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Huang Y, Wang H, Zhang Y, Zhang P, Xiang Y, Zhang Y, Fu R. SCPL acyltransferases catalyze the metabolism of chlorogenic acid during purple coneflower seed germination. THE NEW PHYTOLOGIST 2024; 243:229-239. [PMID: 38666323 DOI: 10.1111/nph.19776] [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: 12/09/2023] [Accepted: 04/05/2024] [Indexed: 06/07/2024]
Abstract
The metabolism of massively accumulated chlorogenic acid is crucial for the successful germination of purple coneflower (Echinacea purpurea (L.) Menoch). A serine carboxypeptidase-like (SCPL) acyltransferase (chicoric acid synthase, CAS) utilizes chlorogenic acid to produce chicoric acid during germination. However, it seems that the generation of chicoric acid lags behind the decrease in chlorogenic acid, suggesting an earlier route of chlorogenic acid metabolism. We discovered another chlorogenic acid metabolic product, 3,5-dicaffeoylquinic acid, which is produced before chicoric acid, filling the lag phase. Then, we identified two additional typical clade IA SCPL acyltransferases, named chlorogenic acid condensing enzymes (CCEs), that catalyze the biosynthesis of 3,5-dicaffeoylquinic acid from chlorogenic acid with different kinetic characteristics. Chlorogenic acid inhibits radicle elongation in a dose-dependent manner, explaining the potential biological role of SCPL acyltransferases-mediated continuous chlorogenic acid metabolism during germination. Both CCE1 and CCE2 are highly conserved among Echinacea species, supporting the observed metabolism of chlorogenic acid to 3,5-dicaffeoylquinic acid in two Echinacea species without chicoric acid accumulation. The discovery of SCPL acyltransferase involved in the biosynthesis of 3,5-dicaffeoylquinic acid suggests convergent evolution. Our research clarifies the metabolism strategy of chlorogenic acid in Echinacea species and provides more insight into plant metabolism.
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Affiliation(s)
- Yuqing Huang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Hsihua Wang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Yuting Zhang
- Chengdu Branch, Sichuan Provincial Academy of Natural Resource Sciences, Wild Plants Sharing and Service Platform of Sichuan Province, Chengdu, 610015, China
| | - Pingyu Zhang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Yuting Xiang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Yang Zhang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Rao Fu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
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Alvarez-Velazquez MF, Espinosa-Gómez FC, Aristizabal JF, Garber PA, Serio-Silva JC. A simple assay for measuring tannin-protein precipitation capacity offers insights into the diet and food choice of black howler monkeys (Alouatta pigra). Am J Primatol 2024; 86:e23638. [PMID: 38715239 DOI: 10.1002/ajp.23638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/05/2024] [Accepted: 04/27/2024] [Indexed: 06/18/2024]
Abstract
Phenolics, like tannins, are plant-specialized metabolites that play a protective role against herbivory. Tannins can reduce palatability and bind with proteins to reduce digestibility, acting as deterrents to feeding and impacting nutrient extraction by herbivores. Some assays measure tannin and total phenolics content in plants but lack determination of their biological effects, hindering the interpretation of tannin function in herbivory and its impacts on animal behavior and ecology. In this study, we successfully applied the radial diffusion assay to assess tannin protein precipitation (PP) capacity and evaluate the anti-nutritional effects of tannins in food plants (n = 24) consumed by free-ranging black howler monkeys (Alouatta pigra) in Tabasco, Mexico. We found PP rings in five plant species consumed by the monkeys. The mature fruit of Inga edulis was the most consumed food plant, despite having a high tannin PP capacity (56.66 mg tannic acid equivalent/g dry matter). These findings highlight the presence of tannins in the black howler diet and provide insight into the primates' resilience and potential strategies for coping with anti-nutritional aspects of the diet.
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Affiliation(s)
- María Fernanda Alvarez-Velazquez
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología, A. C. (INECOL), Xalapa, Veracruz, México
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Popular Autónoma del Estado de Puebla (UPAEP), Puebla, Puebla, México
| | - Fabiola Carolina Espinosa-Gómez
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Popular Autónoma del Estado de Puebla (UPAEP), Puebla, Puebla, México
| | - John F Aristizabal
- Departamento de Ciencias Químico-Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez, Chihuahua, México
| | - Paul A Garber
- Department of Anthropology, Program in Ecology, Evolution and Conservation Biology, University of Illinois, Urbana, Illinois, USA
| | - Juan Carlos Serio-Silva
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología, A. C. (INECOL), Xalapa, Veracruz, México
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He J, Zhou Y, Geilfus CM, Cao J, Fu D, Baram S, Liu Y, Li Y. Enhancing tomato fruit antioxidant potential through hydrogen nanobubble irrigation. HORTICULTURE RESEARCH 2024; 11:uhae111. [PMID: 38898962 PMCID: PMC11186064 DOI: 10.1093/hr/uhae111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 04/06/2024] [Indexed: 06/21/2024]
Abstract
Eating fruits and vegetables loaded with natural antioxidants can boost human health considerably and help fight off diseases linked to oxidative stress. Hydrogen has unique antioxidant effects. However, its low-solubility and fast-diffusion has limited its applications in agriculture. Integration of hydrogen with nanobubble technology could address such problems. However, the physiological adaptation and response mechanism of crops to hydrogen nanobubbles is still poorly understood. Antioxidant concentrations of lycopene, ascorbic acid, flavonoids, and resveratrol in hydrogen nanobubble water drip-irrigated tomato fruits increased by 16.3-264.8% and 2.2-19.8%, respectively, compared to underground water and oxygen nanobubble water. Transcriptomic and metabolomic analyses were combined to investigate the regulatory mechanisms that differed from the controls. Comprehensive multi-omics analysis revealed differences in the abundances of genes responsible for hormonal control, hydrogenase genes, and necessary synthetic metabolites of antioxidants, which helped to clarify the observed improvements in antioxidants. This is the first case of hydrogen nanobubble water irrigation increasing numerous natural antioxidant parts in fruits. Considering the characteristics of hydrogen and the application of the nanobubble technology in agriculture, the findings of the present study could facilitate the understanding of the potential effects of hydrogen on biological processes and the mechanisms of action on plant growth and development.
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Affiliation(s)
- Jing He
- State Key Laboratory of Efficient Utilization of Agricultural Water Resources, China Agricultural University, Beijing 100083, China
- Engineering Research Center for Agricultural Water-Saving and Water Resources, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Yunpeng Zhou
- State Key Laboratory of Efficient Utilization of Agricultural Water Resources, China Agricultural University, Beijing 100083, China
- Engineering Research Center for Agricultural Water-Saving and Water Resources, Ministry of Education, China Agricultural University, Beijing 100083, China
| | - Christoph-Martin Geilfus
- Department of Soil Science & Plant Nutrition, Hochschule Geisenheim University, Hessen 65366, Germany
| | - Jiankang Cao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Daqi Fu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Shahar Baram
- Institute for Soil, Water and Environmental Sciences, Agricultural Research Organization, Ramat Yishay 30095, Israel
| | - Yanzheng Liu
- Department of Water Resources and Architectural Engineering, Beijing Vocational College of Agriculture, Beijing 102208, China
| | - Yunkai Li
- State Key Laboratory of Efficient Utilization of Agricultural Water Resources, China Agricultural University, Beijing 100083, China
- Engineering Research Center for Agricultural Water-Saving and Water Resources, Ministry of Education, China Agricultural University, Beijing 100083, China
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Putra R, Tölle M, Krämer U, Müller C. Effects of metal amendment and metalloid supplementation on foliar defences are plant accession-specific in the hyperaccumulator Arabidopsis halleri. Biometals 2024; 37:649-669. [PMID: 37874491 PMCID: PMC11101560 DOI: 10.1007/s10534-023-00550-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 10/05/2023] [Indexed: 10/25/2023]
Abstract
Soil pollution by metals and metalloids as a consequence of anthropogenic industrialisation exerts a seriously damaging impact on ecosystems. However, certain plant species, termed hyperaccumulators, are able to accumulate extraordinarily high concentrations of these metal(loid)s in their aboveground tissues. Such hyperaccumulation of metal(loid)s is known to act as a defence against various antagonists, such as herbivores and pathogens. We investigated the influences of metal(loid)s on potential defence traits, such as foliar elemental, organic and mechanical defences, in the hyperaccumulator plant species Arabidopsis halleri (Brassicaceae) by artificially amending the soil with common metallic pollutants, namely cadmium (Cd) and zinc (Zn). Additionally, unamended and metal-amended soils were supplemented with the metalloid silicon (Si) to study whether Si could alleviate metal excess. Individuals originating from one non-/low- and two moderately to highly metal-contaminated sites with different metal concentrations (hereafter called accessions) were grown for eight weeks in a full-factorial design under standardised conditions. There were significant interactive effects of metal amendment and Si supplementation on foliar concentrations of certain elements (Zn, Si, aluminium (Al), iron (Fe), potassium (K) and sulfur (S), but these were accession-specific. Profiles of glucosinolates, characteristic organic defences of Brassicaceae, were distinct among accessions, and the composition was affected by soil metal amendment. Moreover, plants grown on metal-amended soil contained lower concentrations of total glucosinolates in one of the accessions, which suggests a potential trade-off between inorganic defence acquisition and biosynthesis of organic defence. The density of foliar trichomes, as a proxy for the first layer of mechanical defence, was also influenced by metal amendment and/or Si supplementation in an accession-dependent manner. Our study highlights the importance of examining the effects of co-occurring metal(loid)s in soil on various foliar defence traits in different accessions of a hyperaccumulating species.
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Affiliation(s)
- Rocky Putra
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany.
| | - Max Tölle
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Ute Krämer
- Department of Molecular Genetics and Physiology of Plants, Ruhr University Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Caroline Müller
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
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Barabasz-Krasny B, Tatoj A, Chyc M, Gruszka W, Zandi P, Stachurska-Swakoń A. Chemical Basis for Determining the Allelopathic Potential of Invasive Plant Wall Barley ( Hordeum murinum L. subsp. murinum). Molecules 2024; 29:2365. [PMID: 38792226 PMCID: PMC11124008 DOI: 10.3390/molecules29102365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
The study investigated compounds present in the invasive grass Hordeum murinum L. subsp. murinum and tested the allelopathic potential of this plant against common meadow species Festuca rubra L. and Trifolium repens L. Gas chromatography-mass spectrometry (GC-MS) performed separately on the ears and stalks with leaves of wall barley revealed 32 compounds, including secondary metabolites, that may play an important role in allelopathy. Two compounds, N-butylbenzenesulfonamide (NBBS) and diphenylsulfone (DDS), were described for the first time for wall barley and the Poaceae family. The presence of 6,10,14-trimethylpentadecan-2-one (TMP) has also been documented. Aqueous extracts of H. murinum organs (ears and stalks with leaves) at concentrations of 2.5%, 5%, and 7.5% were used to evaluate its allelopathic potential. Compared to the control, all extracts inhibited germination and early growth stages of meadow species. The inhibitory effect was strongest at the highest concentration for both the underground and aboveground parts of the seedlings of the meadow species tested. Comparing the allelopathic effect, Trifolium repens proved to be more sensitive. In light of the results of the study, the removal of wall barley biomass appears to be important for the restoration of habitats where this species occurs due to its allelopathic potential.
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Affiliation(s)
- Beata Barabasz-Krasny
- Department of Botany, Institute of Biology and Earth Science, University of the National Education Commission, Podchorążych 2 St., 30-084 Kraków, Poland; (B.B.-K.); (A.T.)
| | - Agnieszka Tatoj
- Department of Botany, Institute of Biology and Earth Science, University of the National Education Commission, Podchorążych 2 St., 30-084 Kraków, Poland; (B.B.-K.); (A.T.)
| | - Marek Chyc
- Department of Environmental Protection, Faculty of Mathematical and Natural Sciences, University of Applied Sciences in Tarnów, Mickiewicza 8 St., 33-100 Tarnów, Poland;
| | - Wojciech Gruszka
- Department of Biological Sciences, Faculty of Physical Culture in Gorzów Wlkp., Poznan University of Physical Education, Estkowskiego 13 St., 66-400 Gorzów Wielkopolski, Poland;
| | - Peiman Zandi
- International Faculty of Applied Technology, Yibin University, Yibin 644000, China;
| | - Alina Stachurska-Swakoń
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3 St., 30-387 Kraków, Poland
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Bang JH, Jo IH, Sebastin R, Jeong WT, Oh S, Heo TY, Sung J, Hyun TK, So YS, Yu JK, AlGarawi AM, Hatamleh AA, Sung GH, Chung JW. Comparative Analysis of Polyphenolic Compounds in Different Amaranthus Species: Influence of Genotypes and Harvesting Year. Antioxidants (Basel) 2024; 13:501. [PMID: 38671947 PMCID: PMC11047707 DOI: 10.3390/antiox13040501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Amaranth is a nutritionally valuable crop, as it contains phenolic acids and flavonoids, yielding diverse plant secondary metabolites (PSMs) like phytosterol, tocopherols, and carotenoids. This study explored the variations in the contents of seventeen polyphenolic compounds within the leaves of one hundred twenty Amaranthus accessions representing nine Amaranthus species. The investigation entailed the analysis of phenolic content across nine Amaranthus species, specifically A. hypochondriacus, A. cruentus, A. caudatus, A. tricolor, A. dubius, A. blitum, A. crispus, A. hybridus, and A. viridis, utilizing ultra performance liquid chromatography with photodiode array detection (UPLC-PDA). The results revealed significant differences in polyphenolic compounds among accessions in which rutin content was predominant in all Amaranthus species in both 2018 and 2019. Among the nine Amaranthus species, the rutin content ranged from 95.72 ± 199.17 μg g-1 (A. dubius) to 1485.09 ± 679.51 μg g-1 (A. viridis) in 2018 and from 821.59 ± 709.95 μg g-1 (A. tricolor) to 3166.52 ± 1317.38 μg g-1 (A. hypochondriacus) in 2019. Correlation analysis revealed, significant positive correlations between rutin and kaempferol-3-O-β-rutinoside (r = 0.93), benzoic acid and ferulic acid (r = 0.76), and benzoic acid and kaempferol-3-O-β-rutinoside (r = 0.76), whereas gallic acid showed consistently negative correlations with each of the 16 phenolic compounds. Wide variations were identified among accessions and between plants grown in the two years. The nine species and one hundred twenty Amaranthus accessions were clustered into six groups based on their seventeen phenolic compounds in each year. These findings contribute to expanding our understanding of the phytochemical traits of accessions within nine Amaranthus species, which serve as valuable resources for Amaranthus component breeding and functional material development.
