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Wang J, Xu S, Mei Y, Cai S, Gu Y, Sun M, Liang Z, Xiao Y, Zhang M, Yang S. A high-quality genome assembly of Morinda officinalis, a famous native southern herb in the Lingnan region of southern China. HORTICULTURE RESEARCH 2021; 8:135. [PMID: 34059651 PMCID: PMC8166937 DOI: 10.1038/s41438-021-00551-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/23/2021] [Accepted: 03/22/2021] [Indexed: 05/03/2023]
Abstract
Morinda officinalis is a well-known medicinal and edible plant that is widely cultivated in the Lingnan region of southern China. Its dried roots (called bajitian in traditional Chinese medicine) are broadly used to treat various diseases, such as impotence and rheumatism. Here, we report a high-quality chromosome-scale genome assembly of M. officinalis using Nanopore single-molecule sequencing and Hi-C technology. The assembled genome size was 484.85 Mb with a scaffold N50 of 40.97 Mb, and 90.77% of the assembled sequences were anchored on eleven pseudochromosomes. The genome includes 27,698 protein-coding genes, and most of the assemblies are repetitive sequences. Genome evolution analysis revealed that M. officinalis underwent core eudicot γ genome triplication events but no recent whole-genome duplication (WGD). Likewise, comparative genomic analysis showed no large-scale structural variation after species divergence between M. officinalis and Coffea canephora. Moreover, gene family analysis indicated that gene families associated with plant-pathogen interactions and sugar metabolism were significantly expanded in M. officinalis. Furthermore, we identified many candidate genes involved in the biosynthesis of major active components such as anthraquinones, iridoids and polysaccharides. In addition, we also found that the DHQS, GGPPS, TPS-Clin, TPS04, sacA, and UGDH gene families-which include the critical genes for active component biosynthesis-were expanded in M. officinalis. This study provides a valuable resource for understanding M. officinalis genome evolution and active component biosynthesis. This work will facilitate genetic improvement and molecular breeding of this commercially important plant.
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Affiliation(s)
- Jihua Wang
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Shiqiang Xu
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Yu Mei
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Shike Cai
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Yan Gu
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Minyang Sun
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Zhan Liang
- DongFuhang High-tech Agricultural Planting and Management Co., Ltd, 526000, Zhaoqing, China
| | - Yong Xiao
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, 571339, Wenchang, China.
| | - Muqing Zhang
- State Key Lab for Conservation and Utilization of Subtropical Agric-Biological Resources, Guangxi University, 530005, Nanning, China.
| | - Shaohai Yang
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China.
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Possa KF, Silva JAG, Resende MLV, Tenente R, Pinheiro C, Chaves I, Planchon S, Monteiro ACA, Renaut J, Carvalho MAF, Ricardo CP, Guerra-Guimarães L. Primary Metabolism Is Distinctly Modulated by Plant Resistance Inducers in Coffea arabica Leaves Infected by Hemileia vastatrix. FRONTIERS IN PLANT SCIENCE 2020; 11:309. [PMID: 32265962 PMCID: PMC7099052 DOI: 10.3389/fpls.2020.00309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 03/03/2020] [Indexed: 05/06/2023]
Abstract
Epidemics of coffee leaf rust (CLR) leads to great yield losses and huge depreciation of coffee marketing values, if no control measures are applied. Societal expectations of a more sustainable coffee production are increasingly imposing the replacement of fungicide treatments by alternative solutions. A protection strategy is to take advantage of the plant immune system by eliciting constitutive defenses. Based on such concept, plant resistance inducers (PRIs) have been developed. The Greenforce CuCa formulation, similarly to acibenzolar-S-methyl (ASM), shows promising results in the control of CLR (Hemileia vastatrix) in Coffea arabica cv. Mundo Novo. The molecular mechanisms of PRIs action are poorly understood. In order to contribute to its elucidation a proteomic, physiological (leaf gas-exchange) and biochemical (enzymatic) analyses were performed. Coffee leaves treated with Greenforce CuCa and ASM and inoculation with H. vastatrix were considered. Proteomics revealed that both PRIs lead to metabolic adjustments but, inducing distinct proteins. These proteins were related with photosynthesis, protein metabolism and stress responses. Greenforce CuCa increased photosynthesis and stomatal conductance, while ASM caused a decrease in these parameters. It was further observed that Greenforce CuCa reinforces the redox homeostasis of the leaf, while ASM seems to affect preferentially the secondary metabolism and the stress-related proteins. So, the PRIs prepare the plant to resist CLR but, inducing different defense mechanisms upon pathogen infection. The existence of a link between the primary metabolism and defense responses was evidenced. The identification of components of the plant primary metabolism, essential for plant growth and development that, simultaneously, participate in the plant defense responses can open new perspectives for plant breeding programs.
