1
|
Li M, Tao H. Enhancing structural diversity of terpenoids by multisubstrate terpene synthases. Beilstein J Org Chem 2024; 20:959-972. [PMID: 38711588 PMCID: PMC11070974 DOI: 10.3762/bjoc.20.86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 04/09/2024] [Indexed: 05/08/2024] Open
Abstract
Terpenoids are one of the largest class of natural products with diverse structures and activities. This enormous diversity is embedded in enzymes called terpene synthases (TSs), which generate diverse terpene skeletons via sophisticated cyclization cascades. In addition to the many highly selective TSs, there are many promiscuous TSs that accept multiple prenyl substrates, or even noncanonical ones, with 6, 7, 8, 11, and 16 carbon atoms, synthesized via chemical approaches, C-methyltransferases, or engineered lepidopteran mevalonate pathways. The substrate promiscuity of TSs not only expands the structural diversity of terpenes but also highlights their potential for the discovery of novel terpenoids via combinatorial biosynthesis. In this review, we focus on the current knowledge on multisubstrate terpene synthases (MSTSs) and highlight their potential applications.
Collapse
Affiliation(s)
- Min Li
- Department of Otolaryngology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei 430071, China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University, Wuhan, Hubei 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - Hui Tao
- Department of Otolaryngology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei 430071, China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University, Wuhan, Hubei 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| |
Collapse
|
2
|
Kiran NR, Narayanan AK, Mohapatra S, Gupta P, Nagegowda DA. Analysis of root volatiles and functional characterization of a root-specific germacrene A synthase in Artemisia pallens. PLANTA 2024; 259:58. [PMID: 38308700 DOI: 10.1007/s00425-024-04334-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/06/2024] [Indexed: 02/05/2024]
Abstract
MAIN CONCLUSION The study demonstrated that Artemisia pallens roots can be a source of terpene-rich essential oil and root-specific ApTPS1 forms germacrene A contributing to major root volatiles. Davana (Artemisia pallens Bess) is a valuable aromatic herb within the Asteraceae family, highly prized for its essential oil (EO) produced in the aerial parts. However, the root volatile composition, and the genes responsible for root volatiles have remained unexplored until now. Here, we show that A. pallens roots possess distinct oil bodies and yields ~ 0.05% of EO, which is primarily composed of sesquiterpenes β-elemene, neryl isovalerate, β-selinene, and α-selinene, and trace amounts of monoterpenes β-myrcene, D-limonene. This shows that, besides aerial parts, roots of davana can also be a source of unique EO. Moreover, we functionally characterized a terpene synthase (ApTPS1) that exhibited high in silico expression in the root transcriptome. The recombinant ApTPS1 showed the formation of β-elemene and germacrene A with E,E-farnesyl diphosphate (FPP) as a substrate. Detailed analysis of assay products revealed that β-elemene was the thermal rearrangement product of germacrene A. The functional expression of ApTPS1 in Saccharomyces cerevisiae confirmed the in vivo germacrene A synthase activity of ApTPS1. At the transcript level, ApTPS1 displayed predominant expression in roots, with significantly lower level of expression in other tissues. This expression pattern of ApTPS1 positively correlated with the tissue-specific accumulation level of germacrene A. Overall, these findings provide fundamental insights into the EO profile of davana roots, and the contribution of ApTPS1 in the formation of a major root volatile.
Collapse
Affiliation(s)
- N R Kiran
- Molecular Plant Biology and Biotechnology Lab, CSIR-CIMAP Research Centre, Bengaluru, 560065, India
| | - Ananth Krishna Narayanan
- Molecular Plant Biology and Biotechnology Lab, CSIR-CIMAP Research Centre, Bengaluru, 560065, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Soumyajit Mohapatra
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Priyanka Gupta
- Molecular Plant Biology and Biotechnology Lab, CSIR-CIMAP Research Centre, Bengaluru, 560065, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Dinesh A Nagegowda
- Molecular Plant Biology and Biotechnology Lab, CSIR-CIMAP Research Centre, Bengaluru, 560065, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| |
Collapse
|
3
|
Zhang X, Chen X, Teixeira da Silva JA, Zhang T, Xiong Y, Li Y, Yuan Y, Pan X, Ma G. Characterization of sandalwood (E,E)-α-farnesene synthase whose overexpression enhances cold tolerance through jasmonic acid biosynthesis and signaling in Arabidopsis. PLANTA 2023; 258:54. [PMID: 37515637 DOI: 10.1007/s00425-023-04212-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 07/20/2023] [Indexed: 07/31/2023]
Abstract
MAIN CONCLUSION Santalum album (E,E)-α-farnesene synthase catalyzes FPP into (E,E)-α-farnesene. Overexpression of the SaAFS gene positively improved cold stress tolerance through JA biosynthesis and signaling pathways in Arabidopsis. Volatile terpenoids are released from plants that suffer negative effects following exposure to various biotic and abiotic stresses. Recent studies revealed that (E,E)-α-farnesene synthase (AFS) plays a significant role in a plant's defence against biotic attack. However, little is known about whether AFS contributes to plant resistance to cold stress. In this study, a SaAFS gene was isolated from Indian sandalwood (Santalum album L.) and functionally characterized. The SaAFS protein mainly converts farnesyl diphosphate to (E,E)-α-farnesene. SaAFS was clustered into the AFS clade from angiosperms, suggesting a highly conserved enzyme. SaAFS displayed a significant response to cold stress and methyl jasmonate. SaAFS overexpression (OE) in Arabidopsis enhanced cold tolerance by increasing proline content, reducing malondialdehyde content, electrolyte leakage, and accumulating reactive oxygen species. Transcriptomic analysis revealed that upregulated genes related to stress response and JA biosynthesis and signaling were detected in SaAFS-OE lines compared with wild type plants that were exposed to cold stress. Endogenous JA and jasmonoyl-isoleucine content increased significantly in SaAFS-OE lines exposed to cold stress. Collectively considered, these results suggest that the SaAFS gene is a positive regulator during cold stress tolerance via JA biosynthesis and signaling pathways.
Collapse
Affiliation(s)
- Xinhua Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.
| | - Xiaohong Chen
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | | | - Ting Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Yuping Xiong
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Yuan Li
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Yunfei Yuan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Xiaoping Pan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Guohua Ma
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| |
Collapse
|
4
|
Ataide LMS, Tabanca N, Canon MA, Schnell EQ, Narvaez TI, Cloonan KR, Kendra PE, Carrillo D, Revynthi AM. Volatile Characterization of Lychee Plant Tissues ( Litchi chinensis) and the Effect of Key Compounds on the Behavior of the Lychee Erinose Mite ( Aceria litchii). Biomolecules 2023; 13:933. [PMID: 37371513 DOI: 10.3390/biom13060933] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Herbivore-Induced Plant Volatiles (HIPVs) are volatile signals emitted by plants to deter herbivores and attract their natural enemies. To date, it is unknown how lychee plants, Litchi chinensis, respond to the induction of leaf galls (erinea) caused by the lychee erinose mite (LEM), Aceria litchii. Aiming to reveal the role of HIPVs in this plant-mite interaction, we investigated changes in the volatile profile of lychee plants infested by LEM and their role on LEM preferences. The volatile profile of uninfested (flower buds, fruit, leaves and new leaf shoots) and infested plant tissue were characterized under different levels of LEM infestation. Volatiles were collected using head-space-solid phase microextraction (HS-SPME) followed by gas chromatography-mass spectrometry (GC-MS) analyses. Fifty-eight volatiles, including terpenoids, alcohols, aldehydes, alkanes, esters, and ketones classes were identified. Using dual-choice bioassays, we investigated the preference of LEM to uninfested plant tissues and to the six most abundant plant volatiles identified. Uninfested new leaf shoots were the most attractive plant tissues to LEM and LEM attraction or repellence to volatiles were mostly influenced by compound concentration. We discuss possible applications of our findings in agricultural settings.
Collapse
Affiliation(s)
- Livia M S Ataide
- Tropical Research and Education Center, University of Florida, 18905 SW 280 ST, Homestead, FL 33031, USA
| | - Nurhayat Tabanca
- Subtropical Horticulture Research Station, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), 13601 Old Cutler Road, Miami, FL 33158, USA
| | - Maria A Canon
- Tropical Research and Education Center, University of Florida, 18905 SW 280 ST, Homestead, FL 33031, USA
| | - Elena Q Schnell
- Subtropical Horticulture Research Station, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), 13601 Old Cutler Road, Miami, FL 33158, USA
| | - Teresa I Narvaez
- Subtropical Horticulture Research Station, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), 13601 Old Cutler Road, Miami, FL 33158, USA
| | - Kevin R Cloonan
- Subtropical Horticulture Research Station, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), 13601 Old Cutler Road, Miami, FL 33158, USA
| | - Paul E Kendra
- Subtropical Horticulture Research Station, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), 13601 Old Cutler Road, Miami, FL 33158, USA
| | - Daniel Carrillo
- Tropical Research and Education Center, University of Florida, 18905 SW 280 ST, Homestead, FL 33031, USA
| | - Alexandra M Revynthi
- Tropical Research and Education Center, University of Florida, 18905 SW 280 ST, Homestead, FL 33031, USA
| |
Collapse
|
5
|
Lanier ER, Andersen TB, Hamberger B. Plant terpene specialized metabolism: complex networks or simple linear pathways? THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:1178-1201. [PMID: 36891828 PMCID: PMC11166267 DOI: 10.1111/tpj.16177] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/28/2023] [Accepted: 03/06/2023] [Indexed: 05/31/2023]
Abstract
From the perspectives of pathway evolution, discovery and engineering of plant specialized metabolism, the nature of the biosynthetic routes represents a critical aspect. Classical models depict biosynthesis typically from an end-point angle and as linear, for example, connecting central and specialized metabolism. As the number of functionally elucidated routes increased, the enzymatic foundation of complex plant chemistries became increasingly well understood. The perception of linear pathway models has been severely challenged. With a focus on plant terpenoid specialized metabolism, we review here illustrative examples supporting that plants have evolved complex networks driving chemical diversification. The completion of several diterpene, sesquiterpene and monoterpene routes shows complex formation of scaffolds and their subsequent functionalization. These networks show that branch points, including multiple sub-routes, mean that metabolic grids are the rule rather than the exception. This concept presents significant implications for biotechnological production.
Collapse
Affiliation(s)
| | | | - Björn Hamberger
- Department of Biochemistry and Molecular Biology, Michigan State University, Molecular Plant Sciences Building, 1066 Bogue Street, East Lansing, Michigan, 48824, USA
| |
Collapse
|
6
|
Chen X, Wang MY, Deng CH, Beatson RA, Templeton KR, Atkinson RG, Nieuwenhuizen NJ. The hops (Humulus lupulus) genome contains a mid-sized terpene synthase family that shows wide functional and allelic diversity. BMC PLANT BIOLOGY 2023; 23:280. [PMID: 37231379 DOI: 10.1186/s12870-023-04283-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/14/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND Hops (Humulus lupulus L.) are a dioecious climbing perennial, with the dried mature "cones" (strobili) of the pistillate/female inflorescences being widely used as both a bittering agent and to enhance the flavour of beer. The glandular trichomes of the bract and bracteole flowering structures of the cones produce an abundance of secondary metabolites, such as terpenoids, bitter acids and prenylated phenolics depending on plant genetics, developmental stage and environment. More knowledge is required on the functional and allelic diversity of terpene synthase (TPS) genes responsible for the biosynthesis of volatile terpenes to assist in flavour-directed hop breeding. RESULTS Major volatile terpene compounds were identified using gas chromatography-mass spectrometry (GC-MS) in the ripe cones of twenty-one hop cultivars grown in New Zealand. All cultivars produced the monoterpene β-myrcene and the sesquiterpenes α-humulene and β-caryophyllene, but the quantities varied broadly. Other terpenes were found in large quantities in only a smaller subset of cultivars, e.g. β-farnesene (in seven cultivars) and α-pinene (in four). In four contrasting cultivars (Wakatu™, Wai-iti™, Nelson Sauvin™, and 'Nugget'), terpene production during cone development was investigated in detail, with concentrations of some of the major terpenes increasing up to 1000-fold during development and reaching maximal levels from 50-60 days after flowering. Utilising the published H. lupulus genome, 87 putative full-length and partial terpene synthase genes were identified. Alleles corresponding to seven TPS genes were amplified from ripe cone cDNA from multiple cultivars and subsequently functionally characterised by transient expression in planta. Alleles of the previously characterised HlSTS1 produced humulene/caryophyllene as the major terpenes. HlRLS alleles produced (R)-(-)-linalool, whilst alleles of two sesquiterpene synthase genes, HlAFS1 and HlAFS2 produced α-farnesene. Alleles of HlMTS1, HlMTS2 and HlTPS1 were inactive in all the hop cultivars studied. CONCLUSIONS Alleles of four TPS genes were identified and shown to produce key aroma volatiles in ripe hop cones. Multiple expressed but inactive TPS alleles were also identified, suggesting that extensive loss-of-function has occurred during domestication and breeding of hops. Our results can be used to develop hop cultivars with novel/improved terpene profiles using marker-assisted breeding strategies to select for, or against, specific TPS alleles.
Collapse
Affiliation(s)
- Xiuyin Chen
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Mindy Y Wang
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Cecilia H Deng
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Ron A Beatson
- PFR, 55 Old Mill Road, RD 3, Motueka, 7198, New Zealand
| | | | - Ross G Atkinson
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Niels J Nieuwenhuizen
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand.
| |
Collapse
|
7
|
Wang W, Wang MY, Zeng Y, Chen X, Wang X, Barrington AM, Tao J, Atkinson RG, Nieuwenhuizen NJ. The terpene synthase (TPS) gene family in kiwifruit shows high functional redundancy and a subset of TPS likely fulfil overlapping functions in fruit flavour, floral bouquet and defence. MOLECULAR HORTICULTURE 2023; 3:9. [PMID: 37789478 PMCID: PMC10514967 DOI: 10.1186/s43897-023-00057-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/03/2023] [Indexed: 10/05/2023]
Abstract
Volatile terpenes are important compounds that influence fruit flavour and aroma of kiwifruit. Terpenes in plants also impact on the floral bouquet and defence against pests and pathogens in leaves and fruit. To better understand the overlapping roles that terpenes may fulfil in plants, a systematic gene, chemical and biochemical analysis of terpenes and terpene synthases (TPS) was undertaken in Red5 kiwifruit (Actinidia spp.). Analysis of the Red5 genome shows it contains only 22 TPS gene models, of which fifteen encode full-length TPS. Thirteen TPS can account for the major terpene volatiles produced in different tissues of Red5 kiwifruit and in response to different stimuli. The small Red5 TPS family displays surprisingly high functional redundancy with five TPS producing linalool/nerolidol. Treatment of leaves and fruit with methyl jasmonate enhanced expression of a subset of defence-related TPS genes and stimulated the release of terpenes. Six TPS genes were induced upon herbivory of leaves by the economically important insect pest Ctenopseustis obliquana (brown-headed leaf roller) and emission, but not accumulation, of (E)- and (Z)-nerolidol was strongly linked to herbivory. Our results provide a framework to understand the overlapping biological and ecological roles of terpenes in Actinidia and other horticultural crops.
