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Veremeichik GN, Gorpenchenko TY, Rusapetova TV, Brodovskaya EV, Tchernoded GK, Bulgakov DV, Shkryl YN, Bulgakov VP. Auxin-dependent regulation of growth via rolB-induced modulation of the ROS metabolism in the long-term cultivated pRiA4-transformed Rubiacordifolia L. calli. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 202:107932. [PMID: 37557016 DOI: 10.1016/j.plaphy.2023.107932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 07/07/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023]
Abstract
Gene transfer from Agrobacterium to plants is the best studied example of horizontal gene transfer (HGT) between prokaryotes and eukaryotes. The rol genes of A. rhizogenes (Rhizobium rhizogenes) provide uncontrolled root growth, or "hairy root" syndrome, the main diagnostic feature. In the present study, we investigated the stable pRiA4-transformed callus culture of Rubia cordifolia L. While untransformed callus cultures need PGRs (plant growth regulators) as an obligatory supplement, pRiA4 calli is able to achieve long-term PGR-free cultivation. For the first time, we described the pRiA4-transformed callus cultures' PGR-dependent ROS status, growth, and specialized metabolism. As we have shown, expression of the rolA and rolB but not the rolC genes is contradictory in a PGR-dependent manner. Moreover, a PGR-free pRiA4 transformed cell line is characterised as more anthraquinone (AQ) productive than an untransformed cell culture. These findings pertain to actual plant biotechnology: it could be the solution to troubles in choosing the best PGR combination for the cultivation of some rare, medicinal, and woody plants; wild-type Ri-plants and tissue cultures may become freed from legal controls on genetically modified organisms in the future. We propose possible PGR-dependent relationships between rolA and rolB as well as ROS signalling targets. The present study highlighted the high importance of the rolA gene in the regulation of combined rol gene effects and the large knowledge gap in rolA action.
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Affiliation(s)
- Galina N Veremeichik
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia.
| | - Tatiana Y Gorpenchenko
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Tatiana V Rusapetova
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Evgenia V Brodovskaya
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Galina K Tchernoded
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Dmitry V Bulgakov
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Yurii N Shkryl
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Victor P Bulgakov
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
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Kısa D, Ceylan Y, İmamoğlu R. Accumulation of phenolic compounds and expression of phenylpropanoid biosynthesis-related genes in leaves of basil transformed with A. rhizogenes strains. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:629-640. [PMID: 37363423 PMCID: PMC10284738 DOI: 10.1007/s12298-023-01320-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 05/29/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023]
Abstract
Biotic factors affect the content of secondary metabolites by interfering with molecular and biochemical pathways. In the current study, A. rhizogenes strains were inoculated into basil (Ocimum basilicum) to examine the effect of plant-microbe interaction on the accumulation of monomeric phenolic metabolites and the transcript levels of selected genes involved in the biochemical synthesis of secondary compounds. Initially, the integration of the rolB gene was validated by performing PCR analysis on genomic DNA samples from the basil plant inoculated with A. rhizogenes strains. We have detected that the accumulation of mRNA transcripts linked to the biosynthesis pathway of phenolic compounds has higher transcript expression levels in the leaves of transformed basil in proportion to uninoculated plants. Basil plants inoculated with A. rhizogenes 39207 strain had higher transcript levels of CAD, C4H, TAT, FLS, EGS, HPPR, PAL, and RAS genes than other experimental groups. We have identified eleven phenolic components, and the level of rosmarinic acid, eugenol, chicoric acid, and rutin increased in the inoculated basil leaves. However, the inoculation of A. rhizogenes did not cause a change in the compounds of chlorogenic acid, methyl chavicol, cinnamic acid, quercetin, vanillic acid, and caffeic acid. In conclusion, the increase in basic secondary metabolites could be achieved by the A. rhizogenes-mediated transformation of basil plants, and especially ATCC 43057 strain may be one of the A. rhizogenes strains. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01320-w.
