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Li Y, Zheng L, Mustafa G, Shao Z, Liu H, Li Y, Wang Y, Liu L, Xu C, Wang T, Zheng J, Meng F, Wang Q. Enhancing post-harvest quality of tomato fruits with chitosan oligosaccharide-zinc oxide nanocomposites: A study on biocompatibility, quality improvement, and carotenoid enhancement. Food Chem 2024; 454:139685. [PMID: 38795629 DOI: 10.1016/j.foodchem.2024.139685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 05/12/2024] [Accepted: 05/13/2024] [Indexed: 05/28/2024]
Abstract
In this study, a new composite with combination of chitosan oligosaccharide (COS) and zinc oxide nanoparticles (ZnO NPs), termed Chitosan Oligosaccharide-Zinc Oxide Nanocomposites (COS-ZnO NC), was designed to enhance the quality of tomato fruits during postharvest storage. SEM analysis showed a uniform distribution of COS-ZnO NC films on tomato surfaces, indicating high biocompatibility, while the FTIR spectrum confirmed the interaction of COS and ZnO NPs via hydrogen bonds. The COS-ZnO NC exerts positive effects on post-harvest quality of tomato fruits, including significantly reduced water loss, fewer skin wrinkles, increased sugar-acid ratio, and enhanced vitamin C and carotenoids accumulation. Furthermore, COS-ZnO NC induces transcription of carotenoid biosynthesis genes and promotes carotenoids storage in the chromoplast. These results suggest that the COS-ZnO NC film can significantly improve the quality traits of tomato fruits, and therefore is potential in post-harvest storage of tomato fruits.
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Affiliation(s)
- Yuanyuan Li
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China
| | - Lingjie Zheng
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China
| | - Ghazala Mustafa
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China; Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Zhiyong Shao
- Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
| | - Haoran Liu
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China
| | - Yuening Li
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China
| | - Yibo Wang
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China
| | - Lihong Liu
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China
| | - Chenyu Xu
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China
| | - Tonglin Wang
- Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
| | - Jirong Zheng
- Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, China
| | - Fanliang Meng
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China
| | - Qiaomei Wang
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, PR China.
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2
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Nie Y, Wang H, Zhang G, Ding H, Han B, Liu L, Shi J, Du J, Li X, Li X, Zhao Y, Zhang X, Liu C, Weng J, Li X, Zhang X, Zhao X, Pan G, Jackson D, Li QB, Stinard PS, Arp J, Sachs MM, Moose S, Hunter CT, Wu Q, Zhang Z. The maize PLASTID TERMINAL OXIDASE (PTOX) locus controls the carotenoid content of kernels. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:457-468. [PMID: 38198228 DOI: 10.1111/tpj.16618] [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: 03/20/2023] [Revised: 12/16/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024]
Abstract
Carotenoids perform a broad range of important functions in humans; therefore, carotenoid biofortification of maize (Zea mays L.), one of the most highly produced cereal crops worldwide, would have a global impact on human health. PLASTID TERMINAL OXIDASE (PTOX) genes play an important role in carotenoid metabolism; however, the possible function of PTOX in carotenoid biosynthesis in maize has not yet been explored. In this study, we characterized the maize PTOX locus by forward- and reverse-genetic analyses. While most higher plant species possess a single copy of the PTOX gene, maize carries two tandemly duplicated copies. Characterization of mutants revealed that disruption of either copy resulted in a carotenoid-deficient phenotype. We identified mutations in the PTOX genes as being causal of the classic maize mutant, albescent1. Remarkably, overexpression of ZmPTOX1 significantly improved the content of carotenoids, especially β-carotene (provitamin A), which was increased by ~threefold, in maize kernels. Overall, our study shows that maize PTOX locus plays an important role in carotenoid biosynthesis in maize kernels and suggests that fine-tuning the expression of this gene could improve the nutritional value of cereal grains.
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Affiliation(s)
- Yongxin Nie
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Hui Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guan Zhang
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, the Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Haiping Ding
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Beibei Han
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, the Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lei Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jian Shi
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jiyuan Du
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Xiaohu Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Xinzheng Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Yajie Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Xiaocong Zhang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Changlin Liu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jianfeng Weng
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xinhai Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiansheng Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Xiangyu Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Guangtang Pan
- Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - David Jackson
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, 11724, USA
| | - Qin-Bao Li
- USDA-ARS, Chemistry Research Unit, Gainesville, Florida, 32608, USA
| | - Philip S Stinard
- USDA-ARS, Maize Genetics Cooperation Stock Center, Urbana, Illinois, 61801, USA
| | - Jennifer Arp
- University of Illinois at Urbana-Champaign, Department of Crop Sciences, Urbana, Illinois, 61801, USA
- Bayer Crop Science 700 Chesterfield Parkway West, Chesterfield, Missouri, 63017, USA
| | - Martin M Sachs
- USDA-ARS, Maize Genetics Cooperation Stock Center, Urbana, Illinois, 61801, USA
- University of Illinois at Urbana-Champaign, Department of Crop Sciences, Urbana, Illinois, 61801, USA
| | - Steven Moose
- University of Illinois at Urbana-Champaign, Department of Crop Sciences, Urbana, Illinois, 61801, USA
| | - Charles T Hunter
- USDA-ARS, Chemistry Research Unit, Gainesville, Florida, 32608, USA
| | - Qingyu Wu
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, the Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhiming Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
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Li C, Jiang R, Wang X, Lv Z, Li W, Chen W. Feedback regulation of plant secondary metabolism: Applications and challenges. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 340:111983. [PMID: 38211735 DOI: 10.1016/j.plantsci.2024.111983] [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: 09/14/2023] [Revised: 12/04/2023] [Accepted: 01/07/2024] [Indexed: 01/13/2024]
Abstract
Plant secondary metabolites offer resistance to invasion by herbivorous organisms, and are also useful in the chemical, pharmaceutical, cosmetic, and fragrance industries. There are numerous approaches to enhancing secondary metabolite yields. However, a growing number of studies has indicated that feedback regulation may be critical in regulating secondary metabolite biosynthesis. Here, we review examples of feedback regulation in secondary metabolite biosynthesis pathways, phytohormone signal transduction, and complex deposition sites associated with secondary metabolite biosynthesis. We propose a new strategy to enhance secondary metabolite production based on plant feedback regulation. We also discuss challenges in feedback regulation that must be overcome before its application to enhancing secondary metabolite yields. This review discusses recent advances in the field and highlights a strategy to overcome feedback regulation-related obstacles and obtain high secondary metabolite yields.
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Affiliation(s)
- Chuhan Li
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Rui Jiang
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xingxing Wang
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zongyou Lv
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Wankui Li
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Wansheng Chen
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
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4
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Wang YH, Zhang YQ, Zhang RR, Zhuang FY, Liu H, Xu ZS, Xiong AS. Lycopene ε-cyclase mediated transition of α-carotene and β-carotene metabolic flow in carrot fleshy root. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:986-1003. [PMID: 37158657 DOI: 10.1111/tpj.16275] [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: 09/01/2022] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/10/2023]
Abstract
The accumulation of carotenoids, such as xanthophylls, lycopene, and carotenes, is responsible for the color of carrot (Daucus carota subsp. sativus) fleshy roots. The potential role of DcLCYE, encoding a lycopene ε-cyclase associated with carrot root color, was investigated using cultivars with orange and red roots. The expression of DcLCYE in red carrot varieties was significantly lower than that in orange carrots at the mature stage. Furthermore, red carrots accumulated larger amounts of lycopene and lower levels of α-carotene. Sequence comparison and prokaryotic expression analysis revealed that amino acid differences in red carrots did not affect the cyclization function of DcLCYE. Analysis of the catalytic activity of DcLCYE revealed that it mainly formed ε-carotene, while a side activity on α-carotene and γ-carotene was also observed. Comparative analysis of the promoter region sequences indicated that differences in the promoter region may affect the transcription of DcLCYE. DcLCYE was overexpressed in the red carrot 'Benhongjinshi' under the control of the CaMV35S promoter. Lycopene in transgenic carrot roots was cyclized, resulting in the accumulation of higher levels of α-carotene and xanthophylls, while the β-carotene content was significantly decreased. The expression levels of other genes in the carotenoid pathway were simultaneously upregulated. Knockout of DcLCYE in the orange carrot 'Kurodagosun' by CRISPR/Cas9 technology resulted in a decrease in the α-carotene and xanthophyll contents. The relative expression levels of DcPSY1, DcPSY2, and DcCHXE were sharply increased in DcLCYE knockout mutants. The results of this study provide insights into the function of DcLCYE in carrots, which could serve as a basis for creating colorful carrot germplasms.
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Affiliation(s)
- Ya-Hui Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Yu-Qing Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Rong-Rong Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Fei-Yun Zhuang
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation, Ministry of Agriculture and Rural Affairs, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Hui Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Zhi-Sheng Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
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5
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Hao DL, Zhou JY, Huang YN, Wang HR, Li XH, Guo HL, Liu JX. Roles of plastid-located phosphate transporters in carotenoid accumulation. FRONTIERS IN PLANT SCIENCE 2022; 13:1059536. [PMID: 36589064 PMCID: PMC9798012 DOI: 10.3389/fpls.2022.1059536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Enhanced carotenoid accumulation in plants is crucial for the nutritional and health demands of the human body since these beneficial substances are acquired through dietary intake. Plastids are the major organelles to accumulate carotenoids in plants and it is reported that manipulation of a single plastid phosphate transporter gene enhances carotenoid accumulation. Amongst all phosphate transport proteins including phosphate transporters (PHTs), plastidial phosphate translocators (pPTs), PHOSPHATE1 (PHO1), vacuolar phosphate efflux transporter (VPE), and Sulfate transporter [SULTR]-like phosphorus distribution transporter (SPDT) in plants, plastidic PHTs (PHT2 & PHT4) are found as the only clade that is plastid located, and manipulation of which affects carotenoid accumulation. Manipulation of a single chromoplast PHT (PHT4;2) enhances carotenoid accumulation, whereas manipulation of a single chloroplast PHT has no impact on carotenoid accumulation. The underlying mechanism is mainly attributed to their different effects on plastid orthophosphate (Pi) concentration. PHT4;2 is the only chromoplast Pi efflux transporter, and manipulating this single chromoplast PHT significantly regulates chromoplast Pi concentration. This variation subsequently modulates the carotenoid accumulation by affecting the supply of glyceraldehyde 3-phosphate, a substrate for carotenoid biosynthesis, by modulating the transcript abundances of carotenoid biosynthesis limited enzyme genes, and by regulating chromoplast biogenesis (facilitating carotenoid storage). However, at least five orthophosphate influx PHTs are identified in the chloroplast, and manipulating one of the five does not substantially modulate the chloroplast Pi concentration in a long term due to their functional redundancy. This stable chloroplast Pi concentration upon one chloroplast PHT absence, therefore, is unable to modulate Pi-involved carotenoid accumulation processes and finally does affect carotenoid accumulation in photosynthetic tissues. Despite these advances, several cases including the precise location of plastid PHTs, the phosphate transport direction mediated by these plastid PHTs, the plastid PHTs participating in carotenoid accumulation signal pathway, the potential roles of these plastid PHTs in leaf carotenoid accumulation, and the roles of these plastid PHTs in other secondary metabolites are waiting for further research. The clarification of the above-mentioned cases is beneficial for breeding high-carotenoid accumulation plants (either in photosynthetic or non-photosynthetic edible parts of plants) through the gene engineering of these transporters.