Collapse
Affiliation(s)
- Wu Wang
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, New Zealand
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014 China
| | - Mindy Y. Wang
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, New Zealand
| | - Yunliu Zeng
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 People’s Republic of China
| | - Xiuyin Chen
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, New Zealand
| | - Xiaoyao Wang
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070 People’s Republic of China
| | - Anne M. Barrington
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, New Zealand
| | - Jianmin Tao
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Ross G. Atkinson
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, New Zealand
| | - Niels J. Nieuwenhuizen
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, New Zealand
| |
Collapse
|
8
|
Souleyre EJF, Nieuwenhuizen NJ, Wang MY, Winz RA, Matich AJ, Ileperuma NR, Tang H, Baldwin SJ, Wang T, List BW, Hoeata KA, Popowski EA, Atkinson RG. Alcohol acyl transferase genes at a high-flavor intensity locus contribute to ester biosynthesis in kiwifruit. PLANT PHYSIOLOGY 2022; 190:1100-1116. [PMID: 35916752 PMCID: PMC9516725 DOI: 10.1093/plphys/kiac316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Volatile esters are key compounds contributing to flavor intensity in commonly consumed fruits including apple (Malus domestica), strawberry (Fragaria spp.), and banana (Musa sapientum). In kiwifruit (Actinidia spp.), ethyl butanoate and other esters have been proposed to contribute fruity, sweet notes to commercial cultivars. Here, we investigated the genetic basis for ester production in Actinidia in an A. chinensis mapping population (AcMPO). A major quantitative trait loci for the production of multiple esters was identified at the high-flavor intensity (HiFI) locus on chromosome 20. This locus co-located with eight tandemly arrayed alcohol acyl transferase genes in the Red5 genome that were expressed in a ripening-specific fashion that corresponded with ester production. Biochemical characterization suggested two genes at the HiFI locus, alcohol acyl transferase 16-b/c (AT16-MPb/c), probably contributed most to the production of ethyl butanoate. A third gene, AT16-MPa, probably contributed more to hexyl butanoate and butyl hexanoate production, two esters that segregated in AcMPO. Sensory analysis of AcMPO indicated that fruit from segregating lines with high ester concentrations were more commonly described as being "fruity" as opposed to "beany". The downregulation of AT16-MPa-c by RNAi reduced ester production in ripe "Hort16A" fruit by >90%. Gas chromatography-olfactometry indicated the loss of the major "fruity" notes contributed by ethyl butanoate. A comparison of unimproved Actinidia germplasm with those of commercial cultivars indicated that the selection of fruit with high concentrations of alkyl esters (but not green note aldehydes) was probably an important selection trait in kiwifruit cultivation. Understanding ester production at the HiFI locus is a critical step toward maintaining and improving flavor intensity in kiwifruit.
Collapse
Affiliation(s)
| | - Niels J Nieuwenhuizen
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Auckland 1142, New Zealand
| | - Mindy Y Wang
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Auckland 1142, New Zealand
| | - Robert A Winz
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Auckland 1142, New Zealand
| | - Adam J Matich
- Plant and Food Research Ltd (PFR), Palmerston North 4442, New Zealand
| | - Nadeesha R Ileperuma
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Auckland 1142, New Zealand
| | - Haidee Tang
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Auckland 1142, New Zealand
| | | | - Tianchi Wang
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Auckland 1142, New Zealand
| | - Blake W List
- Plant and Food Research Ltd (PFR), Lincoln, 7608, New Zealand
| | | | | | - Ross G Atkinson
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Auckland 1142, New Zealand
| |
Collapse
|
9
|
Cheng T, Zhang K, Guo J, Yang Q, Li Y, Xian M, Zhang R. Highly efficient biosynthesis of β-caryophyllene with a new sesquiterpene synthase from tobacco. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:39. [PMID: 35468840 PMCID: PMC9040381 DOI: 10.1186/s13068-022-02136-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/14/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND β-Caryophyllene, a kind of bicyclic sesquiterpene, is mainly used as a spice in the food and cosmetic industries. Furthermore, it also has significant value in the pharmaceutical industry and is now considered to be used as a new fuel. As a chemical energy heterotrophic microorganism, Escherichia coli can produce a large amount of acetyl-CoA through aerobic respiration, and acetyl-CoA is the common precursor substance in the biosynthesis of all terpenoids. Therefore, E. coli has the potential to be a cell factory to produce terpenoids. RESULTS A new gene of β-caryophyllene synthase (TPS7) was found by analyzing the genome of Nicotiana tabacum L. using bioinformatics methods. The gene was overexpressed in engineered E. coli with a heterogeneous mevalonate (MVA) pathway to build a recombinant strain CAR1. Subsequent cultivation experiments in shake flask of engineered strain CAR1 verified that 16.1 mg/L β-caryophyllene was detected from the fermentation broth in the shake flask after induction for 24 h with IPTG. The toxic by-product of farnesyl acetate was detected during the process, and CAR1 showed a heavily cellular accumulation of product. We constructed an engineered strain CAR2, in which the downstream genes of the MVA pathway were integrated into the E. coli chromosome, successfully increasing β-caryophyllene production to 100.3 mg/L. The highest production of β-caryophyllene during the fed-batch fermentation was 4319 mg/L. Then we employed in situ extraction fermentation to successfully increase the production of β-caryophyllene by 20% to 5142 mg/L. CONCLUSION A new sesquiterpene synthase, TPS7, from tobacco was found to be able to produce β-caryophyllene with high efficiency. Based on this, an engineered E. coli was constructed to produce a much higher concentration of β-caryophyllene than the previous studies. During the fermentation process, we observed that β-caryophyllene tends to accumulate in intracellular space, which will eventually influence the activity of engineered E. coli. As a result, we solved this by metabolism regulation and in situ extractive fermentation.
Collapse
Affiliation(s)
- Tao Cheng
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Kai Zhang
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Jing Guo
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Qing Yang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Yiting Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China.
| | - Mo Xian
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rubing Zhang
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
10
|
An Integrative Volatile Terpenoid Profiling and Transcriptomics Analysis in Hoya cagayanensis, Hoya lacunosa and Hoya coriacea (Apocynaceae, Marsdenieae). HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8030224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hoya’s R.Br. attractive flower shapes and unique scents make it suitable to be exploited as a new source of tropical fragrance. Therefore, this study aims to elucidate the biosynthesis of secondary metabolites using phytochemical and transcriptomic approaches to understand the mechanisms of scents biosynthesis, especially terpenoid in Hoya. Three Hoya flower species were selected in this study: Hoya cagayanensis, Hoya lacunosa, and Hoya coriacea. The secondary metabolite profiles characterizing scents on flowers were performed using head space solid phase microextraction (HS-SPME). Gas chromatography-mass spectrometry (GC-MS) revealed 23 compounds from H. cagayanensis, 14 from H. lacunose, and 36 from H. coriacea. Volatiles from the three species had different fragrance profiles, with β-ocimene and methyl salicylate compounds dominating the odor in H. cagayanensis. The 1-octane-3-ol was found highest in H. lacunosa, and (Z)-acid butyric, 3-hexenyl ester was found highest in H. coriacea. Subsequent studies were conducted to identify the biosynthesis pathway of secondary metabolites responsible for the aroma profile released by Hoya flowers through transcriptome sequencing using the Illumina Hiseq 4000 platform. A total of 109,240 (75.84%) unigenes in H. cagayanensis, 42,479 (69.00%) in H. lacunosa and 72,610 (70.55%) in H. coriacea of the total unigenes were successfully annotated using public databases such as NCBI-Nr, KEGG, InterPro, and Gene Ontology (GO). In conclusion, this study successfully identified the complete outline of terpenoid biosynthesis pathways for the first time in Hoya. This discovery could lead to the exploitation of new knowledge in producing high-value compounds using the synthetic biology approach.
Collapse
|
11
|
Sarkar T, Salauddin M, Roy A, Sharma N, Sharma A, Yadav S, Jha V, Rebezov M, Khayrullin M, Thiruvengadam M, Chung IM, Shariati MA, Simal-Gandara J. Minor tropical fruits as a potential source of bioactive and functional foods. Crit Rev Food Sci Nutr 2022; 63:6491-6535. [PMID: 35164626 DOI: 10.1080/10408398.2022.2033953] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Tropical fruits are defined as fruits that are grown in hot and humid regions within the Tropic of Cancer and Tropic of Capricorn, covering most of the tropical and subtropical areas of Asia, Africa, Central America, South America, the Caribbean and Oceania. Depending on the cultivation area covered, economic value and popularity these tropical fruits are divided into major and minor tropical fruits. There is an annual increment of 3.8% in terms of commercialization of the tropical fruits. In total 26 minor tropical fruits (Kiwifruit, Lutqua, Carambola, Tree Tomato, Elephant apple, Rambutan, Bay berry, Mangosteen, Bhawa, Loquat, Silver berry, Durian, Persimon, Longan, Passion fruit, Water apple, Pulasan, Indian gooseberry, Guava, Lychee, Annona, Pitaya, Sapodilla, Pepino, Jaboticaba, Jackfruit) have been covered in this work. The nutritional composition, phytochemical composition, health benefits, traditional use of these minor tropical fruits and their role in food fortification have been portrayed.
Collapse
Affiliation(s)
- Tanmay Sarkar
- Department of Food Processing Technology, Malda Polytechnic, West Bengal State Council of Technical Education, Malda, India
| | - Molla Salauddin
- Department of Food Processing Technology, Mir Madan Mohanlal Govt. Polytechnic, West Bengal State Council of Technical Education, Nadia, India
| | - Arpita Roy
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, India
| | - Nikita Sharma
- Department of Biotechnology, Delhi Technological University, Delhi, India
| | - Apoorva Sharma
- Department of Biotechnology, Delhi Technological University, Delhi, India
| | - Saanya Yadav
- Department of Biotechnology, Delhi Technological University, Delhi, India
| | - Vaishnavi Jha
- Department of Biotechnology, Delhi Technological University, Delhi, India
| | - Maksim Rebezov
- Liaocheng University, Liaocheng, Shandong, China
- V. M. Gorbatov Federal Research Center for Food Systems, Moscow, Russian Federation
- K.G. Razumovsky Moscow State University of Technologies, and Management (The First Cossack University), Moscow, Russian Federation
| | - Mars Khayrullin
- K.G. Razumovsky Moscow State University of Technologies, and Management (The First Cossack University), Moscow, Russian Federation
| | - Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul, Republic of Korea
| | - Ill-Min Chung
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul, Republic of Korea
| | - Mohammad Ali Shariati
- Liaocheng University, Liaocheng, Shandong, China
- K.G. Razumovsky Moscow State University of Technologies, and Management (The First Cossack University), Moscow, Russian Federation
| | - Jesus Simal-Gandara
- Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, Nutrition and Bromatology Group, Ourense, Spain
| |
Collapse
|
12
|
Rosenkranz M, Chen Y, Zhu P, Vlot AC. Volatile terpenes - mediators of plant-to-plant communication. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 108:617-631. [PMID: 34369010 DOI: 10.1111/tpj.15453] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Plants interact with other organisms employing volatile organic compounds (VOCs). The largest group of plant-released VOCs are terpenes, comprised of isoprene, monoterpenes, and sesquiterpenes. Mono- and sesquiterpenes are well-known communication compounds in plant-insect interactions, whereas the smallest, most commonly emitted terpene, isoprene, is rather assigned a function in combating abiotic stresses. Recently, it has become evident that different volatile terpenes also act as plant-to-plant signaling cues. Upon being perceived, specific volatile terpenes can sensitize distinct signaling pathways in receiver plant cells, which in turn trigger plant innate immune responses. This vastly extends the range of action of volatile terpenes, which not only protect plants from various biotic and abiotic stresses, but also convey information about environmental constraints within and between plants. As a result, plant-insect and plant-pathogen interactions, which are believed to influence each other through phytohormone crosstalk, are likely equally sensitive to reciprocal regulation via volatile terpene cues. Here, we review the current knowledge of terpenes as volatile semiochemicals and discuss why and how volatile terpenes make good signaling cues. We discuss how volatile terpenes may be perceived by plants, what are possible downstream signaling events in receiver plants, and how responses to different terpene cues might interact to orchestrate the net plant response to multiple stresses. Finally, we discuss how the signal can be further transmitted to the community level leading to a mutually beneficial community-scale response or distinct signaling with near kin.
Collapse
Affiliation(s)
- Maaria Rosenkranz
- Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum Muenchen, 85764, Neuherberg, Germany
| | - Yuanyuan Chen
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum Muenchen, 85764, Neuherberg, Germany
| | - Peiyuan Zhu
- Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum Muenchen, 85764, Neuherberg, Germany
| | - A Corina Vlot
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum Muenchen, 85764, Neuherberg, Germany
| |
Collapse
|
13
|
Nieuwenhuizen NJ, Chen X, Pellan M, Zhang L, Guo L, Laing WA, Schaffer RJ, Atkinson RG, Allan AC. Regulation of wound ethylene biosynthesis by NAC transcription factors in kiwifruit. BMC PLANT BIOLOGY 2021; 21:411. [PMID: 34496770 PMCID: PMC8425125 DOI: 10.1186/s12870-021-03154-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 08/02/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND The phytohormone ethylene controls many processes in plant development and acts as a key signaling molecule in response to biotic and abiotic stresses: it is rapidly induced by flooding, wounding, drought, and pathogen attack as well as during abscission and fruit ripening. In kiwifruit (Actinidia spp.), fruit ripening is characterized by two distinct phases: an early phase of system-1 ethylene biosynthesis characterized by absence of autocatalytic ethylene, followed by a late burst of autocatalytic (system-2) ethylene accompanied by aroma production and further ripening. Progress has been made in understanding the transcriptional regulation of kiwifruit fruit ripening but the regulation of system-1 ethylene biosynthesis remains largely unknown. The aim of this work is to better understand the transcriptional regulation of both systems of ethylene biosynthesis in contrasting kiwifruit organs: fruit and leaves. RESULTS A detailed molecular study in kiwifruit (A. chinensis) revealed that ethylene biosynthesis was regulated differently between leaf and fruit after mechanical wounding. In fruit, wound ethylene biosynthesis was accompanied by transcriptional increases in 1-aminocyclopropane-1-carboxylic acid (ACC) synthase (ACS), ACC oxidase (ACO) and members of the NAC class of transcription factors (TFs). However, in kiwifruit leaves, wound-specific transcriptional increases were largely absent, despite a more rapid induction of ethylene production compared to fruit, suggesting that post-transcriptional control mechanisms in kiwifruit leaves are more important. One ACS member, AcACS1, appears to fulfil a dominant double role; controlling both fruit wound (system-1) and autocatalytic ripening (system-2) ethylene biosynthesis. In kiwifruit, transcriptional regulation of both system-1 and -2 ethylene in fruit appears to be controlled by temporal up-regulation of four NAC (NAM, ATAF1/2, CUC2) TFs (AcNAC1-4) that induce AcACS1 expression by directly binding to the AcACS1 promoter as shown using gel-shift (EMSA) and by activation of the AcACS1 promoter in planta as shown by gene activation assays combined with promoter deletion analysis. CONCLUSIONS Our results indicate that in kiwifruit the NAC TFs AcNAC2-4 regulate both system-1 and -2 ethylene biosynthesis in fruit during wounding and ripening through control of AcACS1 expression levels but not in leaves where post-transcriptional/translational regulatory mechanisms may prevail.
