Morpho-anatomical and biochemical characterization of Strelitzia reginae seeds and embryos

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-09-01 DOI:10.1590/2447-536x.v28i3.2456

Marisa Taniguchi, P. Paiva, Diogo Pedrosa CorrÃªa da Silva, F. Nery, R. Paiva, Michele Valquíria dos Reis

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引用次数: 1

Abstract

Abstract Strelitzia or bird-of-paradise, is an important tropical ornamental plant that is difficult to propagate because of seed dormancy issues and the low number of seedlings obtained from plant divisions. With greater knowledge of its structure, it is possible to develop strategies to improve the propagation process for this species, since information on this subject is currently limited. Thus, the objective was to carry out an anatomical, morphological and biochemical characterization of Strelitzia reginae seeds and embryos. The characterization of the seeds was performed through image analysis using GroundEye equipment, X-rays, and anatomical and biochemical analyses. Additionally, the following biometric characteristics of the seeds were obtained: an area of 0.33 cm2, a maximum diameter of 0.736 cm, a maximum lateral diameter of 0.59 cm, a minimum diameter of 0.58 cm, and a perimeter of 2.47 cm. The seeds of S. reginae can be considered starchy since they contain 15% starch. By integument anatomical analysis, we observed the presence of an exotesta (ex) and a posterior parenchymatic layer that was divided into a mesotest (m) and endotest (en). The characterization of Strelitzia reginae seeds and embryos showed relevant observations for the taxonomy and physiology of this species. The seeds are aleurostarches and present an area of 0.33 cm2 on average, with maximum lateral diameter of 0.59 cm. As result of anatomical studies, it was possible to determine coat responsible for integument dormancy.

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strelizia reginae种子和胚的形态解剖和生化特征

摘要streleitzia或称天乐鸟，是一种重要的热带观赏植物，由于种子休眠问题和植物分裂获得的幼苗数量少而难以繁殖。随着对其结构的更多了解，有可能制定策略来改善该物种的繁殖过程，因为目前关于这一主题的信息有限。因此，目的是对streelitia reginae种子和胚胎进行解剖、形态和生化表征。通过使用GroundEye设备、x射线、解剖和生化分析进行图像分析，对种子进行了表征。此外，获得了种子的以下生物特征:面积为0.33 cm2，最大直径为0.736 cm，最大横向直径为0.59 cm，最小直径为0.58 cm，周长为2.47 cm。葡萄籽可以被认为是淀粉类，因为它们含有15%的淀粉。通过被皮解剖分析，我们观察到外壁层(ex)和后实质层的存在，后实质层分为中壁层(m)和内壁层(en)。对streelitzia reginae种子和胚胎的研究为该物种的分类和生理学提供了相关的观察结果。种子为淀粉质，平均面积为0.33 cm2，最大外径为0.59 cm。由于解剖研究的结果，有可能确定负责被盖休眠的被毛。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.