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Mayobre C, Garcia-Mas J, Pujol M. A matter of smell: The complex regulation of aroma production in melon. Food Chem 2024; 460:140640. [PMID: 39096801 DOI: 10.1016/j.foodchem.2024.140640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 07/11/2024] [Accepted: 07/23/2024] [Indexed: 08/05/2024]
Abstract
Melon fruit flavor is one of the most valuable traits for consumers. Aroma, formed by volatile organic compounds (VOCs), is a major component of flavor but has been neglected in breeding programs because of its complex regulation. Although the genetic regulation of VOCs biosynthesis is not fully understood, several advances have been recently achieved. VOCs originate from the degradation of fatty acids, aminoacids and terpenes, and the role of newly described enzymes, transcription factors and putative regulators is here discussed. Furthermore, ethylene plays a key role in fruit aroma production in melon, triggering the conversion of green-flavored aldehydes into fruity-flavored esters. A current challenge is to understand the ethylene-independent regulation of VOCs formation. Environmental conditions and human processing can also shape the melon volatile profile, and future research should focus on studying the effect of climate change in aroma formation.
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Affiliation(s)
- Carlos Mayobre
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Jordi Garcia-Mas
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, Bellaterra, 08193 Barcelona, Spain; Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Edifici CRAG, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
| | - Marta Pujol
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, Bellaterra, 08193 Barcelona, Spain; Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Edifici CRAG, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
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2
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Zhao H, Zhang S, Ma D, Liu Z, Qi P, Wang Z, Di S, Wang X. Review of fruits flavor deterioration in postharvest storage: Odorants, formation mechanism and quality control. Food Res Int 2024; 182:114077. [PMID: 38519167 DOI: 10.1016/j.foodres.2024.114077] [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: 11/23/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 03/24/2024]
Abstract
Fruits flavor deterioration is extremely likely to occur during post-harvest storage, which not only damages quality but also seriously affects its market value. This work focuses on the study of fruits deterioration odorants during storage by describing their chemical compositions (i.e., alcohols, aldehydes, acids, and sulfur-containing compounds). Besides, the specific flavor deterioration mechanisms (i.e., fermentation metabolism, lipid oxidation, and amino acid degradation) inducing by factors (temperature, oxygen, microorganisms, ethylene) are summarized. Moreover, quality control strategies to mitigate fruits flavor deterioration by physical (temperature control, hypobaric treatment, UV-C, CA) and chemical (1-MCP, MT, NO, MeJA) techniques are also proposed. This review will provide useful references for fruits flavor control technologies development.
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Affiliation(s)
- Huiyu Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Suling Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Di Ma
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Zhenzhen Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Peipei Qi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Zhiwei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Shanshan Di
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China.
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3
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Javia BM, Gadhvi MS, Vyas SJ, Ghelani A, Wirajana N, Dudhagara DR. A review on L-methioninase in cancer therapy: Precision targeting, advancements and diverse applications for a promising future. Int J Biol Macromol 2024; 265:130997. [PMID: 38508568 DOI: 10.1016/j.ijbiomac.2024.130997] [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: 01/13/2024] [Revised: 03/04/2024] [Accepted: 03/17/2024] [Indexed: 03/22/2024]
Abstract
Cancer remains a global health challenge, demanding novel therapeutic options due to the debilitating side effects of conventional treatments on healthy tissues. The review highlights the potential of L-methioninase, a pyridoxal-5-phosphate (PLP)-dependent enzyme, as a promising avenue in alternative cancer therapy. L-methioninase offers a unique advantage, its ability to selectively target and inhibit the growth of cancer cells without harming healthy cells. This selectivity arises because tumor cells lack an essential enzyme called methionine synthase, which healthy cells use to make the vital amino acid L-methionine. Several sources harbor L-methioninase, including bacteria, fungi, plants, and protozoa. Future research efforts can explore and exploit this diverse range of sources to improve the therapeutic potential of L-methioninase in the fight against cancer. Despite challenges, research actively explores microbial L-methioninase for its anticancer potential. This review examines the enzyme's side effects, advancements in combination therapies, recombinant technologies, polymer conjugation and novel delivery methods like nanoparticles, while highlighting the success of oral administration in preclinical trials. Beyond its promising role in cancer therapy, L-methioninase holds potential applications in food science, antioxidants, and various health concerns like diabetes, cardiovascular issues, and neurodegenerative diseases. This review provides a piece of current knowledge and future prospects of L-methioninase, exploring its diverse therapeutic potential.
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Affiliation(s)
- Bhumi M Javia
- Department of Life Sciences, Bhakta Kavi Narsinh Mehta University, Khadiya, 362263 Junagadh, Gujarat, India
| | - Megha S Gadhvi
- Department of Life Sciences, Bhakta Kavi Narsinh Mehta University, Khadiya, 362263 Junagadh, Gujarat, India
| | - Suhas J Vyas
- Department of Life Sciences, Bhakta Kavi Narsinh Mehta University, Khadiya, 362263 Junagadh, Gujarat, India
| | - Anjana Ghelani
- Shree Ramkrishna Institute of Computer Education and Applied Sciences, Surat 395 001, Gujarat, India
| | - Nengah Wirajana
- Faculty of Mathematics and Natural Sciences, Udayana University, Jimbaran Campus, Kuta-Badung, Bali, Indonesia
| | - Dushyant R Dudhagara
- Department of Life Sciences, Bhakta Kavi Narsinh Mehta University, Khadiya, 362263 Junagadh, Gujarat, India.
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4
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Mayobre C, Santo Domingo M, Özkan EN, Fernández-Borbolla A, Ruiz-Lasierra J, Garcia-Mas J, Pujol M. Genetic regulation of volatile production in two melon introgression line collections with contrasting ripening behavior. HORTICULTURE RESEARCH 2024; 11:uhae020. [PMID: 38469382 PMCID: PMC10925849 DOI: 10.1093/hr/uhae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 01/10/2024] [Indexed: 03/13/2024]
Abstract
The importance of melon aroma in determining fruit quality has been highlighted in recent years. The fruit volatile profile is influenced by the type of fruit ripening. Non-climacteric fruits contain predominantly aldehydes, while climacteric fruits mainly produce esters. Several genes have been described to participate in volatile organic compounds (VOCs) biosynthesis pathways, but knowledge in this area is still incomplete. In this work we analysed the volatile profile of two reciprocal Introgression Line (IL) collections generated from a cross between 'Piel de Sapo' (PS) and 'Védrantais' (VED) melons, differing in their aroma profile and ripening behaviour. SPME GC-MS was performed to identify genes responsible for VOCs formation. More than 1000 QTLs for many volatiles were detected taken together both populations. Introgressions on chromosomes 3, 5, 6, 7 and 8 modified ester-aldehyde balance and were correlated to ripening changes in both genetic backgrounds. Some previously identified QTLs for fruit ripening might be involved in these phenotypes, such as ETHQV8.1 on chromosome 8 and ETHQV6.3 on chromosome 6. PS alleles on chromosomes 2, 6, 10 and 11 were found to increase ester content when introgressed in VED melons. Terpenes showed to be affected by several genomic regions not related to ripening. In addition, several candidate genes have been hypothesized to be responsible for some of the QTLs detected. The analysis of volatile compounds in two reciprocal IL collections has increased our understanding of the relationship between ripening and aroma and offers valuable plant material to improve food quality in melon breeding programs.
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Affiliation(s)
- Carlos Mayobre
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Miguel Santo Domingo
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Elif Nur Özkan
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Andrés Fernández-Borbolla
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Javier Ruiz-Lasierra
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Jordi Garcia-Mas
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Marta Pujol
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
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Camalle MD, Pivonia S, Zurgil U, Fait A, Tel-Zur N. Rootstock identity in melon-pumpkin graft combinations determines fruit metabolite profile. FRONTIERS IN PLANT SCIENCE 2023; 13:1024588. [PMID: 36762178 PMCID: PMC9907459 DOI: 10.3389/fpls.2022.1024588] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 12/28/2022] [Indexed: 06/18/2023]
Abstract
Grafting has the potential to improve melon fruit yield and quality, but it is currently held that a lack of compatibility between the rootstock and scion compromises such an effect. To throw light on this subject, we studied melon-pumpkin graft combinations with different levels of compatibility to assess to the effect of the rootstock identity on melon fruit yield and quality, including total fruit ortho-diphenols, total flavonoids, and primary fruit metabolites. Melon cv. 'Kiran' (Ki) was grafted onto three pumpkin rootstocks, 'TZ-148' (TZ), 'Shimshon' (Sh), and '53006' (r53), characterized by high, moderate, and low compatibility, respectively. The non-grafted melon cultivar Ki was used as the control. The incompatible combination Ki/r53 gave the lowest fruit yield and the lowest average fruit weight. In that combination, the content of total ortho-diphenols increased vs. Ki and Ki/TZ and that of total flavonoids decreased vs. Ki/Sh. In addition, concentrations of the amino acids, glutamate, methionine, valine, alanine, glycine, and serine, increased in the pulp of the two compatible combinations, i.e., Ki/TZ and Ki/Sh, suggesting that rootstock identity and compatibility with melon Ki scion modulated amino acid synthesis. Our results show an association between rootstock identity (and level of compatibility with the scion) and an enhancement of fruit nutritional values, i.e., high concentrations of organic acids (determined as citrate, malate, fumarate, and succinate) and soluble carbohydrates (sucrose) were recorded in the pulp of the two compatible combinations, i.e., Ki/TZ and Ki/Sh.
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Affiliation(s)
- Maria Dolores Camalle
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer, Israel
| | - Shimon Pivonia
- Arava Research and Development Center, Yair Experimental Station, Central and Northern Arava, Hazeva, Israel
| | - Udi Zurgil
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer, Israel
| | - Aaron Fait
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer, Israel
| | - Noemi Tel-Zur
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer, Israel
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6
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Thorough Characterization of ETHQB3.5, a QTL Involved in Melon Fruit Climacteric Behavior and Aroma Volatile Composition. Foods 2023; 12:foods12020376. [PMID: 36673468 PMCID: PMC9858179 DOI: 10.3390/foods12020376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
The effect of the QTL involved in climacteric ripening ETHQB3.5 on the fruit VOC composition was studied using a set of Near-Isogenic Lines (NILs) containing overlapping introgressions from the Korean accession PI 16375 on the chromosome 3 in the climacteric 'Piel de Sapo' (PS) genetic background. ETHQB3.5 was mapped in an interval of 1.24 Mb that contained a NAC transcription factor. NIL fruits also showed differences in VOC composition belonging to acetate esters, non-acetate esters, and sulfur-derived families. Cosegregation of VOC composition (23 out of 48 total QTLs were mapped) and climacteric ripening was observed, suggesting a pleiotropic effect of ETHQB3.5. On the other hand, other VOCs (mainly alkanes, aldehydes, and ketones) showed a pattern of variation independent of ETHQB3.5 effects, indicating the presence of other genes controlling non-climacteric ripening VOCs. Network correlation analysis and hierarchical clustering found groups of highly correlated compounds and confirmed the involvement of the climacteric differences in compound classes and VOC differences. The modification of melon VOCs may be achieved with or without interfering with its physiological behavior, but it is likely that high relative concentrations of some type of ethylene-dependent esters could be achieved in climacteric cultivars.