Collapse
Affiliation(s)
- Niels J. Nieuwenhuizen
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142 New Zealand
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, 1142 New Zealand
| | - Xiuyin Chen
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142 New Zealand
| | - Mickaël Pellan
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142 New Zealand
| | - Lei Zhang
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142 New Zealand
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064 China
| | - Lindy Guo
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142 New Zealand
| | | | - Robert J. Schaffer
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, 1142 New Zealand
- PFR, 55 Old Mill Road, RD 3, Motueka, 7198 New Zealand
| | - Ross G. Atkinson
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142 New Zealand
| | - Andrew C. Allan
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142 New Zealand
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, 1142 New Zealand
| |
Collapse
|
14
|
Huang H, Kuo YW, Chuang YC, Yang YP, Huang LM, Jeng MF, Chen WH, Chen HH. Terpene Synthase-b and Terpene Synthase-e/f Genes Produce Monoterpenes for Phalaenopsis bellina Floral Scent. FRONTIERS IN PLANT SCIENCE 2021; 12:700958. [PMID: 34335666 PMCID: PMC8318001 DOI: 10.3389/fpls.2021.700958] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/21/2021] [Indexed: 05/25/2023]
Abstract
Orchids are the most species-rich plants and highly interactive with pollinators via visual or olfactory cues. Biosynthesis and emission of volatile organic compounds (VOCs) to the atmosphere facilitate the olfactory cues and ensure successful pollination. Phalaenopsis bellina is a scented orchid with monoterpenes as major VOCs, comprising linalool, geraniol, and their derivatives. Comparative transcriptomics analysis identified four terpene synthase-b (TPS-b) genes and two TPS-e/f genes with differential gene expression between scented and scentless Phalaenopsis species. Here, we confirmed their differential expression between scented and scentless Phalaenopsis orchids and excluded one TPS-b candidate. We analyzed the temporal and spatial expression and functionally characterized these TPSs. Both TPS-b and TPS-e/f genes showed an increased expression on blooming day or 3 days post-anthesis (D + 3) before the optimal emission of floral scent on D + 5, with especially high expression of PbTPS5 and PbTPS10. The TPS-b genes are expressed exclusively in reproductive organs, whereas the TPS-e/f genes are expressed in both reproductive and vegetative organs. In planta functional characterization of both PbTPS5 and PbTPS10 in tobacco and scentless Phalaenopsis plants did not produce terpenoids. Further ectopic expression in scented Phalaenopsis cultivar P. I-Hsin Venus showed that linalool was the main product, with PbTPS10 displaying 3-fold higher activity than PbTPS5. On in vitro enzyme assay with purified recombinant TPS-b proteins ectopically expressed in Escherichia coli, geraniol was the product catalyzed by PbTPS5 and PbTPS9. PbTPS3 was a linalool/(β)-cis-ocimene synthase and PbTPS4 a linalool synthase. In conclusion, both TPS-b and TPS-e/f enzymes orchestrated floral monoterpene biosynthesis in P. bellina.
Collapse
Affiliation(s)
- Hsin Huang
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Wei Kuo
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Chen Chuang
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Ya-Ping Yang
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Li-Min Huang
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Mei-Fen Jeng
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Huei Chen
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
| | - Hong-Hwa Chen
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
- Institute of Tropical Plant and Microbial Sciences, National Cheng Kung University, Tainan, Taiwan
| |
Collapse
|
15
|
Li J, Hu H, Chen Y, Xie J, Li J, Zeng T, Wang M, Luo J, Zheng R, Jongsma MA, Wang C. Tissue specificity of (E)-β-farnesene and germacrene D accumulation in pyrethrum flowers. PHYTOCHEMISTRY 2021; 187:112768. [PMID: 33932787 DOI: 10.1016/j.phytochem.2021.112768] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/21/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Plant defensive mimicry based on the aphid alarm pheromone (E)-β-farnesene (EβF) was previously shown to operate in Tanacetum cinerariifolium (Asteraceae) flowers. Germacrene D (GD), is another dominant volatile of T. cinerariifolium flowers and may modulate both defense and pollination. Here, we find that the increase in GD/EβF ratio at later developmental stages is correlated with the tissue distribution in the flower head: the total content of EβF and GD is similar, but GD accumulates comparatively more in the upper disk florets. Naphthol and N, N-dimethyl-p-phenylenediamine dihydrochloride (NADI)-stained purple ducts containing EβF and GD, were observed in the five petal lips of the corolla and two-lobed stigma of disk florets. By contrast in the peduncle, EβF accounts for nearly 80% of total terpenes, compared to 5% for GD. EβF is accumulated inside inner cortex cells and parenchyma cells of the pith in young peduncle. This is followed by the formation of terpene-filled axial secretory cavities parallel to the vascular bundles. In conclusion, the observed developmental and diurnal emissions of different EβF/GD ratios appear to be regulated by their tissue distribution.
Collapse
Affiliation(s)
- Jinjin Li
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Hao Hu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yu Chen
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jing Xie
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jiawen Li
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Tuo Zeng
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Manqun Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jing Luo
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Riru Zheng
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Maarten A Jongsma
- Business Unit Bioscience, Wageningen University and Research, Droevendaalsesteeg 1, 6708, PB Wageningen, the Netherlands.
| | - Caiyun Wang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.
| |
Collapse
|
16
|
Huang LM, Huang H, Chuang YC, Chen WH, Wang CN, Chen HH. Evolution of Terpene Synthases in Orchidaceae. Int J Mol Sci 2021; 22:6947. [PMID: 34203299 PMCID: PMC8268431 DOI: 10.3390/ijms22136947] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 01/04/2023] Open
Abstract
Terpenoids are the largest class of plant secondary metabolites and are one of the major emitted volatile compounds released to the atmosphere. They have functions of attracting pollinators or defense function, insecticidal properties, and are even used as pharmaceutical agents. Because of the importance of terpenoids, an increasing number of plants are required to investigate the function and evolution of terpene synthases (TPSs) that are the key enzymes in terpenoids biosynthesis. Orchidacea, containing more than 800 genera and 28,000 species, is one of the largest and most diverse families of flowering plants, and is widely distributed. Here, the diversification of the TPSs evolution in Orchidaceae is revealed. A characterization and phylogeny of TPSs from four different species with whole genome sequences is available. Phylogenetic analysis of orchid TPSs indicates these genes are divided into TPS-a, -b, -e/f, and g subfamilies, and their duplicated copies are increased in derived orchid species compared to that in the early divergence orchid, A. shenzhenica. The large increase of both TPS-a and TPS-b copies can probably be attributed to the pro-duction of different volatile compounds for attracting pollinators or generating chemical defenses in derived orchid lineages; while the duplications of TPS-g and TPS-e/f copies occurred in a species-dependent manner.
Collapse
Affiliation(s)
- Li-Min Huang
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan; (L.-M.H.); (H.H.); (Y.-C.C.); (W.-H.C.)
| | - Hsin Huang
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan; (L.-M.H.); (H.H.); (Y.-C.C.); (W.-H.C.)
| | - Yu-Chen Chuang
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan; (L.-M.H.); (H.H.); (Y.-C.C.); (W.-H.C.)
| | - Wen-Huei Chen
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan; (L.-M.H.); (H.H.); (Y.-C.C.); (W.-H.C.)
- Orchid Research and Development Center, National Cheng Kung University, Tainan 701, Taiwan
| | - Chun-Neng Wang
- Department of Life Sciences, Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei 106, Taiwan;
| | - Hong-Hwa Chen
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan; (L.-M.H.); (H.H.); (Y.-C.C.); (W.-H.C.)
- Orchid Research and Development Center, National Cheng Kung University, Tainan 701, Taiwan
| |
Collapse
|
17
|
Liang D, Li W, Yan X, Caiyin Q, Zhao G, Qiao J. Molecular and Functional Evolution of the Spermatophyte Sesquiterpene Synthases. Int J Mol Sci 2021; 22:ijms22126348. [PMID: 34198531 PMCID: PMC8232007 DOI: 10.3390/ijms22126348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 12/23/2022] Open
Abstract
Sesquiterpenes are important defense and signal molecules for plants to adapt to the environment, cope with stress, and communicate with the outside world, and their evolutionary history is closely related to physiological functions. In this study, the information of plant sesquiterpene synthases (STSs) with identified functions were collected and sorted to form a dataset containing about 500 members. The phylogeny of spermatophyte functional STSs was constructed based on the structural comparative analysis to reveal the sequence–structure–function relationships. We propose the evolutionary history of plant sesquiterpene skeletons, from chain structure to small rings, followed by large rings for the first time and put forward a more detailed function-driven hypothesis. Then, the evolutionary origins and history of spermatophyte STSs are also discussed. In addition, three newly identified STSs CaSTS2, CaSTS3, and CaSTS4 were analyzed in this functional evolutionary system, and their germacrene D products were consistent with the functional prediction. This demonstrates an application of the structure-based phylogeny in predicting STS function. This work will help us to understand evolutionary patterns and dynamics of plant sesquiterpenes and STSs and screen or design STSs with specific product profiles as functional elements for synthetic biology application.
Collapse
Affiliation(s)
- Dongmei Liang
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (D.L.); (W.L.); (X.Y.); (Q.C.); (G.Z.)
- Key Laboratory of Systems Bioengineering, Tianjin University, Ministry of Education, Tianjin 300072, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Weiguo Li
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (D.L.); (W.L.); (X.Y.); (Q.C.); (G.Z.)
- Key Laboratory of Systems Bioengineering, Tianjin University, Ministry of Education, Tianjin 300072, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xiaoguang Yan
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (D.L.); (W.L.); (X.Y.); (Q.C.); (G.Z.)
- Key Laboratory of Systems Bioengineering, Tianjin University, Ministry of Education, Tianjin 300072, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Qinggele Caiyin
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (D.L.); (W.L.); (X.Y.); (Q.C.); (G.Z.)
- Key Laboratory of Systems Bioengineering, Tianjin University, Ministry of Education, Tianjin 300072, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Guangrong Zhao
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (D.L.); (W.L.); (X.Y.); (Q.C.); (G.Z.)
- Key Laboratory of Systems Bioengineering, Tianjin University, Ministry of Education, Tianjin 300072, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jianjun Qiao
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (D.L.); (W.L.); (X.Y.); (Q.C.); (G.Z.)
- Key Laboratory of Systems Bioengineering, Tianjin University, Ministry of Education, Tianjin 300072, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- Frontiers Science Center for Synthetic Biology, Tianjin University, Ministry of Education, Tianjin 300072, China
- Correspondence: ; Tel.: +86-22-8740-2107
| |
Collapse
|
18
|
Zhang X, Teixeira da Silva JA, Niu M, Zhang T, Liu H, Zheng F, Yuan Y, Li Y, Fang L, Zeng S, Ma G. Functional characterization of an Indian sandalwood (Santalum album L.) dual-localized bifunctional nerolidol/linalool synthase gene involved in stress response. PHYTOCHEMISTRY 2021; 183:112610. [PMID: 33383368 DOI: 10.1016/j.phytochem.2020.112610] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 12/01/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
Essential oils extracted from the heartwood of Indian sandalwood (Santalum album L.) contain linalool and nerolidol as minor components. However, nerolidol/linalool synthase (NES/LIS), which produce linalool and nerolidol, have yet to be characterized in sandalwood. Using a transcriptomic-based approach, a terpene synthase gene was screened from unigenes of transcriptome data derived from S. album seedlings exposed to low temperature (4 °C). The enzyme encoded by these complementary DNAs belongs to the TPS-b clade. Recombinant SaNES/LIS is a bifunctional enzyme that can catalyze the formation of (E)-nerolidol from farnesyl diphosphate and linalool from geranyl diphosphate, respectively. Whereas SaNES/LIS was primarily localized in chloroplastids, both as granular fluorescence and as diffuse fluorescence, it was also detected in the cytosol of a limited number of cells. Agrobacterium tumefaciens-mediated transient gene expression in planta produced the same terpene products as those obtained in vitro. Real-time PCR analysis showed the highest expression of SaNES/LIS in fruits, with about a three-fold higher level than in leaves, followed by flowers, heartwood and roots. SaNES/LIS transcripts were differentially activated in different tissues in response to methyl jasmonate, cold, high temperature, strong illumination, and drought stress. Our results provide novel insight into the role of sandalwood terpenoids in response to various environmental stresses.
Collapse
Affiliation(s)
- Xinhua Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.
| | - Jaime A Teixeira da Silva
- Independent Researcher, P. O. Box 7, Miki Cho Post Office, Ikenobe 3011-2, Kagawa-Ken, 761-0799, Japan
| | - Meiyun Niu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Ting Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Huanfang Liu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Feng Zheng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Yunfei Yuan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Yuan Li
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Lin Fang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Songjun Zeng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Guohua Ma
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| |
Collapse
|
19
|
Liu B, Liu Q, Zhou Z, Yin H, Xie Y, Wei Y. Two terpene synthases in resistant Pinus massoniana contribute to defence against Bursaphelenchus xylophilus. PLANT, CELL & ENVIRONMENT 2021; 44:257-274. [PMID: 32833225 DOI: 10.1111/pce.13873] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 08/13/2020] [Accepted: 08/17/2020] [Indexed: 05/15/2023]
Abstract
Pine wood nematode (PWN; Bursaphelenchus xylophilus), a destructive pest of Pinus massoniana, is causing a severe epidemic of pine wilt disease in China. When invaded by PWN, resistant P. massoniana secretes an abundance of oleoresin terpenoids as a defensive strategy. However, regulatory mechanisms of this defence in resistant P. massoniana have yet to be elucidated. Here, we characterized two terpene synthase genes, α-pinene synthase (PmTPS4) and longifolene synthase (PmTPS21), identified in resistant P. massoniana and investigate the contribution of these genes to the oleoresin defence strategy in resistant masson pines. Up-regulation of these two genes in the stem supported their involvement in terpene biosynthesis as part of the defence against PWN. Recombinant protein expression revealed catalytic activity for the two PmTPSs, with PmTPS4 primarily producing α-pinene, while PmTPS21 produced α-pinene and longifolene simultaneously. The major enzymatic products of the two terpene synthases had inhibitory effects on PWN in vitro. We demonstrated that PmTPS4 and PmTPS21 played positive roles in terpene-defence mechanisms against PWN infestation. The major products of these terpene synthases could directly inhibit the survival rate of PWN in vitro. We revealed that PmTPS21 was a novel bifunctional enzyme capable of simultaneous production of both monoterpene and sesquiterpene.
