
- Robert E. Fischell Biomedical Device Institute, University of Maryland, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, United States
| | - Eunkyoung Kim
- Institute for Bioscience & Biotechnology Research, University of Maryland, College Park, Maryland 20742, United States
- Robert E. Fischell Biomedical Device Institute, University of Maryland, College Park, Maryland 20742, United States
| | - Anthony D. Sandler
- Department of General and Thoracic Surgery, Children’s National Hospital, Washington, D.C. 20010, United States
| | - Deanna L. Kelly
- Maryland Psychiatric Research Center, University of Maryland School of Medicine, Baltimore, Maryland 21228, United States
| | - William E. Bentley
- Institute for Bioscience & Biotechnology Research, University of Maryland, College Park, Maryland 20742, United States
- Robert E. Fischell Biomedical Device Institute, University of Maryland, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, United States
| | - Gregory F. Payne
- Institute for Bioscience & Biotechnology Research, University of Maryland, College Park, Maryland 20742, United States
- Robert E. Fischell Biomedical Device Institute, University of Maryland, College Park, Maryland 20742, United States
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7
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Folcik AM, Cutshaw K, Haire T, Goode J, Shah P, Zaidi F, Richardson B, Palmer A. Quorum Sensing Behavior in the Model Unicellular Eukaryote Chlamydomonas reinhardtii. iScience 2020; 23:101714. [PMID: 33196031 PMCID: PMC7644740 DOI: 10.1016/j.isci.2020.101714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/25/2020] [Accepted: 10/16/2020] [Indexed: 10/25/2022] Open
Abstract
Microbial communities display behavioral changes in response to variable environmental conditions. In some bacteria, motility increases as a function of cell density, allowing for population dispersal before the onset of nutrient scarcity. Utilizing automated particle tracking, we now report on a population-dependent increase in the swimming speeds of the photosynthetic unicellular eukaryotes Chlamydomonas reinhardtii and C. moewussi. Our findings confirm that this acceleration in swimming speed arises as a function of culture density, rather than with age and/or nutrient availability. Furthermore, this phenomenon depends on the synthesis and detection of a low-molecular-weight compound which can be transferred between cultures and stimulates comparable effects across both species, supporting the existence of a conserved phenomenon, not unlike bacterial quorum sensing, among members of this genus. The potential expansion of density-dependent phenomena to a new group of unicellular eukaryotes provides important insight into how microbial populations evolve and regulate "social" behaviors.
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Affiliation(s)
- Alexandra M Folcik
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, USA
| | - Kirstin Cutshaw
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, USA
| | - Timothy Haire
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, USA
| | - Joseph Goode
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, USA
| | - Pooja Shah
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, USA
| | - Faizan Zaidi
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, USA
| | - Brianna Richardson
- Department of Aerospace, Physics, and Space Sciences, Florida Institute of Technology, Melbourne, FL, USA
| | - Andrew Palmer
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, USA.,Department of Ocean Engineering and Marine Sciences, Florida Institute of Technology, Melbourne, FL, USA.,Aldrin Space Institute, Florida Institute of Technology, Melbourne, FL, USA
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8
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Liu S, Lin YH, Murphy A, Anderson J, Walker N, Lynn DG, Binns AN, Pierce BD. Mapping Reaction-Diffusion Networks at the Plant Wound Site With Pathogens. FRONTIERS IN PLANT SCIENCE 2020; 11:1074. [PMID: 32765558 PMCID: PMC7379035 DOI: 10.3389/fpls.2020.01074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
The rich collection of microbes colonizing the plant root making up the rhizosphere function as a multigenomic organ for nutrient distribution. The extent to which its dynamic mutualistic cellular order depends on morphogenic signaling, while likely, remains unknown. We have shown that reaction-diffusion chemical networks constructed with model plant and bacterial metabolites can mimic processes ranging from oxidative burst kinetics to traveling waves and extracellular stationary state reaction-diffusion networks for spatiotemporal ordering of the rhizosphere. Plant parasites and pathogens can be limited by host attachment require dynamic informational networks and continue to provide insight into what controls the rhizosphere. Here we take advantage of Agrobacterium tumefaciens, a plant pathogen with a gated receptor that requires simultaneous perception of two plant metabolites. Genetic manipulations have created receptors allowing each metabolite concentration to be correlated with pathogen behavior. The development of the florescent strains used here provide initial maps of the reaction-diffusion dynamics existing in the rhizosphere, revealing significant differences in the signaling landscape of host and non-host plants before and after wounding, specifically highlighting networks that may inform rhizosphere organization.
