Consequently the name Biblarium chilense is a nomen nudum. Even so, some years later De Toni, observing neither illustration nor specimen, transferred it to Tetracyclus as Tetracyclus (chilensis) chilense (Ehrenb.) De Toni (De Toni 1892: 749). Regardless of these nomenclatural details, that a species of Tetracyclus was found in Chile offered data of potential biogeographic interest (Williams 20...

In situ trampling occurred under experimental conditions to quantify the differences in the responses to anthropogenic trampling in four dominant species of Hawaiian corals, Porites compressa, Porites lobata, Montipora capitata, and Pocillopora meandrina. Trampling was simulated daily for a period of nine days at which time further breakage was minimal. Forty treatment colonies produced 559 fra...

The current study examined the biochemical composition of four seaweeds (Ulva fasciata, Ulva compressa, Corallina officinalis, and elongate) which were collected from Eastern Harbor located at Alexandria Mediterranean coast, Egypt. Total chlorophyll content was maximum in compressa (2.7 mg g–1 FW) minimum value observed elongate (0.90 FW). In comparison, carotenoids registered officinalis (1.04...

Algae are classified as unicellular microalgae and macroalgae, which are macroscopic plants of marine benthoses. Macroalgae, also known as seaweed, are distinguished according to the nature of their pigments: brown seaweed (phaeophyta), red seaweed (rhodophyta) and green seaweed (chlorophyta) [1]. Seaweeds are considered as a source of bioactive compounds as they are able to produce a great var...

Ulva and Enteromorpha are two of the most common, ubiquitous, and environmentally important genera of green seaweeds. They are widely regarded as easily distinguishable because of their dramatically different morphologies: Ulva species are flat, lettucelike blades two cell layers thick, and Enteromorpha species form hollow liquid- or gas-filled tubes one cell thick, which may also be highly bra...

In this paper we report on the effect of surface wettability on surface selection and adhesion properties of settled (adhered) spores of the biofouling marine alga Enteromorpha and cells of the diatom Amphora, through the use of patterned self-assembled monolayers (SAMs). The SAMs were formed from alkanethiols terminated with methyl (CH(3)) or hydroxyl (OH) groups, or mixtures of the two, creat...

Macroalgal blooms occur worldwide and have the potential to cause severe ecological and economic damage. Narragansett Bay, RI is a eutrophic system that experiences summer macroalgal blooms composed mostly of Ulva compressa and Ulva rigida, which have biphasic life cycles with separate haploid and diploid phases. In this study, we used flow cytometry to assess ploidy levels of U. compressa and ...

BACKGROUND Hemarthria compressa is a stoloniferous perennial tropical forage grass with a wide geographic distribution; however, environmental stress has a great influence on its growth. The DREB transcription factor family genes contains candidate genes for improving plant stress tolerance. RESULTS From cold-treated H. compressa plants, a putative DREB2 gene (HcDREB2) was cloned using the RA...

The comparative effect of the uptake of fresh and degraded detritus of halophytic plants, harvested from salt marches of the Mont Saint-Michel Bay (France), on the growth of a juvenile population of the annelid polychaete N. diversicolor (L.) was studied under experimental conditions in summer 1993. Fresh and degraded detritus of Spartina anglica, Halimione portulacoides and Salicornia europeae...