Potential role of somatic embryo-generated synthetic seed production on mass propagation of recalcitrant grain legume crops in Sub-Saharan Africa – A review article
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Abstract
This paper reviews the potential role of synthetic seed production as another avenue for obtaining genetic variability, averting recalcitrance and fleeting seed viability challenges in legume species. Synthetic seeds, also known as synseeds or artificial seeds produced via somatic embryogenesis are also crucial for successful plant establishment and an important determinant of plant productivity, especially in recalcitrant legume species. Recalcitrant seeds are commonly characterised by a rapid moisture loss and reduced seed longevity, which further impose physiological/biochemical changes, that reduce seed viability, germinability and seedling vigour. The production of these kinds of seeds would perform a fundamental role in ensuring cheap and rapid supply of genetic resources to breeders and seed propagules for farmers in Sub-Saharan Africa. Furthermore, this approach would ultimately maximise crop yield and offer a tremendous potential for micropropagation and germplasm preservation of recalcitrant legume species in this region. This review analyses such a variety of applications and benefits of plant biotechnology in the African context, and highlights important advantages such as genetic uniformity, simplified handling, storage, efficient distribution etc. that could be of immeasurable benefit to the seed value chain in agriculture, particularly for rural communities in developing countries
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References
Awosanmi, F. E., Ajayi, S. A. and Baffoe, E. E. (2020). Influence of seed moisture content on short term storage of cowpea (Vigna unguiculata L. Walp) seeds. Agriculturae Conspectus Scientificus, 85:37-42.
Azarkovich, M. I. (2016). Stress-induced proteins in recalcitrant seeds during deep dormancy and early germination. In Biotic and Biotic Stress in Plants- Recent Advances and Future Perspectives., Shanker, A. and Shanker, C., ed., IntechOpen, United States, London, pp.317-335.
Bailly, C. (2019). The signalling role of ROS in the regulation of seed germination and dormancy. Biochemistry Journal, 476:3019-3032.
Barbedo, C. J. (2018) A new approach towards the so-called recalcitrant seeds. Journal of Seed Sciences, 40:221-236.
Baskaran, P. and Jayabalan, N. (2005) In vitro plant regeneration and mass propagation system for Sorghum bicolor- A valuable major cereal crop. Journal of Agricultural Technology, 1:345-364.
Bereke, T. (2018). Biology of seed development and germination physiology. Advances in Plants and Agricultural Research, 8:336-346.
Berjak, P. and Pammenter, N. W. (2013). Implications of the lack of desiccation tolerance in recalcitrant seeds. Frontiers in Plant Sciences, 478:1-9.
Bhatia, S. (2015). Application of plant biotechnology. In Modern Applications of Plant Biotechnology in Pharmaceutical Sciences, eds., Bhatia, S., Sharma, K., Dahiya, R. and Bera, T., Academic Press, pp.157-207.
Cabrera-Ponce, J. L., Gonzalez-Gomez, I., Leon-Ramirez, C., Sanchez-Arrequin, J. A. and yGarfias, A. E. J. (2018). Somatic embryogenesis in common bean Phaseolus vulgaris L. In Plant Cell Culture Protocols- Methods in Molecular Biology., Loyola-Vergas, V. and Ochoa-Alejo, N., ed., Humana Press, United States, New York, Volume 1815, pp. 189-203.
Capstuff, N. M. and Miller, A. J. (2018). Improving the yield and nutritional quality of forage crops. Frontiers in Plant Science, 9:535.
Celmeli, T., Sari, H., Adak, H. C. D. S. A. and Eker, T. (2018). The nutritional content of common bean (Phaseolus vulgaris L.) landraces in comparison to modern varieties. Agronomy, 8:166.
Dreger, M., Mol, R., Deja, A., Raj, E., Mankowska, G. and Wielgus, K. (2019). Improved plant regeneration in callus cultures of Sorghum bicolor (L.) Moench. In Vitro Cellular and Developmental Biology- Plant, 55:190-198.
