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首页> 外文期刊>Anais da Academia Brasileira de Ciencias >Histological features, starch accumulation and sprouting in the early root development of Jacaranda ulei(Bignoniaceae)
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Histological features, starch accumulation and sprouting in the early root development of Jacaranda ulei(Bignoniaceae)

机译：兰花car属植物（Bignoniaceae）早期根发育的组织学特征，淀粉积累和发芽

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摘要

The plant species occurring in the savanna region of the Cerrado biome in Brazil present typical morphological and physiological adaptations to a dry climate with seasonal occurrence of wildfires. In this study, the histological features of the root system, the main sites of synthesis and storage of starch and the initial phases of the bud development were characterized inJacaranda ulei. The anatomical features observed in the root system of J. ulei are related to the needs of the species to survive in the Cerrado. The histochemical analyses demonstrated high synthesis of glucose and glycoprotein after the third day of in vitro culture, in the proximal cells of the cortical parenchyma of the exoderm. Meristematic primordia were observed in the ninth day and the beginning of the meristem formation was observed after 21 days of in vitro culture. Jacaranda ulei displays morphological, anatomical and storage features typical from resprouter species. However, it may be vulnerable to unsustainable exploitation. Considering the importance of this species for local people, more studies regarding its therapeutic properties should be performed, including the planning of appropriate programs for the species management and the production of selected clones through in vitro micropropagation.
机译：巴西Cerrado生物群落的热带稀树草原地区出现的植物物种具有典型的形态和生理适应能力，可以适应干燥的气候以及季节性的野火。在本研究中，对Jacaranda ulei的根系的组织学特征，淀粉的合成和储存的主要部位以及芽的发育初期进行了表征。在欧莱雅根系中观察到的解剖特征与该物种在塞拉多生存的需要有关。组织化学分析表明，体外培养第三天后，在外皮层皮质实质的近端细胞中葡萄糖和糖蛋白的高合成。在第九天观察到分生原基，在体外培养21天后观察到分生组织的开始。蓝花car显示出生殖器物种典型的形态，解剖学和贮藏特征。但是，它可能容易受到不可持续的利用。考虑到该物种对当地人的重要性，应进行更多有关其治疗特性的研究，包括规划适当的物种管理计划以及通过体外微繁殖生产所选克隆。

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