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Swami RK, Nimker S, Narula A, Farooqi H. Enhanced wedelolactone content in in vitro-raised genetically uniform Wedelia chinensis under the influence of CuSO 4. FRONTIERS IN PLANT SCIENCE 2023; 14:1281445. [PMID: 38169740 PMCID: PMC10758438 DOI: 10.3389/fpls.2023.1281445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/07/2023] [Indexed: 01/05/2024]
Abstract
In the present study, we addressed the imperative for potent anticancer agents through Wedelia chinensis, a medicinal plant abundant in the robust antihepatotoxic and antitumor compound wedelolactone. Hindrances in conventional propagation methods due to cross-pollination and habitat degradation prompted us to pioneer in vitro rapid multiplication using plant tissue culture. Optimal outcomes were attained employing Murashige and Skoog (MS) medium supplemented with Indole-3-butyric acid (IBA) (0.5 mg/L) and Kinetin (KN) (5.0 mg/L), yielding 97.67% shoot regeneration and 81.67% rooting from nodal explants. Transplanted plantlets exhibited a 92% survival rate. We established a wedelolactone extraction protocol using toluene:ethyl acetate:formic acid (5:4:1) for High-performance thin-layer chromatography (HPTLC) analysis, trailblazing wedelolactone quantification and 2C DNA analysis in W. chinensis via flow cytometry. Experiments under heavy metal stress with CuSO4 unveiled physiological responses, with peak wedelolactone content [193.90 μg/g dry weight (dw)] in vitro at 75 μM CuSO4, surpassing in vivo levels (89.95 μg/g dw) by 116%. By pioneering successful in vitro rapid multiplication and enhanced wedelolactone content, we bridge a critical gap in the conservation and production of this medicinal plant. Our findings not only offer a sustainable means of propagation but also present a viable strategy for elevating the yield of potent bioactive molecules like wedelolactone, holding immense promise for the development of novel therapeutic interventions and addressing the pressing healthcare challenges of our time.
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Affiliation(s)
- Ravi Kant Swami
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | | | - Alka Narula
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Humaira Farooqi
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
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Sanyal R, M M, Pandey S, Nandi S, Biswas P, Dewanjee S, Gopalakrishnan AV, Jha NK, Jha SK, Joshee N, Pandey DK, Dey A, Shekhawat MS. Biotechnological interventions and production of galanthamine in Crinum spp. Appl Microbiol Biotechnol 2023; 107:2155-2167. [PMID: 36922438 DOI: 10.1007/s00253-023-12444-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 03/18/2023]
Abstract
Genus Crinum L. is a member of the Amaryllidaceae family having beautiful, huge, ornamental plants with umbels of lily-like blooms that are found in tropical and subtropical climates all over the world. For thousands of years, Crinum has been used as a traditional medicine to treat illnesses and disorders. Numerous distinct alkaloids of the Amaryllidaceae group, whose most well-known properties include analgesic, anticholinergic, antitumor, and antiviral, have recently been discovered by phytochemical analyses. However, because of decades of overexploitation for their economically significant bioactive ingredients and poor seed viability and germination rates, these plants are now threatened in their native environments. Because of these factors, researchers are investigating micropropagation techniques to optimize phytochemicals in vitro. This review's objective is to offer details on the distribution, phytochemistry, micropropagation, in vitro galanthamine synthesis, and pharmacology which will help to design biotechnological techniques for the preservation, widespread multiplication, and required secondary metabolite production from Crinum spp. KEY POINTS: • Botanical description and phytochemical profile of Crinum spp. • In vitro micropropagation method of Crinum sp. • Bioactive compound galanthamine isolation techniques and its pharmacological properties.
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Affiliation(s)
- Rupa Sanyal
- Department of Botany, Bhairab Ganguly College (affiliated to West Bengal State University), Kolkata, West Bengal, 700056, India
| | - Manokari M
- Department of Botany, Siddha Clinical Research Unit, Central Council for Research in Siddha, Palayamkottai, Tamil Nadu, Chennai, 627002, India
| | - Sharmila Pandey
- Department of Botany, Bhairab Ganguly College (affiliated to West Bengal State University), Kolkata, West Bengal, 700056, India
| | - Saheli Nandi
- Department of Botany, Bhairab Ganguly College (affiliated to West Bengal State University), Kolkata, West Bengal, 700056, India
| | - Protha Biswas
- Department of Life Sciences, Presidency University, College Street, Kolkata, 700073, India
| | - Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, 700032, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, Uttar Pradesh, 201310, India
- Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, 140413, India
- Department of Biotechnology, School of Applied & Life Sciences (SALS), Uttaranchal University, Dehradun, 248007, India
| | - Saurabh Kumar Jha
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, Uttar Pradesh, 201310, India
- Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, 140413, India
- Department of Biotechnology, School of Applied & Life Sciences (SALS), Uttaranchal University, Dehradun, 248007, India
| | - Nirmal Joshee
- Agricultural Research Station, Fort Valley State University, Fort Valley, GA, 31088, USA
| | - Devendra Kumar Pandey
- Department of Biotechnology, Lovely Professional University Punjab, Phagwara, Punjab, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, College Street, Kolkata, 700073, India.
| | - Mahipal S Shekhawat
- Biotechnology Unit, Kanchi Mamunivar Government Institute for Postgraduate Studies and Research, -605008, Puducherry, India.
