ABSTRACT: This study aimed to determining the manner in which salinity influenced growth of macroalgae Gracilaria birdiae, with objective identifying its tolerance limits this abiotic variable. The specimens were submitted nutrient-enriched water varying salinities (0, 10, 20, 30, 40, 50, and 60 ppt) for a 30-day period. Initially, under extreme conditions (0 G. birdiae suffered negative impact...

Oliveira, V. P.; Freire, F. A. M. & Soriano, E. M. 2012. Influence of depth on the growth of the seaweed Gracilaria birdiae (Rhodophyta) in a shrimp pond. Braz. J. Aquat. Sci. Technol. 16(X): 33-39. eISSN 1983-9057. This study evaluates the influence of depth and environmental parameters on the development of Gracilaria birdiae Plastino & Oliveira (Gracilariaceae) in an organic shrimp pond. The...

BACKGROUND AND OBJECTIVES The Gracilaria (G.) sp are widely used in the traditional medicine in Malaysia. The methanol extract of Gracilaria changii B.M. Xia & I.A. Abbott (Gracilariaciae) was evaluated for antiyeast activity against Candida albicans (Berkhout). MATERIALS AND METHODS The antiyeast activities were studied by using disc diffusion method and broth dilution method. The effect of ...

This study reports the morphological, anatomical and agar content difference among various species of Gracilaria. The cortex was found 1 2 layered in G. edulis and G. eucheumatoides whereas 5 6 layered in G. foliifera and G. crassa. The medulla was 6 8 layered in G. edulis, 10 11 layered in G. foliifera, 14 15 layered in G. eucheumatoides and 8 10 layered in G. crassa. Similarly, distinct varia...

Seasonal biomass variation and agar yield of G. salicornia (C. Ag.) Dawson from Oyster Bay, Dar es Salaam, and Chwaka Bay, Zanzibar, were determined, and some properties of the agar examined. Mean biomass and canopy cover values ranged from 21–60 g/m2 and 7– 20 %, respectively. The highest mean biomass and cover values were obtained during the SE monsoon. Agar yield varied from 13.7 to 30.2 % (...

BACKGROUND Gracilaria changii (Xia et Abbott) Abbott, Zhang et Xia, a red algae commonly found in the coastal areas of Malaysia is traditionally used for foods and for the treatment of various ailments including inflammation and gastric ailments. The aim of the study was to investigate anti-inflammatory, gastroprotective and anti-ulcerogenic activities of a mass spectrometry standardized methan...

Submit Manuscript | http://medcraveonline.com Abbreviations: GLPs: Gracilaria Lemaneiformis Polysaccharides; FTIR: Fourier Transform Infrared Spectroscopy; GC: Gas Chromatography; HPGPC: High Performance Gel Permeation Chromatography; NK: Natural Killer; IL-2: Interleukin-2; IFN-γ: Interferon-γ; TNF-α: Tumor Necrosis Factor-α; BRM: Biological Response Modifier; ConA: Concanavalin A; LPS: Lipo P...

Allelopathy, one type of direct plant competition, can be a potent mechanism through which plant communities are structured. The aim of this study was to determine whether allelopathic interactions occur between the opportunistic green tide-forming species Ulva prolifera and the native macroalga Gracilaria lichvoides, both of which were collected from the coastline of East China sea. In laborat...

The history of a domesticated marine macroalga is studied using archaeological, phylogeographic and population genetic tools. Phylogeographic and population genetic analyses demonstrated that the cultivated red alga Gracilaria chilensis colonised the Chilean coast from New Zealand. Combining archaeological observations with phylogeographic data provided evidence that exchanges between New Zeala...