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Ma X, Hu J, Ding C, Portieles R, Xu H, Gao J, Du L, Gao X, Yue Q, Zhao L, Borrás-Hidalgo O. New native Bacillus thuringiensis strains induce high insecticidal action against Culex pipiens pallens larvae and adults. BMC Microbiol 2023; 23:100. [PMID: 37055727 PMCID: PMC10099900 DOI: 10.1186/s12866-023-02842-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/28/2023] [Indexed: 04/15/2023] Open
Abstract
Mosquitoes of many species are key disease vectors, killing millions of people each year. Bacillus thuringiensis-based insecticide formulations are largely recognized as among the most effective, ecologically safe, and long-lasting methods of managing insect pests. New B. thuringiensis strains with high mosquito control effectiveness were isolated, identified, genetically defined, and physiologically characterized. Eight B. thuringiensis strains were identified and shown to carry endotoxin-producing genes. Using a scanning electron microscope, results revealed typical crystal forms of various shapes in B. thuringiensis strains. Fourteen cry and cyt genes were found in the strains examined. Although the genome of the B. thuringiensis A4 strain had twelve cry and cyt genes, not all of them were expressed, and only a few protein profiles were observed. The larvicidal activity of the eight B. thuringiensis strains was found to be positive (LC50: 1.4-28.5 g/ml and LC95: 15.3-130.3 g/ml). Bioassays in a laboratory environment demonstrated that preparations containing B. thuringiensis spores and crystals were particularly active to mosquito larvae and adults. These new findings show that the novel preparation containing B. thuringiensis A4 spores and crystals mixture might be used to control larval and adult mosquitoes in a sustainable and ecologically friendly manner.
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Affiliation(s)
- Xinmin Ma
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Jianjian Hu
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Chengsong Ding
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Roxana Portieles
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Hongli Xu
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Jingyao Gao
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Lihua Du
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Xiangyou Gao
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Qiulin Yue
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China
| | - Lin Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China
| | - Orlando Borrás-Hidalgo
- Joint R and D Center of Biotechnology, RETDA, Yotabio-Engineering Co., Ltd, 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China.
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China.
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Portieles R, Xu H, Chen F, Gao J, Du L, Gao X, Nordelo CB, Yue Q, Zhao L, Gonzalez NP, Bermudez RS, Borrás-Hidalgo O. Bioengineering of a Lactococcus lactis subsp. lactis strain enhances nisin production and bioactivity. PLoS One 2023; 18:e0281175. [PMID: 37036850 PMCID: PMC10085027 DOI: 10.1371/journal.pone.0281175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/24/2023] [Indexed: 04/11/2023] Open
Abstract
Lactococcus lactis subsp. lactis is a food bacterium that has been utilized for decades in food fermentation and the development of high-value industrial goods. Among these, nisin, which is produced by several strains of L. lactis subsp. lactis, plays a crucial role as a food bio-preservative. The gene expression for nisin synthesis was evaluated using qPCR analysis. Additionally, a series of re-transformations of the strain introducing multiple copies of the nisA and nisRK genes related to nisin production were developed. The simultaneous expression of nisA and nisZ genes was used to potentiate the effective inhibition of foodborne pathogens. Furthermore, qPCR analysis indicated that the nisA and nisRK genes were expressed at low levels in wild-type L. lactis subsp. lactis. After several re-transformations of the strain with the nisA and nisRK genes, a high expression of these genes was obtained, contributing to improved nisin production. Also, co-expression of the nisA and nisZ genes resulted in extremely effective antibacterial action. Hence, this study would provide an approach to enhancing nisin production during industrial processes and antimicrobial activity.
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Affiliation(s)
- Roxana Portieles
- Joint R and D Center of Biotechnology, RETDA, YOTABIO-ENGINEERING CO., LTD., Rizhao, Shandong, P.R. China
| | - Hongli Xu
- Joint R and D Center of Biotechnology, RETDA, YOTABIO-ENGINEERING CO., LTD., Rizhao, Shandong, P.R. China
| | - Feng Chen
- Joint R and D Center of Biotechnology, RETDA, YOTABIO-ENGINEERING CO., LTD., Rizhao, Shandong, P.R. China
| | - Jingyao Gao
- Joint R and D Center of Biotechnology, RETDA, YOTABIO-ENGINEERING CO., LTD., Rizhao, Shandong, P.R. China
| | - Lihua Du
- Joint R and D Center of Biotechnology, RETDA, YOTABIO-ENGINEERING CO., LTD., Rizhao, Shandong, P.R. China
| | - Xiangyou Gao
- Joint R and D Center of Biotechnology, RETDA, YOTABIO-ENGINEERING CO., LTD., Rizhao, Shandong, P.R. China
| | | | - Qiulin Yue
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China
| | - Lin Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China
| | - Nayanci Portal Gonzalez
- School of Biological Science and Technology, University of Jinan, Jinan, Shandong, People's Republic of China
| | - Ramon Santos Bermudez
- School of Biological Science and Technology, University of Jinan, Jinan, Shandong, People's Republic of China
| | - Orlando Borrás-Hidalgo
- Joint R and D Center of Biotechnology, RETDA, YOTABIO-ENGINEERING CO., LTD., Rizhao, Shandong, P.R. China
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China
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Zhao C, Ma G, Zhou L, Zhang S, Su L, Sun X, Borrás-Hidalgo O, Li K, Yue Q, Zhao L. Effects of nitrogen levels on gene expression and amino acid metabolism in Welsh onion. BMC Genomics 2021; 22:803. [PMID: 34743697 PMCID: PMC8573885 DOI: 10.1186/s12864-021-08130-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 10/28/2021] [Indexed: 01/15/2023] Open
Abstract
Background Welsh onion constitutes an important crop due to its benefits in traditional medicine. Nitrogen is an important nutrient for plant growth and yield; however, little is known about its influence on the mechanisms of Welsh onion regulation genes. In this study, we introduced a gene expression and amino acid analysis of Welsh onion treated with different concentrations of nitrogen (N0, N1, and N2 at 0 kg/ha, 130 kg/ha, and 260 kg/ha, respectively). Results Approximately 1,665 genes were differentially regulated with different concentrations of nitrogen. Gene ontology enrichment analysis revealed that the genes involved in metabolic processes, protein biosynthesis, and transportation of amino acids were highly represented. KEGG analysis indicated that the pathways were related to amino acid metabolism, cysteine, beta-alanine, arginine, proline, and glutathione. Differential gene expression in response to varying nitrogen concentrations resulted in different amino acid content. A close relationship between gene expression and the content of amino acids was observed. Conclusions This work examined the effects of nitrogen on gene expression and amino acid synthesis and provides important evidence on the efficient use of nitrogen in Welsh onion.