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Ploidy Status, Nuclear DNA Content and Start Codon Targeted (SCoT) Genetic Homogeneity Assessment in Digitalis purpurea L., Regenerated In Vitro. Genes (Basel) 2022; 13:genes13122335. [PMID: 36553602 PMCID: PMC9777722 DOI: 10.3390/genes13122335] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/28/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Digitalis purpurea L. is a therapeutically important plant that synthesizes important cardiotonics such as digitoxin and digoxin. The present work reports a detailed and efficient propagation protocol for D. purpurea by optimizing various PGR concentrations in Murashige and Skoog (MS) medium. The genetic homogeneity of in vitro regenerants was assessed by the flow cytometric method (FCM) and Start Codon Targeted (SCoT) marker technique. Firstly, the seeds inoculated in full MS medium added with 0.5 mg/L GA3 produced seedlings. Different parts such as hypocotyl, nodes, leaves and apical shoots were used as explants. The compact calli were obtained on BAP alone or in combinations with 2, 4-D/NAA. The hypocotyl-derived callus induced somatic embryos which proliferated and germinated best in 0.75 mg/L BAP-fortified MS medium. Scanning electron microscopic (SEM) images confirmed the presence of various developmental stages of somatic embryos. Shoot regeneration was obtained in which BAP at 1.0 mg/L and 2.0 mg/L BAP + 0.5 mg/L 2,4-D proved to be the best treatments of PGRs in inducing direct and indirect shoot buds. The regenerated shoots showed the highest rooting percentage (87.5%) with 24.7 ± 1.9 numbers of roots/shoot in 1.0 mg/L IBA augmented medium. The rooted plantlets were acclimatized in a greenhouse at a survival rate of 85-90%. The genome size and the 2C nuclear DNA content of field-grown, somatic embryo-regenerated and organogenic-derived plants were estimated and noted to be 3.1, 3.2 and 3.0 picogram (pg), respectively; there is no alteration in ploidy status and the DNA content, validating genetic uniformity. Six SCoT primers unveiled 94.3%-95.13% monomorphic bands across all the plant samples analyzed, further indicating genetic stability among in vitro clones and mother plants. This study describes for the first time successful induction of somatic embryos from hypocotyl callus; and flow cytometry and SCoT marker confirmed the genetic homogeneity of regenerated plants.
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Callus-Mediated High-Frequency Plant Regeneration, Phytochemical Profiling, Antioxidant Activity and Genetic Stability in Ruta chalepensis L. PLANTS 2022; 11:plants11121614. [PMID: 35736765 PMCID: PMC9229613 DOI: 10.3390/plants11121614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 11/17/2022]
Abstract
Efficient methods for callus induction and the high-frequency plant regeneration of Ruta chalepensis L. were established, and the phytochemical potential and antioxidant activity of a donor plant, ex-vitro-established micropropagated plants, and callus were also studied. Yellowish-green callus was induced with a frequency of 97.8% from internode shoot segments of the donor plant growing in soil in the botanical garden cultured on Murashige and Skoog (MS) medium containing 10 μM 2,4-D (2,4-dichlorophenoxyacetic acid) and 1 μM BA (6-benzyladenine). Adventitious shoots were regenerated from the yellowish-green callus on MS medium containing 5.0 μM (BA) and 1.0 μM 1-naphthaleneacetic acid (NAA), with a regeneration frequency of 98.4% and a maximum of 54.6 shoots with an average length of 4.5 cm after 8 weeks. The regenerated shoots were rooted in a medium containing 1.0 μM IBA (indole-3-butyric acid) and successfully transferred to ex vitro conditions in pots containing normal garden soil, with a 95% survival rate. The amounts of alkaloids, phenolics, flavonoids, tannins, and antioxidant activity of the ex-vitro-established micropropagated plants were higher than in the donor plant and callus. The highest contents of hesperidin and rutin (93.3 and 55.9 µg/mg, respectively) were found in the ex-vitro-established micropropagated plants compared to those obtained from the donor plant (91.4 and 31.0 µg/mg, respectively) and callus (59.1 and 21.6 µg/mg, respectively). The genetic uniformity of the ex-vitro-established micropropagated plants was appraised by the ISSR markers and compared with the donor plant. This is the first report describing the callus-mediated plant regeneration, as well as the production of phenolic compounds and antioxidant activities in R. chalepensis, which might be a potential alternative technique for the mass propagation and synthesis of bioactive compounds such as hesperidin and rutin.
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de Sousa PCA, Silva e Souza SS, Nogueira GF, de Araújo Silva-Cardoso IM, Scherwinski-Pereira JE. Indirect somatic embryogenesis of Piper hispidinervum L. and evaluation of the regenerated plants by flow cytometry. J Genet Eng Biotechnol 2022; 20:40. [PMID: 35230554 PMCID: PMC8888786 DOI: 10.1186/s43141-022-00323-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/20/2022] [Indexed: 11/10/2022]
Abstract
Abstract
Background
Piper hispidinervum is a species native from the Amazon region with great economic potential, given its scientifically proven insecticidal properties. In this study, an efficient protocol of plant regeneration via indirect somatic embryogenesis has been established for the first time. In a first experiment, for the induction of calluses, foliar explants of non-discriminated accesses of P. hispidinervum were inoculated in MS medium supplemented with α-naphtalenacetic acid (NAA) and 6-benzylaminopurine (BAP), in different combinations. For a second experiment, foliar explants from five different accesses of P. hispidinervum (PH17, PH21, PH28, PH37, and PH39) were analyzed regarding the formation of calluses when cultivated in MS medium with 5 mg L−1 NAA + 2.5 mg L−1 BAP. To obtain somatic embryos-like structures, calluses were cultivated in MS medium with 10 mg L−1 NAA + 2.5 mg L−1 of BAP. The somatic embryos-like structures obtained were inoculated in MS medium devoid of growth regulators and the plantlets were subjected to acclimatization. Calluses and somatic embryos-like structures were subjected to anatomical analysis and genetic stability of regenerated plants was analyzed by flow cytometry.
