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Dubas E, Krzewska M, Surówka E, Kopeć P, Springer A, Janowiak F, Weigt D, Mikołajczyk SK, Telk A, Żur I. New Prospects for Improving Microspore Embryogenesis Induction in Highly Recalcitrant Winter Wheat Lines. PLANTS (BASEL, SWITZERLAND) 2024; 13:363. [PMID: 38337896 PMCID: PMC10857491 DOI: 10.3390/plants13030363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/02/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024]
Abstract
Among various methods stimulating biological progress, double haploid (DH) technology, which utilizes the process of microspore embryogenesis (ME), is potentially the most effective. However, the process depends on complex interactions between many genetic, physiological and environmental variables, and in many cases, e.g., winter wheat, does not operate with the efficiency required for commercial use. Stress associated with low-temperature treatment, isolation and transfer to in vitro culture has been shown to disturb redox homeostasis and generate relatively high levels of reactive oxygen species (ROS), affecting microspore vitality. The aim of this study was to investigate whether controlled plant growth, specific tiller pre-treatment and culture conditions could improve the potential of microspores to cope with stress and effectively induce ME. To understand the mechanism of the stress response, hydrogen peroxide levels, total activity and the content of the most important low-molecular-weight antioxidants (glutathione and ascorbate), as well as the content of selected macro- (Mg, Ca, NA, K) and micronutrients (Mn, Zn, Fe, Cu, Mo) were determined. These analyses, combined with the cytological characteristics of the microspore suspensions, allowed us to demonstrate that an increased microspore vitality and stronger response to ME induction were associated with higher stress resistance based on more efficient ROS scavenging and nutrient management. It was shown that a modified procedure, combining a low temperature with mannitol and sodium selenate tiller pre-treatment, reduced oxidative stress and improved the effectiveness of ME in winter wheat lines.
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Affiliation(s)
- Ewa Dubas
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Monika Krzewska
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Ewa Surówka
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Przemysław Kopeć
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Agnieszka Springer
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Franciszek Janowiak
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Dorota Weigt
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., 60-632 Poznań, Poland; (D.W.); (S.K.M.)
| | - Sylwia Katarzyna Mikołajczyk
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., 60-632 Poznań, Poland; (D.W.); (S.K.M.)
| | - Anna Telk
- Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland;
| | - Iwona Żur
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
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Elhiti M, Stasolla C. Transduction of Signals during Somatic Embryogenesis. PLANTS (BASEL, SWITZERLAND) 2022; 11:178. [PMID: 35050066 PMCID: PMC8779037 DOI: 10.3390/plants11020178] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/30/2021] [Accepted: 01/07/2022] [Indexed: 05/05/2023]
Abstract
Somatic embryogenesis (SE) is an in vitro biological process in which bipolar structures (somatic embryos) can be induced to form from somatic cells and regenerate into whole plants. Acquisition of the embryogenic potential in culture is initiated when some competent cells within the explants respond to inductive signals (mostly plant growth regulators, PRGs), and de-differentiate into embryogenic cells. Such cells, "canalized" into the embryogenic developmental pathway, are able to generate embryos comparable in structure and physiology to their in vivo counterparts. Genomic and transcriptomic studies have identified several pathways governing the initial stages of the embryogenic process. In this review, the authors emphasize the importance of the developmental signals required for the progression of embryo development, starting with the de-differentiation of somatic cells and culminating with tissue patterning during the formation of the embryo body. The action and interaction of PGRs are highlighted, along with the participation of master regulators, mostly transcription factors (TFs), and proteins involved in stress responses and the signal transduction required for the initiation of the embryogenic process.
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Affiliation(s)
- Mohamed Elhiti
- Department of Botany, Faculty of Science, Tanta University, Tanta 31527, Egypt;
| | - Claudio Stasolla
- Department of Plant Science, University of Manitoba, Winnipeg, MB R3T2N2, Canada
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Żur I, Kopeć P, Surówka E, Dubas E, Krzewska M, Nowicka A, Janowiak F, Juzoń K, Janas A, Barna B, Fodor J. Impact of Ascorbate-Glutathione Cycle Components on the Effectiveness of Embryogenesis Induction in Isolated Microspore Cultures of Barley and Triticale. Antioxidants (Basel) 2021; 10:1254. [PMID: 34439502 PMCID: PMC8389252 DOI: 10.3390/antiox10081254] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 12/12/2022] Open
Abstract
Enhanced antioxidant defence plays an essential role in plant survival under stress conditions. However, excessive antioxidant activity sometimes suppresses the signal necessary for the initiation of the desired biological reactions. One such example is microspore embryogenesis (ME)-a process of embryo-like structure formation triggered by stress in immature male gametophytes. The study focused on the role of reactive oxygen species and antioxidant defence in triticale (×Triticosecale Wittm.) and barley (Hordeum vulgare L.) microspore reprogramming. ME was induced through various stress treatments of tillers and its effectiveness was analysed in terms of ascorbate and glutathione contents, total activity of low molecular weight antioxidants and activities of glutathione-ascorbate cycle enzymes. The most effective treatment for both species was a combination of low temperature and exogenous application of 0.3 M mannitol, with or without 0.3 mM reduced glutathione. The applied treatments induced genotype-specific defence responses. In triticale, both ascorbate and glutathione were associated with ME induction, though the role of glutathione did not seem to be related to its function as a reducing agent. In barley, effective ME was accompanied by an accumulation of ascorbate and high activity of enzymes regulating its redox status, without direct relation to glutathione content.