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Affiliation(s)
- Kátia Ferreira Possa
- Departamento de Fitopatologia, Universidade Federal de Lavras, Lavras, Brazil
- Centro de Investigação das Ferrugens do Cafeeiro, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | | | | | - Rita Tenente
- Centro de Investigação das Ferrugens do Cafeeiro, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - Carla Pinheiro
- Instituto de Tecnologia Química e Biológica (ITQB NOVA), Universidade NOVA de Lisboa, Lisbon, Portugal
- Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Inês Chaves
- Instituto de Tecnologia Química e Biológica (ITQB NOVA), Universidade NOVA de Lisboa, Lisbon, Portugal
- Instituto de Biologia Experimental e Tecnológica (iBET), Oeiras, Portugal
| | - Sebastien Planchon
- Luxembourg Institute of Science and Technology, Environmental Research and Innovation Department, Belval, Luxembourg
| | | | - Jenny Renaut
- Luxembourg Institute of Science and Technology, Environmental Research and Innovation Department, Belval, Luxembourg
| | | | - Cândido Pinto Ricardo
- Instituto de Tecnologia Química e Biológica (ITQB NOVA), Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Leonor Guerra-Guimarães
- Centro de Investigação das Ferrugens do Cafeeiro, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
- Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
- *Correspondence: Leonor Guerra-Guimarães,
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Chwil M, Kostryco M. Histochemical assays of secretory trichomes and the structure and content of mineral nutrients in Rubus idaeus L. leaves. PROTOPLASMA 2020; 257:119-139. [PMID: 31399808 PMCID: PMC6982638 DOI: 10.1007/s00709-019-01426-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/18/2019] [Indexed: 06/10/2023]
Abstract
Leaves of Rubus idaeus are a raw material, ingredients of herbal blend, and a source of antioxidants. There are no data concerning histochemistry of trichomes, and little is known about the leaf structure of this species. The aim of this study was to determine the histochemistry of active compounds and the structure of glandular trichomes, micromorphology, anatomy, and ultrastructure of leaves as well as content of elements. To determine the histochemistry of glandular trichomes, different chemical compounds were used. The leaf structure was analysed using light, scanning, and transmission electron microscopes. The content of elements was determined with atomic absorption spectrometry, and the microanalysis of the epidermis ultrastructure was carried out with a transmission electron microscope equipped with a digital X-ray analyser. In glandular trichomes, polyphenols, terpenes, lipids, proteins, and carbohydrates were identified. The main elements in the ultrastructure of the epidermis were Na, Mo, Se, Ca, and Mg. In dry matter of leaves, K, Mg, Ca, P, and Fe were dominant. Infusions from leaves are safe for health in terms of the Cd and Pb concentrations. Leaves can be a valuable raw material. Non-glandular trichomes prevent clumping of mixed raw materials in herbal mixtures.
