Gametophyte development and conservation of Ctenitis submarginalis (Dryopteridaceae) in Buenos Aires Province, Argentina

IF 0.6 4区生物学 Q4 PLANT SCIENCES

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-12-15 DOI:10.31055/1851.2372.V52.N4.18857

J. R. Giacosa, D. A. Gorrer, G. Giudice, M. L. Luna

引用次数: 7

Abstract

The spore germination and gametophyte development of Ctenitis submarginalis from Punta Lara Natural Reserve, Buenos Aires province were studied as a contribution to the conservation of the species in this protected area. Spores collected from natural populations were sowing in Dyer medium and germinated in six day with a percentaje of 88 % fifteen days after sowing. The germination is Vittaria type and the gametophyte development is Aspidium type. The gametophyte of Ctenitis submarginalis is cordate, with a deep notch and well developed and symmetric wings. The gametangia appear 50 days after sowing. The sporophyte emerges 190 days after sowing and two different hairs were observed in the first lamina. The in-vitro spore germination is a successful method for obtaining numerous sporophytes of Ctenitis submarginalis. The sporophytes obtained were gradually acclimated, transplanted to its natural habitat in the reserve and will be monitored frequently to contribute to the conservation of the species.

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阿根廷布宜诺斯艾利斯省毛蕨科毛毡蕨配子体发育与保护

对阿根廷蓬塔拉拉自然保护区的亚边缘毛毡毡(Ctenitis submarginalis)孢子萌发和配子体发育进行了研究，以期对该保护区的物种保护做出贡献。从自然群体中收集孢子，在Dyer培养基上播种，6天后萌发，播种15天后萌发率为88%。萌发为vitia型，配子体发育为Aspidium型。近缘毛蕊的配子体是心形的，有一个深的缺口和发育良好的对称的翅。配子囊在播种后50天出现。孢子体在播种后190天萌发，在第一层上观察到两根不同的毛。体外孢子萌发是一种获得大量芽孢体的成功方法。获得的孢子体逐渐适应，移植到保护区的自然栖息地，并将经常监测，以促进物种的保护。

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

Boletin De La Sociedad Argentina De Botanica PLANT SCIENCES-

CiteScore

1.00

自引率

33.30%

发文量

审稿时长

>12 weeks

期刊介绍： Bol. Soc. Argent. Bot. publishes original scientific works from the whole spectrum of Plant Biology (structure, anatomy, development, physiology, cytology, genetics, evolution, ecology, paleobotany, palynology, ethnobotany, etc.) in the diverse vegetable organisms and related groups (mycology, ficology, lichenology, briology, etc.), both in basic and applied aspects. Taxonomic works (of systematics, phylogeny, monographs, revisions, lectotypifications, nomenclatural acts, descriptions of taxa), phytogeographic and phytosociological works (survey and classification of vegetation at different spatial scales and without restriction of methodological approaches) are considered for publication. Contributions that address complete phytogeographic units or sub-units and those that fill gaps in knowledge of vegetation in little-known territories are especially welcome. Extensions of geographical areas are published only when it comes to new citations for a country. Checklists and lists of annotated plants are not published. Articles submitted for publication must be original and must not have been submitted to another publisher or previously published (print or electronic format). Submissions of papers already published in another language will not be accepted (autoplagio for translation).