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Velichko NS, Kokoulin MS, Dmitrenok PS, Grinev VS, Kuchur PD, Komissarov AS, Fedonenko YP. Lipopolysaccharides of Herbaspirillum species and their relevance for bacterium-host interactions. Int J Biol Macromol 2024; 261:129516. [PMID: 38278393 DOI: 10.1016/j.ijbiomac.2024.129516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/14/2023] [Accepted: 01/13/2024] [Indexed: 01/28/2024]
Abstract
The lipopolysaccharides of Herbaspirillum lusitanum P6-12T (HlP6-12T) and H. frisingense GSF30T (HfGSF30T) was isolated by phenol-water extraction from bacterial cells and was characterized using chemical analysis and SDS-PAGE. It was shown that these bacteria produce LPSs that differ in their physicochemical properties and macromolecular organization. In this paper, the lipid A structure of the HlP6-12T LPS, was characterized through chemical analyses and matrix-assisted laser desorption ionization (MALDI) mass spectrometry. To prove the effect of the size of micelles on their bioavailability, we examined the activity of both LPSs toward the morphology of wheat seedlings. Analysis of the HlP6-12T and HfGSF30T genomes showed no significant differences between the operons that encode proteins involved in the biosynthesis of the lipids A and core oligosaccharides. The difference may be due to the composition of the O-antigen operon. HfGSF30T has two copies of the rfb operon, with the main one divided into two fragments. In contrast, the HlP6-12T genome contains only a single rfb-containing operon, and the other O-antigen operons are not comparable at all. The integrity of O-antigen-related genes may also affect LPS variability of. Specifically, we have observed a hairpin structure in the middle of the O-antigen glycosyltransferase gene, which led to the division of the gene into two fragments, resulting in incorrect protein synthesis and potential abnormalities in O-antigen production.
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Affiliation(s)
- Natalya S Velichko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov 410049, Russia.
| | - Maxim S Kokoulin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159 Prospekt 100 Let Vladivostoku, Vladivostok 690022, Russia
| | - Pavel S Dmitrenok
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159 Prospekt 100 Let Vladivostoku, Vladivostok 690022, Russia
| | - Vyacheslav S Grinev
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov 410049, Russia; Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russia
| | - Polina D Kuchur
- Applied Genomics Laboratory, SCAMT Institute, ITMO University, 9 Ulitsa Lomonosova, St. Petersburg 191002, Russia
| | - Aleksey S Komissarov
- Applied Genomics Laboratory, SCAMT Institute, ITMO University, 9 Ulitsa Lomonosova, St. Petersburg 191002, Russia
| | - Yulia P Fedonenko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov 410049, Russia; G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159 Prospekt 100 Let Vladivostoku, Vladivostok 690022, Russia
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Lipopolysaccharide O-antigen molecular and supramolecular modifications of plant root microbiota are pivotal for host recognition. Carbohydr Polym 2022; 277:118839. [PMID: 34893256 DOI: 10.1016/j.carbpol.2021.118839] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/29/2021] [Accepted: 10/29/2021] [Indexed: 11/22/2022]
Abstract
Lipopolysaccharides, the major outer membrane components of Gram-negative bacteria, are crucial actors of the host-microbial dialogue. They can contribute to the establishment of either symbiosis or bacterial virulence, depending on the bacterial lifestyle. Plant microbiota shows great complexity, promotes plant health and growth and assures protection from pathogens. How plants perceive LPS from plant-associated bacteria and discriminate between beneficial and pathogenic microbes is an open and urgent question. Here, we report on the structure, conformation, membrane properties and immune recognition of LPS isolated from the Arabidopsis thaliana root microbiota member Herbaspirillum sp. Root189. The LPS consists of an O-methylated and variously acetylated D-rhamnose containing polysaccharide with a rather hydrophobic surface. Plant immunology studies in A. thaliana demonstrate that the native acetylated O-antigen shields the LPS from immune recognition whereas the O-deacylated one does not. These findings highlight the role of Herbaspirillum LPS within plant-microbial crosstalk, and how O-antigen modifications influence membrane properties and modulate LPS host recognition.
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Structural and genetic characterization of the colitose-containing O-specific polysaccharide from the lipopolysaccharide of Herbaspirillum frisingense GSF30T. Int J Biol Macromol 2020; 161:891-897. [DOI: 10.1016/j.ijbiomac.2020.06.093] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/28/2020] [Accepted: 06/10/2020] [Indexed: 02/06/2023]
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Guliy OI, Velichko NS, Fedonenko YP, Bunin VD. Electro-Optical Detection of Phage Antibody Interaction with Complementary Antigens of Herbaspirillum seropedicae Z78 Cells. APPL BIOCHEM MICRO+ 2020. [DOI: 10.1134/s000368382001007x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Velichko NS, Fedonenko YP. Phage antibodies for the immunochemical characterization of Herbaspirillum seropedicae Z78 glycopolymers. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-01490-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Guliy OI, Velichko NS, Fedonenko YP, Bunin VD. Use of an electro-optical sensor and phage antibodies for immunodetection of Herbaspirillum. Talanta 2019; 202:362-368. [PMID: 31171196 DOI: 10.1016/j.talanta.2019.04.086] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 12/20/2022]
Abstract
A sheep single-chain antibody-fragment library (Griffin.1, UK) was used to obtain miniantibodies to the lipopolysaccharide of Herbaspirillum seropedicae Z78. Using electro-optical analysis and electron microscopy, we recorded a biospecific interaction of antigenic determinants on the cell surface with phage antibodies against the LPS of H. seropedicae Z78 (mini-AbsLPS). Control experiments were run to rule out nonspecific binding of the mini-AbsLPS to cells of Azospirillum brasilense Sp245. Use of the highly specific mini-AbsLPS enabled the lipopolysaccharide of H. seropedicae Z78 to be detected in a mixture of bacterial cells by electro-optical means (analysis time, ∼5 min). This report is the first to show the possibility of rapid detection of Herbaspirillum on the basis of electro-optical analysis coupled with the use of mini-AbsLPS. The results are promising for the development of biosensor-based methods to detect potentially human-harmful prokaryotes whose structures either have not been studied or are absent from commercial databases.
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Affiliation(s)
- O I Guliy
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov 410049, Russia.
| | - N S Velichko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov 410049, Russia
| | - Yu P Fedonenko
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov 410049, Russia
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