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Zhang H, Zhu X, Xu R, Yuan Y, Abugu MN, Yan C, Tieman D, Li X. Postharvest chilling diminishes melon flavor via effects on volatile acetate ester biosynthesis. FRONTIERS IN PLANT SCIENCE 2023; 13:1067680. [PMID: 36684781 PMCID: PMC9853462 DOI: 10.3389/fpls.2022.1067680] [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: 10/12/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
In postharvest handling systems, refrigeration can extend fruit shelf life and delay decay via slowing ripening progress; however, it selectively alters the biosynthesis of flavor-associated volatile organic compounds (VOCs), which results in reduced flavor quality. Volatile esters are major contributors to melon fruit flavor. The more esters, the more consumers enjoy the melon fruit. However, the effects of chilling on melon flavor and volatiles associated with consumer liking are yet to be fully understood. In the present study, consumer sensory evaluation showed that chilling changed the perception of melon fruit. Total ester content was lower after chilling, particularly volatile acetate esters (VAEs). Transcriptomic analysis revealed that transcript abundance of multiple flavor-associated genes in fatty acid and amino acid pathways was reduced after chilling. Additionally, expression levels of the transcription factors (TFs), such as NOR, MYB, and AP2/ERF, also were substantially downregulated, which likely altered the transcript levels of ester-associated pathway genes during cold storage. VAE content and expression of some key genes recover after transfer to room temperature. Therefore, chilling-induced changes of VAE profiles were consistent with expression patterns of some pathway genes that encode specific fatty acid- and amino acid-mobilizing enzymes as well as TFs involved in fruit ripening, metabolic regulation, and hormone signaling.
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Affiliation(s)
- Huijun Zhang
- School of Life Science, Huaibei Normal University, Huaibei, Anhui, China
| | - Xiuxiu Zhu
- School of Life Science, Huaibei Normal University, Huaibei, Anhui, China
| | - Runzhe Xu
- School of Life Science, Huaibei Normal University, Huaibei, Anhui, China
| | - Yushu Yuan
- School of Life Science, Huaibei Normal University, Huaibei, Anhui, China
| | - Modesta N. Abugu
- Horticultural Sciences, North Carolina State University, Raleigh, NC, United States
| | - Congsheng Yan
- Horticultural Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Denise Tieman
- Horticultural Sciences, Genetics Institute, University of Florida, Gainesville, FL, United States
| | - Xiang Li
- Horticultural Sciences, Genetics Institute, University of Florida, Gainesville, FL, United States
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8
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Liu X, Zhang C, Wang H, Wang Y, Zhu D, Liu H. Ultrasonic treatment maintains the flavor of the melon juice. ULTRASONICS SONOCHEMISTRY 2023; 92:106284. [PMID: 36603464 PMCID: PMC9826901 DOI: 10.1016/j.ultsonch.2022.106284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/02/2022] [Accepted: 12/27/2022] [Indexed: 06/07/2023]
Abstract
Thermal treatment usually leads to the flavor deterioration of melon juice. This study was initiated to evaluate the retention effect of ultrasonic (US) and ultra-high pressure (UHP) on volatile components of melon juice by gas chromatography-mass spectrometer (GC-MS) and gas chromatography-ion mobility spectrometry (GC-IMS). The electronic nose, electronic tongue, and GC-IMS analysis showed that US was much better way to contain the flavor of melon juice than UHP was does. The correlation coefficient between the US and the control was as high as 0.99. The concentration of characteristic aroma components in melon juice after ultrasonic treatment was 2.77 times and 3.02 times higher than that in the control and UHP, respectively. Moreover, the US treatment gave no significant difference in the total soluble solids, pH, and color of the juice. And it dramatically enhanced the flavor profile of melon juice.
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Affiliation(s)
- Xiao Liu
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, China; Institute of Agri-Food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Chao Zhang
- Institute of Agri-Food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Beijing 100097, China
| | - Hui Wang
- Institute of Agri-Food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Beijing 100097, China
| | - Yubin Wang
- Institute of Agri-Food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Beijing 100097, China
| | - Danshi Zhu
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - He Liu
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China.
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Kaleem MM, Nawaz MA, Ding X, Wen S, Shireen F, Cheng J, Bie Z. Comparative analysis of pumpkin rootstocks mediated impact on melon sensory fruit quality through integration of non-targeted metabolomics and sensory evaluation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 192:320-330. [PMID: 36302334 DOI: 10.1016/j.plaphy.2022.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Melon fruits are popular because of sweet taste and pleasant aroma. Grafting has been extensively used for melons to alleviate abiotic stresses and control soil borne diseases. However, use of grafting for vegetable fruit quality improvement is less studies. In modern age fruit quality particularly sensory quality characteristics have key importance from consumer eye lens. We performed liquid chromatography-mass spectrometry and metabonomic analysis to examine sensory fruit quality of melon grafted onto ten different pumpkin rootstocks. Bases on the result of our study, 478 metabolites were detected and 184 metabolites consisting of lipids, amino acids and organic oxygen compounds were differentially expressed in grafted melon fruits. The results from metabolomic, physiochemical and sensory analysis explain the differences in melon fruit flavor from two contrasting rootstocks. In conclusion the fruits from Tianzhen No. 1 rootstock exhibited better organoleptic characteristics and higher soluble sugars content [glucose (19.87 mg/g), fructose (19.68 mg/g) and sucrose (169.45 mg/g)] compared with other rootstocks used in this study. Moreover, the contents of bitterness causing amino acids such as L-arginine, L-asparagine, Histidinyl-histidine and Acetyl-DL-valine were found lower in Tianzhen No. 1-grafted melon fruits compared with Sizhuang No. 12-grafted melon fruits. These fruit quality characteristics made Tianzhen No. 1 rootstock suitable for commercial cultivation of Yuniang melon.
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Affiliation(s)
- Muhammad Mohsin Kaleem
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University/ Key Laboratory of Horticultural Plant Biology, Ministry of Education, Wuhan, 430070, PR China.
| | - Muhammad Azher Nawaz
- Department of Horticulture, College of Agriculture, University of Sargodha, Sargodha, 40100, Pakistan.
| | - Xiaochen Ding
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University/ Key Laboratory of Horticultural Plant Biology, Ministry of Education, Wuhan, 430070, PR China.
| | - Suying Wen
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University/ Key Laboratory of Horticultural Plant Biology, Ministry of Education, Wuhan, 430070, PR China.
| | - Fareeha Shireen
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University/ Key Laboratory of Horticultural Plant Biology, Ministry of Education, Wuhan, 430070, PR China; Institute of Horticultural Sciences, University of Agriculture, Faisalabad, 38000, Pakistan.
| | - Jintao Cheng
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University/ Key Laboratory of Horticultural Plant Biology, Ministry of Education, Wuhan, 430070, PR China.
| | - Zhilong Bie
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University/ Key Laboratory of Horticultural Plant Biology, Ministry of Education, Wuhan, 430070, PR China.
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10
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Maoz I, Lewinsohn E, Gonda I. Amino acids metabolism as a source for aroma volatiles biosynthesis. CURRENT OPINION IN PLANT BIOLOGY 2022; 67:102221. [PMID: 35533493 DOI: 10.1016/j.pbi.2022.102221] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/22/2022] [Accepted: 03/26/2022] [Indexed: 06/14/2023]
Abstract
Aroma volatiles are essential for plant ecological fitness and reproduction. Plants produce and use volatiles to attract pollinators and seed dispersers, repel herbivores and recruit their natural enemies, and communicate with other plants. Amino acids and their biosynthetic intermediates play key roles as precursors for the biosynthesis of plant volatiles. Different plants utilize different strategies and biosynthetic pathways to meet their specific biological needs. This review focuses on the different biosynthetic pathways that plants utilize to form amino acid-derived aroma volatiles, emphasizing their common and unique aspects and stressing the importance of the limiting enzymes residing in the primary-specialized metabolism interface. We also briefly review how biotechnology has used this interface and point to promising future directions for improving the quality of agricultural produce and the production of key volatiles.
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Affiliation(s)
- Itay Maoz
- Department of Postharvest Science, Agricultural Research Organization, Volcani Institute, Rishon LeZion, Israel.
| | - Efraim Lewinsohn
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay, Israel.
| | - Itay Gonda
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Institute, Ramat Yishay, Israel.
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11
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Bizzio LN, Tieman D, Munoz PR. Branched-Chain Volatiles in Fruit: A Molecular Perspective. FRONTIERS IN PLANT SCIENCE 2022; 12:814138. [PMID: 35154212 PMCID: PMC8829073 DOI: 10.3389/fpls.2021.814138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 12/23/2021] [Indexed: 05/03/2023]
Abstract
Branched-chain volatiles (BCVs) constitute an important family of fruit volatile metabolites essential to the characteristic flavor and aroma profiles of many edible fruits. Yet in contrast to other groups of volatile organic compounds important to fruit flavor such as terpenoids, phenylpropanoids, and oxylipins, the molecular biology underlying BCV biosynthesis remains poorly understood. This lack of knowledge is a barrier to efforts aimed at obtaining a more comprehensive understanding of fruit flavor and aroma and the biology underlying these complex phenomena. In this review, we discuss the current state of knowledge regarding fruit BCV biosynthesis from the perspective of molecular biology. We survey the diversity of BCV compounds identified in edible fruits as well as explore various hypotheses concerning their biosynthesis. Insights from branched-chain precursor compound metabolism obtained from non-plant organisms and how they may apply to fruit BCV production are also considered, along with potential avenues for future research that might clarify unresolved questions regarding BCV metabolism in fruits.
