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Olgenblum GI, Hutcheson BO, Pielak GJ, Harries D. Protecting Proteins from Desiccation Stress Using Molecular Glasses and Gels. Chem Rev 2024; 124:5668-5694. [PMID: 38635951 PMCID: PMC11082905 DOI: 10.1021/acs.chemrev.3c00752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/18/2024] [Accepted: 02/22/2024] [Indexed: 04/20/2024]
Abstract
Faced with desiccation stress, many organisms deploy strategies to maintain the integrity of their cellular components. Amorphous glassy media composed of small molecular solutes or protein gels present general strategies for protecting against drying. We review these strategies and the proposed molecular mechanisms to explain protein protection in a vitreous matrix under conditions of low hydration. We also describe efforts to exploit similar strategies in technological applications for protecting proteins in dry or highly desiccated states. Finally, we outline open questions and possibilities for future explorations.
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Affiliation(s)
- Gil I. Olgenblum
- Institute
of Chemistry, Fritz Haber Research Center, and The Harvey M. Krueger
Family Center for Nanoscience & Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Brent O. Hutcheson
- Department
of Chemistry, University of North Carolina
at Chapel Hill (UNC-CH), Chapel
Hill, North Carolina 27599, United States
| | - Gary J. Pielak
- Department
of Chemistry, University of North Carolina
at Chapel Hill (UNC-CH), Chapel
Hill, North Carolina 27599, United States
- Department
of Chemistry, Department of Biochemistry & Biophysics, Integrated
Program for Biological & Genome Sciences, Lineberger Comprehensive
Cancer Center, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Daniel Harries
- Institute
of Chemistry, Fritz Haber Research Center, and The Harvey M. Krueger
Family Center for Nanoscience & Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
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2
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Mladenov P, Wang X, Yang Z, Djilianov D, Deng X. Dynamics of chromatin accessibility and genome wide control of desiccation tolerance in the resurrection plant Haberlea rhodopensis. BMC PLANT BIOLOGY 2023; 23:654. [PMID: 38110858 PMCID: PMC10729425 DOI: 10.1186/s12870-023-04673-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/08/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Drought is one of the main consequences of global climate change and this problem is expected to intensify in the future. Resurrection plants evolved the ability to withstand the negative impact of long periods of almost complete desiccation and to recover at rewatering. In this respect, many physiological, transcriptomic, proteomic and genomic investigations have been performed in recent years, however, few epigenetic control studies have been performed on these valuable desiccation-tolerant plants so far. RESULTS In the present study, for the first time for resurrection plants we provide evidences about the differential chromatin accessibility of Haberlea rhodopensis during desiccation stress by ATAC-seq (Assay for Transposase Accessible Chromatin with high-throughput sequencing). Based on gene similarity between species, we used the available genome of the closely related resurrection plant Dorcoceras hygrometricum to identify approximately nine hundred transposase hypersensitive sites (THSs) in H. rhodopensis. The majority of them corresponds to proximal and distal regulatory elements of different genes involved in photosynthesis, carbon metabolism, synthesis of secondary metabolites, cell signalling and transcriptional regulation, cell growth, cell wall, stomata conditioning, chaperons, oxidative stress, autophagy and others. Various types of binding motifs recognized by several families of transcription factors have been enriched from the THSs found in different stages of drought. Further, we used the previously published RNA-seq data from H. rhodopensis to evaluate the expression of transcription factors putatively interacting with the enriched motifs, and the potential correlation between the identified THS and the expression of their corresponding genes. CONCLUSIONS These results provide a blueprint for investigating the epigenetic regulation of desiccation tolerance in resurrection plant H. rhodopensis and comparative genomics between resurrection and non-resurrection species with available genome information.
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Affiliation(s)
- Petko Mladenov
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
- Agricultural Academy, 8 Dragan Tzankov Blvd, Sofia, 1164, Bulgaria.
| | - Xiaohua Wang
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing, 100093, China
| | - Zhaolin Yang
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | | | - Xin Deng
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
- China National Botanical Garden, Beijing, 100093, China.
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3
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Wang Y, Wang W, Chi X, Cheng M, Wang T, Zhan X, Bai Y, Shen C, Li X. Analysis and Identification of Genes Associated with the Desiccation Sensitivity of Panax notoginseng Seeds. PLANTS (BASEL, SWITZERLAND) 2023; 12:3881. [PMID: 38005778 PMCID: PMC10674602 DOI: 10.3390/plants12223881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023]
Abstract
Panax notoginseng (Burk.) F. H. Chen, a species of the genus Panax, radix has been traditionally used to deal with various hematological diseases and cardiovascular diseases since ancient times in East Asia. P. notoginseng produces recalcitrant seeds which are sensitive to desiccation and difficult to store for a long time. However, few data are available on the mechanism of the desiccation sensitivity of P. notoginseng seeds. To gain a comprehensive perspective of the genes associated with desiccation sensitivity, cDNA libraries from seeds under control and desiccation processes were prepared independently for Illumina sequencing. The data generated a total of 70,189,896 reads that were integrated and assembled into 55,097 unigenes with a mean length of 783 bp. In total, 12,025 differentially expressed genes (DEGs) were identified during the desiccation process. Among these DEGs, a number of central metabolism, hormonal network-, fatty acid-, and ascorbate-glutathione-related genes were included. Our data provide a comprehensive resource for identifying the genes associated with the desiccation sensitivity of P. notoginseng seeds.
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Affiliation(s)
- Yanan Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-Di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Y.W.); (X.C.); (M.C.); (T.W.); (Y.B.)
| | - Weiqing Wang
- Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China;
| | - Xiulian Chi
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-Di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Y.W.); (X.C.); (M.C.); (T.W.); (Y.B.)
| | - Meng Cheng
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-Di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Y.W.); (X.C.); (M.C.); (T.W.); (Y.B.)
| | - Tielin Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-Di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Y.W.); (X.C.); (M.C.); (T.W.); (Y.B.)
| | - Xiaori Zhan
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 310036, China; (X.Z.); (C.S.)
| | - Yunjun Bai
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-Di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Y.W.); (X.C.); (M.C.); (T.W.); (Y.B.)
| | - Chenjia Shen
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou 310036, China; (X.Z.); (C.S.)
| | - Xiaolin Li
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-Di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Y.W.); (X.C.); (M.C.); (T.W.); (Y.B.)
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4
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Simmons CR, Herman RA. Non-seed plants are emerging gene sources for agriculture and insect control proteins. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 116:23-37. [PMID: 37309832 DOI: 10.1111/tpj.16349] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/14/2023]
Abstract
The non-seed plants (e.g., charophyte algae, bryophytes, and ferns) have multiple human uses, but their contributions to agriculture and research have lagged behind seed plants. While sharing broadly conserved biology with seed plants and the major crops, non-seed plants sometimes possess alternative molecular and physiological adaptations. These adaptations may guide crop improvements. One such area is the presence of multiple classes of insecticidal proteins found in non-seed plant genomes which are either absent or widely diverged in seed plants. There are documented uses of non-seed plants, and ferns for example have been used in human diets. Among the occasional identifiable toxins or antinutritive components present in non-seed plants, none include these insecticidal proteins. Apart from these discrete risk factors which can be addressed in the safety assessment, there should be no general safety concern about sourcing genes from non-seed plant species.
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Affiliation(s)
- Carl R Simmons
- Corteva Agriscience, Trait Discovery, Johnston, Iowa, 50131, USA
| | - Rod A Herman
- Corteva Agriscience, Regulatory and Stewardship, Johnston, Iowa, 50131, USA
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5
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Kijowska-Oberc J, Dylewski Ł, Ratajczak E. Proline concentrations in seedlings of woody plants change with drought stress duration and are mediated by seed characteristics: a meta-analysis. Sci Rep 2023; 13:15157. [PMID: 37704656 PMCID: PMC10500006 DOI: 10.1038/s41598-023-40694-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 08/16/2023] [Indexed: 09/15/2023] Open
Abstract
Proline accumulation represents one of mechanisms used by plants to prevent the adverse consequences of water stress. The effects of increased proline levels in response to drought differ among species. Trees are exposed to the long-term effects of climate change. The reproductive success of species in a specific environment depends on the functional trait of tree seeds. We conducted a meta-analysis to evaluate the effects of drought stress on the proline concentrations in seedling leaf tissues of woody plant species and their relationships to drought duration, seed mass, seed category and coniferous/deciduous classification. Drought duration exhibited a nonlinear effect on proline accumulations. The drought effect on proline accumulations is greater for deciduous than for coniferous species and is higher for orthodox seed species than for recalcitrant. The seedlings of large-seeded species showed greater effect sizes than those of small-seeded species. Our results suggest that there is an optimum level at which proline accumulations under the influence of drought are the highest. A link between seed functional traits, as well as the coniferous/deciduous classification, and proline concentrations in tree seedlings during water stress were determined for the first time. Proline may help to identify high-quality seeds of trees used for reforestation.
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Affiliation(s)
- Joanna Kijowska-Oberc
- Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035, Kórnik, Poland.
| | - Łukasz Dylewski
- Department of Zoology, Poznań University of Life Sciences, Wojska Polskiego 71C, 60-625, Poznań, Poland
| | - Ewelina Ratajczak
- Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035, Kórnik, Poland
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6
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Nadal M, Carriquí M, Badel E, Cochard H, Delzon S, King A, Lamarque LJ, Flexas J, Torres-Ruiz JM. Photosynthesis, leaf hydraulic conductance and embolism dynamics in the resurrection plant Barbacenia purpurea. PHYSIOLOGIA PLANTARUM 2023; 175:e14035. [PMID: 37882305 DOI: 10.1111/ppl.14035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/17/2023] [Accepted: 09/15/2023] [Indexed: 10/27/2023]
Abstract
The main parameters determining photosynthesis are stomatal and mesophyll conductance and electron transport rate, and for hydraulic dynamics they are leaf hydraulic conductance and the spread of embolism. These parameters have scarcely been studied in desiccation-tolerant (resurrection) plants exposed to drought. Here, we characterized photosynthesis and hydraulics during desiccation and rehydration in a poikilochlorophyllous resurrection plant, Barbacenia purpurea (Velloziaceae). Gas exchange, chlorophyll fluorescence, and leaf water status were monitored along the whole dehydration-rehydration cycle. Simultaneously, embolism formation and hydraulic functioning recovery were measured at leaf level using micro-computed tomography imaging. Photosynthesis and leaf hydraulic conductance ceased at relatively high water potential (-1.28 and -1.54 MPa, respectively), whereas the onset of leaf embolism occurred after stomatal closure and photosynthesis cessation (<-1.61 MPa). This sequence of physiological processes during water stress may be associated with the need to delay dehydration, to prepare the molecular changes required in the desiccated state. Complete rehydration occurred rapidly in the mesophyll, whereas partial xylem refilling, and subsequent recovery of photosynthesis, occurred at later stages after rewatering. These results highlight the importance of stomata as safety valves to protect the vascular system from embolism, even in a plant able to fully recover after complete embolism.
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Affiliation(s)
- Miquel Nadal
- Departamento de Sistemas Agrícolas, Forestales y Medio Ambiente, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Zaragoza, Spain
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB), Institut d'Investigacions Agroambientals i d'Economia de l'Aigua (INAGEA), Palma, Illes Balears, Spain
| | - Marc Carriquí
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB), Institut d'Investigacions Agroambientals i d'Economia de l'Aigua (INAGEA), Palma, Illes Balears, Spain
- Instituto de Ciencias Forestales (ICIFOR-INIA), CSIC, Madrid, Spain
| | - Eric Badel
- Université Clermont-Auvergne, INRAE, PIAF, Clermont-Ferrand, France
| | - Hervé Cochard
- Université Clermont-Auvergne, INRAE, PIAF, Clermont-Ferrand, France
| | | | - Andrew King
- Synchrotron Source Optimisée de Lumière d'Energie Intermédiaire du LURE, L'Orme de Merisiers, France
| | | | - Jaume Flexas
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears (UIB), Institut d'Investigacions Agroambientals i d'Economia de l'Aigua (INAGEA), Palma, Illes Balears, Spain
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7
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Li X, Gao B, Wood AJ, Buitink J, Zhang D, Oliver MJ. Editorial: Desiccation tolerance in land plants: from mechanisms to evolution. FRONTIERS IN PLANT SCIENCE 2023; 14:1210946. [PMID: 37441176 PMCID: PMC10334818 DOI: 10.3389/fpls.2023.1210946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023]
Affiliation(s)
- Xiaoshuang Li
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Bei Gao
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Andrew J. Wood
- Department of Plant Biology, Southern Illinois University-Carbondale, Carbondale, IL, United States
| | - Julia Buitink
- Université d’Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France
| | - Daoyuan Zhang
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Melvin J. Oliver
- Division of Plant Sciences and Technology, Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
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8
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Ivanova A, O′Leary B, Signorelli S, Falconet D, Moyankova D, Whelan J, Djilianov D, Murcha MW. Mitochondrial activity and biogenesis during resurrection of Haberlea rhodopensis. THE NEW PHYTOLOGIST 2022; 236:943-957. [PMID: 35872573 PMCID: PMC9804507 DOI: 10.1111/nph.18396] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/11/2022] [Indexed: 06/01/2023]
Abstract
Haberlea rhodopensis is a resurrection plant that can tolerate extreme and prolonged periods of desiccation with a rapid restoration of physiological function upon rehydration. Specialized mechanisms are required to minimize cellular damage during desiccation and to maintain integrity for rapid recovery following rehydration. In this study we used respiratory activity measurements, electron microscopy, transcript, protein and blue native-PAGE analysis to investigate mitochondrial activity and biogenesis in fresh, desiccated and rehydrated detached H. rhodopensis leaves. We demonstrate that unlike photosynthesis, mitochondrial respiration was almost immediately activated to levels of fresh tissue upon rehydration. The abundance of transcripts and proteins involved in mitochondrial respiration and biogenesis were at comparable levels in fresh, desiccated and rehydrated tissues. Blue native-PAGE analysis revealed fully assembled and equally abundant OXPHOS complexes in mitochondria isolated from fresh, desiccated and rehydrated detached leaves. We observed a high abundance of alternative respiratory components which correlates with the observed high uncoupled respiration capacity in desiccated tissue. Our study reveals that during desiccation of vascular H. rhodopensis tissue, mitochondrial composition is conserved and maintained at a functional state allowing for an almost immediate activation to full capacity upon rehydration. Mitochondria-specific mechanisms were activated during desiccation which probably play a role in maintaining tolerance.