Results
The treatments 2.5 mg L−1 BAP and 5 mg L−1 NAA + 2.5 mg L−1 BAP, after 60 days of cultivation, provided each 32% of primary callus, not being verified the formation of calluses in medium devoid of BAP. It was found that accesses differed among them with respect to the formation of primary calluses, with emphasis on accesses PH28, PH37, and PH39, with mean percentage of 95.3%. Regarding the percentage of embryogenic calluses and formation of somatic embryos-like structures, there were no statistical differences between accesses, with mean values of 90.6% and 77.3%, respectively. The somatic embryos-like structures of P. hispidinervum have conspicuous morphoanatomical similarities with the zygotic embryo, and flow cytometry analysis showed no significant variation in nuclear DNA size among plants regenerated in vitro and plants coming from seed germination, which indicates ploidy level stability.
Conclusion
This protocol is the first cited in the literature that demonstrates an efficient micropropagation process by somatic embryogenesis of P. hispidinervum. It can be used either to enable large-scale vegetative production or to subsidize germplasm conservation or genetic engineering of P. hispidinervum.
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Gantait S, Sharangi AB, Mahanta M, Meena NK. Agri-biotechnology of coriander (Coriandrum sativum L.): an inclusive appraisal. Appl Microbiol Biotechnol 2022; 106:951-969. [PMID: 35080667 DOI: 10.1007/s00253-022-11787-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/15/2022] [Accepted: 01/17/2022] [Indexed: 11/27/2022]
Abstract
Bountiful expression of bioactivity of phytochemicals obtained from spice crops like coriander gifts them the label of being natural antioxidants. It is well-accepted and time-tested towards contributing to human wellbeing. The accomplishment of coriander production is fundamentally influenced by genetic, agroclimatic, and agronomic factors. Despite the fact that there are very restricted options to manage the first two factors, the third one is apparently imperative to arbitrate as far as the elevated yield and enhanced quality are concerned. On the other hand, an indomitable, object-oriented, controlled agrotechnological and biotechnological intervention can also contribute towards better yield and quality of coriander. There are several accounts of the successful use of such technologies in order to genetically improve the qualitative and quantitative indicators of coriander. However, often these areas are not comprehensively explored and utilized. In that context, the present review highlights the botanical features, origin and distribution, multi-dimensional importance, pre- and post-harvest crop management, phytochemical production, and germplasm conservation, including the in vitro-based regeneration methods along with molecular marker-based biotechnological and omics approaches attempted in coriander until date. In addition, the possibility of the yet-to-be-explored agri-biotechnological methods and their potential for genetic improvement of this crop has also been reviewed in this appraisal. KEY POINTS: • Coriander, used both as an herb and spice, is popular in the pharmaceutical and culinary industries. • The current review provides insight into agrotechnological and biotechnological interventions for better yield and quality. • Provides novel ideas to harness the comprehensive qualitative and quantitative genetic improvement based on the potential use of promising biotechnological tools and techniques.
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Affiliation(s)
- Saikat Gantait
- Crop Research Unit (Genetics and Plant Breeding), Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India.
| | - Amit Baran Sharangi
- Department of Plantation Spices Medicinal and Aromatic Crops, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India.
| | - Manisha Mahanta
- Crop Research Unit (Genetics and Plant Breeding), Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India
| | - Narottam Kumar Meena
- Indian Council of Agricultural Research-National Research Centre On Seed Spices, Ajmer, 305206, Rajasthan, India
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Direct somatic embryogenesis and flow cytometric assessment of ploidy stability in regenerants of Caladium × hortulanum 'Fancy'. J Appl Genet 2021; 63:199-211. [PMID: 34859368 DOI: 10.1007/s13353-021-00663-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 08/12/2021] [Accepted: 08/30/2021] [Indexed: 11/27/2022]
Abstract
Caladium × hortulanum 'Fancy' is an important ornamental plant grown in pots and landscapes and known for its colorful leaves often used for interior decorations. In this work, we present a method of in vitro regeneration from three explants source through direct somatic embryogenesis (DSE) wherein the regenerated plants were screened for ploidy changes through flow cytometry analysis. Tuber, leaf and petiole explants were cultured on MS basal medium supplemented with 1-napthalene acetic acid (NAA), 6-benzyl amino purine (BAP) and N-phenyl-N'-1, 2,3-thiadiazol-5-ylurea (TDZ) concentrations. Tuber explants induced highest direct somatic embryos on NAA (1 mg L- 1) + BAP (0.5 mg L- 1) with 55.6 mean number of embryos per explant while as leaf and petiole explants amended with 1 mg L- 1 TDZ developed 18.7 and 12.27 mean number of embryos per explant respectively. The highest embryo conversion frequency was achieved on BAP (2 mg L- 1) + NAA (0.2 mg L- 1) with 44.2, 18.7 and 7.5 mean number of plantlets produced per tuber, leaf and petiole explant respectively after 4 weeks of culture. Plantlets were later rooted and maximum number of roots (6.33) per shoot was achieved on 2 mg L- 1 indolebutyric acid amended medium. Description of the process of DSE is presented through the histological and SEM evidences. The 2C DNA content of field grown plants and the DSE regenerants evaluated under flow cytometric analysis were 8.06 pg and 8.28 pg respectively showing no ploidy changes. Hence, a successful protocol of inducing direct somatic embryos from three explant types with efficient embryo conversion frequency was obtained with regenerants showing similar DNA ploidy as that of their parent plants.