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Affiliation(s)
- Jun-Hyoung Bang
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.-H.B.); (R.S.); (T.k.H.)
| | - Ick-Hyun Jo
- Department of Crop Science and Biotechnology, Dankook University, Cheonan 31116, Republic of Korea;
| | - Raveendar Sebastin
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.-H.B.); (R.S.); (T.k.H.)
| | - Won Tea Jeong
- Residual Agrochemical Assessment Division, National Institue of Agricultural Science, Rural Development Administration, Wanju 55365, Republic of Korea;
| | - Sangtaek Oh
- Department of Information Statistics, Chungbuk National University, Cheongju 28644, Republic of Korea; (S.O.); (T.-Y.H.)
| | - Tae-Young Heo
- Department of Information Statistics, Chungbuk National University, Cheongju 28644, Republic of Korea; (S.O.); (T.-Y.H.)
| | - Jeehye Sung
- Department of Food Science and Biotechnology, Andong National University, Andong 36729, Republic of Korea;
| | - Tae kyung Hyun
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.-H.B.); (R.S.); (T.k.H.)
| | - Yoon-Sup So
- Department of Crop Science, Chungbuk National University, Cheongju 28644, Republic of Korea; (Y.-S.S.); (J.-K.Y.)
| | - Ju-Kyung Yu
- Department of Crop Science, Chungbuk National University, Cheongju 28644, Republic of Korea; (Y.-S.S.); (J.-K.Y.)
| | - Amal Mohamed AlGarawi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.M.A.); (A.A.H.)
| | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.M.A.); (A.A.H.)
| | - Gi-Ho Sung
- Biomedical Institute of Mycological Resource, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea
- Department of Convergence Science, College of Medicine, Catholic Kwandong University, Gangneung 25601, Republic of Korea
| | - Jong-Wook Chung
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Republic of Korea; (J.-H.B.); (R.S.); (T.k.H.)
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Ojeda-Prieto L, Medina-van Berkum P, Unsicker SB, Heinen R, Weisser WW. Intraspecific chemical variation of Tanacetum vulgare affects plant growth and reproductive traits in field plant communities. PLANT BIOLOGY (STUTTGART, GERMANY) 2024. [PMID: 38593287 DOI: 10.1111/plb.13646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/31/2024] [Indexed: 04/11/2024]
Abstract
The study investigated the impact of intraspecific plant chemodiversity on plant growth and reproductive traits at both the plant and plot levels. It also aimed to understand how chemodiversity at stand level affects ecosystem functioning and plant-plant interactions. We describe a biodiversity experiment in which we manipulated intraspecific plant chemodiversity at the plot level using six different chemotypes of common tansy (Tanacetum vulgare L., Asteraceae). We tested the effects of chemotype identity and plot-level chemotype richness on plant growth and reproductive traits and plot-level headspace emissions. The study found that plant chemotypes differed in growth and reproductive traits and that traits were affected by the chemotype richness of the plots. Although morphological differences among chemotypes became less pronounced over time, reproductive phenology patterns persisted. Plot-level trait means were also affected by the presence or absence of certain chemotypes in a plot, and the direction of the effect depended on the specific chemotype. However, chemotype richness did not lead to overyielding effects. Lastly, chemotype blends released from plant communities were neither richer nor more diverse with increasing plot-level chemotype richness, but became more dissimilar as they became more dissimilar in their leaf terpenoid profiles. We found that intraspecific plant chemodiversity is crucial in plant-plant interactions. We also found that the effects of chemodiversity on plant growth and reproductive traits were complex and varied depending on the chemotype richness of the plots. This long-term field experiment will allow further investigation into plant-insect interactions and insect community assembly in response to intraspecific chemodiversity.
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Affiliation(s)
- L Ojeda-Prieto
- Terrestrial Ecology Research Group, Department for Life Science Systems, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - P Medina-van Berkum
- Department for Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - S B Unsicker
- Department for Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany
- Plant-Environment-Interactions Group, Botanical Institute, University of Kiel, Kiel, Germany
| | - R Heinen
- Terrestrial Ecology Research Group, Department for Life Science Systems, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - W W Weisser
- Terrestrial Ecology Research Group, Department for Life Science Systems, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
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Qi J, Wang X, Zhang T, Li C, Wang Z. Adult Feeding Experience Determines the Fecundity and Preference of the Henosepilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae). BIOLOGY 2024; 13:250. [PMID: 38666862 PMCID: PMC11048397 DOI: 10.3390/biology13040250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/01/2024] [Accepted: 04/06/2024] [Indexed: 04/28/2024]
Abstract
Both larvae and adults of the Henosepilachna vigintioctopunctata feed on leaves of potatoes, tomatoes, and eggplants. Given the variation in planting times of host plants in the Jianghan Plain, host switching between larvae and adults of H. vigintioctopunctata is inevitable to ensure continuous food availability. We evaluated the effect of consistent versus diverse larval and adult host plant feeding experience on growth performance, fecundity, longevity, and feeding preferences of H. vigintioctopunctata through match-mismatch experiments. Host plant quality significantly influences larval development and adult reproduction. Potatoes are identified as the optimal host plant for H. vigintioctopunctata, whereas eggplants significantly negatively affect the adult fecundity. Adult stage host feeding experience determines the fecundity of H. vigintioctopunctata, irrespective of the larval feeding experience. The fecundity of H. vigintioctopunctata adults on eggplant leaves remains significantly lower than that observed on potato leaves. Similarly, adult H. vigintioctopunctata demonstrate a preference for consuming potato leaves, irrespective of the larval feeding experience. Although host switching between larval and adult stages offers lesser benefits for the performance of herbivorous insects compared to a consistent diet with potato leaves, it maintains H. vigintioctopunctata population continuity amidst shortages of high-quality potato hosts.
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Affiliation(s)
| | | | | | | | - Zailing Wang
- Hubei Engineering Research Center for Pest Forewarning and Management, Institute of Entomology, College of Agriculture, Yangtze University, Jingzhou 434025, China; (J.Q.); (X.W.); (T.Z.); (C.L.)
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Ullah A, Klutsch JG, Erbilgin N. Complementary roles of two classes of defense chemicals in white spruce against spruce budworm. PLANTA 2024; 259:105. [PMID: 38551685 DOI: 10.1007/s00425-024-04383-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 03/08/2024] [Indexed: 04/02/2024]
Abstract
MAIN CONCLUSION Monoterpenes and phenolics play distinct roles in defending white spruce trees from insect defoliators. Monoterpenes contribute to the toxicity of the foliage, deterring herbivory, whereas phenolics impede budworm growth. This study demonstrates the complex interplay between monoterpenes and phenolics and their collective influence on the defense strategy of white spruce trees against a common insect defoliator. Long-lived coniferous trees display considerable variations in their defensive chemistry. The impact of these defense phenotype variations on insect herbivores of the same species remains to be thoroughly studied, mainly due to challenges in replicating the comprehensive defense profiles of trees under controlled conditions. This study methodically examined the defensive properties of foliar monoterpenes and phenolics across 80 distinct white spruce families. These families were subsequently grouped into two chemotypes based on their foliar monoterpene concentrations. To understand the separate and combined effects of these classes on tree defenses to the eastern spruce budworm, we conducted feeding experiments using actual defense profiles from representative families. Specifically, we assessed budworm response when exposed to substrates amended with phenolics alone or monoterpenes. Our findings indicate that the ratios and amounts of monoterpenes and phenolics present in the white spruce foliage influence the survival of spruce budworms. Phenotypes associated with complete larval mortality exhibited elevated ratios (ranging from 0.4 to 0.6) and concentrations (ranging from 1143 to 1796 ng mg-1) of monoterpenes. Conversely, families characterized by higher phenolic ratios (ranging from 0.62 to 0.77) and lower monoterpene concentrations (ranging from 419 to 985 ng mg-1) were less lethal to the spruce budworm. Both classes of defense compounds contribute significantly to the overall defensive capabilities of white spruce trees. Monoterpenes appear critical in determining the general toxicity of foliage, while phenolics play a role in slowing budworm development, thereby underscoring their collective importance in white spruce defenses.
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Affiliation(s)
- Aziz Ullah
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada.
| | - Jennifer G Klutsch
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada
- Natural Resources Canada, Canadian Forest Service, Edmonton, AB, T6H 3S5, Canada
| | - Nadir Erbilgin
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada
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Rivest S, Muralidhar M, Forrest JRK. Pollen chemical and mechanical defences restrict host-plant use by bees. Proc Biol Sci 2024; 291:20232298. [PMID: 38471551 PMCID: PMC10932708 DOI: 10.1098/rspb.2023.2298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/31/2024] [Indexed: 03/14/2024] Open
Abstract
Plants produce an array of chemical and mechanical defences that provide protection against many herbivores and pathogens. Putatively defensive compounds and structures can even occur in floral rewards: for example, the pollen of some plant taxa contains toxic compounds or possesses conspicuous spines. Yet little is known about whether pollen defences restrict host-plant use by bees. In other words, do bees, like other insect herbivores, tolerate the defences of their specific host plants while being harmed by non-host defences? To answer this question, we compared the effects of a chemical defence from Lupinus (Fabaceae) pollen and a putative mechanical defence (pollen spines) from Asteraceae pollen on larval survival of nine bee species in the tribe Osmiini (Megachilidae) varying in their pollen-host use. We found that both types of pollen defences reduce larval survival rate in some bee species. These detrimental effects were, however, mediated by host-plant associations, with bees being more tolerant of the pollen defences of their hosts, relative to the defences of plant taxa exploited by other species. This pattern strongly suggests that bees are adapted to the pollen defences of their hosts, and that host-plant use by bees is constrained by their ability to tolerate such defences.
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Affiliation(s)
- Sébastien Rivest
- Department of Biology, University of Ottawa, Ottawa, ON, Canada K1N 6N5
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
| | | | - Jessica R. K. Forrest
- Department of Biology, University of Ottawa, Ottawa, ON, Canada K1N 6N5
- Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
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11
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Delory BM, Callaway RM, Semchenko M. A trait-based framework linking the soil metabolome to plant-soil feedbacks. THE NEW PHYTOLOGIST 2024; 241:1910-1921. [PMID: 38124274 DOI: 10.1111/nph.19490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
By modifying the biotic and abiotic properties of the soil, plants create soil legacies that can affect vegetation dynamics through plant-soil feedbacks (PSF). PSF are generally attributed to reciprocal effects of plants and soil biota, but these interactions can also drive changes in the identity, diversity and abundance of soil metabolites, leading to more or less persistent soil chemical legacies whose role in mediating PSF has rarely been considered. These chemical legacies may interact with microbial or nutrient legacies to affect species coexistence. Given the ecological importance of chemical interactions between plants and other organisms, a better understanding of soil chemical legacies is needed in community ecology. In this Viewpoint, we aim to: highlight the importance of belowground chemical interactions for PSF; define and integrate soil chemical legacies into PSF research by clarifying how the soil metabolome can contribute to PSF; discuss how functional traits can help predict these plant-soil interactions; propose an experimental approach to quantify plant responses to the soil solution metabolome; and describe a testable framework relying on root economics and seed dispersal traits to predict how plant species affect the soil metabolome and how they could respond to soil chemical legacies.
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Affiliation(s)
- Benjamin M Delory
- Institute of Ecology, Leuphana University of Lüneburg, Lüneburg, 21335, Germany
- Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, 3584 CB, the Netherlands
| | - Ragan M Callaway
- Division of Biological Sciences and Institute on Ecosystems, University of Montana, Missoula, MT, 59812, USA
| | - Marina Semchenko
- Institute of Ecology and Earth Sciences, University of Tartu, Liivi 2, 50409, Tartu, Estonia
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12
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Semerdjieva I, Zheljazkov VD, Dincheva I, Radoukova T, Astatkie T, Maneva V, Atanasova D, Fidan H, Stankov S, Stoyanova A. Chemical profile of Juniperus excelsa M. Bieb. essential oil within and between populations and its weed seed suppression effect. PLoS One 2024; 19:e0294126. [PMID: 38330006 PMCID: PMC10852245 DOI: 10.1371/journal.pone.0294126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/25/2023] [Indexed: 02/10/2024] Open
Abstract
The aims of this study were to (1) establish the intrapopulation and seasonal variation of Juniperus excelsа essential oil (EO); (2) compare the J. excelsa concrete and resinoid composition with its EO composition; and (3) investigate the potential herbicidal activity of J. excelsa EO against seeds of Papaver rhoeas L., Consolida orientalis (J.Gay) Schrödinger, Anthemis arvensis L., Avena fatua L., and Agrostemma githago L. Four independent studies were performed to meet these objectives. Twenty-eight individual trees were analyzed from two populations to establish intrapopulation and interpopulation variability of EOs yield and composition. In the seasonal dynamic study of leaf EO, samples from the same three trees and in the same population were collected in January, March, May, July, October, and December and their EO yield and composition determined. The EOs (intrapopulation and seasonal) were extracted by hydrodistillation, while the EO for the herbicidal test was obtained by steam distillation in a semi-commercial (SCom) apparatus. Overall, the EO yield varied significantly from 0.93% to 2.57%. α-Pinene (8.85-35.94%), limonene (11.81-50.08%), and cedrol (3.41-34.29%) were the predominant EO compounds in all samples (intrapopulation variability); however, trans-2,4-decadienol and β-caryophyllene were predominant in some individual trees. Four chemical groups were identified in the samples collected from two natural populations (intrapopulation). This is the first report on the compositions of J. excelsa concrete and resinoid. Cedrol (15.39%), 7-hydroxy-4-methyl-coumarin (17.63%), 1-octacosanol (36.85%), tritriacontane (16.08%), and tiacontanoic acid were the main compounds in the concrete and resinoid. Juniperus excelsa EO suppressed seed germination and seedling growth of P. rhoeas, C. orientalis, A. arvensis, A. fatua, and A. githago, demonstrating its potential to be used for the development of new biopesticides. The highest EO yield with high content of limonene and cedrol was obtained from samples harvested during the winter months (December, January, and March).
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Affiliation(s)
- Ivanka Semerdjieva
- Department of Botany and Agrometeorology, Agricultural University, Mendeleev, Plovdiv, Bulgaria
- Department of Plant and Fungal Diversity and Resources, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Valtcho D. Zheljazkov
- Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon, United States of America
| | - Ivayla Dincheva
- Plant Genetic Research Group, AgroBioInstitute, Agricultural Academy, Sofia, Bulgaria
| | - Tzenka Radoukova
- Department of Botany and Biological Education, University of Plovdiv Paisii Hilendarski, Plovdiv, Bulgaria
| | - Tess Astatkie
- Faculty of Agriculture, Dalhousie University, Truro, Canada
| | - Vasilina Maneva
- Plant Protection and Technology Department, Institute of Agriculture, Karnobat, Agricultural Academy, Karnobat, Bulgaria
| | - Dina Atanasova
- Plant Protection and Technology Department, Institute of Agriculture, Karnobat, Agricultural Academy, Karnobat, Bulgaria
| | - Hafize Fidan
- Department of Tourism and Culinary Management, Faculty of Economics, University of Food Technologies, Plovdiv, Bulgaria
| | - Stanko Stankov
- Department of Tourism and Culinary Management, Faculty of Economics, University of Food Technologies, Plovdiv, Bulgaria
| | - Albena Stoyanova
- Department of Technology of Tobacco, Sugar, Vegetable and Essential Oils, University of Food Technologies, Maritza, Plovdiv, Bulgaria
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13
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Thon FM, Müller C, Wittmann MJ. The evolution of chemodiversity in plants-From verbal to quantitative models. Ecol Lett 2024; 27:e14365. [PMID: 38362774 DOI: 10.1111/ele.14365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/31/2023] [Accepted: 12/09/2023] [Indexed: 02/17/2024]
Abstract
Plants harbour a great chemodiversity, that is diversity of specialised metabolites (SMs), at different scales. For instance, individuals can produce a large number of SMs, and populations can differ in their metabolite composition. Given the ecological and economic importance of plant chemodiversity, it is important to understand how it arises and is maintained over evolutionary time. For other dimensions of biodiversity, that is species diversity and genetic diversity, quantitative models play an important role in addressing such questions. Here, we provide a synthesis of existing hypotheses and quantitative models, that is mathematical models and computer simulations, for the evolution of plant chemodiversity. We describe each model's ingredients, that is the biological processes that shape chemodiversity, the scales it considers and whether it has been formalized as a quantitative model. Although we identify several quantitative models, not all are dynamic and many influential models have remained verbal. To fill these gaps, we outline our vision for the future of chemodiversity modelling. We identify quantitative models used for genetic variation that may be adapted for chemodiversity, and we present a flexible framework for the creation of individual-based models that address different scales of chemodiversity and combine different ingredients that bring this chemodiversity about.
