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      Características estructurales del cistocarpo de Gelidium serrulatum J. Agardh (Gelidiales, Rhodophyta) Translated title: Structural characteristics of the cystocarp of Gelidium serrulatum J. Agardh (Gelidiales, Rhodophyta)

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          Abstract

          Gelidium serrulatum es una Rhodophyta endémica de la costa este del mar Caribe que, por la calidad del agar, podría ser manejada, de allí su importancia. El conocimiento taxonómico de esta especie se basa en aspectos externos, pero su morfología externa cambia en el laboratorio; por ello, se propuso estudiar en las características del cistocarpo, que es una de las estructuras más estables de las agarofitas. Se colectaron organismos en punta Guarapo del Caribe venezolano, realizándose cortes histológicos y criofractura para microscopía electrónica de barrido. El cistocarpo es bicon- vexo, biostiolar y bilocular, con compartimientos simétricos. Su región cortical tiene una sola capa de células y la subcortical 5-6 filas, que proyectan filamentos corticales perpendiculares al carpos- porofito. Son estructuras provistas de una cutícula y los ostiolos se presentan taponados. Presenta carpogonios intercalares en la región subcortical, fructificando varios en un mismo cistocarpo, y los carposporangios son individuales.

          Translated abstract

          Gelidium serrulatum is a Rhodophyta endemic to the east coast of the Caribbean Sea which, due to the quality of the agar, could be managed, hence its importance. The taxonomic knowledge of this species is based on external aspects, but its external morphology changes in the laboratory; there- fore, it was proposed to study the characteristics of the cystocarp, which is one of the most stable structures of the agarophytes. Organisms were collected in Punta Guarapo of the Venezuelan Carib- bean, with histological sections and cryofracture for scanning electron microscopy. The cystocarp is biconvex and bilocular, with symmetrical compartments. Its cortical region has a single layer of cells and the subcortical 5-6 rows, which project cortical filaments perpendicular to the carposporophyte. They are structures equipped with a cuticle and the ostioles are plugged. It presents intercalary carpogones in the subcortical region, fruiting several in the same cystocarp, and the carposporangia are individual.

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          Present and future needs for algae and algal products

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            Flora marinha do litoral norte do estado de São Paulo e regiões circunvizinhas

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              Agar yield, quality and standing crop biomass of Gelidium serrulatum, Gelidium floridanum and Pterocladia capillacea in Venezuela

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                Author and article information

                Contributors
                Role: ND
                Journal
                arnal
                Arnaldoa
                Arnaldoa
                Universidad Privada Antenor Orrego, Museo de Historia Natural (Trujillo, , Peru )
                1815-8242
                2413-3299
                May 2019
                : 26
                : 2
                : 675-688
                Affiliations
                [1] Chimbote orgnameUniversidad Nacional del Santa orgdiv1Escuela de Biología en Acuicultura PERÚ rloayza@ 123456uns.edu.pe
                Article
                S2413-32992019000200010
                10.22497/arnaldoa.261.26210
                9720146c-8342-470b-b190-a2ae0dfa7449

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 10 April 2019
                : 18 May 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 60, Pages: 14
                Product

                SciELO Peru

                Categories
                Artículos originales

                Gelidium serrulatum,cistocarpo,carpogonio,Gelidiales,cystocarp,carpogonium

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