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Affiliation(s)
- Iwona Żur
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Przemysław Kopeć
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Ewa Surówka
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Ewa Dubas
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Monika Krzewska
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Anna Nowicka
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Franciszek Janowiak
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Katarzyna Juzoń
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Agnieszka Janas
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (P.K.); (E.S.); (E.D.); (M.K.); (A.N.); (F.J.); (K.J.); (A.J.)
| | - Balázs Barna
- Plant Protection Institute, Centre for Agricultural Research, Herman Ottó út 15, 1022 Budapest, Hungary; (B.B.); (J.F.)
| | - József Fodor
- Plant Protection Institute, Centre for Agricultural Research, Herman Ottó út 15, 1022 Budapest, Hungary; (B.B.); (J.F.)
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Cho SH, Kim SR, Jeong MS, Choi M, Park S, Kim KN. Protective Effect of Brassica napus L. Hydrosols against Inflammation Response in RAW 264.7 Cells. Chin J Integr Med 2021; 27:273-279. [PMID: 33759044 DOI: 10.1007/s11655-021-3330-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2019] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To demonstrate the anti-inflammatory activity of Brassica napus L. hydrosols (BNH) in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells. METHODS Composition analysis of BNH was conducted via gas chromatography-mass spectrometry after BNH were extracted. The nitric oxide (NO) production was measured using the Griess assay. Prostaglandin E2 (PGE2) production was evaluated with enzyme-linked immunosorbent assay. The effects of BNH on LPS-induced pro-inflammatory enzymes including inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) were evaluated using Western blot analysis. Furthermore, phosphorylation of nuclear factor-kappa B (NF-κB) and nuclear translocation of NF-κB p65 were evaluated with Western blot analysis and immunofluorescence staining, respectively. RESULTS Compared with LPS-stimulated cells, BNH markedly decreased the generation of NO and PGE2 in LPS-stimulated RAW 264.7 cells (P<0.01 or P<0.05). Moreover, BNH inhibited protein levels of iNOS and COX-2 (P<0.01). Phosphorylation of NF-κB and nuclear translocation of NF-κB p65 was significantly inhibited by BNH (P<0.01 or P<0.05). CONCLUSION The anti-inflammatory activities of BNH were mediated via blockage of the NF-κB signaling pathways in LPS-stimulated RAW 264.7 cells.
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Affiliation(s)
- Su-Hyeon Cho
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, Republic of Korea
| | - Song Rae Kim
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, Republic of Korea
| | - Myeong Seon Jeong
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, Republic of Korea
| | - Miri Choi
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, Republic of Korea
| | - SeonJu Park
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, Republic of Korea
| | - Kil-Nam Kim
- Chuncheon Center, Korea Basic Science Institute, Chuncheon, 24341, Republic of Korea.
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Elahi N, Duncan RW, Stasolla C. Effects of altered expression of LEAFY COTYLEDON1 and FUSCA3 on microspore-derived embryogenesis of Brassica napus L. J Genet Eng Biotechnol 2016; 14:19-30. [PMID: 30647593 PMCID: PMC6299903 DOI: 10.1016/j.jgeb.2016.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/18/2016] [Accepted: 05/01/2016] [Indexed: 12/04/2022]
Abstract
Brassica napus (Bn) microspore-derived embryogenesis has become a model system to study basic aspects of plant development. Recognized transcription factors governing embryogenesis include: FUSCA3 (FUS3), a member of the plant-specific B3-domain family, and LEAFY COTYLEDON1 (LEC1), a member of the HAP3 subunit of the CCAAT binding factor family. The effects of altered expression of both genes were investigated during microspore-derived embryogenesis in established B. napus lines over-expressing or down-regulating BnLEC1, as well as in tilling lines where BnFUS3 was mutated. While over-expression of BnLEC1 decreases the yield of microspore-derived embryos (MDEs) without affecting their ability to regenerate plants, suppression of BnLEC1 or BnFUS3 reduced both embryo number and regeneration frequency. Embryos produced by these lines showed structural abnormalities accompanied by alterations in the expression of several embryogenesis-marker genes. Oil accumulation was also altered in the transgenic MDEs. Total oil content was increased in MDEs over-expressing BnLEC1 and decreased in those suppressing BnLEC1 or BnFUS3. Mutation of BnFUS3 also resulted in a small but significant increase in linoleic (C18:2) acid. Together this study demonstrates the crucial role of BnLEC1 and BnFUS3 during in vitro embryogenesis.
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Affiliation(s)
| | | | - Claudio Stasolla
- Dept. Plant Science, University of Manitoba, Winnipeg R3T 2N2, Canada
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Paul P, Chaturvedi P, Selymesi M, Ghatak A, Mesihovic A, Scharf KD, Weckwerth W, Simm S, Schleiff E. The membrane proteome of male gametophyte in Solanum lycopersicum. J Proteomics 2016; 131:48-60. [DOI: 10.1016/j.jprot.2015.10.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 09/21/2015] [Accepted: 10/08/2015] [Indexed: 12/11/2022]
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