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Affiliation(s)
- Mirosława Chwil
- Department of Botany and Plant Physiology, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
| | - Mikołaj Kostryco
- Department of Botany and Plant Physiology, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
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Sheshukova EV, Komarova TV, Ershova NM, Shindyapina AV, Dorokhov YL. An Alternative Nested Reading Frame May Participate in the Stress-Dependent Expression of a Plant Gene. FRONTIERS IN PLANT SCIENCE 2017; 8:2137. [PMID: 29312392 PMCID: PMC5742262 DOI: 10.3389/fpls.2017.02137] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/04/2017] [Indexed: 06/07/2023]
Abstract
Although plants as sessile organisms are affected by a variety of stressors in the field, the stress factors for the above-ground and underground parts of the plant and their gene expression profiles are not the same. Here, we investigated NbKPILP, a gene encoding a new member of the ubiquitous, pathogenesis-related Kunitz peptidase inhibitor (KPI)-like protein family, that we discovered in the genome of Nicotiana benthamiana and other representatives of the Solanaceae family. The NbKPILP gene encodes a protein that has all the structural elements characteristic of KPI but in contrast to the proven A. thaliana KPI (AtKPI), it does not inhibit serine peptidases. Unlike roots, NbKPILP mRNA and its corresponding protein were not detected in intact leaves, but abiotic and biotic stressors drastically affected NbKPILP mRNA accumulation. In search of the causes of suppressed NbKPILP mRNA accumulation in leaves, we found that the NbKPILP gene is "matryoshka," containing an alternative nested reading frame (ANRF) encoding a 53-amino acid (aa) polypeptide (53aa-ANRF) which has an amphipathic helix (AH). We confirmed ANRF expression experimentally. A vector containing a GFP-encoding sequence was inserted into the NbKPILP gene in frame with 53aa-ANRF, resulting in a 53aa-GFP fused protein that localized in the membrane fraction of cells. Using the 5'-RACE approach, we have shown that the expression of ANRF was not explained by the existence of a cryptic promoter within the NbKPILP gene but was controlled by the maternal NbKPILP mRNA. We found that insertion of mutations destroying the 53aa-ANRF AH resulted in more than a two-fold increase of the NbKPILP mRNA level. The NbKPILP gene represents the first example of ANRF functioning as a repressor of a maternal gene in an intact plant. We proposed a model where the stress influencing the translation initiation promotes the accumulation of NbKPILP and its mRNA in leaves.
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Affiliation(s)
- Ekaterina V. Sheshukova
- Department of Genetics and Biotechnology, N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Tatiana V. Komarova
- Department of Genetics and Biotechnology, N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Natalia M. Ershova
- Department of Genetics and Biotechnology, N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Anastasia V. Shindyapina
- Department of Genetics and Biotechnology, N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Yuri L. Dorokhov
- Department of Genetics and Biotechnology, N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
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Talhinhas P, Batista D, Diniz I, Vieira A, Silva DN, Loureiro A, Tavares S, Pereira AP, Azinheira HG, Guerra‐Guimarães L, Várzea V, Silva MDC. The coffee leaf rust pathogen Hemileia vastatrix: one and a half centuries around the tropics. MOLECULAR PLANT PATHOLOGY 2017; 18:1039-1051. [PMID: 27885775 PMCID: PMC6638270 DOI: 10.1111/mpp.12512] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 11/09/2016] [Accepted: 11/12/2016] [Indexed: 05/22/2023]
Abstract
TAXONOMY AND HISTORY Hemileia vastatrix Berk. and Broome (Basidiomycota, Pucciniales) was described in 1869 in eastern Africa and Ceylon as the agent of coffee leaf rust and has spread to all coffee cultivation areas worldwide. Major disease outbreaks in Asia, Africa and America caused and continue to cause severe yield losses, making this the most important disease of Arabica coffee, a cash crop for many tropical and sub-tropical countries. LIFE CYCLE AND DISEASE SYMPTOMS Hemileia vastatrix is a hemicyclic fungus with the urediniosporic life cycle as its most important (if not only) source of inoculum. Chlorotic spots are the first macroscopic symptoms, preceding the differentiation of suprastomatal, bouquet-shaped, orange-coloured uredinia. The disease can cause yield losses of up to 35% and have a polyetic epidemiological impact on subsequent years. DISEASE CONTROL Although the use of fungicides is one of the preferred immediate control measures, the use of resistant cultivars is considered to be the most effective and durable disease control strategy. The discovery of 'Híbrido de Timor' provided sources of resistance that have been used in several breeding programmes and that have been proven to be effective and durable, as some have been in use for more than 30 years. GENETIC DIVERSITY AND MOLECULAR PATHOGENICITY Although exhibiting limited genetic polymorphism, the very large genome of H. vastatrix (c. 797 Mbp) conceals great pathological diversity, with more than 50 physiological races. Gene expression studies have revealed a very precocious activation of signalling pathways and production of putative effectors, suggesting that the plant-fungus dialogue starts as early as at the germ tube stage, and have provided clues for the identification of avr genes.
