{"title":"南美欧米加属植物化感作用潜力的初步研究(禾本科:穿心莲科)","authors":"Fernando Moro Cordobés, A. Anton, L. R. Scrivanti","doi":"10.17129/botsci.3188","DOIUrl":null,"url":null,"abstract":"Background: A significant number of species of grasses (Poaceae) have allelopathic properties and two genera of Andropogoneae -Cymbopogon and Bothriochloa- are the main aromatic genera recognized in the family. The genus Imperata (Poaceae: Andropogoneae) is widely distributed, with several species being present around the world. \nQuestions and / or Hypotheses: This study assessed the allelopathic potential of some South American species of Imperata taking into account previous reports on I. cylindrica, which has been extensively studied due to its invasiveness and allelopathic potential. \nStudied species / data description /Mathematical model: I. brasiliensis, I. condensata, I. minutiflora, and I. tenuis \nStudy site and dates: Greenhouse of the Instituto Multidisciplinario de Biología Vegetal, Sistemática y Filogeografía de Plantas, Córdoba, Argentina. \nMethods: We obtain the aqueous extract from the studied species and we evaluated its effect on germination and root and shoot growth of lettuce, corn, and tomato. \nResults: In bioassays, aqueous leaf extract of I. brasiliensis, I. condensata, I. minutiflora, and I. tenuis inhibited seed germination and root and shoot growth of lettuce (Lactuca sativa), tomato (Solanum lycopersicum), and maize (Zea mays). The extracts mainly affected root and shoot length, whereas the effect on seed germination was low. \nConclusions: The studied species may contain allelochemicals, which interfere with seed germination and seedling growth. Future research on the type of chemical compounds present in aqueous extracts may contribute to their use for agroecological purposes.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preliminary report on the allelopathic potential of South American Imperata species (Poaceae: Andropogoneae)\",\"authors\":\"Fernando Moro Cordobés, A. Anton, L. R. Scrivanti\",\"doi\":\"10.17129/botsci.3188\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Background: A significant number of species of grasses (Poaceae) have allelopathic properties and two genera of Andropogoneae -Cymbopogon and Bothriochloa- are the main aromatic genera recognized in the family. The genus Imperata (Poaceae: Andropogoneae) is widely distributed, with several species being present around the world. \\nQuestions and / or Hypotheses: This study assessed the allelopathic potential of some South American species of Imperata taking into account previous reports on I. cylindrica, which has been extensively studied due to its invasiveness and allelopathic potential. \\nStudied species / data description /Mathematical model: I. brasiliensis, I. condensata, I. minutiflora, and I. tenuis \\nStudy site and dates: Greenhouse of the Instituto Multidisciplinario de Biología Vegetal, Sistemática y Filogeografía de Plantas, Córdoba, Argentina. \\nMethods: We obtain the aqueous extract from the studied species and we evaluated its effect on germination and root and shoot growth of lettuce, corn, and tomato. \\nResults: In bioassays, aqueous leaf extract of I. brasiliensis, I. condensata, I. minutiflora, and I. tenuis inhibited seed germination and root and shoot growth of lettuce (Lactuca sativa), tomato (Solanum lycopersicum), and maize (Zea mays). The extracts mainly affected root and shoot length, whereas the effect on seed germination was low. \\nConclusions: The studied species may contain allelochemicals, which interfere with seed germination and seedling growth. 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引用次数: 0
摘要
背景:禾本科植物中有相当数量的种具有化感作用,其中两属(cymbopogon和Bothriochloa)是该科中公认的主要芳香属。Imperata属(Poaceae: andropogonae)分布广泛,在世界各地有几个种类。问题和/或假设:本研究评估了一些南美的白茅属物种的化感作用潜力,并考虑了以往关于白茅属的报道,白茅属因其入侵性和化感作用潜力而被广泛研究。研究物种/数据描述/数学模型:巴西种、巴西种、minutiflora和巴西种。研究地点和日期:Biología植物研究所多学科温室,Sistemática y Filogeografía de Plantas, Córdoba,阿根廷。方法:从所研究的植物中提取水提物,并评价其对生菜、玉米和番茄发芽和根茎生长的影响。结果:在生物试验中,巴西菊、白花菊、细叶菊和细叶菊的水提物对莴苣、番茄和玉米的种子萌发和根茎生长均有抑制作用。提取物主要影响根长和芽长,对种子萌发的影响较小。结论:所研究的植物可能含有化感物质,影响种子萌发和幼苗生长。对水提取物中存在的化合物类型的未来研究可能有助于其在农业生态目的中的应用。
Preliminary report on the allelopathic potential of South American Imperata species (Poaceae: Andropogoneae)
Background: A significant number of species of grasses (Poaceae) have allelopathic properties and two genera of Andropogoneae -Cymbopogon and Bothriochloa- are the main aromatic genera recognized in the family. The genus Imperata (Poaceae: Andropogoneae) is widely distributed, with several species being present around the world.
Questions and / or Hypotheses: This study assessed the allelopathic potential of some South American species of Imperata taking into account previous reports on I. cylindrica, which has been extensively studied due to its invasiveness and allelopathic potential.
Studied species / data description /Mathematical model: I. brasiliensis, I. condensata, I. minutiflora, and I. tenuis
Study site and dates: Greenhouse of the Instituto Multidisciplinario de Biología Vegetal, Sistemática y Filogeografía de Plantas, Córdoba, Argentina.
Methods: We obtain the aqueous extract from the studied species and we evaluated its effect on germination and root and shoot growth of lettuce, corn, and tomato.
Results: In bioassays, aqueous leaf extract of I. brasiliensis, I. condensata, I. minutiflora, and I. tenuis inhibited seed germination and root and shoot growth of lettuce (Lactuca sativa), tomato (Solanum lycopersicum), and maize (Zea mays). The extracts mainly affected root and shoot length, whereas the effect on seed germination was low.
Conclusions: The studied species may contain allelochemicals, which interfere with seed germination and seedling growth. Future research on the type of chemical compounds present in aqueous extracts may contribute to their use for agroecological purposes.
期刊介绍:
Botanical Sciences welcomes contributions that present original, previously unpublished results in Botany, including disciplines such as ecology and evolution, structure and function, systematics and taxonomy, in addition to other areas related to the study of plants. Research reviews are also accepted if they summarize recent advances in a subject, discipline, area, or developmental trend of botany; these should include an analytical, critical, and interpretative approach to a specific topic. Acceptance for reviews will be evaluated first by the Review Editor. Opinion Notes and Book Reviews are also published as long as a relevant contribution in the study of Botany is explained and supported.