Exogenous abscisic acid impacts the development of isolated immature endosperm in bread wheat
Plant Cell, Tissue and Organ Culture, ISSN: 1573-5044, Vol: 147, Issue: 3, Page: 599-610
2021
- 9Captures
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Metrics Details
- Captures9
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Article Description
Endosperm in cereals such as wheat, is a part of the mature seeds and a valuable source of key substances for humans and animals. For this reason, the development of immature endosperm tissues in planta was the focus of this research. However, it is commonly known that tissue culture conditions can alter the developmental pathway of plant cells and can expose their potency. There is scarce information about research on isolated endosperm in wheat. The development of isolated immature endosperm in the winter bread wheat variety ‘Kobra’, depending on the media composition, is presented in this study. Abscisic acid (ABA) is a key plant growth regulator for proper seed development. The addition of exogenous ABA had a positive impact on the size and ultrastructural features in isolated endosperm, especially of the outer aleurone-like cells. Furthermore, the content of starch in the endosperm cultured on a medium with ABA did not significantly differ from that of caryopsis at the same age, in contrast to soluble carbohydrates. Fluorescein diacetate (FDA) staining and confocal microscopy observation confirmed the viability of the cells from the outer layers. The analysis of internucleosomal fragmentation of DNA in the explants suggests the induction of programmed cell death (PCD) and DNA degradation typical of necrosis. We concluded that the development of isolated immature endosperm in bread wheat depends on the composition of the media. Thus, it could be a model for in vitro studies of this specific storage tissue and its response to culture conditions in bread wheat.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85113155283&origin=inward; http://dx.doi.org/10.1007/s11240-021-02151-x; https://link.springer.com/10.1007/s11240-021-02151-x; https://link.springer.com/content/pdf/10.1007/s11240-021-02151-x.pdf; https://link.springer.com/article/10.1007/s11240-021-02151-x/fulltext.html; https://dx.doi.org/10.1007/s11240-021-02151-x; https://link.springer.com/article/10.1007/s11240-021-02151-x
Springer Science and Business Media LLC
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