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Farooq S, Lone ML, Ul Haq A, Parveen S, Altaf F, Tahir I. Signalling cascades choreographing petal cell death: implications for postharvest quality. PLANT MOLECULAR BIOLOGY 2024; 114:63. [PMID: 38805152 DOI: 10.1007/s11103-024-01449-6] [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: 08/02/2023] [Accepted: 04/01/2024] [Indexed: 05/29/2024]
Abstract
Senescence is a multifaceted and dynamic developmental phase pivotal in the plant's lifecycle, exerting significant influence and involving intricate regulatory mechanisms marked by a variety of structural, biochemical and molecular alterations. Biochemical changes, including reactive oxygen species (ROS) generation, membrane deterioration, nucleic acid degradation and protein degradation, characterize flower senescence. The progression of senescence entails a meticulously orchestrated network of interconnected molecular mechanisms and signalling pathways, ensuring its synchronized and efficient execution. Within flowering plants, petal senescence emerges as a crucial aspect significantly impacting flower longevity and postharvest quality, emphasizing the pressing necessity of unravelling the underlying signalling cascades orchestrating this process. Understanding the complex signalling pathways regulating petal senescence holds paramount importance, not only shedding light on the broader phenomenon of plant senescence but also paving the way for the development of targeted strategies to enhance the postharvest longevity of cut flowers. Various signalling pathways participate in petal senescence, encompassing hormone signalling, calcium signalling, protein kinase signalling and ROS signalling. Among these, the ethylene signalling pathway is extensively studied, and the manipulation of genes associated with ethylene biosynthesis or signal transduction has demonstrated the potential to enhance flower longevity. A thorough understanding of these complex pathways is critical for effectively delaying flower senescence, thereby enhancing postharvest quality and ornamental value. Therefore, this review adopts a viewpoint that combines fundamental research into the molecular intricacies of senescence with a practical orientation towards developing strategies for improving the postharvest quality of cut flowers. The innovation of this review is to shed light on the pivotal signalling cascades underpinning flower senescence and offer insights into potential approaches for modulating these pathways to postpone petal senescence in ornamental plants.
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Affiliation(s)
- Sumira Farooq
- Plant Physiology and Biochemistry Research Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Mohammad Lateef Lone
- Plant Physiology and Biochemistry Research Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Aehsan Ul Haq
- Plant Physiology and Biochemistry Research Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Shazia Parveen
- Plant Physiology and Biochemistry Research Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Foziya Altaf
- Plant Physiology and Biochemistry Research Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Inayatullah Tahir
- Plant Physiology and Biochemistry Research Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India.
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Tian F, Wang J, Ding F, Wang L, Yang Y, Bai X, Tan C, Liao X. Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019. Front Microbiol 2024; 15:1358137. [PMID: 38562471 PMCID: PMC10982344 DOI: 10.3389/fmicb.2024.1358137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction Paphiopedilum barbigerum is currently the rarest and most endangered species of orchids in China and has significant ornamental value. The mature seeds of P. barbigerum are difficult to germinate owing to the absence of an endosperm and are highly dependent on mycorrhizal fungi for germination and subsequent development. However, little is known about the regulation mechanisms of symbiosis and symbiotic germination of P. barbigerum seeds. Methods Herein, transcriptomics and proteomics were used to explore the changes in the P. barbigerum seeds after inoculation with (FQXY019 treatment group) or without (control group) Epulorhiza sp. FQXY019 at 90 days after germination. Results Transcriptome sequencing revealed that a total of 10,961 differentially expressed genes (DEGs; 2,599 upregulated and 8,402 downregulated) were identified in the control and FQXY019 treatment groups. These DEGs were mainly involved in carbohydrate, fatty acid, and amino acid metabolism. Furthermore, the expression levels of candidate DEGs related to nodulin, Ca2+ signaling, and plant lectins were significantly affected in P. barbigerum in the FQXY019 treatment groups. Subsequently, tandem mass tag-based quantitative proteomics was performed to recognize the differentially expressed proteins (DEPs), and a total of 537 DEPs (220 upregulated and 317 downregulated) were identified that were enriched in processes including photosynthesis, photosynthesis-antenna proteins, and fatty acid biosynthesis and metabolism. Discussion This study provides novel insight on the mechanisms underlying the in vitro seed germination and protocorm development of P. barbigerum by using a compatible fungal symbiont and will benefit the reintroduction and mycorrhizal symbiotic germination of endangered orchids.
