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Ha CM, Escamilla-Trevino L, Zhuo C, Pu Y, Bryant N, Ragauskas AJ, Xiao X, Li Y, Chen F, Dixon RA. Systematic approaches to C-lignin engineering in Medicago truncatula. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:100. [PMID: 37308891 DOI: 10.1186/s13068-023-02339-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 05/10/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND C-lignin is a homopolymer of caffeyl alcohol present in the seed coats of a variety of plant species including vanilla orchid, various cacti, and the ornamental plant Cleome hassleriana. Because of its unique chemical and physical properties, there is considerable interest in engineering C-lignin into the cell walls of bioenergy crops as a high-value co-product of bioprocessing. We have used information from a transcriptomic analysis of developing C. hassleriana seed coats to suggest strategies for engineering C-lignin in a heterologous system, using hairy roots of the model legume Medicago truncatula. RESULTS We systematically tested strategies for C-lignin engineering using a combination of gene overexpression and RNAi-mediated knockdown in the caffeic acid/5-hydroxy coniferaldehyde 3/5-O-methyltransferase (comt) mutant background, monitoring the outcomes by analysis of lignin composition and profiling of monolignol pathway metabolites. In all cases, C-lignin accumulation required strong down-regulation of caffeoyl CoA 3-O-methyltransferase (CCoAOMT) paired with loss of function of COMT. Overexpression of the Selaginella moellendorffii ferulate 5-hydroxylase (SmF5H) gene in comt mutant hairy roots resulted in lines that unexpectedly accumulated high levels of S-lignin. CONCLUSION C-Lignin accumulation of up to 15% of total lignin in lines with the greatest reduction in CCoAOMT expression required the strong down-regulation of both COMT and CCoAOMT, but did not require expression of a heterologous laccase, cinnamyl alcohol dehydrogenase (CAD) or cinnamoyl CoA reductase (CCR) with preference for 3,4-dihydroxy-substituted substrates in M. truncatula hairy roots. Cell wall fractionation studies suggested that the engineered C-units are not present in a heteropolymer with the bulk of the G-lignin.
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Affiliation(s)
- Chan Man Ha
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, 1155 Union Circle #311428, Denton, TX, 76203-5017, USA
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Luis Escamilla-Trevino
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, 1155 Union Circle #311428, Denton, TX, 76203-5017, USA
| | - Chunliu Zhuo
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, 1155 Union Circle #311428, Denton, TX, 76203-5017, USA
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Yunqiao Pu
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Nathan Bryant
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Arthur J Ragauskas
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Xirong Xiao
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, 1155 Union Circle #311428, Denton, TX, 76203-5017, USA
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Ying Li
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, 1155 Union Circle #311428, Denton, TX, 76203-5017, USA
| | - Fang Chen
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, 1155 Union Circle #311428, Denton, TX, 76203-5017, USA
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Richard A Dixon
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, 1155 Union Circle #311428, Denton, TX, 76203-5017, USA.
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
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Su L, Lv A, Wen W, Fan N, Li J, Gao L, Zhou P, An Y. MsMYB741 is involved in alfalfa resistance to aluminum stress by regulating flavonoid biosynthesis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 112:756-771. [PMID: 36097968 DOI: 10.1111/tpj.15977] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 09/01/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
Aluminum (Al) toxicity severely restricts plant growth in acidic soils (pH < 5.0). In this study, an R2R3-MYB transcription factor (TF) gene, MsMYB741, was cloned from alfalfa. Its function and gene regulatory pathways were studied via overexpression and RNA interference of MsMYB741 in alfalfa seedlings. Results showed that root elongation increased as a result of MsMYB741 overexpression (MsMYB741-OE) and decreased with MsMYB741 RNA interference (MsMYB741-RNAi) in alfalfa seedlings compared with the wild-type under Al stress. These were attributed to the reduced Al content in MsMYB741-OE lines, and increased Al content in MsMYB741-RNAi lines. MsMYB741 positively activated the expression of phenylalanine ammonia-lyase 1 (MsPAL1) and chalcone isomerase (MsCHI) by binding to MYB and ABRE elements in their promoters, respectively, which directly affected flavonoid accumulation in roots and secretion from root tips in plants under Al stress, eventually affecting Al accumulation in alfalfa. Additionally, MsABF2 TF directly activated the expression of MsMYB741 by binding to the ABRE element in its promoter. Taken together, our results indicate that MsMYB741 transcriptionally activates MsPAL1 and MsCHI expression to increase flavonoid accumulation in roots and secretion from root tips, leading to increased resistance of alfalfa to Al stress.