Collapse
Affiliation(s)
- Bin Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Tree Breeding, Hangzhou, China
| | - Qinghua Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Tree Breeding, Hangzhou, China
| | - Zhichun Zhou
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Tree Breeding, Hangzhou, China
| | - Hengfu Yin
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Yini Xie
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Tree Breeding, Hangzhou, China
| | - Yongcheng Wei
- Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| |
Collapse
|
20
|
Boncan DAT, Tsang SS, Li C, Lee IH, Lam HM, Chan TF, Hui JH. Terpenes and Terpenoids in Plants: Interactions with Environment and Insects. Int J Mol Sci 2020; 21:E7382. [PMID: 33036280 PMCID: PMC7583029 DOI: 10.3390/ijms21197382] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/01/2020] [Accepted: 10/01/2020] [Indexed: 02/07/2023] Open
Abstract
The interactions of plants with environment and insects are bi-directional and dynamic. Consequently, a myriad of mechanisms has evolved to engage organisms in different types of interactions. These interactions can be mediated by allelochemicals known as volatile organic compounds (VOCs) which include volatile terpenes (VTs). The emission of VTs provides a way for plants to communicate with the environment, including neighboring plants, beneficiaries (e.g., pollinators, seed dispersers), predators, parasitoids, and herbivores, by sending enticing or deterring signals. Understanding terpenoid distribution, biogenesis, and function provides an opportunity for the design and implementation of effective and efficient environmental calamity and pest management strategies. This review provides an overview of plant-environment and plant-insect interactions in the context of terpenes and terpenoids as important chemical mediators of these abiotic and biotic interactions.
Collapse
Affiliation(s)
- Delbert Almerick T. Boncan
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong;
- Center for Soybean Research of the State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Stacey S.K. Tsang
- Simon F.S. Li Marine Science Laboratory, The Chinese University of Hong Kong, Shatin, Hong Kong; (S.S.K.T.); (C.L.); (I.H.T.L.)
| | - Chade Li
- Simon F.S. Li Marine Science Laboratory, The Chinese University of Hong Kong, Shatin, Hong Kong; (S.S.K.T.); (C.L.); (I.H.T.L.)
| | - Ivy H.T. Lee
- Simon F.S. Li Marine Science Laboratory, The Chinese University of Hong Kong, Shatin, Hong Kong; (S.S.K.T.); (C.L.); (I.H.T.L.)
| | - Hon-Ming Lam
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong;
- Center for Soybean Research of the State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Ting-Fung Chan
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong;
- Center for Soybean Research of the State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Jerome H.L. Hui
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong;
- Center for Soybean Research of the State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
- Simon F.S. Li Marine Science Laboratory, The Chinese University of Hong Kong, Shatin, Hong Kong; (S.S.K.T.); (C.L.); (I.H.T.L.)
| |
Collapse
|
21
|
Liu G, Yang M, Fu J. Identification and characterization of two sesquiterpene synthase genes involved in volatile-mediated defense in tea plant (Camellia sinensis). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 155:650-657. [PMID: 32858427 DOI: 10.1016/j.plaphy.2020.08.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Terpenes and their derivatives are vital components of tea aroma. Their constitution and quantity are highly important criteria for the sensory evaluation of teas. Biologically, terpenes are involved in chemical resistance of tea plant against biotic and/or abiotic stresses. The goal of this study is to identify volatile terpenes of tea plants implicated in defense against herbivores and to identify terpene synthase (TPS) genes for their biosynthesis. Upon herbivory by tea geometrid (Ectropis obliqua Prout), tea plants were found to emit two sesquiterpenes, (E, E)-α-farnesene and (E)-nerolidol, which were undetectable in intact tea plants. The induced emission of (E, E)-α-farnesene and (E)-nerolidol suggests that they function in either direct or indirect defense of tea plants against the tea geometrid. Candidate TPS genes were identified from the transcriptomes of tea plants infested by tea geometrids. Two dedicated sesquiterpene synthases, CsAFR and CsNES2, were identified. CsAFR belongs to the TPS-b clade and can catalyze the formation of (E, E)-α-farnesene from (E, E)-FPP. CsNES2 belongs to the TPS-g clade and can synthesize (E)-nerolidol using (E, E)-FPP. The two genes were also both dramatically upregulated by herbivore damage. In summary, we showed that two novel sesquiterpene synthase genes CsAFR and CsNSE2 are inducible by herbivory and responsible for the elevated emission of herbivore-induced (E, E)-α-farnesene and (E)-nerolidol, which are implicated in tea plant defense against herbivores.
Collapse
Affiliation(s)
- Guanhua Liu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, 310008, Hangzhou, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, 310008, Hangzhou, China; Graduate School of Chinese Academy of Agricultural Sciences, 100081, Beijing, China; College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
| | - Mei Yang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, 310008, Hangzhou, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, 310008, Hangzhou, China; Graduate School of Chinese Academy of Agricultural Sciences, 100081, Beijing, China
| | - Jianyu Fu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, 310008, Hangzhou, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, 310008, Hangzhou, China.
| |
Collapse
|
22
|
Bao T, Shadrack K, Yang S, Xue X, Li S, Wang N, Wang Q, Wang L, Gao X, Cronk Q. Functional Characterization of Terpene Synthases Accounting for the Volatilized-Terpene Heterogeneity in Lathyrus odoratus Cultivar Flowers. PLANT & CELL PHYSIOLOGY 2020; 61:1733-1749. [PMID: 32726442 DOI: 10.1093/pcp/pcaa100] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
Lathyrus odoratus (sweet pea) is an ornamental plant with exceptional floral scent, previously used as an experimental organism in the early development of Mendelian genetics. However, its terpene synthases (TPSs), which act as metabolic gatekeepers in the biosynthesis of volatile terpenoids, remain to be characterized. Auto-Headspace Solid-phase Microextraction/Gas chromatography-mass spectrometry analysis of floral volatile terpene constituents from seven sweet pea cultivars identified α-bergamotene, linalool, (-)-α-cubebene, geraniol, β-caryophyllene and β-sesquiphellandrene as the dominant compounds. RNA sequencing was performed to profile the transcriptome of L. odoratus flowers. Bioinformatic analysis identified eight TPS genes (acronymed as LoTPS) that were successfully cloned, heterologously expressed and functionally analyzed. LoTPS4 and LoTPS7, belonging to the TPS-b clade, biochemically catalyzed the formation of monoterpenes and sesquiterpenes. LoTPS3 and LoTPS8, placed in the TPS-a clade, also generated monoterpenes and sesquiterpenes, while LoTPS12 belonging to the TPS-g clade showed linalool/nerolidol synthase activity. Notably, biochemical assays of the recombinant LoTPS proteins revealed their catalytic promiscuity, and the enzymatic products were basically consistent with major volatile compounds released from sweet pea flowers. The data from our study lay the foundation for the chemical ecology, molecular genetics and biotechnological improvement of sweet pea and other legumes (Fabaceae).
Collapse
Affiliation(s)
- Tingting Bao
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Kimani Shadrack
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
- Department of Biological and Physical Sciences, Karatina University, Karatina, Kenya
| | - Song Yang
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Xinxin Xue
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - Shuying Li
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Ning Wang
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Qiuyue Wang
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Li Wang
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Xiang Gao
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Quentin Cronk
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
23
|
Dhandapani S, Tjhang JG, Jang IC. Production of multiple terpenes of different chain lengths by subcellular targeting of multi-substrate terpene synthase in plants. Metab Eng 2020; 61:397-405. [PMID: 32795613 DOI: 10.1016/j.ymben.2020.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 07/03/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022]
Abstract
Multi-substrate terpene synthases (TPSs) are distinct from typical TPSs that react with a single substrate. Although in vitro activity of few multi-substrate TPSs have been reported, in vivo characterization has not been well investigated for most of them. Here, a new TPS from Cananga odorata, CoTPS5, belonging to TPS-f subfamily was functionally characterized in vitro as well as in vivo. CoTPS5 reacted with multiple prenyl-pyrophosphate substrates of various chain lengths as a multi-substrate TPS. It catalyzed the formation of (E)-β-ocimene, (E,E)-α-farnesene and α-springene from geranyl pyrophosphate, (E,E)-farnesyl pyrophosphate and geranylgeranyl pyrophosphate, respectively. Upon transient expression in Nicotiana benthamiana, CoTPS5 localized to cytosol and produced only (E,E)-α-farnesene. However, expression of plastid-targeted CoTPS5 in N. benthamiana resulted in biosynthesis of all three compounds, (E)-β-ocimene, (E,E)-α-farnesene and α-springene. Similarly, transgenic Arabidopsis plants overexpressing plastid-targeted CoTPS5 showed stable and sustainable production of (E)-β-ocimene, (E,E)-α-farnesene and α-springene. Moreover, their production did not affect the growth and development of transgenic Arabidopsis plants. Our results demonstrate that redirecting multi-substrate TPS to a different intracellular compartment could be an effective way to prove in vivo activity of multi-substrate TPSs and thereby allowing for the production of multiple terpenoids simultaneously in plants.
Collapse
Affiliation(s)
- Savitha Dhandapani
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore
| | - Jessica Gambino Tjhang
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore
| | - In-Cheol Jang
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore; Department of Biological Sciences, National University of Singapore, Singapore, 117543, Singapore.
| |
Collapse
|
24
|
Abbas F, Ke Y, Zhou Y, Ashraf U, Li X, Yu Y, Yue Y, Ahmad KW, Yu R, Fan Y. Molecular cloning, characterization and expression analysis of LoTPS2 and LoTPS4 involved in floral scent formation in oriental hybrid Lilium variety 'Siberia'. PHYTOCHEMISTRY 2020; 173:112294. [PMID: 32058861 DOI: 10.1016/j.phytochem.2020.112294] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 02/02/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
Lilies are a commercially significant cut flower worldwide due not only to their elegant shape but also to their appealing scent. Among Lilium varieties, Lilium 'Siberia' is a cultivar that is prominent and highly favored by consumers due to its snowy white color and strong floral scent. Here, two terpene synthase genes (LoTPS2 and LoTPS4) that are responsible for floral scent production in Lilium 'Siberia' were cloned and functionally characterized. Recombinant LoTPS2 specifically catalyzed the formation of (E, E)-α-farnesene from FPP. Recombinant LoTPS4 is a multiproduct enzyme that produces D-limonene and β-myrcene as major volatile compounds and β-phellandrene, (+)-4-carene and 3-carene as minor products from GPP. Furthermore, LoTPS4 generates trans-α-bergamotene as a major product and di-epi-α-cedrene, α-cubebene and (E)-β-farnesene as minor compounds from FPP. Subcellular localization analysis using GFP fusion constructs revealed that LoTPS2 was localized in the cytosol, whereas LoTPS4 was localized in plastids. Real-time PCR analysis showed that LoTPS2 was highly expressed in the petals and sepals of the flower, while LoTPS4 was highly expressed in the filament of the flower. Moreover, mechanical wounding of flowers revealed that LoTPS2 showed a strong response to wounding via a rapid increase in its mRNA transcript level. Our results will assist scientists in exploring the molecular mechanisms of terpene biosynthesis in this species and will provide new insight into the biotechnological modification of the floral bouquet in Lilium.
Collapse
Affiliation(s)
- Farhat Abbas
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Yanguo Ke
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Yiwei Zhou
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Umair Ashraf
- Department of Botany, Division of Science and Technology, University of Education, Lahore, 54770, Punjab, Pakistan
| | - Xinyue Li
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Yunyi Yu
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Yuechong Yue
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Kanwar Waqas Ahmad
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Rangcai Yu
- College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - Yanping Fan
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China; Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
25
|
Ling C, Zheng L, Yu X, Wang H, Wang C, Wu H, Zhang J, Yao P, Tai Y, Yuan Y. Cloning and functional analysis of three aphid alarm pheromone genes from German chamomile (Matricaria chamomilla L.). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 294:110463. [PMID: 32234219 DOI: 10.1016/j.plantsci.2020.110463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/02/2020] [Accepted: 03/04/2020] [Indexed: 06/11/2023]
Abstract
German chamomile (Matricaria chamomilla L.) is one of the most ancient medicinal species in the world and terpenoids from their flowers have important medicinal value. We cloned three sesquiterpene synthase genes, McGDS1, McGDS2 and McGDS3, and performed sequence alignment and phylogenetic analysis. The encoded proteins possess three conserved structural features: an RRxxxxxxxxW motif, an RxR motif, and a DDxxD motif. McGDS1, McGDS2 and McGDS3 were confirmed to be (E)-farnesene synthase, germacrene D synthase, and germacrene A synthase, respectively. Subcellular localization revealed diffuse GFP reporter-gene signals in the cytoplasm and nucleus. qPCR indicated that McGDS1, McGDS2 and McGDS3, were more highly expressed in young flowers than in old flowers and the expression was highly correlated with amounts of the end-product essential oils ((E)-β-farnesene, germacrene D and β-elemene), with coefficients of 0.76, 0.83 and 0.68, respectively. We also established a transformation system for chamomile hairy roots. The overexpression of McGDS1, McGDS2 and McGDS3 resulted in γ-muurolene accumulation in hairy roots. The activity of three aphid alarm pheromones here forms the molecular basis for the study of the biosynthesis and regulation of volatile terpenes. Transformation of chamomile hairy roots provides a simple system in which to study terpene biosynthesis in chamomile.