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Affiliation(s)
- Fan Tian
- Guizhou Academy of Forestry, Guiyang, Guizhou, China
- Key Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, China
| | - Juncai Wang
- Guizhou Academy of Sciences, Guiyang, Guizhou, China
| | - Fangjun Ding
- Guizhou Academy of Forestry, Guiyang, Guizhou, China
- Key Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, China
| | - Lianhui Wang
- Guizhou Academy of Forestry, Guiyang, Guizhou, China
- Key Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, China
| | - Yanbing Yang
- Guizhou Academy of Forestry, Guiyang, Guizhou, China
- Key Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, China
| | - Xinxiang Bai
- College of Forestry, Guizhou University, Guiyang, Guizhou, China
| | - Chengjiang Tan
- Guizhou Maolan National Nature Reserve Administration, Libo, Guizhou, China
| | - Xiaofeng Liao
- Guizhou Academy of Sciences, Guiyang, Guizhou, China
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Kaur G, Jhanji S. Plant growth regulators preserved the longevity of cut stems of Chrysanthemum morifolium by orchestrating physio-biochemical and anatomical responses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 196:1098-1110. [PMID: 36924551 DOI: 10.1016/j.plaphy.2023.02.044] [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: 10/06/2022] [Revised: 02/11/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
The marketability of cut flowers is determined by their postharvest quality parameters. Among these parameters, vase life is most crucial and different plant growth regulators (PGRs) play a significant role in regulating vase life. With the objective, to regulate vase life and other quality parameters of commercially important cut stems of chrysanthemum cv. White Star, a study was planned to have an insight into the role of different PGRs in orchestrating underlying physio-biochemical and anatomical responses. Three PGRs viz., Benzyl adenine (50, 100, 150 and 200 μM BA), Thidiazuron (5, 10, 15 and 20 μM TDZ) and Salicylic acid (50, 100, 150 and 200 μM SA) were used as pulsing solution. The results revealed that PGR especially 10 μM TDZ delayed leaf and floret senescence as compared to control. The visual observations (retention of green colour of leaves and white of florets) were correlated to enhanced water absorption, relative water content, membrane stability index, total soluble sugars and total soluble proteins ; higher content of chlorophyll in leaves and lower content of carotenoids and anthocyanins in florets. Further, the antioxidant enzymes (peroxidase and catalase) activities were also higher in PGR-treated stems than in control. These results were further supported by anatomical studies that indicated minimum blockage in xylem and maintenance in turgidity of cells as revealed through the size of tissues (radius of pith) of treated stems (control-118.48 mm and 10 μM TDZ-177.94 mm). Although all PGR concentrations significantly maintained relative water content, membrane stability index, respiratory substrates and antioxidant activity for a longer time, the low concentrations of TDZ had the most relevant impact on longevity. The longevity of stems treated with10 μM TDZ was up to 23 days as compared to 13 days in control. So 10 μM TDZ could be used as a chemical tool to improve chrysanthemum longevity and increase its commercial potential.
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Affiliation(s)
- Gurpreet Kaur
- Department of Botany, Punjab Agricultural University, Ludhiana, India
| | - Shalini Jhanji
- Department of Floriculture and Landscaping, Punjab Agricultural University, Ludhiana, India.