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Oliveira JPDM, Ferreira A, Clarindo WR. In Vitro Regeneration of Stable Allotriploid Plantlets of the “Híbrido de Timor” ( Coffea). CYTOLOGIA 2021. [DOI: 10.1508/cytologia.86.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- João Paulo de Morais Oliveira
- Laboratório de Citogenética e Cultura de Tecidos Vegetais, Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo
| | - Adésio Ferreira
- Laboratório de Biometria, Departamento de Agronomia, Universidade Federal do Espírito Santo
| | - Wellington Ronildo Clarindo
- Laboratório de Citogenética e Citometria, Departamento de Biologia Geral, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa
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Comparative Study of the Genetic and Biochemical Variability of Polyscias filicifolia (Araliaceae) Regenerants Obtained by Indirect and Direct Somatic Embryogenesis as a Source of Triterpenes. Int J Mol Sci 2021; 22:ijms22115752. [PMID: 34072251 PMCID: PMC8198449 DOI: 10.3390/ijms22115752] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/18/2021] [Accepted: 05/26/2021] [Indexed: 12/15/2022] Open
Abstract
Polyscias filicifolia (Araliaceae) is broadly used in traditional medicine in Southeast Asia due to its antimicrobial, immunomodulating and cytotoxic activities. The main groups of compounds responsible for pharmacological effects are believed to be oleanolic triterpene saponins. However, Polyscias plants demonstrate relatively slow growth in natural conditions, which led to applying a developing sustainable source of plant material via primary (PSE), secondary (DSE) and direct somatic embryogenesis from DSE (TSE). The AFLP and metAFLP genotyping resulted in 1277 markers, amplified by a total of 24 pairs of selective primers. Only 3.13% of the markers were polymorphic. The analysis of variance showed that the PSE and TSE regenerants differed only in terms of root number, while the DSE plantlets differed for all studied morphological characteristics. Further, the chemical analysis revealed that oleanolic acid (439.72 µg/g DW), ursolic acid (111.85 µg/g DW) and hederagenin (19.07 µg/g DW) were determined in TSE regenerants. Our results indicate that direct somatic embryogenesis ensures the production of homogeneous plant material, which can serve as a potential source of triterpene compounds. Plants obtained via somatic embryogenesis could also be reintroduced into the natural environment to protect and preserve its biodiversity.
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Secondary Somatic Embryogenesis in Centaurium erythraea Rafn. PLANTS 2021; 10:plants10020199. [PMID: 33494461 PMCID: PMC7912690 DOI: 10.3390/plants10020199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/11/2021] [Accepted: 01/14/2021] [Indexed: 12/21/2022]
Abstract
Somatic embryogenesis (SE) is a developmental process during which plant somatic cells, under suitable conditions, produce embryogenic cells that develop into somatic embryos (se). SE is the most important method for plant propagation in vitro, having both fundamental and applicative significance. SE can be induced from different tissues and organs, but when se are used as explants, the process is recognized as secondary or cyclic SE. We induced secondary SE in Centaurium erythraea by application of 2,4-dichlorophenoxyacetic acid (2,4-D) and N-(2-chloro-4-pyridyl)-N′-phenylurea (CPPU). A medium containing 0.1 mgL−1 2,4-D and 0.25 mgL−1 CPPU was optimal in terms of the number of primary SE explants forming se, the number of well-developed se per explant, and morphological appearance of the obtained se. These concentrations allowed SE to progress through three cycles, whereas at higher concentrations of 0.2 mgL−1 2,4-D and 0.5 mgL−1 CPPU, only two cycles were achieved. Histological analysis revealed that secondary se are formed both directly and indirectly. Secondary SE readily germinated and converted into plantlets. Induction of cyclic SE contributes to the conservation efforts of this endangered medicinal plant and expands the spectrum of in vitro developmental pathways described in centaury—an emerging model in developmental biology.