Collapse
Affiliation(s)
- Chengcheng Ling
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Lujie Zheng
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Xiaorui Yu
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Huanhuan Wang
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Chengxiang Wang
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Haiyan Wu
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Jie Zhang
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Ping Yao
- School of Life Science, Anhui Agricultural University, Hefei, China
| | - Yuling Tai
- School of Life Science, Anhui Agricultural University, Hefei, China.
| | - Yi Yuan
- School of Life Science, Anhui Agricultural University, Hefei, China.
| |
Collapse
|
26
|
Zeng Y, Wang MY, Hunter DC, Matich AJ, McAtee PA, Knäbel M, Hamiaux C, Popowski EA, Jaeger SR, Nieuwenhuizen NJ, Yauk YK, Atkinson RG. Sensory-Directed Genetic and Biochemical Characterization of Volatile Terpene Production in Kiwifruit. PLANT PHYSIOLOGY 2020; 183:51-66. [PMID: 32184346 PMCID: PMC7210626 DOI: 10.1104/pp.20.00186] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/01/2020] [Indexed: 05/12/2023]
Abstract
Terpene volatiles are found in many important fruit crops, but their relationship to flavor is poorly understood. Here, we demonstrate using sensory descriptive and discriminant analysis that 1,8-cineole contributes a key floral/eucalyptus note to the aroma of ripe 'Hort16A' kiwifruit (Actinidia chinensis). Two quantitative trait loci (QTLs) for 1,8-cineole production were identified on linkage groups 27 and 29a in a segregating A. chinensis population, with the QTL on LG29a colocating with a complex cluster of putative terpene synthase (TPS)-encoding genes. Transient expression in Nicotiana benthamiana and analysis of recombinant proteins expressed in Escherichia coli showed four genes in the cluster (AcTPS1a-AcTPS1d) encoded functional TPS enzymes, which produced predominantly sabinene, 1,8-cineole, geraniol, and springene, respectively. The terpene profile produced by AcTPS1b closely resembled the terpenes detected in red-fleshed A chinensis AcTPS1b expression correlated with 1,8-cineole content in developing/ripening fruit and also showed a positive correlation with 1,8-cineole content in the mapping population, indicating the basis for segregation is an expression QTL. Transient overexpression of AcTPS1b in Actinidia eriantha fruit confirmed this gene produced 1,8-cineole in Actinidia Structure-function analysis showed AcTPS1a and AcTPS1b are natural variants at key TPS catalytic site residues previously shown to change enzyme specificity in vitro. Together, our results indicate that AcTPS1b is a key gene for production of the signature flavor terpene 1,8-cineole in ripe kiwifruit. Using a sensory-directed strategy for compound identification provides a rational approach for applying marker-aided selection to improving flavor in kiwifruit as well as other fruits.
Collapse
Affiliation(s)
- Yunliu Zeng
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan 430070, P.R. China
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| | - Mindy Y Wang
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| | - Denise C Hunter
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| | | | - Peter A McAtee
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| | | | - Cyril Hamiaux
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| | | | - Sara R Jaeger
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| | - Niels J Nieuwenhuizen
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| | - Yar-Khing Yauk
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| | - Ross G Atkinson
- The New Zealand Institute for Plant and Food Research Ltd. (PFR), Auckland 1142, New Zealand
| |
Collapse
|
27
|
Nardozza S, Boldingh HL, Kashuba MP, Feil R, Jones D, Thrimawithana AH, Ireland HS, Philippe M, Wohlers MW, McGhie TK, Montefiori M, Lunn JE, Allan AC, Richardson AC. Carbon starvation reduces carbohydrate and anthocyanin accumulation in red-fleshed fruit via trehalose 6-phosphate and MYB27. PLANT, CELL & ENVIRONMENT 2020; 43:819-835. [PMID: 31834629 DOI: 10.1111/pce.13699] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 12/08/2019] [Indexed: 05/14/2023]
Abstract
Kiwifruit (Actinidia spp.) is a recently domesticated fruit crop with several novel-coloured cultivars being developed. Achieving uniform fruit flesh pigmentation in red genotypes is challenging. To investigate the cause of colour variation between fruits, we focused on a red-fleshed Actinidia chinensis var. chinensis genotype. It was hypothesized that carbohydrate supply could be responsible for this variation. Early in fruit development, we imposed high or low (carbon starvation) carbohydrate supplies treatments; carbohydrate import or redistribution was controlled by applying a girdle at the shoot base. Carbon starvation affected fruit development as well as anthocyanin and carbohydrate metabolite concentrations, including the signalling molecule trehalose 6-phosphate. RNA-Seq analysis showed down-regulation of both gene-encoding enzymes in the anthocyanin and carbohydrate biosynthetic pathways. The catalytic trehalose 6-phosphate synthase gene TPS1.1a was down-regulated, whereas putative regulatory TPS7 and TPS11 were strongly up-regulated. Unexpectedly, under carbon starvation MYB10, the anthocyanin pathway regulatory activator was slightly up-regulated, whereas MYB27 was also up-regulated and acts as a repressor. To link these two metabolic pathways, we propose a model where trehalose 6-phosphate and the active repressor MYB27 are involved in sensing the carbon starvation status. This signals the plant to save resources and reduce the production of anthocyanin in fruits.
Collapse
Affiliation(s)
- Simona Nardozza
- New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - Helen L Boldingh
- Sustainable Production, The New Zealand Institute for Plant and Food Research Limited (PFR), Hamilton, New Zealand
| | - M Peggy Kashuba
- Sustainable Production, The New Zealand Institute for Plant and Food Research Limited (PFR), Kerikeri, New Zealand
| | - Regina Feil
- System Regulation, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Dan Jones
- New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - Amali H Thrimawithana
- New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - Hilary S Ireland
- New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - Marine Philippe
- New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - Mark W Wohlers
- New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - Tony K McGhie
- Food Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Palmerston North, New Zealand
| | - Mirco Montefiori
- New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - John E Lunn
- System Regulation, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Andrew C Allan
- New Cultivar Innovation, The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Annette C Richardson
- Sustainable Production, The New Zealand Institute for Plant and Food Research Limited (PFR), Kerikeri, New Zealand
| |
Collapse
|
28
|
Souleyre EJF, Bowen JK, Matich AJ, Tomes S, Chen X, Hunt MB, Wang MY, Ileperuma NR, Richards K, Rowan DD, Chagné D, Atkinson RG. Genetic control of α-farnesene production in apple fruit and its role in fungal pathogenesis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 100:1148-1162. [PMID: 31436867 DOI: 10.1111/tpj.14504] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 07/28/2019] [Accepted: 08/05/2019] [Indexed: 05/05/2023]
Abstract
Terpenes are important compounds in plant trophic interactions. A meta-analysis of GC-MS data from a diverse range of apple (Malus × domestica) genotypes revealed that apple fruit produces a range of terpene volatiles, with the predominant terpene being the acyclic branched sesquiterpene (E,E)-α-farnesene. Four quantitative trait loci (QTLs) for α-farnesene production in ripe fruit were identified in a segregating 'Royal Gala' (RG) × 'Granny Smith' (GS) population with one major QTL on linkage group 10 co-locating with the MdAFS1 (α-farnesene synthase-1) gene. Three of the four QTLs were derived from the GS parent, which was consistent with GC-MS analysis of headspace and solvent-extracted terpenes showing that cold-treated GS apples produced higher levels of (E,E)-α-farnesene than RG. Transgenic RG fruit downregulated for MdAFS1 expression produced significantly lower levels of (E,E)-α-farnesene. To evaluate the role of (E,E)-α-farnesene in fungal pathogenesis, MdAFS1 RNA interference transgenic fruit and RG controls were inoculated with three important apple post-harvest pathogens [Colletotrichum acutatum, Penicillium expansum and Neofabraea alba (synonym Phlyctema vagabunda)]. From results obtained over four seasons, we demonstrate that reduced (E,E)-α-farnesene is associated with decreased disease initiation rates of all three pathogens. In each case, the infection rate was significantly reduced 7 days post-inoculation, although the size of successful lesions was comparable with infections on control fruit. These results indicate that (E,E)-α-farnesene production is likely to be an important factor involved in fungal pathogenesis in apple fruit.
Collapse
Affiliation(s)
- Edwige J F Souleyre
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Joanna K Bowen
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Adam J Matich
- PFR, Private Bag 11600, Palmerston North, 4442, New Zealand
| | - Sumathi Tomes
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Xiuyin Chen
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Martin B Hunt
- PFR, Private Bag 11600, Palmerston North, 4442, New Zealand
| | - Mindy Y Wang
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Nadeesha R Ileperuma
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Kate Richards
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Daryl D Rowan
- PFR, Private Bag 11600, Palmerston North, 4442, New Zealand
| | - David Chagné
- PFR, Private Bag 11600, Palmerston North, 4442, New Zealand
| | - Ross G Atkinson
- The New Zealand Institute for Plant and Food Research Limited (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| |
Collapse
|
29
|
Nawade B, Yahyaa M, Reuveny H, Shaltiel-Harpaz L, Eisenbach O, Faigenboim A, Bar-Yaakov I, Holland D, Ibdah M. Profiling of volatile terpenes from almond (Prunus dulcis) young fruits and characterization of seven terpene synthase genes. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 287:110187. [PMID: 31481200 DOI: 10.1016/j.plantsci.2019.110187] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 07/04/2019] [Accepted: 07/06/2019] [Indexed: 06/10/2023]
Abstract
Almond (Prunus dulcis) is an agricultural and economically important fruit tree from the Rosaceae family used in the food industry. The monoterpenes and sesquiterpenes perform important ecological functions such as insecticidal and antifeedant activities against various insects. The young fruits of the different almond varieties were found to produce considerable amounts of terpene volatiles, including linalool and geraniol. To identify terpene synthases (TPSs) involved in the production of these volatile terpenes, existing genome databases of the Rosaceae were screened for almond genes with significant sequence similarity to other plants TPSs. Bioinformatics analysis led to the identification of seven putative TPSs genes with complete open reading frames. We characterized the enzymes encoded by these seven complementary DNAs: the monoterpene synthases PdTPS1, PdTPS3, PdTPS5, and PdTPS6 belong to the TPS-b clade, which catalyzes the formation of β-phellandrene, geraniol, linalool, and farnesene, respectively. The sesquiterpene synthases PdTPS2 and PdTPS4, which belong to the TPS-a clade mainly catalyze the formation of bergamotene, while another sesquiterpene synthase, PdTPS7, from the TPS-g clade showed nerolidol synthase activity. The qRT-PCR analysis revealed that the various tissues of almond varieties showed differential transcription for all these PdTPSs genes.
Collapse
Affiliation(s)
- Bhagwat Nawade
- Newe Yaar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Mosaab Yahyaa
- Newe Yaar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Haim Reuveny
- Migal Galilee Research Institute, P.O. Box 831, Kiryat Shmona, 11016, Israel
| | - Liora Shaltiel-Harpaz
- Migal Galilee Research Institute, P.O. Box 831, Kiryat Shmona, 11016, Israel; Tel Hai college, Upper Galilee, 12210, Israel
| | - Ori Eisenbach
- Newe Yaar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Adi Faigenboim
- Institute of Plant Science, The Volcani Center, ARO, P.O. Box 6, Bet Dagan, 50250, Israel
| | - Irit Bar-Yaakov
- Newe Yaar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Doron Holland
- Newe Yaar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Mwafaq Ibdah
- Newe Yaar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095, Israel.
| |
Collapse
|
30
|
Ramya M, Park PH, Chuang YC, Kwon OK, An HR, Park PM, Baek YS, Kang BC, Tsai WC, Chen HH. RNA sequencing analysis of Cymbidium goeringii identifies floral scent biosynthesis related genes. BMC PLANT BIOLOGY 2019; 19:337. [PMID: 31375064 PMCID: PMC6679452 DOI: 10.1186/s12870-019-1940-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 07/17/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND Cymbidium goeringii belongs to the Orchidaceae, which is one of the most abundant angiosperm families. Cymbidium goeringii consist with high economic value and characteristics include fragrance and multiple flower colors. Floral scent is one of the important strategies for ensuring fertilization. However, limited genetic data is available in this non-model plant, and little known about the molecular mechanism responsible for floral scent in this orchid. Transcriptome and expression profiling data are needed to identify genes and better understand the biological mechanisms of floral scents in this species. Present transcriptomic data provides basic information on the genes and enzymes related to and pathways involved in flower secondary metabolism in this plant. RESULTS In this study, RNA sequencing analyses were performed to identify changes in gene expression and biological pathways related scent metabolism. Three cDNA libraries were obtained from three developmental floral stages: closed bud, half flowering stage and full flowering stage. Using Illumina technique 159,616,374 clean reads were obtained and were assembled into 85,868 final unigenes (average length 1194 nt), 33.85% of which were annotated in the NCBI non redundant protein database. Among this unigenes 36,082 were assigned to gene ontology and 23,164 were combined with COG groups. Total 33,417 unigenes were assigned in 127 pathways according to the Kyoto Encyclopedia of Genes and Genomes pathway database. According these transcriptomic data we identified number of candidates genes which differentially expressed in different developmental stages of flower related to fragrance biosynthesis. In q-RT-PCR most of the fragrance related genes highly expressed in half flowering stage. CONCLUSIONS RNA-seq and DEG data provided comprehensive gene expression information at the transcriptional level that could be facilitate the molecular mechanisms of floral biosynthesis pathways in three developmental phase's flowers in Cymbidium goeringii, moreover providing useful information for further analysis on C. goeringii, and other plants of genus Cymbidium.