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Affiliation(s)
- Liantai Su
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Aimin Lv
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Wuwu Wen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Nana Fan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Jiaojiao Li
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Li Gao
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Peng Zhou
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yuan An
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Urban Agriculture, Ministry of Agriculture, Shanghai, 201101, China
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Jiang Z, Zhao Q, Bai R, Yu R, Diao P, Yan T, Duan H, Ma X, Zhou Z, Fan Y, Wuriyanghan H. Host sunflower-induced silencing of parasitism-related genes confers resistance to invading Orobanche cumana. PLANT PHYSIOLOGY 2021; 185:424-440. [PMID: 33721890 PMCID: PMC8133596 DOI: 10.1093/plphys/kiaa018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 09/08/2020] [Indexed: 05/04/2023]
Abstract
Orobanche cumana is a holoparasitic plant that attaches to host-plant roots and seriously reduces the yield of sunflower (Helianthus annuus L.). Effective control methods are lacking with only a few known sources of genetic resistance. In this study, a seed-soak agroinoculation (SSA) method was established, and recombinant tobacco rattle virus vectors were constructed to express RNA interference (RNAi) inducers to cause virus-induced gene silencing (VIGS) in sunflower. A host target gene HaTubulin was systemically silenced in both leaf and root tissues by the SSA-VIGS approach. Trans-species silencing of O. cumana genes were confirmed for 10 out of 11 target genes with silencing efficiency of 23.43%-92.67%. Knockdown of target OcQR1, OcCKX5, and OcWRI1 genes reduced the haustoria number, and silencing of OcEXPA6 caused further phenotypic abnormalities such as shorter tubercles and necrosis. Overexpression of OcEXPA6 caused retarded root growth in alfalfa (Medicago sativa). The results demonstrate that these genes play an important role in the processes of O. cumana parasitism. High-throughput small RNA (sRNA) sequencing and bioinformatics analyses unveiled the distinct features of target gene-derived siRNAs in O. cumana such as siRNA transitivity, strand polarity, hotspot region, and 21/22-nt siRNA predominance, the latter of which was confirmed by Northern blot experiments. The possible RNAi mechanism is also discussed by analyzing RNAi machinery genes in O. cumana. Taken together, we established an efficient host-induced gene silencing technology for both functional genetics studies and potential control of O. cumana. The ease and effectiveness of this strategy could potentially be useful for other species provided they are amenable to SSA.
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Affiliation(s)
- Zhengqiang Jiang
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Qiqi Zhao
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Runyao Bai
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Ruonan Yu
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Pengfei Diao
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Ting Yan
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Huimin Duan
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Xuesong Ma
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Zikai Zhou
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Yanyan Fan
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
| | - Hada Wuriyanghan
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010070, P. R. China
- Author for communication:
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Garagounis C, Beritza K, Georgopoulou ME, Sonawane P, Haralampidis K, Goossens A, Aharoni A, Papadopoulou KK. A hairy-root transformation protocol for Trigonella foenum-graecum L. as a tool for metabolic engineering and specialised metabolite pathway elucidation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:451-462. [PMID: 32659648 DOI: 10.1016/j.plaphy.2020.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
The development of genetic transformation methods is critical for enabling the thorough characterization of an organism and is a key step in exploiting any species as a platform for synthetic biology and metabolic engineering approaches. In this work we describe the development of an Agrobacterium rhizogenes-mediated hairy root transformation protocol for the crop and medicinal legume fenugreek (Trigonella foenum-graecum). Fenugreek has a rich and diverse content in bioactive specialised metabolites, notably diosgenin, which is a common precursor for synthetic human hormone production. This makes fenugreek a prime target for identification and engineering of specific biosynthetic pathways for the production of triterpene and steroidal saponins, phenolics, and galactomanans. Through this transformation protocol, we identified a suitable promoter for robust transgene expression in fenugreek. Finally, we establish the proof of principle for the utility of the fenugreek system for metabolic engineering programs, by heterologous expression of known triterpene saponin biosynthesis regulators from the related legume Medicago truncatula in fenugreek hairy roots.
