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Chemical cues from sessile hosts can attract mobile and associated organisms and they are also impotant to maintain associations and overall biodiversity, but the identity and molecular structures of these chemicals have been little explored in the marine environment. Secondary metabolites are recognized as possible chemical mediators in the association between species of Laurencia and Aplysia, but the identity of the compounds has not been established. Here, for the first time, we experimentally verify that the sesquiterpene (+)-elatol, a compound produced by the red seaweed Laurencia dendroidea, is a chemical cue attracting the associated sea hare Aplysia brasiliana. In addition to revealing the nature of the chemical mediation between these two species, we provide evidence of a chemical cue that allows young individuals of A. brasiliana to live in association with L. dendroidea. This study highlights the importance of chemical cues in Laurencia-Aplysia association.
This article was published in the following journal.
Name: PloS one
Red algae of Laurencia continue to provide wide structural diversity and complexity of halogenated C15 acetogenin medium-ring ethers. Here, we described the isolation of three new C15 acetogenins (3-5...
Bird's nest type architectural network of cellulosic nanofibers was extracted, with nearly 34% yield, from green filamentous seaweed Chaetomorpha antennina using mild bleaching agent. Nanorods of cupr...
Seaweed cellulose was isolated from green seaweed Ulva fasciata using a common bleaching agent. Sheet containing porous mesh was prepared from the extracted seaweed crystalline cellulose along with zi...
Seaweed has a long-associated history of use as a supplemented livestock feed, providing nutrients and vitamins essential to maintaining animal health. Some species of seaweed, particularly the fucoid...
A dispersive liquid-liquid microextraction (DLLME) method, combined with HPLC-UV detection, was developed for the extraction and preconcentration of δ-tocopherol from bovine milk. This method was use...
Brown seaweeds are a rich source of phlorotannins, a characteristic class of polyphenols which are unique to seaweeds of this type and can comprise 5 to 15 % of the dried weight. Unlike ot...
The current study will explore the impact of seaweed extract on cognitive function following a high-carbohydrate meal at a number of time-points post-consumption.
The objectives of this trial are to confirm efficacy in human of a brown seaweed powder and explore dose-response relationship by comparing two different doses. The primary endpoint is in...
The overall goal of this study is to investigate the effects of a daily dietary supplement of brown seaweed (2 capsules of InSea2®) on body weight, glycemic control and insulin secretion ...
The aim of the overall project is to investigate the potential of a combination of commercially available nutraceuticals produced by Marigot Ltd (natural seawater derived mineral-rich Aqua...
Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499)
Detection of drugs that have been abused, overused, or misused, including legal and illegal drugs. Urine screening is the usual method of detection.
Radioactive substances added in minute amounts to the reacting elements or compounds in a chemical process and traced through the process by appropriate detection methods, e.g., Geiger counter. Compounds containing tracers are often said to be tagged or labeled. (Hawley's Condensed Chemical Dictionary, 12th ed)
Methodologies used for the isolation, identification, detection, and quantitation of chemical substances.
A genus of RED ALGAE in the family Rhodomelaceae. Some species are a rich source of chlorine-and bromine-containing metabolites which show significant antibacterial activity.