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Affiliation(s)
- Dong-Li Hao
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Jin-Yan Zhou
- Department of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forest, Jurong, China
| | - Ya-Nan Huang
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Hao-Ran Wang
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Xiao-Hui Li
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Hai-Lin Guo
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Jian-Xiu Liu
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
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6
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Li Y, Jian Y, Mao Y, Meng F, Shao Z, Wang T, Zheng J, Wang Q, Liu L. "Omics" insights into plastid behavior toward improved carotenoid accumulation. FRONTIERS IN PLANT SCIENCE 2022; 13:1001756. [PMID: 36275568 PMCID: PMC9583013 DOI: 10.3389/fpls.2022.1001756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Plastids are a group of diverse organelles with conserved carotenoids synthesizing and sequestering functions in plants. They optimize the carotenoid composition and content in response to developmental transitions and environmental stimuli. In this review, we describe the turbulence and reforming of transcripts, proteins, and metabolic pathways for carotenoid metabolism and storage in various plastid types upon organogenesis and external influences, which have been studied using approaches including genomics, transcriptomics, proteomics, and metabonomics. Meanwhile, the coordination of plastid signaling and carotenoid metabolism including the effects of disturbed carotenoid biosynthesis on plastid morphology and function are also discussed. The "omics" insight extends our understanding of the interaction between plastids and carotenoids and provides significant implications for designing strategies for carotenoid-biofortified crops.
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Affiliation(s)
- Yuanyuan Li
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, China
| | - Yue Jian
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, China
| | - Yuanyu Mao
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, China
| | - Fanliang Meng
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, China
| | - Zhiyong Shao
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, China
| | - Tonglin Wang
- Hangzhou Academy of Agricultural Sciences, Hangzhou, China
| | - Jirong Zheng
- Hangzhou Academy of Agricultural Sciences, Hangzhou, China
| | - Qiaomei Wang
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, China
| | - Lihong Liu
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, China
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Ampomah-Dwamena C, Tomes S, Thrimawithana AH, Elborough C, Bhargava N, Rebstock R, Sutherland P, Ireland H, Allan AC, Espley RV. Overexpression of PSY1 increases fruit skin and flesh carotenoid content and reveals associated transcription factors in apple ( Malus × domestica). FRONTIERS IN PLANT SCIENCE 2022; 13:967143. [PMID: 36186009 PMCID: PMC9520574 DOI: 10.3389/fpls.2022.967143] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 07/29/2022] [Indexed: 06/16/2023]
Abstract
Knowledge of the transcriptional regulation of the carotenoid metabolic pathway is still emerging and here, we have misexpressed a key biosynthetic gene in apple to highlight potential transcriptional regulators of this pathway. We overexpressed phytoene synthase (PSY1), which controls the key rate-limiting biosynthetic step, in apple and analyzed its effects in transgenic fruit skin and flesh using two approaches. Firstly, the effects of PSY overexpression on carotenoid accumulation and gene expression was assessed in fruit at different development stages. Secondly, the effect of light exclusion on PSY1-induced fruit carotenoid accumulation was examined. PSY1 overexpression increased carotenoid content in transgenic fruit skin and flesh, with beta-carotene being the most prevalent carotenoid compound. Light exclusion by fruit bagging reduced carotenoid content overall, but carotenoid content was still higher in bagged PSY fruit than in bagged controls. In tissues overexpressing PSY1, plastids showed accelerated chloroplast to chromoplast transition as well as high fluorescence intensity, consistent with increased number of chromoplasts and carotenoid accumulation. Surprisingly, the expression of other carotenoid pathway genes was elevated in PSY fruit, suggesting a feed-forward regulation of carotenogenesis when this enzyme step is mis-expressed. Transcriptome profiling of fruit flesh identified differentially expressed transcription factors (TFs) that also were co-expressed with carotenoid pathway genes. A comparison of differentially expressed genes from both the developmental series and light exclusion treatment revealed six candidate TFs exhibiting strong correlation with carotenoid accumulation. This combination of physiological, transcriptomic and metabolite data sheds new light on plant carotenogenesis and TFs that may play a role in regulating apple carotenoid biosynthesis.
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Affiliation(s)
| | - Sumathi Tomes
- The New Zealand Institute for Plant and Food Research Ltd., Auckland, New Zealand
| | | | - Caitlin Elborough
- The New Zealand Institute for Plant and Food Research Ltd., Auckland, New Zealand
- BioLumic Limited, Palmerston North, New Zealand
| | - Nitisha Bhargava
- The New Zealand Institute for Plant and Food Research Ltd., Auckland, New Zealand
| | - Ria Rebstock
- The New Zealand Institute for Plant and Food Research Ltd., Auckland, New Zealand
| | - Paul Sutherland
- The New Zealand Institute for Plant and Food Research Ltd., Auckland, New Zealand
| | - Hilary Ireland
- The New Zealand Institute for Plant and Food Research Ltd., Auckland, New Zealand
| | - Andrew C. Allan
- The New Zealand Institute for Plant and Food Research Ltd., Auckland, New Zealand
| | - Richard V. Espley
- The New Zealand Institute for Plant and Food Research Ltd., Auckland, New Zealand
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8
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Gonda I, Milavski R, Adler C, Abu-Abied M, Tal O, Faigenboim A, Chaimovitsh D, Dudai N. Genome-based high-resolution mapping of fusarium wilt resistance in sweet basil. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 321:111316. [PMID: 35696916 DOI: 10.1016/j.plantsci.2022.111316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/05/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
Fusarium wilt of basil is a disease of sweet basil (Ocimum basilicum L.) plants caused by the fungus Fusarium oxysporum f. sp. basilici (FOB). Although resistant cultivars were released > 20 years ago, the underlying mechanism and the genes controlling the resistance remain unknown. We used genetic mapping to elucidate FOB resistance in an F2 population derived from a cross between resistant and susceptible cultivars. We performed genotyping by sequencing of 173 offspring and aligning the data to the sweet basil reference genome. In total, 23,411 polymorphic sites were detected, and a single quantitative trait locus (QTL) for FOB resistance was found. The confidence interval was < 600 kbp, harboring only 60 genes, including a cluster of putative disease-resistance genes. Based on homology to a fusarium resistance protein from wild tomato, we also investigated a candidate resistance gene that encodes a transmembrane leucine-rich repeat - receptor-like kinase - ubiquitin-like protease (LRR-RLK-ULP). Sequence analysis of that gene in the susceptible parent vs. the resistant parent revealed multiple indels, including an insertion of 20 amino acids next to the transmembrane domain, which might alter its functionality. Our findings suggest that this LRR-RLK-ULP might be responsible for FOB resistance in sweet basil and demonstrate the usefulness of the recently sequenced basil genome for QTL mapping and gene mining.
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Affiliation(s)
- Itay Gonda
- Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay 30095, Israel
| | - Renana Milavski
- Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay 30095, Israel; Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Chen Adler
- Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay 30095, Israel
| | - Mohamad Abu-Abied
- Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay 30095, Israel
| | - Ofir Tal
- Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay 30095, Israel
| | - Adi Faigenboim
- Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay 30095, Israel
| | - David Chaimovitsh
- Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay 30095, Israel
| | - Nativ Dudai
- Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay 30095, Israel; Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
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9
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Cia Zeaxanthin Biosynthesis, OsZEP and OsVDE Regulate Striped Leaves Occurring in Response to Deep Transplanting of Rice. Int J Mol Sci 2022; 23:ijms23158340. [PMID: 35955477 PMCID: PMC9369140 DOI: 10.3390/ijms23158340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 02/04/2023] Open
Abstract
The rice leaf color mutant B03S was previously generated from the photoperiod- and thermo-sensitive genic male sterile (PTGMS) rice line Efeng 1S, of which male sterility manifests by photoperiod and temperature but exhibits mainly temperature-sensitive characteristics. After these plants were deeply transplanted, the new leaves manifested typical zebra stripe patterns. Here, B03S was subjected to deep and shallow transplanting, shading with soil and aluminum foil, and control conditions in situ to determine the cause of the striped-leaf trait. The direct cause of striped leaves is the base of the leaf sheath being under darkness during deep transplanting, of which the critical shading range reached or exceeds 4 cm above the base. Moreover, typical striped leaves were analyzed based on the targeted metabolome method by ultra-performance liquid chromatography/tandem mass spectrometry (UPLC–MS/MS) combined with transcriptome and real-time quantitative PCR (qPCR)-based verification to clarify the metabolic pathways and transcriptional regulation involved. Carotenoids enter the xanthophyll cycle, and the metabolites that differentially accumulate in the striped leaves include zeaxanthin and its derivatives for photooxidative stress protection, driven by the upregulated expression of OsZEP. These findings improve the understanding of the physiological and metabolic mechanisms underlying the leaf color mutation in rice plants, enrich the theoretical foundation of the nonuniform leaf color phenomenon widely found in nature and highlight key advancements concerning rice production involving the transplanting of seedlings or direct broadcasting of seeds.
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10
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Duduit JR, Kosentka PZ, Miller MA, Blanco-Ulate B, Lenucci MS, Panthee DR, Perkins-Veazie P, Liu W. Coordinated transcriptional regulation of the carotenoid biosynthesis contributes to fruit lycopene content in high-lycopene tomato genotypes. HORTICULTURE RESEARCH 2022; 9:uhac084. [PMID: 35669706 PMCID: PMC9160729 DOI: 10.1093/hr/uhac084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/25/2022] [Indexed: 06/15/2023]
Abstract
Lycopene content in tomato fruit is largely under genetic control and varies greatly among genotypes. Continued improvement of lycopene content in elite varieties with conventional breeding has become challenging, in part because little is known about the underlying molecular mechanisms in high-lycopene tomatoes (HLYs). We collected 42 HLYs with different genetic backgrounds worldwide. High-performance liquid chromatography (HPLC) analysis revealed lycopene contents differed among the positive control wild tomato Solanum pimpinellifolium, HLYs, the normal lycopene cultivar "Moneymaker", and the non-lycopene cultivar NC 1Y at the pink and red ripe stages. Real-time RT-PCR analysis of expression of the 25 carotenoid biosynthesis pathway genes of each genotype showed a significantly higher expression in nine upstream genes (GGPPS1, GGPPS2, GGPPS3, TPT1, SSU II, PSY2, ZDS, CrtISO and CrtISO-L1 but not the well-studied PSY1, PDS and Z-ISO) at the breaker and/or red ripe stages in HLYs compared to Moneymaker, indicating a higher metabolic flux flow into carotenoid biosynthesis pathway in HLYs. Further conversion of lycopene to carotenes may be prevented via the two downstream genes (β-LCY2 and ε-LCY), which had low-abundance transcripts at either or both stages. Additionally, the significantly higher expression of four downstream genes (BCH1, ZEP, VDE, and CYP97C11) at either or both ripeness stages leads to significantly lower fruit lycopene content in HLYs than in the wild tomato. This is the first systematic investigation of the role of the complete pathway genes in regulating fruit lycopene biosynthesis across many HLYs, and enables tomato breeding and gene editing for increased fruit lycopene content.