Collapse
Affiliation(s)
- Mummadireddy Ramya
- Floriculture Research Division, National Institute of Horticultural & Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju, 55365 South Korea
| | - Pue Hee Park
- Floriculture Research Division, National Institute of Horticultural & Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju, 55365 South Korea
- Department of Life Sciences, National Cheng Kung University (NCKU), Tainan, 701 Taiwan
- Department of Horticultural Science and Biotechnology, Seoul National University (SNU), Seoul, 08826 South Korea
| | - Yu-Chen Chuang
- Department of Life Sciences, National Cheng Kung University (NCKU), Tainan, 701 Taiwan
| | - Oh Keun Kwon
- Floriculture Research Division, National Institute of Horticultural & Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju, 55365 South Korea
| | - Hye Ryun An
- Floriculture Research Division, National Institute of Horticultural & Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju, 55365 South Korea
| | - Pil Man Park
- Floriculture Research Division, National Institute of Horticultural & Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju, 55365 South Korea
| | - Yun Su Baek
- Floriculture Research Division, National Institute of Horticultural & Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju, 55365 South Korea
| | - Byoung-Chorl Kang
- Department of Horticultural Science and Biotechnology, Seoul National University (SNU), Seoul, 08826 South Korea
| | - Wen-Chieh Tsai
- Department of Life Sciences, National Cheng Kung University (NCKU), Tainan, 701 Taiwan
- Institute of Tropical Plant Sciences, National Cheng Kung University, Tainan, 701 Taiwan
- Orchid Research and Development Center, National Cheng Kung University, Tainan, 701 Taiwan
| | - Hong-Hwa Chen
- Department of Life Sciences, National Cheng Kung University (NCKU), Tainan, 701 Taiwan
- Institute of Tropical Plant Sciences, National Cheng Kung University, Tainan, 701 Taiwan
| |
Collapse
|
31
|
Tian JP, Ma ZY, Zhao KG, Zhang J, Xiang L, Chen LQ. Transcriptomic and proteomic approaches to explore the differences in monoterpene and benzenoid biosynthesis between scented and unscented genotypes of wintersweet. PHYSIOLOGIA PLANTARUM 2019; 166:478-493. [PMID: 30216458 DOI: 10.1111/ppl.12828] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/15/2018] [Accepted: 09/03/2018] [Indexed: 05/24/2023]
Abstract
Wintersweet (Chimonanthus praecox L.) is an important ornamental plant in China with a pleasant floral scent. To explore the potential mechanisms underlying differences in the fragrances among genotypes of this plant, we analyzed floral volatile organic compounds (VOCs) from two different genotypes: SW001, which has little to no fragrance, and the scented genotype H29. The major VOCs in H29 were linalool, trans-β-ocimene, benzyl acetate, methyl salicylate, benzyl alcohol (BAlc) and methyl benzoate. The most important aroma-active compound in H29, linalool, was emitted at a low concentration in SW001, which had markedly higher levels of trans-β-ocimene than H29. Next, to investigate scent biosynthesis, we analyzed the transcriptome and proteome of fully open flowers of the two genotypes. A total of 14 443 differentially expressed unigenes and 196 differentially expressed proteins were identified. Further analyses indicated that 56 differentially expressed genes involved in the terpenoid and benzenoid biosynthesis pathways might play critical roles in regulating floral fragrance difference. Disequilibrium expression of four terpene synthase genes resulted in diverse emission of linalool and trans-β-ocimene in both genotypes. In addition, the expressions of two CpMYC2 transcription factors were both upregulated in H29, implying that they may regulate linalool production. Notably, 16 of 20 genes in the benzenoid biosynthesis pathway were downregulated, corresponding to the relatively low level of benzenoid production in SW001. The lack of benzyl acetate might indicate that SW001 may lack substrate BAlc or functional acetyl-CoA:benzylalcohol acetyltransferase.
Collapse
Affiliation(s)
- Jing-Pu Tian
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhi-Yao Ma
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Kai-Ge Zhao
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jie Zhang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lin Xiang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Long-Qing Chen
- Southwest Research Center for Engineering Technology of Landscape Architecture (State Forestry Administration), Southwest Forestry University, Kunming, 650224, China
| |
Collapse
|
32
|
Yue Y, Liu J, Shi T, Chen M, Li Y, Du J, Jiang H, Yang X, Hu H, Wang L. Integrating Transcriptomic and GC-MS Metabolomic Analysis to Characterize Color and Aroma Formation during Tepal Development in Lycoris longituba. PLANTS 2019; 8:plants8030053. [PMID: 30823447 PMCID: PMC6473938 DOI: 10.3390/plants8030053] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 02/22/2019] [Accepted: 02/25/2019] [Indexed: 01/18/2023]
Abstract
Lycoris longituba, belonging to the Amaryllidaceae family, is a perennial bulb bearing flowers with diverse colors and fragrance. Selection of cultivars with excellent colored and scented flowers has always been the breeding aim for ornamental plants. However, the molecular mechanisms underlying color fading and aroma production during flower expansion in L. longituba remain unclear. Therefore, to systematically investigate these important biological phenomena, the tepals of L. longituba from different developmental stages were used to screen and analyze the metabolic components and relevant genes. Utilizing the Illumina platform, a total of 144,922 unigenes were obtained from the RNA-Seq libraries. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis indicated that the phenylpropanoid biosynthesis and flavonoid biosynthesis pathways might play important roles during color and aroma changes. Metabolomic analysis identified 29 volatile organic components (VOCs) from different developmental stages of L. longituba tepals, and orthogonal partial least-squares discriminate analysis (OPLS-DA) revealed that trans-β-ocimene—a terpene—was the most important aroma compound. Meanwhile, we found the content of anthocyanin was significantly reduced during the tepal color fading process. Then, we identified two dihydroflavonol-4-reductase (DFR) and three terpene synthase (TPS) genes, for which expression changes coincided with the production patterns of anthocyanins and trans-β-ocimene, respectively. Furthermore, a number of MYB and bHLH transcription factors (TFs) which might be involved in color- and aroma-formation were also identified in L. longituba tepal transcriptomes. Taken together, this is the first comprehensive report of the color and fragrance in tepals of L. longituba and these results could be helpful in understanding these characteristics and their regulation networks.
Collapse
Affiliation(s)
- Yuanzheng Yue
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
| | - Jiawei Liu
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
| | - Tingting Shi
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
| | - Min Chen
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
| | - Ya Li
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
| | - Juhua Du
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
| | - Haiyan Jiang
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
| | - Xiulian Yang
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
| | - Huirong Hu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China.
| | - Lianggui Wang
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China.
| |
Collapse
|
33
|
Abbas F, Ke Y, Yu R, Fan Y. Functional characterization and expression analysis of two terpene synthases involved in floral scent formation in Lilium 'Siberia'. PLANTA 2019; 249:71-93. [PMID: 30218384 DOI: 10.1007/s00425-018-3006-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 09/06/2018] [Indexed: 05/22/2023]
Abstract
Floral scent formation in Lilium 'Siberia' is mainly due to monoterpene presence in the floral profile. LoTPS1 and LoTPS3 are responsible for the formation of (±)-linalool and β-ocimene in Lilium 'Siberia'. Lilium 'Siberia' is a perennial herbaceous plant belonging to Liliaceae family, cultivated both as a cut flower and garden plant. The snowy white flower emits a pleasant aroma which is mainly caused by monoterpenes present in the floral volatile profile. Previously terpene synthase (TPS) genes have been isolated and characterized from various plant species but less have been identified from Liliaceae family. Here, two terpene synthase genes (LoTPS1 and LoTPS3), which are highly expressed in sepals and petals of Lilium 'Siberia' flower were functionally characterized recombinant LoTPS1 specifically catalyzes the formation of (Z)-β-ocimene and (±)-linalool as its main volatile compounds from geranyl pyrophosphate (GPP), whereas LoTPS3 is a promiscuous monoterpene synthase which utilizes both GPP and farnesyl pyrophosphate (FPP) as a substrate to generate (±)-linalool and cis-nerolidol, respectively. Transcript levels of both genes were prominent in flowering parts, especially in sepals and petals which are the main source of floral scent production. The gas chromatography-mass spectrometry (GC-MS) and quantitative real-time PCR analysis revealed that the compounds were emitted throughout the day, prominently during the daytime and lower levels at night following a strong circadian rhythm in their emission pattern. Regarding mechanical wounding, both genes showed considerable involvement in floral defense by inducing the emission of (Z)-β-ocimene and (±)-linalool, elevating the transcript accumulation of LoTPS1 and LoTPS3. Furthermore, the subcellular localization experiment revealed that LoTPS1 was localized in plastids, whilst LoTPS3 in mitochondria. Our findings on these two TPSs characterized from Lilium 'Siberia' provide new insights into molecular mechanisms of terpene biosynthesis in this species and also provide an opportunity for biotechnological modification of floral scent profile of Lilium.
Collapse
Affiliation(s)
- Farhat Abbas
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
- Department of Horticulture, College of Agriculture, University of Sargodha, Punjab, Pakistan
| | - Yanguo Ke
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Rangcai Yu
- College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - Yanping Fan
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China.
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
34
|
Yu N, Yang JC, Yin GT, Li RS, Zou WT. Transcriptome Analysis of Oleoresin-Producing Tree Sindora Glabra and Characterization of Sesquiterpene Synthases. FRONTIERS IN PLANT SCIENCE 2018; 9:1619. [PMID: 30515178 PMCID: PMC6256070 DOI: 10.3389/fpls.2018.01619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 10/18/2018] [Indexed: 06/09/2023]
Abstract
Terpenes serve important physiological and ecological functions in plants. Sindora glabra trees accumulate copious amounts of sesquiterpene-rich oleoresin in the stem. A transcriptome approach was used to determine the unique terpene biosynthesis pathway and to explore the different regulatory mechanisms responsible for the variation of terpene content among individuals. Analysis of de novo-assembled contigs revealed a complete set of genes for terpene biosynthesis. A total of 23,261 differentially expressed unigenes (DEGs) were discovered between high and low oil-yielding plants. DEG enrichment analysis suggested that the terpene biosynthesis process and the plant hormone signal transduction pathway may exert a major role in determining terpene variation in S. glabra. The expression patterns of candidate genes were further verified by quantitative RT-PCR experiments. Key genes involved in the terpene biosynthesis pathway were predominantly expressed in phloem and root tissues. Phylogenetic analysis and subcellular localization implied that S. glabra terpene synthases may evolve from a common ancestor. Furthermore, two sesquiterpene synthase genes, SgSTPS1 and SgSTPS2, were functionally characterized. SgSTPS1 mainly generated β-caryophyllene from farnesyl pyrophosphate. SgSTPS2 is a versatile enzyme that catalyzes the formation of 12 sequiterpenes from farnesyl pyrophosphate and synthesis of three monoterpenes using geranyl pyrophosphate. Together, these results provide large reservoir for elucidating the molecular mechanism of terpene biosynthesis and for exploring the ecological function of sesquiterpenes in S. glabra.
Collapse
|
35
|
Purahong W, Orrù L, Donati I, Perpetuini G, Cellini A, Lamontanara A, Michelotti V, Tacconi G, Spinelli F. Plant Microbiome and Its Link to Plant Health: Host Species, Organs and Pseudomonas syringae pv. actinidiae Infection Shaping Bacterial Phyllosphere Communities of Kiwifruit Plants. FRONTIERS IN PLANT SCIENCE 2018; 9:1563. [PMID: 30464766 PMCID: PMC6234494 DOI: 10.3389/fpls.2018.01563] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 10/05/2018] [Indexed: 05/20/2023]
Abstract
Pseudomonas syringae pv. actinidiae (Psa) is the causal agent of the bacterial canker, the most devastating disease of kiwifruit vines. Before entering the host tissues, this pathogen has an epiphytic growth phase on kiwifruit flowers and leaves, thus the ecological interactions within epiphytic bacterial community may greatly influence the onset of the infection process. The bacterial community associated to the two most important cultivated kiwifruit species, Actinidia chinensis and Actinidia deliciosa, was described both on flowers and leaves using Illumina massive parallel sequencing of the V3 and V4 variable regions of the 16S rRNA gene. In addition, the effect of plant infection by Psa on the epiphytic bacterial community structure and biodiversity was investigated. Psa infection affected the phyllosphere microbiome structures in both species, however, its impact was more pronounced on A. deliciosa leaves, where a drastic drop in microbial biodiversity was observed. Furthermore, we also showed that Psa was always present in syndemic association with Pseudomonas syringae pv. syringae and Pseudomonas viridiflava, two other kiwifruit pathogens, suggesting the establishment of a pathogenic consortium leading to a higher pathogenesis capacity. Finally, the analyses of the dynamics of bacterial populations provided useful information for the screening and selection of potential biocontrol agents against Psa.
Collapse
Affiliation(s)
- Witoon Purahong
- Department of Soil Ecology, Helmholtz Center for Environmental Research - UFZ, Halle, Germany
| | - Luigi Orrù
- CREA Research Centre for Genomics and Bioinformatics – Fiorenzuola d’Arda, Italy
| | - Irene Donati
- Department of Agricultural and Food Sciences, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
| | - Giorgia Perpetuini
- Department of Agricultural and Food Sciences, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
| | - Antonio Cellini
- Department of Agricultural and Food Sciences, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
| | | | - Vania Michelotti
- CREA Research Centre for Genomics and Bioinformatics – Fiorenzuola d’Arda, Italy
| | - Gianni Tacconi
- CREA Research Centre for Genomics and Bioinformatics – Fiorenzuola d’Arda, Italy
| | - Francesco Spinelli
- Department of Agricultural and Food Sciences, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
| |
Collapse
|
36
|
Lamara M, Parent GJ, Giguère I, Beaulieu J, Bousquet J, MacKay JJ. Association genetics of acetophenone defence against spruce budworm in mature white spruce. BMC PLANT BIOLOGY 2018; 18:231. [PMID: 30309315 PMCID: PMC6182838 DOI: 10.1186/s12870-018-1434-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 09/23/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Outbreaks of spruce budworm (SBW, Choristoneura fumiferana Clem.) cause major recurrent damage in boreal conifers such as white spruce (Picea glauca [Moench] Voss) and large losses of forest biomass in North America. Although defensive phenolic compounds have recently been linked to chemical resistance against SBW, their genetic basis remains poorly understood in forest trees, especially in conifers. Here, we used diverse association genetics approaches to discover genes and their variants that may control the accumulation of acetophenones, and dissect the genetic architecture of these defence compounds against SBW in white spruce mature trees. RESULTS Out of 4747 single nucleotide polymorphisms (SNPs) from 2312 genes genotyped in a population of 211 unrelated individuals, genetic association analyses identified 35 SNPs in 33 different genes that were significantly associated with the defence traits by using single-locus, multi-locus and multi-trait approaches. The multi-locus approach was particularly effective at detecting SNP-trait associations that explained a large fraction of the phenotypic variance (from 20 to 43%). Significant genes were regulatory including the NAC transcription factor, or they were involved in carbohydrate metabolism, falling into the binding, catalytic or transporter activity functional classes. Most of them were highly expressed in foliage. Weak positive phenotypic correlations were observed between defence and growth traits, indicating little or no evidence of defence-growth trade-offs. CONCLUSIONS This study provides new insights on the genetic architecture of tree defence traits, contributing to our understanding of the physiology of resistance mechanisms to biotic factors and providing a basis for the genetic improvement of the constitutive defence of white spruce against SBW.