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Affiliation(s)
- Frans M Thon
- Faculty of Biology, Theoretical Biology, Bielefeld University, Bielefeld, Germany
| | - Caroline Müller
- Faculty of Biology, Chemical Ecology, Bielefeld University, Bielefeld, Germany
- Joint Institute for Individualisation in a Changing Environment (JICE), University of Münster and Bielefeld University, Bielefeld, Germany
| | - Meike J Wittmann
- Faculty of Biology, Theoretical Biology, Bielefeld University, Bielefeld, Germany
- Joint Institute for Individualisation in a Changing Environment (JICE), University of Münster and Bielefeld University, Bielefeld, Germany
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14
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Kumar B, Misra A, Rawat P, Agnihotri P, Srivastava S. Anti-rheumatic potential vis-à-vis aconitine and hypaconitine content analysis in different Aconitum spp. from Sikkim Himalayas (India). Chem Biodivers 2024; 21:e202301656. [PMID: 38217357 DOI: 10.1002/cbdv.202301656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/15/2024]
Abstract
Aconitum spp. are important medicinal plants mentioned in Ayurveda as Ativisa or Vatsanabha. The present study aims to evaluate anti-rheumatic potential in seven Aconitum species and correlation with aconitine and hypaconitine content. Anti-rheumatic potential was analyzed through in vitro xanthine oxidase inhibition, anti-inflammatory and ROS scavenging assays; and quantification of aconitine and hypaconitine with RP-HPLC method validated as per ICH guidelines. The findings reveal that A. palmatum possessed the most promising response (IC50 =12.68±0.15 μg/ml) followed by A. ferox (IC50 =12.912±1.87 μg/ml) for xanthin oxidase inhibition. We observed a wide variation in aconitine and hypaconitine content ranging from 0.018 %-1.37 % and 0.0051 %-0.077 % respectively on dry weight basis. Aconitine and hypaconitine showed moderate positive correlation (r=0.68 and 0.59 respectively) with anti-rheumatic potential. The study identifies potential alternative species of Aconitum that can help in sustainable availability of quality raw material.
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Affiliation(s)
- Bhanu Kumar
- Pharmacognosy Division, CSIR- National Botanical Research Institute, Lucknow (U.P.), 226001, India
| | - Ankita Misra
- Pharmacognosy Division, CSIR- National Botanical Research Institute, Lucknow (U.P.), 226001, India
| | - Poonam Rawat
- Pharmacognosy Division, CSIR- National Botanical Research Institute, Lucknow (U.P.), 226001, India
| | - Priyanka Agnihotri
- Plant Diversity, Systematics and Herbarium Division, CSIR- National Botanical Research Institute, Lucknow (U.P.), 226001, India
| | - Sharad Srivastava
- Pharmacognosy Division, CSIR- National Botanical Research Institute, Lucknow (U.P.), 226001, India
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15
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Monzote L, Machín L, González A, Scull R, Gutiérrez YI, Satyal P, Gille L, Setzer WN. Eugenol-Rich Essential Oil from Pimenta dioica: In Vitro and In Vivo Potentialities against Leishmania amazonensis. Pharmaceuticals (Basel) 2023; 17:64. [PMID: 38256897 PMCID: PMC10819736 DOI: 10.3390/ph17010064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/16/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024] Open
Abstract
Pimenta dioica L. is one the most recognized species with diverse biological activities. In this study, in vitro activity and in vivo efficacy of essential oil from P. dioica (EO-Pd) was evaluated. The main compound was also included in the animal studies and its in silico prediction related to biological activities, molecular ligands, drug likeness, and ADME (absorption, distribution, metabolism, and excretion) properties are listed. The chemical composition analyzed by GC-MS retrieved 45 components, which the most abundant compound was the eugenol (80.1%). The EO-Pd was able to inhibit the growth of L. amazonensis (IC50 = 9.7 ± 0.7 and 11.3 ± 2.1 µg/mL, promastigotes and amastigotes, respectively). The cytotoxicity assay showed a CC50 of 104.5 ± 0.9 µg/mL and a selectivity index of 9. In the model of cutaneous leishmaniasis in BALB/c mice, the effect of EO-Pd and eugenol was observed after treatment at 30 mg/kg by intralesional route with 5 administrations every 4 days. In the in silico predictions, some targets that justified the antileishmanial activity of eugenol and good drug like properties for this compound, were obtained. This study showed for first time the potential of EO-Pd to inhibit L. amazonensis, which could be linked to the activity of major compound eugenol.
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Affiliation(s)
- Lianet Monzote
- Parasitology Department, Center of Research, Diagnostic and Reference, Institute of Tropical Medicine “Pedro Kouri”, Havana 17100, Cuba
- Research Network Natural Products against Neglected Diseases (ResNetNPND), 48149 Munster, Germany
| | - Laura Machín
- Department of Pharmacy, Institute of Pharmacy and Food, Havana University, Havana 13600, Cuba
| | - Adiel González
- Parasitology Department, Center of Research, Diagnostic and Reference, Institute of Tropical Medicine “Pedro Kouri”, Havana 17100, Cuba
| | - Ramón Scull
- Department of Pharmacy, Institute of Pharmacy and Food, Havana University, Havana 13600, Cuba
| | - Yamilet I. Gutiérrez
- Department of Pharmacy, Institute of Pharmacy and Food, Havana University, Havana 13600, Cuba
| | - Prabodh Satyal
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA;
| | - Lars Gille
- Institute of Pharmacology and Toxicology, Department of Biomedical Sciences, University of Veterinary Medicine, Veterinärplatz 1, A-1210 Vienna, Austria;
| | - William N. Setzer
- Research Network Natural Products against Neglected Diseases (ResNetNPND), 48149 Munster, Germany
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA;
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
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16
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Dong Y, Wei Z, Yang R, Zhang Y, Sun M, Bai H, Mo M, Yao C, Li H, Shi L. Chemical Compositions of Essential Oil Extracted from Eight Thyme Species and Potential Biological Functions. PLANTS (BASEL, SWITZERLAND) 2023; 12:4164. [PMID: 38140491 PMCID: PMC10747983 DOI: 10.3390/plants12244164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
Thymus is an herbaceous perennial or subshrub of the Lamiaceae family and is widely distributed worldwide. Essential oils extracted from thymus have attracted much attention, owing to their potential biological functions. Here, we evaluated the chemical compositions of eight thyme essential oils (TEOs) using gas chromatography mass spectrometry and assessed their antioxidant activity. The results showed that (1) the main components in eight TEOs were monoterpene hydrocarbons and oxygenated monoterpenes (84.26-92.84%), and the chemical compositions of the TEOs were affected by the specie factor; (2) eight TEOs could be divided into three groups (thymol-, geraniol-, and nerol acetate-types), and thymol was the main type; (3) eight TEOs had some common compounds, such as thymol and p-cymene, which were the main components in seven TEOs; (4) eight TEOs had antioxidant activity, and Thymus pulegioides, Thymus thracicus, and Thymus serpyllum EOs had stronger antioxidant activity than vitamin E (0.07-0.27 fold) at a concentration of 1 mg/mL, while Thymus quinquecostatus and Thymus longicaulis EOs had relatively weak antioxidant activity. In addition, three chemical type standards were used to evaluate potential roles in antibacterial and tumor therapy. The results showed that thymol had strong antibacterial activity against the growth of Escherichia coli and Staphylococcus aureus, and antimigratory activity for A549 cell. Overall, our results can provide a theoretical basis for further exploring the function of natural products from thyme essential oils.
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Affiliation(s)
- Yanmei Dong
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (Y.D.); (Z.W.); (R.Y.); (Y.Z.); (M.S.); (H.B.)
- China National Botanical Garden, Beijing 100093, China
| | - Ziling Wei
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (Y.D.); (Z.W.); (R.Y.); (Y.Z.); (M.S.); (H.B.)
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Yang
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (Y.D.); (Z.W.); (R.Y.); (Y.Z.); (M.S.); (H.B.)
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanan Zhang
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (Y.D.); (Z.W.); (R.Y.); (Y.Z.); (M.S.); (H.B.)
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meiyu Sun
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (Y.D.); (Z.W.); (R.Y.); (Y.Z.); (M.S.); (H.B.)
- China National Botanical Garden, Beijing 100093, China
| | - Hongtong Bai
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (Y.D.); (Z.W.); (R.Y.); (Y.Z.); (M.S.); (H.B.)
- China National Botanical Garden, Beijing 100093, China
| | - Meiling Mo
- Sinno Cosmetics Co., Ltd., Zhongshan 528451, China; (M.M.); (C.Y.)
| | - Chunlei Yao
- Sinno Cosmetics Co., Ltd., Zhongshan 528451, China; (M.M.); (C.Y.)
| | - Hui Li
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (Y.D.); (Z.W.); (R.Y.); (Y.Z.); (M.S.); (H.B.)
- China National Botanical Garden, Beijing 100093, China
| | - Lei Shi
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (Y.D.); (Z.W.); (R.Y.); (Y.Z.); (M.S.); (H.B.)
- China National Botanical Garden, Beijing 100093, China
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17
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García Méndez MDC, Encarnación-Guevara S, Martínez Batallar ÁG, Gómez-Caudillo L, Bru-Martínez R, Martínez Márquez A, Selles Marchart S, Tovar-Sánchez E, Álvarez-Berber L, Marquina Bahena S, Perea-Arango I, Arellano-García JDJ. High variability of perezone content in rhizomes of Acourtia cordata wild plants, environmental factors related, and proteomic analysis. PeerJ 2023; 11:e16136. [PMID: 38025722 PMCID: PMC10656900 DOI: 10.7717/peerj.16136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 08/29/2023] [Indexed: 12/01/2023] Open
Abstract
With the aim of exploring the source of the high variability observed in the production of perezone, in Acourtia cordata wild plants, we analyze the influence of soil parameters and phenotypic characteristics on its perezone content. Perezone is a sesquiterpene quinone responsible for several pharmacological effects and the A. cordata plants are the natural source of this metabolite. The chemistry of perezone has been widely studied, however, no studies exist related to its production under natural conditions, nor to its biosynthesis and the environmental factors that affect the yield of this compound in wild plants. We also used a proteomic approach to detect differentially expressed proteins in wild plant rhizomes and compare the profiles of high vs. low perezone-producing plants. Our results show that in perezone-producing rhizomes, the presence of high concentrations of this compound could result from a positive response to the effects of some edaphic factors, such as total phosphorus (Pt), total nitrogen (Nt), ammonium (NH4), and organic matter (O. M.), but could also be due to a negative response to the soil pH value. Additionally, we identified 616 differentially expressed proteins between high and low perezone producers. According to the functional annotation of this comparison, the upregulated proteins were grouped in valine biosynthesis, breakdown of leucine and isoleucine, and secondary metabolism such as terpenoid biosynthesis. Downregulated proteins were grouped in basal metabolism processes, such as pyruvate and purine metabolism and glycolysis/gluconeogenesis. Our results suggest that soil parameters can impact the content of perezone in wild plants. Furthermore, we used proteomic resources to obtain data on the pathways expressed when A. cordata plants produce high and low concentrations of perezone. These data may be useful to further explore the possible relationship between perezone production and abiotic or biotic factors and the molecular mechanisms related to high and low perezone production.
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Affiliation(s)
- Ma del Carmen García Méndez
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | | | | | - Leopoldo Gómez-Caudillo
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Roque Bru-Martínez
- Departamento de Agroquímica y Bioquímica, Facultad de Ciencias, Universidad de Alicante, Alicante, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante, Instituto de Investigación Sanitaria y Biomédica de Alicante, Alicante, Spain
| | - Ascensión Martínez Márquez
- Departamento de Agroquímica y Bioquímica, Facultad de Ciencias, Universidad de Alicante, Alicante, Spain
| | - Susana Selles Marchart
- Departamento de Agroquímica y Bioquímica, Facultad de Ciencias, Universidad de Alicante, Alicante, Spain
| | - Efraín Tovar-Sánchez
- Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico
| | - Laura Álvarez-Berber
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico
| | - Silvia Marquina Bahena
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Mexico
| | - Irene Perea-Arango
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
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18
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Klotz M, Schaller J, Engelbrecht BMJ. Silicon-based anti-herbivore defense in tropical tree seedlings. FRONTIERS IN PLANT SCIENCE 2023; 14:1250868. [PMID: 37900768 PMCID: PMC10602810 DOI: 10.3389/fpls.2023.1250868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023]
Abstract
Silicon-based defenses deter insect herbivores in many cultivated and wild grass species. Furthermore, in some of these species, silicon (Si) uptake and defense can be induced by herbivory. Tropical trees also take up Si and leaf Si concentrations vary greatly across and within species. As herbivory is a major driver of seedling mortality and niche differentiation of tropical tree species, understanding anti-herbivore defenses is pivotal. Yet, whether silicon is a constitutive and inducible herbivory defense in tropical forest tree species remains unknown. We grew seedlings of eight tropical tree species in a full factorial experiment, including two levels of plant-available soil Si concentrations (-Si/+Si) and a simulated herbivory treatment (-H/+H). The simulated herbivory treatment was a combination of clipping and application of methyl jasmonate. We then carried out multiple-choice feeding trials, separately for each tree species, in which leaves of each treatment combination were offered to a generalist caterpillar (Spodoptera frugiperda). Leaf damage was assessed. Three species showed a significant decrease in leaf damage under high compared to low Si conditions (by up to 72%), consistent with our expectation of Si-based defenses acting in tropical tree species. In one species, leaf damage was increased by increasing soil Si and in four species, no effect of soil Si on leaf damage was observed. Opposite to our expectation of Si uptake and defense being inducible by herbivory damage, simulated herbivory increased leaf damage in two species. Furthermore, simulated herbivory reduced Si concentrations in one species. Our results showed that tropical tree seedlings can be better defended when growing in Si-rich compared to Si-poor soils, and that the effects of Si on plant defense vary strongly across species. Furthermore, Si-based defenses may not be inducible in tropical tree species. Overall, constitutive Si-based defense should be considered part of the vast array of anti-herbivore defenses of tropical tree species. Our finding that Si-based defenses are highly species-specific combined with the fact that herbivory is a major driver of mortality in tropical tree seedling, suggests that variation in soil Si concentrations may have pervasive consequences for regeneration and performance across tropical tree species.