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Affiliation(s)
- Aneta Ivanova
- School of Molecular SciencesThe University of Western Australia35 Stirling Highway, CrawleyPerthWA6009Australia
- AgroBioInstituteAgricultural Academy8 Dragan Tzankov Blvd.1164SofiaBulgaria
| | - Brendan O′Leary
- School of Molecular SciencesThe University of Western Australia35 Stirling Highway, CrawleyPerthWA6009Australia
- Saskatoon Research and Development Centre, Agriculture and Agri‐Food Canada107 Science PlaceSaskatoonSKK1A 0C5Canada
| | - Santiago Signorelli
- School of Molecular SciencesThe University of Western Australia35 Stirling Highway, CrawleyPerthWA6009Australia
- Department of Plant Biology, School of AgricultureUniversidad de la RepúblicaE. Garzón 780, Sayago12900MontevideoUruguay
| | - Denis Falconet
- Cell and Plant Physiology Laboratory, CNRS, CEA, INRAE, IRIGUniversité Grenoble Alpes38054GrenobleFrance
| | - Daniela Moyankova
- AgroBioInstituteAgricultural Academy8 Dragan Tzankov Blvd.1164SofiaBulgaria
| | - James Whelan
- Department of Animal, Plant and Soil Science, School of Life Science, The ARC Centre of Excellence in Plant Energy BiologyLa Trobe UniversityBundoora3086VICAustralia
| | - Dimitar Djilianov
- AgroBioInstituteAgricultural Academy8 Dragan Tzankov Blvd.1164SofiaBulgaria
| | - Monika W. Murcha
- School of Molecular SciencesThe University of Western Australia35 Stirling Highway, CrawleyPerthWA6009Australia
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9
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Villalobos-López MA, Arroyo-Becerra A, Quintero-Jiménez A, Iturriaga G. Biotechnological Advances to Improve Abiotic Stress Tolerance in Crops. Int J Mol Sci 2022; 23:12053. [PMID: 36233352 PMCID: PMC9570234 DOI: 10.3390/ijms231912053] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/02/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
The major challenges that agriculture is facing in the twenty-first century are increasing droughts, water scarcity, flooding, poorer soils, and extreme temperatures due to climate change. However, most crops are not tolerant to extreme climatic environments. The aim in the near future, in a world with hunger and an increasing population, is to breed and/or engineer crops to tolerate abiotic stress with a higher yield. Some crop varieties display a certain degree of tolerance, which has been exploited by plant breeders to develop varieties that thrive under stress conditions. Moreover, a long list of genes involved in abiotic stress tolerance have been identified and characterized by molecular techniques and overexpressed individually in plant transformation experiments. Nevertheless, stress tolerance phenotypes are polygenetic traits, which current genomic tools are dissecting to exploit their use by accelerating genetic introgression using molecular markers or site-directed mutagenesis such as CRISPR-Cas9. In this review, we describe plant mechanisms to sense and tolerate adverse climate conditions and examine and discuss classic and new molecular tools to select and improve abiotic stress tolerance in major crops.
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Affiliation(s)
- Miguel Angel Villalobos-López
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, Ex-Hacienda San Juan Molino Carretera Estatal Km 1.5, Santa Inés-Tecuexcomac-Tepetitla 90700, Tlaxcala, Mexico
| | - Analilia Arroyo-Becerra
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, Ex-Hacienda San Juan Molino Carretera Estatal Km 1.5, Santa Inés-Tecuexcomac-Tepetitla 90700, Tlaxcala, Mexico
| | - Anareli Quintero-Jiménez
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México/I.T. Roque, Km. 8 Carretera Celaya-Juventino Rosas, Roque, Celaya 38110, Guanajato, Mexico
| | - Gabriel Iturriaga
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México/I.T. Roque, Km. 8 Carretera Celaya-Juventino Rosas, Roque, Celaya 38110, Guanajato, Mexico
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10
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Jumpa T, Beckles DM, Songsri P, Pattanagul K, Pattanagul W. Physiological and Metabolic Responses of Gac Leaf ( Momordica cochinchinensis (Lour.) Spreng.) to Salinity Stress. PLANTS (BASEL, SWITZERLAND) 2022; 11:2447. [PMID: 36235312 PMCID: PMC9572180 DOI: 10.3390/plants11192447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/03/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Gac is a carotenoid-rich, healthful tropical fruit; however, its productivity is limited by soil salinity, a growing environmental stress. This study aimed to evaluate the effects of salinity stress on key physiological traits and metabolites in 30-day-old gac seedling leaves, treated with 0, 25-, 50-, 100-, and 150-mM sodium chloride (NaCl) for four weeks to identify potential alarm, acclimatory, and exhaustion responses. Electrolyte leakage increased with increasing NaCl concentrations (p < 0.05) indicating loss of membrane permeability and conditions that lead to reactive oxygen species production. At 25 and 50 mM NaCl, superoxide dismutase (SOD) activity, starch content, and total soluble sugar increased. Chlorophyll a, and total chlorophyll increased at 25 mM NaCl but decreased at higher NaCl concentrations indicating salinity-induced thylakoid membrane degradation and chlorophyllase activity. Catalase (CAT) activity decreased (p < 0.05) at all NaCl treatments, while ascorbate peroxidase (APX) and guaiacol peroxidase (GPX) activities were highest at 150 mM NaCl. GC-MS-metabolite profiling showed that 150 mM NaCl induced the largest changes in metabolites and was thus distinct. Thirteen pathways and 7.73% of metabolites differed between the control and all the salt-treated seedlings. Salinity decreased TCA cycle intermediates, and there were less sugars for growth but more for osmoprotection, with the latter augmented by increased amino acids. Although 150 mM NaCl level decreased SOD activity, the APX and GPX enzymes were still active, and some carbohydrates and metabolites also accumulated to promote salinity resistance via multiple mechanisms.
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Affiliation(s)
- Thitiwan Jumpa
- Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Diane M. Beckles
- Department of Plant Sciences, University of California, Davis, CA 95615, USA
| | - Patcharin Songsri
- Department of Plant Sciences and Agricultural Resources, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Kunlaya Pattanagul
- Department of Statistics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Wattana Pattanagul
- Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
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11
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Preston JC, Sinha NR, Torii KU, Kellogg EA. Plant structure and function: Evolutionary origins and underlying mechanisms. PLANT PHYSIOLOGY 2022; 190:1-4. [PMID: 35775936 PMCID: PMC9434258 DOI: 10.1093/plphys/kiac320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Jill C Preston
- Department of Plant Biology, College of Agriculture and Life Sciences, The University of Vermont, Vermont 05405, USA
| | - Neelima R Sinha
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, California 95616, USA
| | - Keiko U Torii
- Molecular Biosciences, College of Natural Sciences, The University of Texas at Austin, Texas 78712, USA
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12
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Metabolite Profiling in Green Microalgae with Varying Degrees of Desiccation Tolerance. Microorganisms 2022; 10:microorganisms10050946. [PMID: 35630392 PMCID: PMC9144557 DOI: 10.3390/microorganisms10050946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 11/17/2022] Open
Abstract
Trebouxiophyceae are microalgae occupying even extreme environments such as polar regions or deserts, terrestrial or aquatic, and can occur free-living or as lichen photobionts. Yet, it is poorly understood how environmental factors shape their metabolism. Here, we report on responses to light and temperature, and metabolic adjustments to desiccation in Diplosphaera epiphytica, isolated from a lichen, and Edaphochlorella mirabilis, isolated from Tundra soil, assessed via growth and photosynthetic performance parameters. Metabolite profiling was conducted by GC–MS. A meta-analysis together with data from a terrestrial and an aquatic Chlorella vulgaris strain reflected elements of phylogenetic relationship, lifestyle, and relative desiccation tolerance of the four algal strains. For example, compatible solutes associated with desiccation tolerance were up-accumulated in D. epiphytica, but also sugars and sugar alcohols typically produced by lichen photobionts. The aquatic C. vulgaris, the most desiccation-sensitive strain, showed the greatest variation in metabolite accumulation after desiccation and rehydration, whereas the most desiccation-tolerant strain, D. epiphytica, showed the least, suggesting that it has a more efficient constitutive protection from desiccation and/or that desiccation disturbed the metabolic steady-state less than in the other three strains. The authors hope that this study will stimulate more research into desiccation tolerance mechanisms in these under-investigated microorganisms.
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Exploring the High Variability of Vegetative Desiccation Tolerance in Pteridophytes. PLANTS 2022; 11:plants11091222. [PMID: 35567223 PMCID: PMC9103120 DOI: 10.3390/plants11091222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 11/19/2022]
Abstract
In the context of plant evolution, pteridophytes, which is comprised of lycophytes and ferns, occupy an intermediate position between bryophytes and seed plants, sharing characteristics with both groups. Pteridophytes is a highly diverse group of plant species that occupy a wide range of habitats including ecosystems with extreme climatic conditions. There is a significant number of pteridophytes that can tolerate desiccation by temporarily arresting their metabolism in the dry state and reactivating it upon rehydration. Desiccation-tolerant pteridophytes exhibit a strategy that appears to be intermediate between the constitutive and inducible desiccation tolerance (DT) mechanisms observed in bryophytes and angiosperms, respectively. In this review, we first describe the incidence and anatomical diversity of desiccation-tolerant pteridophytes and discuss recent advances on the origin of DT in vascular plants. Then, we summarize the highly diverse adaptations and mechanisms exhibited by this group and describe how some of these plants could exhibit tolerance to multiple types of abiotic stress. Research on the evolution and regulation of DT in different lineages is crucial to understand how plants have adapted to extreme environments. Thus, in the current scenario of climate change, the knowledge of the whole landscape of DT strategies is of vital importance as a potential basis to improve plant abiotic stress tolerance.
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Vidović M, Battisti I, Pantelić A, Morina F, Arrigoni G, Masi A, Jovanović SV. Desiccation Tolerance in Ramonda serbica Panc.: An Integrative Transcriptomic, Proteomic, Metabolite and Photosynthetic Study. PLANTS (BASEL, SWITZERLAND) 2022; 11:1199. [PMID: 35567200 PMCID: PMC9104375 DOI: 10.3390/plants11091199] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 11/17/2022]
Abstract
The resurrection plant Ramonda serbica Panc. survives long desiccation periods and fully recovers metabolic functions within one day upon watering. This study aimed to identify key candidates and pathways involved in desiccation tolerance in R. serbica. We combined differential transcriptomics and proteomics, phenolic and sugar analysis, FTIR analysis of the cell wall polymers, and detailed analysis of the photosynthetic electron transport (PET) chain. The proteomic analysis allowed the relative quantification of 1192 different protein groups, of which 408 were differentially abundant between hydrated (HL) and desiccated leaves (DL). Almost all differentially abundant proteins related to photosynthetic processes were less abundant, while chlorophyll fluorescence measurements implied shifting from linear PET to cyclic electron transport (CET). The levels of H2O2 scavenging enzymes, ascorbate-glutathione cycle components, catalases, peroxiredoxins, Fe-, and Mn superoxide dismutase (SOD) were reduced in DL. However, six germin-like proteins (GLPs), four Cu/ZnSOD isoforms, three polyphenol oxidases, and 22 late embryogenesis abundant proteins (LEAPs; mainly LEA4 and dehydrins), were desiccation-inducible. Desiccation provoked cell wall remodeling related to GLP-derived H2O2/HO● activity and pectin demethylesterification. This comprehensive study contributes to understanding the role and regulation of the main metabolic pathways during desiccation aiming at crop drought tolerance improvement.
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Affiliation(s)
- Marija Vidović
- Institute of Molecular Genetics and Genetic Engineering, Laboratory for Plant Molecular Biology, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia;
| | - Ilaria Battisti
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy; (I.B.); (G.A.)
- Proteomics Center, University of Padova and Azienda Ospedaliera di Padova, Via G. Orus 2/B, 35129 Padova, Italy
| | - Ana Pantelić
- Institute of Molecular Genetics and Genetic Engineering, Laboratory for Plant Molecular Biology, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia;
| | - Filis Morina
- Biology Center of the Czech Academy of Sciences, Institute of Plant Molecular Biology, Department of Plant Biophysics and Biochemistry, Branišovska 31/1160, 370 05 Ceske Budejovice, Czech Republic;
| | - Giorgio Arrigoni
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy; (I.B.); (G.A.)