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Affiliation(s)
- Constantine Garagounis
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Biopolis, 41500, Larissa, Greece.
| | - Konstantina Beritza
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Maria-Eleni Georgopoulou
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Prashant Sonawane
- Faculty of Biochemistry, Department of Plant Sciences, Weizmann Institute of Science, 7610001, Rehovot, Israel
| | - Kosmas Haralampidis
- Faculty of Botany, Department of Biology, National and Kapodistrian University of Athens, 15701, Athens, Greece
| | - Alain Goossens
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052, Ghent, Belgium; VIB-UGent Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Asaph Aharoni
- Faculty of Biochemistry, Department of Plant Sciences, Weizmann Institute of Science, 7610001, Rehovot, Israel
| | - Kalliope K Papadopoulou
- Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Biopolis, 41500, Larissa, Greece
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Rhizogenic agrobacteria as an innovative tool for plant breeding: current achievements and limitations. Appl Microbiol Biotechnol 2020; 104:2435-2451. [PMID: 32002599 DOI: 10.1007/s00253-020-10403-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/16/2020] [Accepted: 01/20/2020] [Indexed: 01/02/2023]
Abstract
Compact plant growth is an economically important trait for many crops. In practice, compactness is frequently obtained by applying chemical plant growth regulators. In view of sustainable and environmental-friendly plant production, the search for viable alternatives is a priority for breeders. Co-cultivation and natural transformation using rhizogenic agrobacteria result in morphological alterations which together compose the Ri phenotype. This phenotype is known to exhibit a more compact plant habit, besides other features. In this review, we highlight the use of rhizogenic agrobacteria and the Ri phenotype with regard to sustainable plant production and plant breeding. An overview of described Ri lines and current breeding applications is presented. The potential of Ri lines as pre-breeding material is discussed from both a practical and legal point of view.
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6
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Wang Y, Diao P, Kong L, Yu R, Zhang M, Zuo T, Fan Y, Niu Y, Yan F, Wuriyanghan H. Ethylene Enhances Seed Germination and Seedling Growth Under Salinity by Reducing Oxidative Stress and Promoting Chlorophyll Content via ETR2 Pathway. FRONTIERS IN PLANT SCIENCE 2020; 11:1066. [PMID: 32765554 PMCID: PMC7378865 DOI: 10.3389/fpls.2020.01066] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 06/29/2020] [Indexed: 05/04/2023]
Abstract
Alfalfa (Medicago sativa L.) is an important forage, and salinity is a major stress factor on its yield. In this study, we show that osmotic stress retards alfalfa seedling growth, while ionic/oxidative stress reduces its seed germination. Ethylene treatment can recover the germination rate of alfalfa seeds under salt stress, while ethylene inhibitor silver thiosulfate exacerbates salt effects. ETH reduces the accumulation of MDA and H2O2 and increases POD activity. ETH and ACC improve the salt tolerance of alfalfa by increasing proline content under salt stress. In contrast, STS inhibits alfalfa seed germination by reducing POD activity. NaCl treatment reduces chlorophyll content in alfalfa leaves, while ETH and ACC can increase the chlorophyll content and promote seedling growth. ETH promotes the growth of alfalfa in saline condition by reducing the expression of MsACO and MsERF8 genes, while increases its germination rate by upregulating MsERF11 gene. Silencing of MsETR2, a putative ethylene receptor gene in alfalfa, abolishes ethylene triggered tolerance to salt stress. In summary, we show that ethylene improves salt tolerance in alfalfa via MsETR2 dependent manner, and we also analyze the regulatory mechanism of ethylene during germination of alfalfa seeds under salt stress.
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Affiliation(s)
- Yue Wang
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Pengfei Diao
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Lingqi Kong
- Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot, China
| | - Ruonan Yu
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Man Zhang
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Tiantian Zuo
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Yanyan Fan
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Yiding Niu
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Fang Yan
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
- *Correspondence: Fang Yan, ; Hada Wuriyanghan,
| | - Hada Wuriyanghan
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, China
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
- *Correspondence: Fang Yan, ; Hada Wuriyanghan,
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Paolis AD, Frugis G, Giannino D, Iannelli MA, Mele G, Rugini E, Silvestri C, Sparvoli F, Testone G, Mauro ML, Nicolodi C, Caretto S. Plant Cellular and Molecular Biotechnology: Following Mariotti's Steps. PLANTS (BASEL, SWITZERLAND) 2019; 8:E18. [PMID: 30634627 PMCID: PMC6359066 DOI: 10.3390/plants8010018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/30/2018] [Accepted: 01/07/2019] [Indexed: 01/19/2023]
Abstract
This review is dedicated to the memory of Prof. Domenico Mariotti, who significantly contributed to establishing the Italian research community in Agricultural Genetics and carried out the first experiments of Agrobacterium-mediated plant genetic transformation and regeneration in Italy during the 1980s. Following his scientific interests as guiding principles, this review summarizes the recent advances obtained in plant biotechnology and fundamental research aiming to: (i) Exploit in vitro plant cell and tissue cultures to induce genetic variability and to produce useful metabolites; (ii) gain new insights into the biochemical function of Agrobacterium rhizogenes rol genes and their application to metabolite production, fruit tree transformation, and reverse genetics; (iii) improve genetic transformation in legume species, most of them recalcitrant to regeneration; (iv) untangle the potential of KNOTTED1-like homeobox (KNOX) transcription factors in plant morphogenesis as key regulators of hormonal homeostasis; and (v) elucidate the molecular mechanisms of the transition from juvenility to the adult phase in Prunus tree species.