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Affiliation(s)
- Chen Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.,Shandong Provincial Key Laboratory of Food and Fermentation Engineering, Shandong Food Ferment Industry Research & Design Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.,School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Guanchu Ma
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Lin Zhou
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Song Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Le Su
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Xin Sun
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Orlando Borrás-Hidalgo
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Kunlun Li
- Jinan Hangchen Biotechnology Co., Ltd, Jinan, China
| | - Qiulin Yue
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
| | - Lin Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
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Zhang D, Xu H, Gao J, Portieles R, Du L, Gao X, Borroto Nordelo C, Borrás-Hidalgo O. Endophytic Bacillus altitudinis Strain Uses Different Novelty Molecular Pathways to Enhance Plant Growth. Front Microbiol 2021; 12:692313. [PMID: 34248918 PMCID: PMC8268155 DOI: 10.3389/fmicb.2021.692313] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/26/2021] [Indexed: 11/15/2022] Open
Abstract
The identification and use of endophytic bacteria capable of triggering plant growth is an important aim in sustainable agriculture. In nature, plants live in alliance with multiple plant growth-promoting endophytic microorganisms. In the current study, we isolated and identified a new endophytic bacterium from a wild plant species Glyceria chinensis (Keng). The bacterium was designated as a Bacillus altitudinis strain using 16S rDNA sequencing. The endophytic B. altitudinis had a notable influence on plant growth. The results of our assays revealed that the endophytic B. altitudinis raised the growth of different plant species. Remarkably, we found transcriptional changes in plants treated with the bacterium. Genes such as maturase K, tetratricopeptide repeat-like superfamily protein, LOB domain-containing protein, and BTB/POZ/TAZ domain-containing protein were highly expressed. In addition, we identified for the first time an induction in the endophytic bacterium of the major facilitator superfamily transporter and DNA gyrase subunit B genes during interaction with the plant. These new findings show that endophytic B. altitudinis could be used as a favourable candidate source to enhance plant growth in sustainable agriculture.
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Affiliation(s)
- Dening Zhang
- Joint R&D Center of Biotechnology, Retda, Yota Bio-Engineering Co., Ltd., Rizhao, China
| | - Hongli Xu
- Joint R&D Center of Biotechnology, Retda, Yota Bio-Engineering Co., Ltd., Rizhao, China
| | - Jingyao Gao
- Joint R&D Center of Biotechnology, Retda, Yota Bio-Engineering Co., Ltd., Rizhao, China
| | - Roxana Portieles
- Joint R&D Center of Biotechnology, Retda, Yota Bio-Engineering Co., Ltd., Rizhao, China
| | - Lihua Du
- Joint R&D Center of Biotechnology, Retda, Yota Bio-Engineering Co., Ltd., Rizhao, China
| | - Xiangyou Gao
- Joint R&D Center of Biotechnology, Retda, Yota Bio-Engineering Co., Ltd., Rizhao, China
| | | | - Orlando Borrás-Hidalgo
- Joint R&D Center of Biotechnology, Retda, Yota Bio-Engineering Co., Ltd., Rizhao, China.,State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan, China
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Portieles R, Xu H, Yue Q, Zhao L, Zhang D, Du L, Gao X, Gao J, Portal Gonzalez N, Santos Bermudez R, Borrás-Hidalgo O. Heat-killed endophytic bacterium induces robust plant defense responses against important pathogens. Sci Rep 2021; 11:12182. [PMID: 34108579 PMCID: PMC8190079 DOI: 10.1038/s41598-021-91837-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/02/2021] [Indexed: 02/05/2023] Open
Abstract
Stress caused by pathogens strongly damages plants. Developing products to control plant disease is an important challenge in sustainable agriculture. In this study, a heat-killed endophytic bacterium (HKEB), Bacillus aryabhattai, is used to induce plant defense against fungal and bacterial pathogens, and the main defense pathways used by the HKEB to activate plant defense are revealed. The HKEB induced high protection against different pathogens through the salicylic and jasmonic acid pathways. We report the presence of gentisic acid in the HKEB for the first time. These results show that HKEBs may be a useful tool for the management of plant diseases.
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Affiliation(s)
- Roxana Portieles
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Hongli Xu
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Qiulin Yue
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China
| | - Lin Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China
| | - Dening Zhang
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Lihua Du
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Xiangyou Gao
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Jingyao Gao
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China
| | - Nayanci Portal Gonzalez
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong, People's Republic of China
| | - Ramon Santos Bermudez
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong, People's Republic of China.
| | - Orlando Borrás-Hidalgo
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, 276826, Shandong, People's Republic of China.
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Qilu University of Technology (Shandong Academic of Science), Jinan, People's Republic of China.
