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Đurić M, Jevremović S, Trifunović-Momčilov M, Milošević S, Subotić A, Jerinić-Prodanović D. Physiological and oxidative stress response of carrot (Daucus carota L.) to jumping plant-louse Bactericera trigonica Hodkinson (Hemiptera: Psylloidea) infestation. BMC Plant Biol 2024; 24:243. [PMID: 38575896 PMCID: PMC10993497 DOI: 10.1186/s12870-024-04946-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Carrot is an important vegetable crop grown worldwide. The major economic problem in carrot cultivation is yellow disease caused by Bactericera trigonica, which induces biotic stress and has the greatest impact on crop productivity. Comprehensive studies on the mechanism of carrot defense response to biotic stress caused by B. trigonica infestation have yet to be conducted. METHODS The changes in photosynthetic pigments, proline, TPC, H2O2 and MDA content, DPPH radical scavenging ability, and antioxidant enzyme activity of SOD, CAT, and POX in carrot leaves in response to insect sex (female and male), rapid response (during the first six hours), and long-term response to B. trigonica infestation were evaluated. RESULTS The results of our study strongly suggest that B. trigonica infestation causes significant changes in primary and secondary metabolism and oxidative status of carrot leaves. Photosynthetic pigment content, TPC, and DPPH and CAT activities were significantly reduced in carrot leaves in response to insect infestation. On the other hand, proline, H2O2 content, and the activity of the antioxidant enzymes superoxide dismutase and peroxidase were increased in carrot leaves after B. trigonica infestation. The results indicate that B. trigonica attenuates and delays the oxidative stress responses of carrot, allowing long-term feeding without visible changes in the plant. Carrot responded to long-term B. trigonica infestation with an increase in SOD and POX activity, suggesting that these enzymes may play a key role in plant defense mechanisms. CONCLUSIONS This is the first comprehensive study strongly suggesting that B. trigonica infestation causes significant changes in primary and secondary metabolism and an attenuated ROS defense response in carrot leaves that enables long-term insect feeding. The information provides new insights into the mechanisms of carrot protection against B. trigonica infestation.
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Affiliation(s)
- Marija Đurić
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia
| | - Slađana Jevremović
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia.
| | - Milana Trifunović-Momčilov
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia
| | - Snežana Milošević
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia
| | - Angelina Subotić
- Department for Plant Physiology at the Institute for Biological Research "Siniša Stanković", - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11108, Serbia
| | - Dušanka Jerinić-Prodanović
- Department of Entomology and Agricultural Zoology, Faculty of Agriculture, University of Belgrade, Nemanjina 6, Belgrade, 11080, Serbia
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Subotić A, Jevremović S, Milošević S, Trifunović-Momčilov M, Đurić M, Koruga Đ. Physiological Response, Oxidative Stress Assessment and Aquaporin Genes Expression of Cherry Tomato ( Solanum lycopersicum L.) Exposed to Hyper-Harmonized Fullerene Water Complex. Plants (Basel) 2022; 11:plants11212810. [PMID: 36365262 PMCID: PMC9655305 DOI: 10.3390/plants11212810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 05/30/2023]
Abstract
The rapid production and numerous applications of nanomaterials warrant the necessity and importance of examining nanoparticles in terms to their environmental and biological effects and implications. In this study, the effects of a water-soluble hyper-harmonized hydroxyl-modified fullerene (3HFWC) on cherry tomato seed germination, seedlings growth, physiological response and fruiting was evaluated. Changes in the photosynthetic pigments content, oxidative stress assessment, and aquaporin genes expression in cherry tomato plants were studied after during short- and long-term continuous exposure to 3HFWC nanosubstance (200 mg/L). Increased levels of photosynthetic pigments in leaves, lycopene in fruits, decreased levels of hydrogen peroxide content, activation of cellular antioxidant enzymes such as superoxide dismutase, catalase and peroxidase and increased aquaporin gene expression (PIP1;3, PIP1;5 and PIP2;4) were observed in 3HFWC nanosubstance-exposed plants in comparison to control, untreated cherry tomato plants. The 3HFWC nanosubstance showed positive effects on cherry tomato seed germination, plantlet growth and lycopene content in fruits and may be considered as a promising nanofertilizer.