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Affiliation(s)
- Angelo De Paolis
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), Via Monteroni, 73100 Lecce, Italy.
| | - Giovanna Frugis
- Istituto di Biologia e Biotecnologia Agraria (IBBA), UOS Roma, Consiglio Nazionale delle Ricerche (CNR), Via Salaria Km. 29,300, Monterotondo Scalo, 00015 Roma, Italy.
| | - Donato Giannino
- Istituto di Biologia e Biotecnologia Agraria (IBBA), UOS Roma, Consiglio Nazionale delle Ricerche (CNR), Via Salaria Km. 29,300, Monterotondo Scalo, 00015 Roma, Italy.
| | - Maria Adelaide Iannelli
- Istituto di Biologia e Biotecnologia Agraria (IBBA), UOS Roma, Consiglio Nazionale delle Ricerche (CNR), Via Salaria Km. 29,300, Monterotondo Scalo, 00015 Roma, Italy.
| | - Giovanni Mele
- Istituto di Biologia e Biotecnologia Agraria (IBBA), UOS Roma, Consiglio Nazionale delle Ricerche (CNR), Via Salaria Km. 29,300, Monterotondo Scalo, 00015 Roma, Italy.
| | - Eddo Rugini
- Dipartimento di Scienze Agrarie e Forestali (DAFNE), Università degli Studi della Tuscia, Via San Camillo De Lellis S.N.C., 01100 Viterbo, Italy.
| | - Cristian Silvestri
- Dipartimento di Scienze Agrarie e Forestali (DAFNE), Università degli Studi della Tuscia, Via San Camillo De Lellis S.N.C., 01100 Viterbo, Italy.
| | - Francesca Sparvoli
- Istituto di Biologia e Biotecnologia Agraria (IBBA), Consiglio Nazionale delle Ricerche (CNR), Via Bassini 15, 20133 Milano, Italy.
| | - Giulio Testone
- Istituto di Biologia e Biotecnologia Agraria (IBBA), UOS Roma, Consiglio Nazionale delle Ricerche (CNR), Via Salaria Km. 29,300, Monterotondo Scalo, 00015 Roma, Italy.
| | - Maria Luisa Mauro
- Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma, P.le A. Moro 5, 00185 Roma, Italy.
| | - Chiara Nicolodi
- Istituto di Biologia e Biotecnologia Agraria (IBBA), UOS Roma, Consiglio Nazionale delle Ricerche (CNR), Via Salaria Km. 29,300, Monterotondo Scalo, 00015 Roma, Italy.
| | - Sofia Caretto
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), Via Monteroni, 73100 Lecce, Italy.
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Atif RM, Patat-Ochatt EM, Svabova L, Ondrej V, Klenoticova H, Jacas L, Griga M, Ochatt SJ. Gene Transfer in Legumes. PROGRESS IN BOTANY 2013. [DOI: 10.1007/978-3-642-30967-0_2] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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9
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Lü D, Cao X, Tang S, Tian X. Regeneration of foreign genes co-transformed plants of Medicago sativa L by Agrobacterium rhizogenes. ACTA ACUST UNITED AC 2009; 43:387-94. [PMID: 18726342 DOI: 10.1007/bf02879303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/1999] [Indexed: 11/26/2022]
Abstract
Gene encoding sulphur amino acid-rich protein (HNP) and rol genes were transferred into Medicago sativa L (alfalfa) mediated by Agrobacterium tumafeciens. Regeneration of transgenic plants was induced successfully from hairy root tissue of cotyledon in alfalfa. Cotyledon tissues were an ideally transformed recipient. There was a negative correlation between age of hairy roots and embryogenesis frequency in alfalfa. Production of co-transformed plants with greater yield and super quality was important for development of new alfalfa varieties.