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Zhao C, Ni H, Zhao L, Zhou L, Borrás-Hidalgo O, Cui R. Correction: High nitrogen concentration alter microbial community in Allium fistulosum rhizosphere. PLoS One 2021; 16:e0246163. [PMID: 33481954 PMCID: PMC7822286 DOI: 10.1371/journal.pone.0246163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Zhao C, Ni H, Zhao L, Zhou L, Borrás-Hidalgo O, Cui R. High nitrogen concentration alter microbial community in Allium fistulosum rhizosphere. PLoS One 2020; 15:e0241371. [PMID: 33216744 PMCID: PMC7678981 DOI: 10.1371/journal.pone.0241371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 10/13/2020] [Indexed: 01/06/2023] Open
Abstract
Welsh onion (Allium fistulosum L.) constitutes an important plant species cultivated in China due the benefits and applications in different areas. Moreover, nitrogen is an essential nutrient during the growth and development of plant. Here, we present the effects of nitrogen on soil microbiome in welsh onion plants. We used High-throughput sequencing analysis to determine the diversity and abundances of microbes associated to soil rhizosphere in welsh onion under the influence of nitrogen application. Nitrogen application significantly influenced in the diversity of fungal community. The relative abundance of Orbiliomycetes increased with the nitrogen concentration. Nitrogen application did not affect the diversity of bacterial community, whereas the relative abundance of Acidobacteria_Gp2, Verrucomicrobiae and Sphingobacteriia decreased with the nitrogen condition. In this work, we introduced evidences of the effect of nitrogen fertilization on microbial community in welsh onion rhizosphere, and the change of microbial community may interfere the growth and development of welsh onion.
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Affiliation(s)
- Chen Zhao
- Shandong Provincial Key Laboratory of Food and Fermentation Engineering, Shandong Food Ferment Industry Research & Design Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Haifeng Ni
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Lin Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Lin Zhou
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Orlando Borrás-Hidalgo
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab. of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Rongzong Cui
- Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
- * E-mail:
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Soto N, Hernández Y, Delgado C, Rosabal Y, Ortiz R, Valencia L, Borrás-Hidalgo O, Pujol M, Enríquez GA. Field Resistance to Phakopsora pachyrhizi and Colletotrichum truncatum of Transgenic Soybean Expressing the NmDef02 Plant Defensin Gene. Front Plant Sci 2020; 11:562. [PMID: 32528487 PMCID: PMC7264373 DOI: 10.3389/fpls.2020.00562] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 04/15/2020] [Indexed: 05/20/2023]
Abstract
Fungal diseases lead to significant losses in soybean yields and a decline in seed quality; such is the case of the Asian soybean rust and anthracnose caused by Phakopsora pachyrhizi and Colletotrichum truncatum, respectively. Currently, the development of transgenic plants carrying antifungal defensins offers an alternative for plant protection against pathogens. This paper shows the production of transgenic soybean plants expressing the NmDef02 defensin gene using the biolistic delivery system, in an attempt to improve resistance against diseases and reduce the need for chemicals. Transgenic lines were assessed in field conditions under the natural infections of P. pachyrhizi and C. truncatum. The constitutive expression of the NmDef02 gene in transgenic soybean plants was shown to enhance resistance against these important plant pathogens. The quantification of the P. pachyrhizi biomass in infected soybean leaves revealed significant differences between transgenic lines and the non-transgenic control. In certain transgenic lines there was a strong reduction of fungal biomass, revealing a less severe disease. Integration and expression of the transgenes were confirmed by PCR, Southern blot, and qRT-PCR, where the Def1 line showed a higher relative expression of defensin. It was also found that the expression of the NmDef02 defensin gene in plants of the Def1 line did not have a negative effect on the nodulation induced by Bradyrhizobium japonicum. These results indicate that transgenic soybean plants expressing the NmDef02 defensin gene have a substantially enhanced resistance to economically important diseases, providing a sound environmental approach for decreasing yield losses and lowering the burden of chemicals in agriculture.
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Affiliation(s)
- Natacha Soto
- Soybean Biotechnology Laboratory, Plant Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
- *Correspondence: Natacha Soto,
| | - Yuniet Hernández
- Soybean Biotechnology Laboratory, Plant Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Celia Delgado
- Soybean Biotechnology Laboratory, Plant Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Yamilka Rosabal
- Soybean Biotechnology Laboratory, Plant Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Rodobaldo Ortiz
- National Institute of Agricultural Sciences, San José de las Lajas, Cuba
| | - Laura Valencia
- Soybean Biotechnology Laboratory, Plant Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Orlando Borrás-Hidalgo
- Soybean Biotechnology Laboratory, Plant Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
- Shandong Provincial Key Laboratory of Microbial Engineering, School of Biotechnology, Qilu University of Technology, Jinan, China
| | - Merardo Pujol
- Soybean Biotechnology Laboratory, Plant Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Gil A. Enríquez
- Soybean Biotechnology Laboratory, Plant Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
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Boccardo NA, Segretin ME, Hernandez I, Mirkin FG, Chacón O, Lopez Y, Borrás-Hidalgo O, Bravo-Almonacid FF. Expression of pathogenesis-related proteins in transplastomic tobacco plants confers resistance to filamentous pathogens under field trials. Sci Rep 2019; 9:2791. [PMID: 30808937 PMCID: PMC6391382 DOI: 10.1038/s41598-019-39568-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 01/25/2019] [Indexed: 01/18/2023] Open
Abstract
Plants are continuously challenged by pathogens, affecting most staple crops compromising food security. They have evolved different mechanisms to counterattack pathogen infection, including the accumulation of pathogenesis-related (PR) proteins. These proteins have been implicated in active defense, and their overexpression has led to enhanced resistance in nuclear transgenic plants, although in many cases constitutive expression resulted in lesion-mimic phenotypes. We decided to evaluate plastid transformation as an alternative to overcome limitations observed for nuclear transgenic technologies. The advantages include the possibilities to express polycistronic RNAs, to obtain higher protein expression levels, and the impeded gene flow due to the maternal inheritance of the plastome. We transformed Nicotiana tabacum plastids to co-express the tobacco PR proteins AP24 and β-1,3-glucanase. Transplastomic tobacco lines were characterized and subsequently challenged with Rhizoctonia solani, Peronospora hyoscyami f.sp. tabacina and Phytophthora nicotianae. Results showed that transplastomic plants expressing AP24 and β-1,3-glucanase are resistant to R. solani in greenhouse conditions and, furthermore, they are protected against P.hyoscyami f.sp. tabacina and P. nicotianae in field conditions under high inoculum pressure. Our results suggest that plastid co- expression of PR proteins AP24 and β-1,3-glucanase resulted in enhanced resistance against filamentous pathogens.