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Affiliation(s)
- Dursun Kısa
- Department of Molecular Biology and Genetics, Faculty of Science, Bartin University, 74100 Bartin, Turkey
| | - Yusuf Ceylan
- Department of Molecular Biology and Genetics, Faculty of Science, Bartin University, 74100 Bartin, Turkey
| | - Rizvan İmamoğlu
- Department of Molecular Biology and Genetics, Faculty of Science, Bartin University, 74100 Bartin, Turkey
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3
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Proteomic Analysis of Proteins Related to Defense Responses in Arabidopsis Plants Transformed with the rolB Oncogene. Int J Mol Sci 2023; 24:ijms24031880. [PMID: 36768198 PMCID: PMC9915171 DOI: 10.3390/ijms24031880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
During Agrobacterium rhizogenes-plant interaction, the rolB gene is transferred into the plant genome and is stably inherited in the plant's offspring. Among the numerous effects of rolB on plant metabolism, including the activation of secondary metabolism, its effect on plant defense systems has not been sufficiently studied. In this work, we performed a proteomic analysis of rolB-expressing Arabidopsis thaliana plants with particular focus on defense proteins. We found a total of 77 overexpressed proteins and 64 underexpressed proteins in rolB-transformed plants using two-dimensional gel electrophoresis and MALDI mass spectrometry. In the rolB-transformed plants, we found a reduced amount of scaffold proteins RACK1A, RACK1B, and RACK1C, which are known as receptors for activated C-kinase 1. The proteomic analysis showed that rolB could suppress the plant immune system by suppressing the RNA-binding proteins GRP7, CP29B, and CP31B, which action are similar to the action of type-III bacterial effectors. At the same time, rolB plants induce the massive biosynthesis of protective proteins VSP1 and VSP2, as well as pathogenesis-related protein PR-4, which are markers of the activated jasmonate pathway. The increased contents of glutathione-S-transferases F6, F2, F10, U19, and DHAR1 and the osmotin-like defense protein OSM34 were found. The defense-associated protein PCaP1, which is required for oligogalacturonide-induced priming and immunity, was upregulated. Moreover, rolB-transformed plants showed the activation of all components of the PYK10 defense complex that is involved in the metabolism of glucosinolates. We hypothesized that various defense systems activated by rolB protect the host plant from competing phytopathogens and created an effective ecological niche for A. rhizogenes. A RolB → RACK1A signaling module was proposed that might exert most of the rolB-mediated effects on plant physiology. Our proteomics data are available via ProteomeXchange with identifier PXD037959.
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Shkryl Y, Yugay Y, Vasyutkina E, Chukhlomina E, Rusapetova T, Bulgakov V. The RolB/RolC homolog from sweet potato promotes early flowering and triggers premature leaf senescence in transgenic Arabidopsis thaliana plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 193:50-60. [PMID: 36323197 DOI: 10.1016/j.plaphy.2022.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/30/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Expression of the root oncogenic loci (rol) genes from Agrobacterium rhizogenes provokes multiple divergent effects on physiological properties in transgenic plants and cell cultures. Recently, the homolog of the rolB and rolC oncogenes, named Ib-rolB/C, has been identified in the genome of a naturally transgenic food crop, i.e. sweet potato. In this study, we revealed that the Ipomoea batatas genome contains two full-length copies of Ib-rolB/C. The expression level of Ib-rolB/C in leaves of sweet potato showed a clear age-dependent pattern and increased as leaves senesce. Moreover, dark-induced senescence strongly up-regulates transcription of the Ib-rolB/C gene. Though Ib-rolB/C shares homology with its counterparts in A. rhizogenes, this gene was not capable to induce hairy roots or tumors in kalanchoe and tobacco plants. The Ib-rolB/C gene induced early-flowering phenotype, altered leaf morphology, and promoted premature leaf senescence in transgenic Arabidopsis thaliana plants. At the same time, Ib-rolB/C did not affect root morphology and biomass. Our results suggest that Ib-RolB/RolC participates in both age- and dark-triggered leaf senescence programs.