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Affiliation(s)
- Lorenzo N. Bizzio
- Blueberry Breeding and Genomics Lab, Department of Horticultural Sciences, University of Florida, Gainesville, FL, United States
- Plant Molecular and Cellular Biology Program, University of Florida, Gainesville, FL, United States
| | - Denise Tieman
- Department of Horticultural Sciences, University of Florida, Gainesville, FL, United States
| | - Patricio R. Munoz
- Blueberry Breeding and Genomics Lab, Department of Horticultural Sciences, University of Florida, Gainesville, FL, United States
- Plant Molecular and Cellular Biology Program, University of Florida, Gainesville, FL, United States
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12
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Ma L, Wang Q, Zheng Y, Guo J, Yuan S, Fu A, Bai C, Zhao X, Zheng S, Wen C, Guo S, Gao L, Grierson D, Zuo J, Xu Y. Cucurbitaceae genome evolution, gene function and molecular breeding. HORTICULTURE RESEARCH 2022; 9:uhab057. [PMID: 35043161 PMCID: PMC8969062 DOI: 10.1093/hr/uhab057] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/28/2021] [Indexed: 05/07/2023]
Abstract
The Cucurbitaceae is one of the most genetically diverse plant families in the world. Many of them are important vegetables or medicinal plants and are widely distributed worldwide. The rapid development of sequencing technologies and bioinformatic algorithms has enabled the generation of genome sequences of numerous important Cucurbitaceae species. This has greatly facilitated research on gene identification, genome evolution, genetic variation and molecular breeding of cucurbit crops. So far, genome sequences of 18 different cucurbit species belonging to tribes Benincaseae, Cucurbiteae, Sicyoeae, Momordiceae and Siraitieae have been deciphered. This review summarizes the genome sequence information, evolutionary relationship, and functional genes associated with important agronomic traits (e.g., fruit quality). The progress of molecular breeding in cucurbit crops and prospects for future applications of Cucurbitaceae genome information are also discussed.
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Affiliation(s)
- Lili Ma
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- Department of Food Biotechnology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Qing Wang
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Yanyan Zheng
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Jing Guo
- Ministry of Education Key Laboratory of Biodiversity Sciences and Ecological Engineering and State Key Laboratory of Genetic Engineering, Institute of Biodiversity Sciences and Institute of Plant Biology, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Shuzhi Yuan
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Anzhen Fu
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Chunmei Bai
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Xiaoyan Zhao
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Shufang Zheng
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Changlong Wen
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Shaogui Guo
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Lipu Gao
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Donald Grierson
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Jinhua Zuo
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Yong Xu
- Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China) of Ministry of Agriculture, Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture, Beijing Vegetable Research Center, Institute of Agro-Products Processing and Food Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
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13
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Cheng Y, Li G, Wu H, Huang L, Wang H. Identification of Light-Induced Key Off-Flavors in Ponkan Mandarin Juice Using MDGC-MS/O and GC-MS/PFPD. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14259-14269. [PMID: 34784211 DOI: 10.1021/acs.jafc.1c05465] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Light-induced off-flavor compounds in Ponkan mandarin juice were investigated during its shelf-life by headspace solid-phase microextraction multidimensional gas chromatography-mass spectrometry/olfactometry (MDGC-MS/O) and a GC-MS/pulsed flame photometric detector (GC-MS/PFPD). A total of 34 aroma-active compounds with flavor dilution (FD) factors from 2 to 128 were tentatively identified by aroma extract dilution analysis-MDGC-MS/O. Among them, a light-induced off-flavor compound with a high FD factor, methional (cooked potato), was positively identified in the Ponkan mandarin juice at the end of the shelf-life. In addition, 11 volatile sulfur compounds (VSCs), including 6 screened shelf-markers (variable identification, VID > 0.80), were identified in Ponkan mandarin juice by a sulfur detector (PFPD). Four VSCs exhibited odor activity values exceeding 1. Three VSCs (methanethiol, dimethyl trisulfide, and methional) were confirmed as key light-induced off-flavor compounds in Ponkan mandarin juice based on addition/omission experiments. Furthermore, light irradiation accelerated the degradation of sulfur precursors (methionine and MMS) and the formation of these VSCs leading to an increase in off-flavor intensity.
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Affiliation(s)
- Yujiao Cheng
- Citrus Research Institute, Southwest University, Chongqing 400712, China
- National Citrus Engineering Research Center, Chinese Academy of Agricultural Sciences, Chongqing 400712, China
| | - Guijie Li
- Citrus Research Institute, Southwest University, Chongqing 400712, China
- National Citrus Engineering Research Center, Chinese Academy of Agricultural Sciences, Chongqing 400712, China
| | - Houjiu Wu
- Citrus Research Institute, Southwest University, Chongqing 400712, China
- National Citrus Engineering Research Center, Chinese Academy of Agricultural Sciences, Chongqing 400712, China
| | - Linhua Huang
- Citrus Research Institute, Southwest University, Chongqing 400712, China
- National Citrus Engineering Research Center, Chinese Academy of Agricultural Sciences, Chongqing 400712, China
| | - Hua Wang
- Citrus Research Institute, Southwest University, Chongqing 400712, China
- National Citrus Engineering Research Center, Chinese Academy of Agricultural Sciences, Chongqing 400712, China
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14
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Metrani R, Jayaprakasha GK, Patil BS. Optimization of Experimental Parameters and Chemometrics Approach to Identify Potential Volatile Markers in Seven Cucumis melo Varieties Using HS–SPME–GC–MS. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02119-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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15
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Sato M, Ikram MMM, Pranamuda H, Agusta W, Putri SP, Fukusaki E. Characterization of five Indonesian mangoes using gas chromatography-mass spectrometry-based metabolic profiling and sensory evaluation. J Biosci Bioeng 2021; 132:613-620. [PMID: 34656425 DOI: 10.1016/j.jbiosc.2021.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 08/30/2021] [Accepted: 09/07/2021] [Indexed: 01/13/2023]
Abstract
Indonesia is one of the world's leading mango producers and grows many cultivars. However, only a few cultivars have been commercialized, perhaps because of limited information on consumer preferences that meet the market demands. Here, non-targeted gas chromatography-mass spectrometry (GC-MS)-based metabolome analysis was used to characterize five Indonesian mango cultivars considering their taste characteristics. A total of 95 components (47 annotated and 48 unknown metabolites) were identified. Cultivars with a higher general impression score (Arumanis 143 and Gedong) in principal component analysis (PCA) accumulated more sugars and sweetening components, such as glycine and lyxose. Meanwhile, cultivars with a lower general impression score in PCA (Lalijiwo and Cengkir Indramayu) accumulated more aspartic acid, isocitric acid, and citric acid, which increase sourness; methionine, which is a precursor of sulfur-containing volatile aroma components; and phenylalanine, which contributes to bitterness. Furthermore, orthogonal projection to latent structures discriminant analysis revealed that nicotinic acid, glutamic acid, aspartic acid, glycine, and ribose characterized higher or lower general impression cultivars. In addition, metabolic profiling of eight mango cultivars, including five Indonesian and three overseas cultivars, suggested that taste was more influential than differences in cultivars, production areas, and cultivation conditions by its hydrophilic primary metabolomics. These findings will serve as fundamental data for future mango industry development considering the association between the unique taste of each cultivar and its metabolites as well as the consumer preferences for Indonesian mango.
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Affiliation(s)
- Miwa Sato
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan; Miyazaki Agricultural Research Institute, 5805 Shimonaka, Sadowara-cho, Miyazaki 880-0212, Japan
| | - Muhammad Maulana Malikul Ikram
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hardaning Pranamuda
- Center of Technology for Agroindustry, Gedung 610-612, LAPTIAB-BPPT, PUSPIPTEK, Serpong, Banten 15314, Indonesia
| | - Waqif Agusta
- Center of Technology for Agroindustry, Gedung 610-612, LAPTIAB-BPPT, PUSPIPTEK, Serpong, Banten 15314, Indonesia
| | - Sastia Prama Putri
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan; Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan.
| | - Eiichiro Fukusaki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan; Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan; Osaka University-Shimadzu Omics Innovation Research Laboratories, Osaka University, Suita, Osaka, Japan
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16
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Zhao Q, Wang Z, Yang L, Zhang S, Jia K. YALI0C22088g from Yarrowia lipolytica catalyses the conversion of l-methionine into volatile organic sulfur-containing compounds. Microb Biotechnol 2021; 14:1462-1471. [PMID: 33793081 PMCID: PMC8313282 DOI: 10.1111/1751-7915.13796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/30/2021] [Accepted: 02/24/2021] [Indexed: 11/30/2022] Open
Abstract
The enzymatic conversion of l-methionine (l-Met) into volatile organic sulfur-containing compounds (VOSCs) plays an important role in developing the characteristic aroma of foods. However, the mechanism for the direct conversion of l-Met into VOSCs is still unclear in yeast cells used to make food products. Here, we show that the transcription profile of YALI0C22088g from Yarrowia lipolytica correlates positively with l-Met addition. YALI0C22088g catalyses the γ-elimination of l-Met, directly converting l-Met into VOSCs. YALI0C22088g also exhibits strong C-S lysis activities towards l-cystathionine and the other sulfur-containing compounds and forms a distinct cystathionine-γ-lyase subgroup. We identified eight key amino acid residues in YALI0C22088g, and we inferred that the size of the tunnel and the charges carried by the entrance amino acid residue are the determinants for the enzymatic conversion of l-Met into VOSCs. These findings reveal the formation mechanism of VOSCs produced directly from l-Met via the demethiolation pathway in Yarrowia lipolytica, which provides a rationale for engineering the enzymatic conversion of l-Met into VOSCs and thus stimulates the enzymatic production of aroma compounds.
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Affiliation(s)
- Quan‐Lu Zhao
- Key Laboratory of Fermentation Engineering (Ministry of Education)Hubei Key Laboratory of Industrial MicrobiologyHubei Provincial Cooperative Innovation Center of Industrial FermentationHubei University of TechnologyWuhan430068China
| | - Zhu‐Lin Wang
- Key Laboratory of Fermentation Engineering (Ministry of Education)Hubei Key Laboratory of Industrial MicrobiologyHubei Provincial Cooperative Innovation Center of Industrial FermentationHubei University of TechnologyWuhan430068China
| | - Lan Yang
- Key Laboratory of Fermentation Engineering (Ministry of Education)Hubei Key Laboratory of Industrial MicrobiologyHubei Provincial Cooperative Innovation Center of Industrial FermentationHubei University of TechnologyWuhan430068China
| | - Sai Zhang
- Key Laboratory of Fermentation Engineering (Ministry of Education)Hubei Key Laboratory of Industrial MicrobiologyHubei Provincial Cooperative Innovation Center of Industrial FermentationHubei University of TechnologyWuhan430068China
| | - Kai‐Zhi Jia
- Key Laboratory of Fermentation Engineering (Ministry of Education)Hubei Key Laboratory of Industrial MicrobiologyHubei Provincial Cooperative Innovation Center of Industrial FermentationHubei University of TechnologyWuhan430068China
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17
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Identification of key aromas of Chinese muskmelon and study of their formation mechanisms. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-020-03658-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Mayobre C, Pereira L, Eltahiri A, Bar E, Lewinsohn E, Garcia-Mas J, Pujol M. Genetic dissection of aroma biosynthesis in melon and its relationship with climacteric ripening. Food Chem 2021; 353:129484. [PMID: 33812162 DOI: 10.1016/j.foodchem.2021.129484] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/20/2021] [Accepted: 02/24/2021] [Indexed: 10/22/2022]
Abstract
Aroma is an essential trait in melon fruit quality, but its complexity and genetic basis are still poorly understood. The aim of this study was the identification of quantitative trait loci (QTLs) underlying volatile organic compounds (VOCs) biosynthesis in melon rind and flesh, using a Recombinant Inbred Line (RIL) population from the cross 'Piel de Sapo' (PS) × 'Védrantais' (VED), two commercial varieties segregating for ripening behavior. A total of 82 VOCs were detected by gas chromatography-mass spectrometry (GC-MS), and 166 QTLs were identified. The main QTL cluster was on chromosome 8, collocating with the previously described ripening-related QTL ETHQV8.1, with an important role in VOCs biosynthesis. QTL clusters involved in esters, lipid-derived volatiles and apocarotenoids were also identified, and candidate genes have been proposed for ethyl 3-(methylthio)propanoate and benzaldehyde biosynthesis. Our results provide genetic insights for deciphering fruit aroma in melon and offer new tools for flavor breeding.