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Astigueta FH, Baigorria AH, García MN, Delfosse VC, González SA, Pérez de la Torre MC, Moschen S, Lia VV, Heinz RA, Fernández P, Trupkin SA. Characterization and expression analysis of WRKY genes during leaf and corolla senescence of Petunia hybrida plants. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:1765-1784. [PMID: 36387973 PMCID: PMC9636358 DOI: 10.1007/s12298-022-01243-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Several families of transcription factors (TFs) control the progression of senescence. Many key TFs belonging to the WRKY family have been described to play crucial roles in the regulation of leaf senescence, mainly in Arabidopsis thaliana. However, little is known about senescence-associated WRKY members in floricultural species. Delay of senescence in leaves and petals of Petunia hybrida, a worldwide ornamental crop are highly appreciated traits. In this work, starting from 28 differentially expressed WRKY genes of A. thaliana during the progression of leaf senescence, we identified the orthologous in P. hybrida and explored the expression profiles of 20 PhWRKY genes during the progression of natural (age-related) leaf and corolla senescence as well as in the corollas of flowers undergoing pollination-induced senescence. Simultaneous visualization showed consistent and similar expression profiles of PhWRKYs during natural leaf and corolla senescence, although weak expression changes were observed during pollination-induced senescence. Comparable expression trends between PhWRKYs and the corresponding genes of A. thaliana were observed during leaf senescence, although more divergence was found in petals of pollinated petunia flowers. Integration of expression data with phylogenetics, conserved motif and cis-regulatory element analyses were used to establish a list of candidates that could regulate more than one senescence process. Our results suggest that several members of the WRKY family of TFs are tightly linked to the regulation of senescence in P. hybrida. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-022-01243-y.
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Affiliation(s)
- Francisco H. Astigueta
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
- Escuela de Ciencia Y Tecnología, Universidad Nacional de San Martín, 1650 San Martín, Buenos Aires Argentina
| | - Amilcar H. Baigorria
- Escuela de Ciencia Y Tecnología, Universidad Nacional de San Martín, 1650 San Martín, Buenos Aires Argentina
| | - Martín N. García
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), Centro de Investigaciones en Ciencias Agronómicas Y Veterinarias, Instituto Nacional de Tecnología Agropecuaria, 1686 Hurlingham, Buenos Aires Argentina
| | - Verónica C. Delfosse
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
- Escuela de Ciencia Y Tecnología, Universidad Nacional de San Martín, 1650 San Martín, Buenos Aires Argentina
| | - Sergio A. González
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
| | - Mariana C. Pérez de la Torre
- Instituto de Floricultura, Centro de Investigación de Recursos Naturales, Instituto Nacional de Tecnología Agropecuaria, 1686 Hurlingham, Buenos Aires Argentina
| | - Sebastián Moschen
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
- Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Agropecuaria Famaillá, 4142 Tucumán, Argentina
| | - Verónica V. Lia
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), Centro de Investigaciones en Ciencias Agronómicas Y Veterinarias, Instituto Nacional de Tecnología Agropecuaria, 1686 Hurlingham, Buenos Aires Argentina
- Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
| | - Ruth A. Heinz
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), Centro de Investigaciones en Ciencias Agronómicas Y Veterinarias, Instituto Nacional de Tecnología Agropecuaria, 1686 Hurlingham, Buenos Aires Argentina
| | - Paula Fernández
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
- Escuela de Ciencia Y Tecnología, Universidad Nacional de San Martín, 1650 San Martín, Buenos Aires Argentina
- Instituto de Agrobiotecnología y Biología Molecular (INTA-CONICET), Centro de Investigaciones en Ciencias Agronómicas Y Veterinarias, Instituto Nacional de Tecnología Agropecuaria, 1686 Hurlingham, Buenos Aires Argentina
| | - Santiago A. Trupkin
- Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de
Buenos Aires, 1425 Buenos Aires, Argentina
- Instituto de Floricultura, Centro de Investigación de Recursos Naturales, Instituto Nacional de Tecnología Agropecuaria, 1686 Hurlingham, Buenos Aires Argentina