Collapse
Affiliation(s)
- Mebarek Lamara
- Forest Research Centre and Institute for Systems and Integrative Biology, Département des sciences du bois et de la forêt, Université Laval, Qc, Québec, G1V 0A6 Canada
- Canada Research Chair in Forest Genomics, Université Laval, Qc, Québec, G1V 0A6 Canada
| | | | - Isabelle Giguère
- Forest Research Centre and Institute for Systems and Integrative Biology, Département des sciences du bois et de la forêt, Université Laval, Qc, Québec, G1V 0A6 Canada
| | - Jean Beaulieu
- Forest Research Centre and Institute for Systems and Integrative Biology, Département des sciences du bois et de la forêt, Université Laval, Qc, Québec, G1V 0A6 Canada
- Canada Research Chair in Forest Genomics, Université Laval, Qc, Québec, G1V 0A6 Canada
| | - Jean Bousquet
- Forest Research Centre and Institute for Systems and Integrative Biology, Département des sciences du bois et de la forêt, Université Laval, Qc, Québec, G1V 0A6 Canada
- Canada Research Chair in Forest Genomics, Université Laval, Qc, Québec, G1V 0A6 Canada
| | - John J. MacKay
- Forest Research Centre and Institute for Systems and Integrative Biology, Département des sciences du bois et de la forêt, Université Laval, Qc, Québec, G1V 0A6 Canada
- Department of Plant Sciences, University of Oxford, Oxford, OX1 3RB UK
- Canada Research Chair in Forest Genomics, Université Laval, Qc, Québec, G1V 0A6 Canada
| |
Collapse
|
37
|
Alemdar S, König JC, Seidel K, Kirschning A, Scheper T, Beutel S. Substrate specificity of α-humulene synthase from Zingiber zerumbet
Smith and determination of kinetic constants by a spectrophotometric assay. Eng Life Sci 2018; 18:654-658. [DOI: 10.1002/elsc.201800019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/10/2018] [Accepted: 05/24/2018] [Indexed: 11/08/2022] Open
Affiliation(s)
- Semra Alemdar
- Institute of Technical Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Jan Christoph König
- Institute of Technical Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Katja Seidel
- Institute of Organic Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Thomas Scheper
- Institute of Technical Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Sascha Beutel
- Institute of Technical Chemistry; Leibniz Universität Hannover; Hannover Germany
| |
Collapse
|
38
|
Gao F, Liu B, Li M, Gao X, Fang Q, Liu C, Ding H, Wang L, Gao X. Identification and characterization of terpene synthase genes accounting for volatile terpene emissions in flowers of Freesia x hybrida. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:4249-4265. [PMID: 29901784 PMCID: PMC6093421 DOI: 10.1093/jxb/ery224] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/06/2017] [Indexed: 05/19/2023]
Abstract
The development of flower scents was a crucial event in biological evolution, providing olfactory signals by which plants can attract pollinators. In this study, bioinformatics, metabolomics, and biochemical and molecular methodologies were integrated to investigate the candidate genes involved in the biosynthesis of volatile components in two cultivars of Freesia x hybrida, Red River® and Ambiance, which release different categories of compounds. We found that terpene synthase (TPS) genes were the pivotal genes determining spatiotemporal release of volatile compounds in both cultivars. Eight FhTPS genes were isolated and six were found to be functional: FhTPS1 was a single-product enzyme catalyzing the formation of linalool, whereas the other four FhTPS proteins were multi-product enzymes, among which FhTPS4, FhTPS6, and FhTPS7 could recognize geranyl diphosphate and farnesyl diphosphate simultaneously. The FhTPS enzymatic products closely matched the volatile terpenes emitted from flowers, and significant correlations were found between release of volatile terpenes and FhTPS gene expression. Graphical models based on these results are proposed that summarize the biosynthesis of Freesia floral volatile terpenes. The characterization of FhTPS genes paves the way to decipher their roles in the speciation and fitness of Freesia, and this knowledge could also be used to introduce or enhance scent in other plants.
Collapse
Affiliation(s)
- Fengzhan Gao
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Baofeng Liu
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Min Li
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Xiaoyan Gao
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Qiang Fang
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Chang Liu
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Hui Ding
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Li Wang
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
- Correspondence: or
| | - Xiang Gao
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
- Correspondence: or
| |
Collapse
|
39
|
Identification of Floral Volatiles and Pollinator Responses in Kiwifruit Cultivars, Actinidia chinensis var. chinensis. J Chem Ecol 2018; 44:406-415. [PMID: 29488039 DOI: 10.1007/s10886-018-0936-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 02/06/2018] [Accepted: 02/14/2018] [Indexed: 10/17/2022]
Abstract
Volatiles emitted from unpollinated in situ flowers were collected from two male cultivars, 'M33', 'M91', and one female cultivar 'Zesy002' (Gold3) of kiwifruit (Actinidia chinensis var. chinensis). The samples were found to contain 48 compounds across the three cultivars with terpenes and straight chain alkenes dominating the headspace. Electrophysiological responses of honey bees (Apis mellifera) and bumble bees (Bombus terrestris) to the headspace of the kiwifruit flowers were recorded. Honey bees consistently responded to 11 floral volatiles from Gold3 pistillate flowers while bumble bees consistently responded to only five compounds from the pistillate flowers. Nonanal, 2-phenylethanol, 4-oxoisophorone and (3E,6E)-α-farnesene from pistillate flowers elicited responses from both bee species. Overall, honey bees were more sensitive to the straight chain hydrocarbons of the kiwifruit flowers than the bumble bees, which represented one of the main differences between the responses of the two bee species. The floral volatiles from staminate flowers of the male cultivars 'M33' and 'M91' varied greatly from those of the pistillate flowers of the female cultivar Gold3, with most of the bee active compounds significantly different from those in the Gold3 flower headspace. The total floral emissions of 'M33' flowers were significantly less than those of the Gold3 flowers, while the total floral emissions of the 'M91' flowers were significantly greater than those of the Gold3 flowers.
Collapse
|
40
|
Liu J, Sui Y, Chen H, Liu Y, Liu Y. Proteomic Analysis of Kiwifruit in Response to the Postharvest Pathogen, Botrytis cinerea. FRONTIERS IN PLANT SCIENCE 2018; 9:158. [PMID: 29497428 PMCID: PMC5818428 DOI: 10.3389/fpls.2018.00158] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 01/29/2018] [Indexed: 05/29/2023]
Abstract
Gray mold, caused by the fungus Botrytis cinerea, is the most significant postharvest disease of kiwifruit. In the present study, iTRAQ with LC-ESI-MS/MS was used to identify the kiwifruit proteins associated with the response to B. cinerea. A total of 2,487 proteins in kiwifruit were identified. Among them, 292 represented differentially accumulated proteins (DAPs), with 196 DAPs having increased, and 96 DAPs having decreased in accumulation in B. cinerea-inoculated vs. water-inoculated, control kiwifruits. DAPs were associated with penetration site reorganization, cell wall degradation, MAPK cascades, ROS signaling, and PR proteins. In order to examine the corresponding transcriptional levels of the DAPs, RT-qPCR was conducted on a subset of 9 DAPs. In addition, virus-induced gene silencing was used to examine the role of myosin 10 in kiwifruit, a gene modulating host penetration resistance to fungal infection, in response to B. cinerea infection. The present study provides new insight on the understanding of the interaction between kiwifruit and B. cinerea.
Collapse
Affiliation(s)
- Jia Liu
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Centre of Special Plant Industry in Chongqing, College of Forestry and Life Science, Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, China
| | - Yuan Sui
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Centre of Special Plant Industry in Chongqing, College of Forestry and Life Science, Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, China
| | - Huizhen Chen
- College of Food Science and Engineering, Hefei University of Technology, Hefei, China
- College of Biology Science and Engineering, Hebei University of Economics and Business, Shijiazhuang, China
| | - Yiqing Liu
- Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Centre of Special Plant Industry in Chongqing, College of Forestry and Life Science, Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, China
| | - Yongsheng Liu
- College of Food Science and Engineering, Hefei University of Technology, Hefei, China
| |
Collapse
|
41
|
Genome-Wide Identification and Comparative Analysis of the 3-Hydroxy-3-methylglutaryl Coenzyme A Reductase (HMGR) Gene Family in Gossypium. Molecules 2018; 23:molecules23020193. [PMID: 29364830 PMCID: PMC6017885 DOI: 10.3390/molecules23020193] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/19/2018] [Accepted: 01/21/2018] [Indexed: 11/25/2022] Open
Abstract
Terpenes are the largest and most diverse class of secondary metabolites in plants and play a very important role in plant adaptation to environment. 3-Hydroxy-3-methylglutaryl coenzyme A reductase (HMGR) is a rate-limiting enzyme in the process of terpene biosynthesis in the cytosol. Previous study found the HMGR genes underwent gene expansion in Gossypium raimondii, but the characteristics and evolution of the HMGR gene family in Gossypium genus are unclear. In this study, genome-wide identification and comparative study of HMGR gene family were carried out in three Gossypium species with genome sequences, i.e., G. raimondii, Gossypium arboreum, and Gossypium hirsutum. In total, nine, nine and 18 HMGR genes were identified in G. raimondii, G. arboreum, and G. hirsutum, respectively. The results indicated that the HMGR genes underwent gene expansion and a unique gene cluster containing four HMGR genes was found in all the three Gossypium species. The phylogenetic analysis suggested that the expansion of HMGR genes had occurred in their common ancestor. There was a pseudogene that had a 10-bp deletion resulting in a frameshift mutation and could not be translated into functional proteins in G. arboreum and the A-subgenome of G. hirsutum. The expression profiles of the two pseudogenes showed that they had tissue-specific expression. Additionally, the expression pattern of the pseudogene in the A-subgenome of G. hirsutum was similar to its paralogous gene in the D-subgenome of G. hirsutum. Our results provide useful information for understanding cytosolic terpene biosynthesis in Gossypium species.
Collapse
|
42
|
Abd El-Gawad AM, El-Amier YA, Bonanomi G. Allelopathic Activity and Chemical Composition of Rhynchosia minima (L.) DC. Essential Oil from Egypt. Chem Biodivers 2017; 15. [PMID: 29064622 DOI: 10.1002/cbdv.201700438] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 10/19/2017] [Indexed: 11/09/2022]
Abstract
Aromatic plants attract the attention of many researchers worldwide due to their worthy applications in agriculture, human prosperity, and the environment. Essential oil (EO) could be exploited as effective alternatives to synthetic compounds as it has several biological activities including allelopathy. The EO from the aerial parts of Rhynchosia minima was extracted by hydrodistillation and investigated by gas chromatography/mass spectrometry (GC/MS). Different concentrations (50, 100, 150 and 200 μL L-1 ) of the EO were prepared for investigation of their allelopathic potential on two weeds; Dactyloctenium aegyptium and Rumex dentatus. Twenty-eight compounds, mainly sesquiterpenes (69.13%) were determined. The major compounds are α-eudesmol, 2-allyl-5-tert-butylhydroquinone, caryophyllene oxide, trans-caryophyllene, and τ-cadinol. The EO from the R. minima showed a significant inhibition of D. aegyptium and R. dentatus germination, while the seedling growth was stimulated. Therefore, it is not recommended to treat these noxious weeds with the EO of R. minima before the germination. In contrast, the apparent stimulatory effect on the seedling growth offers further studies to use the EO of R. minima to enhance the fitness of different economic crops. However, characterization of green bio-herbicides such as EO (allelochemicals) from wild plants raises a new opportunity for the incorporation of new technology of bio-control against the noxious weeds.
Collapse
Affiliation(s)
- Ahmed M Abd El-Gawad
- Botany Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - Yasser A El-Amier
- Botany Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - Giuliano Bonanomi
- Dipartimento di Agraria, University of Naples Federico II, Portici,80055, Naples, Italy
| |
Collapse
|
43
|
Abbas F, Ke Y, Yu R, Yue Y, Amanullah S, Jahangir MM, Fan Y. Volatile terpenoids: multiple functions, biosynthesis, modulation and manipulation by genetic engineering. PLANTA 2017; 246:803-816. [PMID: 28803364 DOI: 10.1007/s00425-017-2749-x] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 07/22/2017] [Indexed: 05/18/2023]
Abstract
Terpenoids play several physiological and ecological functions in plant life through direct and indirect plant defenses and also in human society because of their enormous applications in the pharmaceutical, food and cosmetics industries. Through the aid of genetic engineering its role can by magnified to broad spectrum by improving genetic ability of crop plants, enhancing the aroma quality of fruits and flowers and the production of pharmaceutical terpenoids contents in medicinal plants. Terpenoids are structurally diverse and the most abundant plant secondary metabolites, playing an important role in plant life through direct and indirect plant defenses, by attracting pollinators and through different interactions between the plants and their environment. Terpenoids are also significant because of their enormous applications in the pharmaceutical, food and cosmetics industries. Due to their broad distribution and functional versatility, efforts are being made to decode the biosynthetic pathways and comprehend the regulatory mechanisms of terpenoids. This review summarizes the recent advances in biosynthetic pathways, including the spatiotemporal, transcriptional and post-transcriptional regulatory mechanisms. Moreover, we discuss the multiple functions of the terpene synthase genes (TPS), their interaction with the surrounding environment and the use of genetic engineering for terpenoid production in model plants. Here, we also provide an overview of the significance of terpenoid metabolic engineering in crop protection, plant reproduction and plant metabolic engineering approaches for pharmaceutical terpenoids production and future scenarios in agriculture, which call for sustainable production platforms by improving different plant traits.
Collapse
Affiliation(s)
- Farhat Abbas
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Yanguo Ke
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Rangcai Yu
- College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - Yuechong Yue
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Sikandar Amanullah
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, Heilongjiang, China
| | | | - Yanping Fan
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China.
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
44
|
Twidle AM, Suckling DM, Seal AG, Fedrizzi B, Pilkington LI, Barker D. Identification of in situ flower volatiles from kiwifruit (Actinidia chinensis var. deliciosa) cultivars and their male pollenisers in a New Zealand orchard. PHYTOCHEMISTRY 2017; 141:61-69. [PMID: 28558268 DOI: 10.1016/j.phytochem.2017.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/22/2017] [Accepted: 05/23/2017] [Indexed: 06/07/2023]
Abstract
In situ flower volatiles from six kiwifruit cultivars (Actinidia chinensis var. deliciosa); 'Hayward', 'Chieftain', 'M56', 'Zes007' (Green11), 'M36', and 'M43' were collected by dynamic headspace sampling. Forty-five compounds were detected in the headspace of the flowers, with straight chain hydrocarbons and terpenes accounting for >98% of the volatiles emitted quantitatively across the six cultivars. Of these hydrocarbons, (3Z,6Z,9Z)-heptadecatriene is reported for the first time from a floral source while (8Z)-hexadecene and (9Z)-nonadecene are reported for the first time from kiwifruit flowers. All three hydrocarbons were verified by synthesis. Quantitative comparison of the six honey bee perceived compounds from the headspace of the cultivars showed that the males 'M36' and 'M43' closely matched the female cultivar Green11 that they are used to pollinate. Males 'M56' and 'Chieftain' were not as closely matched to the female cultivar 'Hayward' that they are used to pollinate. The male 'M56' in particular differed significantly from the female 'Hayward' in four of the six honey bee perceived compounds.