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Affiliation(s)
- Yury Shkryl
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia.
| | - Yulia Yugay
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Elena Vasyutkina
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Ekaterina Chukhlomina
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Tatiana Rusapetova
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Victor Bulgakov
- Federal Scientific Center of the East Asia Terrestrial Biodiversity of the Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia
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Jeena GS, Singh N, Shukla RK. An insight into microRNA biogenesis and its regulatory role in plant secondary metabolism. PLANT CELL REPORTS 2022; 41:1651-1671. [PMID: 35579713 DOI: 10.1007/s00299-022-02877-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
The present review highlights the regulatory roles of microRNAs in plant secondary metabolism and focuses on different bioengineering strategies to modulate secondary metabolite content in plants. MicroRNAs (miRNAs) are the class of small endogenous, essential, non-coding RNAs that riboregulate the gene expression involved in various biological processes in most eukaryotes. MiRNAs has emerged as important regulators in plants that function by silencing target genes through cleavage or translational inhibition. These miRNAs plays an important role in a wide range of plant biological and metabolic processes, including plant development and various environmental response controls. Several important plant secondary metabolites like alkaloids, terpenoids, and phenolics are well studied for their function in plant defense against different types of pests and herbivores. Due to the presence of a wide range of biological and pharmaceutical properties of plant secondary metabolites, it is important to study the regulation of their biosynthetic pathways. The contribution of miRNAs in regulating plant secondary metabolism is not well explored. Recent advancements in molecular techniques have improved our knowledge in understanding the molecular function of genes, proteins, enzymes, and small RNAs involved in different steps of secondary metabolic pathways. In the present review, we have discussed the recent progress made on miRNA biogenesis, its regulation, and highlighted the current research developed in the field of identification, analysis, and characterizations of various miRNAs that regulate plant secondary metabolism. We have also discussed how different bioengineering strategies such as artificial miRNA (amiRNA), endogenous target mimicry, and CRISPR/Cas9 could be utilized to enhance the secondary metabolite production in plants.
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Affiliation(s)
- Gajendra Singh Jeena
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), P.O. CIMAP, Near Kukrail Picnic Spot, Lucknow, 226015, India
| | - Neeti Singh
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), P.O. CIMAP, Near Kukrail Picnic Spot, Lucknow, 226015, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Rakesh Kumar Shukla
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), P.O. CIMAP, Near Kukrail Picnic Spot, Lucknow, 226015, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India.
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Balabanova L, Seitkalieva A, Yugay Y, Rusapetova T, Slepchenko L, Podvolotskaya A, Yatsunskaya M, Vasyutkina E, Son O, Tekutyeva L, Shkryl Y. Engineered Fungus Thermothelomyces thermophilus Producing Plant Storage Proteins. J Fungi (Basel) 2022; 8:jof8020119. [PMID: 35205873 PMCID: PMC8877005 DOI: 10.3390/jof8020119] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/16/2022] [Accepted: 01/21/2022] [Indexed: 11/30/2022] Open
Abstract
An efficient Agrobacterium-mediated genetic transformation based on the plant binary vector pPZP-RCS2 was carried out for the multiple heterologous protein production in filamentous fungus Thermothelomyces thermophilus F-859 (formerly Myceliophthora thermophila F-859). The engineered fungus Th. thermophilus was able to produce plant storage proteins of Zea mays (α-zein Z19) and Amaranthus hypochondriacus (albumin A1) to enrich fungal biomass by valuable nutritional proteins and improved amino acid content. The mRNA levels of z19 and a1 genes were significantly dependent on their driving promoters: the promoter of tryptophan synthase (PtrpC) was more efficient to express a1, while the promoter of translation elongation factor (Ptef) provided much higher levels of z19 transcript abundance. In general, the total recombinant proteins and amino acid contents were higher in the Ptef-containing clones. This work describes a new strategy to improve mycoprotein nutritive value by overexpression of plant storage proteins.
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Affiliation(s)
- Larissa Balabanova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-letya Vladivostoka 159, 690022 Vladivostok, Russia; (L.B.); (A.S.); (L.S.)
| | - Aleksandra Seitkalieva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-letya Vladivostoka 159, 690022 Vladivostok, Russia; (L.B.); (A.S.); (L.S.)
| | - Yulia Yugay
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-letya Vladivostoka 159, 690022 Vladivostok, Russia; (Y.Y.); (T.R.); (M.Y.); (E.V.)
| | - Tatiana Rusapetova
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-letya Vladivostoka 159, 690022 Vladivostok, Russia; (Y.Y.); (T.R.); (M.Y.); (E.V.)
| | - Lubov Slepchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-letya Vladivostoka 159, 690022 Vladivostok, Russia; (L.B.); (A.S.); (L.S.)
| | - Anna Podvolotskaya
- Department of Bioeconomy and Food Security, Far Eastern Federal University, B417 Office, Bldg. 20, Ajax St., Russky Island, 690950 Vladivostok, Russia; (A.P.); (O.S.); (L.T.)