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Affiliation(s)
- Angelina Subotić
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”-National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Slađana Jevremović
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”-National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Snežana Milošević
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”-National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Milana Trifunović-Momčilov
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”-National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Marija Đurić
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”-National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Đuro Koruga
- TFT Nano Center, Vojislava Ilića 88, 11050 Belgrade, Serbia
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Škoro N, Živković S, Jevremović S, Puač N. Treatment of Chrysanthemum Synthetic Seeds by Air SDBD Plasma. Plants (Basel) 2022; 11:plants11070907. [PMID: 35406888 PMCID: PMC9003063 DOI: 10.3390/plants11070907] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 05/28/2023]
Abstract
Herein, we present the effect of surface dielectric barrier discharge (SDBD) air cold plasma on regrowth of chrysanthemum synthetic seeds (synseeds) and subsequent plantlet development. The plasma system used in this study operates in air at the frequency of 50 Hz. The detailed electrical characterization of SDBD was shown, as well as air plasma emission spectra obtained by optical emission spectroscopy. The chrysanthemum synseeds (encapsulated shoot tips) were treated in air plasma for different treatment times (0, 5 or 10 min). Plasma treatment significantly improved the regrowth and whole plantlet development of chrysanthemum synseeds under aseptic (in vitro) and non-aseptic (ex vitro) conditions. We evaluated the effect of SDBD plasma on synseed germination of four chrysanthemum cultivars after direct sowing in soil. Germination of synseeds directly sowed in soil was cultivar-dependent and 1.6-3.7 fold higher after plasma treatment in comparison with untreated synseeds. The study showed a highly effective novel strategy for direct conversion of simple monolayer alginate chrysanthemum synseeds into entire plantlets by plasma pre-conversion treatment. This treatment reduced contamination and displayed a considerable ex vitro ability to convert clonally identical chrysanthemum plants.
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Affiliation(s)
- Nikola Škoro
- Institute of Physics-National Institute of Republic of Serbia, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
| | - Suzana Živković
- Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Despot Stefan Boulevard 142, 11000 Belgrade, Serbia
| | - Slađana Jevremović
- Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Despot Stefan Boulevard 142, 11000 Belgrade, Serbia
| | - Nevena Puač
- Institute of Physics-National Institute of Republic of Serbia, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
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Trifunović-Momčilov M, Motyka V, Dobrev PI, Marković M, Milošević S, Jevremović S, Dragićević IČ, Subotić A. Phytohormone profiles in non-transformed and AtCKX transgenic centaury (Centaurium erythraea Rafn) shoots and roots in response to salinity stress in vitro. Sci Rep 2021; 11:21471. [PMID: 34728697 PMCID: PMC8563955 DOI: 10.1038/s41598-021-00866-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 10/05/2021] [Indexed: 11/09/2022] Open
Abstract
Plant hormones regulate numerous developmental and physiological processes. Abiotic stresses considerably affect production and distribution of phytohormones as the stress signal triggers. The homeostasis of plant hormones is controlled by their de novo synthesis and catabolism. The aim of this work was to analyse the contents of total and individual groups of endogenous cytokinins (CKs) as well as indole-3-acetic acid (IAA) in AtCKX overexpressing centaury plants grown in vitro on graded NaCl concentrations (0, 50, 100, 150, 200 mM). The levels of endogenous stress hormones including abscisic acid (ABA), salicylic acid (SA) and jasmonic acid (JA) were also detected. The elevated contents of total CKs were found in all analysed centaury shoots. Furthermore, increased amounts of all five CK groups, as well as enhanced total CKs were revealed on graded NaCl concentrations in non-transformed and AtCKX roots. All analysed AtCKX centaury lines exhibited decreased amounts of endogenous IAA in shoots and roots. Consequently, the IAA/bioactive CK forms ratios showed a significant variation in the shoots and roots of all AtCKX lines. In shoots and roots of both non-transformed and AtCKX transgenic centaury plants, salinity was associated with an increase of ABA and JA and a decrease of SA content.