- Proteomics Center, University of Padova and Azienda Ospedaliera di Padova, Via G. Orus 2/B, 35129 Padova, Italy
| | - Antonio Masi
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy;
| | - Sonja Veljović Jovanović
- Institute for Multidisciplinary Research, Department of Life Science, University of Belgrade, Kneza Viseslava 1, 11000 Belgrade, Serbia
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Oung HMO, Mukhopadhyay R, Svoboda V, Charuvi D, Reich Z, Kirchhoff H. Differential response of the photosynthetic machinery to dehydration in older and younger resurrection plants. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1566-1580. [PMID: 34747457 DOI: 10.1093/jxb/erab485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
A group of vascular plants called homoiochlorophyllous resurrection plants evolved unique capabilities to protect their photosynthetic machinery against desiccation-induced damage. This study examined whether the ontogenetic status of the resurrection plant Craterostigma pumilum has an impact on how the plant responds to dehydration at the thylakoid membrane level to prepare cells for the desiccated state. Thus, younger plants (<4 months) were compared with their older (>6 months) counterparts. Ultrastructural analysis provided evidence that younger plants suppressed senescence-like programs that are realized in older plants. During dehydration, older plants degrade specific subunits of the photosynthetic apparatus such as the D1 subunit of PSII and subunits of the cytochrome b6f complex. The latter leads to a controlled down-regulation of linear electron transport. In contrast, younger plants increased photoprotective high-energy quenching mechanisms and maintained a high capability to replace damaged D1 subunits. It follows that depending on the ontogenetic state, either more degradation-based or more photoprotective mechanisms are employed during dehydration of Craterostigma pumilum.
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Affiliation(s)
- Hui Min Olivia Oung
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Roma Mukhopadhyay
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Vaclav Svoboda
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Dana Charuvi
- Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon LeZion 7505101, Israel
| | - Ziv Reich
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Helmut Kirchhoff
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
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Perera‐Castro AV, Flexas J. Desiccation tolerance in bryophytes relates to elasticity but is independent of cell wall thickness and photosynthesis. PHYSIOLOGIA PLANTARUM 2022; 174:e13661. [PMID: 35249226 PMCID: PMC9314017 DOI: 10.1111/ppl.13661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/18/2022] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
Mosses have been found outliers of the trade-off between photosynthesis and bulk elastic modulus described for vascular plants. Hence, potential trade-offs among physical features of cell walls and desiccation tolerance, water relations, and photosynthesis were assessed in bryophytes and other poikilohydric species. Long-term desiccation tolerance was quantified after variable periods of desiccation/rehydration cycles. Water relations were analyzed by pressure-volume curves. Mesophyll conductance was estimated using both CO2 curve-fitting and anatomical methods. Cell wall elasticity was the parameter that better correlated with the desiccation tolerance index for desiccation tolerant species and was antagonistic to higher absolute values of osmotic potential. Although high values of cell wall effective porosity were estimated compared with the values assumed for vascular plants, the desiccation tolerance index negatively correlated with the porosity in desiccation tolerant bryophytes. Neither cell wall thickness nor photosynthetic capacity were correlated with the desiccation tolerance index of the studied species. The existence of a potential evolutionary trade-off between cell wall thickness and desiccation tolerance is rejected. The photosynthetic capacity reported for bryophytes is independent of elasticity and desiccation tolerance. Furthermore, the role of cell wall thickness in limiting CO2 conductance would be overestimated under a scenario of high cell wall porosity for most bryophytes.
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Affiliation(s)
- Alicia V. Perera‐Castro
- Department of BiologyUniversitat de les Illes Balears, INAGEAPalma de MallorcaSpain
- Department of Botany, Ecology and Plant PhysiologyUniversidad de La Laguna, Av. Astrofísico Francisco SánchezLa LagunaSpain
| | - Jaume Flexas
- Department of BiologyUniversitat de les Illes Balears, INAGEAPalma de MallorcaSpain
- King Abdulaziz UniversityJeddahSaudi Arabia
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Matilla AJ. The Orthodox Dry Seeds Are Alive: A Clear Example of Desiccation Tolerance. PLANTS (BASEL, SWITZERLAND) 2021; 11:plants11010020. [PMID: 35009023 PMCID: PMC8747232 DOI: 10.3390/plants11010020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/07/2021] [Accepted: 12/20/2021] [Indexed: 05/17/2023]
Abstract
To survive in the dry state, orthodox seeds acquire desiccation tolerance. As maturation progresses, the seeds gradually acquire longevity, which is the total timespan during which the dry seeds remain viable. The desiccation-tolerance mechanism(s) allow seeds to remain dry without losing their ability to germinate. This adaptive trait has played a key role in the evolution of land plants. Understanding the mechanisms for seed survival after desiccation is one of the central goals still unsolved. That is, the cellular protection during dry state and cell repair during rewatering involves a not entirely known molecular network(s). Although desiccation tolerance is retained in seeds of higher plants, resurrection plants belonging to different plant lineages keep the ability to survive desiccation in vegetative tissue. Abscisic acid (ABA) is involved in desiccation tolerance through tight control of the synthesis of unstructured late embryogenesis abundant (LEA) proteins, heat shock thermostable proteins (sHSPs), and non-reducing oligosaccharides. During seed maturation, the progressive loss of water induces the formation of a so-called cellular "glass state". This glassy matrix consists of soluble sugars, which immobilize macromolecules offering protection to membranes and proteins. In this way, the secondary structure of proteins in dry viable seeds is very stable and remains preserved. ABA insensitive-3 (ABI3), highly conserved from bryophytes to Angiosperms, is essential for seed maturation and is the only transcription factor (TF) required for the acquisition of desiccation tolerance and its re-induction in germinated seeds. It is noteworthy that chlorophyll breakdown during the last step of seed maturation is controlled by ABI3. This update contains some current results directly related to the physiological, genetic, and molecular mechanisms involved in survival to desiccation in orthodox seeds. In other words, the mechanisms that facilitate that an orthodox dry seed is a living entity.
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Affiliation(s)
- Angel J Matilla
- Departamento de Biología Funcional (Área Fisiología Vegetal), Facultad de Farmacia, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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Artur MAS, Kajala K. Convergent evolution of gene regulatory networks underlying plant adaptations to dry environments. PLANT, CELL & ENVIRONMENT 2021; 44:3211-3222. [PMID: 34196969 PMCID: PMC8518057 DOI: 10.1111/pce.14143] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 06/25/2021] [Indexed: 05/21/2023]
Abstract
Plants transitioned from an aquatic to a terrestrial lifestyle during their evolution. On land, fluctuations on water availability in the environment became one of the major problems they encountered. The appearance of morpho-physiological adaptations to cope with and tolerate water loss from the cells was undeniably useful to survive on dry land. Some of these adaptations, such as carbon concentrating mechanisms (CCMs), desiccation tolerance (DT) and root impermeabilization, appeared in multiple plant lineages. Despite being crucial for evolution on land, it has been unclear how these adaptations convergently evolved in the various plant lineages. Recent advances on whole genome and transcriptome sequencing are revealing that co-option of genes and gene regulatory networks (GRNs) is a common feature underlying the convergent evolution of these adaptations. In this review, we address how the study of CCMs and DT has provided insight into convergent evolution of GRNs underlying plant adaptation to dry environments, and how these insights could be applied to currently emerging understanding of evolution of root impermeabilization through different barrier cell types. We discuss examples of co-option, conservation and innovation of genes and GRNs at the cell, tissue and organ levels revealed by recent phylogenomic (comparative genomic) and comparative transcriptomic studies.
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Affiliation(s)
- Mariana A. S. Artur
- Laboratory of Plant PhysiologyWageningen UniversityWageningenThe Netherlands
- Plant Ecophysiology, Institute of Environmental BiologyUtrecht UniversityUtrechtThe Netherlands
| | - Kaisa Kajala
- Plant Ecophysiology, Institute of Environmental BiologyUtrecht UniversityUtrechtThe Netherlands
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Gechev T, Lyall R, Petrov V, Bartels D. Systems biology of resurrection plants. Cell Mol Life Sci 2021; 78:6365-6394. [PMID: 34390381 PMCID: PMC8558194 DOI: 10.1007/s00018-021-03913-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/08/2021] [Accepted: 08/03/2021] [Indexed: 12/16/2022]
Abstract
Plant species that exhibit vegetative desiccation tolerance can survive extreme desiccation for months and resume normal physiological activities upon re-watering. Here we survey the recent knowledge gathered from the sequenced genomes of angiosperm and non-angiosperm desiccation-tolerant plants (resurrection plants) and highlight some distinct genes and gene families that are central to the desiccation response. Furthermore, we review the vast amount of data accumulated from analyses of transcriptomes and metabolomes of resurrection species exposed to desiccation and subsequent rehydration, which allows us to build a systems biology view on the molecular and genetic mechanisms of desiccation tolerance in plants.
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Affiliation(s)
- Tsanko Gechev
- Center of Plant Systems Biology and Biotechnology, 139 Ruski Blvd., Plovdiv, 4000, Bulgaria.
- Department of Plant Physiology and Molecular Biology, University of Plovdiv, 24 Tsar Assen Str., Plovdiv, 4000, Bulgaria.
| | - Rafe Lyall
- Center of Plant Systems Biology and Biotechnology, 139 Ruski Blvd., Plovdiv, 4000, Bulgaria
| | - Veselin Petrov
- Center of Plant Systems Biology and Biotechnology, 139 Ruski Blvd., Plovdiv, 4000, Bulgaria
- Department of Plant Physiology, Biochemistry and Genetics, Agricultural University - Plovdiv, 12, Mendeleev Str, Plovdiv, 4000, Bulgaria
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Passon M, Weber F, Jung NU, Bartels D. Profiling of phenolic compounds in desiccation-tolerant and non-desiccation-tolerant Linderniaceae. PHYTOCHEMICAL ANALYSIS : PCA 2021; 32:521-529. [PMID: 33034094 DOI: 10.1002/pca.3000] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 07/13/2020] [Accepted: 09/02/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Craterostigma plantagineum and Lindernia brevidens are resurrection plants, so these plants can tolerate desiccation of their vegetative tissues. Different components and mechanisms contribute to desiccation tolerance and secondary plant metabolites, like phenolic compounds, may play a role during these processes. OBJECTIVES Secondary plant metabolites of the two resurrection plants, C. plantagineum and L. brevidens as well as the closely related desiccation sensitive species, L. subracemosa, were investigated regarding the polyphenol profile. MATERIAL AND METHODS Secondary plant compounds were extracted with acidified methanol and analysed with ultra-high-performance liquid chromatography electrospray ionisation mass spectrometry (UHPLC-ESI-MS). Phenolic compounds were identified by comparing of ultraviolet (UV) and MSn -spectra with published data. All compounds were quantified as verbascoside equivalents by external calibration at the compound specific wavelength. RESULTS In total, eight compounds that belong to the subclass of phenylethanoid glycosides and one flavone, luteolin hexoside pentoside, were identified. Two of these compounds exhibited a fragmentation pattern, which is closely related to phenylethanoid glycosides. The predominantly synthesised phenylethanoid in all of the three plant species and in every stage of hydration was verbascoside. The total content of phenolic compounds during the three stages of hydration, untreated, desiccated, and rehydrated revealed differences especially between C. plantagineum and L. brevidens as the latter one lost almost all phenolic compounds during rehydration. CONCLUSION The amount of verbascoside correlates with the degree of desiccation tolerance and verbascoside might play a role in the protective system in acting as an antioxidant.
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Affiliation(s)
- Maike Passon
- Institute of Nutritional and Food Sciences, Molecular Food Technology, University of Bonn, Bonn, Germany
| | - Fabian Weber
- Institute of Nutritional and Food Sciences, Molecular Food Technology, University of Bonn, Bonn, Germany
| | - Niklas Udo Jung
- Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Bonn, Germany
- Present address Institute for Plant Cell Biology and Biotechnology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Dorothea Bartels
- Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Bonn, Germany
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21
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Georgieva K, Mihailova G, Gigova L, Dagnon S, Simova-Stoilova L, Velitchkova M. The role of antioxidant defense in freezing tolerance of resurrection plant Haberlea rhodopensis. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:1119-1133. [PMID: 34108826 PMCID: PMC8140058 DOI: 10.1007/s12298-021-00998-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/19/2021] [Accepted: 04/20/2021] [Indexed: 05/24/2023]
Abstract
UNLABELLED Haberlea rhodopensis Friv. is unique with its ability to survive two extreme environmental stresses-desiccation to air-dry state and subzero temperatures. In contrast to desiccation tolerance, the mechanisms of freezing tolerance of resurrection plants are scarcely investigated. In the present study, the role of antioxidant defense in the acquisition of cold acclimation and freezing tolerance in this resurrection plant was investigated comparing the results of two sets of experiments-short term freezing stress after cold acclimation in controlled conditions and long term freezing stress as a part of seasonal temperature fluctuations in an outdoor ex situ experiment. Significant enhancement in flavonoids and anthocyanin content was observed only as a result of freezing-induced desiccation. The total amount of polyphenols increased upon cold acclimation and it was similar to the control in post freezing stress and freezing-induced desiccation. The main role of phenylethanoid glucoside, myconoside and hispidulin 8-C-(2-O-syringoyl-b-glucopyranoside) in cold acclimation and freezing tolerance was elucidated. The treatments under controlled conditions in a growth chamber showed enhancement in antioxidant enzymes activity upon cold acclimation but it declined after subsequent exposure to -10 °C. Although it varied under ex situ conditions, the activity of antioxidant enzymes was high, indicating their important role in overcoming oxidative stress under all treatments. In addition, the activity of specific isoenzymes was upregulated as compared to the control plants, which could be more useful for stress counteraction compared to changes in the total enzyme activity, due to the action of these isoforms in the specific cellular compartments. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-00998-0.