- ARNIKA, Territory of PDA Nadezhdinskaya, Centralnay St. 42, 692481 Volno-Nadezhdinskoye, Primorsky Krai, Russia
| | - Margarita Yatsunskaya
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-letya Vladivostoka 159, 690022 Vladivostok, Russia; (Y.Y.); (T.R.); (M.Y.); (E.V.)
| | - Elena Vasyutkina
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-letya Vladivostoka 159, 690022 Vladivostok, Russia; (Y.Y.); (T.R.); (M.Y.); (E.V.)
| | - Oksana Son
- Department of Bioeconomy and Food Security, Far Eastern Federal University, B417 Office, Bldg. 20, Ajax St., Russky Island, 690950 Vladivostok, Russia; (A.P.); (O.S.); (L.T.)
- ARNIKA, Territory of PDA Nadezhdinskaya, Centralnay St. 42, 692481 Volno-Nadezhdinskoye, Primorsky Krai, Russia
| | - Liudmila Tekutyeva
- Department of Bioeconomy and Food Security, Far Eastern Federal University, B417 Office, Bldg. 20, Ajax St., Russky Island, 690950 Vladivostok, Russia; (A.P.); (O.S.); (L.T.)
- ARNIKA, Territory of PDA Nadezhdinskaya, Centralnay St. 42, 692481 Volno-Nadezhdinskoye, Primorsky Krai, Russia
| | - Yury Shkryl
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-letya Vladivostoka 159, 690022 Vladivostok, Russia; (Y.Y.); (T.R.); (M.Y.); (E.V.)
- Correspondence: ; Tel.: +7-4232-312-129; Fax: +7-4232-310-193
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7
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Mauro ML, Bettini PP. Agrobacterium rhizogenes rolB oncogene: An intriguing player for many roles. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 165:10-18. [PMID: 34029941 DOI: 10.1016/j.plaphy.2021.04.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
The rolB oncogene is one of the so-called rol genes found in the T-DNA region of the Agrobacterium rhizogenes Ri plasmid and involved in the hairy root syndrome, a tumour characterized by adventitious root overgrowth on plant stem. rolB produces in plants a peculiar phenotype that, together with its root-inducing capacity, has been connected to auxin sensitivity. The gene is able to modify the plant genetic programme to induce meristem cells and direct them to differentiate not only roots, but also other cells, tissues or organs. Besides its essential function in hairy root pathogenesis, the rolB role has been progressively extended to cover several physiological aspects in the transgenic plants: from secondary metabolites production and ROS inhibition, to abiotic and biotic stress tolerance and photosynthesis improvement. Some of the observed effects could be determined, at least in part, through microRNAs molecules, suggesting an epigenetic control rolB-mediated. These multifaceted capacities could allow plants to withstand adverse environmental conditions, enhancing fitness. In spite of this expanding knowledge, functional analyses did not detect yet any definitive rolB-derived biochemical product, even if more than one enzymatic activity has been ascribed to it. Moreover, phylogenetic and evolutionary studies evidenced no homology with any plant sequences but, otherwise, it belongs to the Plast family, a group of rolB-homologous bacterial genes. Finally, the finding of sequences similar to rolB in plants not infected by A. rhizogenes suggests a hypothetical plant origin for this gene, implying different possibilities about its evolution.
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Affiliation(s)
- Maria Luisa Mauro
- Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma, P.le Aldo Moro 5, 00185, Roma, Italy.
| | - Priscilla P Bettini
- Dipartimento di Biologia, Università degli Studi di Firenze, via Madonna del Piano 6, 50019, Sesto f.no, FI, Italy.
