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de Almeida CP, Barbosa RR, Ferraz CG, de Castro RD, Ribeiro PR. Genome-wide identification of the GDSL-type esterase/lipase protein (GELP) gene family in Ricinus communis and its transcriptional regulation during germination and seedling establishment under different abiotic stresses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 214:108939. [PMID: 39029309 DOI: 10.1016/j.plaphy.2024.108939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 07/10/2024] [Accepted: 07/13/2024] [Indexed: 07/21/2024]
Abstract
GDSL-type esterase/lipase protein (GELP) genes are crucial in the specialized lipid metabolism, in the responses to abiotic stresses, and in the regulation of plant homeostasis. R. communis is an important oilseed crop species that can sustain growth and productivity when exposed to harsh environmental conditions. Herein, we raised the question of whether the GELP gene family could be involved in the acquisition of R. communis tolerance to abiotic stresses during seed germination and seedling establishment. Thus, we used bioinformatics and transcriptomics to characterize the R. communis GELP gene family. R. communis genome possesses 96 GELP genes that were characterized by extensive bioinformatics, including phylogenetic analysis, subcellular localization, exon-intron distribution, the analysis of regulatory cis-elements, tandem duplication, and physicochemical properties. Transcriptomics indicated that numerous RcGELP genes are readily responsive to high-temperature and salt stresses and might be potential candidates for genome editing techniques to develop abiotic stress-tolerant crops.
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Affiliation(s)
- Catherine P de Almeida
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil; Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil
| | - Rhaissa R Barbosa
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil; Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil
| | - Caline G Ferraz
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil; Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil
| | - Renato D de Castro
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil
| | - Paulo R Ribeiro
- Metabolomics Research Group, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil; Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo s/n, 40170-115, Salvador, Brazil.
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Yang H, Bai C, Ai X, Yu H, Xu Z, Wang J, Kuai J, Zhao J, Wang B, Zhou G. Conversion of lipids into carbohydrates rescues energy insufficiency in rapeseed germination under waterlogging stress. PHYSIOLOGIA PLANTARUM 2024; 176:e14576. [PMID: 39400914 DOI: 10.1111/ppl.14576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 07/05/2024] [Indexed: 10/15/2024]
Abstract
Waterlogging stress, particularly during seed germination, significantly affects plant growth and development. However, the physiological and molecular mechanisms underlying waterlogging stress responses during rapeseed germination remain unclear. In this study, two rapeseed cultivars, Xiangzayou518 (waterlogging-sensitive) and Dadi199 (waterlogging-tolerant), were used to explore the physiological mechanisms underlying rapeseed response to waterlogging stress during germination. Our results showed that waterlogging significantly decreased the emergence percentage and seedling growth rate. During the radicle elongation period (from 48 to 96 h post-germination), the most sensitive period to waterlogging during germination, sugar content, and glycolysis efficiency were significantly decreased, but anaerobic fermentation was enhanced. In tolerant cultivars, when the energy supply was insufficient, the conversion efficiency of lipids into sugar increased, and the activities of isocitrate lyase, malate synthase, and fructose-1, 6-diphosphatase were enhanced by 11.63, 19.06, and 20.37%, respectively, at 72 h post-germination under waterlogging stress. Transcriptome data showed that the differentially expressed genes were significantly enriched in glucose and lipid metabolism pathways when comparing waterlogged stress and normal conditions. These results indicate that waterlogging affects seed germination in rapeseed by inhibiting carbohydrate metabolism, and the conversion capacity of lipids into sugar under waterlogging stress was stronger in tolerant cultivars than in sensitive cultivars, thus rescuing the insufficient energy supply in seed germination and seedling growth. This study reveals the physiological mechanism of rapeseed response to waterlogging stress during seed germination and provides a valuable reference for improving waterlogging tolerance.
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Affiliation(s)
- Haiyun Yang
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Chenyang Bai
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Xueying Ai
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
- Shenyang Agricultural University, Shenyang, China
| | - Haiqiu Yu
- Shenyang Agricultural University, Shenyang, China
| | - Zhenghua Xu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Jing Wang
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Jie Kuai
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Jie Zhao
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Bo Wang
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Guangsheng Zhou
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
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Qaderi MM, Martel AB, Strugnell CA. Environmental Factors Regulate Plant Secondary Metabolites. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12030447. [PMID: 36771531 PMCID: PMC9920071 DOI: 10.3390/plants12030447] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/13/2023] [Accepted: 01/13/2023] [Indexed: 05/31/2023]
Abstract
Abiotic environmental stresses can alter plant metabolism, leading to inhibition or promotion of secondary metabolites. Although the crucial roles of these compounds in plant acclimation and defense are well known, their response to climate change is poorly understood. As the effects of climate change have been increasing, their regulatory aspects on plant secondary metabolism becomes increasingly important. Effects of individual climate change components, including high temperature, elevated carbon dioxide, drought stress, enhanced ultraviolet-B radiation, and their interactions on secondary metabolites, such as phenolics, terpenes, and alkaloids, continue to be studied as evidence mounting. It is important to understand those aspects of secondary metabolites that shape the success of certain plants in the future. This review aims to present and synthesize recent advances in the effects of climate change on secondary metabolism, delving from the molecular aspects to the organismal effects of an increased or decreased concentration of these compounds. A thorough analysis of the current knowledge about the effects of climate change components on plant secondary metabolites should provide us with the required information regarding plant performance under climate change conditions. Further studies should provide more insight into the understanding of multiple environmental factors effects on plant secondary metabolites.