Collapse
Affiliation(s)
- Andrew M Twidle
- The New Zealand Institute for Plant & Food Research Limited, Private Bag 4704, Christchurch Mail Centre, Christchurch, 8140, New Zealand; School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand.
| | - David M Suckling
- The New Zealand Institute for Plant & Food Research Limited, Private Bag 4704, Christchurch Mail Centre, Christchurch, 8140, New Zealand; School of Biological Sciences, University of Auckland, Auckland, 1010, New Zealand
| | - Alan G Seal
- The New Zealand Institute for Plant & Food Research Limited, 412 No. 1 Road, RD2, Te Puke, 3182, New Zealand
| | - Bruno Fedrizzi
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Lisa I Pilkington
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - David Barker
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| |
Collapse
|
45
|
Yu Y, Bai J, Chen C, Plotto A, Yu Q, Baldwin EA, Gmitter FG. Identification of QTLs controlling aroma volatiles using a 'Fortune' x 'Murcott' (Citrus reticulata) population. BMC Genomics 2017; 18:646. [PMID: 28830354 PMCID: PMC5568196 DOI: 10.1186/s12864-017-4043-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 08/09/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Flavor is an important attribute of mandarin (Citrus reticulata Blanco), but flavor improvement via conventional breeding is very challenging largely due to the complexity of the flavor components and traits. Many aroma associated volatiles of citrus fruit have been identified, which are directly related to flavor, but knowledge of genetic linkages and relevant genes for these volatiles, along with applicable markers potentially for expeditious and economical marker-assisted selection (MAS), is very limited. The objective of this project was to identify single nucleotide polymorphism (SNP) markers associated with these volatile traits. RESULT Aroma volatiles were investigated in two mandarin parents ('Fortune' and 'Murcott') and their 116 F1 progeny using gas chromatography mass spectrometry in 2012 and 2013. A total of 148 volatiles were detected, including one acid, 12 alcohols, 20 aldehydes, 14 esters, one furan, three aromatic hydrocarbons, 16 ketones, one phenol, 27 sesquiterpenes, 15 monoterpenes, and 38 unknowns. A total of 206 quantitative trait loci (QTLs) were identified for 94 volatile compounds using genotyping data generated from a 1536-SNP Illumina GoldenGate assay. In detail, 25 of the QTLs were consistent over more than two harvest times. Forty-one QTLs were identified for 17 aroma active compounds that included 18 sesquiterpenes and were mapped onto four genomic regions. Fifty QTLs were for 14 monoterpenes and mapped onto five genomic regions. Candidate genes for some QTLs were also identified. A QTL interval for monoterpenes and sesquiterpenes on linkage group 2 contained four genes: geranyl diphosphate synthase 1, terpene synthase 3, terpene synthase 4, and terpene synthase 14. CONCLUSIONS Some fruit aroma QTLs were identified and the candidate genes in the terpenoid biosynthetic pathway were found within the QTL intervals. These QTLs could lead to an efficient and feasible MAS approach to mandarin flavor improvement.
Collapse
Affiliation(s)
- Yuan Yu
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL, 33850, USA
| | - Jinhe Bai
- Horticultural Research Laboratory, ARS, USDA, Fort Pierce, FL, 34945, USA
| | - Chunxian Chen
- Southeastern Fruit and Tree Nut Research Laboratory, ARS, USDA, Byron, GA, 31008, USA
| | - Anne Plotto
- Horticultural Research Laboratory, ARS, USDA, Fort Pierce, FL, 34945, USA
| | - Qibin Yu
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL, 33850, USA
| | | | - Frederick G Gmitter
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL, 33850, USA.
| |
Collapse
|
46
|
Zhang L, Li H, Gao L, Qi Y, Fu W, Li X, Zhou X, Gao Q, Gao Z, Jia H. Acyl-CoA oxidase 1 is involved in γ-decalactone release from peach (Prunus persica) fruit. PLANT CELL REPORTS 2017; 36:829-842. [PMID: 28238071 DOI: 10.1007/s00299-017-2113-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 02/01/2017] [Indexed: 06/06/2023]
Abstract
γ-Decalactone accumulation in peach mesocarp was highly correlated with ACX enzyme activity and natural PpACX1 content. Adding the purified recombinant PpACX1 induced γ-decalactone biosynthesis in cultured mesocarp discs in vitro. Previous gene expression studies have implied that acyl coenzyme A oxidase (ACX) is related to lactones synthesis, the characteristic aroma compounds of peach. Here, we analysed the correlation between γ-decalactone content and ACX enzyme activity in mesocarp of five different types of fully ripe peach varieties. Furthermore, 'Hu Jing Mi Lu' ('HJ') and 'Feng Hua Yu Lu' ('YL'), which have strong aroma among them, at four ripening stages were selected to study the role of ACX in lactone biosynthesis. The result showed that γ-decalactone was the most abundant lactone compound. γ-Decalactone accumulation was highly correlated with ACX enzyme activity. Mass spectrometry (MS) showed that PpACX1 was the most abundant PpACX protein in fully ripe mesocarp of cv. 'HJ'. To further elucidate the function of the PpACX1 protein, the PpACX1 gene was heterologously expressed in a bacterial system and characterized in vitro. MS identification gave the molecular weight of the recombinant PpACX1 as 94.44 kDa and the coverage rate of the peptide segments was 47.3%. In cultured mesocarp discs in vitro, adding the purified recombinant PpACX1 and C16-CoA substrate induced the expected γ-decalactone biosynthesis. Using a sandwich ELISA based on mixed mono- and polyclonal antibodies against recombinant PpACX1, PpACX1 content in mesocarp was found to be highly correlated with γ-decalactone accumulation in mesocarp of five fully ripe varieties and four ripening stages of 'HJ' and 'YL'. This study revealed the vital function of PpACX1 in γ-decalactone biosynthesis in peach fruit.
Collapse
Affiliation(s)
- Liping Zhang
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Haiyan Li
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Ling Gao
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Yujie Qi
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Wanyi Fu
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Xiongwei Li
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
- Forest and Fruit Tree Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Xiang Zhou
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Qikang Gao
- Bio-Macromolecules Analysis Lab, Analysis Center of Agrobiology, Environmental Sciences of Zhejiang University, Hangzhou, 310058, China
| | - Zhongshan Gao
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China.
| | - Huijuan Jia
- Key Laboratory of Horticultural Plant Growth, Development and Quality improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| |
Collapse
|
47
|
Transcriptomic insight into terpenoid and carbazole alkaloid biosynthesis, and functional characterization of two terpene synthases in curry tree (Murraya koenigii). Sci Rep 2017; 7:44126. [PMID: 28272514 PMCID: PMC5341033 DOI: 10.1038/srep44126] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 02/03/2017] [Indexed: 02/07/2023] Open
Abstract
Curry tree (Murraya koenigii L.) is a rich source of aromatic terpenes and pharmacologically important carbazole alkaloids. Here, M. koenigii leaf transcriptome was generated to gain insight into terpenoid and alkaloid biosynthesis. Analysis of de novo assembled contigs yielded genes for terpene backbone biosynthesis and terpene synthases. Also, gene families possibly involved in carbazole alkaloid formation were identified that included polyketide synthases, prenyltransferases, methyltransferases and cytochrome P450s. Further, two genes encoding terpene synthases (MkTPS1 and MkTPS2) with highest in silico transcript abundance were cloned and functionally characterized to determine their involvement in leaf volatile formation. Subcellular localization using GFP fusions revealed the plastidial and cytosolic localization of MkTPS1 and MkTPS2, respectively. Enzymatic characterization demonstrated the monoterpene synthase activity of recombinant MkTPS1, which produced primarily (−)-sabinene from geranyl diphosphate (GPP). Recombinant MkTPS2 exhibited sesquiterpene synthase activity and formed (E,E)-α-farnesene as the major product from farnesyl diphosphate (FPP). Moreover, mRNA expression and leaf volatile analyses indicated that MkTPS1 accounts for (−)-sabinene emitted by M. koenigii leaves. Overall, the transcriptome data generated in this study will be a great resource and the start point for characterizing genes involved in the biosynthetic pathway of medicinally important carbazole alkaloids.
Collapse
|
48
|
Ker DS, Pang SL, Othman NF, Kumaran S, Tan EF, Krishnan T, Chan KG, Othman R, Hassan M, Ng CL. Purification and biochemical characterization of recombinant Persicaria minor β-sesquiphellandrene synthase. PeerJ 2017; 5:e2961. [PMID: 28265494 PMCID: PMC5333544 DOI: 10.7717/peerj.2961] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 01/05/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Sesquiterpenes are 15-carbon terpenes synthesized by sesquiterpene synthases using farnesyl diphosphate (FPP) as a substrate. Recently, a sesquiterpene synthase gene that encodes a 65 kDa protein was isolated from the aromatic plant Persicaria minor. Here, we report the expression, purification and characterization of recombinant P. minor sesquiterpene synthase protein (PmSTS). Insights into the catalytic active site were further provided by structural analysis guided by multiple sequence alignment. METHODS The enzyme was purified in two steps using affinity and size exclusion chromatography. Enzyme assays were performed using the malachite green assay and enzymatic product was identified using gas chromatography-mass spectrometry (GC-MS) analysis. Sequence analysis of PmSTS was performed using multiple sequence alignment (MSA) against plant sesquiterpene synthase sequences. The homology model of PmSTS was generated using I-TASSER server. RESULTS Our findings suggest that the recombinant PmSTS is mainly expressed as inclusion bodies and soluble aggregate in the E. coli protein expression system. However, the addition of 15% (v/v) glycerol to the protein purification buffer and the removal of N-terminal 24 amino acids of PmSTS helped to produce homogenous recombinant protein. Enzyme assay showed that recombinant PmSTS is active and specific to the C15 substrate FPP. The optimal temperature and pH for the recombinant PmSTS are 30 °C and pH 8.0, respectively. The GC-MS analysis further showed that PmSTS produces β-sesquiphellandrene as a major product and β-farnesene as a minor product. MSA analysis revealed that PmSTS adopts a modified conserved metal binding motif (NSE/DTE motif). Structural analysis suggests that PmSTS may binds to its substrate similarly to other plant sesquiterpene synthases. DISCUSSION The study has revealed that homogenous PmSTS protein can be obtained with the addition of glycerol in the protein buffer. The N-terminal truncation dramatically improved the homogeneity of PmSTS during protein purification, suggesting that the disordered N-terminal region may have caused the formation of soluble aggregate. We further show that the removal of the N-terminus disordered region of PmSTS does not affect the product specificity. The optimal temperature, optimal pH, Km and kcat values of PmSTS suggests that PmSTS shares similar enzyme characteristics with other plant sesquiterpene synthases. The discovery of an altered conserved metal binding motif in PmSTS through MSA analysis shows that the NSE/DTE motif commonly found in terpene synthases is able to accommodate certain level of plasticity to accept variant amino acids. Finally, the homology structure of PmSTS that allows good fitting of substrate analog into the catalytic active site suggests that PmSTS may adopt a sesquiterpene biosynthesis mechanism similar to other plant sesquiterpene synthases.
Collapse
Affiliation(s)
- De-Sheng Ker
- Institute of Systems Biology, Universiti Kebangsaan Malaysia , Bangi , Selangor , Malaysia
| | - Sze Lei Pang
- Institute of Systems Biology, Universiti Kebangsaan Malaysia , Bangi , Selangor , Malaysia
| | - Noor Farhan Othman
- Institute of Systems Biology, Universiti Kebangsaan Malaysia , Bangi , Selangor , Malaysia
| | - Sekar Kumaran
- Institute of Systems Biology, Universiti Kebangsaan Malaysia , Bangi , Selangor , Malaysia
| | - Ee Fun Tan
- Institute of Systems Biology, Universiti Kebangsaan Malaysia , Bangi , Selangor , Malaysia
| | - Thiba Krishnan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya , Kuala Lumpur , Malaysia
| | - Kok Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya , Kuala Lumpur , Malaysia
| | - Roohaida Othman
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia; School of Biosciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Maizom Hassan
- Institute of Systems Biology, Universiti Kebangsaan Malaysia , Bangi , Selangor , Malaysia
| | - Chyan Leong Ng
- Institute of Systems Biology, Universiti Kebangsaan Malaysia , Bangi , Selangor , Malaysia
| |
Collapse
|
49
|
Manczak T, Simonsen HT. Insight into Biochemical Characterization of Plant Sesquiterpene Synthases. ANALYTICAL CHEMISTRY INSIGHTS 2016; 11:1-7. [PMID: 27721652 PMCID: PMC5045046 DOI: 10.4137/aci.s40292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/21/2016] [Accepted: 08/29/2016] [Indexed: 11/21/2022]
Abstract
A fast and reproducible protocol was established for enzymatic characterization of plant sesquiterpene synthases that can incorporate radioactivity in their products. The method utilizes the 96-well format in conjunction with cluster tubes and enables processing of >200 samples a day. Along with reduced reagent usage, it allows further reduction in the use of radioactive isotopes and flammable organic solvents. The sesquiterpene synthases previously characterized were expressed in yeast, and the plant-derived Thapsia garganica kunzeaol synthase TgTPS2 was tested in this method. KM for TgTPS2 was found to be 0.55 μM; the turnover number, kcat, was found to be 0.29 s−1, kcat for TgTPS2 is in agreement with that of terpene synthases of other plants, and kcat/KM was found to be 0.53 s−1 μM−1 for TgTPS2. The kinetic parameters were in agreement with previously published data.
Collapse
Affiliation(s)
- Tom Manczak
- Department of Plants and Environmental Sciences, Copenhagen University, Frederiksberg, Denmark
| | - Henrik Toft Simonsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| |
Collapse
|
50
|
Abstract
Terpenoids are a large and diverse class of plant metabolites including mono-, sesqui-, and diterpenes. They have numerous functions in basic physiological processes as well as the interaction of plants with their biotic and abiotic environment. Due to the tight regulation of biosynthetic pathways and the resulting limited natural availability of terpenes, there is a strong interest in increasing their production in plants by metabolic engineering for agricultural, pharmaceutical, and industrial applications. The tomato fruit system was developed as a platform for metabolic engineering of terpenes to overcome detrimental effects on overall plant growth and photosynthesis traits, which are affected when terpenoid engineering is performed in vegetative tissues. Here we describe how the use of fruit-specific promoters for transgene expression can avoid these unwanted effects. In addition, targeting the expression of the introduced terpene biosynthetic gene to fruit tissue can take advantage of the large precursor pool provided by the methylerythritol-phosphate (MEP) pathway, which is highly active during tomato fruit ripening to facilitate the accumulation of carotenoids. We also discuss how the production of high levels of target terpene compounds can be achieved in fruits by the expression of individual or a combination of (i) the MEP or mevalonic acid pathway enzymes, (ii) prenyltransferases, and/or (iii) terpene synthases. Finally, we provide a brief outline of how the emitted as well as internal pools of terpenes can be analyzed in transgenic tomato fruits.
Collapse
Affiliation(s)
- M Gutensohn
- Davis College of Agriculture, Natural Resources and Design, West Virginia University, Morgantown, WV, United States
| | - N Dudareva
- Purdue University, West Lafayette, IN, United States.
| |
Collapse
|