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8
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CRISPR/Cas9-Mediated Knockout of HOS1 Reveals Its Role in the Regulation of Secondary Metabolism in Arabidopsis thaliana. PLANTS 2021; 10:plants10010104. [PMID: 33419060 PMCID: PMC7825447 DOI: 10.3390/plants10010104] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/31/2020] [Accepted: 01/03/2021] [Indexed: 11/17/2022]
Abstract
In Arabidopsis, the RING finger-containing E3 ubiquitin ligase HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES 1 (HOS1) functions as a main regulator of the cold signaling. In this study, CRISPR/Cas9-mediated targeted mutagenesis of the HOS1 gene in the first exon was performed. DNA sequencing showed that frameshift indels introduced by genome editing of HOS1 resulted in the appearance of premature stop codons, disrupting the open reading frame. Obtained hos1Cas9 mutant plants were compared with the SALK T-DNA insertion mutant, line hos1-3, in terms of their tolerance to abiotic stresses, accumulation of secondary metabolites and expression levels of genes participating in these processes. Upon exposure to cold stress, enhanced tolerance and expression of cold-responsive genes were observed in both hos1-3 and hos1Cas9 plants. The hos1 mutation caused changes in the synthesis of phytoalexins in transformed cells. The content of glucosinolates (GSLs) was down-regulated by 1.5-times, while flavonol glycosides were up-regulated by 1.2 to 4.2 times in transgenic plants. The transcript abundance of the corresponding MYB and bHLH transcription factors, which are responsible for the regulation of secondary metabolism in Arabidopsis, were also altered. Our data suggest a relationship between HOS1-regulated downstream signaling and phytoalexin biosynthesis.
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Gutierrez-Valdes N, Häkkinen ST, Lemasson C, Guillet M, Oksman-Caldentey KM, Ritala A, Cardon F. Hairy Root Cultures-A Versatile Tool With Multiple Applications. FRONTIERS IN PLANT SCIENCE 2020; 11:33. [PMID: 32194578 PMCID: PMC7064051 DOI: 10.3389/fpls.2020.00033] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 01/13/2020] [Indexed: 05/24/2023]
Abstract
Hairy roots derived from the infection of a plant by Rhizobium rhizogenes (previously referred to as Agrobacterium rhizogenes) bacteria, can be obtained from a wide variety of plants and allow the production of highly diverse molecules. Hairy roots are able to produce and secrete complex active glycoproteins from a large spectrum of organisms. They are also adequate to express plant natural biosynthesis pathways required to produce specialized metabolites and can benefit from the new genetic tools available to facilitate an optimized production of tailor-made molecules. This adaptability has positioned hairy root platforms as major biotechnological tools. Researchers and industries have contributed to their advancement, which represents new alternatives from classical systems to produce complex molecules. Now these expression systems are ready to be used by different industries like pharmaceutical, cosmetics, and food sectors due to the development of fully controlled large-scale bioreactors. This review aims to describe the evolution of hairy root generation and culture methods and to highlight the possibilities offered by hairy roots in terms of feasibility and perspectives.
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Affiliation(s)
| | | | | | | | | | - Anneli Ritala
- VTT Technical Research Centre of Finland Ltd., Espoo, Finland
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10
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Hu X, Dong D, Xia M, Yang Y, Wang J, Su J, Sun L, Yu H. Oxidative stress and antioxidant capacity: development and prospects. NEW J CHEM 2020. [DOI: 10.1039/d0nj02041a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Signaling pathways regulating redox reactions are activated to balance the redox status and maintain the normal function of cells.
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Affiliation(s)
- Xiaoqing Hu
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Delu Dong
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Meihui Xia
- The First Hospital of Jilin University
- Changchun 130021
- P. R. China
| | - Yimeng Yang
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Jiabin Wang
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Jing Su
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Liankun Sun
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
| | - Huimei Yu
- Key Laboratory of Pathobiology
- Ministry of Education
- Department of Pathophysiology
- College of Basic Medical Sciences
- Jilin University
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11
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Bulgakov VP, Vereshchagina YV, Bulgakov DV, Veremeichik GN, Shkryl YN. The rolB plant oncogene affects multiple signaling protein modules related to hormone signaling and plant defense. Sci Rep 2018; 8:2285. [PMID: 29396465 PMCID: PMC5797197 DOI: 10.1038/s41598-018-20694-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 01/23/2018] [Indexed: 01/11/2023] Open
Abstract
The rolB plant oncogene of Agrobacterium rhizogenes perturbs many biochemical processes in transformed plant cells, thereby causing their neoplastic reprogramming. The oncogene renders the cells more tolerant to environmental stresses and herbicides and inhibits ROS elevation and programmed cell death. In the present work, we performed a proteomic analysis of Arabidopsis thaliana rolB-expressing callus line AtB-2, which represents a line with moderate expression of the oncogene. Our results show that under these conditions rolB greatly perturbs the expression of some chaperone-type proteins such as heat-shock proteins and cyclophilins. Heat-shock proteins of the DnaK subfamily were overexpressed in rolB-transformed calli, whereas the abundance of cyclophilins, members of the closely related single-domain cyclophilin family was decreased. Real-time PCR analysis of corresponding genes confirmed the reliability of proteomics data because gene expression correlated well with the expression of proteins. Bioinformatics analysis indicates that rolB can potentially affect several levels of signaling protein modules, including effector-triggered immunity (via the RPM1-RPS2 signaling module), the miRNA processing machinery, auxin and cytokinin signaling, the calcium signaling system and secondary metabolism.