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Affiliation(s)
- Mirwais M. Qaderi
- Department of Biology, Mount Saint Vincent University, 166 Bedford Highway, Halifax, NS B3M 2J6, Canada
- Department of Biology, Saint Mary’s University, 923 Robie Street, Halifax, NS B3H 3C3, Canada
| | - Ashley B. Martel
- Department of Biology, Saint Mary’s University, 923 Robie Street, Halifax, NS B3H 3C3, Canada
| | - Courtney A. Strugnell
- Department of Biology, Mount Saint Vincent University, 166 Bedford Highway, Halifax, NS B3M 2J6, Canada
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Thanabut S, Sornplerng P, Buaboocha T. Ectopic expression of rice malate synthase in Arabidopsis revealed its roles in salt stress responses. JOURNAL OF PLANT PHYSIOLOGY 2023; 280:153863. [PMID: 36423447 DOI: 10.1016/j.jplph.2022.153863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 11/05/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Expression of rice malate synthase (OsMS), one of the two key genes in the glyoxylate cycle, is highly upregulated under salt stress. In this study, we aimed to investigate the role of OsMS in salt stress responses using the Arabidopsis T-DNA insertional mutant line of malate synthase (AtMS), an OsMS orthologous gene, for ectopic expression. Germination of the Atms mutant under salt stress was lower than that of Arabidopsis Col-0 wildtype (WT); furthermore, the two Atms mutant lines ectopically expressing OsMS reversed the salt-sensitive phenotype. Atms mutants salt-treated for 3 days exhibited higher electrolyte leakage, higher Na+/K+ ratio, lower expression of stress-responsive genes, and lower soluble sugar content than WT and the two OsMS-expressing Atms mutant lines. Consistently, Atms mutants salt-treated for 3 days followed by a 5-day recovery period displayed greater fresh-weight reduction. Notably, leaf greenness and chlorophyll and total carotenoid contents were higher in the Atms mutant lines than in the WT under stress. OsMS-expressing Atms mutants exhibited a change in pigment content closer to that of WT. During dark-induced senescence, an Atms mutant, Aticl, mutant (the other key gene in the glyoxylate cycle), and three double mutant lines of Atms and Aticl exhibited lower decreases in leaf greenness than the WT and OsMS-expressing Atms mutant lines. Furthermore, SAG12 expression levels in the Atms mutant, Aticl mutant, and three double mutant lines were lower than those in OsMS-expressing Atms mutant lines. Altogether, our data indicate that OsMS likely plays a key role in salt stress responses, possibly through the induction of leaf senescence.
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Affiliation(s)
- Supisara Thanabut
- Center of Excellence for Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
| | - Pinmanee Sornplerng
- Center of Excellence for Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
| | - Teerapong Buaboocha
- Center of Excellence for Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand; Omics Sciences and Bioinformatics Center, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
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Guo S, Klinkesorn U, Lorjaroenphon Y, Ge Y, Na Jom K. Effects of germinating temperature and time on metabolite profiles of sunflower ( Helianthus annuus L.) seed. Food Sci Nutr 2021; 9:2810-2822. [PMID: 34136149 PMCID: PMC8194965 DOI: 10.1002/fsn3.1983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 11/09/2022] Open
Abstract
Sprouts with higher levels of nutrients and lower content of antinutritional substances have been gained a growing interest in the influence on the human's health. The study of the influence of germination temperature and time on the metabolite profiles of sunflower seed was studied by a metabolomics approach based on gas chromatography-flame ionization detection (GC-FID). Samples were extracted and fractionated covering a wide range of lipophilic and hydrophilic spectra. A total of 90 metabolites were identified by comparison with reference standards. Principal component analysis (PCA) revealed distinct dynamic changes in metabolites with the germinating time. Heatmap and agglomerative hierarchical clustering analysis revealed the differences and similarities among the samples. The germinating sunflower seeds clustered into three major groups. For instance, group I with a high content of sterols, monosaccharide, and amino acids, indicating the germination process, resulted in an increase in amino acids and monosaccharide. Group II had a high content of FAME and FFA. Relative targeted quantification of metabolites visually depicted by heatmap showed decreases in fatty acid methyl ester (FAME) and free fatty acid (FFA), and increases in amino acids, α-tocopherol, sterols, and γ-aminobutyric acid (GABA) during germination. Sunflower seeds germinated at 25°C were better for the accumulation of α-tocopherol, stigmasterol, leucine, proline, methionine, glutamine, and GABA compared with those at 35°C. These results help to better understand how germination conditions change the nutritional quality of germinated sunflower seeds from a metabolite profile view, allowing for the rational screening and usage of germinated sunflower seeds in the food industry.
