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Luo S, Huang J, Jin L, Zou J, Zheng Y, Li D. Transcription factor EgGRP2A regulates EgFATA expression and promotes oleic acid accumulation in oil palm (Elaeis guineensis). JOURNAL OF PLANT PHYSIOLOGY 2024; 299:154263. [PMID: 38772323 DOI: 10.1016/j.jplph.2024.154263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/18/2024] [Accepted: 04/30/2024] [Indexed: 05/23/2024]
Abstract
The oil palm (Elaeis guineensis) is emerging as the world's most important and prolific oilseed crop, celebrated for its impressive oil yield. However, the molecular intricacies that govern lipid metabolism and fatty acid accumulation in oil palm fruits remain relatively underexplored. This study reveals a significant correlation between the expression of EgGRP2A, a transcription factor, and the expression of EgFATA in the oil palm. Yeast one-hybrid analysis and electrophoretic mobility shift assays (EMSA) reveal and confirm the binding interactions between EgGRP2A and the promoter region of EgFATA. Subsequent experiments in oil palm protoplasts show that transient overexpression of EgGRP2A leads to a marked upregulation of EgFATA expression. Conversely, downregulation of EgGRP2A in transgenic oil palm embryoids leads to a significant reduction in EgFATA expression. Metabolite profiling in the transgenic embryoids reveals a significant reduction in unsaturated fatty acids, particularly oleic acid. These findings promise profound insights into the regulatory orchestration of EgFATA and the synthesis of fatty acids, particularly oleic acid, in the oil palm. Furthermore, the results lay the foundation for future breeding and genetic improvement efforts aimed at increasing oleic acid content in oil palm varieties.
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Affiliation(s)
- Shaojie Luo
- School of Life and Health Sciences, Hainan University, Hainan, 570228, China
| | - Jing Huang
- Sanya Nanfan Research Institute, College of Tropical Crops, Hainan University, Hainan, 570228, China
| | - Liu Jin
- School of Life and Health Sciences, Hainan University, Hainan, 570228, China
| | - Jixin Zou
- Rubber Research Institute of Chinese Academy of Tropical Agricultural Sciences (CATAS), China
| | - Yusheng Zheng
- School of Life and Health Sciences, Hainan University, Hainan, 570228, China.
| | - Dongdong Li
- Sanya Nanfan Research Institute, College of Tropical Crops, Hainan University, Hainan, 570228, China.
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Di H, Zhang C, Zhou A, Huang H, Tang Y, Li H, Huang Z, Zhang F, Sun B. Transcriptome Analysis Reveals the Mechanism by Which Exogenous Melatonin Treatment Delays Leaf Senescence of Postharvest Chinese Kale ( Brassica oleracea var. alboglabra). Int J Mol Sci 2024; 25:2250. [PMID: 38396927 PMCID: PMC10889248 DOI: 10.3390/ijms25042250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Melatonin, a pleiotropic small molecule, is employed in horticultural crops to delay senescence and preserve postharvest quality. In this study, 100 µM melatonin treatment delayed a decline in the color difference index h* and a*, maintaining the content of chlorophyll and carotenoids, thereby delaying the yellowing and senescence of Chinese kale. Transcriptome analysis unequivocally validates melatonin's efficacy in delaying leaf senescence in postharvest Chinese kale stored at 20 °C. Following a three-day storage period, the melatonin treatment group exhibited 1637 differentially expressed genes (DEGs) compared to the control group. DEG analysis elucidated that melatonin-induced antisenescence primarily governs phenylpropanoid biosynthesis, lipid metabolism, plant signal transduction, and calcium signal transduction. Melatonin treatment up-regulated core enzyme genes associated with general phenylpropanoid biosynthesis, flavonoid biosynthesis, and the α-linolenic acid biosynthesis pathway. It influenced the redirection of lignin metabolic flux, suppressed jasmonic acid and abscisic acid signal transduction, and concurrently stimulated auxin signal transduction. Additionally, melatonin treatment down-regulated RBOH expression and up-regulated genes encoding CaM, thereby influencing calcium signal transduction. This study underscores melatonin as a promising approach for delaying leaf senescence and provides insights into the mechanism of melatonin-mediated antisenescence in postharvest Chinese kale.