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Affiliation(s)
- Pedro Talhinhas
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- LEAF, Linking Landscape, Environment, Agriculture and FoodInstituto Superior de Agronomia, Universidade de LisboaTapada da AjudaLisbon1349‐017Portugal
| | - Dora Batista
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- LEAF, Linking Landscape, Environment, Agriculture and FoodInstituto Superior de Agronomia, Universidade de LisboaTapada da AjudaLisbon1349‐017Portugal
- Computational Biology and Population Genomics Group, cE3c – Centre for EcologyEvolution and Environmental Changes, Faculdade de Ciências, Universidade de LisboaCampo GrandeLisbon1749‐016Portugal
| | - Inês Diniz
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- LEAF, Linking Landscape, Environment, Agriculture and FoodInstituto Superior de Agronomia, Universidade de LisboaTapada da AjudaLisbon1349‐017Portugal
| | - Ana Vieira
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- Computational Biology and Population Genomics Group, cE3c – Centre for EcologyEvolution and Environmental Changes, Faculdade de Ciências, Universidade de LisboaCampo GrandeLisbon1749‐016Portugal
| | - Diogo N. Silva
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- Computational Biology and Population Genomics Group, cE3c – Centre for EcologyEvolution and Environmental Changes, Faculdade de Ciências, Universidade de LisboaCampo GrandeLisbon1749‐016Portugal
| | - Andreia Loureiro
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- LEAF, Linking Landscape, Environment, Agriculture and FoodInstituto Superior de Agronomia, Universidade de LisboaTapada da AjudaLisbon1349‐017Portugal
| | - Sílvia Tavares
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
| | - Ana Paula Pereira
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
| | - Helena G. Azinheira
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- LEAF, Linking Landscape, Environment, Agriculture and FoodInstituto Superior de Agronomia, Universidade de LisboaTapada da AjudaLisbon1349‐017Portugal
| | - Leonor Guerra‐Guimarães
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- LEAF, Linking Landscape, Environment, Agriculture and FoodInstituto Superior de Agronomia, Universidade de LisboaTapada da AjudaLisbon1349‐017Portugal
| | - Vítor Várzea
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- LEAF, Linking Landscape, Environment, Agriculture and FoodInstituto Superior de Agronomia, Universidade de LisboaTapada da AjudaLisbon1349‐017Portugal
| | - Maria do Céu Silva
- CIFC, Centro de Investigação das Ferrugens do CafeeiroInstituto Superior de Agronomia, Universidade de LisboaQuinta do MarquêsOeiras2784‐505Portugal
- LEAF, Linking Landscape, Environment, Agriculture and FoodInstituto Superior de Agronomia, Universidade de LisboaTapada da AjudaLisbon1349‐017Portugal
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Tran HT, Lee LS, Furtado A, Smyth H, Henry RJ. Advances in genomics for the improvement of quality in coffee. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:3300-3312. [PMID: 26919810 DOI: 10.1002/jsfa.7692] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 02/08/2016] [Accepted: 02/23/2016] [Indexed: 06/05/2023]
Abstract
Coffee is an important crop that provides a livelihood to millions of people living in developing countries. Production of genotypes with improved coffee quality attributes is a primary target of coffee genetic improvement programmes. Advances in genomics are providing new tools for analysis of coffee quality at the molecular level. The recent report of a genomic sequence for robusta coffee, Coffea canephora, is a major development. However, a reference genome sequence for the genetically more complex arabica coffee (C. arabica) will also be required to fully define the molecular determinants controlling quality in coffee produced from this high quality coffee species. Genes responsible for control of the levels of the major biochemical components in the coffee bean that are known to be important in determining coffee quality can now be identified by association analysis. However, the narrow genetic base of arabica coffee suggests that genomics analysis of the wild relatives of coffee (Coffea spp.) may be required to find the phenotypic diversity required for effective association genetic analysis. The genomic resources available for the study of coffee quality are described and the potential for the application of next generation sequencing and association genetic analysis to advance coffee quality research are explored. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Hue Tm Tran
- Queensland Alliance for Agri culture and Food Innovation (QAAFI), The University of Queensland, St Lucia, Queensland, Australia
- Western Highlands Agriculture & Forestry Science Institute (WASI), Daklak, Vietnam
| | - L Slade Lee
- Southern Cross University, East Lismore, NSW 2480, Australia
| | - Agnelo Furtado