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Affiliation(s)
- Shuangshuang Guo
- Department of Food Science and TechnologyFaculty of Agro‐IndustryKasetsart UniversityBangkokThailand
- International Hospitality & Dietary Culture CollegeNanjing Tech University Pujiang InstituteNanjingChina
| | - Utai Klinkesorn
- Department of Food Science and TechnologyFaculty of Agro‐IndustryKasetsart UniversityBangkokThailand
| | - Yaowapa Lorjaroenphon
- Department of Food Science and TechnologyFaculty of Agro‐IndustryKasetsart UniversityBangkokThailand
| | - Yan Ge
- Plant Phenomics Research CenterNanjing Agricultural UniversityNanjingChina
- College of EngineeringNanjing Agricultural UniversityNanjingChina
| | - Kriskamol Na Jom
- Department of Food Science and TechnologyFaculty of Agro‐IndustryKasetsart UniversityBangkokThailand
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Wang Y, Liu J, Yang F, Zhou W, Mao S, Lin J, Yan X. Untargeted LC-MS-based metabolomics revealed specific metabolic changes in cotyledons and roots of Ricinus communis during early seedling establishment under salt stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 163:108-118. [PMID: 33826995 DOI: 10.1016/j.plaphy.2021.03.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Early seedling development is one of the most crucial period of the plant's life cycle, which is highly susceptible to adverse environmental conditions, especially those impose by salt stress. Castor plant (Ricinus communis) is a famous non-edible oilseed and salt-resistant crop worldwide. However, the specific metabolic responses in the cotyledons and roots of this species during seedling establishment under salt stress are still not clearly understood. In the present study, 16 d castor seedlings were treated with 150 mM NaCl for 6 d, and the metabolite profiling of cotyledons and roots was conducted using liquid chromatography (LC) combined with electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS). The Principal Component Analysis (PCA) results showed that the metabolites were great differed in cotyledons and roots under salt stress. There were 38 differential metabolites, mainly including fatty acid, nucleic acid and organic acids in the cotyledons, but only 19 differential metabolites, mainly including fatty acid and organic acids in the roots under such condition. Furthermore, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis revealed that flavone and flavonol biosynthesis, pantothenate and CoA biosynthesis, citrate cycle and carotenoid biosynthesis were the common metabolic pathways in response to salt stress in the two organs. Salt stress caused metabolite process alteration mainly on carbon and nitrogen metabolisms, and the carbon allocation from root to cotyledon was increased. Additionally, changes of amino acids and nucleic acids profiles were only found in the cotyledons, and the roots could enhance the activity of antioxidant enzyme systems to scavenge ROS under salinity. In conclusion, the present research provides an improved understanding on specific physiological changes in the cotyledons in castor early seedlings, and explores their interaction under salt stress.
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Affiliation(s)
- Yingnan Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Junyu Liu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Fan Yang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Wanli Zhou
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Shuang Mao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China
| | - Jixiang Lin
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Landscape Architecture, Northeast Forestry University, Harbin, 150040, China.
| | - Xiufeng Yan
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.