Etemadi, F., Hashemic, M., Barker, A. V., Zandvakili, O. R. and Liu, X. (2019). Agronomy, nutritional value and medical application of faba bean (Vicia faba L.). Horticultural Plant Journal, 5:170-182.
Faria, J. M. R. (2006) Desiccation tolerance and sensitivity in Medicago truncatula and Inga vera seeds. (PhD Thesis). Wageningen University, Netherlands.
Finch-Savage, W. E. and Bassel, G. W. (2016). Seed vigour and crop establishment: Extending performance beyond adaptation. Journal of Experimental Botany, 67:567-591.
Gashu, D., Demment, M. W. and Stoecket, B. J. (2019). Challenges and opportunities to the African agriculture and food systems. African Journal of Food, Agriculture, Nutrition and Development, 19:1490-14217.
Gray, D. J. (2005). Propagation from non-meristematic tissues: Non-zygotic embryogenesis. In Plant Development and Biotechnology., Trigiano, R.N. and Gray, D.J., CRC Press, United States, New York, pp.187-200.
Hartmann, H. T., Kester, D. E., Davies, F. T. and Geneve, R. L. (2014). Hartmann & Kerster’s Plant Propagation Principles and Practices, 8th ed.; Pearson Education Limited, United States, New York, pp.670-724.
Hnatuszko-Konka, K., Kowalczyk, T., Gerszberg, A., Wiktorek-Smagur, A. and Kononowicz, A. (2014). Phaseolus vulgaris- Recalcitrant potential. Biotechnology Advances, 34:1205-1215.
Imran, M. and Nadeem, M. (2015). Triacylglycerol composition, physico-chemical characteristics and oxidative stability of interestified canola oil and fully hydrogenated cottonseed oil blends. Lipids in Health and Diseases, 14:138.
Islam, M., Roly, Z. Y., Lee, Y. and Khalekuzzaman, Md. (2014). In vitro propagation and genetic transformation system using immature embryos in elite rice (Oryza sativa L.) cultivars. Plant Breeding and Biotechnology, 2:88-96.
Jarpa-Parra, M. (2017). Lentil protein: A review of functional properties and food application. An overview of lentil protein functionality. International Journal of Food Science + Technology, 53:892-903.
Kumar, S. P. J., Prasad, S. R., Banerjee, R. and Thammineni, C. (2015). Seed birth to death: dual functions of reactive oxygen species in seed physiology. Annals of Botany, 116:663-668.
Leprince, O., Harren, F. J. M., Buitink, J., Alberda, M. and Hoekstra, F. A. (2000). Metabolic dysfunction and unabated respiration precede the loss of membrane integrity during dehydration of germinating radicles. Plant Physiology, 122:597-608.
Liu, L., Li, J., Zhu, Y., Jones, A., Rose, R. J. and Song, Y. (2019). Heat stress in legume seed setting: Effects, causes, and future prospects. Frontiers in Plant Sciences, 10:938.
Liu, W., Liang, Z., Wang, X., Sibbald, S., Hunter, D. and Tian, L. (2013). Presentation and faithful expression of transgene via artificial seeds in alfalfa. PLoS One 8:e56699.
Lu, Z. K., He, J. F., Zhang, Y. C. and Ding, D. J. (2019). Composition, phytochemical properties of pea protein and its application in functional foods. Critical Reviews in Food Sciences and Nutrition, pp.1-13.
Mangena, P. (2020a). Effect of hormonal seed priming on germination, growth, yield and biomass allocation in soybean grown under induced drought stress. Indian Journal of Agricultural Research, 2020:1-7.
Mangena, P. (2020b). In vivo and in vitro application of colchicine on germination and shoot proliferation in soybean [Glycine max (L.) Merr.]. Asian Journal of Crop Sciences, 12:34-42.
Mangena, P. and Mokwala, P. W. (2019). The influence of seed viability on the germination and in vitro multiple shoot regeneration of soybean (Glycine max L.). Agriculture, 9:35.
Molnar, A. V., Sonkoly, J., Lovas-Kiss, A., Fekete, R., Takacs, A., Somlyay, L. and Terok, P. (2015). Seed of the threatened annual legume, Astragalus comtortuplicatus, can survive 130 years of dry storage. Preslia, 87:319-328.