- Queensland Alliance for Agri culture and Food Innovation (QAAFI), The University of Queensland, St Lucia, Queensland, Australia
| | - Heather Smyth
- Queensland Alliance for Agri culture and Food Innovation (QAAFI), The University of Queensland, St Lucia, Queensland, Australia
| | - Robert J Henry
- Queensland Alliance for Agri culture and Food Innovation (QAAFI), The University of Queensland, St Lucia, Queensland, Australia
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Yu X, Armstrong CM, Zhou M, Duan Y. Bismerthiazol Inhibits Xanthomonas citri subsp. citri Growth and Induces Differential Expression of Citrus Defense-Related Genes. PHYTOPATHOLOGY 2016; 106:693-701. [PMID: 26882850 DOI: 10.1094/phyto-12-15-0328-r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Citrus canker, caused by Xanthomonas citri ssp. citri, is a serious disease that causes substantial economic losses to the citrus industry worldwide. The bactericide bismerthiazol has been used to control rice bacterial blight (X. oryzae pv. oryzae). In this paper, we demonstrate that bismerthiazol can effectively control citrus canker by both inhibiting the growth of X. citri ssp. citri and triggering the plant's host defense response through the expression of several pathogenesis-related genes (PR1, PR2, CHI, and RpRd1) and the nonexpresser of PR genes (NPR1, NPR2, and NPR3) in 'Duncan' grapefruit, especially at early treatment times. In addition, we found that bismerthiazol induced the expression of the marker genes CitCHS and CitCHI in the flavonoid pathway and the PAL1 (phenylalanine ammonia lyase 1) gene in the salicylic acid (SA) biosynthesis pathway at different time points. Moreover, bismerthiazol also induced the expression of the priming defense-associated gene AZI1. Taken together, these results indicate that the induction of the defense response in 'Duncan' grapefruit by bismerthiazol may involve the SA signaling pathway and the priming defense and that bismerthiazol may serve as an alternative to copper bactericides for the control of citrus canker.
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Affiliation(s)
- Xiaoyue Yu
- First and third authors: Nanjing Agriculture University, Nanjing 210095, China; and first, second, and fourth authors: U.S. Horticultural Research Laboratory, USDA-ARS, Fort Pierce, FL 34945
| | - Cheryl M Armstrong
- First and third authors: Nanjing Agriculture University, Nanjing 210095, China; and first, second, and fourth authors: U.S. Horticultural Research Laboratory, USDA-ARS, Fort Pierce, FL 34945
| | - Mingguo Zhou
- First and third authors: Nanjing Agriculture University, Nanjing 210095, China; and first, second, and fourth authors: U.S. Horticultural Research Laboratory, USDA-ARS, Fort Pierce, FL 34945
| | - Yongping Duan
- First and third authors: Nanjing Agriculture University, Nanjing 210095, China; and first, second, and fourth authors: U.S. Horticultural Research Laboratory, USDA-ARS, Fort Pierce, FL 34945
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Miniussi M, Del Terra L, Savi T, Pallavicini A, Nardini A. Aquaporins in Coffea arabica L.: Identification, expression, and impacts on plant water relations and hydraulics. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 95:92-102. [PMID: 26241904 DOI: 10.1016/j.plaphy.2015.07.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 07/21/2015] [Indexed: 05/02/2023]
Abstract
Plant aquaporins (AQPs) are involved in the transport of water and other small solutes across cell membranes, and thus play major roles in the regulation of plant water balance, as well as in growth regulation and response to abiotic stress factors. Limited information is currently available about the presence and role of AQPs in Coffea arabica L., despite the economic importance of the species and its vulnerability to drought stress. We identified candidate AQP genes by screening a proprietary C. arabica transcriptome database, resulting in the identification of nine putative aquaporins. A phylogenetic analysis based on previously characterized AQPs from Arabidopsis thaliana and Solanum tuberosum allowed to assign the putative coffee AQP sequences to the Tonoplast (TIP) and Plasma membrane (PIP) subfamilies. The possible functional role of coffee AQPs was explored by measuring hydraulic conductance and aquaporin gene expression on leaf and root tissues of two-year-old plants (C. arabica cv. Pacamara) subjected to different experimental conditions. In a first experiment, we tested plants for root and leaf hydraulic conductance both before dawn and at mid-day, to check the eventual impact of light on AQP activity and plant hydraulics. In a second experiment, we measured plant hydraulic responses to different water stress levels as eventually affected by changes in AQPs expression levels. Our results shed light on the possible roles of AQPs in the regulation of C. arabica hydraulics and water balance, opening promising research lines to improve the sustainability of coffee cultivation under global climate change scenarios.