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Affiliation(s)
- Milana Trifunović-Momčilov
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia.
| | - Václav Motyka
- Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 16502, Prague 6, Czech Republic
| | - Petre I Dobrev
- Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 16502, Prague 6, Czech Republic
| | - Marija Marković
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Snežana Milošević
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Slađana Jevremović
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
| | - Ivana Č Dragićević
- Faculty of Biology, University of Belgrade, Studentski trg 16, Belgrade, 11000, Serbia
| | - Angelina Subotić
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, Belgrade, 11060, Serbia
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Marković M, Trifunović Momčilov M, Uzelac B, Jevremović S, Subotić A. Bulb Dormancy In Vitro- Fritillaria meleagris: Initiation, Release and Physiological Parameters. Plants (Basel) 2021; 10:plants10050902. [PMID: 33946167 PMCID: PMC8145364 DOI: 10.3390/plants10050902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/22/2021] [Accepted: 04/25/2021] [Indexed: 11/16/2022]
Abstract
In ornamental geophytes, conventional vegetative propagation is not economically feasible due to very slow development and ineffective methods. It can take several years until a new plant is formed and commercial profitability is achieved. Therefore, micropropagation techniques have been developed to increase the multiplication rate and thus shorten the multiplication and regeneration period. The majority of these techniques rely on the formation of new bulbs and their sprouting. Dormancy is one of the main limiting factors to speed up multiplication in vitro. Bulbous species have a period of bulb dormancy which enables them to survive unfavorable natural conditions. Bulbs grown in vitro also exhibit dormancy, which has to be overcome in order to allow sprouting of bulbs in the next vegetation period. During the period of dormancy, numerous physiological processes occur, many of which have not been elucidated yet. Understanding the process of dormancy will allow us to speed up and improve breeding of geophytes and thereby achieve economic profitability, which is very important for horticulture. This review focuses on recent findings in the area of bulb dormancy initiation and release in fritillaries, with particular emphasis on the effect of plant growth regulators and low-temperature pretreatment on dormancy release in relation to induction of antioxidative enzymes' activity in vitro.
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Marković M, Trifunović Momčilov M, Uzelac B, Radulović O, Milošević S, Jevremović S, Subotić A. Breaking the Dormancy of Snake's Head Fritillary ( Fritillaria meleagris L.) In Vitro Bulbs-Part 2: Effect of GA 3 Soaking and Chilling on Sugar Status in Sprouted Bulbs. Plants (Basel) 2020; 9:plants9111573. [PMID: 33203039 PMCID: PMC7698034 DOI: 10.3390/plants9111573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 11/22/2022]
Abstract
The bulb is the main propagation organ of snake’s head fritillary (Fritillaria meleagris L.), a horticulturally attractive and rare geophyte plant species. In this study, we investigated the effect of soaking bulbs in GA3 solution (1, 2, and 3 mg L−1) combined with low-temperature treatment (7 °C) on breaking the dormancy of in vitro bulbs. Sugar status (total soluble sugars, glucose, and fructose content) was analyzed in different parts of the sprouted bulbs. The results showed that the soluble sugar concentration was highest in bulbs soaked in GA3. The main sugar in fritillary bulbs was glucose, while fructose content was much lower. Glucose concentration dramatically increased after bulb chilling (7 °C), and its accumulation was predominantly detected in the lower sprout portion during the first weeks of sprouting. Sugar concentration was significantly lower in nonchilled bulbs, which indicates the importance of low temperature in bulb development and sprouting.