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Affiliation(s)
- Carlos Mayobre
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Lara Pereira
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Abdelali Eltahiri
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Einat Bar
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Center, Ramat Yishay, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Volcani Center, Ramat Yishay, Israel
| | - Jordi Garcia-Mas
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain; Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain.
| | - Marta Pujol
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain; Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Edifici CRAG, Campus UAB, 08193 Bellaterra, Barcelona, Spain.
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Panpetch P, Sirikantaramas S. Fruit ripening-associated leucylaminopeptidase with cysteinylglycine dipeptidase activity from durian suggests its involvement in glutathione recycling. BMC PLANT BIOLOGY 2021; 21:69. [PMID: 33526024 PMCID: PMC7852106 DOI: 10.1186/s12870-021-02845-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Durian (Durio zibethinus L.) is a highly popular fruit in Thailand and several other Southeast Asian countries. It is abundant in essential nutrients and sulphur-containing compounds such as glutathione (GSH) and γ-glutamylcysteine (γ-EC). Cysteinylglycine (Cys-Gly) is produced by GSH catabolism and occurs in durian fruit pulp. Cysteine (Cys) is a precursor of sulphur-containing volatiles generated during fruit ripening. The aforementioned substances contribute to the strong odour and flavour of the ripe fruit. However, the genes encoding plant Cys-Gly dipeptidases are unknown. The aim of this study was to measure leucylaminopeptidase (LAP) activity in durian fruit pulp. RESULTS We identified DzLAP1 and DzLAP2, which the former was highly expressed in the fruit pulp. DzLAP1 was expressed at various ripening stages and in response to ethephon/1-MCP treatment. Hence, DzLAP1 is active at the early stages of fruit ripening. DzLAP1 is a metalloenzyme ~ 63 kDa in size. It is activated by Mg2+ or Mn2+ and, like other LAPs, its optimal alkaline pH is 9.5. Kinetic studies revealed that DzLAP1 has Km = 1.62 mM for its preferred substrate Cys-Gly. DzLAP1-GFP was localised to the cytosol and targeted the plastids. In planta Cys-Gly hydrolysis was confirmed for Nicotiana benthamiana leaves co-infiltrated with Cys-Gly and expressing DzLAP1. CONCLUSIONS DzLAP1 has Cys-Gly dipeptidase activity in the γ-glutamyl cycle. The present study revealed that the LAPs account for the high sulphur-containing compound levels identified in fully ripened durian fruit pulp.
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Affiliation(s)
- Pawinee Panpetch
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok, 10330, Thailand
| | - Supaart Sirikantaramas
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok, 10330, Thailand.
- Omics Sciences and Bioinformatics Centre, Chulalongkorn University, 254 Phayathai Road, Bangkok, 10330, Thailand.
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20
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Sangpong L, Khaksar G, Pinsorn P, Oikawa A, Sasaki R, Erban A, Watanabe M, Wangpaiboon K, Tohge T, Kopka J, Hoefgen R, Saito K, Sirikantaramas S. Assessing Dynamic Changes of Taste-Related Primary Metabolism During Ripening of Durian Pulp Using Metabolomic and Transcriptomic Analyses. FRONTIERS IN PLANT SCIENCE 2021; 12:687799. [PMID: 34220909 PMCID: PMC8250156 DOI: 10.3389/fpls.2021.687799] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/24/2021] [Indexed: 05/07/2023]
Abstract
Durian is an economically important fruit of Southeast Asia. There is, however, a lack of in-depth information on the alteration of its metabolic networks during ripening. Here, we annotated 94 ripening-associated metabolites from the pulp of durian cv. Monthong fruit at unripe and ripe stages, using capillary electrophoresis- and gas chromatography- time-of-flight mass spectrometry, specifically focusing on taste-related metabolites. During ripening, sucrose content increased. Change in raffinose-family oligosaccharides are reported herein for the first time. The malate and succinate contents increased, while those of citrate, an abundant organic acid, were unchanged. Notably, most amino acids increased, including isoleucine, leucine, and valine, whereas aspartate decreased, and glutamate was unchanged. Furthermore, transcriptomic analysis was performed to analyze the dynamic changes in sugar metabolism, glycolysis, TCA cycle, and amino acid pathways to identify key candidate genes. Taken together, our results elucidate the fundamental taste-related metabolism of durian, which can be exploited to develop durian metabolic and genetic markers in the future.
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Affiliation(s)
- Lalida Sangpong
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Gholamreza Khaksar
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Pinnapat Pinsorn
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Akira Oikawa
- Faculty of Agriculture, Yamagata University, Yamagata, Japan
- Metabolomics Research Group, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Ryosuke Sasaki
- Metabolomics Research Group, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Alexander Erban
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Mutsumi Watanabe
- Plant Secondary Metabolism, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Nara, Japan
| | - Karan Wangpaiboon
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Takayuki Tohge
- Plant Secondary Metabolism, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Nara, Japan
| | - Joachim Kopka
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Rainer Hoefgen
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Kazuki Saito
- Metabolomics Research Group, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Supaart Sirikantaramas
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Molecular Sensory Science Center, Chulalongkorn University, Bangkok, Thailand
- *Correspondence: Supaart Sirikantaramas,
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21
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Sensory, physicochemical and volatile compound analysis of short and long shelf-life melon ( Cucumis melo L.) genotypes at harvest and after postharvest storage. FOOD CHEMISTRY-X 2020; 8:100107. [PMID: 33103112 PMCID: PMC7576513 DOI: 10.1016/j.fochx.2020.100107] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 11/25/2022]
Abstract
Maturity at harvest and after storage plus genotype impact melon fruit flavor. Volatiles increased in storage for all melon genotypes with esters being dominant. Short shelf-life melons associated with esters, sulphur compounds and a terpenoid. Long shelf-life melons related with green/grassy aroma/flavor, firmness, aldehydes.
Flavor is a key attribute defining melon fruit quality and driving consumer preferences. We characterized and compared fruit ripening patterns (ethylene, respiration), physicochemical properties (rind/flesh color, firmness, soluble solids, acidity), aroma volatiles, and flavor-related sensory attributes in seven melon genotypes differing in shelf life capacity. Fruits were evaluated at optimal maturity and after storage for six days at 5 °C plus one day at room temperature. Total volatile content increased after storage in all genotypes, with esters being dominant. Shorter shelf-life genotypes, displaying a sharper climacteric phase, correlated with fruity/floral/sweet flavor-related descriptors, and with esters, sulfur-containing compounds and a terpenoid. Longer shelf-life types were associated with firmness, green and grassy aroma/flavor and aldehydes. Multivariate regression identified key volatiles that predict flavor sensory perception, which could accelerate breeding of longer shelf-life melons with improved flavor characteristics.
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22
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Ben-Gera H, Bensimon Mashraki K, Sharma R, Shachter A, Chaimovitsh D, Gonda I, Nitzan N, Dudai N. Chemo-Geographic Variations in Wild Population of Asteriscus graveolens in Israel Based on Volatile Composition Analyses. Chem Biodivers 2020; 17:e2000311. [PMID: 33094554 DOI: 10.1002/cbdv.202000311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 09/07/2020] [Indexed: 11/09/2022]
Abstract
Asteriscus graveolens is an aromatic desert shrub which holds medicinal potential. This species belongs to the Asteraceae family and is endemic to the Mediterranean region. In the present study, wild plants were sampled from eleven locations throughout southern Israel and the volatile profiles from leaves and flowers were analyzed using GC/MS. Three methods for volatile sampling were tested for a representative population: solvent extraction (methyl tert-butyl ether), hydrodistillation of the essential oil and headspace solid-phase microextraction. In all methods, the majority of volatiles were characterized as oxygenated mono- and sesquiterpenes. Only solvent extraction was able to detect asteriscunolides that were previously reported as anticancer molecules. Hence, that method was chosen for further analyses. The leaves were dominated by three asteriscunolide isomers, cis-chrysanthenyl acetate and intermedeol. The flowers were dominated by bisabolone, 6-hydroxybisabol-2-en-1-one, cis-chrysanthenyl acetate, epi-α-cadinol, and germacrene-D. k-Means clustering analysis of these data divided the population into four clusters that significantly differ in their volatile composition as was further demonstrated by MANOVA analysis. Geographically, A. graveolens populations growing in Israel were found to be chemically diverse with unique varieties in the Dead Sea basin and the Arava region. This work demonstrates that chemo-geographic variation of volatile composition exists within A. graveolens population growing in Israel, so future research evaluating the medicinal potential of that plant should take this into consideration.
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Affiliation(s)
- Hadas Ben-Gera
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, ARO, Ramat-Yishay, IL, 30095, Israel
| | - Keren Bensimon Mashraki
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, ARO, Ramat-Yishay, IL, 30095, Israel
| | - Reena Sharma
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, ARO, Ramat-Yishay, IL, 30095, Israel
| | - Alona Shachter
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, ARO, Ramat-Yishay, IL, 30095, Israel
| | - David Chaimovitsh
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, ARO, Ramat-Yishay, IL, 30095, Israel
| | - Itay Gonda
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, ARO, Ramat-Yishay, IL, 30095, Israel
| | - Nadav Nitzan
- Valley of Springs, Agriculture Research and Extension Center, Mobile Post Bet, She'an Valley IL, 11710, Israel
| | - Nativ Dudai
- Unit of Aromatic and Medicinal Plants, Newe Ya'ar Research Center, ARO, Ramat-Yishay, IL, 30095, Israel
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Abstract
A melon core collection was analyzed for rind volatile compounds as, despite the fact that they are scarcely studied, these compounds play an important role in consumer preferences. Gas chromatography coupled to mass spectrometry allowed the detection of 171 volatiles. The high volatile diversity found was analyzed by Hierarchical Cluster Analysis (HCA), giving rise to two major clusters of accessions. The first cluster included climacteric and aromatic types such as Cantalupensis, Ameri, Dudaim and Momordica, rich in esters; the second one mainly included non-climacteric non-aromatic types such as Inodorus, Flexuosus, Acidulus, Conomon and wild Agrestis, with low volatiles content, specifically affecting esters. Many interesting accessions were identified, with different combinations of aroma profiles for rind and flesh, such as Spanish Inodorus landraces with low aroma flesh but rind levels of esters similar to those in climacteric Cantalupensis, exotic accessions sharing high contents of specific compounds responsible for the unique aroma of Dudaim melons or wild Agrestis with unexpected high content of some esters. Sesquiterpenes were present in rinds of some Asian Ameri and Momordica landraces, and discriminate groups of cultivars (sesquiterpene-rich/-poor) within each of the two most commercial melon horticultural groups (Cantalupensis and Inodorus), suggesting that the Asian germplasm is in the origin of specific current varieties or that this feature has been introgressed more recently from Asian sources. This rind characterization will encourage future efforts for breeding melon quality as many of the characterized landraces and wild accessions have been underexploited.