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Mass propagation through direct and indirect organogenesis in three species of genus Zephyranthes and ploidy assessment of regenerants through flow cytometry. Mol Biol Rep 2021; 48:513-526. [PMID: 33442831 DOI: 10.1007/s11033-020-06083-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/10/2020] [Indexed: 12/31/2022]
Abstract
Genus Zephyranthes consists of economically important plant species due to their high ornamental value and presence of valuable bioactive compounds. However, this genus propagates by asexual division only which gives slow propagation rate. Plant tissue culture has the potential to provide efficient techniques for rapid multiplication and genetic improvement of the genus. In this work, a dual in vitro regeneration system through callus mediated shoot regeneration and direct shoot regeneration in species Zephyranthes candida, Zephyranthes grandiflora and Zephyranthes citrina was investigated. Bulb, leaf and root explants were cultured on Murashige and Skoog (MS) medium amended with different plant growth regulators (PGR's) viz. 2,4-dichlorophenoxyacetic acid (2,4-D), 1-Naphthalene acetic acid (NAA), 6-benzyl amino purine (BAP), N-phenyl-N'-1,2,3 -thiadiazol-5-ylurea (TDZ), 6-Furfuryl- aminopurine (KIN) alone or in combinations for callus induction and regeneration. Only bulb explants showed callus induction and regeneration response on different PGR combinations with a varied response in callus induction percentage, callus color and callus texture. Creamish compact callus (CC) was induced on 2 mg L[Formula: see text] 2,4-D, brown friable callus (BF) on 2 mg L[Formula: see text] NAA + 1 mg L[Formula: see text] BAP and green friable callus (GF) callus on 1 mg L[Formula: see text] KIN + 3 mg L[Formula: see text] NAA. The maximum shoot multiplication from different callus types (indirect organogenesis) was achieved on 2 mg L[Formula: see text] BAP alone without combinations. Bulb explants of Z. grandiflora induced maximum callus induction percentage (86.4%) and shoot regeneration percentage (83.5%) with the maximum 08 shoots per 150 mg callus mass. The induction and regeneration response was followed in the order of Z. grandiflora > Z. candida > Z. citrina. Similarly, maximum direct organogenesis from bulb explants was obtained in Z. grandiflora (93.3%) followed by Z. candida (91.5%) and Z. citrina (90.4%) on 3 mg L[Formula: see text] TDZ amended MS media. Adventitious root induction was achieved on 2 mg L[Formula: see text] IBA with a maximum of 8 roots per shoot. The in vitro raised plantlets were successfully acclimatized in the field with 85% survival efficiency. The genome size (2C DNA content) of the field-grown plants and in vitro regenerated plants, evaluated through flow cytometry technique, were similar and showed no ploidy changes. An efficient mass propagation protocol was established for obtaining plants with unaltered genome size in the three species of Zephyranthes.
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Somatic Embryogenesis from Mature Embryos of Olea europaea L. cv. 'Galega Vulgar' and Long-Term Management of Calli Morphogenic Capacity. PLANTS 2020; 9:plants9060758. [PMID: 32560502 PMCID: PMC7355655 DOI: 10.3390/plants9060758] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 02/07/2023]
Abstract
Several olive cultivars, characterized by high-quality olive oil show agronomical issues such as excessive vigor, high susceptibility to biotic and abiotic stresses, and low propagation ability. They are strong candidates for breeding based on new technologies to improve their performance in a short period of time. For this reason, the first step is developing efficient somatic embryogenesis (SE) protocols. Somatic embryogenesis in olive is highly genotype-dependent for both adult tissues and mature embryos as initial explants, requiring the development of specific protocols for each genotype. Trials using cotyledons and radicles as initial explants, isolated from ripe seeds from the Portuguese olive cv. ‘Galega vulgar’, gave more than 95% calli development. Radicles proved to be the most responsive tissue for SE induction, with an average of 2 embryos per callus after callus transfer to expression medium, and 14 embryos per callus after subculture on the olive cyclic embryogenesis medium (ECO). Embryogenic competence could be recovered after several subcultures on ECO medium that maintained cyclic embryogenesis for an indeterminate period of time. Embryo conversion and plant acclimatization were also attained with high success rates. Media management for cyclic embryogenesis maintenance is of general importance for SE protocols in any olive genotype. Somatic embryogenesis was thus attained for the first time in embryo-derived explants of cv. ‘Galega vulgar’.
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Genome size analysis of field grown and somatic embryo regenerated plants in Allium sativum L. J Appl Genet 2020; 61:25-35. [PMID: 31919659 DOI: 10.1007/s13353-019-00536-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 12/16/2019] [Accepted: 12/27/2019] [Indexed: 12/11/2022]
Abstract
In the present study, an efficient in vitro propagation protocol has been developed from clove explants of Allium sativum L., one of the oldest vegetable and medicinal plant used worldwide. Garlic is propagated vegetatively as cross-fertilization is strictly precluded due to sterile flowers. Due to a low rate of multiplication, limited genetic improvement possibility and increased germplasm degradation, plant tissue culture becomes an efficient and preferred tool for quality and rapid propagation of garlic. Here, the clove explants were cultured on Murashige and Skoog basal medium amended with different concentrations of Plant Growth Regulators (PGRs) namely 2,4-dichlorophenoxy acetic acid (2,4-D), 6-benzyl amino purine (BAP), and 1-naphthalene acetic acid (NAA). Within 2 weeks of inoculation, white compact callus was formed, maximum callus induction frequency (85.99%) was on 1.5 mg l-1 2, 4-D added MS medium. Induced callus transformed into an embryogenic callus on 2, 4-D and BAP amended MS medium with highest embryogenic frequency (77.7%) was noted on 0.25 mg l-1 2, 4-D and 1.0 mg l-1 BAP added medium. Embryogenic callus differentiated into progressive stages of somatic embryos starting from globular, scutellar, and finally to coleoptilar stage of the embryo. Histological and scanning electron microscopic study of embryogenic callus was conducted, showing different stages of embryos, their origin and development, re-confirming somatic embryogenesis incidence in A. sativum. Green and mature somatic embryos were germinated and converted into plantlets on 0.5 mg l-1 BAP amended MS medium. The in vitro regenerated plants were cultured separately in IBA and NAA supplemented media for root induction. The MS medium amended with 1.0 mg l-1 IBA proved to be the best PGR treatment in inducing roots. The rooted plants were acclimatized and transferred ex vitro with about 87% survival rate. Cytological and flow cytometric analyses were performed to assess the genetic stability of in vitro regenerated plants. Cytological studies of in vitro regenerated plants showed 2n = 16 chromosome number and did not reveal any numerical variation in chromosomes. Flow cytometry was employed to measure the 2C DNA content of somatic embryo regenerated A. sativum plants and compared with in vivo grown garlic. The histogram peaks of relative 2C DNA content of in vitro regenerated plantlets were similar to the corresponding 2C DNA peak of in vivo grown plants. Flow cytometric 2C DNA content of embryo regenerated and field-grown A. sativum plants were the same, i.e., 33.45 pg and 33.56 pg, respectively, confirming genetic similarity. In conclusion, the present cytological and flow cytometric study suggest that the in vitro culture conditions are quite safe, did not encourage genetic alterations, and regenerants were "true to type."