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Affiliation(s)
- Matilda Miniussi
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy
| | | | - Tadeja Savi
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy
| | - Alberto Pallavicini
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy.
| | - Andrea Nardini
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy.
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9
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Del Terra L, Lonzarich V, Asquini E, Navarini L, Graziosi G, Suggi Liverani F, Pallavicini A. Functional characterization of three Coffea arabica L. monoterpene synthases: insights into the enzymatic machinery of coffee aroma. PHYTOCHEMISTRY 2013; 89:6-14. [PMID: 23398891 DOI: 10.1016/j.phytochem.2013.01.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 01/17/2013] [Accepted: 01/18/2013] [Indexed: 06/01/2023]
Abstract
The chemical composition of the coffee beverage is extremely complex, being made up of hundreds of volatile and non-volatile compounds, many of which are generated in the thermal reactions that occur during the roasting process. However, in the raw coffee bean there are also compounds that survive roasting and are therefore extracted into the beverage. Monoterpenes are an example of this category, as their presence has been reported in the coffee flower, fruit, seed, roasted bean and in the beverage aroma. The present work describes the isolation, heterologous expression and functional characterization of three Coffea arabica cDNAs coding for monoterpene synthases. RNA was purified from C. arabica (cv. Catuai Red) flowers, seeds and fruits at 4 successive ripening stages. Degenerate primers were designed on the most conserved regions of the monoterpene synthase gene family, and then used to isolate monoterpene synthase-like sequences from the cDNA libraries. After 5'- and 3'-RACE, the complete transcripts of 4 putative C. arabica monoterpene synthases (CofarTPS) were obtained. Gene expression in different tissues and developmental stages was analysed. After heterologous expression in Escherichia coli, enzyme activity and substrate specificity were evaluated in vitro by incubation of the recombinant proteins with geranyl pyrophosphate (GPP), geranylgeranyl pyrophosphate (GGPP) and farnesyl pyrophosphate (FPP), precursors respectively of mono-, di- and sesquiterpenes. The reaction products were characterized by HS-SPME GC-MS. CofarTPS1 was classified as a limonene synthase gene, while CofarTPS2 and 3 showed lower activity with the production of linalool and β-myrcene.
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Recent advances in the genetic transformation of coffee. BIOTECHNOLOGY RESEARCH INTERNATIONAL 2012; 2012:580857. [PMID: 22970380 PMCID: PMC3437269 DOI: 10.1155/2012/580857] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 06/18/2012] [Accepted: 06/28/2012] [Indexed: 12/29/2022]
Abstract
Coffee is one of the most important plantation crops, grown in about 80 countries across the world. The genus Coffea comprises approximately 100 species of which only two species, that is, Coffea arabica (commonly known as arabica coffee) and Coffea canephora (known as robusta coffee), are commercially cultivated. Genetic improvement of coffee through traditional breeding is slow due to the perennial nature of the plant. Genetic transformation has tremendous potential in developing improved coffee varieties with desired agronomic traits, which are otherwise difficult to achieve through traditional breeding. During the last twenty years, significant progress has been made in coffee biotechnology, particularly in the area of transgenic technology. This paper provides a detailed account of the advances made in the genetic transformation of coffee and their potential applications.