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Marković M, Trifunović Momčilov M, Uzelac B, Cingel A, Milošević S, Jevremović S, Subotić A. Breaking the Dormancy of Snake's Head Fritillary ( Fritillaria meleagris L.) In Vitro Bulbs-Part 1: Effect of GA 3, GA Inhibitors and Temperature on Fresh Weight, Sprouting and Sugar Content. Plants (Basel) 2020; 9:plants9111449. [PMID: 33121106 PMCID: PMC7692657 DOI: 10.3390/plants9111449] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 11/16/2022]
Abstract
Bulbs are the main vegetative reproductive organs of Fritillaria meleagris L. In nature, as well as in vitro, they become dormant and require low temperatures for further growth during the next vegetative period. In the present study, using 10 μM of gibberellic acid (GA3), or gibberellin biosynthesis (GA) inhibitors—ancymidol (A) and paclobutrazol (P)—the dynamic changes in soluble sugars, fructose and glucose content, fresh weight and sprouting capacity were investigated. F. meleagris bulbs were cultured on medium with GA3 and GA inhibitors for 1, 2 and 5 weeks at two different temperatures (24 and 7 °C). GA3 improved bulb fresh weight, as well as sprouting percentage at both tested temperatures, compared to the control. The highest fresh weight increase (57.7%) and sprouting rate (29.02%) were achieved when bulbs were grown at 24 °C for 5 weeks. In addition, soluble sugar content was the highest in bulbs grown for 5 weeks on medium supplemented with GA3. The main sugar in fritillary bulbs was glucose, while fructose content was lower. The sensitivity of bulbs to GA inhibitors differed and significantly affected sugar content in bulbs. To our knowledge, this is the first study of the sugar composition in F. meleagris bulbs during breaking of the bulb’s dormancy and its sprouting.
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Petrić M, Subotić A, Jevremović S, Trifunović-Momčilov M, Tadić V, Grujić M, Vujčić Z. Esterase and peroxidase isoforms in different stages of morphogenesis in Fritillaria meleagris L. in bulb-scale culture. C R Biol 2015; 338:793-802. [PMID: 26545851 DOI: 10.1016/j.crvi.2015.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/26/2015] [Accepted: 08/26/2015] [Indexed: 11/24/2022]
Abstract
Morphogenesis in vitro is a complex and still poorly defined process. We investigated esterase and peroxidase isoforms detected in bulb scale, during Fritillaria meleagris morphogenesis. Bulbs were grown either at 4 °C or on a medium with an increased concentration of sucrose (4.5%) for 30 days. After these pre-treatments, the bulb scales were further grown on nutrient media that contained different concentrations of 2,4-dichlorophenoxyacetic acid (2,4-D) and kinetin (KIN) or thidiazuron (TDZ). Regeneration of somatic embryos and bulblets occurred at the same explant. The highest numbers of somatic embryos and bulblets were regenerated on the medium containing 2,4-D and KIN (1mg/L each), while morphogenesis was most successful at a TDZ concentration between 0.5 and 1mg/L. Monitoring of esterases and peroxidases was performed by growing bulb scales on a medium enriched with 2,4-D and KIN or TDZ (1mg/L), and the number and activity of isoforms were followed every 7 days for 4 weeks. In control explants, six isoforms of esterase were observed. Three isoforms of peroxidase were not detected in the control bulb scale, which has not begun its morphogenesis process.
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Affiliation(s)
- Marija Petrić
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia.
| | - Angelina Subotić
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
| | - Slađana Jevremović
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
| | - Milana Trifunović-Momčilov
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
| | - Vojin Tadić
- Department for Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
| | - Marica Grujić
- Department for Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Zoran Vujčić
- Department for Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
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Jeknić Z, Jeknić S, Jevremović S, Subotić A, Chen THH. Alteration of flower color in Iris germanica L. 'Fire Bride' through ectopic expression of phytoene synthase gene (crtB) from Pantoea agglomerans. Plant Cell Rep 2014; 33:1307-1321. [PMID: 24801678 DOI: 10.1007/s00299-014-1617-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/01/2014] [Accepted: 04/04/2014] [Indexed: 06/03/2023]
Abstract
Genetic modulation of the carotenogenesis in I. germanica 'Fire Bride' by ectopic expression of a crtB gene causes several flower parts to develop novel orange and pink colors. Flower color in tall bearded irises (Iris germanica L.) is determined by two distinct biochemical pathways; the carotenoid pathway, which imparts yellow, orange and pink hues and the anthocyanin pathway, which produces blue, violet and maroon flowers. Red-flowered I. germanica do not exist in nature and conventional breeding methods have thus far failed to produce them. With a goal of developing iris cultivars with red flowers, we transformed a pink iris I. germanica, 'Fire Bride', with a bacterial phytoene synthase gene (crtB) from Pantoea agglomerans under the control of the promoter region of a gene for capsanthin-capsorubin synthase from Lilium lancifolium (Llccs). This approach aimed to increase the flux of metabolites into the carotenoid biosynthetic pathway and lead to elevated levels of lycopene and darker pink or red flowers. Iris callus tissue ectopically expressing the crtB gene exhibited a color change from yellow to pink-orange and red, due to accumulation of lycopene. Transgenic iris plants, regenerated from the crtB-transgenic calli, showed prominent color changes in the ovaries (green to orange), flower stalk (green to orange), and anthers (white to pink), while the standards and falls showed no significant differences in color when compared to control plants. HPLC and UHPLC analysis confirmed that the color changes were primarily due to the accumulation of lycopene. In this study, we showed that ectopic expression of a crtB can be used to successfully alter the color of certain flower parts in I. germanica 'Fire Bride' and produce new flower traits.