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Affiliation(s)
- Katya Georgieva
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria
| | - Gergana Mihailova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria
| | - Liliana Gigova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria
| | - Soleya Dagnon
- Department of Organic Chemistry, Plovdiv University Paisii Hilendarski, “Tzar Assen II” 24, 4000 Plovdiv, Bulgaria
| | - Lyudmila Simova-Stoilova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Akad. G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria
| | - Maya Velitchkova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria
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Gasulla F, del Campo EM, Casano LM, Guéra A. Advances in Understanding of Desiccation Tolerance of Lichens and Lichen-Forming Algae. PLANTS (BASEL, SWITZERLAND) 2021; 10:807. [PMID: 33923980 PMCID: PMC8073698 DOI: 10.3390/plants10040807] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 12/11/2022]
Abstract
Lichens are symbiotic associations (holobionts) established between fungi (mycobionts) and certain groups of cyanobacteria or unicellular green algae (photobionts). This symbiotic association has been essential in the colonization of terrestrial dry habitats. Lichens possess key mechanisms involved in desiccation tolerance (DT) that are constitutively present such as high amounts of polyols, LEA proteins, HSPs, a powerful antioxidant system, thylakoidal oligogalactolipids, etc. This strategy allows them to be always ready to survive drastic changes in their water content. However, several studies indicate that at least some protective mechanisms require a minimal time to be induced, such as the induction of the antioxidant system, the activation of non-photochemical quenching including the de-epoxidation of violaxanthin to zeaxanthin, lipid membrane remodeling, changes in the proportions of polyols, ultrastructural changes, marked polysaccharide remodeling of the cell wall, etc. Although DT in lichens is achieved mainly through constitutive mechanisms, the induction of protection mechanisms might allow them to face desiccation stress in a better condition. The proportion and relevance of constitutive and inducible DT mechanisms seem to be related to the ecology at which lichens are adapted to.
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Affiliation(s)
- Francisco Gasulla
- Department of Life Sciences, Universidad de Alcalá, Alcalá de Henares, 28802 Madrid, Spain; (E.M.d.C.); (L.M.C.)
| | | | | | - Alfredo Guéra
- Department of Life Sciences, Universidad de Alcalá, Alcalá de Henares, 28802 Madrid, Spain; (E.M.d.C.); (L.M.C.)
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Neeragunda Shivaraj Y, Plancot B, Ramdani Y, Gügi B, Kambalagere Y, Jogaiah S, Driouich A, Ramasandra Govind S. Physiological and biochemical responses involved in vegetative desiccation tolerance of resurrection plant Selaginella brachystachya. 3 Biotech 2021; 11:135. [PMID: 33680700 PMCID: PMC7897589 DOI: 10.1007/s13205-021-02667-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/27/2021] [Indexed: 12/30/2022] Open
Abstract
The vegetative desiccation tolerance of Selaginella brachystachya has been evaluated for its ability to revive from a desiccation (air dry) state and start normal functioning when rehydrated. In this study, S. brachystachya was identified by DNA barcoding. Experiments were conducted using the detached hydrated, desiccated and rehydrated fronds under laboratory conditions to understand the mechanism of revival upon the water availability. Scanning Electron Microscope images during desiccation showed closed stomata and inside curled leaves. Chlorophyll concentration decreased by 1.1 fold in desiccated state and recovered completely upon rehydration. However, the total carotenoid content decreased 4.5 fold while the anthocyanin concentration increased 5.98 fold and the CO2 exchange rate became negative during desiccation. Lipid peroxidation and superoxide radical production were enhanced during desiccation by 68.32 and 73.4%, respectively. Relative electrolyte leakage was found to be minimal during desiccation. Activities of antioxidant enzymes, namely peroxidase (158.33%), glutathione reductase (107.70%), catalase (92.95%) and superoxide dismutase (184.70%) were found to be higher in the desiccated state. The proline concentration increased by 1.4 fold, starch concentration decreased 3.9 fold and sucrose content increased 2.8 fold during desiccation. Upon rehydration, S. brachystachya recovered its original morphology, physiological and biochemical functions. Our results demonstrate that S. brachystachya minimizes desiccation stress through a range of morphological, physiological and biochemical mechanisms. These results provide useful insights into desiccation tolerance mechanisms for potential utilization in enhancing stress tolerance in crop plants. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02667-1.
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Affiliation(s)
- Yathisha Neeragunda Shivaraj
- Department of Studies and Research in Environmental Science, Kuvempu University, Shankaraghatta, Shimoga 577451 India
- Department of Studies and Research in Biotechnology and Microbiology, Tumkur University, Tumakuru, 57210 India
| | - Barbara Plancot
- Laboratoire de Glycobiologie Et Matrice Extracellulaire Végétale, Université de Rouen, 76000 Rouen, Normandie France
- Fédération de Recherche “Normandie-Végétal”-FED 4277, 76000 Rouen, France
| | - Yasmina Ramdani
- Laboratoire de Glycobiologie Et Matrice Extracellulaire Végétale, Université de Rouen, 76000 Rouen, Normandie France
- Fédération de Recherche “Normandie-Végétal”-FED 4277, 76000 Rouen, France
| | - Bruno Gügi
- Laboratoire de Glycobiologie Et Matrice Extracellulaire Végétale, Université de Rouen, 76000 Rouen, Normandie France
- Fédération de Recherche “Normandie-Végétal”-FED 4277, 76000 Rouen, France
| | - Yogendra Kambalagere
- Department of Studies and Research in Environmental Science, Kuvempu University, Shankaraghatta, Shimoga 577451 India
| | - Sudisha Jogaiah
- Department of Studies and Research in Biotechnology and Microbiology, Karnataka University, Dharwad, India
| | - Azeddine Driouich
- Laboratoire de Glycobiologie Et Matrice Extracellulaire Végétale, Université de Rouen, 76000 Rouen, Normandie France
- Fédération de Recherche “Normandie-Végétal”-FED 4277, 76000 Rouen, France
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Xia L, Xiaodong M, Yunhe C, Junxiang L, Junzhu Z, Feifei Z, Zhenyuan S, Lei H. Transcriptomic and metabolomic insights into the adaptive response of Salix viminalis to phenanthrene. CHEMOSPHERE 2021; 262:127573. [PMID: 32745791 DOI: 10.1016/j.chemosphere.2020.127573] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 05/28/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widespread, persistent environmental pollutants. They exert toxic effects at different developmental stages of plants. Plant defense mechanisms against PAHs are poorly understood. To this end, transcriptomics and widely targeted metabolomic sequencing were used to study the changes in gene expression and metabolites that occur in the roots of Salix viminalis subjected to phenanthrene stress. Significant variations in genes and metabolites were observed between treatment groups and the control group. Thirteen amino acids and key genes involved in their biosynthesis were upregulated exposed to phenanthrene. Cysteine biosynthesis was upregulated. Sucrose, inositol galactoside, and mellidiose were the main carbohydrates that were largely accumulated. Glutathione biosynthesis was enhanced in order to scavenge reactive oxygen species and detoxify the phenanthrene. Glucosinolate and flavonoid biosynthesis were upregulated. The production of pinocembrin, apigenin, and epigallocatechin increased, which may play a role in antioxidation to resist phenanthrene stress. In addition, levels of six amino acids and N,N'-(p-coumaroyl)-cinnamoyl-caffeoyl-spermidine were significantly increased, which may have helped protect the plant against phenanthrene stress. These results demonstrated that S. viminalis had a positive defense strategy in response to phenanthrene challenge. Subsequent defense-related reactions may have also occurred within 24 h of phenanthrene exposure. The findings of the present study would be useful in elucidating the molecular mechanisms regulating plant responses to PAH challenges and would help guide crop and plant breeders in enhancing PAH resistance.
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Affiliation(s)
- Li Xia
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China; College of Agriculture and Bioengineering (Peony Institute), Heze University, Heze, 274000, Shandong, China
| | - Ma Xiaodong
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Cheng Yunhe
- Beijing Academy of Forestry and Pomology Sciences, Beijing, 100093, China
| | - Liu Junxiang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Zou Junzhu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Zhai Feifei
- School of Architectural and Artistic Design, Henan Polytechnic University, Jiaozuo, Henan, 454000, PR China
| | - Sun Zhenyuan
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Han Lei
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China.
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Smolikova G, Leonova T, Vashurina N, Frolov A, Medvedev S. Desiccation Tolerance as the Basis of Long-Term Seed Viability. Int J Mol Sci 2020; 22:E101. [PMID: 33374189 PMCID: PMC7795748 DOI: 10.3390/ijms22010101] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 12/15/2022] Open
Abstract
Desiccation tolerance appeared as the key adaptation feature of photoautotrophic organisms for survival in terrestrial habitats. During the further evolution, vascular plants developed complex anatomy structures and molecular mechanisms to maintain the hydrated state of cell environment and sustain dehydration. However, the role of the genes encoding the mechanisms behind this adaptive feature of terrestrial plants changed with their evolution. Thus, in higher vascular plants it is restricted to protection of spores, seeds and pollen from dehydration, whereas the mature vegetative stages became sensitive to desiccation. During maturation, orthodox seeds lose up to 95% of water and successfully enter dormancy. This feature allows seeds maintaining their viability even under strongly fluctuating environmental conditions. The mechanisms behind the desiccation tolerance are activated at the late seed maturation stage and are associated with the accumulation of late embryogenesis abundant (LEA) proteins, small heat shock proteins (sHSP), non-reducing oligosaccharides, and antioxidants of different chemical nature. The main regulators of maturation and desiccation tolerance are abscisic acid and protein DOG1, which control the network of transcription factors, represented by LEC1, LEC2, FUS3, ABI3, ABI5, AGL67, PLATZ1, PLATZ2. This network is complemented by epigenetic regulation of gene expression via methylation of DNA, post-translational modifications of histones and chromatin remodeling. These fine regulatory mechanisms allow orthodox seeds maintaining desiccation tolerance during the whole period of germination up to the stage of radicle protrusion. This time point, in which seeds lose desiccation tolerance, is critical for the whole process of seed development.
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Affiliation(s)
- Galina Smolikova
- Department of Plant Physiology and Biochemistry, St. Petersburg State University, 199034 St. Petersburg, Russia;
| | - Tatiana Leonova
- Department of Biochemistry, St. Petersburg State University, 199004 St. Petersburg, Russia; (T.L.); (N.V.); (A.F.)
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
| | - Natalia Vashurina
- Department of Biochemistry, St. Petersburg State University, 199004 St. Petersburg, Russia; (T.L.); (N.V.); (A.F.)
| | - Andrej Frolov
- Department of Biochemistry, St. Petersburg State University, 199004 St. Petersburg, Russia; (T.L.); (N.V.); (A.F.)
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
| | - Sergei Medvedev
- Department of Plant Physiology and Biochemistry, St. Petersburg State University, 199034 St. Petersburg, Russia;
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Agati G, Brunetti C, Fini A, Gori A, Guidi L, Landi M, Sebastiani F, Tattini M. Are Flavonoids Effective Antioxidants in Plants? Twenty Years of Our Investigation. Antioxidants (Basel) 2020; 9:E1098. [PMID: 33182252 PMCID: PMC7695271 DOI: 10.3390/antiox9111098] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022] Open
Abstract
Whether flavonoids play significant antioxidant roles in plants challenged by photooxidative stress of different origin has been largely debated over the last few decades. A critical review of the pertinent literature and our experimentation as well, based on a free-of-scale approach, support an important antioxidant function served by flavonoids in plants exposed to a wide range of environmental stressors, the significance of which increases with the severity of stress. On the other side, some questions need conclusive answers when the putative antioxidant functions of plant flavonoids are examined at the level of both the whole-cell and cellular organelles. This partly depends upon a conclusive, robust, and unbiased definition of "a plant antioxidant", which is still missing, and the need of considering the subcellular re-organization that occurs in plant cells in response to severe stress conditions. This likely makes our deterministic-based approach unsuitable to unveil the relevance of flavonoids as antioxidants in extremely complex biological systems, such as a plant cell exposed to an ever-changing stressful environment. This still poses open questions about how to measure the occurred antioxidant action of flavonoids. Our reasoning also evidences the need of contemporarily evaluating the changes in key primary and secondary components of the antioxidant defense network imposed by stress events of increasing severity to properly estimate the relevance of the antioxidant functions of flavonoids in an in planta situation. In turn, this calls for an in-depth analysis of the sub-cellular distribution of primary and secondary antioxidants to solve this still intricate matter.
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Affiliation(s)
- Giovanni Agati
- Institute of Applied Physics ‘Carrara’, National Research Council of Italy (CNR), Via Madonna del Piano 10, Sesto F.no, I-50019 Florence, Italy;
| | - Cecilia Brunetti
- Institute for Sustainable Plant Protection, National Research Council of Italy (CNR), Via Madonna del Piano 10, I-50019, Sesto F.no, Florence, Italy; (C.B.); (F.S.)
| | - Alessio Fini
- Department of Agriculural and Environmental Sciences - Production, Landscape, Agroenergy, University of Milan, Via Celoria 2, I-20133 Milan, Italy;
| | - Antonella Gori
- Department of Agriculture, Food, Environment and Forestry, University of Florence, Viale delle Idee 30, Sesto F.no, I-50019 Florence, Italy;
| | - Lucia Guidi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, I-56124 Pisa, Italy; (L.G.); (M.L.)