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Affiliation(s)
- Marius Klotz
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
- Deptartment of Plant Ecology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany
| | - Jörg Schaller
- Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
| | - Bettina M. J. Engelbrecht
- Deptartment of Plant Ecology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany
- Smithsonian Tropical Research Institute (STRI), Balboa, Panama
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19
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Bragunde G, Groba HF, Lagurara P, Martínez G, González A, Rossini C. Correlating Eucalyptus leaf metabolomics with preference of the bronze bug, Thaumastocoris peregrinus. J Chem Ecol 2023; 49:482-497. [PMID: 37523036 DOI: 10.1007/s10886-023-01435-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/11/2023] [Accepted: 05/17/2023] [Indexed: 08/01/2023]
Abstract
Eucalyptus species are among the most planted trees in forestry production, an ever-increasing commercial activity worldwide. Forestry expansion demands a continuous search for preventive and sanitary measures against pests and diseases. Massive application of phytosanitary products is incompatible with the forestry sector, so forest health management must be based on other principles. In this context, studies on insect plant relationships mediated by plant metabolites may contribute information relevant to plant resistance and genotype selection. In this study, we analyzed the leaf metabolome of four Eucalyptus species commonly planted in southern South America, to correlate this chemical information with feeding preference of Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae), an important pest of eucalypt plantations. Gas chromatography mass spectrometry analyses were performed on polar and non-polar leaf extracts from Eucalyptus globulus, Eucalyptus grandis, Eucalyptus robusta, and Eucalyptus tereticornis (Myrtaceae). Feeding preferences were assessed in two-choice laboratory bioassays resulting in a preference gradient of the four plant species. Moreover, a performance bioassay where we contrasted survival and development time between the most and least preferred plants, showed a clear correlation with preference both in survival and developmental time of the most susceptible nymph instar. We found that species with high or low feeding preferences differ significantly in several foliar metabolites, which may be acting as feeding stimulants or deterrents for T. peregrinus. These findings may provide useful criteria for choosing Eucalyptus genotypes when planting in bronze bug infested areas.
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Affiliation(s)
- G Bragunde
- Laboratorio de Ecología Química, Facultad de Química, Universidad de la República-Uruguay, Montevideo, Gral. Flores 2124, 11800, Uruguay
- Graduate Program in Chemistry, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - H F Groba
- Laboratorio de Ecología Química, Facultad de Química, Universidad de la República-Uruguay, Montevideo, Gral. Flores 2124, 11800, Uruguay
| | - P Lagurara
- Laboratorio de Ecología Química, Facultad de Química, Universidad de la República-Uruguay, Montevideo, Gral. Flores 2124, 11800, Uruguay
- Graduate Program in Chemistry, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - G Martínez
- Forestry Research System, Instituto Nacional de Investigación Agropecuaria, Tacuarembó, Uruguay
| | - A González
- Laboratorio de Ecología Química, Facultad de Química, Universidad de la República-Uruguay, Montevideo, Gral. Flores 2124, 11800, Uruguay
| | - C Rossini
- Laboratorio de Ecología Química, Facultad de Química, Universidad de la República-Uruguay, Montevideo, Gral. Flores 2124, 11800, Uruguay.
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20
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N’goka V, Oyegue Liabagui SL, Sima Obiang C, Begouabe H, Nsonde Ntandou GF, Imboumy-Limoukou RK, Biteghe-Bi-Essone JC, Kumulungui BS, Lekana-Douki JB, Abena AA. Pentaclethra eetveldeana Leaves from Four Congo-Brazzaville Regions: Antioxidant Capacity, Anti-Inflammatory Activity and Proportional Accumulation of Phytochemicals. PLANTS (BASEL, SWITZERLAND) 2023; 12:3271. [PMID: 37765435 PMCID: PMC10535678 DOI: 10.3390/plants12183271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 09/29/2023]
Abstract
Oxidative stress and inflammation play a key role in the occurrence of neurodegenerative diseases. Traditionally, Pentaclethra eetveldeana leaves are used in dementia treatment. Therefore, this study aimed to evaluate the antioxidant and anti-inflammatory activities as well as the phytochemical composition of Pentaclethra eetveldeana leaves from four Congo-Brazzaville regions. The 1.2-diphenyl-1-picrylhydrazyl radical-scavenging, β-carotene bleaching and molybdenum reduction assays were used to assess the antioxidant activity. The protein denaturation and erythrocyte membrane stabilization tests were used to analyze the anti-inflammatory activity. Phytochemical screening, the quantification of polyphenols by spectrophotometry, as well as the determination of extraction yields were carried out. It was found that the extracts reduced molybdenum; furthermore, compared to ascorbic acid, they showed better antiradical activity and inhibited lipid peroxidation. Moreover, globally, the membrane-stabilizing power of the aqueous extracts was superior or comparable to diclofenac, while the same extracts were less effective for the inhibition of denaturation. All of the aqueous extracts contained polyphenols, saponins, alkaloids, anthraquinones, reducing sugar and cardiotonic glycosides. The total polyphenols, tannins and proanthocyanidins are produced proportionally from one region to another. Finally, the leaves from Brazzaville and Boundji contain flavonols, while those from Makoua and Owando contain flavones. Thus, Pentaclethra eetveldeana leaves contribute to traditional dementia treatment through their antioxidant and anti-inflammatory properties.
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Affiliation(s)
- Victor N’goka
- Laboratoire de Pharmacodynamie et de Physiopathologie Expérimentale (L2PE), Faculté des Sciences et Techniques, Université Marien Ngouabi (UMNG), Brazzaville BP 69, Congo
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
| | - Sandrine Lydie Oyegue Liabagui
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
- Département de Biologie, Faculté des Sciences, Université des Sciences et Techniques de Masuku (USTM), Franceville BP 876, Gabon
- Ecole Doctorale Régionale d’Afrique Centrale en Infectiologie Tropicale (ECODRAC), Université des Sciences et Techniques de Masuku (USTM), Franceville BP 876, Gabon
| | - Cédric Sima Obiang
- Laboratoire de Recherches en Biochimie (LAREBIO), Faculté des Sciences, Université des Sciences et Techniques de Masuku (USTM), Franceville BP 876, Gabon
| | - Herman Begouabe
- Laboratoire de Recherches en Biochimie (LAREBIO), Faculté des Sciences, Université des Sciences et Techniques de Masuku (USTM), Franceville BP 876, Gabon
| | - Gelase Fredy Nsonde Ntandou
- Laboratoire de Pharmacodynamie et de Physiopathologie Expérimentale (L2PE), Faculté des Sciences et Techniques, Université Marien Ngouabi (UMNG), Brazzaville BP 69, Congo
| | - Romeo Karl Imboumy-Limoukou
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
| | - Jean-Claude Biteghe-Bi-Essone
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
| | - Brice Serge Kumulungui
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
| | - Jean Bernard Lekana-Douki
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
- Département de Parasitologie-Mycologie Médecine Tropicale, Faculté de Médecine, Université des Sciences de la Santé (USS), Libreville BP 4009, Gabon
| | - Ange Antoine Abena
- Laboratoire de Biochimie et de Pharmacologie (LBP), Faculté des Sciences de la Santé, Université Marien Ngouabi (UMNG), Brazzaville BP 69, Congo
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21
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Pérez-Ochoa ML, Vera-Guzmán AM, Mondragón-Chaparro DM, Sandoval-Torres S, Carrillo-Rodríguez JC, Mayek-Pérez N, Chávez-Servia JL. Effects of Annual Growth Conditions on Phenolic Compounds and Antioxidant Activity in the Roots of Eryngium montanum. PLANTS (BASEL, SWITZERLAND) 2023; 12:3192. [PMID: 37765355 PMCID: PMC10537384 DOI: 10.3390/plants12183192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/02/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023]
Abstract
Medicinal plants grown in natural settings are exposed to different adverse environmental conditions that determine their growth and development as well as the composition and concentration of secondary metabolites in their organs. The objective of this study was to evaluate the effects of environmental conditions associated with localities and annual growth cycles on the contents of phenolic compounds and flavonoids, antioxidant activity and potentially bioactive phenolic acids in the roots of Eryngium montanum, a medicinal species from temperate Mexico. The samples for composition analysis were collected using a bifactorial design: Factor A consisted of the localities (Morelos and La Unión de San Martin Huamelulpam, Mexico) and Factor B was represented by the annual growth cycle (2020 and 2021). In each sample, the contents of polyphenols and equivalent flavonoids of quercetin and catechin and antioxidant activity were evaluated using spectrophotometry. Subsequently, chlorogenic, caffeic and rosmarinic acids were identified and quantified using high-performance liquid chromatography with diode-array detection (HPLC-DAD). The annual growth conditions and, to a lesser extent, the locality of origin of the samples significantly influenced the contents of phenolic compounds and antioxidant activity. The environmental conditions that occurred in 2021 favored an increase in the contents of phenolic compounds compared to those in 2020, and the same pattern was observed for chlorogenic acid; however, for caffeic and rosmarinic acids, the opposite pattern was observed. The content of phenolic acids in the roots of E. montanum follows different and independent patterns between cycles based on the interaction between the locality of origin and annual growth cycle. This study quantifies the magnitude of the total environmental effect on the phenolic compound concentrations in E. montanum roots, which was measured via sampling during two annual growth cycles, where the sampling locations factor had little influence. The bioactive compounds identified in E. montanum roots have the potential for use as alternative medicines, as mentioned by different families from Oaxaca, Mexico.
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Affiliation(s)
- Mónica L. Pérez-Ochoa
- CIIDIR-Oaxaca, Instituto Politécnico Nacional, Gustavo A. Madero, Ciudad de Mexico 07320, Mexico; (M.L.P.-O.); (D.M.M.-C.); (S.S.-T.)
| | - Araceli M. Vera-Guzmán
- CIIDIR-Oaxaca, Instituto Politécnico Nacional, Gustavo A. Madero, Ciudad de Mexico 07320, Mexico; (M.L.P.-O.); (D.M.M.-C.); (S.S.-T.)
| | - Demetria M. Mondragón-Chaparro
- CIIDIR-Oaxaca, Instituto Politécnico Nacional, Gustavo A. Madero, Ciudad de Mexico 07320, Mexico; (M.L.P.-O.); (D.M.M.-C.); (S.S.-T.)
| | - Sadoth Sandoval-Torres
- CIIDIR-Oaxaca, Instituto Politécnico Nacional, Gustavo A. Madero, Ciudad de Mexico 07320, Mexico; (M.L.P.-O.); (D.M.M.-C.); (S.S.-T.)
| | | | | | - José L. Chávez-Servia
- CIIDIR-Oaxaca, Instituto Politécnico Nacional, Gustavo A. Madero, Ciudad de Mexico 07320, Mexico; (M.L.P.-O.); (D.M.M.-C.); (S.S.-T.)
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22
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Kaur A, Kaur S, Singh HP, Batish DR. Is intraspecific trait differentiation in Parthenium hysterophorus a consequence of hereditary factors and/or phenotypic plasticity? PLANT DIVERSITY 2023; 45:611-620. [PMID: 37936811 PMCID: PMC10625975 DOI: 10.1016/j.pld.2022.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 06/03/2022] [Accepted: 09/02/2022] [Indexed: 11/09/2023]
Abstract
Of the various strategies adopted by an invasive plant species for expanding its niche breadth, phenotypic differentiation (either due to plasticity and/or adaptive evolution) is proven to be the most successful. Lately, we studied the persistence of substantial morpho-functional variations within the individuals of alien invasive plant, Parthenium hysterophorus in Chandigarh, India, through field surveys. Based on observed differences, the individuals were categorized into two morphotypes, PA and PB. PA had higher leaf area, leaf biomass, and chlorophyll content as compared with PB. However, PB had a higher stem circumference, stem specific density, twig dry matter content, profuse branching, bigger canopy, and better reproductive output than PA. To substantiate the persistence of intraspecific variations in P. hysterophorus and to deduce the possible genesis of these variations, we propagated both the morphotypes under experimental conditions in winter and summer. Apart from the key morpho-functional differences observed during the field studies, protein and carbohydrate metabolism were studied in leaves and roots of the propagated plants. Differences in plant metabolism were observed only during the early growth period, whereas the morpho-functional traits varied in the mature flowering plants. The effect of growth season was highly significant on all the studied morpho-functional and biochemical parameters (p ≤ 0.05). Parent morphotypes (P) and interactions between morphotypes and seasons significantly affected several growth parameters (p ≤ 0.05). The analyses revealed that the contrasting growth conditions at the time of transplantation and early growth may regulate the phenotype of P. hysterophorus. The pattern of intraspecific variations observed during the study is justified to consider morphotype PA as winter biotype and morphotype PB as summer biotype of P. hysterophorus. The study points towards the role of plasticity or a combination of genetic and environmental (G × E) factors in producing the phenotypic variability observed in the population of P. hysterophorus.
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Affiliation(s)
- Amarpreet Kaur
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Shalinder Kaur
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Harminder Pal Singh
- Department of Environment Studies, Panjab University, Chandigarh 160014, India
| | - Daizy R. Batish
- Department of Botany, Panjab University, Chandigarh 160014, India
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23
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Long ZG, Le JV, Katz BB, Lopez BG, Tenenbaum ED, Semmling B, Schmidt RJ, Grün F, Butts CT, Martin RW. Spatially resolved detection of small molecules from press-dried plant tissue using MALDI imaging. APPLICATIONS IN PLANT SCIENCES 2023; 11:e11539. [PMID: 37915436 PMCID: PMC10617318 DOI: 10.1002/aps3.11539] [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: 11/02/2022] [Revised: 03/30/2023] [Accepted: 04/04/2023] [Indexed: 11/03/2023]
Abstract
Premise Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) is a chemical imaging method that can visualize spatial distributions of particular molecules. Plant tissue imaging has so far mostly used cryosectioning, which can be impractical for the preparation of large-area imaging samples, such as full flower petals. Imaging unsectioned plant tissue presents its own difficulties in extracting metabolites to the surface due to the waxy cuticle. Methods We address this by using established delipidation techniques combined with a solvent vapor extraction prior to applying the matrix with many low-concentration sprays. Results Using this procedure, we imaged tissue from three different plant species (two flowers and one carnivorous plant leaf). Material factorization analysis of the resulting data reveals a wide range of plant-specific small molecules with varying degrees of localization to specific portions of the tissue samples, while facilitating detection and removal of signal from background sources. Conclusions This work demonstrates applicability of MALDI-MSI to press-dried plant samples without freezing or cryosectioning, setting the stage for spatially resolved molecule identification. Increased mass resolution and inclusion of tandem mass spectrometry are necessary next steps to allow more specific and reliable compound identification.