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Affiliation(s)
- D Lü
- Institute of Genetics, Chinese Academy of Sciences, Beijing, China
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10
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Wang YM, Wang JB, Luo D, Jia JF. Regeneration of plants from callus tissues of hairy roots induced by Agrobacterium rhizogenes on Alhagi pseudoalhagi. Cell Res 2001; 11:279-84. [PMID: 11787773 DOI: 10.1038/sj.cr.7290097] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The legume forage Alhagi pseudoalhagi was transformed by the Agrobacterium rhizogenes strain A4 using cotyledon and hypocotyl segments as infection materials. Regenerated plants were achieved from sterile calli derived from hairy roots, which occurred at or near the infection sites. The regenerated plants from hairy root were characterized by normal leaf morphology and stem growth but a shallow and more extensive root system than normal plants. Opine synthesis, PCR and Southern blot confirmed that T-DNA had been integrated into the A. pseudoalhagi genome. Acetosyringone (AS) was found to be vital for successful transformation of A. pseudoalhagi.
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Affiliation(s)
- Y M Wang
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences
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Sarul P, Vlahova M, Todorovska E, Atanassov A. Inheritance of Kanamycin and Ethionine Resistance Introduced in Alfalfa (Medicago Sativa L.) by Gene Transfer and Cell Selection. BIOTECHNOL BIOTEC EQ 1995. [DOI: 10.1080/13102818.1995.10818821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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12
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Webb KJ, Robbins MP, Mizen S. Expression of GUS in primary transformants and segregation patterns of GUS, TL- and TR-DNA in the T1 generation of hairy root transformants ofLotus corniculatus. Transgenic Res 1994. [DOI: 10.1007/bf02336776] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Stiller J, Sinec VN, Svoboda S, Němcová B, Macháčková I. Effects of agrobacterial oncogenes in kidney vetch (Anthyllis vulneraria L.). PLANT CELL REPORTS 1992; 11:363-367. [PMID: 24201440 DOI: 10.1007/bf00233367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/1992] [Revised: 04/16/1992] [Indexed: 06/02/2023]
Abstract
Kidney vetch seedlings were induced to form hairy roots by inoculating their mesocotyls with the wild-type strain 15834 of Agrobacterium rhizogenes or with the A. tumefaciens strain C58C1 containing a binary vector system (the pRiA4b as a helper and the vector pCB1346 bearing a pTiC58-derived isopentenyl transferase gene (ipt, cytokinin biosynthetic gene) under control of its native regulatory sequences). Transgenic lines of three distinct phenotypes were selected: (i) Typically, the pRi15834-transformed tissues were stabilized in vitro and maintained for long periods as aseptic, fast-growing, hormone-independent, plagiotropic hairy root cultures which never regenerated shoots and lost the ability to synthesize opines. Their genomic DNA contained both the TL- and the TR-DNA. (ii) One of the HR-lines transgenic for the T-DNA of pRi15834 (named 52AV34) started to regenerate spontaneously into teratomous shoots. The shoots were found to produce opines and both the TL and TR parts of T-DNA were found to be partly deleted and/or rearranged. They contained phytohormones in similar levels as those found in seed-born shoots. (iii) A practically identical morphogenic response as in the line 52AV34 was observed in the clone 27AV46. However, its shooty, dark-green, slow-growing teratomas were proven to be kanamycin-resistant, opine-producing, and double-transformed by the pRiA4b sequences and the ipt gene. They over-produced auxins as well as cytokinins (mainly indoleacetylaspartic acid and ribosides of zeatin and isopentenyladenine).
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Affiliation(s)
- J Stiller
- Department of Nitrogen Fixation, Institute of Plant Molecular Biology, Czechoslovak Academy of Sciences, Branišovská 31, 37005, České Budějovice, Czechoslovakia
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15
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Phelep M, Petit A, Martin L, Duhoux E, Tempé J. Transformation and Regeneration of a Nitrogen-Fixing Tree, Allocasuarina Verticillata Lam. Nat Biotechnol 1991. [DOI: 10.1038/nbt0591-461] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Zhan XC, Jones DA, Kerr A. The pTiC58 tzs gene promotes high-efficiency root induction by agropine strain 1855 of Agrobacterium rhizogenes. PLANT MOLECULAR BIOLOGY 1990; 14:785-92. [PMID: 2102856 DOI: 10.1007/bf00016511] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Root induction on flax (Linum usitatissimum L.) cotyledon explants by Agrobacterium rhizogenes strain 1855 is markedly increased by co-inoculation with disarmed A. tumefaciens strain LBA 4404 containing a plasmid carrying the tzs gene of pTiC58. Most of the roots (estimated to be more than 90%) were transformed. This effect is most likely due to the secretion of trans-zeatin by A. tumefaciens stimulating the division of plant cells making them more receptive to transformation by A. rhizogenes, although other explanations are possible. This observation supports the idea that the tzs gene, although not essential for transformation, may promote transformation. An obvious application for genetic engineering experiments involving transformation by A. rhizogenes, is to include a vir-induced tzs gene in the transformation system to help maximize transformation efficiency.