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Chen Y, Xu Z, Shen Q, Sun C. Floral organ-specific proteome profiling of the floral ornamental orchid (Cymbidium goeringii) reveals candidate proteins related to floral organ development. BOTANICAL STUDIES 2021; 62:23. [PMID: 34921643 PMCID: PMC8684572 DOI: 10.1186/s40529-021-00330-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/30/2021] [Indexed: 05/20/2023]
Abstract
BACKGROUND Cymbidium goeringii, belonging to the Orchidaceae family, is an important ornamental plant with striking petals and lips. Extremely diversified floral patterns and morphologies make C. goeringii good research material to examine floral development of orchids. However, no floral organ-specific protein has been identified yet. To screen floral development associated proteins, four proteomes from petal (PE), lip (LI), gynostemium (GY), and sepal (SE) were analyzed using Tandem Mass Tag-based proteomic analysis. RESULTS A total of 6626 unique peptides encoding 2331 proteins were identified in our study. Proteins in several primary metabolic pathways, including amino acid metabolism, energy metabolism, and lipid metabolism, were identified as differentially expressed proteins. Interestingly, most of the energy metabolism-related proteins highly expressed in SE, indicating that SE is an important photosynthetic organ of C. goeringii flower. Furthermore, a number of phytohormone-related proteins and transcription factors (TFs) were identified in C. goeringii flowers. Expression analysis showed that 1-aminocyclopropane-1-carboxylate oxidase highly expressed in GY, IAA-amino acid hydrolase ILR1-like 4 and gibberellin receptor 1 C greatly expressed in LI, and auxin-binding protein ABP20 significantly expressed in SE, suggesting a significant role of hormones in the regulation of flower morphogenesis and development. For TFs, GY-highly expressed bHLH13, PE-highly expressed WRKY33, and GY-highly expressed VIP1, were identified. CONCLUSIONS Mining of floral organ differential expressed enzymes and TFs helps us to excavate candidate proteins related to floral organ development and to accelerate the breeding of Cymbidium plants.
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Affiliation(s)
- Yue Chen
- Institute of Horticulture, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, China
| | - Zihan Xu
- College of Landscape and Architecture, Nanjing Forestry University, Nanjing, Jiangsu, China
| | - Qi Shen
- Plant Protection and Microbiology, Zhejiang Academy of Agricultural Science, Hangzhou, Zhejiang, China
| | - Chongbo Sun
- Institute of Horticulture, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, China.
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Chen WH, Jiang ZY, Hsu HF, Yang CH. Silencing of FOREVER YOUNG FLOWER-Like Genes from Phalaenopsis Orchids Promotes Flower Senescence and Abscission. PLANT & CELL PHYSIOLOGY 2021; 62:111-124. [PMID: 33237274 DOI: 10.1093/pcp/pcaa145] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 11/10/2020] [Indexed: 06/11/2023]
Abstract
Ectopic expression of FOREVER YOUNG FLOWER (FYF) delays floral senescence and abscission in transgenic Arabidopsis. To analyze the FYF function in Phalaenopsis orchids, two FYF-like genes (PaFYF1/2) were identified. PaFYF1/2 were highly expressed in young Phalaenopsis flowers, and their expression decreased significantly afterward until flower senescence. This pattern was strongly correlated with the process of flower senescence and revealed that PaFYF1/2 function to suppress senescence/abscission during early flower development. Interestingly, in flowers, PaFYF1 was consistently expressed less in petals than in lips/sepals, whereas PaFYF2 was expressed relatively evenly in all flower organs. This difference suggests a regulatory modification of the functions of PaFYF1 and PaFYF2 during Phalaenopsis flower evolution. Delayed flower senescence and abscission, which were unaffected by ethylene treatment, were observed in 35S::PaFYF1/2 and 35S::PaFYF1/2 + SRDX transgenic Arabidopsis plants due to the downregulation of the ethylene signaling and abscission-associated genes EDF1-4, IDA and BOP1/2. These results suggest a possible repressor role for Phalaenopsis PaFYF1/2 in controlling floral senescence/abscission by suppressing ethylene signaling and abscission-associated genes. To further validate the function of PaFYF1/2, PaFYF1/2-VIGS (virus-induced gene silencing) Phalaenopsis were generated and analyzed. Promotion of senescence and abscission was observed in PaFYF1/2-VIGS Phalaenopsis flowers by the upregulation of PeEDF1/2, PeSAG39 and PeBOP1/2 expression, the early occurrence of greening according to their increased chlorophyll content and the reduction in water content in flower organs. Our results support that PaFYF1/2 function as transcriptional repressors to prohibit flower senescence and abscission in Phalaenopsis.