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Affiliation(s)
- Zane G. Long
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
| | - Jonathan V. Le
- Department of Molecular Biology and BiochemistryUniversity of CaliforniaIrvineCalifornia92697‐3900USA
| | - Benjamin B. Katz
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
| | - Belen G. Lopez
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
| | | | - Bonnie Semmling
- The Chrysler Herbarium and Mycological Collection, School of Environmental and Biological SciencesRutgers UniversityNew BrunswickNew Jersey08901USA
| | - Ryan J. Schmidt
- Department of Ecology, Evolution, and Natural ResourcesRutgers UniversityNew BrunswickNew Jersey08901USA
| | - Felix Grün
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
| | - Carter T. Butts
- Departments of Sociology, Statistics, Computer Science, and Electrical Engineering and Computer ScienceUniversity of CaliforniaIrvineCalifornia92697USA
| | - Rachel W. Martin
- Department of ChemistryUniversity of CaliforniaIrvineCalifornia92697‐2025USA
- Department of Molecular Biology and BiochemistryUniversity of CaliforniaIrvineCalifornia92697‐3900USA
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24
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Burton GP, Prescott TAK, Fang R, Lee MA. Regional variation in the antibacterial activity of a wild plant, wild garlic (Allium ursinum L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 202:107959. [PMID: 37619271 DOI: 10.1016/j.plaphy.2023.107959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/17/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023]
Abstract
Antibacterial activity is a common and highly studied property of plant secondary metabolites. Despite the extensive literature focusing on identifying novel antibacterial metabolites, little work has been undertaken to examine variation in levels of antibacterial activity in any plant species. Here, we used large-scale sampling of leaves of the antibacterial plant, wild garlic (Allium ursinum L.), assembling a set of tissue extracts from 168 plants, with 504 leaves collected and analysed. We assayed extracts for antibacterial activity against Bacillus subtilis and used LC-MS to carry out a chemometric analysis examining variation in individual metabolites, comparing them with several ecological parameters. We found that allicin was the only metabolite which was positively related to antibacterial activity. Soil temperature was a key determinant of variability in the concentrations of many foliar metabolites, however, neither allicin concentrations nor antibacterial activity was related to any of our measured ecological parameters, other than roadside proximity. We suggest that the synthesis of allicin precursors may be largely independent of growing conditions. This may be to ensure that allicin is synthesised rapidly and in sufficiently high concentrations to effectively prevent herbivory and pest damage. This finding contrasts with flavonoids which were found to vary greatly between plants and across sites. Our findings suggest that key biologically active metabolites are constrained in their concentration range compared to other compounds in the metabolome. This has important implications for the development of wild garlic as a health supplement or animal feed additive.
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Affiliation(s)
- George P Burton
- Royal Botanic Gardens Kew, Richmond, TW9 3AB, UK; Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | | | - Rui Fang
- Royal Botanic Gardens Kew, Richmond, TW9 3AB, UK
| | - Mark A Lee
- Department of Health Studies, Royal Holloway, University of London, Egham, TW20 0EX, UK.
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25
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Buyel JF. Product safety aspects of plant molecular farming. Front Bioeng Biotechnol 2023; 11:1238917. [PMID: 37614627 PMCID: PMC10442644 DOI: 10.3389/fbioe.2023.1238917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 07/31/2023] [Indexed: 08/25/2023] Open
Abstract
Plant molecular farming (PMF) has been promoted since the 1990s as a rapid, cost-effective and (most of all) safe alternative to the cultivation of bacteria or animal cells for the production of biopharmaceutical proteins. Numerous plant species have been investigated for the production of a broad range of protein-based drug candidates. The inherent safety of these products is frequently highlighted as an advantage of PMF because plant viruses do not replicate in humans and vice versa. However, a more nuanced analysis of this principle is required when considering other pathogens because toxic compounds pose a risk even in the absence of replication. Similarly, it is necessary to assess the risks associated with the host system (e.g., the presence of toxic secondary metabolites) and the production approach (e.g., transient expression based on bacterial infiltration substantially increases the endotoxin load). This review considers the most relevant host systems in terms of their toxicity profile, including the presence of secondary metabolites, and the risks arising from the persistence of these substances after downstream processing and product purification. Similarly, we discuss a range of plant pathogens and disease vectors that can influence product safety, for example, due to the release of toxins. The ability of downstream unit operations to remove contaminants and process-related toxic impurities such as endotoxins is also addressed. This overview of plant-based production, focusing on product safety aspects, provides recommendations that will allow stakeholders to choose the most appropriate strategies for process development.
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Affiliation(s)
- J. F. Buyel
- Department of Biotechnology (DBT), Institute of Bioprocess Science and Engineering (IBSE), University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
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26
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Siqueira CS, Dos Santos VS, Carollo CA, Damasceno-Junior GA. Unraveling the adaptive chemical traits of Rhamnidium elaeocarpum Reissek in response to fire in pantanal wetlands. Sci Rep 2023; 13:11860. [PMID: 37481615 PMCID: PMC10363117 DOI: 10.1038/s41598-023-38725-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/13/2023] [Indexed: 07/24/2023] Open
Abstract
We conducted a study on the effects of fire on Rhamnidium elaeocarpum, a widely distributed woody species found in the Pantanal wetlands, using LC-MS metabolomics, total phenolic and tannin content analysis, and thermogravimetric behavior. We sampled individuals from four groups: No Fire, Fire 2019, Fire 2020, and APD 20 (individuals whose aerial parts had died during the 2020 fire event). We found that recent fires had no significant impact on the species' phenolic metabolism except for those in the fourth group. These specimens showed a decline in secondary metabolites due to leaching. The high levels of phenolics in R. elaeocarpum suggest that this species has a biochemical tolerance to the stress caused by seasonal fires. Metabolomic profiling revealed the presence of proanthocyanidin oligomers, which protect against oxidative stress and post-fire environmental disturbances. However, the passage of fire also led to a high incidence of toxic karwinaphthopyranone derivatives, which could be a concern for the species' medicinal use. Finally, the thermogravimetric analysis showed that the species is thermotolerant, with an intrinsic relationship between the secondary compounds and thermotolerance. Our research has deepened the comprehension of how fire affects the metabolic processes of woody plants. The challenge now lies in determining if the identified chemical changes are adaptive characteristics that evolved over time or merely transient responses to external environmental stimuli.
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Affiliation(s)
- Camila Sório Siqueira
- Programa de Pós-Graduação Em Biologia Vegetal, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
- Laboratório de Produtos Naturais e Espectrometria de Massas (LAPNEM), Faculdade Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Vanessa Samúdio Dos Santos
- Laboratório de Produtos Naturais e Espectrometria de Massas (LAPNEM), Faculdade Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Carlos Alexandre Carollo
- Laboratório de Produtos Naturais e Espectrometria de Massas (LAPNEM), Faculdade Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil.
| | - Geraldo Alves Damasceno-Junior
- Laboratório de Ecologia Vegetal, Instituto de Biociências (INBIO), Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
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27
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Dussarrat T, Schweiger R, Ziaja D, Nguyen TTN, Krause L, Jakobs R, Eilers EJ, Müller C. Influences of chemotype and parental genotype on metabolic fingerprints of tansy plants uncovered by predictive metabolomics. Sci Rep 2023; 13:11645. [PMID: 37468576 DOI: 10.1038/s41598-023-38790-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023] Open
Abstract
Intraspecific plant chemodiversity shapes plant-environment interactions. Within species, chemotypes can be defined according to variation in dominant specialised metabolites belonging to certain classes. Different ecological functions could be assigned to these distinct chemotypes. However, the roles of other metabolic variation and the parental origin (or genotype) of the chemotypes remain poorly explored. Here, we first compared the capacity of terpenoid profiles and metabolic fingerprints to distinguish five chemotypes of common tansy (Tanacetum vulgare) and depict metabolic differences. Metabolic fingerprints captured higher variation in metabolites while preserving the ability to define chemotypes. These differences might influence plant performance and interactions with the environment. Next, to characterise the influence of the maternal origin on chemodiversity, we performed variation partitioning and generalised linear modelling. Our findings revealed that maternal origin was a higher source of chemical variation than chemotype. Predictive metabolomics unveiled 184 markers predicting maternal origin with 89% accuracy. These markers included, among others, phenolics, whose functions in plant-environment interactions are well established. Hence, these findings place parental genotype at the forefront of intraspecific chemodiversity. We recommend considering this factor when comparing the ecology of various chemotypes. Additionally, the combined inclusion of inherited variation in main terpenoids and other metabolites in computational models may help connect chemodiversity and evolutionary principles.
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Affiliation(s)
- Thomas Dussarrat
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany.
| | - Rabea Schweiger
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Dominik Ziaja
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Thuan T N Nguyen
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Liv Krause
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Ruth Jakobs
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Elisabeth J Eilers
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
- CTL GmbH Bielefeld, Krackser Straße 12, 33659, Bielefeld, Germany
| | - Caroline Müller
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany.
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28
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Li X, Shi Y, Lin X, Li Z, Xiao J, Yang X. Effects of wild, local, and cultivated tobacco varieties on the performance of Spodoptera litura and its parasitoid Meteorus pulchricornis. PEST MANAGEMENT SCIENCE 2023; 79:2390-2396. [PMID: 36802371 DOI: 10.1002/ps.7416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 02/11/2023] [Accepted: 02/21/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Plant domestication can alter plant and insect interactions and influence bottom-up and top-down effects. However, little is known about the effects of wild, local, and cultivated varieties of the same plant species in the same region on herbivores and their parasitoids. Here, six tobacco varieties were selected: wild Bishan and Badan tobaccos, local Liangqiao and Shuangguan sun-cured tobaccos, and cultivated Xiangyan 5 and Cunsanpi. We examined how wild, local, and cultivated tobacco types affect the tobacco cutworm herbivore Spodoptera litura and its parasitoid Meteorus pulchricornis. RESULTS Levels of nicotine and trypsin protease inhibitor in leaves and the fitness of S. litura larvae varied significantly among the varieties. Wild tobacco had the highest levels of nicotine and trypsin protease inhibitor, which reduced the survival rate and prolonged the development period of S. litura. The tobacco types significantly influenced the life history parameters and host selection of M. pulchricornis. The cocoon weight, cocoon emergence rate, adult longevity, hind tibia length, and offspring fecundity of M. pulchricornis increased, whereas the development period decreased from wild to local to cultivated varieties. The parasitoids were more likely to select wild and local varieties than cultivated varieties. CONCLUSION Domestication of tobacco resulted in reduced resistance to S. litura in cultivated tobacco. Wild tobacco varieties suppress S. litura populations, adversely affect M. pulchricornis, and may enhance bottom-up and top-down control of S. litura. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xiaohong Li
- Department of Landscape Architecture, College of Agriculture and Forestry Ecology, Shaoyang University, Shaoyang, China
| | - Yimeng Shi
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang, China
| | - XuanXuan Lin
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang, China
| | - Zhezhi Li
- Department of Landscape Architecture, College of Agriculture and Forestry Ecology, Shaoyang University, Shaoyang, China
| | - Jiawei Xiao
- Department of Landscape Architecture, College of Agriculture and Forestry Ecology, Shaoyang University, Shaoyang, China
| | - Xianjun Yang
- Department of Landscape Architecture, College of Agriculture and Forestry Ecology, Shaoyang University, Shaoyang, China
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Eckert S, Eilers EJ, Jakobs R, Anaia RA, Aragam KS, Bloss T, Popp M, Sasidharan R, Schnitzler JP, Stein F, Steppuhn A, Unsicker SB, van Dam NM, Yepes S, Ziaja D, Müller C. Inter-laboratory comparison of plant volatile analyses in the light of intra-specific chemodiversity. Metabolomics 2023; 19:62. [PMID: 37351733 DOI: 10.1007/s11306-023-02026-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/09/2023] [Indexed: 06/24/2023]
Abstract
INTRODUCTION Assessing intraspecific variation in plant volatile organic compounds (VOCs) involves pitfalls that may bias biological interpretation, particularly when several laboratories collaborate on joint projects. Comparative, inter-laboratory ring trials can inform on the reproducibility of such analyses. OBJECTIVES In a ring trial involving five laboratories, we investigated the reproducibility of VOC collections with polydimethylsiloxane (PDMS) and analyses by thermal desorption-gas chromatography-mass spectrometry (TD-GC-MS). As model plant we used Tanacetum vulgare, which shows a remarkable diversity in terpenoids, forming so-called chemotypes. We performed our ring-trial with two chemotypes to examine the sources of technical variation in plant VOC measurements during pre-analytical, analytical, and post-analytical steps. METHODS Monoclonal root cuttings were generated in one laboratory and distributed to five laboratories, in which plants were grown under laboratory-specific conditions. VOCs were collected on PDMS tubes from all plants before and after a jasmonic acid (JA) treatment. Thereafter, each laboratory (donors) sent a subset of tubes to four of the other laboratories (recipients), which performed TD-GC-MS with their own established procedures. RESULTS Chemotype-specific differences in VOC profiles were detected but with an overall high variation both across donor and recipient laboratories. JA-induced changes in VOC profiles were not reproducible. Laboratory-specific growth conditions led to phenotypic variation that affected the resulting VOC profiles. CONCLUSION Our ring trial shows that despite large efforts to standardise each VOC measurement step, the outcomes differed both qualitatively and quantitatively. Our results reveal sources of variation in plant VOC research and may help to avoid systematic errors in similar experiments.
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Affiliation(s)
- Silvia Eckert
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany
| | - Elisabeth J Eilers
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany
| | - Ruth Jakobs
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany
| | - Redouan Adam Anaia
- Institute of Biodiversity, Friedrich Schiller University Jena, Jena, Germany
- Molecular Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | | | - Tanja Bloss
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany
| | - Moritz Popp
- Research Unit Environmental Simulation, Helmholtz Zentrum München, Munich, Germany
| | - Rohit Sasidharan
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany
| | | | - Florian Stein
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Anke Steppuhn
- Department of Molecular Botany, Hohenheim University, Stuttgart, Germany
| | - Sybille B Unsicker
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Nicole M van Dam
- Institute of Biodiversity, Friedrich Schiller University Jena, Jena, Germany
- Molecular Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Leibniz Institute of Vegetable and Ornamental Crops, Großbeeren, Germany
| | - Sol Yepes
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Dominik Ziaja
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany
| | - Caroline Müller
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany.
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Popović Z, Vidaković V, Mijalković T, Krstić-Milošević D. Population-Related Variability in Qualitative and Quantitative Secondary Metabolite Profile of Gentianella austriaca (A. & J. Kern.) Holub. PLANTS (BASEL, SWITZERLAND) 2023; 12:2434. [PMID: 37446995 DOI: 10.3390/plants12132434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 05/30/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023]
Abstract
Phytochemical profiling of six natural populations of Gentianella austriaca was performed by HPLC identification and quantification of a number of secondary metabolites, and evaluation of time series of peak areas by chemometric analysis. Phytochemical analysis of G. austriaca revealed the presence of iridoids, flavone-C-glucosides and xanthones. Twelve secondary metabolites were identified in the aerial parts, roots and seeds, including swertiamarin (SWM), gentiopicrin (GP), sweroside (SWZ), isoorientin (ISOOR), swertisin (SWE), demethylbellidifolin-8-O-glucoside (DMB-8-O-glc), bellidifolin-8-O-glucoside (BDF-8-O-glc), mangiferin (MGF), corymbiferin (CBF), corymbiferin-1-O-glucoside (CBF-1-O-glc), bellidifolin (BDF) and campestroside. Multivariate statistical analyses showed relatively low variability among populations according to secondary metabolite content. However, some pharmacologically important compounds were found in higher amounts in a few populations, which could be useful for conservation and future biotechnological procedures.