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Ren X, Liu Y, Jeong BR. Enhanced Somatic Embryo Induction of a Tree Peony, Paeonia ostii 'Fengdan', by a Combination of 6-benzylaminopurine (BA) and 1-naphthylacetic Acid (NAA). PLANTS 2019; 9:plants9010003. [PMID: 31861360 PMCID: PMC7020195 DOI: 10.3390/plants9010003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/15/2019] [Accepted: 12/17/2019] [Indexed: 12/02/2022]
Abstract
Somatic embryogenesis is a preferred method for vegetative propagation due to its high propagation efficiency. In this study, zygotic embryos, cotyledons, and hypocotyls of Paeonia ostii ‘Fengdan’ were used as the explant to induce somatic embryogenesis. The results showed that a combination of 0.5 mg·L−1 thidiazuron (TDZ) and 0.5 mg·L−1 2,4-dichlorophenoxyacetic acid (2,4-D) was effective in inducing somatic embryos from the zygotic embryo and cotyledon explants. Hypocotyls only formed somatic embryos on Murashige and Skoog (MS) medium supplemented with both 0.5 mg·L−1 TDZ and 0.5 mg·L−1 1-naphthylacetic acid (NAA). Moreover, the compact callus was effectively produced from zygotic embryo, cotyledon, and hypocotyl explants in medium supplemented with a combination of 3.0 mg·L−1 6-benzylaminopurine (BA) and 1.0 mg·L−1 NAA, and then converted into somatic embryos in the same medium, and the ratio of the explants with embryo induction and number of embryos induced per explant were much higher than those induced by 0.5 mg·L−1 TDZ and either 0.5 mg·L−1 2,4-D or 0.5 mg·L−1 NAA. The MS medium was better than the woody plant medium (WPM) for inducing somatic embryos from zygotic embryo and hypocotyl explants, whereas the WPM was better than the MS medium for somatic embryogenesis induction from cotyledon explants. All of the somatic embryos developed well into mature embryos on their respective media supplemented with both 3.0 mg·L−1 BA and 1.0 mg·L−1 NAA. Overall, the protocols for indirect somatic embryogenesis from zygotic embryo, cotyledon, and hypocotyl of P. ostii ‘Fengdan’ were successfully established, which can greatly facilitate their propagation and breeding processes.
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Affiliation(s)
- Xiuxia Ren
- Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea; (X.R.); (Y.L.)
| | - Ya Liu
- Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea; (X.R.); (Y.L.)
| | - Byoung Ryong Jeong
- Division of Applied Life Science (BK21 Plus Program), Graduate School of Gyeongsang National University, Jinju 52828, Korea; (X.R.); (Y.L.)
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea
- Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea
- Correspondence: ; Tel.: +82-55-772-1913
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Tulsani NJ, Hamid R, Jacob F, Umretiya NG, Nandha AK, Tomar RS, Golakiya BA. Transcriptome landscaping for gene mining and SSR marker development in Coriander (Coriandrum sativum L.). Genomics 2019; 112:1545-1553. [PMID: 31505244 DOI: 10.1016/j.ygeno.2019.09.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/22/2019] [Accepted: 09/06/2019] [Indexed: 12/12/2022]
Abstract
Coriander (Coriandrum sativum L.) is an aromatic herb, widely used as a spice and is of great pharmaceutical interest. Despite high medicinal and economic value, there is a dearth of genomic information about profiling as well as the expressed sequence-based genic markers. In this study, transcriptome was sequenced from seeds, leaves, and flower for gene mining and identification of SSR markers. A total of 9746 SSR containing loci were identified, the most abundant type of SSR identified were the di-nucleotide repeat motifs (45.5%), followed by tri- (34.6%), tetra- (4.5%), penta- (1.5%) and hexanucleotide repeats (1%). A total of 3795 primers were designed, out of which 120 randomly selected were validated in 14 accessions of coriander cultivated in India. The current study provides useful information about preliminary transcriptome sketch and genic markers, which can be useful in breeding and genetic diversity estimation of coriander.