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Affiliation(s)
| | | | | | | | | | | | | | - Fen Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (H.D.); (C.Z.); (A.Z.); (H.H.); (Y.T.); (H.L.); (Z.H.)
| | - Bo Sun
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (H.D.); (C.Z.); (A.Z.); (H.H.); (Y.T.); (H.L.); (Z.H.)
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Liu Z, Zhang T, Xu R, Liu B, Han Y, Dong W, Xie Q, Tang Z, Lei X, Wang C, Fu Y, Gao C. BpGRP1 acts downstream of BpmiR396c/BpGRF3 to confer salt tolerance in Betula platyphylla. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:131-147. [PMID: 37703500 PMCID: PMC10754015 DOI: 10.1111/pbi.14173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 07/22/2023] [Accepted: 08/26/2023] [Indexed: 09/15/2023]
Abstract
Glycine-rich RNA-binding proteins (GRPs) have been implicated in the responses of plants to environmental stresses, but the function of GRP genes involved in salt stress and the underlying mechanism remain unclear. In this study, we identified BpGRP1 (glycine-rich RNA-binding protein), a Betula platyphylla gene that is induced under salt stress. The physiological and molecular responses to salt tolerance were investigated in both BpGRP1-overexpressing and suppressed conditions. BpGRF3 (growth-regulating factor 3) was identified as a regulatory factor upstream of BpGRP1. We demonstrated that overexpression of BpGRF3 significantly increased the salt tolerance of birch, whereas the grf3-1 mutant exhibited the opposite effect. Further analysis revealed that BpGRF3 and its interaction partner, BpSHMT, function upstream of BpGRP1. We demonstrated that BpmiR396c, as an upstream regulator of BpGRF3, could negatively regulate salt tolerance in birch. Furthermore, we uncovered evidence showing that the BpmiR396c/BpGRF3 regulatory module functions in mediating the salt response by regulating the associated physiological pathways. Our results indicate that BpmiR396c regulates the expression of BpGRF3, which plays a role in salt tolerance by targeting BpGRP1.
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Affiliation(s)
- Zhongyuan Liu
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
- Key Laboratory of Forest Plant EcologyMinistry of EducationNortheast Forestry UniversityHarbinChina
- College of ChemistryChemical Engineering and Resource UtilizationNortheast Forestry UniversityHarbinChina
| | - Tengqian Zhang
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Ruiting Xu
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Baichao Liu
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Yating Han
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Wenfang Dong
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Qingjun Xie
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Zihao Tang
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Xiaojin Lei
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Chao Wang
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
| | - Yujie Fu
- Key Laboratory of Forest Plant EcologyMinistry of EducationNortheast Forestry UniversityHarbinChina
- College of ChemistryChemical Engineering and Resource UtilizationNortheast Forestry UniversityHarbinChina
| | - Caiqiu Gao
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbinChina
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Silva VNB, da Silva TLC, Ferreira TMM, Neto JCR, Leão AP, de Aquino Ribeiro JA, Abdelnur PV, Valadares LF, de Sousa CAF, Júnior MTS. Multi-omics Analysis of Young Portulaca oleracea L. Plants' Responses to High NaCl Doses Reveals Insights into Pathways and Genes Responsive to Salinity Stress in this Halophyte Species. PHENOMICS (CHAM, SWITZERLAND) 2023; 3:1-21. [PMID: 36947413 PMCID: PMC9883379 DOI: 10.1007/s43657-022-00061-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 11/24/2022]
Abstract
Soil salinity is among the abiotic stressors that threaten agriculture the most, and purslane (Portulaca oleracea L.) is a dicot species adapted to inland salt desert and saline habitats that hyper accumulates salt and has high phytoremediation potential. Many researchers consider purslane a suitable model species to study the mechanisms of plant tolerance to drought and salt stresses. Here, a robust salinity stress protocol was developed and used to characterize the morphophysiological responses of young purslane plants to salinity stress; then, leaf tissue underwent characterization by distinct omics platforms to gain further insights into its response to very high salinity stress. The salinity stress protocol did