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Affiliation(s)
- Wei-Han Chen
- Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
| | - Zhi-Yi Jiang
- Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
| | - Hsing-Fun Hsu
- Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
| | - Chang-Hsien Yang
- Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
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Bragança GPP, Alencar CF, Freitas MSC, Isaias RMS. Hemicelluloses and associated compounds determine gall functional traits. PLANT BIOLOGY (STUTTGART, GERMANY) 2020; 22:981-991. [PMID: 32597563 DOI: 10.1111/plb.13151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
The intriguing questions concerning gall development refer to the processes of the remodelling of the host plant organ. Such processes involve the restructuring of cell walls and can be influenced by phenolics, indole-3-acetic acid (IAA) and reactive oxygen species (ROS). Alterations in cell walls demand the interference in the coupling of cellulose fibrils and hemicelluloses (xyloglucans) at specific stages of gall development. In addition to cell wall remodelling, hemicelluloses, such as the, xyloglucans and heteromannans can act as reserve carbohydrates, while xylans provide rigidity to the secondary cell walls. Developmental traits of the lenticular, fusiform and globoid galls on Inga ingoides (Fabaceae) were analysed using anatomical, cytometric, histochemical and immunocytochemical tools. Phenolics, IAA and ROS accumulated in similar gall tissue compartments, and may have influenced the restructuring of hemicelluloses and pectins. Contrary to expectations, cell wall flexibility regarding the dynamics of xyloglucans and cellulose fibrils does not relate to a temporal scale. The detection of xyloglucans in nutritive cell walls relate to carbohydrate nutritional resources to the galling insect, while xylans were associated to the lignified cell walls. Heteromanans were not detected, either in non-galled or galled tissues. The patterns of cell expansion during gall development relied on the relationship among phenolics, ROS and IAA with the hemicelluloses (xyloglucans and xylans) and cellulose fibrils. Although cell wall dynamics is specific to each gall morphotype in I. ingoides, the xyloglucans function as carbohydrate reserve to the gall inducers, which constitutes a functional trait common to the three morphotypes.
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Affiliation(s)
- G P P Bragança
- Departamento de Botânica, Laboratório de Anatomia Vegetal, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - C F Alencar
- Departamento de Botânica, Laboratório de Anatomia Vegetal, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - M S C Freitas
- Departamento de Botânica, Laboratório de Anatomia Vegetal, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - R M S Isaias
- Departamento de Botânica, Laboratório de Anatomia Vegetal, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Wu S, Guo Y, Joan HI, Tu Y, Adil MF, Sehar S, Zhao D, Shamsi IH. iTRAQ-based comparative proteomic analysis reveals high temperature accelerated leaf senescence of tobacco (Nicotiana tabacum L.) during flue-curing. Genomics 2020; 112:3075-3088. [PMID: 32454168 DOI: 10.1016/j.ygeno.2020.05.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/17/2020] [Accepted: 05/20/2020] [Indexed: 11/25/2022]
Abstract
Tobacco (Nicotiana tabacum) is extensively cultivated all over the world for its economic value. During curing and storage, senescence occurs, which is associated with physiological and biochemical changes in postharvest plant organs. However, the molecular mechanisms involved in accelerated senescence due to high temperatures in tobacco leaves during curing need further elaboration. We studied molecular mechanisms of senescence in tobacco leaves exposed to high temperature during curing (Fresh, 38 °C and 42 °C), revealed by isobaric tags for relative and absolute quantification (iTRAQ) for the proteomic profiles of cultivar Bi'na1. In total, 8903 proteins were identified, and 2034 (1150 up-regulated and 1074 down-regulated) differentially abundant proteins (DAPs) were obtained from tobacco leaf samples. These DAPs were mainly involved in posttranslational modification, protein turnover, energy production and conversion. Sugar- and energy-related metabolic biological processes and pathways might be critical regulators of tobacco leaves exposed to high temperature during senescence. High-temperature stress accelerated tobacco leaf senescence mainly by down-regulating photosynthesis-related pathways and degrading cellular constituents to maintain cell viability and nutrient recycling. Our findings provide a valuable inventory of novel proteins involved in senescence physiology and elucidate the protein regulatory network in postharvest organs exposed to high temperatures during flue-curing.