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Zhu C, Lu Q, Zhou X, Li J, Yue J, Wang Z, Pan S. Metabolic variations of organic acids, amino acids, fatty acids and aroma compounds in the pulp of different pummelo varieties. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109445] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Comparative Proteomic Analysis on Fruit Ripening Processes in Two Varieties of Tropical Mango (Mangifera indica). Protein J 2019; 38:704-715. [DOI: 10.1007/s10930-019-09868-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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26
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Xiao Z, Xiang P, Zhu J, Zhu Q, Liu Y, Niu Y. Evaluation of the Perceptual Interaction among Sulfur Compounds in Mango by Feller's Additive Model, Odor Activity Value, and Vector Model. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:8926-8937. [PMID: 31352781 DOI: 10.1021/acs.jafc.9b03156] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The volatile compounds found in mangoes (Mangifera indica L.) obtained from three cultivars (TN, Tainong no. 1; KT, Keitt; and ZL, Zill; grown in China) were comprehensively analyzed by gas chromatography-olfactometry (GC-O), gas chromatography-mass spectrometry (GC-MS), and GC-flame photometric detection (GC-FPD) analyses. The results showed that 42, 35, and 45 compounds were identified in the TN, KT, and ZL samples, respectively. From these compounds, 19, 14, and 20 compounds were identified as important odorants with odor activity values (OAVs) greater than 1. Of these, 5, 7, and 5 sulfur compounds were respectively identified in the three samples by FPD. Importantly, methanethiol, ethanethiol, 1-propanethiol, methyl propyl disulfide, and 3-mercapto-1-hexanol were detected for the first time in mango. Five sulfur compounds were selected to study interactions using Feller's additive model, OAV, and Vector model. Among these mixtures, six mixtures exhibited a masking effect, three mixtures presented an additive effect, and one mixture showed a synergistic effect.
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Affiliation(s)
- Zuobing Xiao
- Department of Perfume and Aroma Technology , Shanghai Institute of Technology , Shanghai 201418 , China
| | - Pan Xiang
- Department of Perfume and Aroma Technology , Shanghai Institute of Technology , Shanghai 201418 , China
| | - Jiancai Zhu
- Department of Perfume and Aroma Technology , Shanghai Institute of Technology , Shanghai 201418 , China
| | - Quan Zhu
- Department of Perfume and Aroma Technology , Shanghai Institute of Technology , Shanghai 201418 , China
| | - Ying Liu
- Department of Perfume and Aroma Technology , Shanghai Institute of Technology , Shanghai 201418 , China
| | - Yunwei Niu
- Department of Perfume and Aroma Technology , Shanghai Institute of Technology , Shanghai 201418 , China
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27
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Pott DM, Osorio S, Vallarino JG. From Central to Specialized Metabolism: An Overview of Some Secondary Compounds Derived From the Primary Metabolism for Their Role in Conferring Nutritional and Organoleptic Characteristics to Fruit. FRONTIERS IN PLANT SCIENCE 2019; 10:835. [PMID: 31316537 PMCID: PMC6609884 DOI: 10.3389/fpls.2019.00835] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/11/2019] [Indexed: 05/23/2023]
Abstract
Fruit flavor and nutritional characteristics are key quality traits and ones of the main factors influencing consumer preference. Central carbon metabolism, also known as primary metabolism, contributes to the synthesis of intermediate compounds that act as precursors for plant secondary metabolism. Specific and specialized metabolic pathways that evolved from primary metabolism play a key role in the plant's interaction with its environment. In particular, secondary metabolites present in the fruit serve to increase its attractiveness to seed dispersers and to protect it against biotic and abiotic stresses. As a consequence, several important organoleptic characteristics, such as aroma, color, and fruit nutritional value, rely upon secondary metabolite content. Phenolic and terpenoid compounds are large and diverse classes of secondary metabolites that contribute to fruit quality and have their origin in primary metabolic pathways, while the delicate aroma of ripe fruits is formed by a unique combination of hundreds of volatiles that are derived from primary metabolites. In this review, we show that the manipulation of primary metabolism is a powerful tool to engineer quality traits in fruits, such as the phenolic, terpenoid, and volatile content. The enzymatic reactions responsible for the accumulation of primary precursors are bottlenecks in the transfer of metabolic flux from central to specialized metabolism and should be taken into account to increase the yield of the final products of the biosynthetic pathways. In addition, understanding the connection and regulation of the carbon flow between primary and secondary metabolism is a key factor for the development of fruit cultivars with enhanced organoleptic and nutritional traits.
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Affiliation(s)
| | - Sonia Osorio
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga – Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Málaga, Spain
| | - José G. Vallarino
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga – Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Málaga, Spain
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28
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Wang M, Zhang L, Boo KH, Park E, Drakakaki G, Zakharov F. PDC1, a pyruvate/α-ketoacid decarboxylase, is involved in acetaldehyde, propanal and pentanal biosynthesis in melon (Cucumis melo L.) fruit. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 98:112-125. [PMID: 30556202 DOI: 10.1111/tpj.14204] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 11/19/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
Plant pyruvate decarboxylases (PDC) catalyze the decarboxylation of pyruvate to form acetaldehyde and CO2 and are well known to play a key role in energy supply via fermentative metabolism in oxygen-limiting conditions. In addition to their role in fermentation, plant PDCs have also been hypothesized to be involved in aroma formation although, to date, there is no direct biochemical evidence for this function. We investigated the role of PDCs in fruit volatile biosynthesis, and identified a melon pyruvate decarboxylase, PDC1, that is highly expressed in ripe fruits. In vitro biochemical characterization of the recombinant PDC1 enzyme showed that it could not only decarboxylate pyruvate, but that it also had significant activity toward other straight- and branched-chain α-ketoacids, greatly expanding the range of substrates previously known to be accepted by the plant enzyme. RNAi-mediated transient and stable silencing of PDC1 expression in melon showed that this gene is involved in acetaldehyde, propanal and pentanal production, while it does not contribute to branched-chain amino acid (BCAA)-derived aldehyde biosynthesis in melon fruit. Importantly, our results not only demonstrate additional functions for the PDC enzyme, but also challenge the long standing hypothesis that PDC is involved in BCAA-derived aldehyde formation in fruit.
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Affiliation(s)
- Minmin Wang
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Lei Zhang
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Kyung Hwan Boo
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Eunsook Park
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Georgia Drakakaki
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Florence Zakharov
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
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29
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Regulatory Networks Governing Methionine Catabolism into Volatile Organic Sulfur-Containing Compounds in Clonostachys rosea. Appl Environ Microbiol 2018; 84:AEM.01840-18. [PMID: 30217835 DOI: 10.1128/aem.01840-18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 09/04/2018] [Indexed: 11/20/2022] Open
Abstract
Adaptation to environmental perturbations requires living systems to coordinately regulate signaling pathways, gene expression, and metabolism. To better understand the mechanisms underlying adaptation, the regulatory nodes within networks must be elucidated. Here, ARO8-2 (which encodes an aminotransferase), PDC (which encodes a decarboxylase), and STR3 (which encodes a demethiolase) were identified as key genes involved in the catabolism of methionine in the mycoparasitic fungus Clonostachys rosea, isolated from Tuber melanosporum ascocarps. Exogenous Met induced the transcription of ARO8-2 and PDC but repressed the transcription of STR3, which is controlled by the putative MSN2 and GLN3 binding sites responding to nitrogen catabolite repression. Met and its structural derivatives function as glutamine synthetase inhibitors, resulting in the downregulation of STR3 expression. The putative GLN3 binding site was necessary for STR3 downregulation. In Saccharomyces cerevisiae, Met and its structural derivatives also triggered downregulation of demethiolase gene expression. Altogether, the results indicated that exogenous Met triggered nitrogen catabolite repression, which stimulated the Ehrlich pathway and negatively regulated the demethiolation pathway via the methionine sulfoximine-responsive regulatory pathway. This finding revealed the regulatory nodes within the networks controlling the catabolism of Met into volatile organic sulfur-containing compounds, thereby enhancing our understanding of adaptation.IMPORTANCE Methionine shuttles organic nitrogen and plays a central role in nitrogen metabolism. Exogenous Met strongly induces the expression of ARO8-2 and PDC, represses the expression of STR3, and generates volatile organic sulfur-containing compounds via the Ehrlich and demethiolation pathways. In this study, we used genetic, bioinformatic, and metabolite-based analyses to confirm that transcriptional control of the aminotransferase gene ARO8-2, the decarboxylase gene PDC, and the demethiolase gene STR3 modulates Met catabolism into volatile organic sulfur-containing compounds. Importantly, we found that, in addition to the Ehrlich pathway, the demethiolation pathway was regulated by a nitrogen catabolite repression-sensitive regulatory pathway that controlled the transcription of genes required to catabolize poor nitrogen sources. This work significantly advances our understanding of nitrogen catabolite repression-sensitive transcriptional regulation of sulfur-containing amino acid catabolism and provides a basis for engineering Met catabolism pathways for the production of fuel and valuable flavor alcohols.
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Maoz I, Rikanati RD, Schlesinger D, Bar E, Gonda I, Levin E, Kaplunov T, Sela N, Lichter A, Lewinsohn E. Concealed ester formation and amino acid metabolism to volatile compounds in table grape (Vitis vinifera L.) berries. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 274:223-230. [PMID: 30080607 DOI: 10.1016/j.plantsci.2018.05.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/25/2018] [Accepted: 05/21/2018] [Indexed: 06/08/2023]
Abstract
Volatile esters contribute to the aroma and flavor of many fruits but are normally absent in grape berries (Vitis vinifera L.). To examine the biosynthetic potential of grape berries to form volatile esters, berry sections were incubated with exogenous L-Phe, L-Leu or L-Met. In general, amino-acid incubation caused the accumulation of the respective aldehydes and alcohols. Moreover, L-Leu incubation resulted in the accumulation of 3-methylbutyl acetate and L-Phe incubation resulted in the accumulation 2-phenylethyl acetate in 'Muscat Hamburg' but not in the other grape accessions. Exogenous L-Met administration did not result in volatile esters accumulation but the accumulation of sulfur volatile compounds such as methional and dimethyl disulfide was prominent. Berry-derived cell-free extracts displayed differential alcohol acetyltransferase activities and supported the formation of 3-methylbutyl acetate and benzyl acetate. 2-Phenylethyl acetate was produced only in 'Muscat Hamburg' cell-free extracts. VvAAT2, a newly characterized gene, was preferentially expressed in 'Muscat Hamburg' berries and functionally expressed in E. coli. VvAAT2 possesses alcohol acetyltransferase activity utilizing benzyl alcohol, 2-phenylethanol, hexanol or 3-methylbutanol as substrates. Our study demonstrates that grape berries have a concealed potential to accumulate volatile esters and this process is limited by substrate availability.