generate different levels of stress by gradients of electrical conductivity at field capacity and water potential in the saturation extract of the substrate, and the morphological parameters indicated three distinct stress levels. As expected from a halophyte species, these plants remained alive under very high levels of salinity stress, showing salt crystal-like structures constituted mainly by Na+, Cl-, and K+ on and around closed stomata. A comprehensive and large-scale metabolome and transcriptome single and integrated analyses were then employed using leaf samples. The multi-omics integration (MOI) system analysis led to a data-set of 51 metabolic pathways with at least one enzyme and one metabolite differentially expressed due to salinity stress. These data sets (of genes and metabolites) are valuable for future studies aimed to deepen our knowledge on the mechanisms behind the high tolerance of this species to salinity stress. In conclusion, besides showing that this species applies salt exclusion already in young plants to support very high levels of salinity stress, the initial analysis of metabolites and transcripts data sets already give some insights into other salt tolerance mechanisms used by this species to support high levels of salinity stress. Supplementary Information The online version contains supplementary material available at 10.1007/s43657-022-00061-2.
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Affiliation(s)
- Vivianny Nayse Belo Silva
- Graduate Program of Plant Biotechnology, Federal University of Lavras, CP 3037, Lavras, MG 37200-000 Brazil
| | | | | | | | - André Pereira Leão
- Brazilian Agricultural Research Corporation, Embrapa Agroenergy, Brasília, DF 70770‐901 Brazil
| | | | - Patrícia Verardi Abdelnur
- Institute of Chemistry, Federal University of Goiás, Campus Samambaia, Goiânia, GO 74690‐900 Brazil
- Brazilian Agricultural Research Corporation, Embrapa Agroenergy, Brasília, DF 70770‐901 Brazil
| | | | | | - Manoel Teixeira Souza Júnior
- Graduate Program of Plant Biotechnology, Federal University of Lavras, CP 3037, Lavras, MG 37200-000 Brazil
- Brazilian Agricultural Research Corporation, Embrapa Agroenergy, Brasília, DF 70770‐901 Brazil
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Tisarum R, Chaitachawong N, Takabe T, Singh HP, Samphumphuang T, Cha-um S. Physio-morphological and biochemical responses of dixie grass (Sporobolus virginicus) to NaCl or Na2SO4 stress. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01060-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Elnaggar A, Mosa KA, Ramamoorthy K, El-Keblawy A, Navarro T, Soliman SSM. De novo transcriptome sequencing, assembly, and gene expression profiling of a salt-stressed halophyte (Salsola drummondii) from a saline habitat. PHYSIOLOGIA PLANTARUM 2021; 173:1695-1714. [PMID: 34741316 DOI: 10.1111/ppl.13591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 09/30/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Salsola drummondii is a perennial habitat-indifferent halophyte growing in saline and nonsaline habitats of the Arabian hyperarid deserts. It offers an invaluable opportunity to examine the molecular mechanisms of salt tolerance. The present study was conducted to elucidate these mechanisms through transcriptome profiling of seedlings grown from seeds collected in a saline habitat. The Illumina Hiseq 2500 platform was employed to sequence cDNA libraries prepared from shoots and roots of nonsaline-treated plants (controls) and plants treated with 1200 mM NaCl. Transcriptomic comparison between salt-treated and control samples resulted in 17,363 differentially expressed genes (DEGs), including 12,000 upregulated genes (7870 in roots, 4130 in shoots) and 5363 downregulated genes (4258 in roots and 1105 in shoots). The majority of identified DEGs are known to be involved in transcription regulation (79), signal transduction (82), defense metabolism (101), transportation (410), cell wall metabolism (27), regulatory processes (392), respiration (85), chaperoning (9), and ubiquitination (98) during salt tolerance. This study identified potential genes associated with the salt tolerance of S. drummondii and demonstrated that this tolerance may depend on the induction of certain genes in shoot and root tissues. These gene expressions were validated using reverse-transcription quantitative PCR, the results of which were consistent with transcriptomics results. To the best of our knowledge, this is the first study providing genetic information on salt tolerance mechanisms in S. drummondii.