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Affiliation(s)
- Shengjiang Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang 550025, PR China; Guizhou Academy of Tobacco Science, Key Laboratory of Molecular Genetics/Upland Flue-cured Tobacco Quality and Ecology Key Laboratory, CNTC, Guiyang 550081, PR China
| | - Yushuang Guo
- Guizhou Academy of Tobacco Science, Key Laboratory of Molecular Genetics/Upland Flue-cured Tobacco Quality and Ecology Key Laboratory, CNTC, Guiyang 550081, PR China
| | - Heren Issaka Joan
- Department of Agronomy, College of Agriculture and Biotechnology, Key Laboratory of Crop Germplasm Resource, Zhejiang University, Hangzhou 310058, PR China
| | - Yonggao Tu
- Guizhou Academy of Tobacco Science, Key Laboratory of Molecular Genetics/Upland Flue-cured Tobacco Quality and Ecology Key Laboratory, CNTC, Guiyang 550081, PR China
| | - Muhammad Faheem Adil
- Department of Agronomy, College of Agriculture and Biotechnology, Key Laboratory of Crop Germplasm Resource, Zhejiang University, Hangzhou 310058, PR China
| | - Shafaque Sehar
- Department of Agronomy, College of Agriculture and Biotechnology, Key Laboratory of Crop Germplasm Resource, Zhejiang University, Hangzhou 310058, PR China
| | - Degang Zhao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang 550025, PR China; Guizhou Academy of Agricultural Sciences, Guiyang 550006, PR China.
| | - Imran Haider Shamsi
- Department of Agronomy, College of Agriculture and Biotechnology, Key Laboratory of Crop Germplasm Resource, Zhejiang University, Hangzhou 310058, PR China.
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Wu S, Cao G, Adil MF, Tu Y, Wang W, Cai B, Zhao D, Shamsi IH. Changes in water loss and cell wall metabolism during postharvest withering of tobacco (Nicotiana tabacum L.) leaves using tandem mass tag-based quantitative proteomics approach. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 150:121-132. [PMID: 32142985 DOI: 10.1016/j.plaphy.2020.02.040] [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: 12/25/2019] [Revised: 02/11/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
Withering is an important biological process accompanied by dehydration and cell wall metabolism in postharvest plant organs during curing/processing and storage. However, dynamics involved in cell wall metabolism and resultant water loss during withering in postharvest tobacco leaves is not well-documented. Here, tandem mass tag (TMT)-based quantitative proteomic analysis in postharvest tobacco leaves (cultivar K326) under different withering conditions was performed. In total, 11,556 proteins were detected, among which 496 differentially abundant proteins (DAPs) were identified. To elucidate the withering mechanism of tobacco leaves, 27 DAPs associated with cell wall metabolism were screened. In particular, pectin acetylesterases, glucan endo-1,3-beta-glucosidases, xyloglucan endotransglucosylase/hydrolase, alpha-xylosidase 1-like, probable galactinol-sucrose galactosyltransferases, endochitinase A, chitotriosidase-1-like and expansin were the key proteins responsible for the withering of postharvest tobacco leaves. These DAPs were mainly involved in pectin metabolism, cellulose, hemicellulose and galactose metabolism, amino sugar and nucleotide sugar metabolism as well as cell wall expansion. Furthermore, relative water content and softness values were significantly and positively correlated. Thus, dehydration and cell wall metabolism were crucial for tobacco leaf withering under different conditions. Nine candidate DAPs were confirmed by parallel reaction monitoring (PRM) technique. These results provide new insights into the withering mechanism underlying postharvest physiological regulatory networks in plants/crops.