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Affiliation(s)
- Noelia Ayelen Boccardo
- Laboratorio de Biotecnología Vegetal, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres" (INGEBI-CONICET), (C1428ADN), Ciudad Autónoma de Buenos Aires, Argentina
| | - María Eugenia Segretin
- Laboratorio de Biotecnología Vegetal, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres" (INGEBI-CONICET), (C1428ADN), Ciudad Autónoma de Buenos Aires, Argentina.
- Departamento de Fisiología, Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, (C1428EGA), Ciudad Autónoma de Buenos Aires, Argentina.
| | - Ingrid Hernandez
- Centro de Ingeniería Genética y Biotecnología (CIGB), (10600), La Habana, Cuba
| | - Federico Gabriel Mirkin
- Laboratorio de Biotecnología Vegetal, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres" (INGEBI-CONICET), (C1428ADN), Ciudad Autónoma de Buenos Aires, Argentina
| | - Osmani Chacón
- Centro de Ingeniería Genética y Biotecnología (CIGB), (10600), La Habana, Cuba
| | - Yunior Lopez
- Centro de Ingeniería Genética y Biotecnología (CIGB), (10600), La Habana, Cuba
| | - Orlando Borrás-Hidalgo
- Centro de Ingeniería Genética y Biotecnología (CIGB), (10600), La Habana, Cuba
- Shandong Provincial Key Laboratory of Microbial Engineering, School of Biotechnology, Qi Lu University of Technology, Jinan, (250353), P.R. China
| | - Fernando Félix Bravo-Almonacid
- Laboratorio de Biotecnología Vegetal, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres" (INGEBI-CONICET), (C1428ADN), Ciudad Autónoma de Buenos Aires, Argentina.
- Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Bernal, Buenos Aires, (B1876BXD), Argentina.
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Zhu W, Hao L, Liu X, Borrás-Hidalgo O, Zhang Y. Enhanced anti-proliferative efficacy of epothilone B loaded with Escherichia coli Nissle 1917 bacterial ghosts on the HeLa cells by mitochondrial pathway of apoptosis. Drug Dev Ind Pharm 2018. [DOI: 10.1080/03639045.2018.1449855] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Wenxing Zhu
- Shandong Provincial Key Lab of Microbial Engineering, School of Bioengineering, Qilu University of Technology, Jinan, P. R. China
| | - Lujiang Hao
- Shandong Provincial Key Lab of Microbial Engineering, School of Bioengineering, Qilu University of Technology, Jinan, P. R. China
| | - Xinli Liu
- Shandong Provincial Key Lab of Microbial Engineering, School of Bioengineering, Qilu University of Technology, Jinan, P. R. China
| | - Orlando Borrás-Hidalgo
- Shandong Provincial Key Lab of Microbial Engineering, School of Bioengineering, Qilu University of Technology, Jinan, P. R. China
| | - Yuyu Zhang
- Shandong Key Lab of Animal Disease Control and Breeding, Shandong Academy of Agricultural Sciences, Jinan, P. R. China
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11
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Portieles R, Ochagavia ME, Canales E, Silva Y, Chacón O, Hernández I, López Y, Rodríguez M, Terauchi R, Borroto C, Santos R, Bolton MD, Ayra-Pardo C, Borrás-Hidalgo O. High-throughput SuperSAGE for gene expression analysis of Nicotiana tabacum-Rhizoctonia solani interaction. BMC Res Notes 2017; 10:603. [PMID: 29162149 PMCID: PMC5697063 DOI: 10.1186/s13104-017-2934-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 11/14/2017] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE The ubiquitous soil pathogen Rhizoctonia solani causes serious diseases in different plant species. Despite the importance of this disease, little is known regarding the molecular basis of susceptibility. SuperSAGE technology and next-generation sequencing were used to generate transcript libraries during the compatible Nicotiana tabacum-R. solani interaction. Also, we used the post-transcriptional silencing to evaluate the function of a group of important genes. RESULTS A total of 8960 and 8221 unique Tag sequences identified as differentially up- and down-regulated were obtained. Based on gene ontology classification, several annotated UniTags corresponded to defense response, metabolism and signal transduction. Analysis of the N. tabacum transcriptome during infection identified regulatory genes implicated in a number of hormone pathways. Silencing of an mRNA induced by salicylic acid reduced the susceptibility of N. tabacum to R. solani. We provide evidence that the salicylic acid pathway was involved in disease development. This is important for further development of disease management strategies caused by this pathogen.