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Affiliation(s)
| | | | - Morgan A Miller
- Department of Horticultural Science, North Carolina State University, Raleigh, NC, 27607, USA
| | | | - Marcello S Lenucci
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento (DiSTeBA), Via Prov.le Lecce-Monteroni, Lecce, 73100 Italy
| | - Dilip R Panthee
- Department of Horticultural Science, North Carolina State University, Mountain Horticultural Crops Research and Extension Center, Mills River, NC 28759, USA
| | - Penelope Perkins-Veazie
- Department of Horticultural Science, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, Kannapolis, NC 28081, USA
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11
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Powell AF, Feder A, Li J, Schmidt MHW, Courtney L, Alseekh S, Jobson EM, Vogel A, Xu Y, Lyon D, Dumschott K, McHale M, Sulpice R, Bao K, Lal R, Duhan A, Hallab A, Denton AK, Bolger ME, Fernie AR, Hind SR, Mueller LA, Martin GB, Fei Z, Martin C, Giovannoni JJ, Strickler SR, Usadel B. A Solanum lycopersicoides reference genome facilitates insights into tomato specialized metabolism and immunity. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 110:1791-1810. [PMID: 35411592 DOI: 10.1111/tpj.15770] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 03/10/2022] [Accepted: 03/27/2022] [Indexed: 06/14/2023]
Abstract
Wild relatives of tomato are a valuable source of natural variation in tomato breeding, as many can be hybridized to the cultivated species (Solanum lycopersicum). Several, including Solanum lycopersicoides, have been crossed to S. lycopersicum for the development of ordered introgression lines (ILs), facilitating breeding for desirable traits. Despite the utility of these wild relatives and their associated ILs, few finished genome sequences have been produced to aid genetic and genomic studies. Here we report a chromosome-scale genome assembly for S. lycopersicoides LA2951, which contains 37 938 predicted protein-coding genes. With the aid of this genome assembly, we have precisely delimited the boundaries of the S. lycopersicoides introgressions in a set of S. lycopersicum cv. VF36 × LA2951 ILs. We demonstrate the usefulness of the LA2951 genome by identifying several quantitative trait loci for phenolics and carotenoids, including underlying candidate genes, and by investigating the genome organization and immunity-associated function of the clustered Pto gene family. In addition, syntenic analysis of R2R3MYB genes sheds light on the identity of the Aubergine locus underlying anthocyanin production. The genome sequence and IL map provide valuable resources for studying fruit nutrient/quality traits, pathogen resistance, and environmental stress tolerance. We present a new genome resource for the wild species S. lycopersicoides, which we use to shed light on the Aubergine locus responsible for anthocyanin production. We also provide IL boundary mappings, which facilitated identifying novel carotenoid quantitative trait loci of which one was likely driven by an uncharacterized lycopene β-cyclase whose function we demonstrate.
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Affiliation(s)
| | - Ari Feder
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
| | - Jie Li
- Department of Biochemistry and Metabolism, The John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Maximilian H-W Schmidt
- Institute for Biology I, BioSC, RWTH Aachen University, 52474, Aachen, Germany
- IBG-4 Bioinformatics, Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Lance Courtney
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
- Plant Biology Section, School of Integrative Plant Sciences, Cornell University, Ithaca, NY, 14853, USA
| | - Saleh Alseekh
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, 4000, Plovdiv, Bulgaria
| | - Emma M Jobson
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
| | - Alexander Vogel
- Institute for Biology I, BioSC, RWTH Aachen University, 52474, Aachen, Germany
| | - Yimin Xu
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
| | - David Lyon
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - Kathryn Dumschott
- IBG-4 Bioinformatics, Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Marcus McHale
- Plant Systems Biology Lab, Ryan Institute, National University of Ireland, H91 TK33, Galway, Ireland
| | - Ronan Sulpice
- Plant Systems Biology Lab, Ryan Institute, National University of Ireland, H91 TK33, Galway, Ireland
| | - Kan Bao
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
| | - Rohit Lal
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
| | - Asha Duhan
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
| | - Asis Hallab
- IBG-4 Bioinformatics, Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Alisandra K Denton
- Institute for Biology I, BioSC, RWTH Aachen University, 52474, Aachen, Germany
| | - Marie E Bolger
- IBG-4 Bioinformatics, Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Alisdair R Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, 4000, Plovdiv, Bulgaria
| | - Sarah R Hind
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | | | - Gregory B Martin
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
- Plant Pathology and Plant-Microbe Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA, and
| | - Zhangjun Fei
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
- US Department of Agriculture-Agricultural Research Service, Robert W. Holley Center for Agriculture and Health, Ithaca, NY, 14853, USA
| | - Cathie Martin
- Department of Biochemistry and Metabolism, The John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - James J Giovannoni
- Boyce Thompson Institute, Ithaca, New York, 14853, USA
- US Department of Agriculture-Agricultural Research Service, Robert W. Holley Center for Agriculture and Health, Ithaca, NY, 14853, USA
| | | | - Björn Usadel
- Institute for Biology I, BioSC, RWTH Aachen University, 52474, Aachen, Germany
- IBG-4 Bioinformatics, Forschungszentrum Jülich, 52428, Jülich, Germany
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12
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Mining of Potential Gene Resources for Breeding Nutritionally Improved Maize. PLANTS 2022; 11:plants11050627. [PMID: 35270097 PMCID: PMC8912576 DOI: 10.3390/plants11050627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 11/16/2022]
Abstract
Maize is one of the leading food crops and its kernel is rich in starch, lipids, protein and other energy substances. In addition, maize kernels also contain many trace elements that are potentially beneficial to human health, such as vitamins, minerals and other secondary metabolites. However, gene resources that could be applied for nutrient improvement are limited in maize. In this review, we summarized 107 genes that are associated with nutrient content from different plant species and identified 246 orthologs from the maize genome. In addition, we constructed physical maps and performed a detailed expression pattern analysis for the 246 maize potential gene resources. Combining expression profiles and their potential roles in maize nutrient improvement, genetic engineering by editing or ectopic expression of these genes in maize are expected to improve resistant starch, oil, essential amino acids, vitamins, iron, zinc and anthocyanin levels of maize grains. Thus, this review provides valuable gene resources for maize nutrient improvement.
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13
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Zhou M, Deng L, Guo S, Yuan G, Li C, Li C. Alternative transcription and feedback regulation suggest that SlIDI1 is involved in tomato carotenoid synthesis in a complex way. HORTICULTURE RESEARCH 2022; 9:6498066. [PMID: 35031800 PMCID: PMC8788357 DOI: 10.1093/hr/uhab045] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/06/2021] [Accepted: 08/16/2021] [Indexed: 05/31/2023]
Abstract
Carotenoid pigments confer photoprotection and visual attraction and serve as precursors for many important signaling molecules. Herein, the orange-fruited phenotype of a tomato elite inbred line resulting from sharply reduced carotenoid levels and an increased β-carotene-to-lycopene ratio in fruit was shown to be controlled by a single recessive gene, oft3. BSA-Seq combined with fine mapping delimited the oft3 gene to a 71.23 kb interval on chromosome 4, including eight genes. Finally, the oft3 candidate gene SlIDI1, harboring a 116 bp deletion mutation, was identified by genome sequence analysis. Further functional complementation and CRISPR-Cas9 knockout experiments confirmed that SlIDI1 was the gene underlying the oft3 locus. qRT-PCR analysis revealed that the expression of SlIDI1 was highest in flowers and fruit and increased with fruit ripening or flower maturation. SlIDI1 simultaneously produced long and short transcripts by alternative transcription initiation and alternative splicing. Green fluorescent protein fusion expression revealed that the long isoform was mainly localized in plastids and that an N-terminal 59-amino acid extension sequence was responsible for plastid targeting. Short transcripts were identified in leaves and fruit by 5' RACE and in fruit by 3' RACE, which produced corresponding proteins lacking transit peptides and/or putative peroxisome targeting sequences, respectively. In SlIDI1 mutant fruit, SlBCH1 transcription involved in β-carotenoid catabolism was obviously suppressed, which may be responsible for the higher β-carotene-to-lycopene ratio and suggested potential feedback regulatory mechanisms involved in carotenoid pathway flux.
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Affiliation(s)
- Ming Zhou
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Lei Deng
- State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing 100101, China
| | - Shaogui Guo
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Guoliang Yuan
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Chuanyou Li
- State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing 100101, China
| | - Changbao Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
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14
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Simkin AJ. Carotenoids and Apocarotenoids in Planta: Their Role in Plant Development, Contribution to the Flavour and Aroma of Fruits and Flowers, and Their Nutraceutical Benefits. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10112321. [PMID: 34834683 PMCID: PMC8624010 DOI: 10.3390/plants10112321] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 05/05/2023]
Abstract
Carotenoids and apocarotenoids are diverse classes of compounds found in nature and are important natural pigments, nutraceuticals and flavour/aroma molecules. Improving the quality of crops is important for providing micronutrients to remote communities where dietary variation is often limited. Carotenoids have also been shown to have a significant impact on a number of human diseases, improving the survival rates of some cancers and slowing the progression of neurological illnesses. Furthermore, carotenoid-derived compounds can impact the flavour and aroma of crops and vegetables and are the origin of important developmental, as well as plant resistance compounds required for defence. In this review, we discuss the current research being undertaken to increase carotenoid content in plants and research the benefits to human health and the role of carotenoid derived volatiles on flavour and aroma of fruits and vegetables.
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Affiliation(s)
- Andrew J. Simkin
- School of Biosciences, University of Kent, Canterbury CT2 7NJ, UK; or
- Crop Science and Production Systems, NIAB-EMR, New Road, East Malling, Kent ME19 6BJ, UK
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15
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Kilambi HV, Dindu A, Sharma K, Nizampatnam NR, Gupta N, Thazath NP, Dhanya AJ, Tyagi K, Sharma S, Kumar S, Sharma R, Sreelakshmi Y. The new kid on the block: a dominant-negative mutation of phototropin1 enhances carotenoid content in tomato fruits. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 106:844-861. [PMID: 33608974 DOI: 10.1111/tpj.15206] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/15/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Phototropins, the UVA-blue light photoreceptors, endow plants to detect the direction of light and optimize photosynthesis by regulating positioning of chloroplasts and stomatal gas exchange. Little is known about their functions in other developmental responses. A tomato Non-phototropic seedling1 (Nps1) mutant, bearing an Arg495His substitution in the vicinity of LOV2 domain in phototropin1, dominant-negatively blocks phototropin1 responses. The fruits of Nps1 mutant were enriched in carotenoids, particularly lycopene, compared with its parent, Ailsa Craig. On the contrary, CRISPR/CAS9-edited loss of function phototropin1 mutants displayed subdued carotenoids compared with the parent. The enrichment of carotenoids in Nps1 fruits is genetically linked with the mutation and exerted in a dominant-negative fashion. Nps1 also altered volatile profiles with high levels of lycopene-derived 6-methyl 5-hepten2-one. The transcript levels of several MEP and carotenogenesis pathway genes were upregulated in Nps1. Nps1 fruits showed altered hormonal profiles with subdued ethylene emission and reduced respiration. Proteome profiles showed a causal link between higher carotenogenesis and increased levels of protein protection machinery, which may stabilize proteins contributing to MEP and carotenogenesis pathways. The enhancement of carotenoid content by Nps1 in a dominant-negative fashion offers a potential tool for high lycopene-bearing hybrid tomatoes.