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Affiliation(s)
- Attiat Elnaggar
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, UAE
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
- Departmento de Botanica y Fisiologia Vegetal, Universidad de Málaga, Málaga, Spain
| | - Kareem A Mosa
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, UAE
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Kalidoss Ramamoorthy
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, UAE
| | - Ali El-Keblawy
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, UAE
- Department of Biology, Faculty of Science, Al-Arish University, Egypt
| | - Teresa Navarro
- Departmento de Botanica y Fisiologia Vegetal, Universidad de Málaga, Málaga, Spain
| | - Sameh S M Soliman
- Department of Medicinal Chemistry, College of Pharmacy, University of Sharjah, Sharjah, UAE
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Wang Y, Du F, Wang J, Li Y, Zhang Y, Zhao X, Zheng T, Li Z, Xu J, Wang W, Fu B. Molecular Dissection of the Gene OsGA2ox8 Conferring Osmotic Stress Tolerance in Rice. Int J Mol Sci 2021; 22:ijms22179107. [PMID: 34502018 PMCID: PMC8430958 DOI: 10.3390/ijms22179107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 11/23/2022] Open
Abstract
Gibberellin 2-oxidase (GA2ox) plays an important role in the GA catabolic pathway and the molecular function of the OsGA2ox genes in plant abiotic stress tolerance remains largely unknown. In this study, we functionally characterized the rice gibberellin 2-oxidase 8 (OsGA2ox8) gene. The OsGA2ox8 protein was localized in the nucleus, cell membrane, and cytoplasm, and was induced in response to various abiotic stresses and phytohormones. The overexpression of OsGA2ox8 significantly enhanced the osmotic stress tolerance of transgenic rice plants by increasing the number of osmotic regulators and antioxidants. OsGA2ox8 was differentially expressed in the shoots and roots to cope with osmotic stress. The plants overexpressing OsGA2ox8 showed reduced lengths of shoots and roots at the seedling stage, but no difference in plant height at the heading stage was observed, which may be due to the interaction of OsGA2ox8 and OsGA20ox1, implying a complex feedback regulation between GA biosynthesis and metabolism in rice. Importantly, OsGA2ox8 was able to indirectly regulate several genes associated with the anthocyanin and flavonoid biosynthetic pathway and the jasmonic acid (JA) and abscisic acid (ABA) biosynthetic pathway, and overexpression of OsGA2ox8 activated JA signal transduction by inhibiting the expression of jasmonate ZIM domain-containing proteins. These results provide a basis for a future understanding of the networks and respective phenotypic effects associated with OsGA2ox8.
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Affiliation(s)
- Yinxiao Wang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China
| | - Fengping Du
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
- College of Life Sciences, Northwest A&F University, Xianyang 712100, China
| | - Juan Wang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
| | - Yingbo Li
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
| | - Yue Zhang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
| | - Xiuqin Zhao
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
| | - Tianqing Zheng
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
| | - Zhikang Li
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
- College of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Jianlong Xu
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
| | - Wensheng Wang
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
- College of Agronomy, Anhui Agricultural University, Hefei 230036, China
- Correspondence: (W.W.); (B.F.); Tel.: +86-10-82106698 (W.W. & B.F.); Fax: +86-10-68918559 (W.W. & B.F.)
| | - Binying Fu
- Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences, South Zhong-Guan-Cun Street 12, Beijing 100081, China; (Y.W.); (F.D.); (J.W.); (Y.L.); (Y.Z.); (X.Z.); (T.Z.); (Z.L.); (J.X.)