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Affiliation(s)
- Nilam J Tulsani
- Department of Animal Biotechnology, College of Veterinary Science and Animal Husbandry, Anand Agricultural University, Anand, Gujarat, India
| | - Rasmieh Hamid
- Department of Biotechnology and Plant Breeding, Ferdowsi University of Mashhad, Iran.
| | - Feba Jacob
- Centre for Plant Biotechnology and Molecular Biology, Kerala Agricultural University, Thrissur, India
| | - Nimita G Umretiya
- Food Quality Testing Laboratory, Navsari Agricultural University, Navsari 396445, India
| | - Abhijeeta K Nandha
- Department of Genetics and plant breeding, College of Agriculture, Parul University, Baroda 390019, India
| | - Rukam S Tomar
- Department of Biotechnology and Biochemistry, Junagadh Agricultural University, Junagadh, Gujarat, India
| | - Balaji A Golakiya
- Department of Biotechnology and Biochemistry, Junagadh Agricultural University, Junagadh, Gujarat, India
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Irradiance and light quality affect two annatto (Bixa orellana L.) cultivars with contrasting bixin production. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 197:111549. [DOI: 10.1016/j.jphotobiol.2019.111549] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/23/2019] [Accepted: 07/03/2019] [Indexed: 12/21/2022]
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High-Efficiency Somatic Embryogenesis from Seedlings of Koelreuteria paniculata Laxm. FORESTS 2018. [DOI: 10.3390/f9120769] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Research Highlights: In the current study, we established a method for plant regeneration via somatic embryogenesis (SE) in Koelreuteria paniculata Laxm. for the first time. Background and Objectives: K. paniculata is an important ornamental and medicinal plant in China. However, the plant has difficulty with asexual reproduction, which imposes a limitation on large-scale propagation. Materials and Methods: Embryogenic calluses were induced from stems of aseptic seedlings on induction media. The effects of different media types and concentrations of N6-benzyladenine (BA), α-naphthaleneacetic acid (NAA), and 2,4-dichlorophenoxyacetic acid (2,4-D) on callus induction were examined. Embryogenic calluses were then transferred to Driver-Kuniyuki Walnut (DKW) media containing NAA (0.1–0.2 mg L−1) or 2,4-D (0.5–2.0 mg L−1) to develop somatic embryos. Cotyledon embryos were cultured on DKW media containing NAA (0.1–0.2 mg L−1) until maturation, and were then transferred to 1/2 DKW medium supplemented with 1.0 mg L−1 indole-3-butyric acid (IBA) to produce complete plants. The effects of IBA and NAA on rhizogenesis were then examined by clonal culture. Results: The maximum callus induction frequency (80.25%) was obtained on DKW medium supplemented by 0.5 mg L−1 BA, 0.25 mg L−1 NAA, and 1.5 mg L−1 2,4-D. NAA had a more pronounced effect on somatic embryo growth than did 2,4-D, with a maximum SE frequency (54.75%) observed with 0.1 mg L−1 NAA added to DKW medium. For clonal culture, the highest rooting rate (52%) was observed on 1/4 DKW medium containing 1.5 mg L−1 IBA. Histology studies confirmed the presence of embryogenic calluses and somatic embryos in different stages. Conclusions: This protocol provides a novel method for large-scale propagation of K. paniculata, and creates opportunities for genetic engineering in this species.
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Osorio-Montalvo P, Sáenz-Carbonell L, De-la-Peña C. 5-Azacytidine: A Promoter of Epigenetic Changes in the Quest to Improve Plant Somatic Embryogenesis. Int J Mol Sci 2018; 19:E3182. [PMID: 30332727 PMCID: PMC6214027 DOI: 10.3390/ijms19103182] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 10/09/2018] [Accepted: 10/10/2018] [Indexed: 02/06/2023] Open
Abstract
Somatic embryogenesis (SE) is a widely studied process due to its biotechnological potential to generate large quantities of plants in short time frames and from different sources of explants. The success of SE depends on many factors, such as the nature of the explant, the microenvironment generated by in vitro culture conditions, and the regulation of gene expression, among others. Epigenetics has recently been identified as an important factor influencing SE outcome. DNA methylation is one of the most studied epigenetic mechanisms due to its essential role in gene expression, and its participation in SE is crucial. DNA methylation levels can be modified through the use of drugs such as 5-Azacytidine (5-AzaC), an inhibitor of DNA methylation, which has been used during SE protocols. The balance between hypomethylation and hypermethylation seems to be the key to SE success. Here, we discuss the most prominent recent research on the role of 5-AzaC in the regulation of DNA methylation, highlighting its importance during the SE process. Also, the molecular implications that this inhibitor might have for the increase or decrease in the embryogenic potential of various explants are reviewed.
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Affiliation(s)
- Pedro Osorio-Montalvo
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 x 32 y 34, Col. Chuburná de Hidalgo, 97205 Mérida, Yucatán, Mexico.
| | - Luis Sáenz-Carbonell
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 x 32 y 34, Col. Chuburná de Hidalgo, 97205 Mérida, Yucatán, Mexico.
| | - Clelia De-la-Peña
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 x 32 y 34, Col. Chuburná de Hidalgo, 97205 Mérida, Yucatán, Mexico.