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Affiliation(s)
- Himabindu Vasuki Kilambi
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Alekhya Dindu
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Kapil Sharma
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Narasimha Rao Nizampatnam
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Neha Gupta
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Nikhil Padmanabhan Thazath
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Ajayakumar Jaya Dhanya
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Kamal Tyagi
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Sulabha Sharma
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Sumit Kumar
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Rameshwar Sharma
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Yellamaraju Sreelakshmi
- Repository of Tomato Genomics Resources, Department of Plant Sciences, University of Hyderabad, Hyderabad, 500046, India
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16
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Escobar-Tovar L, Sierra J, Hernández-Muñoz A, McQuinn RP, Mathioni S, Cordoba E, Colas des Francs-Small C, Meyers BC, Pogson B, León P. Deconvoluting apocarotenoid-mediated retrograde signaling networks regulating plastid translation and leaf development. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 105:1582-1599. [PMID: 33340183 DOI: 10.1111/tpj.15134] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
Signals originating within plastids modulate organelle differentiation by transcriptionally regulating nuclear-encoded genes. These retrograde signals are also integral regulators of plant development, including leaf morphology. The clb5 mutant displays severe leaf morphology defects due to Apocarotenoid Signal 1 (ACS1) accumulation in the developmentally arrested plastid. Transcriptomic analysis of clb5 validates that ACS1 accumulation deregulates hundreds of nuclear genes, including the suppression of most genes encoding plastid ribosomal proteins. Herein, we order the molecular events causing the leaf phenotype associated with the accumulation of ACS1, which includes two consecutive retrograde signaling cascades. Firstly, ACS1 originating in the plastid drives inhibition of plastid translation (IPT) via nuclear transcriptome remodeling of chlororibosomal proteins, requiring light as an essential component. Subsequently, IPT results in leaf morphological defects via a GUN1-dependent pathway shared with seedlings undergoing chemical IPT treatments and is restricted to an early window of the leaf development. Collectively, this work advances our understanding of the complexity within plastid retrograde signaling exemplified by sequential signal exchange and consequences that in a particular temporal and spatial context contribute to the modulation of leaf development.
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Affiliation(s)
- Lina Escobar-Tovar
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, Morelos, 62210, Mexico
| | - Julio Sierra
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, Morelos, 62210, Mexico
| | - Arihel Hernández-Muñoz
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, Morelos, 62210, Mexico
| | - Ryan P McQuinn
- Donald Danforth Plant Science Center, St. Louis, MO, 63132, USA
| | - Sandra Mathioni
- Division of Plant Sciences, University of Missouri-Columbia, Columbia, MO, 65211, USA
- Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 0200, Australia
| | - Elizabeth Cordoba
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, Morelos, 62210, Mexico
| | - Catherine Colas des Francs-Small
- Australian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, WA, 6009, Australia
| | - Blake C Meyers
- Division of Plant Sciences, University of Missouri-Columbia, Columbia, MO, 65211, USA
- Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 0200, Australia
| | - Barry Pogson
- Donald Danforth Plant Science Center, St. Louis, MO, 63132, USA
| | - Patricia León
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, Morelos, 62210, Mexico
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17
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Zuccarelli R, Rodríguez-Ruiz M, Lopes-Oliveira PJ, Pascoal GB, Andrade SCS, Furlan CM, Purgatto E, Palma JM, Corpas FJ, Rossi M, Freschi L. Multifaceted roles of nitric oxide in tomato fruit ripening: NO-induced metabolic rewiring and consequences for fruit quality traits. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:941-958. [PMID: 33165620 DOI: 10.1093/jxb/eraa526] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/30/2020] [Indexed: 06/11/2023]
Abstract
Nitric oxide (NO) has been implicated as part of the ripening regulatory network in fleshy fruits. However, very little is known about the simultaneous action of NO on the network of regulatory events and metabolic reactions behind ripening-related changes in fruit color, taste, aroma and nutritional value. Here, we performed an in-depth characterization of the concomitant changes in tomato (Solanum lycopersicum) fruit transcriptome and metabolome associated with the delayed-ripening phenotype caused by NO supplementation at the pre-climacteric stage. Approximately one-third of the fruit transcriptome was altered in response to NO, including a multilevel down-regulation of ripening regulatory genes, which in turn restricted the production and tissue sensitivity to ethylene. NO also repressed hydrogen peroxide-scavenging enzymes, intensifying nitro-oxidative stress and S-nitrosation and nitration events throughout ripening. Carotenoid, tocopherol, flavonoid and ascorbate biosynthesis were differentially affected by NO, resulting in overaccumulation of ascorbate (25%) and flavonoids (60%), and impaired lycopene production. In contrast, the biosynthesis of compounds related to tomato taste (sugars, organic acids, amino acids) and aroma (volatiles) was slightly affected by NO. Our findings indicate that NO triggers extensive transcriptional and metabolic rewiring at the early ripening stage, modifying tomato antioxidant composition with minimal impact on fruit taste and aroma.
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Affiliation(s)
- Rafael Zuccarelli
- Departamento de Botânica, Universidade de São Paulo, USP, São Paulo, Brazil
| | | | | | - Grazieli B Pascoal
- Departamento de Alimentos e Nutrição Experimental, Universidade de São Paulo, USP, São Paulo, Brazil
- Curso de Graduação em Nutrição, Universidade Federal de Uberlândia, Minas Gerais, Brazil
| | - Sónia C S Andrade
- Departamento de Genética e Biologia Evolutiva, Universidade de São Paulo, USP, São Paulo, Brazil
| | - Cláudia M Furlan
- Departamento de Botânica, Universidade de São Paulo, USP, São Paulo, Brazil
| | - Eduardo Purgatto
- Departamento de Alimentos e Nutrição Experimental, Universidade de São Paulo, USP, São Paulo, Brazil
| | - José M Palma
- Group of Antioxidants, Free Radicals, and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín, CSIC, Granada, Spain
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals, and Nitric Oxide in Biotechnology, Food and Agriculture, Estación Experimental del Zaidín, CSIC, Granada, Spain
| | - Magdalena Rossi
- Departamento de Botânica, Universidade de São Paulo, USP, São Paulo, Brazil
| | - Luciano Freschi
- Departamento de Botânica, Universidade de São Paulo, USP, São Paulo, Brazil
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18
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Martina M, Tikunov Y, Portis E, Bovy AG. The Genetic Basis of Tomato Aroma. Genes (Basel) 2021; 12:genes12020226. [PMID: 33557308 PMCID: PMC7915847 DOI: 10.3390/genes12020226] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
Tomato (Solanum lycopersicum L.) aroma is determined by the interaction of volatile compounds (VOCs) released by the tomato fruits with receptors in the nose, leading to a sensorial impression, such as "sweet", "smoky", or "fruity" aroma. Of the more than 400 VOCs released by tomato fruits, 21 have been reported as main contributors to the perceived tomato aroma. These VOCs can be grouped in five clusters, according to their biosynthetic origins. In the last decades, a vast array of scientific studies has investigated the genetic component of tomato aroma in modern tomato cultivars and their relatives. In this paper we aim to collect, compare, integrate and summarize the available literature on flavour-related QTLs in tomato. Three hundred and 5ifty nine (359) QTLs associated with tomato fruit VOCs were physically mapped on the genome and investigated for the presence of potential candidate genes. This review makes it possible to (i) pinpoint potential donors described in literature for specific traits, (ii) highlight important QTL regions by combining information from different populations, and (iii) pinpoint potential candidate genes. This overview aims to be a valuable resource for researchers aiming to elucidate the genetics underlying tomato flavour and for breeders who aim to improve tomato aroma.
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Affiliation(s)
- Matteo Martina
- DISAFA, Plant Genetics and Breeding, University of Turin, 10095 Grugliasco, Italy;
| | - Yury Tikunov
- Plant Breeding, Wageningen University & Research, P.O. Box 386, 6700 AJ Wageningen, The Netherlands;
| | - Ezio Portis
- DISAFA, Plant Genetics and Breeding, University of Turin, 10095 Grugliasco, Italy;
- Correspondence: (E.P.); (A.G.B.); Tel.: +39-011-6708807 (E.P.); +31-317-480762 (A.G.B.)
| | - Arnaud G. Bovy
- Plant Breeding, Wageningen University & Research, P.O. Box 386, 6700 AJ Wageningen, The Netherlands;
- Correspondence: (E.P.); (A.G.B.); Tel.: +39-011-6708807 (E.P.); +31-317-480762 (A.G.B.)
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Xu Y, Harvey PJ. Phytoene and phytofluene overproduction by Dunaliella salina using the mitosis inhibitor chlorpropham. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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McQuinn RP, Gapper NE, Gray AG, Zhong S, Tohge T, Fei Z, Fernie AR, Giovannoni JJ. Manipulation of ZDS in tomato exposes carotenoid- and ABA-specific effects on fruit development and ripening. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:2210-2224. [PMID: 32171044 PMCID: PMC7589306 DOI: 10.1111/pbi.13377] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/12/2020] [Accepted: 02/21/2020] [Indexed: 05/20/2023]
Abstract
Spontaneous mutations in fruit-specific carotenoid biosynthetic genes of tomato (Solanum lycopersicum) have led to improved understanding of ripening-associated carotenogenesis. Here, we confirm that ZDS is encoded by a single gene in tomato transcriptionally regulated by ripening transcription factors RIN, NOR and ethylene. Manipulation of ZDS was achieved through transgenic repression and heterologous over-expression in tomato. CaMV 35S-driven RNAi repression inhibited carotenoid biosynthesis in all aerial tissues examined resulting in elevated levels of ζ-carotene isomers and upstream carotenoids, while downstream all trans-lycopene and subsequent photoprotective carotenes and xanthophylls were diminished. Consequently, immature fruit displayed photo-bleaching consistent with reduced levels of the photoprotective carotenes and developmental phenotypes related to a reduction in the carotenoid-derived phytohormone abscisic acid (ABA). ZDS-repressed ripe fruit was devoid of the characteristic red carotenoid, all trans-lycopene and displayed brilliant yellow pigmentation due to elevated 9,9' di-cis-ζ-carotene. Over-expression of the Arabidopsis thaliana ZDS (AtZDS) gene bypassed endogenous co-suppression and revealed ZDS as an additional bottleneck in ripening-associated carotenogenesis of tomato. Quantitation of carotenoids in addition to multiple ripening parameters in ZDS-altered lines and ABA-deficient fruit-specific carotenoid mutants was used to separate phenotypic consequences of ABA from other effects of ZDS manipulation and reveal a unique and dynamic ζ-carotene isomer profile in ripe fruit.