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, I-56124 Pisa, Italy; (L.G.); (M.L.)
| | - Federico Sebastiani
- Institute for Sustainable Plant Protection, National Research Council of Italy (CNR), Via Madonna del Piano 10, I-50019, Sesto F.no, Florence, Italy; (C.B.); (F.S.)
| | - Massimiliano Tattini
- Institute for Sustainable Plant Protection, National Research Council of Italy (CNR), Via Madonna del Piano 10, I-50019, Sesto F.no, Florence, Italy; (C.B.); (F.S.)
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Aigner S, Glaser K, Arc E, Holzinger A, Schletter M, Karsten U, Kranner I. Adaptation to Aquatic and Terrestrial Environments in Chlorella vulgaris (Chlorophyta). Front Microbiol 2020; 11:585836. [PMID: 33178169 PMCID: PMC7593248 DOI: 10.3389/fmicb.2020.585836] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 09/14/2020] [Indexed: 11/20/2022] Open
Abstract
The globally distributed green microalga Chlorella vulgaris (Chlorophyta) colonizes aquatic and terrestrial habitats, but the molecular mechanisms underpinning survival in these two contrasting environments are far from understood. Here, we compared the authentic strain of C. vulgaris from an aquatic habitat with a strain from a terrestrial high alpine habitat previously determined as Chlorella mirabilis. Molecular phylogeny of SSU rDNA (823 bp) showed that the two strains differed by one nucleotide only. Sequencing of the ITS2 region confirmed that both strains belong to the same species, but to distinct ribotypes. Therefore, the terrestrial strain was re-assessed as C. vulgaris. To study the response to environmental conditions experienced on land, we assessed the effects of irradiance and temperature on growth, of temperature on photosynthesis and respiration, and of desiccation and rehydration on photosynthetic performance. In contrast to the aquatic strain, the terrestrial strain tolerated higher temperatures and light conditions, had a higher photosynthesis-to-respiration ratio at 25°C, still grew at 30°C and was able to fully recover photosynthetic performance after desiccation at 84% relative humidity. The two strains differed most in their response to the dehydration/rehydration treatment, which was further investigated by untargeted GC–MS-based metabolite profiling to gain insights into metabolic traits differentiating the two strains. The two strains differed in their allocation of carbon and nitrogen into their primary metabolites. Overall, the terrestrial strain had higher contents of readily available nitrogen-based metabolites, especially amino acids and the polyamine putrescine. Dehydration and rehydration led to differential regulation of the amino acid metabolism, the tricarboxylic acid cycle and sucrose metabolism. The data are discussed with a view to differences in phenotypic plasticity of the two strains, and we suggest that the two genetically almost identical C. vulgaris strains are attractive models to study mechanisms that protect from abiotic stress factors, which are more frequent in terrestrial than aquatic habitats, such as desiccation and irradiation.
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Affiliation(s)
- Siegfried Aigner
- Department of Botany, University of Innsbruck, Innsbruck, Austria
| | - Karin Glaser
- Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Erwann Arc
- Department of Botany, University of Innsbruck, Innsbruck, Austria
| | | | | | - Ulf Karsten
- Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Ilse Kranner
- Department of Botany, University of Innsbruck, Innsbruck, Austria
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Alejo-Jacuinde G, González-Morales SI, Oropeza-Aburto A, Simpson J, Herrera-Estrella L. Comparative transcriptome analysis suggests convergent evolution of desiccation tolerance in Selaginella species. BMC PLANT BIOLOGY 2020; 20:468. [PMID: 33046015 PMCID: PMC7549206 DOI: 10.1186/s12870-020-02638-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 09/04/2020] [Indexed: 05/04/2023]
Abstract
BACKGROUND Desiccation tolerant Selaginella species evolved to survive extreme environmental conditions. Studies to determine the mechanisms involved in the acquisition of desiccation tolerance (DT) have focused on only a few Selaginella species. Due to the large diversity in morphology and the wide range of responses to desiccation within the genus, the understanding of the molecular basis of DT in Selaginella species is still limited. RESULTS Here we present a reference transcriptome for the desiccation tolerant species S. sellowii and the desiccation sensitive species S. denticulata. The analysis also included transcriptome data for the well-studied S. lepidophylla (desiccation tolerant), in order to identify DT mechanisms that are independent of morphological adaptations. We used a comparative approach to discriminate between DT responses and the common water loss response in Selaginella species. Predicted proteomes show strong homology, but most of the desiccation responsive genes differ between species. Despite such differences, functional analysis revealed that tolerant species with different morphologies employ similar mechanisms to survive desiccation. Significant functions involved in DT and shared by both tolerant species included induction of antioxidant systems, amino acid and secondary metabolism, whereas species-specific responses included cell wall modification and carbohydrate metabolism. CONCLUSIONS Reference transcriptomes generated in this work represent a valuable resource to study Selaginella biology and plant evolution in relation to DT. Our results provide evidence of convergent evolution of S. sellowii and S. lepidophylla due to the different gene sets that underwent selection to acquire DT.
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Affiliation(s)
- Gerardo Alejo-Jacuinde
- National Laboratory of Genomics for Biodiversity (Langebio), Unit of Advanced Genomics, CINVESTAV, 36824 Irapuato, Guanajuato Mexico
- Department of Genetic Engineering, CINVESTAV, 36824 Irapuato, Guanajuato Mexico
| | | | - Araceli Oropeza-Aburto
- National Laboratory of Genomics for Biodiversity (Langebio), Unit of Advanced Genomics, CINVESTAV, 36824 Irapuato, Guanajuato Mexico
| | - June Simpson
- Department of Genetic Engineering, CINVESTAV, 36824 Irapuato, Guanajuato Mexico
| | - Luis Herrera-Estrella
- National Laboratory of Genomics for Biodiversity (Langebio), Unit of Advanced Genomics, CINVESTAV, 36824 Irapuato, Guanajuato Mexico
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, TX 79409 USA
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Vidović M, Franchin C, Morina F, Veljović-Jovanović S, Masi A, Arrigoni G. Efficient protein extraction for shotgun proteomics from hydrated and desiccated leaves of resurrection Ramonda serbica plants. Anal Bioanal Chem 2020; 412:8299-8312. [PMID: 33037906 DOI: 10.1007/s00216-020-02965-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 08/31/2020] [Accepted: 09/22/2020] [Indexed: 11/30/2022]
Abstract
Resurrection plant Ramonda serbica is a suitable model to investigate vegetative desiccation tolerance. However, the detailed study of these mechanisms at the protein level is hampered by the severe tissue water loss, high amount of phenolics and polysaccharide, and possible protein modifications and aggregations during the extraction and purification steps. When applied to R. serbica leaves, widely used protein extraction protocols containing polyvinylpolypyrrolidone and ascorbate, as well as the phenol/SDS/buffer-based protocol recommended for recalcitrant plant tissues failed to eliminate persistent contamination and ensure high protein quality. Here we compared three protein extraction approaches aiming to establish the optimal one for both hydrated and desiccated R. serbica leaves. To evaluate the efficacy of these protocols by shotgun proteomics, we also created the first R. serbica annotated transcriptome database, available at http://www.biomed.unipd.it/filearrigoni/Trinity_Sample_RT2.fasta . The detergent-free phenol-based extraction combined with dodecyl-β-D-maltoside-assisted extraction enabled high-yield and high-purity protein extracts. The phenol-based protocol improved the protein-band resolution, band number, and intensity upon electrophoresis, and increased the protein yield and the number of identified peptides and protein groups by LC-MS/MS. Additionally, dodecyl-β-D-maltoside enabled solubilisation and identification of more membrane-associated proteins. The presented study paves the way for investigating the desiccation tolerance in R. serbica, and we recommend this protocol for similar recalcitrant plant material.
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Affiliation(s)
- Marija Vidović
- Institute for Multidisciplinary Research, Department of Life Science, University of Belgrade, Kneza Višeslava 1, Belgrade, 11030, Serbia.
- Institute of Molecular Genetics and Genetic Engineering, Laboratory for Plant Molecular Biology, University of Belgrade, Vojvode Stepe 444a, Belgrade, 11042, Serbia.
| | - Cinzia Franchin
- Department of Biomedical Sciences, University of Padova, Via U. Bassi 58/B, 35131, Padua, Italy
- Proteomics Center University of Padova and Azienda Ospedaliera di Padova, Via G. Orus 2/B, 35129, Padua, Italy
| | - Filis Morina
- Institute for Multidisciplinary Research, Department of Life Science, University of Belgrade, Kneza Višeslava 1, Belgrade, 11030, Serbia
- Department of Plant Biophysics & Biochemistry, Biology Centre, Institute of Plant Molecular Biology, Czech Academy of Sciences, Branišovská 31/1160, 37005, České Budějovice, Czech Republic
| | - Sonja Veljović-Jovanović
- Institute for Multidisciplinary Research, Department of Life Science, University of Belgrade, Kneza Višeslava 1, Belgrade, 11030, Serbia
| | - Antonio Masi
- DAFNAE - University of Padova, Viale Università 16 - AGRIPOLIS, I-35020, Legnaro, PD, Italy
| | - Giorgio Arrigoni
- Department of Biomedical Sciences, University of Padova, Via U. Bassi 58/B, 35131, Padua, Italy.
- Proteomics Center University of Padova and Azienda Ospedaliera di Padova, Via G. Orus 2/B, 35129, Padua, Italy.
- CRIBI Biotechnology Center, University of Padova, viale G. Colombo 3, 35131, Padua, Italy.
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Boulc'h PN, Caullireau E, Faucher E, Gouerou M, Guérin A, Miray R, Couée I. Abiotic stress signalling in extremophile land plants. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5771-5785. [PMID: 32687568 DOI: 10.1093/jxb/eraa336] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Plant life relies on complex arrays of environmental stress sensing and signalling mechanisms. Extremophile plants develop and grow in harsh environments with extremes of cold, heat, drought, desiccation, or salinity, which have resulted in original adaptations. In accordance with their polyphyletic origins, extremophile plants likely possess core mechanisms of plant abiotic stress signalling. However, novel properties or regulations may have emerged in the context of extremophile adaptations. Comparative omics of extremophile genetic models, such as Arabidopsis lyrata, Craterostigma plantagineum, Eutrema salsugineum, and Physcomitrella patens, reveal diverse strategies of sensing and signalling that lead to a general improvement in abiotic stress responses. Current research points to putative differences of sensing and emphasizes significant modifications of regulatory mechanisms, at the level of secondary messengers (Ca2+, phospholipids, reactive oxygen species), signal transduction (intracellular sensors, protein kinases, transcription factors, ubiquitin-mediated proteolysis) or signalling crosstalk. Involvement of hormone signalling, especially ABA signalling, cell homeostasis surveillance, and epigenetic mechanisms, also shows that large-scale gene regulation, whole-plant integration, and probably stress memory are important features of adaptation to extreme conditions. This evolutionary and functional plasticity of signalling systems in extremophile plants may have important implications for plant biotechnology, crop improvement, and ecological risk assessment under conditions of climate change.
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Affiliation(s)
- Pierre-Nicolas Boulc'h
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Emma Caullireau
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Elvina Faucher
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Maverick Gouerou
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
- University of Rennes 1, CNRS, ECOBIO (Ecosystems-Biodiversity-Evolution) - UMR, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Amandine Guérin
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Romane Miray
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Ivan Couée
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
- University of Rennes 1, CNRS, ECOBIO (Ecosystems-Biodiversity-Evolution) - UMR, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
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Yathisha NS, Barbara P, Gügi B, Yogendra K, Jogaiah S, Azeddine D, Sharatchandra RG. Vegetative desiccation tolerance in Eragrostiella brachyphylla: biochemical and physiological responses. Heliyon 2020; 6:e04948. [PMID: 32995628 PMCID: PMC7509185 DOI: 10.1016/j.heliyon.2020.e04948] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/24/2020] [Accepted: 09/11/2020] [Indexed: 11/22/2022] Open
Abstract
Eragrostiella brachyphylla is an angiosperm desiccation-tolerant resurrection plant, which can survive during desiccation in the air-dry state and recover completely on availability of water. The present study was conducted to understand the vegetative desiccation tolerance of Eragrostiella brachyphylla by evaluating its ability to recover the physiological, biochemical and morphological functions post desiccation. In order to understand the responses of Eragrostiella brachyphylla to desiccation and subsequent rehydration experiments were conducted in the hydrated state (HS), desiccated state (DS) and rehydrated state (RS). Scanning electron microscopy revealed significant changes between the three stages in the internal ultra-structures of leaves and stems. Compared to the other states, photosynthetic parameters such as chlorophyll a, chlorophyll b, total chlorophylland total carotenoid contents decreased significantly in the desiccated state. Superoxide radical (O2•-) content also increased, resulting in an oxidative burst during desiccation. Consequently, antioxidant enzymes such as catalase (CAT) superoxide dismutase (SOD) peroxidase (APX) and glutathione reductase (GR) activities were found to be significantly elevated in the desiccated state to avoid oxidative damage. Increased malondialdehyde (MDA) content and relative electrolyte leakage (REL) during desiccation provide evidence for membrane damage and loss of cell-wall integrity. During desiccation, the contents of osmolytes represented by sucrose and proline were found to increase to maintain cell structure integrity. After rehydration, all physiological, biochemical and morphological properties remain unchanged or slightly changed when compared to the hydrated state. Hence, we believe that these unique adaptations contribute to the remarkable desiccation-tolerance property of this plant.