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Affiliation(s)
- Shengjiang Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Center for Research & Development of Fine Chemicals, The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, 550025, PR China; Guizhou Academy of Tobacco Science, Guiyang, 550081, PR China
| | - Gaoyi Cao
- College of Agronomy & Resources and Environment, Tianjin Agricultural University, Tianjin, 300384, PR China
| | - Muhammad Faheem Adil
- Department of Agronomy, College of Agriculture and Biotechnology, Key Laboratory of Crop Germplasm Resource, Zhejiang University, Hangzhou, 310058, PR China
| | - Yonggao Tu
- Guizhou Academy of Tobacco Science, Guiyang, 550081, PR China
| | - Wei Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Center for Research & Development of Fine Chemicals, The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, 550025, PR China; Guizhou Academy of Agricultural Sciences, Guiyang, 550006, PR China
| | - Bin Cai
- Hainan Cigar Research Institute, Hainan Provincial Branch of China National Tobacco Corporation, Haikou, 571100, PR China
| | - Degang Zhao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Center for Research & Development of Fine Chemicals, The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, 550025, PR China; Guizhou Academy of Agricultural Sciences, Guiyang, 550006, PR China.
| | - Imran Haider Shamsi
- Department of Agronomy, College of Agriculture and Biotechnology, Key Laboratory of Crop Germplasm Resource, Zhejiang University, Hangzhou, 310058, PR China.
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Joly V, Tebbji F, Nantel A, Matton DP. Pollination Type Recognition from a Distance by the Ovary Is Revealed Through a Global Transcriptomic Analysis. PLANTS (BASEL, SWITZERLAND) 2019; 8:E185. [PMID: 31238522 PMCID: PMC6630372 DOI: 10.3390/plants8060185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/09/2019] [Accepted: 06/12/2019] [Indexed: 02/06/2023]
Abstract
Sexual reproduction in flowering plants involves intimate contact and continuous interactions between the growing pollen tube and the female reproductive structures. These interactions can trigger responses in distal regions of the flower well ahead of fertilization. While pollination-induced petal senescence has been studied extensively, less is known about how pollination is perceived at a distance in the ovary, and how specific this response is to various pollen genotypes. To address this question, we performed a global transcriptomic analysis in the ovary of a wild potato species, Solanum chacoense, at various time points following compatible, incompatible, and heterospecific pollinations. In all cases, pollen tube penetration in the stigma was initially perceived as a wounding aggression. Then, as the pollen tubes grew in the style, a growing number of genes became specific to each pollen genotype. Functional classification analyses revealed sharp differences in the response to compatible and heterospecific pollinations. For instance, the former induced reactive oxygen species (ROS)-related genes while the latter affected genes associated to ethylene signaling. In contrast, incompatible pollination remained more akin to a wound response. Our analysis reveals that every pollination type produces a specific molecular signature generating diversified and specific responses at a distance in the ovary in preparation for fertilization.
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Affiliation(s)
- Valentin Joly
- Institut de Recherche en Biologie Végétale, Université de Montréal, Montréal, QC H1X 2B2, Canada.
| | - Faïza Tebbji
- CRCHU de Québec, Université Laval, Québec, QC G1V 4G2, Canada.
| | - André Nantel
- National Research Council Canada, Montréal, QC H4P 2R2, Canada.
| | - Daniel P Matton
- Institut de Recherche en Biologie Végétale, Université de Montréal, Montréal, QC H1X 2B2, Canada.
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11
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Komatsu S. Plant Proteomic Research 2.0: Trends and Perspectives. Int J Mol Sci 2019; 20:ijms20102495. [PMID: 31117165 PMCID: PMC6566193 DOI: 10.3390/ijms20102495] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 05/20/2019] [Indexed: 02/07/2023] Open
Affiliation(s)
- Setsuko Komatsu
- Faculty of Environmental and Information Sciences, Fukui University of Technology, Fukui 910-8505, Japan.
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