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Affiliation(s)
- X C Zhan
- Department of Plant Pathology, University of Adelaide, Osmond, South Australia
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17
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Kuchuk N, Komarnitski I, Shakhovsky A, Gleba Y. Genetic transformation of Medicago species by Agrobacterium tumefaciens and electroporation of protoplasts. PLANT CELL REPORTS 1990; 8:660-663. [PMID: 24232780 DOI: 10.1007/bf00269987] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/1989] [Revised: 10/31/1989] [Indexed: 06/02/2023]
Abstract
Shoot and leaf segments of a non-regenerable Medicago sativa L. genotype were cocultivated with the "shooty" mutant of Agrobacterium tumefaciens carrying the pGV 2206 plasmid. Transformed callus lines were selected and regenerated on the hormone free B5 medium. Southern blot analysis demonstrated integration of T-DNA in to the genome of the regenerated plants.Transgenic plants resistant to kanamycin were obtained by electroporation of Medicago borealis protoplasts with the pGA 472 plasmid DNA.
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Affiliation(s)
- N Kuchuk
- Division of Cell Biology and Engineering, Academy of Sciences of the Ukr. S.S.R., Acad. Lebedeva str. 1, GSP-22, 252650, Kiev, USSR
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18
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Barker DG, Bianchi S, Blondon F, Dattée Y, Duc G, Essad S, Flament P, Gallusci P, Génier G, Guy P, Muel X, Tourneur J, Dénarié J, Huguet T. Medicago truncatula, a model plant for studying the molecular genetics of theRhizobium-legume symbiosis. PLANT MOLECULAR BIOLOGY REPORTER 1990. [PMID: 0 DOI: 10.1007/bf02668879] [Citation(s) in RCA: 163] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
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19
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20
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21
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REDENBAUGH KEITH, WALKER KEITH. Role of Artificial Seeds in Alfalfa Breeding. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/b978-0-444-88883-9.50009-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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22
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Alfalfa, Lucerne (Medicago spp.). ACTA ACUST UNITED AC 1990. [DOI: 10.1007/978-3-642-74448-8_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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23
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Visser RG, Hesseling-Meinders A, Jacobsen E, Nijdam H, Witholt B, Feenstra WJ. Expression and inheritance of inserted markers in binary vector carrying Agrobacterium rhizogenes-transformed potato (Solanum tuberosum L.). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1989; 78:705-714. [PMID: 24225832 DOI: 10.1007/bf00262567] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/1989] [Accepted: 06/27/1989] [Indexed: 06/02/2023]
Abstract
Transgenic shoots were regenerated from eight diploid potato hairy root clones obtained by transformation with Agrobacterium rhizogenes harboring next to its wild-type Ri-plasmid a binary vector containing the neomycin phosphotransferase and the β-glucuronidase genes. The plants exhibited the typical hairy root phenotype. Of the plants isolated, 58% were tetraploid and 38% were diploid. Flowering and tuberization was much better in the diploid than in the tetraploid plants. Transgenic plants formed a significantly larger root system when grown on kanamycin-containing medium as compared to growth on kanamycin-free medium. Direct evidence for genetic transformation was obtained by opine, neomycin phosphotransferase and β-glucuronidase assays, and by molecular hybridization. Fourteen flowering diploid plants were reciprocally crossed with untransformed S. tuberosum plants, but only six were successful. Seedlings obtained from four crosses showed that all traits were transmitted to the offspring. Molecular analysis confirmed the presence of multiple integrations (copies) of both vector T-DNA and Ri-T-DNA. The genetic data, furthermore, suggest that the traits derived from Ri-T-DNA and binary vector T-DNA are linked, as no recombination between the different traits was observed.