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Affiliation(s)
- Ryan P. McQuinn
- Department of Plant BiologyCornell UniversityIthacaNYUSA
- Boyce Thompson Institute for Plant ResearchCornell UniversityIthacaNYUSA
- Present address:
Australian Research Council Centre of Excellence in Plant Energy BiologyResearch School of BiologyThe Australian National UniversityCanberraACT2601Australia
| | - Nigel E. Gapper
- Boyce Thompson Institute for Plant ResearchCornell UniversityIthacaNYUSA
| | - Amanda G. Gray
- Boyce Thompson Institute for Plant ResearchCornell UniversityIthacaNYUSA
| | - Silin Zhong
- Boyce Thompson Institute for Plant ResearchCornell UniversityIthacaNYUSA
| | - Takayuki Tohge
- Max‐Planck‐Institut fur Molekulare PflanzenphysiologiePotsdam‐GolmGermany
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant ResearchCornell UniversityIthacaNYUSA
| | - Alisdair R. Fernie
- Max‐Planck‐Institut fur Molekulare PflanzenphysiologiePotsdam‐GolmGermany
| | - James J. Giovannoni
- Department of Plant BiologyCornell UniversityIthacaNYUSA
- Boyce Thompson Institute for Plant ResearchCornell UniversityIthacaNYUSA
- Robert W. Holley Center for Agriculture and HealthUSDA‐ARSCornell UniversityIthacaNYUSA
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21
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Wang T, Hou Y, Hu H, Wang C, Zhang W, Li H, Cheng Z, Yang L. Functional Validation of Phytoene Synthase and Lycopene ε-Cyclase Genes for High Lycopene Content in Autumn Olive Fruit ( Elaeagnus umbellata). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11503-11511. [PMID: 32936623 DOI: 10.1021/acs.jafc.0c03092] [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] [Indexed: 06/11/2023]
Abstract
Lycopene is the most potent antioxidant among all carotenoids and is beneficial to human health. A ripe fruit of autumn olive (Elaeagnus umbellata Thunb.) accumulates a high level of lycopene, which is 5-20 times higher than that in an ordinary tomato fruit. During fruit ripening of autumn olive, only phytoene synthase (EutPSY) expression pattern shows a tight positive correlation with the increased lycopene content observed at four ripening stages, while the lycopene ε-cyclase (EutLCYe) transcript could not be detected throughout fruit ripening. Here, we investigated whether the two genes are important targets for engineering lycopene biosynthesis. The full-length cDNAs of EutPSY and EutLCYe were first isolated. Fruit-specific overexpression of EutPSY in tomato fruits resulted in elevated contents of lycopene and β-carotene through feedforward regulation of carotenogenic genes, i.e., downregulation of SlLCYe and upregulation of SlLCYb and SlCYCB. These fruits were decreased in ethylene production throughout ripening. Transcript levels of genes for system-2 ethylene synthesis (SlACS2, SlACS4, SlACO1, and SlACO3), perception (SlNR/ETR3 and SlETR4), and response (SlE4 and SlE8) were also inhibited in EutPSY-overexpressing fruits. Repressing ethylene synthesis and signaling transduction delayed fruit climacteric ripening of transgenic tomato plants. Additionally, RNAi suppression of SlLCYe enhanced β-carotene but not lycopene accumulation through altered expression of carotenogenic genes in transgenic tomato fruits by both feedforward and feedback regulatory mechanisms. Ethylene production in SlLCYe-RNAi fruits decreased, thereby delaying fruit ripening. Collectively, these results confirmed that transcriptional regulation of EutPSY and EutLCYe plays a crucial role and a part in massive lycopene accumulation in autumn olive fruits, respectively. EutPSY overexpression enhanced lycopene accumulation in tomato fruits independently of the ethylene pathway but did not influence the size and weight of tomato fruits. EutPSY can be used as an effective strategy capable of elevating the lycopene content in fruits for improving quality.
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Affiliation(s)
- Tao Wang
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Yuning Hou
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Haitao Hu
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Changchun Wang
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Weilin Zhang
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Haihang Li
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Zhenxia Cheng
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Ling Yang
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
- Department of Environmental Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
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22
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Moreno JC, Mi J, Agrawal S, Kössler S, Turečková V, Tarkowská D, Thiele W, Al-Babili S, Bock R, Schöttler MA. Expression of a carotenogenic gene allows faster biomass production by redesigning plant architecture and improving photosynthetic efficiency in tobacco. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:1967-1984. [PMID: 32623777 DOI: 10.1111/tpj.14909] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/23/2020] [Indexed: 05/11/2023]
Abstract
Because carotenoids act as accessory pigments in photosynthesis, play a key photoprotective role and are of major nutritional importance, carotenogenesis has been a target for crop improvement. Although carotenoids are important precursors of phytohormones, previous genetic manipulations reported little if any effects on biomass production and plant development, but resulted in specific modifications in carotenoid content. Unexpectedly, the expression of the carrot lycopene β-cyclase (DcLCYB1) in Nicotiana tabacum cv. Xanthi not only resulted in increased carotenoid accumulation, but also in altered plant architecture characterized by longer internodes, faster plant growth, early flowering and increased biomass. Here, we have challenged these transformants with a range of growth conditions to determine the robustness of their phenotype and analyze the underlying mechanisms. Transgenic DcLCYB1 lines showed increased transcript levels of key genes involved in carotenoid, chlorophyll, gibberellin (GA) and abscisic acid (ABA) biosynthesis, but also in photosynthesis-related genes. Accordingly, their carotenoid, chlorophyll, ABA and GA contents were increased. Hormone application and inhibitor experiments confirmed the key role of altered GA/ABA contents in the growth phenotype. Because the longer internodes reduce shading of mature leaves, induction of leaf senescence was delayed, and mature leaves maintained a high photosynthetic capacity. This increased total plant assimilation, as reflected in higher plant yields under both fully controlled constant and fluctuating light, and in non-controlled conditions. Furthermore, our data are a warning that engineering of isoprenoid metabolism can cause complex changes in phytohormone homeostasis and therefore plant development, which have not been sufficiently considered in previous studies.
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Affiliation(s)
- Juan C Moreno
- Max Planck Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Jianing Mi
- King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Shreya Agrawal
- Max Planck Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Stella Kössler
- Max Planck Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Veronika Turečková
- Laboratory of Growth Regulators, The Czech Academy of Sciences, Institute of Experimental Botany & Palacký University, Šlechtitelů 27, Olomouc, CZ-78371, Czech Republic
| | - Danuše Tarkowská
- Laboratory of Growth Regulators, The Czech Academy of Sciences, Institute of Experimental Botany & Palacký University, Šlechtitelů 27, Olomouc, CZ-78371, Czech Republic
| | - Wolfram Thiele
- Max Planck Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Salim Al-Babili
- King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Ralph Bock
- Max Planck Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Mark Aurel Schöttler
- Max Planck Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
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Watkins JL, Pogson BJ. Prospects for Carotenoid Biofortification Targeting Retention and Catabolism. TRENDS IN PLANT SCIENCE 2020; 25:501-512. [PMID: 31956035 DOI: 10.1016/j.tplants.2019.12.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 11/20/2019] [Accepted: 12/16/2019] [Indexed: 05/08/2023]
Abstract
Due to the ongoing prevalence of vitamin A deficiency (VAD) in developing countries there has been a large effort towards increasing the carotenoid content of staple foods via biofortification. Common strategies used for carotenoid biofortification include altering flux through the biosynthesis pathway to direct synthesis to a specific product, generally β-carotene, or via increasing the expression of genes early in the carotenoid biosynthesis pathway. Recently, carotenoid biofortification strategies are turning towards increasing the retention of carotenoids in plant tissues either via altering sequestration within the cell or via downregulating enzymes known to cause degradation of carotenoids. To date, little attention has focused on increasing the stability of carotenoids, which may be a promising method of increasing carotenoid content in staple foods.
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Affiliation(s)
- Jacinta L Watkins
- Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, ACT 0200, Australia
| | - Barry J Pogson
- Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, ACT 0200, Australia.
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24
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Zhao X, Hu K, Yan M, Yi B, Wen J, Ma C, Shen J, Fu T, Tu J. Disruption of carotene biosynthesis leads to abnormal plastids and variegated leaves in Brassica napus. Mol Genet Genomics 2020; 295:981-999. [PMID: 32306107 PMCID: PMC7297816 DOI: 10.1007/s00438-020-01674-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 04/02/2020] [Indexed: 12/12/2022]
Abstract
Leaf color is an important characteristic of normal chloroplast development. Variegated plants have green- and white-sectored leaves, which can be used to identify important pathways and molecular mechanisms of chloroplast development. We studied two Brassica napus variegation mutants from same one variegated ancestor, designated ZY-4 and ZY-8, which have different degrees of variegation. When grown in identical conditions, the ratio of white sectors in ZY-4 leaves is higher than in ZY-8. In both mutants, the cells in green sectors contain normal chloroplasts; while, the cells in white sectors contain abnormal plastids. Seedling chloroplasts ultrastructure of both mutants showed that the biogenesis of chloroplasts was blocked in early stages; delayed development and structual damage in ZY-4 were more serious than in ZY-8. Employing bulked segregant analysis(BSA), two bulks (BY142 and BY137) from BC2F1 lines derived from ZY-4 and ZS11, and one bulk (BY56) from BC2F1 lines derived from ZY-8 and ZS11, and screening by Brassica 60K SNP BeadChip Array, showed the candidate regions localized in chromosome A08 (BY142), C04 (BY137), and A08 (BY56), respectively. Transcriptome analysis of five seedling development stages of ZY-4, ZY-8, and ZS11 showed that photosynthesis, energy metabolism-related pathways and translation-related pathways were important for chloroplast biogenesis. The number of down- or up-regulated genes related to immune system process in ZY-4 was more than in ZY-8. The retrograde signaling pathway was mis-regulated in both mutants. DEG analysis indicated that both mutants showed photooxidative damages. By coupling transcriptome and BSA CHIP analyses, some candidate genes were identified. The gene expression pattern of carotene biosynthesis pathway was disrupted in both mutants. However, histochemical analysis of ROS revealed that there was no excessive accumulation of ROS in ZY-4 and ZY-8. Taken together, our data indicate that the disruption of carotene biosynthetic pathways leads to the variegation phenotypes of ZY-4 and ZY-8 and there are some functions that can compensate for the disruption of carotene biosynthesis in ZY-4 and ZY-8 to reduce ROS and prevent seedling mortality.
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Affiliation(s)
- Xiaobin Zhao
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Kaining Hu
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Mengjiao Yan
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Bin Yi
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Jing Wen
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Chaozhi Ma
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Jinxiong Shen
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Tingdong Fu
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Jinxing Tu
- National Key Laboratory of Crop Genetic Improvement, National Sub-Center of Rapeseed Improvement in Wuhan, Huazhong Agricultural University, Wuhan, People's Republic of China.
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25
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Mazzucchi L, Xu Y, Harvey P. Stereoisomers of Colourless Carotenoids from the Marine Microalga Dunaliella salina. Molecules 2020; 25:molecules25081880. [PMID: 32325762 PMCID: PMC7222010 DOI: 10.3390/molecules25081880] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 01/18/2023] Open
Abstract
Carotenoids comprise a diverse range of naturally occurring stereoisomers, which differ in their physico-chemical properties. Their biosynthesis begins with phytoene, which is a rarity among carotenoids because it is colourless. Phytoene is sought after as a skin protectant against harmful UV range B (290-320 nm) and C (100-290 nm) light, and as a natural skin-whitening agent and is synthesized from geranylgeranyl diphosphate. Geranylgeranyl diphosphate is catalysed by phytoene synthase and phytoene desaturase to phytoene and phytofluene, respectively. The subsequent steps involve desaturation, isomerisation and cyclisation reactions to form α- and β-carotene stereoisomers, via all-trans lycopene. The marine microalga Dunaliella salina is the richest source of β-carotene, but it can accumulate phytoene and phytofluene as well. In the present study, different analytical tools including High-Performance Liquid Chromatography (HPLC), Ultra-Performance Convergence Chromatography (UPC2-MS) and Nuclear Magnetic Resonance (NMR) were used to characterize and quantify the phytoene isomeric configurations in D. salina in order to explore both the feasibility of D. salina as a cell factory for phytoene production and to gain new insight into the carotenoid synthesis pathway in D. salina. D. salina, similar to tomato, produced predominantly 15-cis phytoene isomer (>98%) and a trace amount of all-trans phytoene (<2%). High light stress, red light stress, or use of a phytoene desaturase inhibitor or a mitotic disrupter herbicide led to the accumulation of 15-cis phytoene but not all-trans phytoene. 9-cis phytoene was not detected in any of the extracts of D. salina biomass. Our main findings suggest that 15-cis phytoene is the most abundant isomer in D. salina and that it is subject to a series of isomerisation and desaturation reactions to form all-trans and 9-cis β-carotene.
