About 1000 salt-responsive ESTs were identified from an extreme halophyte Salicornia brachiata. Among these, a novel salt-inducible gene SbSLSP (Salicornia brachiata SNARE-like superfamily protein), showed up-regulation upon salinity and dehydration stress. The presence of cis-regulatory motifs related to abiotic stress in the putative promoter region supports our finding that SbSLSP gene is in...

Gracilaria lemaneiformis (G. lemaneiformis) is rich in polysaccharides that have many functional activities. In this study, the thermostable α-amylase-assisted extraction and antioxidant activity of water-soluble polysaccharides from G. lemaneiformis were investigated. The extraction conditions were optimized as follows: time, 40 min; temperature, 95 °C; pH, 5 and enzyme amount, 6000 U/g, under...

The nucleotide sequences of 5S rRNA from two red algae, Gracilaria compressa and Porphyra tenera have been determined. The two 5S rRNAs are fairly dissimilar to each other in their sequences (65% identity), although they are both composed of 121 nucleotides. Their secondary structures are generally of the eukaryotic with a prokaryotic characteristic. Judged from the 5S rRNA sequence data, the r...

James C. Russell,∗† Holly P. Jones,‡ Doug P. Armstrong,§ Franck Courchamp,∗∗ Peter J. Kappes,†† Philip J. Seddon,‡‡ Steffen Oppel,§§ Mark J. Rauzon,∗∗∗ Phil E. Cowan,††† Gérard Rocamora,† Piero Genovesi,‡‡‡ Elsa Bonnaud,∗∗ Bradford S. Keitt,§§§ Nick D. Holmes,§§§ and Bernie R. Tershy∗∗∗∗ ∗School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand, emai...

This study aims to determine the chemical and physical composition antibacterial activity of glasswort. Soxhlet extraction S. europaea was performed using Hexane analyzed by Gas chromatographymass spectrometry. Alpha-tocopherol content analysed Liquid chromatography with tandem mass The elemental analysis investigated inductively coupled plasma crystallographic texture powder samples were deter...

Wild type Gracilaria tikvahiae, a macrophytic red alga, and fourteen genetically characterized pigment mutants were analyzed for their biliprotein and chlorophyll contents. The same three biliproteins, phycoerythrin, phycocyanin, and allophycocyanin, which are found in the wild type are found in all the Mendelian and non-Mendelian mutants examined. Some mutants overproduce R-phycoerythrin while...

In this work, in vitro antioxidant activity of two Brazilian red seaweeds, Gracilaria birdiae and Gracilaria cornea, was characterized. The total phenolic content, the radical-scavenging activity and the antioxidant activity were determined in two solvent extracts of the algae. Liquid chromatography-mass spectrometry (LC-MS/MS) allowed identification of important antioxidant compounds. The etha...

Gracilariaceae are mostly pantropical red algae and include ~230 species in seven genera. Infrafamilial classification of the group has long been based on reproductive characters, but previous phylogenies have shown that traditionally circumscribed groups are not monophyletic. We performed phylogenetic analyses using two plastid (universal plastid amplicon and rbcL) and one mitochondrial (cox1)...

Nutritional fact study has prime importance to make the species edible and commercially viable to the food consumers. The proximate chemical composition and amino acid profile of Gelidium pusillum were studied to understand the nutritional status. The red seaweed Gelidium pusillum was rich in dietary fibre (24.74 ± 1.05%), lipid (2.16 ± 0.61%) and ash content (21.15 ± 0.74%). The mean protein c...