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Affiliation(s)
- R G Visser
- Department of Genetics, University of Groningen, Kerklaan 30, NL-9751, NN Haren, The Netherlands
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24
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Tepfer D, Metzger L, Prost R. Use of roots transformed by Agrobacterium rhizogenes in rhizosphere research: applications in studies of cadmium assimilation from sewage sludges. PLANT MOLECULAR BIOLOGY 1989; 13:295-302. [PMID: 2491656 DOI: 10.1007/bf00025317] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The use of roots transformed by Agrobacterium rhizogenes in models for the rhizosphere is discussed. A list of species for which transformed root cultures have been obtained is provided and the example of studies of cadmium assimilation from sewage sludges is given to illustrate how transformed root cultures can be used in physiological tests under non-sterile conditions.
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Affiliation(s)
- D Tepfer
- Laboratoire de Biologie de la Rhizospère, Institut National de la Recherche Agronomique, Versailles, France
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25
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Manners JM, Way H. Efficient transformation with regeneration of the tropical pasture legumeStylosanthes humilis usingAgrobacterium rhizogenes and a Ti plasmid-binary vector system. PLANT CELL REPORTS 1989; 8:341-345. [PMID: 24233271 DOI: 10.1007/bf00716669] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/1989] [Revised: 07/27/1989] [Indexed: 06/02/2023]
Abstract
Agrobacterium rhizogenes carrying the binary Ti plasmid vector pGA492 was used to transform leaf and stem explants of the tropical pasture legumeStylosanthes humilis. Conditions which yielded kanamycin resistant roots at a frequency of up to 86% and subsequent plant regeneration at a frequency of 23% were defined. Transgenic plants were fertile and either grew normally or had stunted growth but otherwise showed only minor morphological abnormalities. Transgenic plants with normal phenotypes were obtained in the progeny of the primary regenerants. The presence of active neomycin phosphotransferase enzyme activity and binary vector DNA and TL-DNA was demonstrated in the regenerated plants. Evidence for the independent transfer of binary vector and TL-DNA was also obtained. This high frequency production of transgenic plants ofS. humilis is a major improvement over previous methods using disarmed strains ofA. tumefaciens as helper.
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Affiliation(s)
- J M Manners
- CSIRO Division of Tropical Crops and Pastures, CSIRO-UQ Plant Pathology Unit, Department of Botany, University of Queensland, St. Lucia, 4067, Brisbane, Australia
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26
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Rech EL, Golds TJ, Husnain T, Vainstein MH, Jones B, Hammatt N, Mulligan BJ, Davey MR. Expression of a chimaeric kanamycin resistance gene introduced into the wild soybeanGlycine canescens using a cointegrate Ri plasmid vector. PLANT CELL REPORTS 1989; 8:33-36. [PMID: 24232591 DOI: 10.1007/bf00735773] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/1988] [Revised: 01/23/1989] [Indexed: 06/02/2023]
Abstract
Seedling hypocotyl explants ofGlycine canescens were inoculated withAgrobacterium rhizogenes carrying a chimaeric NPTII gene cointegrated into the TL-DNA of pRiA4. Transformed roots produced shoots on B5 based medium with 10.0 mgl(-1) BAP, 0.05 mgl(-1) IBA and 50 μgml(-1) kanamycin. Cultured roots and regenerated plants expressed NPTII enzyme activity which was correlated with the presence of Ri TL-DNA and the structural sequence of the NPTII gene.
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Affiliation(s)
- E L Rech
- Plant Genetic Manipulation Group, Department of Botany, University of Nottingham, NG7 2RD, University Park, Nottingham, UK
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27
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Transformation of Field Bean (Vicia faba L.) Cells: Expression of a Chimaeric Gene in Cultured Hairy Roots and Root-derived Callus. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/s0015-3796(89)80170-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Zhan XC, Jones DA, Kerr A. Regeneration of flax plants transformed by Agrobacterium rhizogenes. PLANT MOLECULAR BIOLOGY 1988; 11:551-559. [PMID: 24272489 DOI: 10.1007/bf00017455] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/1988] [Accepted: 08/10/1988] [Indexed: 06/02/2023]
Abstract
Regeneration of flax (Linum usitatissimum) following transformation by either Agrobacterium tumefaciens carrying a disarmed Ti-plasmid vector, or Agrobacterium rhizogenes carrying an unmodified Ri plasmid, was examined. Hypocotyl and cotyledon explants inoculated with A. tumefaciens formed transformed callus, but did not regenerate transformed shoots either directly or via callus. However, cotyledon explants inoculated with A. rhizogenes formed transformed roots which did regenerate transformed shoots. Ri T-DNA encoded opines were detected in the transformed plantlets and Southern hybridization analysis confirmed the presence of T-DNA from the Ri plasmid in their DNA. Transformed plantlets had curled leaves, short internodes and some had a more developed root system characterized by plagiotropic behaviour.