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Affiliation(s)
- Victor P Bulgakov
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok, 690022, Russia. .,Far Eastern Federal University, Vladivostok, 690950, Russia.
| | - Yulia V Vereshchagina
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok, 690022, Russia
| | - Dmitry V Bulgakov
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok, 690022, Russia
| | - Galina N Veremeichik
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok, 690022, Russia
| | - Yuri N Shkryl
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok, 690022, Russia
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Bettini PP, Marvasi M, Fani F, Lazzara L, Cosi E, Melani L, Mauro ML. Agrobacterium rhizogenes rolB gene affects photosynthesis and chlorophyll content in transgenic tomato (Solanum lycopersicum L.) plants. JOURNAL OF PLANT PHYSIOLOGY 2016; 204:27-35. [PMID: 27497742 DOI: 10.1016/j.jplph.2016.07.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/15/2016] [Accepted: 07/18/2016] [Indexed: 06/06/2023]
Abstract
Insertion of Agrobacterium rhizogenes rolB gene into plant genome affects plant development, hormone balance and defence. However, beside the current research, the overall transcriptional response and gene expression of rolB as a modulator in plant is unknown. Transformed rolB tomato plant (Solanum lycopersicum L.) cultivar Tondino has been used to investigate the differential expression profile. Tomato is a well-known model organism both at the genetic and molecular level, and one of the most important commercial food crops in the world. Through the construction and characterization of a cDNA subtracted library, we have investigated the differential gene expression between transgenic clones of rolB and control tomato and have evaluated genes specifically transcribed in transgenic rolB plants. Among the selected genes, five genes encoding for chlorophyll a/b binding protein, carbonic anhydrase, cytochrome b6/f complex Fe-S subunit, potassium efflux antiporter 3, and chloroplast small heat-shock protein, all involved in chloroplast function, were identified. Measurement of photosynthesis efficiency by the level of three different photosynthetic parameters (Fv/Fm, rETR, NPQ) showed rolB significant increase in non-photochemical quenching and a, b chlorophyll content. Our results point to highlight the role of rolB on plant fitness by improving photosynthesis.
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Affiliation(s)
- Priscilla P Bettini
- Dipartimento di Biologia, Università degli Studi di Firenze, via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy.
| | - Massimiliano Marvasi
- Dipartimento di Biologia, Università degli Studi di Firenze, via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy.
| | - Fabiola Fani
- Dipartimento di Biologia, Università degli Studi di Firenze, via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy.
| | - Luigi Lazzara
- Dipartimento di Biologia, Università degli Studi di Firenze, via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy.
| | - Elena Cosi
- Dipartimento di Biologia, Università degli Studi di Firenze, via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy.
| | - Lorenzo Melani
- Dipartimento di Biologia, Università degli Studi di Firenze, via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy.
| | - Maria Luisa Mauro
- Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma, P.le A. Moro 5, 00185 Roma, Italy.