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Affiliation(s)
- Neeragunda Shivaraj Yathisha
- Department of Studies and Research in Biotechnology and Microbiology, Tumkur University, Tumakuru, 57210, India
- Department of Studies and Research in Environmental Science, Kuvempu University, Shankaraghatta, Shimoga, 577451, India
| | - Plancot Barbara
- Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, Normandie University, University of Rouen, 76000, Rouen, France
- Fédération de Recherche “Normandie-Végétal”-FED 4277, 76000, Rouen, France
| | - Bruno Gügi
- Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, Normandie University, University of Rouen, 76000, Rouen, France
- Fédération de Recherche “Normandie-Végétal”-FED 4277, 76000, Rouen, France
| | - Kambalagere Yogendra
- Department of Studies and Research in Environmental Science, Kuvempu University, Shankaraghatta, Shimoga, 577451, India
| | - Sudisha Jogaiah
- Department of Studies and Research in Biotechnology and Microbiology, Karnataka University, Dharwad, India
| | - Driouich Azeddine
- Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale, Normandie University, University of Rouen, 76000, Rouen, France
- Fédération de Recherche “Normandie-Végétal”-FED 4277, 76000, Rouen, France
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Shared up-regulation and contrasting down-regulation of gene expression distinguish desiccation-tolerant from intolerant green algae. Proc Natl Acad Sci U S A 2020; 117:17438-17445. [PMID: 32636259 PMCID: PMC7382218 DOI: 10.1073/pnas.1906904117] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Among green plants, desiccation tolerance is common in seeds and spores but rare in leaves and other vegetative green tissues. Over the last two decades, genes have been identified whose expression is induced by desiccation in diverse, desiccation-tolerant (DT) taxa, including, e.g., late embryogenesis abundant proteins (LEA) and reactive oxygen species scavengers. This up-regulation is observed in DT resurrection plants, mosses, and green algae most closely related to these Embryophytes. Here we test whether this same suite of protective genes is up-regulated during desiccation in even more distantly related DT green algae, and, importantly, whether that up-regulation is unique to DT algae or also occurs in a desiccation-intolerant relative. We used three closely related aquatic and desert-derived green microalgae in the family Scenedesmaceae and capitalized on extraordinary desiccation tolerance in two of the species, contrasting with desiccation intolerance in the third. We found that during desiccation, all three species increased expression of common protective genes. The feature distinguishing gene expression in DT algae, however, was extensive down-regulation of gene expression associated with diverse metabolic processes during the desiccation time course, suggesting a switch from active growth to energy-saving metabolism. This widespread downshift did not occur in the desiccation-intolerant taxon. These results show that desiccation-induced up-regulation of expression of protective genes may be necessary but is not sufficient to confer desiccation tolerance. The data also suggest that desiccation tolerance may require induced protective mechanisms operating in concert with massive down-regulation of gene expression controlling numerous other aspects of metabolism.
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33
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Li X, Fang C, Zhao JP, Zhou XY, Ni Z, Niu DK. Desiccation does not drastically increase the accessibility of exogenous DNA to nuclear genomes: evidence from the frequency of endosymbiotic DNA transfer. BMC Genomics 2020; 21:452. [PMID: 32611311 PMCID: PMC7329468 DOI: 10.1186/s12864-020-06865-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 06/23/2020] [Indexed: 12/04/2022] Open
Abstract
Background Although horizontal gene transfer (HGT) is a widely accepted force in the evolution of prokaryotic genomes, its role in the evolution of eukaryotic genomes remains hotly debated. Some bdelloid rotifers that are resistant to extreme desiccation and radiation undergo a very high level of HGT, whereas in another desiccation-resistant invertebrate, the tardigrade, the pattern does not exist. Overall, the DNA double-strand breaks (DSBs) induced by prolonged desiccation have been postulated to open a gateway to the nuclear genome for exogenous DNA integration and thus to facilitate the HGT process, thereby enhancing the rate of endosymbiotic DNA transfer (EDT). Results We first surveyed the abundance of nuclear mitochondrial DNAs (NUMTs) and nuclear plastid DNAs (NUPTs) in five eukaryotes that are highly resistant to desiccation: the bdelloid rotifers Adineta vaga and Adineta ricciae, the tardigrade Ramazzottius varieornatus, and the resurrection plants Dorcoceras hygrometricum and Selaginella tamariscina. Excessive NUMTs or NUPTs were not detected. Furthermore, we compared 24 groups of desiccation-tolerant organisms with their relatively less desiccation-tolerant relatives but did not find a significant difference in NUMT/NUPT contents. Conclusions Desiccation may induce DSBs, but it is unlikely to dramatically increase the frequency of exogenous sequence integration in most eukaryotes. The capture of exogenous DNA sequences is possible only when DSBs are repaired through a subtype of non-homologous end joining, named alternative end joining (alt-EJ). Due to the deleterious effects of the resulting insertion mutations, alt-EJ is less frequently initiated than other mechanisms.
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Affiliation(s)
- Xixi Li
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering and Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Cheng Fang
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering and Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Jun-Peng Zhao
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering and Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Xiao-Yu Zhou
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering and Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Zhihua Ni
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering and Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, 100875, China.,College of Life Sciences, Hebei University, Baoding, 071002, China
| | - Deng-Ke Niu
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering and Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, 100875, China.
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Yu Q, Li C, Zhang J, Tian Y, Wang H, Zhang Y, Zhang Z, Xiang Q, Han X, Zhang L. Genome-wide identification and expression analysis of the Dof gene family under drought stress in tea ( Camellia sinensis). PeerJ 2020; 8:e9269. [PMID: 32566398 PMCID: PMC7293185 DOI: 10.7717/peerj.9269] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 05/10/2020] [Indexed: 12/17/2022] Open
Abstract
Background DNA-binding one zinc finger (Dof) proteins are plant-specific transcription factors important for seed development, hormone regulation, and defense against abiotic stress. Although drought stress is a key determinant of plant physiology and metabolic homeostasis, the role of Dof genes in different degrees of PEG6000-induced drought stress has received little attention. Methods Tea plants (Camellia sinensis) were exposed to mild, moderate and severe drought stress. The Tea Genome and Plant TFDB databases were used to identify Dof gene family members in the tea plant. Clustal W2.1, MEGA6.0, ScanProsite, SMART, ExPASy, GSDS, MEME and STRING were used to build a phylogenetic tree, predict the molecular masses and isoelectric points of the Dof proteins, and construct a predicted protein-protein interaction network between the CsDof TFs and proteins in the A. thaliana database. The expression patterns of Dof genes in different tissues were analyzed, and qRT-PCR was used to measure the expression of Dof genes under different degrees of drought stress in tea. Results We identified 16 Dof genes in tea (C. sinensis cv. Huangjinya) using whole-genome analysis. Through comparative analysis of tea and Arabidopsis thaliana, we divided the Dof genes into four families (A, B, C, and D). We identified 15 motifs in the amino acid sequences of the CsDof proteins. Gene sequences and motif structures were highly conserved among families, especially in the B1 and C2 subfamilies. The protein-protein interaction network indicated that multiple CsDof proteins may be involved in the response to drought stress. Real-time PCR was used to examine the tissue-specific expression patterns of the CsDof genes and to measure their responses to different levels of PEG6000-induced drought stress in mature leaves. Most CsDof genes responded to drought stress. These results provide information on the Dof gene family in tea, offer new insights into the function of CsDof genes in a perennial species, and lay the foundation for further analysis of their functions.
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Affiliation(s)
- Qian Yu
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Chen Li
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Jiucheng Zhang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Yueyue Tian
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Hanyue Wang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Yue Zhang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Zhengqun Zhang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Qinzeng Xiang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Xiaoyang Han
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Lixia Zhang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.,State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
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35
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Vidović M, Ćuković K. Isolation of high-quality RNA from recalcitrant leaves of variegated and resurrection plants. 3 Biotech 2020; 10:286. [PMID: 32550105 DOI: 10.1007/s13205-020-02279-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 05/25/2020] [Indexed: 01/16/2023] Open
Abstract
Resurrection plant Ramonda serbica is a suitable model to investigate mechanisms of desiccation tolerance, while variegated Pelargonium zonale has been proven to serve as an excellent model for the metabolite allocation between sink tissue and source tissue within the same organ. However, the genomes of these plants are still not sequenced, limiting their application in molecular studies. To investigate the transcript abundance by next-generation sequencing, high-quality RNA input is required. Leaves of both P. zonale and R. serbica are rich in polyphenols that interfere with high-quality RNA extraction by common protocols. Moreover, low water content and high amount of sugars and other osmoprotectants in desiccated R. serbica leaves present the additional challenge in total RNA extraction. Here, we evaluated and compared several already established TRIzol- and CTAB-based protocols aiming to develop the efficient, simple and low-cost methods for the extraction of the satisfactory yield RNA of great purity and integrity, required for the construction of high-quality cDNA libraries. Our results show that the CTAB-based protocol (i.e. CTAB 1b) enabled the extraction of high-quality RNA from photosynthetically active and non-photosynthetically active leaf sectors of P. zonale, with high RIN values. On the other hand, TRIzol-based protocol provided a high RNA yield with low contamination and high RNA integrity even in desiccated leaves of R. serbica. We envisage that the proposed protocol would be suitable for the RNA extractions from other desiccated organs (e.g. seeds, grains, pollen grains).
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Affiliation(s)
- Marija Vidović
- Department of Life Science, University of Belgrade, Institute for Multidisciplinary Research, Kneza Višeslava 1, Belgrade, 11030 Serbia
| | - Katarina Ćuković
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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36
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Ostria-Gallardo E, Larama G, Berríos G, Fallard A, Gutiérrez-Moraga A, Ensminger I, Manque P, Bascuñán-Godoy L, Bravo LA. Decoding Gene Networks Modules That Explain the Recovery of Hymenoglossum cruentum Cav. After Extreme Desiccation. FRONTIERS IN PLANT SCIENCE 2020; 11:574. [PMID: 32499805 PMCID: PMC7243127 DOI: 10.3389/fpls.2020.00574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 04/17/2020] [Indexed: 05/17/2023]
Abstract
Hymenoglossum cruentum (Hymenophyllaceae) is a poikilohydric, homoiochlorophyllous desiccation-tolerant (DT) epiphyte fern. It can undergo fast and frequent dehydration-rehydration cycles. This fern is highly abundant at high-humidity/low-light microenvironments within the canopy, although rapid changes in humidity and light intensity are frequent. The objective of this research is to identify genes associated to desiccation-rehydration cycle in the transcriptome of H. cruentum to better understand the genetic dynamics behind its desiccation tolerance mechanism. H. cruentum plants were subjected to a 7 days long desiccation-rehydration process and then used to identify key expressed genes associated to its capacity to dehydrate and rehydrate. The relative water content (RWC) and maximum quantum efficiency (F v/F m) of H. cruentum fronds decayed to 6% and 0.04, respectively, at the end of the desiccation stage. After re-watering, the fern showed a rapid recovery of RWC and F v/F m (ca. 73% and 0.8, respectively). Based on clustering and network analysis, our results reveal key genes, such as UBA/TS-N, DYNLL, and LHC, orchestrating intracellular motility and photosynthetic metabolism; strong balance between avoiding cell death and defense (CAT3, AP2/ERF) when dehydrated, and detoxifying pathways and stabilization of photosystems (GST, CAB2, and ELIP9) during rehydration. Here we provide novel insights into the genetic dynamics behind the desiccation tolerance mechanism of H. cruentum.
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Affiliation(s)
- Enrique Ostria-Gallardo
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - Giovanni Larama
- Centro de Excelencia de Modelación y Computación Científica, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
| | - Graciela Berríos
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - Ana Fallard
- Laboratorio de Fisiología y Biología Molecular Vegetal, Departamento de Cs. Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Forestales, Instituto de Agroindustria, Universidad de La Frontera, Temuco, Chile
| | - Ana Gutiérrez-Moraga
- Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Ingo Ensminger
- Department of Biology, University of Toronto, Toronto, ON, Canada
| | - Patricio Manque
- Center for Integrative Biology, Universidad Mayor, Santiago, Chile
| | | | - León A. Bravo
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
- Laboratorio de Fisiología y Biología Molecular Vegetal, Departamento de Cs. Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Forestales, Instituto de Agroindustria, Universidad de La Frontera, Temuco, Chile
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Wang B, Yang J, Xu C, Yi L, Wan C. Dynamic expression of intra‐ and extra‐cellular proteome and the influence of epiphytic bacteria for
Nostoc flagelliforme
in response to rehydration. Environ Microbiol 2020; 22:1251-1264. [DOI: 10.1111/1462-2920.14931] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 01/27/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Bing Wang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life SciencesCentral China Normal University No. 152 Luoyu Road, Wuhan 430079 People's Republic of China
| | - Jingjing Yang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life SciencesCentral China Normal University No. 152 Luoyu Road, Wuhan 430079 People's Republic of China
| | - Chen Xu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life SciencesCentral China Normal University No. 152 Luoyu Road, Wuhan 430079 People's Republic of China
| | - Lanxing Yi
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life SciencesCentral China Normal University No. 152 Luoyu Road, Wuhan 430079 People's Republic of China
| | - Cuihong Wan
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life SciencesCentral China Normal University No. 152 Luoyu Road, Wuhan 430079 People's Republic of China
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Ostria-Gallardo E, Larama G, Berríos G, Fallard A, Gutiérrez-Moraga A, Ensminger I, Bravo LA. A comparative gene co-expression analysis using self-organizing maps on two congener filmy ferns identifies specific desiccation tolerance mechanisms associated to their microhabitat preference. BMC PLANT BIOLOGY 2020; 20:56. [PMID: 32019526 PMCID: PMC7001327 DOI: 10.1186/s12870-019-2182-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 12/03/2019] [Indexed: 05/27/2023]
Abstract
BACKGROUND Filmy-ferns (Hymenophyllaceae) are poikilohydric, homoiochlorophyllous desiccation-tolerant (DT) epiphytes. They can colonize lower and upper canopy environments of humid forest. Filmy-ferns desiccate rapidly (hours), contrasting with DT angiosperms (days/weeks). It has been proposed that desiccation tolerance in filmy-ferns would be associated mainly with constitutive features rather than induced responses during dehydration. However, we hypothesize that the inter-specific differences in vertical distribution would be associated with different dynamics of gene expression within the dehydration or rehydration phases. A comparative transcriptomic analysis with an artificial neural network was done on Hymenophyllum caudiculatum (restricted to lower canopy) and Hymenophyllum dentatum (reach upper canopy) during a desiccation/rehydration cycle. RESULTS Raw reads were assembled into 69,599 transcripts for H. dentatum and 34,726 transcripts for H. caudiculatum. Few transcripts showed significant changes in differential expression (DE). H. caudiculatum had ca. twice DE genes than H. dentatum and higher proportion of increased-and-decreased abundance of genes occurs during dehydration. In contrast, the abundance of genes in H. dentatum decreased significantly when transitioning from dehydration to rehydration. According to the artificial neural network results, H. caudiculatum enhanced osmotic responses and phenylpropanoid related pathways, whilst H. dentatum enhanced its defense system responses and protection against high light stress. CONCLUSIONS Our findings provide a deeper understanding of the mechanisms underlying the desiccation tolerance responses of two filmy ferns and the relationship between the species-specific response and the microhabitats these ferns occupy in nature.