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Affiliation(s)
- Roxana Portieles
- Center for Genetic Engineering and Biotechnology, 10600 Havana, Cuba
| | | | - Eduardo Canales
- Center for Genetic Engineering and Biotechnology, 10600 Havana, Cuba
| | - Yussuan Silva
- Tobacco Research Institute, Carretera de Tumbadero 8, 6063, San Antonio de los Baños, Havana, Cuba
| | - Osmani Chacón
- Tobacco Research Institute, Carretera de Tumbadero 8, 6063, San Antonio de los Baños, Havana, Cuba
| | - Ingrid Hernández
- Center for Genetic Engineering and Biotechnology, 10600 Havana, Cuba
| | - Yunior López
- Center for Genetic Engineering and Biotechnology, 10600 Havana, Cuba
| | - Mayra Rodríguez
- Center for Genetic Engineering and Biotechnology, 10600 Havana, Cuba
| | - Ryohei Terauchi
- Iwate Biotechnology Research Center, Kitakami, Iwate 024-0003 Japan
| | - Carlos Borroto
- Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Colonia Chuburná de Hidalgo, 97200 Mérida, Yucatán Mexico
| | - Ramón Santos
- Universidad Técnica Luis Vargas Torres de Esmeraldas, Av. Kennedy 704, Esmeraldas, Ecuador
| | - Melvin D. Bolton
- USDA-Agricultural Research Service, Northern Crops Science Laboratory, 1605 Albrecht Blvd., Fargo, ND 58102-2765 USA
| | - Camilo Ayra-Pardo
- Center for Genetic Engineering and Biotechnology, 10600 Havana, Cuba
- Henan Provincial Engineering Laboratory of Insect Bio-reactor, Nanyang Normal University, Henan, 473061 People’s Republic of China
| | - Orlando Borrás-Hidalgo
- Center for Genetic Engineering and Biotechnology, 10600 Havana, Cuba
- Shandong Provincial Key Laboratory of Microbial Engineering, School of Biotechnology, Qi Lu University of Technology, Jinan, 250353 People’s Republic of China
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Portieles R, Canales E, Chacon O, Silva Y, Hernández I, López Y, Rodríguez M, Terauchi R, Matsumura H, Borroto C, Walton JD, Santos R, Borrás-Hidalgo O. Expression of a Nicotiana tabacum pathogen-induced gene is involved in the susceptibility to black shank. Funct Plant Biol 2016; 43:534-541. [PMID: 32480483 DOI: 10.1071/fp15350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 03/22/2016] [Indexed: 06/11/2023]
Abstract
Many host genes induced during compatible plant-pathogen interactions constitute targets of pathogen virulence factors that act to suppress host defenses. In order to identify Nicotiana tabacum L. genes for pathogen-induced proteins involved in susceptibility to the oomycete Phytophthora parasitica var. nicotianae, we used SuperSAGE technology combined with next-generation sequencing to identify transcripts that were differentially upregulated during a compatible interaction. We identified a pathogen-induced gene (NtPIP) that was rapidly induced only during the compatible interaction. Virus-induced gene silencing of NtPIP reduced the susceptibility of N. tabacum to P. parasitica var. nicotianae. Additionally, transient expression of NtPIP in the resistant species Nicotiana megalosiphon Van Heurck & Mull. Arg. compromised the resistance to P. parasitica var. nicotianae. This pathogen-induced protein is therefore a positive regulator of the susceptibility response against an oomycete pathogen in tobacco.
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Affiliation(s)
- Roxana Portieles
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Eduardo Canales
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Osmani Chacon
- Tobacco Research Institute, Carretera de Tumbadero 8, PO Box 6063, Havana, Cuba
| | - Yussuan Silva
- Tobacco Research Institute, Carretera de Tumbadero 8, PO Box 6063, Havana, Cuba
| | - Ingrid Hernández
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Yunior López
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Mayra Rodríguez
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Ryohei Terauchi
- Iwate Biotechnology Research Centre, Kitakami, Iwate, 024-0003, Japan
| | - Hideo Matsumura
- Gene Research Center, Shinshu University, Ueda 386-8567, Japan
| | - Carlos Borroto
- Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Colonia Chuburná de Hidalgo, 97200 Mérida, Yucatán, México
| | - Jonathan D Walton
- Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, USA 48824
| | - Ramon Santos
- Centro de Bioplantas, Carretera de Morón Km 9, Ciego de Avila, C. P. 69450, Cuba
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Gonzalez M, Pujol M, Metraux JP, Gonzalez-Garcia V, Bolton MD, Borrás-Hidalgo O. Tobacco leaf spot and root rot caused by Rhizoctonia solani Kühn. Mol Plant Pathol 2011; 12:209-16. [PMID: 21355993 PMCID: PMC6640363 DOI: 10.1111/j.1364-3703.2010.00664.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Rhizoctonia solani Kühn is a soil-borne fungal pathogen that causes disease in a wide range of plants worldwide. Strains of the fungus are traditionally grouped into genetically isolated anastomosis groups (AGs) based on hyphal anastomosis reactions. This article summarizes aspects related to the infection process, colonization of the host and molecular mechanisms employed by tobacco plants in resistance against R. solani diseases. TAXONOMY Teleomorph: Thanatephorus cucumeris (Frank) Donk; anamorph: Rhizoctonia solani Kühn; Kingdom Fungi; Phylum Basidiomycota; Class Agaricomycetes; Order Cantharellales; Family Ceratobasidiaceae; genus Thanatephorus. IDENTIFICATION Somatic hyphae in culture and hyphae colonizing a substrate or host are first hyaline, then buff to dark brown in colour when aging. Hyphae tend to form at right angles at branching points that are usually constricted. Cells lack clamp connections, but possess a complex dolipore septum with continuous parenthesomes and are multinucleate. Hyphae are variable in size, ranging from 3 to 17 µm in diameter. Although the fungus does not produce any conidial structure, ellipsoid to globose, barrel-shaped cells, named monilioid cells, 10-20 µm wide, can be produced in chains and can give rise to sclerotia. Sclerotia are irregularly shaped, up to 8-10 mm in diameter and light to dark brown in colour. DISEASE SYMPTOMS Symptoms in tobacco depend on AG as well as on the tissue being colonized. Rhizoctonia solani AG-2-2 and AG-3 infect tobacco seedlings and cause damping off and stem rot. Rhizoctonia solani AG-3 causes 'sore shin' and 'target spot' in mature tobacco plants. In general, water-soaked lesions start on leaves and extend up the stem. Stem lesions vary in colour from brown to black. During late stages, diseased leaves are easily separated from the plant because of severe wilting. In seed beds, disease areas are typically in the form of circular to irregular patches of poorly growing, yellowish and/or stunted seedlings. RESISTANCE Knowledge is scarce regarding the mechanisms associated with resistance to R. solani in tobacco. However, recent evidence suggests a complex response that involves several constitutive factors, as well as induced barriers controlled by multiple defence pathways. MANAGEMENT This fungus can survive for many years in soil as mycelium, and also by producing sclerotia, which makes the management of the disease using conventional means very difficult. Integrated pest management has been most successful; it includes timely fungicide applications, crop rotation and attention to soil moisture levels. Recent developments in biocontrol may provide other tools to control R. solani in tobacco.