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Affiliation(s)
- Zoran Jeknić
- Department of Horticulture, Oregon State University, Corvallis, OR, 97331, USA
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Subotić A, Jevremović S, Cingel A, Milošević S. Effect of Urea—Type Citokinins on Axillary Shoots Regeneration ofImpatiens WallerianaL. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.1080/13102818.2008.10817559] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Jeknić Z, Morré JT, Jeknić S, Jevremović S, Subotić A, Chen TH. Cloning and functional characterization of a gene for capsanthin-capsorubin synthase from tiger lily (Lilium lancifolium Thunb. 'Splendens'). Plant Cell Physiol 2012; 53:1899-912. [PMID: 23008421 PMCID: PMC3494009 DOI: 10.1093/pcp/pcs128] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 09/17/2012] [Indexed: 05/19/2023]
Abstract
The orange color of tiger lily (Lolium lancifolium 'Splendens') flowers is due, primarily, to the accumulation of two κ-xanthophylls, capsanthin and capsorubin. An enzyme, known as capsanthin-capsorubin synthase (CCS), catalyzes the conversion of antheraxanthin and violaxanthin into capsanthin and capsorubin, respectively. We cloned the gene for capsanthin-capsorubin synthase (Llccs) from flower tepals of L. lancifolium by the rapid amplification of cDNA ends (RACE) with a heterologous non-degenerate primer that was based on the sequence of a gene for lycopene β-cyclase (lcyB). The full-length cDNA of Llccs was 1,785 bp long and contained an open reading frame of 1,425 bp that encoded a polypeptide of 474 amino acids with a predicted N-terminal plastid-targeting sequence. Analysis by reverse transcription-PCR (RT-PCR) revealed that expression of Llccs was spatially and temporally regulated, with expression in flower buds and flowers of L. lancifolium but not in vegetative tissues. Stable overexpression of the Llccs gene in callus tissue of Iris germanica, which accumulates several xanthophylls including violaxanthin, the precursor of capsorubin, resulted in transgenic callus whose color had changed from its normal yellow to red-orange. This novel red-orange coloration was due to the accumulation of two non-native κ-xanthophylls, capsanthin and capsorubin, as confirmed by HPLC and ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) analysis with authentic standards. Cloning of the Llccs gene should advance our understanding of the molecular and genetic mechanisms of the biosynthesis of κ-carotenoids in general and in the genus Lilium in particular, and will facilitate transgenic alterations of the colors of flowers and fruits of many plant species.