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26
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Zheng X, Giuliano G, Al-Babili S. Carotenoid biofortification in crop plants: citius, altius, fortius. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158664. [PMID: 32068105 DOI: 10.1016/j.bbalip.2020.158664] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 12/24/2022]
Abstract
Carotenoids are indispensable for human health, required as precursors of vitamin A and efficient antioxidants. However, these plant pigments that play a vital role in photosynthesis are represented at insufficient levels in edible parts of several crops, which creates a need for increasing their content or optimizing their composition through biofortification. In particular, vitamin A deficiency, a severe health problem affecting the lives of millions in developing countries, has triggered the development of a series of high-provitamin A crops, including Golden Rice as the best-known example. Further carotenoid-biofortified crops have been generated by using genetic engineering approaches or through classical breeding. In this review, we depict carotenoid metabolism in plants and provide an update on the development of carotenoid-biofortified plants and their potential to meet needs and expectations. Furthermore, we discuss the possibility of using natural variation for carotenoid biofortification and the potential of gene editing tools. This article is part of a Special Issue entitled Carotenoids recent advances in cell and molecular biology edited by Johannes von Lintig and Loredana Quadro.
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Affiliation(s)
- Xiongjie Zheng
- King Abdullah University of Science and Technology (KAUST), Division of Biological and Environmental Science and Engineering, Center for Desert Agriculture, the BioActives Lab, Thuwal 23955-6900, Saudi Arabia
| | - Giovanni Giuliano
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Casaccia Research Center, Via Anguillarese 301, Roma 00123, Italy
| | - Salim Al-Babili
- King Abdullah University of Science and Technology (KAUST), Division of Biological and Environmental Science and Engineering, Center for Desert Agriculture, the BioActives Lab, Thuwal 23955-6900, Saudi Arabia.
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27
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Kishimoto S, Oda-Yamamizo C, Ohmiya A. Heterologous expression of xanthophyll esterase genes affects carotenoid accumulation in petunia corollas. Sci Rep 2020; 10:1299. [PMID: 31992834 PMCID: PMC6987204 DOI: 10.1038/s41598-020-58313-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 01/10/2020] [Indexed: 11/24/2022] Open
Abstract
The majority of carotenoids in petals are xanthophylls and most of these xanthophylls are esterified with fatty acids. Although petunia (Petunia x hybrida) is an important ornamental plant, it cannot accumulate enough carotenoids to have deep-yellow flowers. Our previous study suggested that low esterification activity causes low carotenoid accumulation in petunia corollas. Here, we introduced xanthophyll esterase (XES) from the petals of Ipomoea obscura, tomato (Solanum lycopersicum), and marigold (Tagetes erecta) into a pale-yellow-flowered cultivar of petunia to see whether these affect carotenoid accumulation in petunia corollas. Carotenoid contents and the proportions of esterified xanthophylls were elevated in the corollas of XES-overexpressing (XES-OX) transformants. Expression analysis showed that the transcript levels of endogenous carotenoid biosynthetic genes, which included geranylgeranyl diphosphate synthase 2, ζ-carotene desaturase, and lycopene β-ring cyclase in corolla tubes were upregulated in XES-OX plants. In addition, we discovered a difference in the composition of esterified xanthophylls among XES-OX plants, which may be caused by differences in the substrate specificity of their respective XESs. We conclude that esterification is an important process for carotenoid accumulation and XES is a useful tool for the quantitative and qualitative control of carotenoid accumulation in petals.
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Affiliation(s)
- Sanae Kishimoto
- Institute of Vegetable and Floriculture Science, National Agriculture and Food Research Organization (NARO), Fujimoto 2-1, Tsukuba, Ibaraki, 305-0852, Japan.
| | - Chihiro Oda-Yamamizo
- Institute of Vegetable and Floriculture Science, National Agriculture and Food Research Organization (NARO), Fujimoto 2-1, Tsukuba, Ibaraki, 305-0852, Japan.,Japanese Society for the Promotion of Science (JSPS), Tokyo, 102-0083, Japan
| | - Akemi Ohmiya
- Institute of Vegetable and Floriculture Science, National Agriculture and Food Research Organization (NARO), Fujimoto 2-1, Tsukuba, Ibaraki, 305-0852, Japan
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28
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Alagoz Y, Dhami N, Mitchell C, Cazzonelli CI. cis/trans Carotenoid Extraction, Purification, Detection, Quantification, and Profiling in Plant Tissues. Methods Mol Biol 2020; 2083:145-163. [PMID: 31745919 DOI: 10.1007/978-1-4939-9952-1_11] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Reverse phase high-performance liquid chromatography (HPLC) is the method of choice used in biological, health, and food research to identify, quantify, and profile carotenoid species. The identification and quantification of cis- and/or trans-carotene and xanthophyll isomers in plant tissues can be affected by the method of sample preparation and extraction, as well as the HPLC column chemistry and the solvent gradient. There is a high degree of heterogeneity in existing methods in terms of their ease, efficiency, and accuracy. We describe a simple carotenoid extraction method and two different optimised HPLC methods utilizing C18 or C30 reverse-phase columns. We outline applications, advantages, and disadvantages for using these reverse phase columns to detect xanthophylls and cis-carotenes in wild-type photosynthetic leaves and mutant dark-grown etiolated seedlings, respectively. Resources are provided to profile individual species based upon their spectral properties and retention time, as well as quantify carotenoids by their composition and absolute levels in different plant tissues.
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Affiliation(s)
- Yagiz Alagoz
- Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, 2751, NSW, Australia
| | - Namraj Dhami
- Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, 2751, NSW, Australia
| | - Chris Mitchell
- Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, 2751, NSW, Australia
| | - Christopher I Cazzonelli
- Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, 2751, NSW, Australia.
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Shimada N, Okuda Y, Maeda K, Umeno D, Takaichi S, Ikeuchi M. Astaxanthin production in a model cyanobacterium Synechocystis sp. PCC 6803. J GEN APPL MICROBIOL 2020; 66:116-120. [DOI: 10.2323/jgam.2020.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Naoya Shimada
- Department of Life Sciences (Biology), The University of Tokyo
| | - Yukiko Okuda
- Department of Life Sciences (Biology), The University of Tokyo
| | - Kaisei Maeda
- Department of Life Sciences (Biology), The University of Tokyo
- Department of Bioscience, Faculty of Life Sciences, Tokyo University of Agriculture
| | - Daisuke Umeno
- Department of Applied Chemistry and Biotechnology, Chiba University
| | - Shinichi Takaichi
- Department of Molecular Microbiology, Faculty of Life Sciences, Tokyo University of Agriculture
| | - Masahiko Ikeuchi
- Department of Life Sciences (Biology), The University of Tokyo
- Faculty of Education and Integrated Arts and Sciences, Waseda University
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Cao H, Luo H, Yuan H, Eissa MA, Thannhauser TW, Welsch R, Hao YJ, Cheng L, Li L. A Neighboring Aromatic-Aromatic Amino Acid Combination Governs Activity Divergence between Tomato Phytoene Synthases. PLANT PHYSIOLOGY 2019; 180:1988-2003. [PMID: 31221734 PMCID: PMC6670109 DOI: 10.1104/pp.19.00384] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/10/2019] [Indexed: 05/25/2023]
Abstract
Carotenoids exert multifaceted roles to plants and are critically important to humans. Phytoene synthase (PSY) is a major rate-limiting enzyme in the carotenoid biosynthetic pathway. PSY in plants is normally found as a small enzyme family with up to three members. However, knowledge of PSY isoforms in relation to their respective enzyme activities and amino acid residues that are important for PSY activity is limited. In this study, we focused on two tomato (Solanum lycopersicum) PSY isoforms, PSY1 and PSY2, and investigated their abilities to catalyze carotenogenesis via heterologous expression in transgenic Arabidopsis (Arabidopsis thaliana) and bacterial systems. We found that the fruit-specific PSY1 was less effective in promoting carotenoid biosynthesis than the green tissue-specific PSY2. Examination of the PSY proteins by site-directed mutagenesis analysis and three-dimensional structure modeling revealed two key amino acid residues responsible for this activity difference and identified a neighboring aromatic-aromatic combination in one of the PSY core structures as being crucial for high PSY activity. Remarkably, this neighboring aromatic-aromatic combination is evolutionarily conserved among land plant PSYs except PSY1 of tomato and potato (Solanum tuberosum). Strong transcription of tomato PSY1 likely evolved as compensation for its weak enzyme activity to allow for the massive carotenoid biosynthesis in ripe fruit. This study provides insights into the functional divergence of PSY isoforms and highlights the potential to rationally design PSY for the effective development of carotenoid-enriched crops.
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Affiliation(s)
- Hongbo Cao
- Robert W. Holley Center for Agriculture and Health, United States Department of Agriculture-Agricultural Research Service, Cornell University, Ithaca, New York 14853
- College of Horticulture, Hebei Agricultural University, Baoding, Hebei 071001, China
- State Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Hongmei Luo
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Hui Yuan
- Robert W. Holley Center for Agriculture and Health, United States Department of Agriculture-Agricultural Research Service, Cornell University, Ithaca, New York 14853
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853
| | - Mohamed A Eissa
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853
- Biotechnology Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Theodore W Thannhauser
- Robert W. Holley Center for Agriculture and Health, United States Department of Agriculture-Agricultural Research Service, Cornell University, Ithaca, New York 14853
| | - Ralf Welsch
- University of Freiburg, Faculty of Biology II, 79104 Freiburg, Germany
| | - Yu-Jin Hao
- State Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Lailiang Cheng
- Horticulture Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853
| | - Li Li
- Robert W. Holley Center for Agriculture and Health, United States Department of Agriculture-Agricultural Research Service, Cornell University, Ithaca, New York 14853
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853
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Wurtzel ET. Changing Form and Function through Carotenoids and Synthetic Biology. PLANT PHYSIOLOGY 2019; 179:830-843. [PMID: 30361256 PMCID: PMC6393808 DOI: 10.1104/pp.18.01122] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 10/06/2018] [Indexed: 05/06/2023]
Abstract
The diverse structures and multifaceted roles of carotenoids make these colorful pigments attractive targets for synthetic biology.
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Affiliation(s)
- Eleanore T Wurtzel
- Department of Biological Sciences, Lehman College, The City University of New York, Bronx, New York 10468
- The Graduate School and University Center-CUNY, New York, New York 10016-4309
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32
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Zhang G, Diao S, Zhang T, Chen D, He C, Zhang J. Identification and characterization of circular RNAs during the sea buckthorn fruit development. RNA Biol 2019; 16:354-361. [PMID: 30681395 DOI: 10.1080/15476286.2019.1574162] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
As a rising star of noncoding RNA, circular RNAs (circRNAs) have a covalently closed loop structure, which formed by 3'-5' ligation during splicing. A few circRNAs were identified and thought to be transcriptional noise due to cognitive defect over the past 40 years. Recently, with the development of high-throughput RNA sequencing techniques and specific algorithms for circRNA detection and quantification, plenty of potential circRNAs were identified in many species which play important roles in various biological processes. However, researches on circRNAs in fruit ripening process were lacking. Here, we totally identified 2616 circRNAs in sea buckthorn fruit development process, which uniformly distributed in sea buckthorn chromosome. Among them, 1721 (65.8%) circRNAs were arising from the exons of their host genes, 252 circRNAs were identified as the differentially expressed circRNAs (DEcircRNAs) between three different development stages, and 181 (71.8%) DEcircRNAs had sequence similarity with 235 identified circRNAs from five know plant species. Functional annotation revealed that host genes of DEcircRNAs were predicted to be involved in carotenoid biosynthesis, lipid synthesis and plant hormone signal transduction. Additionally, 53 DEcircRNAs were predicted as the corresponding nine miRNAs sponges in sea buckthorn. Divergent reverse-transcription PCR and RT-qPCR were used for validate the differential expression and back-splicing sites of six DEcircRNAs. These results revealed the role of circRNAs in sea buckthorn fruit ripening process and promoted the noncoding RNA researches in plants.