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Affiliation(s)
- Enrique Ostria-Gallardo
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas CEAZA, La Serena, Chile.
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile.
| | - Giovanni Larama
- Centro de Excelencia de Modelación y Computación Científica, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
| | - Graciela Berríos
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - Ana Fallard
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | | | - Ingo Ensminger
- Department of Biology, University of Toronto, Toronto, ON, Canada
| | - León A Bravo
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile.
- Laboratorio de Fisiología y Biología Molecular Vegetal, Departamento de Cs. Agronómicas y Recursos Naturales, Facultad de Cs. Agropecuarias y Forestales, Instituto de Agroindustria, Universidad de La Frontera, Temuco, Chile.
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López-Pozo M, Flexas J, Gulías J, Carriquí M, Nadal M, Perera-Castro AV, Clemente-Moreno MJ, Gago J, Núñez-Olivera E, Martínez-Abaigar J, Hernández A, Artetxe U, Bentley J, Farrant JM, Verhoeven A, García-Plazaola JI, Fernández-Marín B. A field portable method for the semi-quantitative estimation of dehydration tolerance of photosynthetic tissues across distantly related land plants. PHYSIOLOGIA PLANTARUM 2019; 167:540-555. [PMID: 30515832 DOI: 10.1111/ppl.12890] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 11/21/2018] [Accepted: 11/28/2018] [Indexed: 05/22/2023]
Abstract
Desiccation tolerant (DT) plants withstand complete cellular dehydration, reaching relative water contents (RWC) below 30% in their photosynthetic tissues. Desiccation sensitive (DS) plants exhibit different degrees of dehydration tolerance (DHT), never surviving water loss >70%. To date, no procedure for the quantitative evaluation of DHT extent exists that is able to discriminate DS species with differing degrees of DHT from truly DT plants. We developed a simple, feasible and portable protocol to differentiate between DT and different degrees of DHT in the photosynthetic tissues of seed plants and between fast desiccation (< 24 h) tolerant (FDT) and sensitive (FDS) bryophytes. The protocol is based on (1) controlled desiccation inside Falcon tubes equilibrated at three different relative humidities that, consequently, induce three different speeds and extents of dehydration and (2) an evaluation of the average percentage of maximal photochemical efficiency of PSII (Fv /fm) recovery after rehydration. Applying the method to 10 bryophytes and 28 tracheophytes from various locations, we found that (1) imbibition of absorbent material with concentrated salt-solutions inside the tubes provides stable relative humidity and avoids direct contact with samples; (2) for 50 ml capacity tubes, the optimal plant amount is 50-200 mg fresh weight; (3) the method is useful in remote locations due to minimal instrumental requirements; and (4) a threshold of 30% recovery of the initial Fv /fm upon reaching RWC ≤ 30% correctly categorises DT species, with three exceptions: two poikilochlorophyllous species and one gymnosperm. The protocol provides a semi-quantitative expression of DHT that facilitates comparisons of species with different morpho-physiological traits and/or ecological attributes.
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Affiliation(s)
- Marina López-Pozo
- Department Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Jaume Flexas
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Javier Gulías
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Marc Carriquí
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Miquel Nadal
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Alicia V Perera-Castro
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - María José Clemente-Moreno
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Jorge Gago
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | | | | | - Antonio Hernández
- Department Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Unai Artetxe
- Department Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Joanne Bentley
- Department of Molecular and Cell Biology, University of Cape Town, Rondebosch, South Africa
| | - Jill M Farrant
- Department of Molecular and Cell Biology, University of Cape Town, Rondebosch, South Africa
| | - Amy Verhoeven
- Biology Department (OWS352), University of St. Thomas, St. Paul, MN, USA
| | | | - Beatriz Fernández-Marín
- Department Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
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Brulé V, Rafsanjani A, Asgari M, Western TL, Pasini D. Three-dimensional functional gradients direct stem curling in the resurrection plant Selaginella lepidophylla. J R Soc Interface 2019; 16:20190454. [PMID: 31662070 PMCID: PMC6833318 DOI: 10.1098/rsif.2019.0454] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 10/10/2019] [Indexed: 12/16/2022] Open
Abstract
Upon hydration and dehydration, the vegetative tissue of Selaginella lepidophylla can reversibly swell and shrink to generate complex morphological transformations. Here, we investigate how structural and compositional properties at tissue and cell wall levels in S. lepidophylla lead to different stem curling profiles between inner and outer stems. Our results show that directional bending in both stem types is associated with cross-sectional gradients of tissue density, cell orientation and secondary cell wall composition between adaxial and abaxial stem sides. In inner stems, longitudinal gradients of cell wall thickness and composition affect tip-to-base tissue swelling and shrinking, allowing for more complex curling as compared to outer stems. Together, these features yield three-dimensional functional gradients that allow the plant to reproducibly deform in predetermined patterns that vary depending on the stem type. This study is the first to demonstrate functional gradients at different hierarchical levels combining to operate in a three-dimensional context.
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Affiliation(s)
- Véronique Brulé
- Department of Biology, McGill University, 1205 Avenue Docteur Penfield, Montréal, QC, CanadaH3A 1B1
| | - Ahmad Rafsanjani
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montréal, QC, CanadaH3A 0C3
- Department of Materials, ETH Zürich, 8093 Zürich, Switzerland
| | - Meisam Asgari
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montréal, QC, CanadaH3A 0C3
- Theoretical and Applied Mechanics Program, Northwestern University, Evanston, IL 60208, USA
| | - Tamara L. Western
- Department of Biology, McGill University, 1205 Avenue Docteur Penfield, Montréal, QC, CanadaH3A 1B1
| | - Damiano Pasini
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montréal, QC, CanadaH3A 0C3
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Artur MAS, Rienstra J, Dennis TJ, Farrant JM, Ligterink W, Hilhorst H. Structural Plasticity of Intrinsically Disordered LEA Proteins from Xerophyta schlechteri Provides Protection In Vitro and In Vivo. FRONTIERS IN PLANT SCIENCE 2019; 10:1272. [PMID: 31681372 PMCID: PMC6798065 DOI: 10.3389/fpls.2019.01272] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/11/2019] [Indexed: 05/27/2023]
Abstract
Late embryogenesis abundant (LEA) proteins are essential to the ability of resurrection plants and orthodox seeds to protect the subcellular milieu against irreversible damage associated with desiccation. In this work, we investigated the structure and function of six LEA proteins expressed during desiccation in the monocot resurrection species Xerophyta schlechteri (XsLEAs). In silico analyses suggested that XsLEAs are hydrophilic proteins with variable intrinsically disordered protein (IDP) properties. Circular dichroism (CD) analysis indicated that these proteins are mostly unstructured in water but acquire secondary structure in hydrophobic solution, suggesting that structural dynamics may play a role in their function in the subcellular environment. The protective property of XsLEAs was demonstrated by their ability to preserve the activity of the enzyme lactate dehydrogenase (LDH) against desiccation, heat and oxidative stress, as well as growth of Escherichia coli upon exposure to osmotic and salt stress. Subcellular localization analysis indicated that XsLEA recombinant proteins are differentially distributed in the cytoplasm, membranes and nucleus of Nicotiana benthamiana leaves. Interestingly, a LEA_1 family protein (XsLEA1-8), showing the highest disorder-to-order propensity and protective ability in vitro and in vivo, was also able to enhance salt and drought stress tolerance in Arabidopsis thaliana. Together, our results suggest that the structural plasticity of XsLEAs is essential for their protective activity to avoid damage of various subcellular components caused by water deficit stress. XsLEA1-8 constitutes a potential model protein for engineering structural stability in vitro and improvement of water-deficit stress tolerance in plants.
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Affiliation(s)
| | - Juriaan Rienstra
- Laboratory of Plant Physiology, Wageningen University, Wageningen, Netherlands
| | - Timothy J. Dennis
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Jill M. Farrant
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Wilco Ligterink
- Laboratory of Plant Physiology, Wageningen University, Wageningen, Netherlands
| | - Henk Hilhorst
- Laboratory of Plant Physiology, Wageningen University, Wageningen, Netherlands
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Hell AF, Gasulla F, Gonzï Lez-Hourcade MA, Del Campo EM, Centeno DC, Casano LM. Tolerance to Cyclic Desiccation in Lichen Microalgae is Related to Habitat Preference and Involves Specific Priming of the Antioxidant System. PLANT & CELL PHYSIOLOGY 2019; 60:1880-1891. [PMID: 31127294 DOI: 10.1093/pcp/pcz103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/15/2019] [Indexed: 06/09/2023]
Abstract
Oxidative stress is a crucial challenge for lichens exposed to cyclic desiccation and rehydration (D/R). However, strategies to overcome this potential stress are still being unraveled. Therefore, the physiological performance and antioxidant mechanisms of two lichen microalgae, Trebouxia sp. (TR9) and Coccomyxa simplex (Csol), were analyzed. TR9 was isolated from Ramalina farinacea, a Mediterranean fruticose epiphytic lichen adapted to xeric habitats, while Csol is the phycobiont of Solorina saccata, a foliaceous lichen that grows on humid rock crevices. The tolerance to desiccation of both species was tested by subjecting them to different drying conditions and to four consecutive daily cycles of D/R. Our results show that a relative humidity close to that of their habitats was crucial to maintain the photosynthetic rates. Concerning antioxidant enzymes, in general, manganese superoxide dismutases (MnSODs) were induced after desiccation and decreased after rehydration. In TR9, catalase (CAT)-A increased, and its activity was maintained after four cycles of D/R. Ascorbate peroxidase activity was detected only in Csol, while glutathione reductase increased only in TR9. Transcript levels of antioxidant enzymes indicate that most isoforms of MnSOD and FeSOD were induced by desiccation and repressed after rehydration. CAT2 gene expression was also upregulated and maintained at higher levels even after four cycles of D/R in accordance with enzymatic activities. To our knowledge, this is the first study to include the complete set of the main antioxidant enzymes in desiccation-tolerant microalgae. The results highlight the species-specific induction of the antioxidant system during cyclic D/R, suggesting a priming of oxidative defence metabolism.
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Affiliation(s)
- Aline F Hell
- Department of Life Sciences, University of Alcal�, Alcal� de Henares, Madrid, Spain
- Centre of Natural Sciences and Humanities, Federal University of ABC, S�o Bernardo do Campo, SP, Brazil
| | - Francisco Gasulla
- Department of Life Sciences, University of Alcal�, Alcal� de Henares, Madrid, Spain
| | | | - Eva M Del Campo
- Department of Life Sciences, University of Alcal�, Alcal� de Henares, Madrid, Spain
| | - Danilo C Centeno
- Centre of Natural Sciences and Humanities, Federal University of ABC, S�o Bernardo do Campo, SP, Brazil
| | - Leonardo M Casano
- Department of Life Sciences, University of Alcal�, Alcal� de Henares, Madrid, Spain
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43
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Marques A, Nijveen H, Somi C, Ligterink W, Hilhorst H. Induction of desiccation tolerance in desiccation sensitive Citrus limon seeds. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2019; 61:624-638. [PMID: 30697936 PMCID: PMC6593971 DOI: 10.1111/jipb.12788] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 01/25/2019] [Indexed: 05/03/2023]
Abstract
Many economically important perennial species bear recalcitrant seeds, including tea, coffee, cocoa, mango, citrus, rubber, oil palm and coconut. Orthodox seeds can be dried almost completely without losing viability, but so-called recalcitrant seeds have a very limited storage life and die upon drying below a higher critical moisture content than orthodox seeds. As a result, the development of long-term storage methods for recalcitrant seeds is compromised. Lowering this critical moisture content would be very valuable since dry seed storage is the safest, most convenient and cheapest method for conserving plant genetic resources. Therefore, we have attempted to induce desiccation tolerance (DT) in the desiccation sensitive seeds of Citrus limon. We show that DT can be induced by paclobutrazol (an inhibitor of gibberellin biosynthesis) and we studied its associated transcriptome to delineate the molecular mechanisms underlying this induction of DT. Paclobutrazol not only interfered with gibberellin related gene expression but also caused extensive changes in expression of genes involved in the biosynthesis and signaling of other hormones. Paclobutrazol induced a transcriptomic switch encompassing suppression of biotic- and induction of abiotic responses. We hypothesize that this is the main driver of the induction of DT by paclobutrazol in C. limon seeds.
