期刊
JOURNAL OF MARINE SCIENCE AND ENGINEERING
卷 9, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/jmse9010006
关键词
Sargassum spp; cell wall; histological study; polyphenols complex aromatic
This study is the first to report lignified cells forming the secondary cell wall in Sargassum species. Histological techniques were used to identify lignin-like tissues and provide insights into the unique cell wall architecture of these seaweeds. The study identified the presence, absence, and distribution of lignin and cellulose in conductive tissue of Sargassum spp. using dyes such as Safranin O and Toluidine.
In recent years, the massive influx of pelagic Sargassum spp. has generated great interest in the scientific community, highlighting the urgency of addressing the physiology and biochemical composition of these species. Until now, the presence of lignified cells in the tissue of Sargassum natans and Sargassum fluitans has not been reported. Although ''lignin-like'' compounds have been identified in green algae, the presence of true lignin in the Sargassum genus has not been confirmed. Our work is the first report of lignified cells forming the secondary cell wall in these Sargassum. This study used histological techniques applied to thick sections for identifying lignin-like tissues in Sargassum spp. The dyes as Safranin O and Toluidine have been used to differentiate lignin and cellulose in conducting tissue and to indicate the presence, absence, and distribution of these compounds in tissues. This work is the initial study of the cell wall heteropolymers structure and arrangement in Sargassum spp., providing insights into the unique cell wall architecture of these seaweeds.
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