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Affiliation(s)
- Zorica Popović
- Department of Ecology, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
| | - Vera Vidaković
- Department of Ecology, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
| | - Tatjana Mijalković
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
| | - Dijana Krstić-Milošević
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
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Docimo T, D’Amelia V, Piccinelli AL. Editorial: The chemo-biological language of plants: exploring the diversity of specialized metabolites. FRONTIERS IN PLANT SCIENCE 2023; 14:1226864. [PMID: 37409288 PMCID: PMC10319101 DOI: 10.3389/fpls.2023.1226864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 06/05/2023] [Indexed: 07/07/2023]
Affiliation(s)
- Teresa Docimo
- National Research Council, Institute of Bioscience and Bioresources, Portici, Italy
| | - Vincenzo D’Amelia
- National Research Council, Institute of Bioscience and Bioresources, Portici, Italy
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Wasihun Y, Alekaw Habteweld H, Dires Ayenew K. Antibacterial activity and phytochemical components of leaf extract of Calpurnia aurea. Sci Rep 2023; 13:9767. [PMID: 37328478 PMCID: PMC10275858 DOI: 10.1038/s41598-023-36837-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 06/11/2023] [Indexed: 06/18/2023] Open
Abstract
Local Ethiopians use Calpurnia aurea to treat skin infections. However, there is no adequate scientific confirmation. The aim of this study was to evaluate the antibacterial activities of the crude and the fractionated extracts of C. aurea leaves against different bacterial strains. The crude extract was made by maceration. The Soxhlet extraction method was used to obtain fractional extracts. The antibacterial activity against gram positive and gram negative American Type Culture Collection (ATCC) strains was performed using the agar diffusion technique. The minimum inhibitory concentration was determined through the microtiter broth dilution method. Preliminary phytochemical screening was done using standard techniques. The largest yield was obtained from ethanol fractional extract. Except for chloroform, which provided a relatively low yield when compared to petroleum ether, increasing the polarity of the extracting solvent improved the yield. The crude extract, solvent fractions, and the positive control showed inhibitory zone diameter, while the negative control did not. When used at a concentration of 75 mg/ml, the crude extract had similar antibacterial effects as gentamicin (0.1 mg/ml) and the ethanol fraction. The 2.5 mg/ml crude ethanol extract of C. aurea suppressed the growth of Pseudomonas aeruginosa, Streptococcus pneumoniae, and Staphylococcus aureus, according to the MIC values. The extract of C. aurea was more effective in inhibiting P. aeruginosa than the other gram-negative bacteria. Fractionation enhanced the antibacterial effect of the extract. All fractionated extracts showed the highest inhibition zone diameter against S. aureus. Petroleum ether extract had the greatest inhibition zone diameter against all bacterial strains. The non-polar components were more active compared to the more polar fractions. The phytochemical components discovered in the leaves of C. aurea included alkaloids, flavonoids, saponins, and tannins. Among these, the tannin content was remarkably high. The current results could provide a rational support for the traditional use of C. aurea to treat skin infections.
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Affiliation(s)
- Yared Wasihun
- Department of Internal Medicine, Ras Desta Damtew Memorial Hospital, Addis Ababa, Ethiopia
| | | | - Kassahun Dires Ayenew
- Department of Pharmacy, Asrat Woldeyes Health Science Campus, Debre Berhan University, Debre Berhan, Ethiopia.
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Xu Z, Ullah N, Duan Y, Hou Z, Liu A, Xu L. Editorial: Plant secondary metabolites and their effects on environmental adaptation based on functional genomics. Front Genet 2023; 14:1211639. [PMID: 37260776 PMCID: PMC10227598 DOI: 10.3389/fgene.2023.1211639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 05/10/2023] [Indexed: 06/02/2023] Open
Affiliation(s)
- Zishu Xu
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Najeeb Ullah
- Agricultural Research Station, Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
| | - Yi Duan
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Zhuoni Hou
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Ake Liu
- Department of Life Sciences, Changzhi University, Changzhi, China
| | - Ling Xu
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
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34
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Glassmire AE, Carson WP, Smilanich AM, Richards LA, Jeffrey CS, Dodson CD, Philbin CS, Humberto GL, Dyer LA. Multiple and contrasting pressures determine intraspecific phytochemical variation in a tropical shrub. Oecologia 2023; 201:991-1003. [PMID: 37042994 DOI: 10.1007/s00442-023-05364-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 03/12/2023] [Indexed: 04/13/2023]
Abstract
Intraspecific phytochemical variation across a landscape can cascade up trophic levels, potentially mediating the composition of entire insect communities. Surprisingly, we have little understanding of the processes that regulate and maintain phytochemical variation within species, likely because these processes are complex and operate simultaneously both temporally and spatially. To assess how phytochemistry varies within species, we tested the degree to which resource availability, contrasting soil type, and herbivory generate intraspecific chemical variation in growth and defense of the tropical shrub, Piper imperiale (Piperaceae). We quantified changes in both growth (e.g., nutritional protein, above- and below-ground biomass) and defense (e.g., imide chemicals) of individual plants using a well-replicated fully factorial shade-house experiment in Costa Rica. We found that plants grown in high light, nutrient- and richer old alluvial soil had increased biomass. High light was also important for increasing foliar protein. Thus, investment into growth was determined by resource availability and soil composition. Surprisingly, we found that chemical defenses decreased in response to herbivory. We also found that changes in plant protein were more plastic compared to plant defense, indicating that constitutive defenses may be relatively fixed, and thus an adaptation to chronic herbivory that is common in tropical forests. We demonstrate that intraspecific phytochemical variation of P. imperiale is shaped by resource availability from light and soil type. Because environmental heterogeneity occurs over small spatial scales (tens of meters), herbivores may be faced with a complex phytochemical landscape that may regulate how much damage any individual plant sustains.
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Affiliation(s)
- Andrea E Glassmire
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA.
| | - Walter P Carson
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Lora A Richards
- Department of Biology, University of Nevada, Reno, Reno, NV, USA
- Hitchcock Center for Chemical Ecology, University of Nevada, Reno, Reno, NV, USA
| | - Christopher S Jeffrey
- Hitchcock Center for Chemical Ecology, University of Nevada, Reno, Reno, NV, USA
- Department of Chemistry, University of Nevada, Reno, Reno, NV, USA
| | - Craig D Dodson
- Hitchcock Center for Chemical Ecology, University of Nevada, Reno, Reno, NV, USA
- Department of Chemistry, University of Nevada, Reno, Reno, NV, USA
| | - Casey S Philbin
- Hitchcock Center for Chemical Ecology, University of Nevada, Reno, Reno, NV, USA
- Department of Chemistry, University of Nevada, Reno, Reno, NV, USA
| | - Garcia L Humberto
- Organization for Tropical Studies, La Selva Research Station, Costa Rica, USA
| | - Lee A Dyer
- Department of Biology, University of Nevada, Reno, Reno, NV, USA
- Hitchcock Center for Chemical Ecology, University of Nevada, Reno, Reno, NV, USA
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Liu C, Smit SJ, Dang J, Zhou P, Godden GT, Jiang Z, Liu W, Liu L, Lin W, Duan J, Wu Q, Lichman BR. A chromosome-level genome assembly reveals that a bipartite gene cluster formed via an inverted duplication controls monoterpenoid biosynthesis in Schizonepeta tenuifolia. MOLECULAR PLANT 2023; 16:533-548. [PMID: 36609143 DOI: 10.1016/j.molp.2023.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/06/2022] [Accepted: 01/04/2023] [Indexed: 06/09/2023]
Abstract
Biosynthetic gene clusters (BGCs) are regions of a genome where genes involved in a biosynthetic pathway are in proximity. The origin and evolution of plant BGCs as well as their role in specialized metabolism remain largely unclear. In this study, we have assembled a chromosome-scale genome of Japanese catnip (Schizonepeta tenuifolia) and discovered a BGC that contains multiple copies of genes involved in four adjacent steps in the biosynthesis of p-menthane monoterpenoids. This BGC has an unprecedented bipartite structure, with mirrored biosynthetic regions separated by 260 kilobases. This bipartite BGC includes identical copies of a gene encoding an old yellow enzyme, a type of flavin-dependent reductase. In vitro assays and virus-induced gene silencing revealed that this gene encodes the missing isopiperitenone reductase. This enzyme evolved from a completely different enzyme family to isopiperitenone reductase from closely related Mentha spp., indicating convergent evolution of this pathway step. Phylogenomic analysis revealed that this bipartite BGC has emerged uniquely in the S. tenuifolia lineage and through insertion of pathway genes into a region rich in monoterpene synthases. The cluster gained its bipartite structure via an inverted duplication. The discovered bipartite BGC for p-menthane biosynthesis in S. tenuifolia has similarities to the recently described duplicated p-menthane biosynthesis gene pairs in the Mentha longifolia genome, providing an example of the convergent evolution of gene order. This work expands our understanding of plant BGCs with respect to both form and evolution, and highlights the power of BGCs for gene discovery in plant biosynthetic pathways.
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Affiliation(s)
- Chanchan Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
| | - Samuel J Smit
- Centre for Novel Agricultural Products, Department of Biology, University of York, York YO10 5DD, UK
| | - Jingjie Dang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
| | - Peina Zhou
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
| | - Grant T Godden
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Zheng Jiang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wukun Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Licheng Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wei Lin
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China; Department of Pathogen Biology, School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jinao Duan
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qinan Wu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Benjamin R Lichman
- Centre for Novel Agricultural Products, Department of Biology, University of York, York YO10 5DD, UK.
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Labokas J, Karpavičienė B. On the Prospects of In Situ Conservation of Medicinal- and Aromatic-Plant Genetic Resources at Ancient-Hillfort Sites: A Case Study from Lithuania. PLANTS (BASEL, SWITZERLAND) 2023; 12:861. [PMID: 36840209 PMCID: PMC9967452 DOI: 10.3390/plants12040861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/10/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Twenty-three ancient-hillfort sites were investigated to evaluate the potential for the in situ conservation of medicinal- and aromatic-plant populations. An evaluation of the site's suitability was carried out by employing three major groups of criteria: species-specific, site-specific, and threat assessment. The species-specific criteria included the total species number, target species number, the cover-abundance of the target species estimated by mean Braun-Blanquet score, and, as an additional criterion, the number and cover-abundance of crop wild relatives. The site-specific criteria included site evaluation with respect to climatic region, the area size of a site, the habitat type, and the site's protection status. The threat assessment was focused on anthropogenic activities, such as recreational, agricultural, and others. The total number of vascular plant species inventoried was 264, including 82 species of medicinal and aromatic plants (MAP). There was a strong and highly significant correlation between the total and the MAP species numbers (rs = 0.77, p < 0.001), and the two most species-rich sites, Žuklijai and Pamiškė, contained the highest total and MAP species numbers. The investigated hillfort sites covered the populations of 49 species, or about 33% of the priority species list, with 5 or more populations. The most frequent species, Hypericum perforatum, occurred at 21 sites. The twenty-three hillfort sites represent three of the four climatic regions and six of the ten climatic subregions of Lithuania. Although these hillfort sites are quite small (1.24 ± 0.75 ha on average, without buffer zone), they are scattered across the country and are state-protected as archaeological objects, which makes them suitable for the in situ conservation of MAP genetic resources. In addition, seven hillfort sites (30.4% of the investigated ones) belong to the European network of special areas of conservation of habitats (Natura 2000), thus increasing their international importance. The threat assessment showed that anthropogenic activities (recreational, agricultural, etc.) are among the major factors affecting target-species populations.
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Radušienė J, Karpavičienė B, Raudone L, Vilkickyte G, Çırak C, Seyis F, Yayla F, Marksa M, Rimkienė L, Ivanauskas L. Trends in Phenolic Profiles of Achillea millefolium from Different Geographical Gradients. PLANTS (BASEL, SWITZERLAND) 2023; 12:746. [PMID: 36840094 PMCID: PMC9964219 DOI: 10.3390/plants12040746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/03/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
The traditional widely used raw material of Achillea millefolium is currently mainly derived from wild populations, leading to diversification and uncertainty in its quality. The aim of the study was to determine the accumulation differences of phenolic compounds between geographically distant populations of Achillea millefolium from northern and southern gradients. Plant material was collected from Gaziantep and Nevşehir provinces in Turkey and from wild populations in Lithuania. A complex of nine hydroxycinnamic acids and eleven flavonoids was identified and quantified in the methanolic extracts of inflorescences, leaves, and stems using the HPLC-PDA method. Caffeoylquinic acids predominated in leaves, while inflorescences tended to prevail in flavonoids. The PCA score plot model represented the quantitative distribution pattern of phenolic compounds along a geographical gradient of populations. The content of phenolic compounds in plant materials from northern latitudes was more than twice that of plants from southern latitudes. A significant correlation of individual phenolic compounds with latitude/longitude corresponded to their differences between two countries. Differences in accumulation of caffeoylquinic acids and flavonoids revealed several intraspecific groups within A. millefolium. Our findings suggest that spatial geographical data on the distribution of phenolic compounds in A. millefolium populations could be used as a tool to find potential collection sites for high-quality raw materials.