- Correspondence: (W.W.); (B.F.); Tel.: +86-10-82106698 (W.W. & B.F.); Fax: +86-10-68918559 (W.W. & B.F.)
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Wang L, Wu S, Huang H, Chen F, Ye M, Yin J, Luo Z, Qi Y, Chen M, Chen Y. High oxygen atmospheric packaging treatment regulates the postharvest changes of Chinese kale (Brassica oleracea var. alboglabra) during storage. J Food Sci 2021; 86:3884-3895. [PMID: 34333772 DOI: 10.1111/1750-3841.15846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/24/2021] [Accepted: 06/12/2021] [Indexed: 11/28/2022]
Abstract
Chinese kale is one of the most popular vegetables in southern China and Asia, but it has a short shelf-life. The effect of high oxygen atmospheric packaging (HOAP) treatment on the respiration rate as well as chlorophyll content and the expression of their metabolism-related genes of the soluble proteins in Chinese kale during storage were assessed. The results showed that Chinese kale subjected to HOAP treatment showed stimulated respiration rate and regulated expression of chlorophyll metabolism-related genes, such as BrChlases, BrPPH (pheophytin pheophorbide hydrolase), BrPAO (pheidea oxygenase gene), BrRCCR (red chlorophyll catabolite reductase), and BrSAG12 (senescence-associated gene), compared to the Chinese kale in the control. The activities of chlorophyll enzymes, that is, Chlase and Mg-dechelatase, were also influenced by HOAP treatment during storage. Furthermore, the total content of soluble proteins was stimulated to accumulate, and the intensity of protein bands, detected by sodium dodecyl sulfate-polyacrylamide gel electrophoresis profiling, increased in HOAP-treated samples. Based on the current results, as well as the results of our previous study regarding HOAP treatment of other vegetables, we speculate that HOAP may function by regulating the respiration rate and the accumulation of functional proteins, especially chlorophyll catabolic and antioxidant enzymes, to maintain the freshness of Chinese kale during storage. PRACTICAL APPLICATION: HOAP treatment could be a potential method for delaying quality changes and extending the shelf-life of Chinese kale after harvest.
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Affiliation(s)
- Ling Wang
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
| | - Siliang Wu
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
| | - Hua Huang
- Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences; Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research, Guangzhou, P. R. China
| | - Feiping Chen
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
| | - Mingqiang Ye
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
| | - Juan Yin
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
| | - Zheng Luo
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
| | - Yingwei Qi
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
| | - Minhui Chen
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
| | - Yulong Chen
- Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P. R. China
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Metabolomics integrated with transcriptomics: assessing the central metabolism of marine red yeast Sporobolomyces pararoseus under salinity stress. Arch Microbiol 2020; 203:889-899. [PMID: 33074377 DOI: 10.1007/s00203-020-02082-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 09/07/2020] [Accepted: 10/01/2020] [Indexed: 10/23/2022]
Abstract
Salinity stress is one of the most serious environmental issues in agricultural regions worldwide. Excess salinity inhibits root growth of various crops, and results in reductions of yield. It is of crucial to understand the molecular mechanisms mediating salinity stress responses for enhancing crops' salt tolerance. Marine red yeast Sporobolomyces pararoseus should have evolved some unique salt-tolerant mechanism, because they long-term live in high-salt ecosystems. However, little research has conducted so far by considering S. pararoseus as model microorganisms to study salt-tolerant mechanisms. Here, we successfully integrated metabolomics with transcriptomic profiles of S. pararoseus in response to salinity stress. Screening of metabolite features with untargeted metabolic profiling, we characterized 4862 compounds from the LC-MS/MS-based datasets. The integrated results showed that amino acid metabolism, carbohydrate metabolism, and lipid metabolism is significantly enriched in response to salt stress. Co-expression network analysis showed that 28 genes and 8 metabolites play an important role in the response of S. pararoseus, which provides valuable clues for subsequent validation. Together, the results provide valuable information for assessing the central metabolism of mediating salt responses in S. pararoseus and offer inventories of target genes for salt tolerance improvement via genetic engineering.
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