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Affiliation(s)
- Itay Maoz
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Center, Rishon LeZion 50250, Israel; Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel; Department of Vegetable Crops, Newe Ya'ar Research Center, Ramat Yishay 30095, Israel
| | | | - Daniel Schlesinger
- Department of Vegetable Crops, Newe Ya'ar Research Center, Ramat Yishay 30095, Israel; Department of Evolutionary and Environmental Biology, University of Haifa, Haifa 3498838, Israel
| | - Einat Bar
- Department of Vegetable Crops, Newe Ya'ar Research Center, Ramat Yishay 30095, Israel
| | - Itay Gonda
- Department of Vegetable Crops, Newe Ya'ar Research Center, Ramat Yishay 30095, Israel
| | - Elena Levin
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Center, Rishon LeZion 50250, Israel
| | - Tatiana Kaplunov
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Center, Rishon LeZion 50250, Israel
| | - Noa Sela
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, The Volcani Center, Rishon LeZion, 50250, Israel
| | - Amnon Lichter
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Center, Rishon LeZion 50250, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Newe Ya'ar Research Center, Ramat Yishay 30095, Israel.
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31
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Esteras C, Rambla JL, Sánchez G, López-Gresa MP, González-Mas MC, Fernández-Trujillo JP, Bellés JM, Granell A, Picó MB. Fruit flesh volatile and carotenoid profile analysis within the Cucumis melo L. species reveals unexploited variability for future genetic breeding. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:3915-3925. [PMID: 29369359 DOI: 10.1002/jsfa.8909] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/17/2018] [Accepted: 01/18/2018] [Indexed: 05/23/2023]
Abstract
BACKGROUND Aroma profile and carotenoids content of melon flesh are two important aspects influencing the quality of this fruit that have been characterized using only selected genotypes. However, the extant variability of the whole species remains unknown. RESULTS A complete view of the volatile/carotenoid profiles of melon flesh was obtained analyzing 71 accessions, representing the whole diversity of the species. Gas chromatography-mass spectrometry and high-performance liquid chromatography were used to analyze 200 volatile compounds and five carotenoids. Genotypes were classified into two main clusters (high/low aroma), but with a large diversity of differential profiles within each cluster, consistent with the ripening behavior, flesh color and proposed evolutionary and breeding history of the different horticultural groups. CONCLUSION Our results highlight the huge amount of untapped aroma diversity of melon germplasm, especially of non-commercial types. Also, landraces with high nutritional value with regard to carotenoids have been identified. All this knowledge will encourage melon breeding, facilitating the selection of the genetic resources more appropriate to develop cultivars with new aromatic profiles or to minimize the impact of breeding on melon quality. The newly characterized sources provide the basis for further investigations into specific genes/alleles contributing to melon flesh quality. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Cristina Esteras
- Institute for the Conservation and Breeding of Agricultural Biodiversity (COMAV) Universitat Politècnica de València, Valencia, Spain
| | - Jose Luis Rambla
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, Valencia, Spain
| | - Gerardo Sánchez
- Estación Experimental Agropecuaria San Pedro, Instituto Nacional de Tecnología Agropecuaria (INTA), San Pedro, Argentina
| | - M Pilar López-Gresa
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, Valencia, Spain
| | - M Carmen González-Mas
- Fundación AgroAlimed, Centro de Citricultura y Producción Vegetal, Instituto Valenciano de Investigaciones Agrarias (IVIA), Moncada, Valencia, Spain
| | | | - Jose María Bellés
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, Valencia, Spain
| | - Antonio Granell
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, Valencia, Spain
| | - M Belén Picó
- Institute for the Conservation and Breeding of Agricultural Biodiversity (COMAV) Universitat Politècnica de València, Valencia, Spain
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32
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Lu Y, Nawrath M, Sun J, Liu SQ. Effects of physicochemical parameters on volatile sulphur compound formation from L-methionine catabolism by non-growing cells of Kluyveromyces lactis. AMB Express 2018; 8:109. [PMID: 29971574 PMCID: PMC6029988 DOI: 10.1186/s13568-018-0639-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 06/29/2018] [Indexed: 11/10/2022] Open
Abstract
The present study investigated for the first time the effects of various physicochemical parameters on the production of volatile sulphur compounds (VSCs) by non-growing cells of Kluyveromyces lactis supplemented with l-methionine. The results showed that the production of VSCs positively correlated with the cell biomass, but it seemed that no clear relationship with l-methionine concentration existed. Temperature and pH significantly affected the formation of VSCs with more production at 30 °C and pH 5, respectively. Nitrogen supplementation (in the form of diammonium phosphate, DAP) repressed the production of VSCs. It is interesting to note that DAP and yeast extract supplementation induced the production of methional, but not Mn2+ supplementation. The presence of Mn2+ improved the production of methionol and dimethyl disulphide, but inhibited the formation of S-methyl thioacetate. The study indicated that optimization of physicochemical conditions and media composition would be crucial for producing l-methionine-derived VSC bioflavor.
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Pinsorn P, Oikawa A, Watanabe M, Sasaki R, Ngamchuachit P, Hoefgen R, Saito K, Sirikantaramas S. Metabolic variation in the pulps of two durian cultivars: Unraveling the metabolites that contribute to the flavor. Food Chem 2018; 268:118-125. [PMID: 30064738 DOI: 10.1016/j.foodchem.2018.06.066] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 06/06/2018] [Accepted: 06/13/2018] [Indexed: 11/25/2022]
Abstract
Durian (Durio zibethinus M.) is a major economic fruit crop in Thailand. In this study, two popular cultivars, namely Chanee and Mon Thong, were collected from three orchards located in eastern Thailand. The pulp metabolome, including 157 annotated metabolites, was explored using capillary electrophoresis-time of flight/mass spectrometry (CE-TOF/MS). Cultivars and harvest years had more impact on metabolite profile separation than cultivation areas. We identified cultivar-dependent metabolite markers related to durian fruit quality traits, such as nutritional value (pyridoxamine), odor (cysteine, leucine), and ripening process (aminocyclopropane carboxylic acid). Interestingly, durian fruit were found to contain high amounts of γ-glutamylcysteine (810.3 ± 257.5 mg/100 g dry weight) and glutathione (158.1 ± 80.4 mg/100 g dry weight), which act as antioxidants and taste enhancers. This metabolite information could be related to consumer preferences and exploited for durian fruit quality improvement.
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Affiliation(s)
- Pinnapat Pinsorn
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand
| | - Akira Oikawa
- Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan; RIKEN Center for Sustainable Resource Science, Tsurumi-ku, Yokohama 230-0045, Japan.
| | - Mutsumi Watanabe
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm 14476, Germany.
| | - Ryosuke Sasaki
- RIKEN Center for Sustainable Resource Science, Tsurumi-ku, Yokohama 230-0045, Japan.
| | - Panita Ngamchuachit
- Department of Food Technology, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand; Center of Molecular Sensory Science, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand.
| | - Rainer Hoefgen
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm 14476, Germany.
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science, Tsurumi-ku, Yokohama 230-0045, Japan.
| | - Supaart Sirikantaramas
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand; Omics Sciences and Bioinformatics Center, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand.
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Luo D, Pang X, Xu X, Bi S, Zhang W, Wu J. Identification of Cooked Off-Flavor Components and Analysis of Their Formation Mechanisms in Melon Juice during Thermal Processing. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:5612-5620. [PMID: 29746115 DOI: 10.1021/acs.jafc.8b01019] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cooked off-flavor components were identified, and their formation mechanisms were studied in heat-treated melon juices. When flavor dilution analysis methods and odor activity values were used to evaluate the cooked off-flavor in heat-treated melon juice, four volatile sulfide compounds (VSCs) were identified as contributors to the cooked off-flavor: dimethyl disulfide (DMDS), dimethyl trisulfide (DMTS), dimethyl sulfide (DMS), and 3-(methylthio)propanal (MTP). The cooked off-flavor intensities of heated juices from thick-skinned melons were stronger than those in juices from thin-skinned melons. We conducted a comparative analysis of VSCs before and after heat treatment by adding unlabeled and labeled S-methylmethionine (SMM) and/or methionine (Met) to the original melon juices. DMS and MTP were formed from SMM and Met through nucleophilic substitution and Strecker degradation, respectively. DMDS and DMTS were partly formed through the oxidative degradation of methanethiol produced from Met. Moreover, SMM could accelerate degradation of Met by increasing the amount of dicarbonyl compounds during heat treatment.