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Affiliation(s)
- Jolita Radušienė
- Laboratory of Economic Botany, Nature Research Centre, Akademijos Str. 2, 08412 Vilnius, Lithuania
| | - Birutė Karpavičienė
- Laboratory of Economic Botany, Nature Research Centre, Akademijos Str. 2, 08412 Vilnius, Lithuania
| | - Lina Raudone
- Department of Pharmacognosy, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania
- Laboratory of Biopharmaceutical Research, Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania
| | - Gabriele Vilkickyte
- Laboratory of Biopharmaceutical Research, Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania
| | - Cüneyt Çırak
- Vocational High School of Bafra, Ondokuz Mayis University, Samsun 55200, Turkey
| | - Fatih Seyis
- Department of Field Crops, Faculty of Agriculture and Natural Sciences, Recep Tayyip Erdoğan University, Rize 53100, Turkey
| | - Fatih Yayla
- Department of Biology, Faculty of Arts and Sciences, Gaziantep University, Gaziantep 27310, Turkey
| | - Mindaugas Marksa
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania
| | - Laura Rimkienė
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania
| | - Liudas Ivanauskas
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania
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Benazzouz-Smail L, Achat S, Brahmi F, Bachir-Bey M, Arab R, Lorenzo JM, Benbouriche A, Boudiab K, Hauchard D, Boulekbache L, Madani K. Biological Properties, Phenolic Profile, and Botanical Aspect of Nigella sativa L. and Nigella damascena L. Seeds: A Comparative Study. Molecules 2023; 28:molecules28020571. [PMID: 36677629 PMCID: PMC9863492 DOI: 10.3390/molecules28020571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/14/2022] [Accepted: 12/28/2022] [Indexed: 01/09/2023] Open
Abstract
The use of Nigella seeds in the food, pharmaceutical, and cosmetic fields is common, since the iniquity and the virtues of these plants are directly related to their characteristic phytochemical composition. This investigation focused on the comparative study of the botanical aspect, phenolic profile, and in vitro and in vivo biological activities of Nigella sativa L. (NS) and Nigella damascena L. (ND) seeds. The macro- and micro-morphological properties of these seeds were studied, and the key dissimilarities between them were clearly illustrated. The phytochemical contents and phenolic profiles were determined, and the in vitro antioxidant activity was assessed using four methods. The in vivo antioxidant and biochemical parameters of the blood of supplemented mice were determined. The results of the macro- and micro-structure analysis revealed differences between the two plants. Here, ND is characterized by higher phytochemical contents and the best antioxidant activities. The HPLC analysis indicated the presence of nine compounds, namely seven phenolic acids, particularly hydroxybenzoic and caffeic acids, and two flavonoids. The administration of ND extract to mice for 21 days at a concentration of 500 mg/kg allowed a substantial amelioration of plasma antioxidant properties. In addition, the extracts ameliorate blood parameters (cholesterol, triglycerides, glycemia, and urea). Furthermore, the antimicrobial activity of extracts demonstrated their effects on Staphylococcus and Aspergillus. Nigella seeds, in particular ND, expressed considerable in vitro antioxidant properties and demonstrated significant amelioration of mice blood properties. Consequently, these species can serve as a valuable source of compounds with various applications.
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Affiliation(s)
- Leila Benazzouz-Smail
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Sabiha Achat
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Fatiha Brahmi
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Mostapha Bachir-Bey
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Radia Arab
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - José Manuel Lorenzo
- Centro Tecnológico de la Carne de Galicia, Rúa Galicia Nº 4, Parque Tecnológico de Galicia, San Cibraodas Viñas, 32900 Ourense, Spain
- Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, 32004 Ourense, Spain
- Correspondence:
| | - Aicha Benbouriche
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Kahina Boudiab
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Didier Hauchard
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS UMR 6226, 13 Allée de Beaulieu, CS 50837, CEDEX 7, 35708 Rennes, France
| | - Lila Boulekbache
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Khodir Madani
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
- Centre de Recherche en Technologies Agro-Alimentaires, Route de Targa Ouzemour, Bejaia 06000, Algeria
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Paguet AS, Siah A, Lefèvre G, Moureu S, Cadalen T, Samaillie J, Michels F, Deracinois B, Flahaut C, Alves Dos Santos H, Etienne-Debaecker A, Rambaud C, Chollet S, Molinié R, Fontaine JX, Waterlot C, Fauconnier ML, Sahpaz S, Rivière C. Multivariate analysis of chemical and genetic diversity of wild Humulus lupulus L. (hop) collected in situ in northern France. PHYTOCHEMISTRY 2023; 205:113508. [PMID: 36370882 DOI: 10.1016/j.phytochem.2022.113508] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/23/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
The hop plant (Humulus lupulus L.) has been exploited for a long time for both its brewing and medicinal uses, due in particular to its specific chemical composition. These last years, hop cultivation that was in decline has been experiencing a renewal for several reasons, such as a craze for strongly hopped aromatic beers. In this context, the present work aims at investigating the genetic and chemical diversity of fifty wild hops collected from different locations in Northern France. These wild hops were compared to ten commercial varieties and three heirloom varieties cultivated in the same sampled geographical area. Genetic analysis relying on genome fingerprinting using 11 microsatellite markers showed a high level of diversity. A total of 56 alleles were determined with an average of 10.9 alleles per locus and assessed a significant population structure (mean pairwise FST = 0.29). Phytochemical characterization of hops was based on volatile compound analysis by HS-SPME GC-MS, quantification of the main prenylated phenolic compounds by UHPLC-UV as well as untargeted metabolomics by UHPLC-HRMS and revealed a high level of chemical diversity among the assessed wild accessions. In particular, analysis of volatile compounds revealed the presence of some minor but original compounds, such as aromadendrene, allo-aromadendrene, isoledene, β-guaiene, α-ylangene and β-pinene in some wild accessions; while analysis of phenolic compounds showed high content of β-acids in these wild accessions, up to 2.37% of colupulone. Genetic diversity of wild hops previously observed was hence supported by their chemical diversity. Sample soil analysis was also performed to get a pedological classification of these different collection sites. Results of the multivariate statistical analysis suggest that wild hops constitute a huge pool of chemical and genetic diversity of this species.
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Affiliation(s)
- Anne-Sophie Paguet
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Ali Siah
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Gabriel Lefèvre
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Sophie Moureu
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Thierry Cadalen
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Jennifer Samaillie
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Franck Michels
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Barbara Deracinois
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Christophe Flahaut
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Harmony Alves Dos Santos
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Audrey Etienne-Debaecker
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Caroline Rambaud
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Sylvie Chollet
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Roland Molinié
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Jean-Xavier Fontaine
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Christophe Waterlot
- Univ. Lille, Institut Mines-Télécom, Univ. Artois, JUNIA, ULR 4515 - LGCgE, Laboratoire de Génie Civil et Géo-Environnement, F-59000 Lille, France
| | - Marie-Laure Fauconnier
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Sevser Sahpaz
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France
| | - Céline Rivière
- Joint Research Unit 1158 BioEcoAgro, Univ. Lille, JUNIA, UPJV, Univ. Liège, INRAE, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, F-59650 Villeneuve D'Ascq, France.
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Forrister DL, Endara MJ, Soule AJ, Younkin GC, Mills AG, Lokvam J, Dexter KG, Pennington RT, Kidner CA, Nicholls JA, Loiseau O, Kursar TA, Coley PD. Diversity and divergence: evolution of secondary metabolism in the tropical tree genus Inga. THE NEW PHYTOLOGIST 2023; 237:631-642. [PMID: 36263711 DOI: 10.1111/nph.18554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Plants are widely recognized as chemical factories, with each species producing dozens to hundreds of unique secondary metabolites. These compounds shape the interactions between plants and their natural enemies. We explore the evolutionary patterns and processes by which plants generate chemical diversity, from evolving novel compounds to unique chemical profiles. We characterized the chemical profile of one-third of the species of tropical rainforest trees in the genus Inga (c. 100, Fabaceae) using ultraperformance liquid chromatography-mass spectrometry-based metabolomics and applied phylogenetic comparative methods to understand the mode of chemical evolution. We show: each Inga species contain structurally unrelated compounds and high levels of phytochemical diversity; closely related species have divergent chemical profiles, with individual compounds, compound classes, and chemical profiles showing little-to-no phylogenetic signal; at the evolutionary time scale, a species' chemical profile shows a signature of divergent adaptation. At the ecological time scale, sympatric species were the most divergent, implying it is also advantageous to maintain a unique chemical profile from community members; finally, we integrate these patterns with a model for how chemical diversity evolves. Taken together, these results show that phytochemical diversity and divergence are fundamental to the ecology and evolution of plants.
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Affiliation(s)
- Dale L Forrister
- School of Biological Sciences, University of Utah, Aline W. Skaggs Biology Building, 257 S 1400 E, Salt Lake City, UT, 84112-0840, USA
| | - María-José Endara
- School of Biological Sciences, University of Utah, Aline W. Skaggs Biology Building, 257 S 1400 E, Salt Lake City, UT, 84112-0840, USA
- Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud-BIOMAS - Universidad de las Américas, 170513, Quito, Ecuador
| | - Abrianna J Soule
- School of Biological Sciences, University of Utah, Aline W. Skaggs Biology Building, 257 S 1400 E, Salt Lake City, UT, 84112-0840, USA
| | - Gordon C Younkin
- Boyce Thompson Institute, Ithaca, NY, 14853, USA
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - Anthony G Mills
- School of Biological Sciences, University of Utah, Aline W. Skaggs Biology Building, 257 S 1400 E, Salt Lake City, UT, 84112-0840, USA
| | - John Lokvam
- School of Biological Sciences, University of Utah, Aline W. Skaggs Biology Building, 257 S 1400 E, Salt Lake City, UT, 84112-0840, USA
| | - Kyle G Dexter
- School of Geosciences, University of Edinburgh, Old College, South Bridge, Edinburgh, EH8 9YL, UK
| | - R Toby Pennington
- Department of Geography, University of Exeter, Laver Building, North Park Road, Exeter, EX4 4QE, UK
| | - Catherine A Kidner
- School of Biological Sciences, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh, EH9 3JW, UK
- Royal Botanic Gardens Edinburgh, 20a Inverleith Row, Edinburgh, EH3 5LR, UK
| | - James A Nicholls
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australian National Insect Collection (ANIC), Building 101, Clunies Ross Street, Black Mountain, ACT, 2601, Australia
| | - Oriane Loiseau
- School of Geosciences, University of Edinburgh, Old College, South Bridge, Edinburgh, EH8 9YL, UK
| | - Thomas A Kursar
- School of Biological Sciences, University of Utah, Aline W. Skaggs Biology Building, 257 S 1400 E, Salt Lake City, UT, 84112-0840, USA
| | - Phyllis D Coley
- School of Biological Sciences, University of Utah, Aline W. Skaggs Biology Building, 257 S 1400 E, Salt Lake City, UT, 84112-0840, USA
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Chen J, Ning S, Lu X, Xiang W, Zhou X, Bu Y, Li L, Huang R. Variation in flavonoid and antioxidant activities of Pyrrosia petiolosa (Christ) Ching from different geographic origins. FRONTIERS IN PLANT SCIENCE 2023; 14:1173489. [PMID: 37123848 PMCID: PMC10140315 DOI: 10.3389/fpls.2023.1173489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/29/2023] [Indexed: 05/03/2023]
Abstract
Pyrrosia petiolosa (Christ) Ching has both medicinal and health benefits in China. The potential antioxidant activities of P. petiolosa, which are mainly attributed to its flavonoids, have attracted much attention in recent years. The present study aimed to determine the concentration of flavonoid components and evaluate the relative antioxidant activities of P. petiolosa from different geographic origins using a UPLC-MRM-MS-based metabolomics approach. In total, 97 flavonoid components were identified, and their concentrations in the samples from different geographic locations showed significant variation. Thirteen flavonoid components were identified as potential biomarkers for distinguishing between the two major regions, Guizhou (GZ) and Guangxi (GX). The GZ group showed higher total flavonoid content, free radical scavenging activities, and ferric reducing antioxidant power. The well positive correlations were found between the antioxidant capacities and some flavonoid markers. The ecogeographic factors, namely altitude and longitude, play a crucial role in the difference of antioxidant activities and flavonoids concentration. These results indicate that P. petiolosa is rich in flavonoid compounds and is a promising source of natural antioxidants, providing a basis for the quality control of P. petiolosa.
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Affiliation(s)
- Jianhua Chen
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
- Key Laboratory of Protection and Utilization of Traditional Chinese Medicine and Ethnic Medicine Resources, Education Department of Guangxi, Nanning, China
| | - Shan Ning
- Guangxi Institute of Chinese Medicine & Pharmaceutical Science, Nanning, China
| | - Xuan Lu
- Key Laboratory of Protection and Utilization of Traditional Chinese Medicine and Ethnic Medicine Resources, Education Department of Guangxi, Nanning, China
| | - Wei Xiang
- College of Horticulture, Hunan Agricultural University, Hunan, China
| | - Xiao Zhou
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Yuanyuan Bu
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Liangbo Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
- Key Laboratory of Protection and Utilization of Traditional Chinese Medicine and Ethnic Medicine Resources, Education Department of Guangxi, Nanning, China
- *Correspondence: Liangbo Li, ; Rongshao Huang,
| | - Rongshao Huang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
- Key Laboratory of Protection and Utilization of Traditional Chinese Medicine and Ethnic Medicine Resources, Education Department of Guangxi, Nanning, China
- *Correspondence: Liangbo Li, ; Rongshao Huang,
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42
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Ziaja D, Müller C. Intraspecific chemodiversity provides plant individual- and neighbourhood-mediated associational resistance towards aphids. FRONTIERS IN PLANT SCIENCE 2023; 14:1145918. [PMID: 37082343 PMCID: PMC10111025 DOI: 10.3389/fpls.2023.1145918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/06/2023] [Indexed: 05/03/2023]
Abstract
Some plant species express an extraordinarily high intraspecific diversity in phytochemicals (= chemodiversity). As discussed for biodiversity, higher chemodiversity may provide better protection against environmental stress, including herbivory. However, little is known about whether the resistance of a plant individual towards herbivores is mostly governed by its own chemodiversity or by associational resistance provided by conspecific neighbours. To investigate the role of chemodiversity in plant-aphid interactions, we used the Asteraceae Tanacetum vulgare, whose individuals differ pronouncedly in the composition of leaf terpenoids, forming distinct chemotypes. Plants were set up in a field consisting of plots containing five individuals of either the same or different chemotypes. Presence of winged aphids, indicating attraction, and abundance of winged and unwinged aphids, indicating fitness, were counted weekly on each plant. During the peak abundance of aphids, leaf samples were taken from all plants for re-analyses of the terpenoid composition and quantification of terpenoid chemodiversity, calculated on an individual plant (Shannon index, Hsind, also considered as α-chemodiversity) and plot level (Hsplot, = β-chemodiversity). Aphid attraction was neither influenced by chemotype nor plot-type. The real-time odour environment may be very complex in this setting, impeding clear preferences. In contrast, the abundance was affected by both chemotype and plot-type. On average, more Uroleucon tanaceti aphids were found on plants of two of the chemotypes growing in homogenous compared to heterogenous plots, supporting the associational resistance hypothesis. For Macrosiphoniella tanacetaria aphids, the probability of presence differed between plot-types on one chemotype. Terpenoid chemodiversity expressed as a gradient revealed negative Hsplot effects on U. tanaceti, but a positive correlation of Hsind with M. tanacetaria abundance. Aphids of M. fuscoviride were not affected by any level of chemodiversity. In conclusion, this study shows that not only the chemotype and chemodiversity of individual plants but also that of conspecific neighbours can influence certain plant-herbivore interactions. These effects are highly specific with regard to the plant chemotype and differ between aphid species and their morphs (winged vs. unwinged). Furthermore, our results highlight the importance of analysing chemodiversity at different levels.
