Morphoanatomical alterations in extrafloral nectaries of Cedrela fissilis Vell. (Meliaceae), a native species of the Atlantic Forest, in response to simulated acid rain

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-08-22 DOI:10.1016/j.flora.2024.152586

Franklin Patrocínio Rezende, Luzimar Campos da Silva

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引用次数: 0

Abstract

Acid rain is one of the major contributors to the loss of tropical forest. Although the effects of acid rain in leaf anatomy have been widely studied, its impact on specialized secretory structures remains unknown. The aim of this study was to investigate the morphoanatomical changes in the extrafloral nectaries of Cedrela fissilis in response to simulated acid rain. Each seedling was sprayed with 50 ml of an acidic solution daily for 19 consecutive days. Anatomical and micromorphological changes in the nectaries were described. The treated plants exhibited plasmolysis and disruption of epidermal cells, cell collapse, hypertrophy, plasmolysis, phenolic and starch accumulation in the nectar-secreting cells, and the formation of a wound healing tissue. The results indicate that the nectaries of C. fissilis undergo alterations when exposed to acid rain, which may compromise the functioning of the entire structure and potentially impact plant-insect ecological interactions.

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Cedrela fissilis Vell.（ Meliaceae）花外蜜腺的形态解剖学变化对模拟酸雨的响应(大西洋森林中的原生物种 Cedrela fissilis Vell（瓜菜科）对模拟酸雨的反应

酸雨是热带森林消失的主要原因之一。尽管酸雨对叶片解剖结构的影响已被广泛研究，但其对特化分泌结构的影响仍不为人知。本研究旨在调查 Cedrela fissilis 花外蜜腺在模拟酸雨下的形态解剖变化。每株幼苗连续 19 天每天喷洒 50 毫升酸性溶液。对蜜腺的解剖和微观形态变化进行了描述。经处理的植物表现出表皮细胞浆解和破坏、细胞崩溃、肥大、浆解、分泌花蜜的细胞中酚类和淀粉积累以及伤口愈合组织的形成。研究结果表明，当暴露在酸雨中时，C. fissilis 的蜜腺会发生变化，这可能会损害整个结构的功能，并可能影响植物与昆虫之间的生态相互作用。

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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.