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Konar S, Karmakar J, Ray A, Adhikari S, Bandyopadhyay TK. Regeneration of plantlets through somatic embryogenesis from root derived calli of Hibiscus sabdariffa L. (Roselle) and assessment of genetic stability by flow cytometry and ISSR analysis. PLoS One 2018; 13:e0202324. [PMID: 30133505 PMCID: PMC6105006 DOI: 10.1371/journal.pone.0202324] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 08/01/2018] [Indexed: 11/19/2022] Open
Abstract
Induction of somatic embryogenesis and complete plantlet regeneration from callus culture of Hibiscus sabdariffa L. var. HS4288 has been made. Leaf and root explants were cultured on Murashige and Skoog (MS) and Driver–Kuniyuki Walnut (DKW) basal media supplemented with different concentrations of synthetic auxins and cytokinins. Root explants on DKW medium supplemented with 2.26μM 2, 4-Dichlorophenoxyacetic acid (2, 4-D) and 4.65μM kinetin (KIN) induced highest percentage (70%) of embryogenic calli. Average number of globular embryos per root derived callus produced within 6 weeks of culture initiation on MS media with different plant growth regulators (PGRs) ranged from 2.27±0.12 to 8.80±0.17 and that of cotyledonary embryos ranged from 0.00 to 2.53±0.20. On DKW medium comparatively more globular embryos (2.70±0.15 to 14.53±0.23) and cotyledonary embryos (0.00 to 8.90±0.17) were produced than that of MS medium. Regeneration of complete plantlets was highest (76.67%) when embryogenic calli with mature somatic embryos were grown on DKW medium containing 2.32μM KIN and 2.22μM 6-Benzyladenine (BA). Plants were primarily hardened in humidity, temperature and light controlled chamber and finally in a greenhouse showed 70% survival ability. Different stages of somatic embryogenesis process in the root derived embryogenic calli were elaborated in detail by morphological, histological and SEM study. The data were statistically analyzed by Duncan Multiple range test (p ≤ 0.05) and Principal component analysis (PCA). Flow cytometry and Inter-simple sequence repeats (ISSR) marker analysis confirmed that there was no genetic variation within the regenerated plants.
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Affiliation(s)
- Saptarshi Konar
- Department of Molecular Biology and Biotechnology, University of Kalyani,West Bengal, India
| | - Joydeep Karmakar
- Department of Molecular Biology and Biotechnology, University of Kalyani,West Bengal, India
| | - Anirban Ray
- Department of Molecular Biology and Biotechnology, University of Kalyani,West Bengal, India
| | | | - Tapas Kumar Bandyopadhyay
- Department of Molecular Biology and Biotechnology, University of Kalyani,West Bengal, India
- * E-mail: , ,
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Raji MR, Lotfi M, Tohidfar M, Zahedi B, Carra A, Abbate L, Carimi F. Somatic embryogenesis of muskmelon (Cucumis melo L.) and genetic stability assessment of regenerants using flow cytometry and ISSR markers. PROTOPLASMA 2018; 255:873-883. [PMID: 29248969 DOI: 10.1007/s00709-017-1194-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Accepted: 12/02/2017] [Indexed: 05/20/2023]
Abstract
A new protocol for in vitro regeneration through direct somatic embryogenesis for two muskmelon cultivars (Cucumis melo L., "Mashhadi" and "Eivanaki") is reported. Somatic embryos were obtained culturing 4- and 8-day-old cotyledons, seeds, and hypocotyls on Murashige and Skoog medium supplemented with three different hormonal combinations never tested so far for melon (naphthoxyacetic acid (NOA) + thidiazuron (TDZ), NOA + 6-banzylaminopurine (BAP), and 2,4-dichlorophenoxyacetic acid (2,4-D) + N-(2-chloro-4-pyridyl)-N'-phenylurea (4-CPPU)). Results were compared with those obtained when explants were cultivated in the presence of 2,4-D + BAP, previously used on melon. Embryogenesis occurred more successfully in 4-day-old cotyledons and seeds than hypocotyls and 8-day-old cotyledons. The best result was achieved with NOA + BAP. Genotypes significantly affected embryogenesis. The number of embryos in "Eivanaki" was significantly higher than that in "Mashhadi." Embryo proliferation when explants were maintained in jars (9.3%) was found to be higher compared to that in petri dishes. For the first time, genetic stability of regenerated melon plants was evaluated using inter-simple sequence repeat markers. Polymerase chain reaction (PCR) products demonstrated a total of 102 well-resolved bands, and regenerants were 93% similar compared to the mother plant. Somaclonal changes during embryogenesis were evaluated by flow cytometry, showing 91% of the same patterns in regenerated plants. The results suggest that the new hormone components are effective when applied for in vitro embryogenesis of muskmelon as they show a high frequency in regeneration and genetic homogeneity.
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Affiliation(s)
- Mohammad Reza Raji
- Department of Horticulture, Faculty of Genetics and breeding of vegetables, University of Tehran, Pakdasht, Tehran, 3391653775, Iran
| | - Mahmoud Lotfi
- Department of Horticulture, Faculty of Genetics and breeding of vegetables, University of Tehran, Pakdasht, Tehran, 3391653775, Iran.
| | - Masoud Tohidfar
- Department of Plant Biotechnology, Faculty of Life Science and Biotechnology. G. C., Shahid Beheshti University, Tehran, Iran
| | - Bahman Zahedi
- Department of Horticulture, Faculty of Genetics and breeding of vegetables, Lorestan University, Khorramabad, Lorestan, 6813717133, Iran
| | - Angela Carra
- National Research Council of Italy (CNR), Institute of Biosciences and Bioresources (IBBR), 414, I-90129, Palermo, Italy
| | - Loredana Abbate
- National Research Council of Italy (CNR), Institute of Biosciences and Bioresources (IBBR), 414, I-90129, Palermo, Italy
| | - Francesco Carimi
- National Research Council of Italy (CNR), Institute of Biosciences and Bioresources (IBBR), 414, I-90129, Palermo, Italy
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