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Affiliation(s)
- Dongsheng Luo
- College of Food Science and Nutritional Engineering , China Agricultural University; Key Laboratory of Fruit and Vegetable Processing, Ministry of Agriculture; and National Engineering Research Center for Fruit and Vegetable Processing , Beijing 100083 , China
| | - Xueli Pang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , China
| | - Xinxing Xu
- College of Food Science and Nutritional Engineering , China Agricultural University; Key Laboratory of Fruit and Vegetable Processing, Ministry of Agriculture; and National Engineering Research Center for Fruit and Vegetable Processing , Beijing 100083 , China
| | - Shuang Bi
- College of Food Science and Nutritional Engineering , China Agricultural University; Key Laboratory of Fruit and Vegetable Processing, Ministry of Agriculture; and National Engineering Research Center for Fruit and Vegetable Processing , Beijing 100083 , China
| | - Wentao Zhang
- College of Food Science and Nutritional Engineering , China Agricultural University; Key Laboratory of Fruit and Vegetable Processing, Ministry of Agriculture; and National Engineering Research Center for Fruit and Vegetable Processing , Beijing 100083 , China
| | - Jihong Wu
- College of Food Science and Nutritional Engineering , China Agricultural University; Key Laboratory of Fruit and Vegetable Processing, Ministry of Agriculture; and National Engineering Research Center for Fruit and Vegetable Processing , Beijing 100083 , China
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Methodology to Remove Strong Outliers of Non-Climacteric Melon Fruit Aroma at Harvest Obtained by HS-SPME GC-MS Analysis. SEPARATIONS 2018. [DOI: 10.3390/separations5020030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Gonda I, Davidovich-Rikanati R, Bar E, Lev S, Jhirad P, Meshulam Y, Wissotsky G, Portnoy V, Burger J, Schaffer AA, Tadmor Y, Giovannoni JJ, Fei Z, Fait A, Katzir N, Lewinsohn E. Differential metabolism of L-phenylalanine in the formation of aromatic volatiles in melon (Cucumis melo L.) fruit. PHYTOCHEMISTRY 2018; 148:122-131. [PMID: 29448137 DOI: 10.1016/j.phytochem.2017.12.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/21/2017] [Accepted: 12/23/2017] [Indexed: 05/23/2023]
Abstract
Studies on the active pathways and the genes involved in the biosynthesis of L-phenylalanine-derived volatiles in fleshy fruits are sparse. Melon fruit rinds converted stable-isotope labeled L-phe into more than 20 volatiles. Phenylpropanes, phenylpropenes and benzenoids are apparently produced via the well-known phenylpropanoid pathway involving phenylalanine ammonia lyase (PAL) and being (E)-cinnamic acid a key intermediate. Phenethyl derivatives seemed to be derived from L-phe via a separate biosynthetic route not involving (E)-cinnamic acid and PAL. To explore for a biosynthetic route to (E)-cinnamaldehyde in melon rinds, soluble protein cell-free extracts were assayed with (E)-cinnamic acid, CoA, ATP, NADPH and MgSO4, producing (E)-cinnamaldehyde in vitro. In this context, we characterized CmCNL, a gene encoding for (E)-cinnamic acid:coenzyme A ligase, inferred to be involved in the biosynthesis of (E)-cinnamaldehyde. Additionally we describe CmBAMT, a SABATH gene family member encoding a benzoic acid:S-adenosyl-L-methionine carboxyl methyltransferase having a role in the accumulation of methyl benzoate. Our approach leads to a more comprehensive understanding of L-phe metabolism into aromatic volatiles in melon fruit.
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Affiliation(s)
- Itay Gonda
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Rachel Davidovich-Rikanati
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Einat Bar
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Shery Lev
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Pliaa Jhirad
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; ORT Braude College, Department of Biotechnology Engineering, Karmiel, Israel
| | - Yuval Meshulam
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; ORT Braude College, Department of Biotechnology Engineering, Karmiel, Israel
| | - Guy Wissotsky
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Vitaly Portnoy
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Joseph Burger
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Arthur A Schaffer
- Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Rishon LeZion, 76100, Israel
| | - Yaakov Tadmor
- The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - James J Giovannoni
- Boyce Thompson Institute, Cornell University, Ithaca, NY 14853, USA; USDA-ARS Robert W. Holley Center for Agriculture and Health, Ithaca, NY 14853, USA
| | - Zhangjun Fei
- Boyce Thompson Institute, Cornell University, Ithaca, NY 14853, USA; USDA-ARS Robert W. Holley Center for Agriculture and Health, Ithaca, NY 14853, USA
| | - Aaron Fait
- The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Nurit Katzir
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Efraim Lewinsohn
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
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Galpaz N, Gonda I, Shem-Tov D, Barad O, Tzuri G, Lev S, Fei Z, Xu Y, Mao L, Jiao C, Harel-Beja R, Doron-Faigenboim A, Tzfadia O, Bar E, Meir A, Sa'ar U, Fait A, Halperin E, Kenigswald M, Fallik E, Lombardi N, Kol G, Ronen G, Burger Y, Gur A, Tadmor Y, Portnoy V, Schaffer AA, Lewinsohn E, Giovannoni JJ, Katzir N. Deciphering genetic factors that determine melon fruit-quality traits using RNA-Seq-based high-resolution QTL and eQTL mapping. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 94:169-191. [PMID: 29385635 DOI: 10.1111/tpj.13838] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/19/2017] [Accepted: 01/08/2018] [Indexed: 05/18/2023]
Abstract
Combined quantitative trait loci (QTL) and expression-QTL (eQTL) mapping analysis was performed to identify genetic factors affecting melon (Cucumis melo) fruit quality, by linking genotypic, metabolic and transcriptomic data from a melon recombinant inbred line (RIL) population. RNA sequencing (RNA-Seq) of fruit from 96 RILs yielded a highly saturated collection of > 58 000 single-nucleotide polymorphisms, identifying 6636 recombination events that separated the genome into 3663 genomic bins. Bin-based QTL analysis of 79 RILs and 129 fruit-quality traits affecting taste, aroma and color resulted in the mapping of 241 QTL. Thiol acyltransferase (CmThAT1) gene was identified within the QTL interval of its product, S-methyl-thioacetate, a key component of melon fruit aroma. Metabolic activity of CmThAT1-encoded protein was validated in bacteria and in vitro. QTL analysis of flesh color intensity identified a candidate white-flesh gene (CmPPR1), one of two major loci determining fruit flesh color in melon. CmPPR1 encodes a member of the pentatricopeptide protein family, involved in processing of RNA in plastids, where carotenoid and chlorophyll pigments accumulate. Network analysis of > 12 000 eQTL mapped for > 8000 differentially expressed fruit genes supported the role of CmPPR1 in determining the expression level of plastid targeted genes. We highlight the potential of RNA-Seq-based QTL analysis of small to moderate size, advanced RIL populations for precise marker-assisted breeding and gene discovery. We provide the following resources: a RIL population genotyped with a unique set of SNP markers, confined genomic segments that harbor QTL governing 129 traits and a saturated set of melon eQTLs.
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Affiliation(s)
- Navot Galpaz
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Itay Gonda
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
| | - Doron Shem-Tov
- NRGENE, Park HaMada Ness Ziona, Israel
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
| | | | - Galil Tzuri
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Shery Lev
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
- Institute of Life Science, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
- USDA-ARS Robert W. Holley Center for Agriculture and Health, Ithaca, New York, USA
| | - Yimin Xu
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
| | - Linyong Mao
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
| | - Chen Jiao
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
| | - Rotem Harel-Beja
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Adi Doron-Faigenboim
- Department of Vegetable and Field Crops, Volcani Center, Agricultural Research Organization, Rishon LeZion, Israel
| | - Oren Tzfadia
- VIB Department of Plant Systems Biology, Ghent University, Gent, Belgium
| | - Einat Bar
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Ayala Meir
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Uzi Sa'ar
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Aaron Fait
- The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eran Halperin
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
| | - Merav Kenigswald
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
- Institute of Life Science, Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Postharvest Science of Fresh Produce, Volcani Center, Agricultural Research Organization, Rishon LeZion, Israel
| | - Elazar Fallik
- Department of Postharvest Science of Fresh Produce, Volcani Center, Agricultural Research Organization, Rishon LeZion, Israel
| | - Nadia Lombardi
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
- Department of Agricultural Sciences, University of Naples, Portici, Italy
| | - Guy Kol
- NRGENE, Park HaMada Ness Ziona, Israel
| | - Gil Ronen
- NRGENE, Park HaMada Ness Ziona, Israel
| | - Yosef Burger
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Amit Gur
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Ya'akov Tadmor
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Vitaly Portnoy
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - Arthur A Schaffer
- Department of Vegetable and Field Crops, Volcani Center, Agricultural Research Organization, Rishon LeZion, Israel
| | - Efraim Lewinsohn
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
| | - James J Giovannoni
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
- USDA-ARS Robert W. Holley Center for Agriculture and Health, Ithaca, New York, USA
| | - Nurit Katzir
- Department of Vegetable and Field Crops, Newe Ya'ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
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Cannon RJ, Ho CT. Volatile sulfur compounds in tropical fruits. J Food Drug Anal 2018; 26:445-468. [PMID: 29567214 PMCID: PMC9322215 DOI: 10.1016/j.jfda.2018.01.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/16/2018] [Accepted: 01/22/2018] [Indexed: 11/17/2022] Open
Abstract
Global production and demand for tropical fruits continues to grow each year as consumers are enticed by the exotic flavors and potential health benefits that these fruits possess. Volatile sulfur compounds (VSCs) are often responsible for the juicy, fresh aroma of tropical fruits. This poses a challenge for analytical chemists to identify these compounds as most often VSCs are found at low concentrations in most tropical fruits. The aim of this review is to discuss the extraction methods, enrichment techniques, and instrumentation utilized to identify and quantify VSCs in natural products. This will be followed by a discussion of the VSCs reported in tropical and subtropical fruits, with particular attention to the odor and taste attributes of each compound. Finally, the biogenesis and enzymatic formation of specific VSCs in tropical fruits will be highlighted along with the contribution each possesses to the aroma of their respective fruit.
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Affiliation(s)
- Robert J. Cannon
- International Flavors & Fragrances Inc., Research & Development, 1515 State Highway 36, Union Beach, NJ 07735,
USA
- Corresponding author. E-mail address: (R.J. Cannon)
| | - Chi-Tang Ho
- Rutgers University, Food Science Department, 65 Dudley Road, New Brunswick, NJ 08901,
USA
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Wong DCJ, Pichersky E, Peakall R. The Biosynthesis of Unusual Floral Volatiles and Blends Involved in Orchid Pollination by Deception: Current Progress and Future Prospects. FRONTIERS IN PLANT SCIENCE 2017; 8:1955. [PMID: 29181016 PMCID: PMC5693887 DOI: 10.3389/fpls.2017.01955] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 10/30/2017] [Indexed: 05/23/2023]
Abstract
Flowers have evolved diverse strategies to attract animal pollinators, with visual and olfactory floral cues often crucial for pollinator attraction. While most plants provide reward (e.g., nectar, pollen) in return for the service of pollination, 1000s of plant species, particularly in the orchid family, offer no apparent reward. Instead, they exploit their often specific pollinators (one or few) by mimicking signals of female insects, food source, and oviposition sites, among others. A full understanding of how these deceptive pollination strategies evolve and persist remains an open question. Nonetheless, there is growing evidence that unique blends that often contain unusual compounds in floral volatile constituents are often employed to secure pollination by deception. Thus, the ability of plants to rapidly evolve new pathways for synthesizing floral volatiles may hold the key to the widespread evolution of deceptive pollination. Yet, until now the biosynthesis of these volatile compounds has been largely neglected. While elucidating the biosynthesis in non-model systems is challenging, nonetheless, these cases may also offer untapped potential for biosynthetic breakthroughs given that some of the compounds can be exclusive or dominant components of the floral scent and production is often tissue-specific. In this perspective article, we first highlight the chemical diversity underpinning some of the more widespread deceptive orchid pollination strategies. Next, we explore the potential metabolic pathways and biosynthetic steps that might be involved. Finally, we offer recommendations to accelerate the discovery of the biochemical pathways in these challenging but intriguing systems.
