Rare teratologies in natural populations of Ophioglossum L exhibiting development of spores on tropophylls (leaves)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-05 DOI:10.1007/s40415-024-00986-0

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Abstract

A few biotypes (plants possessing abnormal features) of Goswamia costata Zhang and Zhang, partly resembling Ophioglossum rubellum Welw. ex A. Braun, are presented out of which finding of the development of spores on the tropophyll (leaf) of plants is exceedingly important.

Most alarming feature is that the spores on leaves do not resemble spores produced by the sporangia in the sporophore (fertile spike) of the parent plant, a trait only so far described by the senior author more than two decades ago on margins of Ophioglossum eliminatum Khandelwal and Goswami and Ophioglossum costatum A Br, (now—Goswamia eliminata Zhang and Zhang; Goswamia costata Zhang and Zhang, respectively). The repeated observations of development of spores in cluster on the margins of tropophyll (leaf) from altogether different regions and localities in a different species do confirm that genes for the production of sporangia on the leaves are inherent within the genome of ophioglossaceous genera. Preliminary SEM investigations on spores have revealed unique secondary extensions of exine ornamentations with tubular outgrowths, never reported in any of the ophioglossaceous species.

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Ophioglossum L 自然种群中罕见的畸形，表现为孢子在叶片上发育

摘要本文介绍了 Goswamia costata Zhang 和 Zhang 的一些生物型（具有异常特征的植物），这些生物型部分类似于 Ophioglossum rubellum Welw.最令人震惊的是，叶片上的孢子与母株孢子囊（可育穗状花序）中的孢子囊产生的孢子并不相似，这一特征迄今为止只有资深作者在二十多年前对 Ophioglossum eliminatum Khandelwal 和 Goswami 以及 Ophioglossum costatum A Br（分别为现在的 Goswamia eliminata Zhang 和 Zhang；Goswamia costata Zhang 和 Zhang）的边缘进行过描述。从不同地区和不同地点对不同物种滋养叶（叶片）边缘孢子群发育的反复观察，确实证实了在叶片上产生孢子囊的基因是ophioglossaceous 属植物基因组中固有的。对孢子进行的初步扫描电子显微镜研究发现，外皮装饰的次生延伸具有独特的管状突起，这在任何鹅掌菌属物种中都从未报道过。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.