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Affiliation(s)
- Guoyun Zhang
- a State Key Laboratory of Tree Genetics and Breeding & Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration , Research Institute of Forestry, Chinese Academy of Forestry , Beijing , China
| | - Songfeng Diao
- a State Key Laboratory of Tree Genetics and Breeding & Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration , Research Institute of Forestry, Chinese Academy of Forestry , Beijing , China.,b Non-timber Forestry Research and Development Center, Chinese Academy of Forestry , Key Laboratory of Non-timber Forest Germplasm Enhancement & Utilization of State Forestry Administration , Zhengzhou , China
| | - Tong Zhang
- a State Key Laboratory of Tree Genetics and Breeding & Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration , Research Institute of Forestry, Chinese Academy of Forestry , Beijing , China
| | - Daoguo Chen
- a State Key Laboratory of Tree Genetics and Breeding & Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration , Research Institute of Forestry, Chinese Academy of Forestry , Beijing , China
| | - Caiyun He
- a State Key Laboratory of Tree Genetics and Breeding & Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration , Research Institute of Forestry, Chinese Academy of Forestry , Beijing , China
| | - Jianguo Zhang
- a State Key Laboratory of Tree Genetics and Breeding & Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration , Research Institute of Forestry, Chinese Academy of Forestry , Beijing , China.,c Collaborative Innovation Center of Sustainable Forestry in Southern China , Nanjing Forestry University , Nanjing , China
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Yazdani M, Sun Z, Yuan H, Zeng S, Thannhauser TW, Vrebalov J, Ma Q, Xu Y, Fei Z, Van Eck J, Tian S, Tadmor Y, Giovannoni JJ, Li L. Ectopic expression of ORANGE promotes carotenoid accumulation and fruit development in tomato. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:33-49. [PMID: 29729208 PMCID: PMC6330546 DOI: 10.1111/pbi.12945] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 04/04/2018] [Accepted: 04/28/2018] [Indexed: 05/10/2023]
Abstract
Carotenoids are critically important to plants and humans. The ORANGE (OR) gene is a key regulator for carotenoid accumulation, but its physiological roles in crops remain elusive. In this study, we generated transgenic tomato ectopically overexpressing the Arabidopsis wild-type OR (AtORWT ) and a 'golden SNP'-containing OR (AtORHis ). We found that AtORHis initiated chromoplast formation in very young fruit and stimulated carotenoid accumulation at all fruit developmental stages, uncoupled from other ripening activities. The elevated levels of carotenoids in the AtOR lines were distributed in the same subplastidial fractions as in wild-type tomato, indicating an adaptive response of plastids to sequester the increased carotenoids. Microscopic analysis revealed that the plastid sizes were increased in both AtORWT and AtORHis lines at early fruit developmental stages. Moreover, AtOR overexpression promoted early flowering, fruit set and seed production. Ethylene production and the expression of ripening-associated genes were also significantly increased in the AtOR transgenic fruit at ripening stages. RNA-Seq transcriptomic profiling highlighted the primary effects of OR overexpression on the genes in the processes related to RNA, protein and signalling in tomato fruit. Taken together, these results expand our understanding of OR in mediating carotenoid accumulation in plants and suggest additional roles of OR in affecting plastid size as well as flower and fruit development, thus making OR a target gene not only for nutritional biofortification of agricultural products but also for alteration of horticultural traits.
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Affiliation(s)
- Mohammad Yazdani
- Robert W. Holley Center for Agriculture and HealthUSDA‐ARSCornell UniversityIthacaNYUSA
- Plant Breeding and Genetics SectionSchool of Integrative Plant ScienceCornell UniversityIthacaNYUSA
| | - Zhaoxia Sun
- Plant Breeding and Genetics SectionSchool of Integrative Plant ScienceCornell UniversityIthacaNYUSA
- College of AgricultureInstitute of Agricultural BioengineeringShanxi Agricultural UniversityTaiguShanxiChina
| | - Hui Yuan
- Robert W. Holley Center for Agriculture and HealthUSDA‐ARSCornell UniversityIthacaNYUSA
- Plant Breeding and Genetics SectionSchool of Integrative Plant ScienceCornell UniversityIthacaNYUSA
| | - Shaohua Zeng
- Plant Breeding and Genetics SectionSchool of Integrative Plant ScienceCornell UniversityIthacaNYUSA
- Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
| | | | | | - Qiyue Ma
- Boyce Thompson InstituteCornell UniversityIthacaNYUSA
| | - Yimin Xu
- Boyce Thompson InstituteCornell UniversityIthacaNYUSA
| | - Zhangjun Fei
- Robert W. Holley Center for Agriculture and HealthUSDA‐ARSCornell UniversityIthacaNYUSA
- Boyce Thompson InstituteCornell UniversityIthacaNYUSA
| | - Joyce Van Eck
- Plant Breeding and Genetics SectionSchool of Integrative Plant ScienceCornell UniversityIthacaNYUSA
- Boyce Thompson InstituteCornell UniversityIthacaNYUSA
| | - Shiping Tian
- Key Laboratory of Plant ResourcesInstitute of BotanyChinese Academy of SciencesBeijingChina
| | - Yaakov Tadmor
- Plant Science InstituteIsraeli Agricultural Research OrganizationNewe Yaar Research CenterRamat YishaiIsrael
| | - James J. Giovannoni
- Robert W. Holley Center for Agriculture and HealthUSDA‐ARSCornell UniversityIthacaNYUSA
- Boyce Thompson InstituteCornell UniversityIthacaNYUSA
| | - Li Li
- Robert W. Holley Center for Agriculture and HealthUSDA‐ARSCornell UniversityIthacaNYUSA
- Plant Breeding and Genetics SectionSchool of Integrative Plant ScienceCornell UniversityIthacaNYUSA
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Lu P, Wang S, Grierson D, Xu C. Transcriptomic changes triggered by carotenoid biosynthesis inhibitors and role of Citrus sinensis phosphate transporter 4;2 (CsPHT4;2) in enhancing carotenoid accumulation. PLANTA 2019; 249:257-270. [PMID: 30083809 DOI: 10.1007/s00425-018-2970-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 08/01/2018] [Indexed: 06/08/2023]
Abstract
Carotenoid accumulation and chromoplast development in orange were perturbed by carotenoid inhibitors, and candidate genes were identified via transcriptomic analysis. The role of CsPHT4;2 in enhancing carotenoid accumulation was revealed. Carotenoids are important plant pigments and their accumulation can be affected by biosynthesis inhibitors, but the genes involved were largely unknown. Here, application of norflurazon (NFZ), 2-(4-chlorophenylthio)-triethylamine hydrochloride (CPTA) and clomazone for 30 days to in vitro cultured sweet orange juice vesicles caused over-accumulation of phytoene (over 1000-fold), lycopene (2.92 μg g-1 FW, none in control), and deficiency in total carotenoids (reduced to 22%), respectively. Increased carotenoids were associated with bigger chromoplasts with enlarged plastoglobules or a differently crystalline structure in NFZ, and CPTA-treated juice vesicles, respectively. Global transcriptomic changes following inhibitor treatments were profiled. Induced expression of 1-deoxy-D-xylulose 5-phosphate synthase 1 by CPTA, hydroxymethylbutenyl 4-diphosphate reductase by both NFZ and CPTA, and reduced expression of chromoplast-specific lycopene β-cyclase by CPTA, as well as several downstream genes by at least one of the three inhibitors were observed. Expression of fibrillin 11 (CsFBN11) was induced following both NFZ and CPTA treatments. Using weighted correlation network analysis, a plastid-type phosphate transporter 4;2 (CsPHT4;2) was identified as closely correlated with high-lycopene accumulation induced by CPTA. Transient over-expression of CsPHT4;2 significantly enhanced carotenoid accumulation over tenfold in 'Cara Cara' sweet orange juice vesicle-derived callus. The study provides a valuable overview of the underlying mechanisms for altered carotenoid accumulation and chromoplast development following carotenoid inhibitor treatments and sheds light on the relationship between carotenoid accumulation and chromoplast development.
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Affiliation(s)
- Pengjun Lu
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijingang Campus, Hangzhou, 310058, China
| | - Shasha Wang
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijingang Campus, Hangzhou, 310058, China
| | - Don Grierson
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijingang Campus, Hangzhou, 310058, China
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, LE12 5RD, UK
| | - Changjie Xu
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijingang Campus, Hangzhou, 310058, China.
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35
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Wang A, Chen D, Ma Q, Rose JKC, Fei Z, Liu Y, Giovannoni JJ. The tomato HIGH PIGMENT1/DAMAGED DNA BINDING PROTEIN 1 gene contributes to regulation of fruit ripening. HORTICULTURE RESEARCH 2019; 6:15. [PMID: 30729005 PMCID: PMC6355878 DOI: 10.1038/s41438-018-0093-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/22/2018] [Accepted: 09/26/2018] [Indexed: 05/07/2023]
Abstract
Fleshy fruit ripening is governed by multiple external and internal cues and accompanied by changes in color, texture, volatiles, and nutritional quality traits. While extended shelf-life and increased phytonutrients are desired, delaying ripening via genetic or postharvest means can be accompanied by reduced nutritional value. Here we report that the high pigment 1 (hp1) mutation at the UV-DAMAGED DNA BINDING PROTEIN 1 (DDB1) locus, previously shown to influence carotenoid and additional phytonutrient accumulation via altered light signal transduction, also results in delayed ripening and firmer texture, resulting at least in part from decreased ethylene evolution. Transcriptome analysis revealed multiple ethylene biosynthesis and signaling-associated genes downregulated in hp1. Furthermore, the hp1 mutation impedes softening of the pericarp, placenta, columella as well as the whole fruit, in addition to reduced expression of the FRUITFUL2 (FUL2) MADS-box transcription factor and xyloglucan endotransglucosylase/hydrolase 5 (XTH5). These results indicate that DDB1 influences a broader range of fruit development and ripening processes than previously thought and present an additional genetic target for increasing fruit quality and shelf-life.