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Affiliation(s)
- Darren C. J. Wong
- Ecology and Evolution, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | - Eran Pichersky
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
| | - Rod Peakall
- Ecology and Evolution, Research School of Biology, The Australian National University, Canberra, ACT, Australia
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40
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The draft genome of tropical fruit durian (Durio zibethinus). Nat Genet 2017; 49:1633-1641. [DOI: 10.1038/ng.3972] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 09/18/2017] [Indexed: 01/22/2023]
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41
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Suganya K, Govindan K, Prabha P, Murugan M. An extensive review on L-methioninase and its potential applications. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2017. [DOI: 10.1016/j.bcab.2017.09.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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42
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Sun J, Zhao D, Zhang F, Sun B, Zheng F, Huang M, Sun X, Li H. Joint direct injection and GC–MS chemometric approach for chemical profile and sulfur compounds of sesame-flavor Chinese Baijiu (Chinese liquor). Eur Food Res Technol 2017. [DOI: 10.1007/s00217-017-2938-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Bullock HA, Luo H, Whitman WB. Evolution of Dimethylsulfoniopropionate Metabolism in Marine Phytoplankton and Bacteria. Front Microbiol 2017; 8:637. [PMID: 28469605 PMCID: PMC5395565 DOI: 10.3389/fmicb.2017.00637] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 03/28/2017] [Indexed: 11/13/2022] Open
Abstract
The elucidation of the pathways for dimethylsulfoniopropionate (DMSP) synthesis and metabolism and the ecological impact of DMSP have been studied for nearly 70 years. Much of this interest stems from the fact that DMSP metabolism produces the climatically active gas dimethyl sulfide (DMS), the primary natural source of sulfur to the atmosphere. DMSP plays many important roles for marine life, including use as an osmolyte, antioxidant, predator deterrent, and cryoprotectant for phytoplankton and as a reduced carbon and sulfur source for marine bacteria. DMSP is hypothesized to have become abundant in oceans approximately 250 million years ago with the diversification of the strong DMSP producers, the dinoflagellates. This event coincides with the first genome expansion of the Roseobacter clade, known DMSP degraders. Structural and mechanistic studies of the enzymes of the bacterial DMSP demethylation and cleavage pathways suggest that exposure to DMSP led to the recruitment of enzymes from preexisting metabolic pathways. In some cases, such as DmdA, DmdD, and DddP, these enzymes appear to have evolved to become more specific for DMSP metabolism. By contrast, many of the other enzymes, DmdB, DmdC, and the acrylate utilization hydratase AcuH, have maintained broad functionality and substrate specificities, allowing them to carry out a range of reactions within the cell. This review will cover the experimental evidence supporting the hypothesis that, as DMSP became more readily available in the marine environment, marine bacteria adapted enzymes already encoded in their genomes to utilize this new compound.
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Affiliation(s)
- Hannah A Bullock
- Department of Microbiology, University of Georgia, AthensGA, USA
| | - Haiwei Luo
- School of Life Sciences, The Chinese University of Hong KongHong Kong, Hong Kong
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44
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Enhanced production of 3-methylthiopropionic ethyl ester in native Iranian Cucumis melo L. Group dudaim under regulated deficit irrigation. J Funct Foods 2017. [DOI: 10.1016/j.jff.2016.12.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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45
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Portnoy V, Gonda I, Galpaz N, Tzuri G, Lev S, Kenigswald M, Fei Z, Barad O, Harel-Beja R, Doron-Faigenboim A, Bar E, Sa’ar U, Xu Y, Lombardi N, Mao L, Jiao C, Kol G, Gur A, Fallik E, Tadmor Y, Burger Y, Schaffer A, Giovannoni J, Lewinsohn E, Katzir N. Next-generation sequencing-based QTL mapping for unravelling causative genes associated with melon fruit quality traits. ACTA ACUST UNITED AC 2017. [DOI: 10.17660/actahortic.2017.1151.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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46
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Batista Silva W, Daloso DM, Fernie AR, Nunes-Nesi A, Araújo WL. Can stable isotope mass spectrometry replace radiolabelled approaches in metabolic studies? PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 249:59-69. [PMID: 27297990 DOI: 10.1016/j.plantsci.2016.05.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 04/21/2016] [Accepted: 05/13/2016] [Indexed: 05/03/2023]
Abstract
Metabolic pathways and the key regulatory points thereof can be deduced using isotopically labelled substrates. One prerequisite is the accurate measurement of the labeling pattern of targeted metabolites. The subsequent estimation of metabolic fluxes following incubation in radiolabelled substrates has been extensively used. Radiolabelling is a sensitive approach and allows determination of total label uptake since the total radiolabel content is easy to detect. However, the incubation of cells, tissues or the whole plant in a stable isotope enriched environment and the use of either mass spectrometry or nuclear magnetic resonance techniques to determine label incorporation within specific metabolites offers the possibility to readily obtain metabolic information with higher resolution. It additionally also offers an important complement to other post-genomic strategies such as metabolite profiling providing insights into the regulation of the metabolic network and thus allowing a more thorough description of plant cellular function. Thus, although safety concerns mean that stable isotope feeding is generally preferred, the techniques are in truth highly complementary and application of both approaches in tandem currently probably provides the best route towards a comprehensive understanding of plant cellular metabolism.
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Affiliation(s)
- Willian Batista Silva
- Max Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa-MG, Brazil.
| | - Danilo M Daloso
- Max-Planck-Institute of Molecular Plant Physiology Am Mühlenberg 1, 14476,Golm Potsdam, Germany.
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology Am Mühlenberg 1, 14476,Golm Potsdam, Germany.
| | - Adriano Nunes-Nesi
- Max Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa-MG, Brazil.
| | - Wagner L Araújo
- Max Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa-MG, Brazil.
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Shen SL, Yin XR, Zhang B, Xie XL, Jiang Q, Grierson D, Chen KS. CitAP2.10 activation of the terpene synthase CsTPS1 is associated with the synthesis of (+)-valencene in 'Newhall' orange. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:4105-15. [PMID: 27194737 PMCID: PMC5301923 DOI: 10.1093/jxb/erw189] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Aroma is a vital characteristic that determines the quality and commercial value of citrus fruits, and characteristic volatiles have been analyzed in different citrus species. In sweet orange, Citrus sinensis, the sesquiterpene (+)-valencene is a key volatile compound in the fruit peel. Valencene synthesis is catalyzed by the terpene synthase CsTPS1, but the transcriptional mechanisms controlling its gene expression are unknown. Here, the AP2/ERF (APETALA2/ethylene response factor) transcription factor, CitAP2.10, is characterized as a regulator of (+)-valencene synthesis. The expression pattern of CitAP2.10 was positively correlated with (+)-valencene content and CsTPS1 expression. Dual-luciferase assays indicated that CitAP2.10 could trans-activate the CsTPS1 promoter. Ethylene enhanced expression of CitAP2.10 and this effect was abolished by the ethylene antagonist 1-methylcyclopropene. The role and function of CitAP2.10 in (+)-valencene biosynthesis were confirmed using the Arabidopsis homolog (AtWRI1), which also transiently activated the CsTPS1 promoter. Furthermore, transient over-expression of CitAP2.10 triggered (+)-valencene biosynthesis in sweet orange fruit. These results indicate that CitAP2.10 regulates (+)-valencene synthesis via induction of CsTPS1 mRNA accumulation.
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Affiliation(s)
- Shu-Ling Shen
- College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China
| | - Xue-Ren Yin
- College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China
| | - Bo Zhang
- College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China
| | - Xiu-Lan Xie
- College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China
| | - Qian Jiang
- College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China
| | - Donald Grierson
- College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, UK
| | - Kun-Song Chen
- College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China
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48
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Galili G, Amir R, Fernie AR. The Regulation of Essential Amino Acid Synthesis and Accumulation in Plants. ANNUAL REVIEW OF PLANT BIOLOGY 2016; 67:153-78. [PMID: 26735064 DOI: 10.1146/annurev-arplant-043015-112213] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Although amino acids are critical for all forms of life, only proteogenic amino acids that humans and animals cannot synthesize de novo and therefore must acquire in their diets are classified as essential. Nine amino acids-lysine, methionine, threonine, phenylalanine, tryptophan, valine, isoleucine, leucine, and histidine-fit this definition. Despite their nutritional importance, several of these amino acids are present in limiting quantities in many of the world's major crops. In recent years, a combination of reverse genetic and biochemical approaches has been used to define the genes encoding the enzymes responsible for synthesizing, degrading, and regulating these amino acids. In this review, we describe recent advances in our understanding of the metabolism of the essential amino acids, discuss approaches for enhancing their levels in plants, and appraise efforts toward their biofortification in crop plants.
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Affiliation(s)
- Gad Galili
- Department of Plant Science, Weizmann Institute of Science, Rehovot 76100, Israel;
| | - Rachel Amir
- Laboratory of Plant Science, MIGAL-Galilee Research Institute, Kiryat Shmona 11016, Israel;
| | - Alisdair R Fernie
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany;
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Kong Q, Gao L, Cao L, Liu Y, Saba H, Huang Y, Bie Z. Assessment of Suitable Reference Genes for Quantitative Gene Expression Studies in Melon Fruits. FRONTIERS IN PLANT SCIENCE 2016; 7:1178. [PMID: 27536316 PMCID: PMC4971084 DOI: 10.3389/fpls.2016.01178] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 07/21/2016] [Indexed: 05/03/2023]
Abstract
Melon (Cucumis melo L.) is an attractive model plant for investigating fruit development because of its morphological, physiological, and biochemical diversity. Quantification of gene expression by quantitative reverse transcription polymerase chain reaction (qRT-PCR) with stably expressed reference genes for normalization can effectively elucidate the biological functions of genes that regulate fruit development. However, the reference genes for data normalization in melon fruits have not yet been systematically validated. This study aims to assess the suitability of 20 genes for their potential use as reference genes in melon fruits. Expression variations of these genes were measured in 24 samples that represented different developmental stages of fertilized and parthenocarpic melon fruits by qRT-PCR analysis. GeNorm identified ribosomal protein L (CmRPL) and cytosolic ribosomal protein S15 (CmRPS15) as the best pair of reference genes, and as many as five genes including CmRPL, CmRPS15, TIP41-like family protein (CmTIP41), cyclophilin ROC7 (CmCYP7), and ADP ribosylation factor 1 (CmADP) were required for more reliable normalization. NormFinder ranked CmRPS15 as the best single reference gene, and RAN GTPase gene family (CmRAN) and TATA-box binding protein (CmTBP2) as the best combination of reference genes in melon fruits. Their effectiveness was further validated by parallel analyses on the activities of soluble acid invertase and sucrose phosphate synthase, and expression profiles of their respective encoding genes CmAIN2 and CmSPS1, as well as sucrose contents during melon fruit ripening. The validated reference genes will help to improve the accuracy of gene expression studies in melon fruits.
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Affiliation(s)
| | | | | | | | | | | | - Zhilong Bie
- *Correspondence: Qiusheng Kong, Zhilong Bie,
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