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Affiliation(s)
- Marleny Gonzalez
- Laboratory of Plant Functional Genomics, Center for Genetic Engineering and Biotechnology, P.O. Box 6162, Havana, 10600, Cuba Plant Health Institute, Playa, Havana 11600, Cuba
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Rodríguez-Cabrera L, Trujillo-Bacallao D, Borrás-Hidalgo O, Wright DJ, Ayra-Pardo C. RNAi-mediated knockdown of a Spodoptera frugiperda trypsin-like serine-protease gene reduces susceptibility to a Bacillus thuringiensis Cry1Ca1 protoxin. Environ Microbiol 2010; 12:2894-903. [DOI: 10.1111/j.1462-2920.2010.02259.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Portieles R, Ayra C, Gonzalez E, Gallo A, Rodriguez R, Chacón O, López Y, Rodriguez M, Castillo J, Pujol M, Enriquez G, Borroto C, Trujillo L, Thomma BPHJ, Borrás-Hidalgo O. NmDef02, a novel antimicrobial gene isolated from Nicotiana megalosiphon confers high-level pathogen resistance under greenhouse and field conditions. Plant Biotechnol J 2010; 8:678-90. [PMID: 20626828 DOI: 10.1111/j.1467-7652.2010.00501.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Plant defensins are small cysteine-rich peptides that inhibit the growth of a broad range of microbes. In this article, we describe NmDef02, a novel cDNA encoding a putative defensin isolated from Nicotiana megalosiphon upon inoculation with the tobacco blue mould pathogen Peronospora hyoscyami f.sp. tabacina. NmDef02 was heterologously expressed in the yeast Pichia pastoris, and the purified recombinant protein was found to display antimicrobial activity in vitro against important plant pathogens. Constitutive expression of NmDef02 gene in transgenic tobacco and potato plants enhanced resistance against various plant microbial pathogens, including the oomycete Phytophthora infestans, causal agent of the economically important potato late blight disease, under greenhouse and field conditions.
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Chacón O, González M, López Y, Portieles R, Pujol M, González E, Schoonbeek HJ, Métraux JP, Borrás-Hidalgo O. Over-expression of a protein kinase gene enhances the defense of tobacco against Rhizoctonia solani. Gene 2010; 452:54-62. [PMID: 20004236 DOI: 10.1016/j.gene.2009.11.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Revised: 11/18/2009] [Accepted: 11/22/2009] [Indexed: 11/22/2022]
Abstract
To identify Nicotiana tabacum genes involved in resistance and susceptibility to Rhizoctonia solani, suppression subtractive hybridization was used to generate a cDNA library from transcripts that are differentially expressed during a compatible and incompatible interaction. This allowed the isolation of a protein kinase cDNA that was down-regulated during a compatible and up-regulated during an incompatible interaction. Quantitative RT-PCR analysis of this gene confirmed the differential expression patterns between the compatible and incompatible interactions. Over-expression of this gene in tobacco enhanced the resistance to damping-off produced by an aggressive R. solani strain. Furthermore, silencing of this protein kinase gene reduced the resistance to a non-aggressive R. solani strain. A set of reported tobacco-resistant genes were also evaluated in tobacco plants over-expressing and silencing the protein kinase cDNA. Several genes previously associated with resistance in tobacco, like manganese superoxide dismutase, Hsr203J, chitinases and phenylalanine ammonia-lyase, were up-regulated in tobacco plants over-expressing the protein kinase cDNA. Potentially, the protein kinase gene could be used to engineer resistance to R. solani in tobacco cultivars susceptible to this important pathogen.
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Affiliation(s)
- Osmany Chacón
- Laboratory of Plant Functional Genomics, Center for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
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Abstract
Blue mould [Peronospora hyoscyami f. sp. tabacina (Adam) Skalicky 1964] is one of the most important foliar diseases of tobacco that causes significant losses in the Americas, south-eastern Europe and the Middle East. This review summarizes the current knowledge of the mechanisms employed by this oomycete pathogen to colonize its host, with emphasis on molecular aspects of pathogenicity. In addition, key biochemical and molecular mechanisms involved in tobacco resistance to blue mould are discussed. TAXONOMY Kingdom: Chromista (Straminipila); Phylum: Heterokontophyta; Class: Oomycete; Order: Peronosporales; Family: Peronosporaceae; Genus: Peronospora; Species: Peronospora hyoscyami f. sp. tabacina. DISEASE SYMPTOMS The pathogen typically causes localized lesions on tobacco leaves that appear as single, or groups of, yellow spots that often coalesce to form light-brown necrotic areas. Some of the leaves exhibit grey to bluish downy mould on their lower surfaces. Diseased leaves can become twisted, such that the lower surfaces turn upwards. In such cases, the bluish colour of the diseased plants becomes quite conspicuous, especially under moist conditions when sporulation is abundant. Hence the name of the disease: tobacco blue mould. INFECTION PROCESS The pathogen develops haustoria within plant cells that are thought to establish the transfer of nutrients from the host cell, and may also act in the delivery of effector proteins during infection. RESISTANCE Several defence responses have been reported to occur in the Nicotiana tabacum-P. hyoscyami f. sp. tabacina interaction. These include the induction of pathogenesis-related genes, and a correlated increase in the activities of typical pathogenesis-related proteins, such as peroxidases, chitinases, beta-1,3-glucanases and lipoxygenases. Systemic acquired resistance is one of the best characterized tobacco defence responses activated on pathogen infection.