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Affiliation(s)
- Stephanie Liu
- Departments of Chemistry and Biology, Emory University, Atlanta, GA, United States
| | - Yi-Han Lin
- Departments of Chemistry and Biology, Emory University, Atlanta, GA, United States
- Infectious Diseases and Genomic Medicine Group, J Craig Venter Institute, Rockville, MD, United States
| | - Aidan Murphy
- Department of Biology, University of Richmond, Richmond, VA, United States
| | - Josh Anderson
- Department of Biology, University of Richmond, Richmond, VA, United States
| | - Nicole Walker
- Department of Biology, University of Richmond, Richmond, VA, United States
| | - David G. Lynn
- Departments of Chemistry and Biology, Emory University, Atlanta, GA, United States
| | - Andrew N. Binns
- Department of Biology, University of Pennsylvania, Philadelphia, PA, United States
| | - B. Daniel Pierce
- Department of Biology, University of Richmond, Richmond, VA, United States
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9
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Wada S, Cui S, Yoshida S. Reactive Oxygen Species (ROS) Generation Is Indispensable for Haustorium Formation of the Root Parasitic Plant Striga hermonthica. FRONTIERS IN PLANT SCIENCE 2019; 10:328. [PMID: 30967886 PMCID: PMC6438919 DOI: 10.3389/fpls.2019.00328] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/28/2019] [Indexed: 05/10/2023]
Abstract
The parasitic witchweed Striga hermonthica causes devastating damage to crops in sub-Saharan Africa, yet the mechanism of its parasitism is not well understood. Parasitic plants form a special organ called a haustorium to obtain water and nutrients from host plants. The haustorium is induced by host-derived small molecules, collectively named haustorium-inducing factors (HIFs). The most active HIF known to date is 2,6-dimethoxy-p-benzoquinone (DMBQ), originally isolated from sorghum root extracts. It has been suggested that DMBQ is produced by oxidation of its precursor, syringic acid, and that reactive oxygen species (ROS) and peroxidases are involved in the process. However, the roles of ROS in haustorium formation after HIF recognition remain to be elucidated. Here, we investigated the effects of various inhibitors of ROS and ROS-regulating enzymes on haustorium formation in S. hermonthica. Inhibitors of NADPH oxidases and peroxidases inhibited haustorium formation during treatment with DMBQ, syringic acid, and host root extracts, suggesting that ROS production and/or regulation via NADPH oxidases and peroxidases are essential for haustorium formation. We observed hydrogen peroxide accumulation in the haustorium upon treatment with various HIFs. Our results suggest that ROS and ROS-regulating enzymes are indispensable in downstream signaling of HIFs for haustorium formation.
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Affiliation(s)
- Syogo Wada
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
| | - Songkui Cui
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
- Division for Research Strategy, Institute for Research Initiatives, Nara Institute of Science and Technology, Ikoma, Japan
| | - Satoko Yoshida
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Japan
- Division for Research Strategy, Institute for Research Initiatives, Nara Institute of Science and Technology, Ikoma, Japan
- *Correspondence: Satoko Yoshida
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10
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Taran O, Patel V, Lynn DG. Small molecule reaction networks that model the ROS dynamics of the rhizosphere. Chem Commun (Camb) 2019; 55:3602-3605. [DOI: 10.1039/c8cc08940j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Molecules released by plants and bacteria form complex abiotic reaction diffusion networks that might regulate the ROS dynamics along the roots of the plants.
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Affiliation(s)
- Olga Taran
- Departments of Chemistry and Biology
- Emory University
- USA
| | - Vraj Patel
- Departments of Chemistry and Biology
- Emory University
- USA
| | - David G. Lynn
- Departments of Chemistry and Biology
- Emory University
- USA
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