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Affiliation(s)
- Anquan Wang
- School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, 230009 China
- Boyce Thompson Institute, Cornell University, Ithaca, NY 14853 USA
| | - Danyang Chen
- School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, 230009 China
| | - Qiyue Ma
- Boyce Thompson Institute, Cornell University, Ithaca, NY 14853 USA
| | - Jocelyn K. C. Rose
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853 USA
| | - Zhangjun Fei
- Boyce Thompson Institute, Cornell University, Ithaca, NY 14853 USA
- United States Department of Agriculture, Robert W. Holley Center, Cornell University, Ithaca, NY 14853 USA
| | - Yongsheng Liu
- School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, 230009 China
| | - James J. Giovannoni
- Boyce Thompson Institute, Cornell University, Ithaca, NY 14853 USA
- United States Department of Agriculture, Robert W. Holley Center, Cornell University, Ithaca, NY 14853 USA
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cis-carotene biosynthesis, evolution and regulation in plants: The emergence of novel signaling metabolites. Arch Biochem Biophys 2018; 654:172-184. [PMID: 30030998 DOI: 10.1016/j.abb.2018.07.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/11/2018] [Accepted: 07/13/2018] [Indexed: 01/23/2023]
Abstract
Carotenoids are isoprenoid pigments synthesised by plants, algae, photosynthetic bacteria as well as some non-photosynthetic bacteria, fungi and insects. Abundant carotenoids found in nature are synthesised via a linear route from phytoene to lycopene after which the pathway bifurcates into cyclised α- and β-carotenes. Plants evolved additional steps to generate a diversity of cis-carotene intermediates, which can accumulate in fruits or tissues exposed to an extended period of darkness. Enzymatic or oxidative cleavage, light-mediated photoisomerization and histone modifications can affect cis-carotene accumulation. cis-carotene accumulation has been linked to the production of signaling metabolites that feedback and forward to regulate nuclear gene expression. When cis-carotenes accumulate, plastid biogenesis and operational control can become impaired. Carotenoid derived metabolites and phytohormones such as abscisic acid and strigolactones can fine-tune cellular homeostasis. There is a hunt to identify a novel cis-carotene derived apocarotenoid signal and to elucidate the molecular mechanism by which it facilitates communication between the plastid and nucleus. In this review, we describe the biosynthesis and evolution of cis-carotenes and their links to regulatory switches, as well as highlight how cis-carotene derived apocarotenoid signals might control organelle communication, physiological and developmental processes in response to environmental change.
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Li KT, Zhang J, Kang YH, Chen MC, Song TT, Geng H, Tian J, Yao YC. McMYB10 Modulates the Expression of a Ubiquitin Ligase, McCOP1 During Leaf Coloration in Crabapple. FRONTIERS IN PLANT SCIENCE 2018; 9:704. [PMID: 29915606 PMCID: PMC5994411 DOI: 10.3389/fpls.2018.00704] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 05/08/2018] [Indexed: 05/23/2023]
Abstract
In higher plants, anthocyanins are protective secondary metabolites, which contribute to the color of leaves, stems, flowers, and fruits, and have been found to have an antioxidant role in human health. In this study, we determined the expression of McMYB10 and its specific E3 ubiquitin ligase, McCOP1, in crabapple leaves during the course of a day and in five leaf development stages. Interestingly, the results showed that the transcription level of McCOP1 genes was higher in daylight than at night, and the transcripts of McMYB10 presented a positive correlation with the transcription of McCOP1-1 and McCOP1-2 and anthocyanin accumulation in a crabapple cultivar with red-colored leaves. Several MYB transcription factor (TF) binding sites of the MYBCORE type were found in the McCOP1-1 and McCOP1-2 promoters, and we deduced that there may be a relationship between McMYB10 and McCOP1-1 and McCOP1-2 at the transcriptional level. Yeast one hybrid (Y1H) and electrophoretic mobility shift assays (EMSA) demonstrated that the McMYB10 TF binds specifically to the promoter of McCOP1-1 and McCOP1-2. Furthermore, increased levels of McMYB10 promoted anthocyanin biosynthesis and the expression level of McCOP1-1 and McCOP1-2 in crabapple leaves during continuous light treatments, and overexpression or silencing of McMYB10 in crabapple leaves and apple fruits also result in an increase or decrease, respectively, in the expression of McCOP1-1 and McCOP1-2 and in anthocyanin biosynthesis. Our results reveal a new self-regulation mechanism in where McMYB10 modulates its own expression by activating McCOP1-1 and McCOP1-2 expression to promote ubiquitination of the McMYB10 protein by McCOP1.
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Affiliation(s)
- Ke-Ting Li
- Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing University of Agriculture, Beijing, China
- Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees, Beijing, China
| | - Jie Zhang
- Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing University of Agriculture, Beijing, China
- Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees, Beijing, China
| | - Yan-Hui Kang
- Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing University of Agriculture, Beijing, China
- Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees, Beijing, China
| | - Meng-Chen Chen
- Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing University of Agriculture, Beijing, China
- Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees, Beijing, China
| | - Ting-Ting Song
- Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing University of Agriculture, Beijing, China
- Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees, Beijing, China
| | - Hui Geng
- Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing University of Agriculture, Beijing, China
- Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees, Beijing, China
| | - Ji Tian
- Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing University of Agriculture, Beijing, China
- Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees, Beijing, China
| | - Yun-Cong Yao
- Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory of New Technology in Agricultural Application of Beijing, Beijing University of Agriculture, Beijing, China
- Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees, Beijing, China
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Rodriguez-Concepcion M, Avalos J, Bonet ML, Boronat A, Gomez-Gomez L, Hornero-Mendez D, Limon MC, Meléndez-Martínez AJ, Olmedilla-Alonso B, Palou A, Ribot J, Rodrigo MJ, Zacarias L, Zhu C. A global perspective on carotenoids: Metabolism, biotechnology, and benefits for nutrition and health. Prog Lipid Res 2018; 70:62-93. [PMID: 29679619 DOI: 10.1016/j.plipres.2018.04.004] [Citation(s) in RCA: 458] [Impact Index Per Article: 76.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 04/16/2018] [Accepted: 04/18/2018] [Indexed: 12/22/2022]
Abstract
Carotenoids are lipophilic isoprenoid compounds synthesized by all photosynthetic organisms and some non-photosynthetic prokaryotes and fungi. With some notable exceptions, animals (including humans) do not produce carotenoids de novo but take them in their diets. In photosynthetic systems carotenoids are essential for photoprotection against excess light and contribute to light harvesting, but perhaps they are best known for their properties as natural pigments in the yellow to red range. Carotenoids can be associated to fatty acids, sugars, proteins, or other compounds that can change their physical and chemical properties and influence their biological roles. Furthermore, oxidative cleavage of carotenoids produces smaller molecules such as apocarotenoids, some of which are important pigments and volatile (aroma) compounds. Enzymatic breakage of carotenoids can also produce biologically active molecules in both plants (hormones, retrograde signals) and animals (retinoids). Both carotenoids and their enzymatic cleavage products are associated with other processes positively impacting human health. Carotenoids are widely used in the industry as food ingredients, feed additives, and supplements. This review, contributed by scientists of complementary disciplines related to carotenoid research, covers recent advances and provides a perspective on future directions on the subjects of carotenoid metabolism, biotechnology, and nutritional and health benefits.
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Affiliation(s)
| | - Javier Avalos
- Department of Genetics, Universidad de Sevilla, 41012 Seville, Spain
| | - M Luisa Bonet
- Laboratory of Molecular Biology, Nutrition and Biotechnology, Universitat de les Illes Balears, 07120 Palma de Mallorca, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 07120 Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), 07120 Palma de Mallorca, Spain
| | - Albert Boronat
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, 08193 Barcelona, Spain; Department of Biochemistry and Molecular Biomedicine, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Lourdes Gomez-Gomez
- Instituto Botánico, Universidad de Castilla-La Mancha, 02071 Albacete, Spain
| | - Damaso Hornero-Mendez
- Department of Food Phytochemistry, Instituto de la Grasa (IG-CSIC), 41013 Seville, Spain
| | - M Carmen Limon
- Department of Genetics, Universidad de Sevilla, 41012 Seville, Spain
| | - Antonio J Meléndez-Martínez
- Food Color & Quality Laboratory, Area of Nutrition & Food Science, Universidad de Sevilla, 41012 Seville, Spain
| | | | - Andreu Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology, Universitat de les Illes Balears, 07120 Palma de Mallorca, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 07120 Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), 07120 Palma de Mallorca, Spain
| | - Joan Ribot
- Laboratory of Molecular Biology, Nutrition and Biotechnology, Universitat de les Illes Balears, 07120 Palma de Mallorca, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 07120 Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), 07120 Palma de Mallorca, Spain
| | - Maria J Rodrigo
- Institute of Agrochemistry and Food Technology (IATA-CSIC), 46980 Valencia, Spain
| | - Lorenzo Zacarias
- Institute of Agrochemistry and Food Technology (IATA-CSIC), 46980 Valencia, Spain
| | - Changfu Zhu
- Department of Plant Production and Forestry Science, Universitat de Lleida-Agrotecnio, 25198 Lleida, Spain
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Massaretto IL, Albaladejo I, Purgatto E, Flores FB, Plasencia F, Egea-Fernández JM, Bolarin MC, Egea I. Recovering Tomato Landraces to Simultaneously Improve Fruit Yield and Nutritional Quality Against Salt Stress. FRONTIERS IN PLANT SCIENCE 2018; 9:1778. [PMID: 30555505 PMCID: PMC6284034 DOI: 10.3389/fpls.2018.01778] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/15/2018] [Indexed: 05/18/2023]
Abstract
Salt stress generally induces important negative effects on tomato (Solanum lycopersicum) productivity but it may also cause a positive effect improving fruit quality, one of the greatest challenges in nowadays agriculture. Because of the genetic erosion of this horticultural species, the recovery of locally adapted landraces could play a very important role in avoiding, at least partially, production losses and simultaneously improving fruit quality. Two tomato landraces endemic of the Spanish Southeast area, characterized by the harsh climatic conditions of the Mediterranean basin, have been selected: Negro Yeste (NY) characterized by its dark-red colored fruits and Verdal (V), which fruits did not achieve the characteristic red color at ripening. Here the agronomic, physiological, and metabolic responses of these landraces were compared with the reference tomato commercial cv. Moneymaker (MM), in plants grown without salt (control) and with salt stress (100 mM NaCl) for 70 days. The higher salt tolerance of both landraces was mainly reflected in the fruit number, as NY only reduced the fruit number in salt stress by 20% whereas in MM it was reduced till 43%, and in V the fruit number even showed an increase of 33% with salt stress. An important fruit quality parameter is soluble solids content, which increases induced by salinity were significantly higher in both landraces (60 and 78% in NY and V, respectively) compared with MM (34%). Although both landraces showed a similar response in relation to the high chlorophyll accumulation detected in their fruits, the fruit metabolic profiles were very different. Increased carotenoids levels were found in NY fruits, especially lycopene in ripe fruit, and this characteristic was observed in both control and salt stress. Contrarily, the carotenoid biosynthesis pathway was disrupted in V ripe fruits, but other metabolites, such as Ca2+, mannose, formate, and glutamate were accumulated. These results highlight the potential of tomato landraces to improve nutritional fruit quality and maintain fruit yield stability under salt stress.
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Affiliation(s)
- Isabel L. Massaretto
- Department of Stress Biology and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, Murcia, Spain
- Department of Food Science and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Food Research Center (FoRC-CEPID), University of São Paulo, São Paulo, Brazil
| | - Irene Albaladejo
- Department of Stress Biology and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, Murcia, Spain
| | - Eduardo Purgatto
- Department of Food Science and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Food Research Center (FoRC-CEPID), University of São Paulo, São Paulo, Brazil
| | - Francisco B. Flores
- Department of Stress Biology and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, Murcia, Spain
| | - Félix Plasencia
- Department of Stress Biology and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, Murcia, Spain
| | | | - Maria C. Bolarin
- Department of Stress Biology and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, Murcia, Spain
| | - Isabel Egea
- Department of Stress Biology and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, Murcia, Spain
- *Correspondence: Isabel Egea
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