Results 41 to 50 of about 772 (167)

A Novel κ-Carrageenase from Marine Bacterium Rhodopirellula sallentina SM41: Heterologous Expression, Biochemical Characterization and Salt-Tolerance Mechanism Investigation

Marine Drugs, 2022
κ-carrageenases are members of the glycoside hydrolase family 16 (GH16) that hydrolyze sulfated galactans in red algae, known as κ-carrageenans. In this study, a novel κ-carrageenase gene from the marine bacterium Rhodopirellula sallentina SM41 (RsCgk ...
Yong-Hui Zhang, Yi-Ying Chen, Xiao-Yan Zhuang, Qiong Xiao, Jun Chen, Fu-Quan Chen, Qiu-Ming Yang, Hui-Fen Weng, Bai-Shan Fang, An-Feng Xiao   +9 more
doaj   +1 more source

Revisiting the life cycle of Margalefidinium polykrikoides Group III

Journal of Phycology, EarlyView.
Abstract Dinoflagellates produce cysts as a strategy to withstand environmental stressors, with nutrient depletion generally considered a key trigger for cyst production. Resting cysts are thick‐walled, typically composed of one to several layers, and characterized by a prolonged dormancy period.
Eduardo Pérez‐Vega, Kenneth N. Mertens, Pjotr Meyvisch, Margaret R. Mulholland   +3 more
wiley   +1 more source

Antithrombotics from the Sea: Polysaccharides and Beyond

Marine Drugs, 2019
Marine organisms exhibit some advantages as a renewable source of potential drugs, far beyond chemotherapics. Particularly, the number of marine natural products with antithrombotic activity has increased in the last few years, and reports show a wide ...
Francisca Carvalhal, Ricardo R. Cristelo, Diana I. S. P. Resende, Madalena M. M. Pinto, Emília Sousa, Marta Correia-da-Silva   +5 more
doaj   +1 more source

Crystal structure of endo‐β‐1,6‐galactanase from Streptomyces avermitilis

Acta Crystallographica Section D, Volume 82, Issue 8, Page 962-971, August 2026.
The crystal structure of S. avermitilis endo‐β‐1,6‐galactanase belonging to GH30 subfamily 5 reveals the first structural framework for endo‐β‐1,6‐galactanase. The β‐1,6‐galactobiose‐bound complex identifies the catalytic subsites and a distal secondary sugar‐binding site, providing insight into β‐1,6‐galactan recognition.Endo‐β‐1,6‐galactanases ...
Zui Fujimoto, Naomi Kishine, Toshihisa Kotake, Satoshi Kaneko   +3 more
wiley   +1 more source

Glyco‐Nanogels for Modulating Pseudomonas aeruginosa Biofilm

Macromolecular Rapid Communications, Volume 47, Issue 14, 20 July 2026.
Nanogels presenting α‐galactose and β‐fucose can significantly alter Pseudomonas aeruginosa biofilm dynamics through their interaction with lectins. Application timing is crucial: pre‐treatment reduces biofilm, while treatment after biofilm initiation increases biomass.
Sophia Rosencrantz, Jo Sing Julia Tang, Karina Koenig, Sany Chea, Ruben R. Rosencrantz   +4 more
wiley   +1 more source

The Cell Wall of Seagrasses: Fascinating, Peculiar and a Blank Canvas for Future Research

Frontiers in Plant Science, 2020
Seegrasses are a polyphyletic group of angiosperm plants, which evolved from early monocotyledonous land plants and returned to the marine environment around 140 million years ago.
Lukas Pfeifer, Birgit Classen
doaj   +1 more source

Advancements in Mass Spectrometry‐Based Glycomics in Food and Nutritional Science

Mass Spectrometry Reviews, Volume 45, Issue 4, Page 829-850, July/August 2026.
ABSTRACT This review highlights advancements in mass spectrometry (MS)‐based glycomics in food and nutritional science. Carbohydrates, which are vital for human health, exhibit complex structures, making their analysis challenging. MS has become an indispensable tool for elucidating the structures of carbohydrates, including glycans, through soft ...
JaeHui Song, HyunJi Lee, Youngshik Choe, Hyeyoung Lee   +3 more
wiley   +1 more source

The Protective Role of Sulfated Polysaccharides from Green Seaweed Udotea flabellum in Cells Exposed to Oxidative Damage

Marine Drugs, 2018
Seaweed is a rich source of bioactive sulfated polysaccharides. We obtained six sulfated polysaccharide-rich fractions (UF-0.3, UF-0.5, UF-0.6, UF-0.7, UF-1.0, and UF-2.0) from the green seaweed Udotea flabellum (UF) by proteolytic digestion followed by ...
Fernando Bastos Presa, Maxsuell Lucas Mendes Marques, Rony Lucas Silva Viana, Leonardo Thiago Duarte Barreto Nobre, Leandro Silva Costa, Hugo Alexandre Oliveira Rocha   +5 more
doaj   +1 more source

Biochemical and structural characterization of a tail‐spike protein with depolymerase activity identified in a marine podovirus

Acta Crystallographica Section D, Volume 82, Issue 7, Page 785-799, July 2026.
The marine tail‐spike protein Dpo31 degrades the exopolysaccharide of its host and has structural features similar to those of other members of this protein class, despite similarity not being detected at the sequence level.Marine phages are, through the infection of their bacterial hosts, key regulators of microbiome and carbon fluxes in the ocean ...
Serena Sirigu, Thomas Roret, Pierre-Yves Mocaër, Robert Larocque, Diane Jouanneau, Pierre Legrand, Anne-Claire Baudoux, Mirjam Czjzek   +7 more
wiley   +1 more source

Fungal Polysaccharides as Next‐Generation Bioactive: Advances in Structure–Activity Mapping, Mode of Action, and Biotechnological Horizons

Food Frontiers, Volume 7, Issue 3, May 2026.
ABSTRACT Fungal polysaccharides (FPs) represent a diverse class of bioactive macromolecules widely studied for their nutritional, therapeutic, and biotechnological value. This review synthesizes recent advances (2020–2025) in the structural characterization, biological functions, and translational potential of FPs.
Muhammad Aaqil, Feng Zhang, Jingchuan Zheng, Muhammad Kamil, Yuwei Guo, Cunchao Zhao, Yang Tian   +6 more
wiley   +1 more source