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MESH Headings
- Amino Acid Sequence
- Chromatography, High Pressure Liquid
- Cloning, Molecular
- Color
- DNA, Complementary/genetics
- DNA, Complementary/metabolism
- Flowers/enzymology
- Flowers/genetics
- Gene Expression Regulation, Enzymologic
- Gene Expression Regulation, Plant
- Genes, Plant
- Intramolecular Lyases/genetics
- Intramolecular Lyases/metabolism
- Iris Plant/genetics
- Iris Plant/metabolism
- Lilium/enzymology
- Lilium/genetics
- Molecular Sequence Data
- Open Reading Frames
- Oxidoreductases/genetics
- Oxidoreductases/metabolism
- Phylogeny
- Plant Proteins/genetics
- Plant Proteins/metabolism
- Plants, Genetically Modified/enzymology
- Plants, Genetically Modified/genetics
- Plants, Genetically Modified/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Sequence Homology, Amino Acid
- Tandem Mass Spectrometry/methods
- Xanthophylls/biosynthesis
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Affiliation(s)
- Zoran Jeknić
- Department of Horticulture, Oregon State University, Corvallis, OR 97331, USA
| | - Jeffrey T. Morré
- Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA
| | - Stevan Jeknić
- Department of Horticulture, Oregon State University, Corvallis, OR 97331, USA
| | - Slađana Jevremović
- Institute for Biological Research ‘Siniša Stanković’, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Angelina Subotić
- Institute for Biological Research ‘Siniša Stanković’, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Tony H.H. Chen
- Department of Horticulture, Oregon State University, Corvallis, OR 97331, USA
- *Corresponding author: E-mail, ; Fax, +1-541-737-3479.
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Jeremić B, Djurić L, Jevremović S, Stefanović K, Matović M. [Long-term oral administration of etoposide in the treatment of patients with advanced non-small-cell carcinoma of the lung. The second phase of a clinical study]. SRP ARK CELOK LEK 1996; 124:65-8. [PMID: 9102821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Over the period from May 1989 to May 1992 thirty-four patients with advanced non-small cell lung cancer (NSCLC) were treated with prolonged administration of oral etoposide. Etoposide was administered in a dose of 50 mg/m2 a day for 21 days. Nine (26%) patients partially responded to the treatment that lasted 2-7 months (median 5 months). Median survival time was 6 months, and 1-year survival was 32%. The most common toxic events were alopecia and myelosuppression. No patient died of treatment-related toxicity. Results of this study demonstrate moderate efficiency of the prolonged administration of oral etoposide to patients with advanced NSCLC.
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Affiliation(s)
- B Jeremić
- Department of Oncology, University Hospital, Kragujevac
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Jeremić B, Djurić L, Jovanović D, Jevremović S, Jevremović M, Mijatović L. [Single-fraction radiotherapy of painful bone metastases]. SRP ARK CELOK LEK 1992; 120:93-6. [PMID: 1281558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
We analyzed first results obtained in 92 patients treated with single-dose fraction radiotherapy for painful bone metastases. Tumour doses was 10 Gy in a single fraction. Response was obtained in 59/92 (64%) patients. Thirty nine patients had complete response and 20 had partial response. Pain recurred in 18/39 patients who initially responded. Toxicity of this radiotherapeutic treatment is acceptable, and can easily be managed with standard therapy.
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Affiliation(s)
- B Jeremić
- Kragujevac Clinical and Hospital Centre, Ward of Oncology
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Jeremić B, Grujicić D, Jevremović S, Mijatović L. [Acute signs and symptoms of toxicity due to the BOPP regimen (BCNU, vincristine, procarbazine, cisplatin) during treatment of high-grade astrocytoma]. SRP ARK CELOK LEK 1991; 119:256-8. [PMID: 1806994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BOPP chemotherapy regimen was introduced in patients with high-grade astrocytoma after surgery and radiotherapy. There were 10 anaplastic astrocytomas and 19 multiforme glioblastomas. Protocol consisted of BCNU 50 mg/m2, days 1-3, Vincristine 1,4 mg/m2 (max 2 mg), day 1, Procarbazine 50 mg/m2, days 1-7 and Cisplatin 20 mg/m2, days 1-3. All patients received at least three cycles of BOPP chemotherapy. The used toxicity criteria corresponded to ECOG. We observed 12 changes in WBC, 29 changes in haemoglobin, 18 changes in platelets and 11 changes in hematocrite. All patients had nausea and vomiting. We also observed 4 neurologic toxicities. Toxicities we observed responded favourably to standard means of therapy which can suggest either shortening of the interval between the cycles or increasing the dose per cycle.
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Affiliation(s)
- B Jeremić
- Department of Oncology, Clinical-Hospital Centre, Kragujevac
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