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Tlili H, Arfa AB, Boubakri A, Hanen N, Neffati M, Doria E. Biochemical Composition and Biological Activities of Various Population of Brassica tournefortii Growing Wild in Tunisia. PLANTS (BASEL, SWITZERLAND) 2022; 11:3393. [PMID: 36501432 PMCID: PMC9739365 DOI: 10.3390/plants11233393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Brassica tournefortii Gouan, commonly known (Aslooz) in Tunisia, is an annual plant, native to the North Africa and Middle East. Brassica species are used as food, their young leaves can be cooked, providing nutrients and health-giving phytochemicals such as phenolic compounds, polyphenols and carotenoids. Phytochemical composition and bioactivity of Brassica tournefortii leaf extracts, collected from four different bioclimatic zones in Tunisia, are investigated in the present study. Results showed that location and climatic variations can alter the phytochemical composition of B. tournefortii. Interestingly, HPLC analysis enabled identifying lutein and beta-carotene at high concentrations, especially in extracts of B. tournefortii collected from Gabes (B2) (344 µg/g of lutein) and B. tournefortii collected from Zarzis (B3) (1364 µg/g of beta-carotene). In particular, the antioxidant activity measured by DPPH assay showed that the extract of the plants collected from the growing region of Zarzis exhibits the highest antioxidant activities (0.99 mg/mL). All the Brassica tournefortii extracts showed a relevant antiproliferative activity, especially toward the Caco-2 cell line. These preliminary data resulted in being useful to correlate growth environmental conditions with different accumulation of metabolites in Brassica species still being poorly studied.
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Affiliation(s)
- Hajer Tlili
- Laboratory of Pastoral Ecosystems and Valorization of Spontaeous Plants and Microorganisms, Institute of Arid Regions (IRA), Medenine 4119, Tunisia
| | - Abdelkarim Ben Arfa
- Laboratory of Pastoral Ecosystems and Valorization of Spontaeous Plants and Microorganisms, Institute of Arid Regions (IRA), Medenine 4119, Tunisia
| | - Abdelbasset Boubakri
- Laboratory of Pastoral Ecosystems and Valorization of Spontaeous Plants and Microorganisms, Institute of Arid Regions (IRA), Medenine 4119, Tunisia
| | - Najjaa Hanen
- Laboratory of Pastoral Ecosystems and Valorization of Spontaeous Plants and Microorganisms, Institute of Arid Regions (IRA), Medenine 4119, Tunisia
| | - Mohamed Neffati
- Laboratory of Pastoral Ecosystems and Valorization of Spontaeous Plants and Microorganisms, Institute of Arid Regions (IRA), Medenine 4119, Tunisia
| | - Enrico Doria
- Department of Biology and Biotechnology, University of Pavia, 27100 Pavia, Italy
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Bahmani K, Robinson A, Majumder S, LaVardera A, Dowell JA, Goolsby EW, Mason CM. Broad diversity in monoterpene-sesquiterpene balance across wild sunflowers: Implications of leaf and floral volatiles for biotic interactions. AMERICAN JOURNAL OF BOTANY 2022; 109:2051-2067. [PMID: 36317693 DOI: 10.1002/ajb2.16093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
PREMISE As plant lineages diversify across environmental gradients, species are predicted to encounter divergent biotic pressures. This study investigated the evolution of volatile secondary metabolism across species of Helianthus. METHODS Leaves and petals of 40 species of wild Helianthus were analyzed via gas chromatography-mass spectrometry to determine volatile secondary metabolite profiles. RESULTS Across all species, 500 compounds were identified; 40% were sesquiterpenes, 18% monoterpenes, 3% diterpenes, 4% fatty acid derivatives, and 35% other compounds such as phenolics and small organic molecules. Qualitatively, annuals and species from more arid western climates had leaf compositions with a higher proportion of total monoterpenes, while erect perennials and species from more mesic eastern habitats contained a higher proportion of total sesquiterpenes. Among species, mass-based leaf monoterpene and sesquiterpene abundance were identified as largely orthogonal axes of variation by principal component analysis. Profiles for leaves were not strongly correlated with those of petals. CONCLUSIONS Volatile metabolites were highly diverse among wild Helianthus, indicating the value of this genus as a model system and rich genetic resource. The independence of leaf and petal volatile profiles indicates a low level of phenotypic integration between vegetative and reproductive structures, implying vegetative defense and reproductive defense or pollinator attraction functions mediated by terpene profiles in these two organs can evolve without major trade-offs. The major biosynthetic pathways for the major terpenes in wild Helianthus are already well described, providing a road map to deeper inquiry into the drivers of this diversity.
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Affiliation(s)
- Keivan Bahmani
- Department of Biology, University of Central Florida, Orlando, FL, USA
| | | | - Sambadi Majumder
- Department of Biology, University of Central Florida, Orlando, FL, USA
| | | | - Jordan A Dowell
- Department of Plant Sciences, University of California, Davis, Davis, CA, USA
| | - Eric W Goolsby
- Department of Biology, University of Central Florida, Orlando, FL, USA
| | - Chase M Mason
- Department of Biology, University of Central Florida, Orlando, FL, USA
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Liu C, Zhu X, Zhang J, Shen M, Chen K, Fu X, Ma L, Liu X, Zhou C, Zhou D, Wang G. eQTLs play critical roles in regulating gene expression and identifying key regulators in rice. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:2357-2371. [PMID: 36087348 PMCID: PMC9674320 DOI: 10.1111/pbi.13912] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/11/2022] [Accepted: 08/13/2022] [Indexed: 05/28/2023]
Abstract
The regulation of gene expression plays an essential role in both the phenotype and adaptation of plants. Transcriptome sequencing enables simultaneous identification of exonic variants and quantification of gene expression. Here, we sequenced the leaf transcriptomes of 287 rice accessions from around the world and obtained a total of 177 853 high-quality single nucleotide polymorphisms after filtering. Genome-wide association study identified 44 354 expression quantitative trait loci (eQTLs), which regulate the expression of 13 201 genes, as well as 17 local eQTL hotspots and 96 distant eQTL hotspots. Furthermore, a transcriptome-wide association study screened 21 candidate genes for starch content in the flag leaves at the heading stage. HS002 was identified as a significant distant eQTL hotspot with five downstream genes enriched for diterpene antitoxin synthesis. Co-expression analysis, eQTL analysis, and linkage mapping together demonstrated that bHLH026 acts as a key regulator to activate the expression of downstream genes. The transgenic assay revealed that bHLH026 is an important regulator of diterpenoid antitoxin synthesis and enhances the disease resistance of rice. These findings improve our knowledge of the regulatory mechanisms of gene expression variation and complex regulatory networks of the rice genome and will facilitate genetic improvement of cultivated rice varieties.
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Affiliation(s)
- Chang Liu
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Xiya Zhu
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Jin Zhang
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Meng Shen
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Kai Chen
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Xiangkui Fu
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Lian Ma
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Xuelin Liu
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Chang Zhou
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
| | - Dao‐Xiu Zhou
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
- Institute of Plant Science Paris‐Saclay (IPS2)CNRS, INRAE, University Paris‐SaclayOrsayFrance
| | - Gongwei Wang
- National Key Laboratory of Crop Genetic ImprovementHubei Hongshan Laboratory, Huazhong Agricultural UniversityWuhanChina
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Marceddu R, Carrubba A, Sarno M. Resilience of hop ( Humulus lupulus L.) to salinity, heat and drought stresses: A mini-review. FRONTIERS IN PLANT SCIENCE 2022; 13:1064922. [PMID: 36531342 PMCID: PMC9749550 DOI: 10.3389/fpls.2022.1064922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 11/14/2022] [Indexed: 06/17/2023]
Abstract
Over recent years, the cultivation of hops (Humulus lupulus L.) has spread widely in the Mediterranean, also affecting the southern regions of Spain and Italy with a typical semi-arid climate. Several and recent studies have investigated the responses of this species to the main abiotic stresses, which is an aspect of absolute relevance to the knowledge of the adaptive capacity of hops to the growing conditions of a new cultivation environment. Moreover, given the fact that hops' phytochemical composition is determined primarily by genetic and environmental factors, and that the species is perennial, the lack of knowledge on the effects of abiotic stress could be reflected in subsequent years, which means multi-year economic risks. This review work therefore aims to showcase, based on an in-depth investigation of the available literature, the response of hop to the main abiotic stresses, and the effect of these on productive and qualitative crop performances. The data presented will be useful to the understanding of constraints and to the identification of useful coping strategies to the cultivation of hops in semi-arid Mediterranean environments.
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Conneely LJ, Berkowitz O, Lewsey MG. Emerging trends in genomic and epigenomic regulation of plant specialised metabolism. PHYTOCHEMISTRY 2022; 203:113427. [PMID: 36087823 DOI: 10.1016/j.phytochem.2022.113427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 08/23/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Regulation of specialised metabolism genes is multilayered and complex, influenced by an array of genomic, epigenetic and epigenomic mechanisms. Here, we review the most recent knowledge in this field, drawing from discoveries in several plant species. Our aim is to improve understanding of how plant genome structure and function influence specialised metabolism. We also highlight key areas for future exploration. Gene regulatory mechanisms influencing specialised metabolism include gene duplication and neo-functionalization, conservation of operon-like clusters of specialised metabolism genes, local chromatin modifications, and the organisation of higher order chromatin structures within the nucleus. Genomic and epigenomic research to-date in the discipline have focused on a relatively small number of plant species, primarily at whole organ or tissue level. This is largely due to the technical demands of the experimental methods needed. However, a high degree of cell-type specificity of function exists in specialised metabolism, driven by similarly specific gene regulation. In this review we focus on the genomic characteristics of genes that are found in different types of clusters within the genome. We propose that acquisition of cell-resolution epigenomic datasets in emerging models, such as the glandular trichomes of Cannabis sativa, will yield important advances. Data such as chromatin accessibility and histone modification profiles can pinpoint which regulatory sequences are active in individual cell types and at specific times in development. These could provide fundamental biological insight as well as novel targets for genetic engineering and crop improvement.
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Affiliation(s)
- Lee J Conneely
- La Trobe Institute for Agriculture and Food, La Trobe University, AgriBio Building, Bundoora, VIC, 3086, Australia; Australian Research Council Research Hub for Medicinal Agriculture, La Trobe University, AgriBio Building, Bundoora, VIC, 3086, Australia
| | - Oliver Berkowitz
- La Trobe Institute for Agriculture and Food, La Trobe University, AgriBio Building, Bundoora, VIC, 3086, Australia; Australian Research Council Research Hub for Medicinal Agriculture, La Trobe University, AgriBio Building, Bundoora, VIC, 3086, Australia
| | - Mathew G Lewsey
- La Trobe Institute for Agriculture and Food, La Trobe University, AgriBio Building, Bundoora, VIC, 3086, Australia; Australian Research Council Research Hub for Medicinal Agriculture, La Trobe University, AgriBio Building, Bundoora, VIC, 3086, Australia.
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Oduor AMO. Invasive plant species that experience lower herbivory pressure may evolve lower diversities of chemical defense compounds in the exotic range. AMERICAN JOURNAL OF BOTANY 2022; 109:1382-1393. [PMID: 36000500 DOI: 10.1002/ajb2.16053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
PREMISE Invasive plant species often escape from specialist herbivores and are more likely to be attacked by generalist herbivores in the exotic range. Consequently, the shifting defense hypothesis predicts that invasive plants will produce higher concentrations of qualitative defense compounds to deter dominant generalist herbivores in the exotic range. Here, I additionally propose a reduced chemical diversity hypothesis (RCDH), which predicts that reduced herbivory pressure will select for invasive plant genotypes that produce lower diversities of chemical defense compounds in the exotic range. METHODS I tested whether (1) invasive Brassica nigra populations express a lower diversity and an overall higher concentration of glucosinolate compounds than native-range B. nigra; (2) Brassica nigra individuals that express high diversities and concentrations of glucosinolate compounds are more attractive to specialist and deterrent to generalist herbivores; and (3) tissues of invasive B. nigra are less palatable than tissues of native-range B. nigra to the generalist herbivores Theba pisana and Helix aspersa. RESULTS Invasive B. nigra populations produced a significantly lower diversity of glucosinolate compounds, a marginally higher concentration of total glucosinolates, and a significantly higher concentration of sinigrin (the dominant glucosinolate). Leaf tissues of invasive B. nigra were significantly less palatable to T. pisana and marginally less so to H. aspersa. Brassica nigra individuals that expressed high concentrations of total glucosinolate compounds were visited by a low diversity of generalist herbivore species in the field. CONCLUSIONS In line with the RCDH, the lower diversity of glucosinolate compounds produced by invasive B. nigra populations likely resulted from selection imposed by reduced herbivory pressure in the exotic range.
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Affiliation(s)
- Ayub M O Oduor
- Department of Applied Biology, Technical University of Kenya, P.O. Box 52428-00200, Nairobi, Kenya
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Secondary Metabolites with Biomedical Applications from Plants of the Sarraceniaceae Family. Int J Mol Sci 2022; 23:ijms23179877. [PMID: 36077275 PMCID: PMC9456395 DOI: 10.3390/ijms23179877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022] Open
Abstract
Carnivorous plants have fascinated researchers and hobbyists for centuries because of their mode of nutrition which is unlike that of other plants. They are able to produce bioactive compounds used to attract, capture and digest prey but also as a defense mechanism against microorganisms and free radicals. The main purpose of this review is to provide an overview of the secondary metabolites with significant biological activity found in the Sarraceniaceae family. The review also underlines the necessity of future studies for the biochemical characterization of the less investigated species. Darlingtonia, Heliamphora and Sarracenia plants are rich in compounds with potential pharmaceutical and medical uses. These belong to several classes such as flavonoids, with flavonol glycosides being the most abundant, monoterpenes, triterpenes, sesquiterpenes, fatty acids, alkaloids and others. Some of them are well characterized in terms of chemical properties and biological activity and have widespread commercial applications. The review also discusses biological activity of whole extracts and commercially available products derived from Sarraceniaceae plants. In conclusion, this review underscores that Sarraceniaceae species contain numerous substances with the potential to advance health. Future perspectives should focus on the discovery of new molecules and increasing the production of known compounds using biotechnological methods.
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Drought Stress Stimulates the Terpenoid Backbone and Triterpenoid Biosynthesis Pathway to Promote the Synthesis of Saikosaponin in Bupleurum chinense DC. Roots. Molecules 2022; 27:molecules27175470. [PMID: 36080237 PMCID: PMC9457724 DOI: 10.3390/molecules27175470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
Bupleurum chinense is an important medicinal plant in China; however, little is known regarding how this plant transcribes and synthesizes saikosaponins under drought stress. Herein, we investigated how drought stress stimulates the transcriptional changes of B. chinense to synthesize saikosaponins. Short-term drought stress induced the accumulation of saikosaponins, especially from the first re-watering stage (RD_1 stage) to the second re-watering stage (RD_2 stage). Saikosaponin-a and saikosaponin-d increased by 84.60% and 75.13%, respectively, from the RD_1 stage to the RD_2 stage. Drought stress also stimulated a rapid increase in the levels of the hormones abscisic acid, salicylic acid, and jasmonic acid. We screened 49 Unigenes regarding the terpenoid backbone and triterpenoid biosynthesis, of which 33 differential genes were significantly up-regulated during drought stress. Moreover, one P450 and two UGTs are possibly involved in the synthesis of saikosaponins, while some transcription factors may be involved in regulating the expression of key enzyme genes. Our study provides a reference for the cultivation of B. chinense and a practical means to ensure the quality (safety and effectiveness) of B. chinense for medicinal use, as well as insights into the modernization of the China Agriculture Research System.
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