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Affiliation(s)
- Alexandre Marques
- Laboratory of Plant PhysiologyWageningen University and ResearchWageningenThe Netherlands
| | - Harm Nijveen
- Laboratory of Plant PhysiologyWageningen University and ResearchWageningenThe Netherlands
- Bioinformatics GroupWageningen University and ResearchWageningenThe Netherlands
| | - Charles Somi
- Laboratory of Plant PhysiologyWageningen University and ResearchWageningenThe Netherlands
| | - Wilco Ligterink
- Laboratory of Plant PhysiologyWageningen University and ResearchWageningenThe Netherlands
| | - Henk Hilhorst
- Laboratory of Plant PhysiologyWageningen University and ResearchWageningenThe Netherlands
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44
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Genome-level responses to the environment: plant desiccation tolerance. Emerg Top Life Sci 2019; 3:153-163. [DOI: 10.1042/etls20180139] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 03/12/2019] [Accepted: 03/15/2019] [Indexed: 01/01/2023]
Abstract
Abstract
Plants being sessile organisms are well equipped genomically to respond to environmental stressors peculiar to their habitat. Evolution of plants onto land was enabled by the ability to tolerate extreme water loss (desiccation), a feature that has been retained within genomes but not universally expressed in most land plants today. In the majority of higher plants, desiccation tolerance (DT) is expressed only in reproductive tissues (seeds and pollen), but some 135 angiosperms display vegetative DT. Here, we review genome-level responses associated with DT, pointing out common and yet sometimes discrepant features, the latter relating to evolutionary adaptations to particular niches. Understanding DT can lead to the ultimate production of crops with greater tolerance of drought than is currently realized.
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Wang B, Yang L, Zhang Y, Chen S, Gao X, Wan C. Investigation of the dynamical expression of Nostoc flagelliforme proteome in response to rehydration. J Proteomics 2019; 192:160-168. [DOI: 10.1016/j.jprot.2018.08.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 08/20/2018] [Accepted: 08/27/2018] [Indexed: 12/18/2022]
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Artur MAS, Zhao T, Ligterink W, Schranz E, Hilhorst HWM. Dissecting the Genomic Diversification of Late Embryogenesis Abundant (LEA) Protein Gene Families in Plants. Genome Biol Evol 2019; 11:459-471. [PMID: 30407531 PMCID: PMC6379091 DOI: 10.1093/gbe/evy248] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2018] [Indexed: 01/29/2023] Open
Abstract
Late embryogenesis abundant (LEA) proteins include eight multigene families that are expressed in response to water loss during seed maturation and in vegetative tissues of desiccation tolerant species. To elucidate LEA proteins evolution and diversification, we performed a comprehensive synteny and phylogenetic analyses of the eight gene families across 60 complete plant genomes. Our integrated comparative genomic approach revealed that synteny conservation and diversification contributed to LEA family expansion and functional diversification in plants. We provide examples that: 1) the genomic diversification of the Dehydrin family contributed to differential evolution of amino acid sequences, protein biochemical properties, and gene expression patterns, and led to the appearance of a novel functional motif in angiosperms; 2) ancient genomic diversification contributed to the evolution of distinct intrinsically disordered regions of LEA_1 proteins; 3) recurrent tandem-duplications contributed to the large expansion of LEA_2; and 4) dynamic synteny diversification played a role on the evolution of LEA_4 and its function on plant desiccation tolerance. Taken together, these results show that multiple evolutionary mechanisms have not only led to genomic diversification but also to structural and functional plasticity among LEA proteins which have jointly contributed to the adaptation of plants to water-limiting environments.
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Affiliation(s)
- Mariana Aline Silva Artur
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Tao Zhao
- Biosystematics Group, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Wilco Ligterink
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Eric Schranz
- Biosystematics Group, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Henk W M Hilhorst
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
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Plancot B, Gügi B, Mollet JC, Loutelier-Bourhis C, Ramasandra Govind S, Lerouge P, Follet-Gueye ML, Vicré M, Alfonso C, Nguema-Ona E, Bardor M, Driouich A. Desiccation tolerance in plants: Structural characterization of the cell wall hemicellulosic polysaccharides in three Selaginella species. Carbohydr Polym 2018; 208:180-190. [PMID: 30658789 DOI: 10.1016/j.carbpol.2018.12.051] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 11/16/2018] [Accepted: 12/17/2018] [Indexed: 12/16/2022]
Abstract
Drought-induced dehydration of vegetative tissues in lycopods affects growth and survival. Different species of Selaginella have evolved a series of specialized mechanisms to tolerate desiccation in vegetative tissues in response to water stress. In the present study, we report on the structural characterization of the leaf cell wall of the desiccation-tolerant species S. involvens and two desiccation-sensitive species, namely S. kraussiana and S. moellendorffii. Isolated cell walls from hydrated and desiccated leaves of each species were fractionated and the resulting oligosaccharide fragments were analyzed to determine their structural features. Our results demonstrate that desiccation induces substantial modifications in the cell wall composition and structure. Altogether, these data highlight the fact that structural remodeling of cell wall hemicellulosic polysaccharides including XXXG-rich xyloglucan, arabinoxylan and acetylated galactomannan is an important process in order to mitigate desiccation stress in Selaginella.
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Affiliation(s)
- Barbara Plancot
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France.
| | - Bruno Gügi
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France
| | - Jean-Claude Mollet
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France
| | | | | | - Patrice Lerouge
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France
| | - Marie-Laure Follet-Gueye
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France
| | - Maïté Vicré
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France
| | - Carlos Alfonso
- Normandie Univ, UniRouen, CNRS UMR 6014, COBRA, 76000, Rouen, France
| | - Eric Nguema-Ona
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France
| | - Muriel Bardor
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France; Institut Universitaire de France, Paris, France
| | - Azeddine Driouich
- Normandie Univ, UniRouen, Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), 76000, Rouen, France; Fédération de Recherche "Normandie-Végétal"-FED 4277, 76000, Rouen, France
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Liu J, Moyankova D, Lin CT, Mladenov P, Sun RZ, Djilianov D, Deng X. Transcriptome reprogramming during severe dehydration contributes to physiological and metabolic changes in the resurrection plant Haberlea rhodopensis. BMC PLANT BIOLOGY 2018; 18:351. [PMID: 30541446 PMCID: PMC6291977 DOI: 10.1186/s12870-018-1566-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 11/22/2018] [Indexed: 05/17/2023]
Abstract
BACKGROUND Water shortage is a major factor that harms agriculture and ecosystems worldwide. Plants display various levels of tolerance to water deficit, but only resurrection plants can survive full desiccation of their vegetative tissues. Haberlea rhodopensis, an endemic plant of the Balkans, is one of the few resurrection plants found in Europe. We performed transcriptomic analyses of this species under slight, severe and full dehydration and recovery to investigate the dynamics of gene expression and associate them with existing physiological and metabolomics data. RESULTS De novo assembly yielded a total of 142,479 unigenes with an average sequence length of 1034 nt. Among them, 18,110 unigenes were differentially expressed. Hierarchical clustering of all differentially expressed genes resulted in seven clusters of dynamic expression patterns. The most significant expression changes, involving more than 15,000 genes, started at severe dehydration (~ 20% relative water content) and were partially maintained at full desiccation (< 10% relative water content). More than a hundred pathways were enriched and functionally organized in a GO/pathway network at the severe dehydration stage. Transcriptomic changes in key pathways were analyzed and discussed in relation to metabolic processes, signal transduction, quality control of protein and DNA repair in this plant during dehydration and rehydration. CONCLUSION Reprograming of the transcriptome occurs during severe dehydration, resulting in a profound alteration of metabolism toward alternative energy supply, hormone signal transduction, and prevention of DNA/protein damage under very low cellular water content, underlying the observed physiological and metabolic responses and the resurrection behavior of H. rhodopensis.
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Affiliation(s)
- Jie Liu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093 China
- Facility Horticulture Laboratory of Universities in Shandong, Weifang University of Science and Technology, Shouguang, 262700 China
| | - Daniela Moyankova
- Abiotic Stress Group, Agrobioinstitute, Agricultural Academy, 1164 Sofia, Bulgaria
| | - Chih-Ta Lin
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093 China
| | - Petko Mladenov
- Abiotic Stress Group, Agrobioinstitute, Agricultural Academy, 1164 Sofia, Bulgaria
| | - Run-Ze Sun
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093 China
| | - Dimitar Djilianov
- Abiotic Stress Group, Agrobioinstitute, Agricultural Academy, 1164 Sofia, Bulgaria
| | - Xin Deng
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093 China
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Zhang H, Li Y, Zhu JK. Developing naturally stress-resistant crops for a sustainable agriculture. NATURE PLANTS 2018; 4:989-996. [PMID: 30478360 DOI: 10.1038/s41477-018-0309-4] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 10/17/2018] [Indexed: 05/19/2023]
Abstract
A major problem facing humanity is that our numbers are growing but the availability of land and fresh water for agriculture is not. This problem is being exacerbated by climate change-induced increases in drought, and other abiotic stresses. Stress-resistant crops are needed to ensure yield stability under stress conditions and to minimize the environmental impacts of crop production. Evolution has created thousands of species of naturally stress-resistant plants (NSRPs), some of which have already been subjected to human domestication and are considered minor crops. Broader cultivation of these minor crops will diversify plant agriculture and the human diet, and will therefore help improve global food security and human health. More research should be directed toward understanding and utilizing NSRPs. Technologies are now available that will enable researchers to rapidly improve the genetics of NSRPs, with the goal of increasing NSRP productivity while retaining NSRP stress resistance and nutritional value.
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Affiliation(s)
- Heng Zhang
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China.
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Yuanyuan Li
- Key Laboratory of Plant Stress Research, Shandong Normal University, Jinan, Shandong, China
| | - Jian-Kang Zhu
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China.
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, USA.
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50
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Romero-Rodríguez MC, Archidona-Yuste A, Abril N, Gil-Serrano AM, Meijón M, Jorrín-Novo JV. Germination and Early Seedling Development in Quercus ilex Recalcitrant and Non-dormant Seeds: Targeted Transcriptional, Hormonal, and Sugar Analysis. FRONTIERS IN PLANT SCIENCE 2018; 9:1508. [PMID: 30405659 PMCID: PMC6204751 DOI: 10.3389/fpls.2018.01508] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/26/2018] [Indexed: 05/15/2023]
Abstract
Seed germination and early seedling development have been studied in the recalcitrant species Quercus ilex using targeted transcriptional, hormonal, and sugar analysis. Embryos and seedlings were collected at eight morphologically defined developmental stages, S0-S7. A typical triphasic water uptake curve was observed throughout development, accompanied by a decrease in sucrose and an increase in glucose and fructose. Low levels of abscisic acid (ABA) and high levels of gibberellins (GAs) were observed in mature seeds. Post-germination, indole-3-acetic acid (IAA), increased, whereas GA remained high, a pattern commonly observed during growth and development. The abundance of transcripts from ABA-related genes was positively correlated with the changes in the content of the phytohormone. Transcripts of the drought-related genes Dhn3 and GolS were more abundant at S0, then decreased in parallel with increasing water content. Transcripts for Gapdh, and Nadh6 were abundant at S0, supporting the occurrence of an active metabolism in recalcitrant seeds at the time of shedding. The importance of ROS during germination is manifest in the high transcript levels for Sod and Gst, found in mature seeds. The results presented herein help distinguish recalcitrant (e.g., Q. ilex) seeds from their orthodox counterparts. Our results indicate that recalcitrance is established during seed development but not manifest until germination (S1-S3). Post-germination the patterns are quite similar for both orthodox and recalcitrant seeds.
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Affiliation(s)
- M. Cristina Romero-Rodríguez
- Department of Biochemistry and Molecular Biology, Agrifood Campus of International Excellence, University of Córdoba, Córdoba, Spain
- Departamento de Química Biológica, Dirección de Investigación, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Paraguay
- Centro Multidisciplinario de Investigaciones Tecnológicas, Dirección General de Investigación Científica y Tecnológica, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Antonio Archidona-Yuste
- Department of Biochemistry and Molecular Biology, Agrifood Campus of International Excellence, University of Córdoba, Córdoba, Spain
- Instituto de Agricultura Sostenible, Consejo Superior de Investigaciones Científicas, Campus de Excelencia Internacional Agroalimentario, Córdoba, Spain
| | - Nieves Abril
- Department of Biochemistry and Molecular Biology, Agrifood Campus of International Excellence, University of Córdoba, Córdoba, Spain
| | - Antonio M. Gil-Serrano
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Seville, Spain
| | - Mónica Meijón
- Plant Physiology Lab, Department of Organisms and Systems Biology, Faculty of Biology, University of Oviedo, Oviedo, Spain
| | - Jesús V. Jorrín-Novo
- Department of Biochemistry and Molecular Biology, Agrifood Campus of International Excellence, University of Córdoba, Córdoba, Spain
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