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Affiliation(s)
- Orlando Borrás-Hidalgo
- Laboratory of Plant Functional Genomics, Center for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba.
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18
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Hernández I, Chacón O, Rodriguez R, Portieles R, López Y, Pujol M, Borrás-Hidalgo O. Black shank resistant tobacco by silencing of glutathione S-transferase. Biochem Biophys Res Commun 2009; 387:300-4. [PMID: 19577539 DOI: 10.1016/j.bbrc.2009.07.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Accepted: 07/01/2009] [Indexed: 11/16/2022]
Abstract
A glutathione S-transferase gene was amplified from cDNA of Nicotiana tabacum roots infected with Phytophthora parasitica var. nicotianae. The gene was cloned in sense and anti-sense orientation to an RNAi vector for induced gene silencing, and reduced expression of the gene was detected by RT-PCR. A statistically significant increase in resistance of N. tabacum to infection following gene silencing was found for glutathione S-transferase-silenced plants compared with control plants. Some defense genes were up-regulated in glutathione S-transferase-silenced plants during the interaction with the pathogen. This is the first evidence of the role of glutathione S-transferase as negative regulator of defense response.
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Affiliation(s)
- Ingrid Hernández
- Laboratory of Plant Functional Genomics, Center for Genetic Engineering and Biotechnology, Havana 10600, Cuba
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19
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Bolton MD, van Esse HP, Vossen JH, de Jonge R, Stergiopoulos I, Stulemeijer IJE, van den Berg GCM, Borrás-Hidalgo O, Dekker HL, de Koster CG, de Wit PJGM, Joosten MHAJ, Thomma BPHJ. The novel Cladosporium fulvum lysin motif effector Ecp6 is a virulence factor with orthologues in other fungal species. Mol Microbiol 2008; 69:119-36. [PMID: 18452583 DOI: 10.1111/j.1365-2958.2008.06270.x] [Citation(s) in RCA: 192] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
During tomato leaf colonization, the biotrophic fungus Cladosporium fulvum secretes several effector proteins into the apoplast. Eight effectors have previously been characterized and show no significant homology to each other or to other fungal genes. To discover novel C. fulvum effectors that might play a role in virulence, we utilized two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) to visualize proteins secreted during C. fulvum-tomato interactions. Three novel C. fulvum proteins were identified: CfPhiA, Ecp6 and Ecp7. CfPhiA shows homology to proteins found on fungal sporogenous cells called phialides. Ecp6 contains lysin motifs (LysM domains) that are recognized as carbohydrate-binding modules. Ecp7 encodes a small, cysteine-rich protein with no homology to known proteins. Heterologous expression of Ecp6 significantly increased the virulence of the vascular pathogen Fusarium oxysporum on tomato. Furthermore, by RNA interference (RNAi)-mediated gene silencing we demonstrate that Ecp6 is instrumental for C. fulvum virulence on tomato. Hardly any allelic variation was observed in the Ecp6 coding region of a worldwide collection of C. fulvum strains. Although none of the C. fulvum effectors identified so far have obvious orthologues in other organisms, conserved Ecp6 orthologues were identified in various fungal species. Homology-based modelling suggests that the LysM domains of C. fulvum Ecp6 may be involved in chitin binding.
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Affiliation(s)
- Melvin D Bolton
- Laboratory of Phytopathology, Wageningen University, Binnenhaven 5, Wageningen, The Netherlands
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Trujillo LE, Sotolongo M, Menéndez C, Ochogavía ME, Coll Y, Hernández I, Borrás-Hidalgo O, Thomma BPHJ, Vera P, Hernández L. SodERF3, a novel sugarcane ethylene responsive factor (ERF), enhances salt and drought tolerance when overexpressed in tobacco plants. Plant Cell Physiol 2008; 49:512-25. [PMID: 18281696 DOI: 10.1093/pcp/pcn025] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
The molecular signals and pathways that govern biotic and abiotic stress responses in sugarcane are poorly understood. Here we describe SodERF3, a sugarcane (Saccharum officinarum L. cv Ja60-5) cDNA that encodes a 201-amino acid DNA-binding protein that acts as a transcriptional regulator of the ethylene responsive factor (ERF) superfamily. Like other ERF transcription factors, the SodERF3 protein binds to the GCC box, and its deduced amino acid sequence contains an N-terminal putative nuclear localization signal (NLS). In addition, a C-terminal short hydrophobic region that is highly homologous to an ERF-associated amphiphilic repression-like motif, typical for class II ERFs, was found. Northern and Western blot analysis showed that SodERF3 is induced by ethylene. In addition, SodERF3 is induced by ABA, salt stress and wounding. Greenhouse-grown transgenic tobacco plants (Nicotiana tabacum L. cv. SR1) expressing SodERF3 were found to display increased tolerance to drought and osmotic stress.
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Affiliation(s)
- L E Trujillo
- Laboratory of Plant Microbe Interactions, Center for Genetic Engineering and Biotechnology, Havana, Cuba.