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Veremeichik G, Bulgakov V, Shkryl Y. Modulation of NADPH-oxidase gene expression in rolB-transformed calli of Arabidopsis thaliana and Rubia cordifolia. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 105:282-289. [PMID: 27208504 DOI: 10.1016/j.plaphy.2016.05.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 05/10/2016] [Accepted: 05/10/2016] [Indexed: 06/05/2023]
Abstract
Expression of rol genes from Agrobacterium rhizogenes induces reprogramming of transformed plant cells and provokes pleiotropic effects on primary and secondary metabolism. We have previously established that the rolB and rolC genes impair reactive oxygen species (ROS) generation in transformed cells of Rubia cordifolia and Arabidopsis thaliana. In the present investigation, we tested whether this effect is associated with changes in the expression levels of NADPH oxidases, which are considered to be the primary source of ROS during plant-microbe interactions. We identified two full-length NADPH oxidase genes from R. cordifolia and examined their expression in non-transformed and rolB-transformed calli. In addition, we examined the expression of their homologous genes from A. thaliana in non-transformed and rolB-expressing cells. The expression of Rboh isoforms was 3- to 7-fold higher in both R. cordifolia and A. thaliana rolB-transformed cells compared with non-transformed cells. Our results for the first time show that Agrobacterium rolB gene regulates particular NADPH oxidase isoforms.
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Affiliation(s)
- Galina Veremeichik
- Institute of Biology and Soil Science, Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Victor Bulgakov
- Institute of Biology and Soil Science, Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia; Far Eastern Federal University, Vladivostok, 690950, Russia
| | - Yury Shkryl
- Institute of Biology and Soil Science, Far East Branch of Russian Academy of Sciences, Vladivostok, 690022, Russia; Far Eastern Federal University, Vladivostok, 690950, Russia.
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Bulgakov VP, Veremeichik GN, Grigorchuk VP, Rybin VG, Shkryl YN. The rolB gene activates secondary metabolism in Arabidopsis calli via selective activation of genes encoding MYB and bHLH transcription factors. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 102:70-79. [PMID: 26913794 DOI: 10.1016/j.plaphy.2016.02.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/11/2016] [Accepted: 02/11/2016] [Indexed: 06/05/2023]
Abstract
It is known that the rolB gene of Agrobacterium rhizogenes increases the production of secondary metabolites in transformed plant cells, but its mechanism of action remains unclear. In this report, we demonstrate that rolB expression in Arabidopsis thaliana calli led to the activation of most genes encoding secondary metabolism-specific MYB and bHLH transcription factors (TFs), such as MYB11, MYB12, MYB28, MYB76, MYB34, MYB51, MYB122, TT2 and TT8. Accordingly, a higher transcript abundance of main biosynthetic genes related to these factors was detected. The rolB-transformed calli produced 3-fold higher levels of indolic glucosinolates (GSs) compared with normal calli but did not produce secondary metabolites from other groups. Enhanced accumulation of indolic GSs was caused by activation of MYB34, MYB51 and MYB122, and the absence of aliphatic GSs in transformed calli was caused by the inability of rolB to induce MYB29. The inability of rolB-calli to produce flavonoids was caused by the lack of MYB111 expression, induced by the rolB-mediated conversion of MYB expression from cotyledon-specific to root-specific patterns. The high specificity of rolB on secondary metabolism-specific TFs was demonstrated for the first time.
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Affiliation(s)
- Victor P Bulgakov
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok 690022, Russia; Far Eastern Federal University, Vladivostok 690950, Russia.
| | - Galina N Veremeichik
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok 690022, Russia
| | - Valeria P Grigorchuk
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok 690022, Russia
| | - Viacheslav G Rybin
- A.V. Zhirmunsky Institute of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, 17 Palchevskogo Str., Vladivostok 690059, Russia
| | - Yuri N Shkryl
- Institute of Biology and Soil Science, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletija Str., Vladivostok 690022, Russia
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New opportunities for the regulation of secondary metabolism in plants: focus on microRNAs. Biotechnol Lett 2015; 37:1719-27. [PMID: 26003096 DOI: 10.1007/s10529-015-1863-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 05/14/2015] [Indexed: 12/22/2022]
Abstract
Plant cell cultures are of particular interest in industrial applications as a source of biologically active substances. It is difficult, however, to achieve stable production of secondary metabolites for many plant cell cultures using classical techniques. Novel approaches should be developed for removal of the inhibitor blocks that prevent pathway activation and shift the regulatory balance to the activation of entire biosynthetic pathways. MicroRNAs (miRNAs) are small RNAs that play important regulatory roles in various biological processes. Only recently miRNAs have been demonstrated as active in secondary metabolism regulation. In this work, we summarize recent data on the emerging approaches based on regulation of secondary metabolism by miRNAs.
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