Obroucheva, N., Sinkevich, I. and Lityagina, S. (2016). Physiological aspects of seed recalcitrance: A case study on the tree Aesculus hippocastanum. Tree Physiology, 36:1127-1150.
Organisation for Economic Co-operation and Development (OECD) and the Food and Agriculture Organisation (FAO) of the United Nations. (2019) OECD-FAO Agricultural Outlook 2019-2018. OECD-FAO, pp.1-140.
Petrov, V. D. and Van Breusegem, F. (2012). Hydrogen-peroxide- a central hub for information flow in plant cells. AoB PLANTS 014.
Popoola, J., Ojuederies, O., Omonhinmin, C. and Adegbite, A. (2019). Neglected and underutilised legume crops: Importance and future prospects. In Recent Advances in Grain Crops Research, eds., Shah, F., Khan, Z., Iqbal, A., Turan, M. and Olgun. M., Intech Open, United Kingdom, London, pp.1-23.
Ravi, D. and Anand, P. (2012). Production and application of artificial seeds: A review. International Research Journal of Biological Sciences, 1:74-78.
Raza, G., Singh, M. B. and Bhalla, P. L. (2020). Somatic embryogenesis and plant regeneration from commercial soybean cultivars. Plants, 9:38.
Rihan, H. Z., Kareen, F., El-Mahrouk, M. E and Fuller, M. P. (2017). Artificial seeds (Principle, aspects and applications). Agronomy, 17:71.
Rose, R. J. (2019). Somatic embryogenesis in the Medicago truncatula model: Cellular and molecular mechanisms. Frontiers in Plant Sciences, 10:267.
Shi, Z., Yao, Y., Zhu, Y. and Ren, G. (2016). Nutritional composition and antioxidant activity of twenty mung bean cultivars in China. Crop Journal, 4:398-406.
Shimeles, A., Verdier-Chouchane, A. and Boly, A. (2013). Introduction: Understanding the challenges of the agricultural sector in Sub-Saharan Africa. In Building a Resilient and Sustainable Agriculture in Sub-Saharan Africa by Shimeles, A., Verdier-Chouchene, A. and Boly, A., Palgrave Macmillan, Cham, pp.1-12.
Snapp, S., Rahmanian, M. and Batello, C. (2018). Pulse crops for sustainable farms in Sub-Saharan Africa. FAO, Rome, pp.1-60.
Solomon, S. G., Okomodu, V. T. and Oda, S. O. (2017). Nutritional value of toasted pigeon pea, Cajanus cajan seed and its utilisation in the diet of Clarias gariepinus (Burcell, 1822) fingerlings. Aquaculture Reports, 7:34-39.
Taha, R. M., Daud, N., Hasbullah, N. A. and Awal, A. (2009). Somatic embryogenesis and production of artificial seeds in Saintpaulia ionantha Wendl. Acta Horticulturae, 829:331-336.
Van Loon, M. P., Deng, N., Grassini, P., Edreira, J. I. R., Wolde-meskel, E., Baijukya, F., Marrou, H. and van Ittersum, M. K. (2018). Prospect for increasing grain legume crop production in East Africa. European Journal of Agronomy, 101:140-148.
Vorpsi, V., Rama, P. and Hodaj, B. (2012). The use of corn starch on in vitro propagation of plum. Albanian Journal of Agricultural Sciences, 11:169-172.
Yasmin, S., Khan, I. A., Khatri, A., Seema, N., Nizamani, G. S. and Arain, M. A. (2009). In vitro plant regeneration in bread wheat (Triticum aestivum L.). Pakistan Journal of Botany, 41:2869-2876.
Zhang, L., Zhao, H. K., Dong, Q. L., Zhang, Y. Y., Wang, Y. M., Li, H. Y., Xing, G. J., Li, Q. Y. and Dong, Y. S. (2015). Genome-wide analysis and expression profiling under heat and drought treatments of HSP70 gene family in soybean (Glycine max L.). Frontiers in Plant Sciences, 6:773.