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Affiliation(s)
- X C Zhan
- Department of Plant Pathology, Waite Agricultural Research Institute, University of Adelaide, 5064, Glen Osmond, South Australia, Australia
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29
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Sinkar VP, Pythoud F, White FF, Nester EW, Gordon MP. rolA locus of the Ri plasmid directs developmental abnormalities in transgenic tobacco plants. Genes Dev 1988; 2:688-97. [PMID: 3166443 DOI: 10.1101/gad.2.6.688] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Plants containing the left T-DNA (TL) of Agrobacterium rhizogenes show a variety of developmental abnormalities that include severely wrinkled leaves, loss of apical dominance, reduced geotropism of roots, reduced internode distances, and floral hyperstyly. The TL-DNA also affects the morphology of tumor tissue at the site of inoculation on Kalanchoe diagremontiana leaves. Single mutations at four loci of the TL-DNA (rolA, rolB, rolC, and rolD) are known to affect tumor morphology on K. diagremontiana leaves. We regenerated plants from tissues transformed with TL-DNA containing mutations in each of the rol loci in order to determine which of the rol loci, if any, control the abnormal plant phenotype. Only plants regenerated after infection with bacteria containing a mutation in rolA locus showed loss of the wrinkled leaf phenotype. The rolA locus was cloned into the plant transformation vector pGA472 and introduced alone into plants. Transgenic plants containing rolA displayed the abnormal phenotype. These results indicate that rolA is the primary determinant of the severely wrinkled phenotype of Ri plasmid transgenic plants. Other rol loci may influence the degree of developmental abnormalities.
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Affiliation(s)
- V P Sinkar
- Department of Biochemistry, University of Washington, Seattle 98195
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30
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Mugnier J. Establishment of new axenic hairy root lines by inoculation with Agrobacterium rhizogenes. PLANT CELL REPORTS 1988; 7:9-12. [PMID: 24241404 DOI: 10.1007/bf00272966] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/1987] [Revised: 12/05/1987] [Indexed: 06/02/2023]
Abstract
Cultured hairy root lines resulting from infection by Agrobacterium rhizogenes are known for approximately thirty plant species. We extend this range by establishing forty original dicotyledonous hairy root lines with A. rhizogenes strain A4. Hairy roots have been cultured for at least 2-6 years on Murashige & Skoog medium. Some hairy root cultures such as Anagallis arvensis and Antirrhinum majus spontaneously regenerated whole plants.
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Affiliation(s)
- J Mugnier
- Rhône-Poulenc Agrochimie, F-69263, Lyon cedex 09, France
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31
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Increased Virulence of Agrobacterium Rhizogenes Conferred by the vir Region of pTiBo542: Application to Genetic Engineering of Poplar. Nat Biotechnol 1987. [DOI: 10.1038/nbt1287-1323] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Cardarelli M, Mariotti D, Pomponi M, Spanò L, Capone I, Costantino P. Agrobacterium rhizogenes T-DNA genes capable of inducing hairy root phenotype. MOLECULAR & GENERAL GENETICS : MGG 1987; 209:475-80. [PMID: 17193709 DOI: 10.1007/bf00331152] [Citation(s) in RCA: 88] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Segments of the TL-DNA of the agropine type Ri plasmid pRi 1855 encompassing single and groups of open-reading frames were cloned in the Ti plasmid-derived binary vector system Bin 19. Leaf disc infections on Nicotiana tabacum led to transformed plants, some of which showed typical hairy root phenotypes, such as the wrinkled leaf morphology, excessive and partially non geotropic root systems and the ability of leaf explants to differentiate roots in a hormone-free culture medium. Particularly interestingly, most of these traits were shown by plants transformed with a TL-DNA segment encompassing the single ORF 11, corresponding to the rolB locus. Hairy root can be induced by this latter T-DNA segment on wounded stems of tobacco plants; hairy root induction on carrot discs requires, on the contrary, a more complex complement of TL-DNA genes.
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Affiliation(s)
- M Cardarelli
- Centro per lo Studio degli Acidi Nucleici, CNR, I-00185 Rome, Italy
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