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Song Y, Zhu J. The roles of metabolic pathways in maintaining primary dormancy of Pinus koraiensis seeds. BMC PLANT BIOLOGY 2019; 19:550. [PMID: 31829143 PMCID: PMC6907207 DOI: 10.1186/s12870-019-2167-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 11/26/2019] [Indexed: 06/02/2023]
Abstract
BACKGROUND Korean pine seeds have primary dormancy following dispersal, leading to poor seed germination and seedling establishment. Metabolic homeostasis determines whether the seeds are dormant or non-dormant. However, the specific metabolic pathways that maintain the primary dormancy of pine seeds are poorly understood. RESULTS Metabolic analysis was employed on the embryos of PDRS (seeds released from primary dormancy) and PDS (primary dormant seeds) on days 0, 5 and 11 after incubation under a germination-inductive temperature. A larger metabolic switch occurred in PDRS embryos from days 0 to 11. The contents of ninety metabolites were significantly changed from days 0 to 5, 83% of which (including most sugars, organic acids and amino acids) increased, reflecting that biosynthetic metabolism processes are initiated. The contents of ninety-two metabolites showed distinct variations from days 5 to 11, 71% of which (including most organic acids and almost all amino acids) reduced substantially. Fructose 6-phosphate, inositol-3-phosphate, 3-phosphoglyceric and D-glucose-6-phosphate contents showed the most decrease with decreasing 409-, 75-, 58- and 41-fold, indicating that the glycolysis and tricarboxylic acid (TCA) cycle strongly slowed down. The contents of the most metabolites in PDS embryos also displayed a relatively larger alteration only from days 0 to 5. Although 64% of metabolites increased from days 0 to 5, their levels were still lower compared with PDRS embryos. Furthermore, most metabolites were not further accumulated from days 5 to 11. Unlike PDRS embryos, almost all amino acids in PDS embryos did not exhibit a substantial decrease from days 5 to 11. Also, there was not a major decrease in the levels of metabolites involved mainly in glycolysis and TCA cycle, while some intermediates even increased. CONCLUSIONS The attenuated biosynthetic metabolism processes, the lower utilization rate of amino acids and the higher operation rate of glycolysis and TCA in embryos maintain primary dormancy.
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Affiliation(s)
- Yuan Song
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiaojun Zhu
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang, 110016, China.
- Qingyuan Forest CERN, Chinese Academy of Sciences, Shenyang, 110016, China.
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de Brito CD, Loureiro MB, Ribeiro PR, Vasconcelos PCT, Fernandez LG, de Castro RD. Osmoconditioning prevents the onset of microtubular cytoskeleton and activation of cell cycle and is detrimental for germination of Jatropha curcas L. seeds. PLANT BIOLOGY (STUTTGART, GERMANY) 2016; 18:1053-1057. [PMID: 27419375 DOI: 10.1111/plb.12482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 07/11/2016] [Indexed: 06/06/2023]
Abstract
Jatropha curcas is an oilseed crop renowned for its tolerance to a diverse range of environmental stresses. In Brazil, this species is grown in semiarid regions where crop establishment requires a better understanding of the mechanisms underlying appropriate seed, seedling and plant behaviour under water restriction conditions. In this context, the objective of this study was to investigate the physiological and cytological profiles of J. curcas seeds in response to imbibition in water (control) and in polyethylene glycol solution (osmoticum). Seed germinability and reactivation of cell cycle events were assessed by means of different germination parameters and immunohistochemical detection of tubulin and microtubules, i.e. tubulin accumulation and microtubular cytoskeleton configurations in water imbibed seeds (control) and in seeds imbibed in the osmoticum. Immunohistochemical analysis revealed increasing accumulation of tubulin and appearance of microtubular cytoskeleton in seed embryo radicles imbibed in water from 48 h onwards. Mitotic microtubules were only visible in seeds imbibed in water, after radicle protrusion, as an indication of cell cycle reactivation and cell proliferation, with subsequent root development. Imbibition in osmoticum prevented accumulation of microtubules, i.e. activation of cell cycle, therefore germination could not be resumed. Osmoconditioned seeds were able to survive re-drying and could resume germination after re-imbibition in water, however, with lower germination performance, possibly due to acquisition of secondary dormancy. This study provides important insights into understanding of the physiological aspects of J. curcas seed germination in response to water restriction conditions.
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Affiliation(s)
- C D de Brito
- Laboratório de Bioquímica, Biotecnologia e Bioprodutos, Departamento de Bioquímica e Biofísica, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador-Ba, Brazil
| | - M B Loureiro
- Laboratório de Bioquímica, Biotecnologia e Bioprodutos, Departamento de Bioquímica e Biofísica, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador-Ba, Brazil
| | - P R Ribeiro
- Laboratório de Bioquímica, Biotecnologia e Bioprodutos, Departamento de Bioquímica e Biofísica, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador-Ba, Brazil
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador-Ba, Brazil
| | - P C T Vasconcelos
- Laboratório de Bioquímica, Biotecnologia e Bioprodutos, Departamento de Bioquímica e Biofísica, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador-Ba, Brazil
| | - L G Fernandez
- Laboratório de Bioquímica, Biotecnologia e Bioprodutos, Departamento de Bioquímica e Biofísica, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador-Ba, Brazil
| | - R D de Castro
- Laboratório de Bioquímica, Biotecnologia e Bioprodutos, Departamento de Bioquímica e Biofísica, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador-Ba, Brazil.
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