仙人掌科附生植物的花粉形态。来自巴西的里约热内卢Grande do Sul

IF 0.4 4区生物学 Q4 Agricultural and Biological Sciences

Iheringia Serie Botanica Pub Date : 2017-09-29 DOI:10.21826/2446-8231201772205

Rodrigo Rodrigues Cancelli, Ivan Cabral Menezes, P. A. Souza

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引用次数: 5

摘要

对巴西南部南里奥格兰德州附生仙人掌科11种植物的花粉形态进行了研究。我们提供描述、测量、显微照片以及生态学和生物地理学的信息。花粉粒大小不一(中、大和巨大)，具有长球状到长形;3-colpate孔径(Lepismium crucformme)进行筛选。(Rhipsalis cereuscula Haw.)和6-colpate(剩余种);外壁具顶盖和小颗粒质地和穿孔;除了叶兰(Epiphyllum phyllanthus, L.)唧唧、椰子树上覆盖着一层薄薄的颗粒膜;L. houlletianum (Lem.)气孔的异型性Barthlott, L.变暖(K. Schum)观察Barthlott和Rhipsalis campos-portoana Loefgr。结果表明，该分类群存在两种形态模式:第一种(I)与3孔花粉粒有关，第二种(II)与6孔花粉粒有关

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Morfologia polínica de espécies epífitas de Cactaceae Juss. do Rio Grande do Sul, Brasil

In this paper, we studied the pollen morphology of 11 species of epiphytic Cactaceae family in Rio Grande do Sul, southern Brazil. We provide descriptions, measurements, photomicrographs, as well as information on ecology and biogeography. The pollen grains are variable in size (medium, large and giant) with prolate-spheroidal to prolate forms; 3-colpate aperture ( Lepismium cruciforme (Vell.) Miq. and Rhipsalis cereuscula Haw.) and 6-colpate (remaining species); exine with tectum and small granulate texture and perforations; except for Epiphyllum phyllanthus (L.) Haw, colpi are covered by thin granulate membrane; heteromorphism in the apertures of L. houlletianum (Lem.) Barthlott, L. warmingianum (K. Schum.) Barthlott and Rhipsalis campos-portoana Loefgr was observed. Results indicate two morphological patterns in the study taxa: the fi rst (I) is related to pollen grains with 3-colpate aperture and second (II) with 6-colpate aperture

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来源期刊

Iheringia Serie Botanica PLANT SCIENCES-

CiteScore

0.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Iheringia, Série Botânica is a publication edited by the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, since 1958. The name Iheringia is actually a tribute to Hermann von Ihering (a German researcher who became a Brazilian citizen) and his important studies in the Natural Sciences.The journal has the mission of publishing articles, reviews and original scientific notes that cover diverse areas in Botany, and may be written in Portuguese, Spanish and English. The journal is widely available in both international and national scientific community. The issues are published and distributed twice a year to 118 national institutions and 152 international institutions. The distribution is either free of charge or by exchange. Impac Factor JCR 2014/2015 = 0.263 Qualis CAPES 2015: B 4 (Biodiversity) B1 (Agricultural Science I) B1 (Environment)