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Rodríguez-Cabrera L, Trujillo-Bacallao D, Borrás-Hidalgo O, Wright DJ, Ayra-Pardo C. Molecular characterization of Spodoptera frugiperda-Bacillus thuringiensis Cry1Ca toxin interaction. Toxicon 2007; 51:681-92. [PMID: 18222513 DOI: 10.1016/j.toxicon.2007.12.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2007] [Revised: 12/01/2007] [Accepted: 12/05/2007] [Indexed: 10/22/2022]
Abstract
The use of Bacillus thuringiensis Cry delta-endotoxins as bioinsecticides is threatened by the possibility of pest resistance. Determining transcriptional profiles of midgut cells early in Cry toxin poisoning is crucial for understanding the biochemical and molecular aspects of insect detoxification and for sustained use of such toxins. In this study, transcriptional responses of midgut cells from Spodoptera frugiperda third-instar larvae following treatment with Cry1Ca were investigated. Suppression subtractive hybridization (SSH) on insect midguts dissected at different time intervals during the first 24h of exposure to a sublethal concentration of Cry1Ca was used to isolate and identify S. frugiperda gut genes that change in expression on intoxication. After differential screening by membrane-based hybridization, 86 cDNA fragments were selected, sequenced, and analyzed in databases using BLASTN/BLASTX. The cDNA collection comprised a repertoire of genes mainly associated with metabolism, defence and oxidative stress. The expression of a subset of these genes was further investigated. Northern blot analysis confirmed the differential expression patterns between intoxicated and control larvae. The transcript accumulation rate at six different times taken after the initiation of the intoxication point was also examined. Differential expression of most genes examined was detected within 15 min after toxin challenge, where defence and oxidative stress-related genes were transcriptionally enhanced and metabolic-related genes were repressed.
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Affiliation(s)
- Lianet Rodríguez-Cabrera
- Department of Environmental Biotechnology, Centre for Genetic Engineering and Biotechnology (CIGB), Havana 10600, Cuba
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Borrás-Hidalgo O, Thomma BPHJ, Collazo C, Chacón O, Borroto CJ, Ayra C, Portieles LR, López Y, Pujol M. EIL2 transcription factor and glutathione synthetase are required for defense of tobacco against tobacco blue mold. Mol Plant Microbe Interact 2006; 19:399-406. [PMID: 16610743 DOI: 10.1094/mpmi-19-0399] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In order to identify tobacco (Nicotiana megalosiphon) genes involved in broad-spectrum resistance to tobacco blue mold (Peronospora hyoscyami f. sp. tabacina), suppression subtractive hybridization was used to generate cDNA from transcripts that are differentially expressed during an incompatible interaction. After differential screening by membrane-based hybridization, clones corresponding to 182 differentially expressed genes were selected, sequenced, and analyzed. The cDNA collection comprised a broad repertoire of genes associated with various processes. Northern blot analysis of a subset of these genes confirmed the differential expression patterns between the compatible and incompatible interaction. Subsequent virus-induced gene silencing (VIGS) of four genes that were found to be differentially induced was pursued. While VIGS of a lipid transfer protein gene or a glutamate decarboxylase gene in Nicotiana megalosiphon did not affect blue mold resistance, silencing of an EIL2 transcription factor gene and a glutathione synthetase gene was found to compromise the resistance of Nicotiana megalosiphon to P. hyoscyami f. sp. tabacina. Potentially, these genes can be used to engineer resistance in blue mold-susceptible tobacco cultivars.
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Affiliation(s)
- Orlando Borrás-Hidalgo
- Laboratory of Plant Functional Genomics, Center for Genetic Engineering and Biotechnology, P.O. Box 6162, Havana, 10600, Cuba.
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Rodríguez M, Canales E, Borroto CJ, Carmona E, López J, Pujol M, Borrás-Hidalgo O. Identification of genes induced upon water-deficit stress in a drought-tolerant rice cultivar. J Plant Physiol 2006; 163:577-84. [PMID: 16473663 DOI: 10.1016/j.jplph.2005.07.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2005] [Accepted: 07/05/2005] [Indexed: 05/05/2023]
Abstract
Among the abiotic stresses, the availability of water is the most important factor that limits the productive potential of higher plants. The identification of novel genes, determination of their expression patterns, and the understanding of their functions in stress adaptation is essential to improve stress tolerance. Amplified fragment length polymorphism analysis of cDNA was used to identify rice genes differentially expressed in a tolerant rice variety upon water-deficit stress. In total, 103 transcript-derived fragments corresponding to differentially induced genes were identified. The results of the sequence comparison in BLAST database revealed that several differentially expressed TDFs were significantly homologous to stress regulated genes/proteins isolated from rice or other plant species. Most of the transcripts identified here were genes related to metabolism, energy, protein biosynthesis, cell defence, signal transduction, and transport. New genes involved in the response to water-deficit stress in a tolerant rice variety are reported here.
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Affiliation(s)
- Mayra Rodríguez
- Laboratory of Plant Functional Genomics, Head of the Plant Functional Genomic Department, Plant Division, Center for Genetic Engineering and Biotechnology (C.I.G.B.), P.O. Box 6162, La Habana 10600, Cuba
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Borrás-Hidalgo O, Thomma BPHJ, Carmona E, Borroto CJ, Pujol M, Arencibia A, Lopez J. Identification of sugarcane genes induced in disease-resistant somaclones upon inoculation with Ustilago scitaminea or Bipolaris sacchari. Plant Physiol Biochem 2005; 43:1115-21. [PMID: 16386426 DOI: 10.1016/j.plaphy.2005.07.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2005] [Revised: 06/10/2005] [Accepted: 07/30/2005] [Indexed: 05/05/2023]
Abstract
To understand the molecular basis of a specific plant-pathogen interaction, it is important to identify plant genes that respond to the pathogen attack. Amplified fragment length polymorphism (AFLP) analysis of cDNA was used to identify sugarcane genes differentially expressed in disease-resistant but not in susceptible sugarcane somaclones in response to inoculation with either Ustilago scitaminea or Bipolaris sacchari (also known as Helminthosporium sacchari or Drechslera sacchari), causal agents of smut and eyespot respectively. In total 62 differentially regulated genes were identified, of which 10 were down-regulated and 52 were induced. Of these 52, 19 transcript derived fragments showed homology to known plant gene sequences, most of them related to defense or signaling. The total set of differentially expressed sugarcane genes can be an important resource for further studies aimed at understanding sugarcane pathogen defense.
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Affiliation(s)
- Orlando Borrás-Hidalgo
- Laboratory of Plant Functional Genomics, Center for Genetic Engineering and Biotechnology, P. O. Box 6162, Havana 10600, Cuba.
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