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Estrada-Hernández MG, Valenzuela-Soto JH, Ibarra-Laclette E, Délano-Frier JP. Differential gene expression in whitefly Bemisia tabaci-infested tomato (Solanum lycopersicum) plants at progressing developmental stages of the insect's life cycle. PHYSIOLOGIA PLANTARUM 2009; 137:44-60. [PMID: 19627556 DOI: 10.1111/j.1399-3054.2009.01260.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A suppression-subtractive-hybridization (SSH) strategy was used to identify genes whose expression was modified in response to virus-free whitefly Bemisia tabaci (Bt, biotype A) infestation in tomato (Solanum lycopersicum) plants. Thus, forward and reverse SSH gene libraries were generated at four points in the whitefly's life cycle, namely at (1) 2 days (adult feeding and oviposition: phase I); (2) 7 days (mobile crawler stage: phase II); (3) 12 days (second to third instar nymphal transition: phase III) and (4) 18 days (fourth instar nymphal stage: phase IV). The 169 genes with altered expression (up and downregulated) that were identified in the eight generated SSH libraries, together with 75 additional genes that were selected on the basis of their involvement in resistance responses against phytofagous insects and pathogens, were printed on a Nexterion(®) Slide MPX 16 to monitor their pattern of expression at the above phases. The results indicated that Bt infestation in tomato led to distinctive phase-specific expression/repression patterns of several genes associated predominantly with photosynthesis, senescence, secondary metabolism and (a)biotic stress. Most of the gene expression modifications were detected in phase III, coinciding with intense larval feeding, whereas fewer changes were detected in phases I and IV. These results complement previously reported gene expression profiles in Bt-infested tomato and Arabidopisis, and support and expand the opinion that Bt infestation leads to the downregulation of specific defense responses in addition to those controlled by jasmonic acid.
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Affiliation(s)
- María Gloria Estrada-Hernández
- Unidad de Biotecnología e Ingeniería Genética de Plantas (Cinvestav-Unidad Irapuato), Km 9.6 del Libramiento Norte Carretera Irapuato-León, Apartado Postal 629, C.P. 36821, Irapuato, Guanajuato, México
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Heil M, Walters DR. Chapter 15 Ecological Consequences of Plant Defence Signalling. ADVANCES IN BOTANICAL RESEARCH 2009. [PMID: 0 DOI: 10.1016/s0065-2296(09)51015-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
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Hukkanen A, Kokko H, Buchala A, Häyrinen J, Kärenlampi S. Benzothiadiazole affects the leaf proteome in arctic bramble (Rubus arcticus). MOLECULAR PLANT PATHOLOGY 2008; 9:799-808. [PMID: 19019008 PMCID: PMC6640374 DOI: 10.1111/j.1364-3703.2008.00502.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Benzothiadiazole (BTH) induces resistance to the downy mildew pathogen, Peronospora sparsa, in arctic bramble, but the basis for the BTH-induced resistance is unknown. Arctic bramble cv. Mespi was treated with BTH to study the changes in leaf proteome and to identify proteins with a putative role in disease resistance. First, BTH induced strong expression of one PR-1 protein isoform, which was also induced by salicylic acid (SA). The PR-1 was responsive to BTH and exogenous SA despite a high endogenous SA content (20-25 microg/g fresh weight), which increased to an even higher level after treatment with BTH. Secondly, a total of 792 protein spots were detected in two-dimensional gel electrophoresis, eight proteins being detected solely in the BTH-treated plants. BTH caused up- or down-regulation of 72 and 31 proteins, respectively, of which 18 were tentatively identified by mass spectrometry. The up-regulation of flavanone-3-hydroxylase, alanine aminotransferase, 1-aminocyclopropane-1-carboxylate oxidase, PR-1 and PR-10 proteins may partly explain the BTH-induced resistance against P. sparsa. Other proteins with changes in intensity appear to be involved in, for example, energy metabolism and protein processing. The decline in ATP synthase, triosephosphate isomerase, fructose bisphosphate aldolase and glutamine synthetase suggests that BTH causes significant changes in primary metabolism, which provides one possible explanation for the decreased vegetative growth of foliage and rhizome observed in BTH-treated plants.
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Affiliation(s)
- Anne Hukkanen
- Department of Biosciences, University of Kuopio, Yliopistonranta 1E, FI-70211 Kuopio, Finland
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