| biochemical composition, metabolism, and amino acid transport in planula-larvae of the soft coral heteroxenia fuscescens. | we determined the monthly percentage of biochemical components in planulae of the soft coral heteroxenia fuscescens, for a 3-year period, and evaluated the findings in relation to seasonal fluctuations in water temperature. we determined the biochemical profile and metabolic rate of aging planulae and examined the possible absorption of dissolved organic material (dom) from the water by the planulae. our study is the first to present a long-term biochemical profile of planulae. they contained an ... | 2000 | 11074452 |
| some toxicological characteristics of three venomous soft corals from the red sea. | three common red sea soft corals (cnidaria: anthozoa), nephthea sp, dendronephthya sp and heteroxenia fuscescens sting humans. nematocyst venoms of each animal are lethal to mice and hemolytic to human erythrocytes. however, these hemolysins are partially inhibited by known anti-hemolytic agents. venoms and their gel chromatography-separated fractions have different dermonecrosis and vasopermeability potency in mouse skin. the venom of heteroxenia fuscescens (hf) was more lethal (ld50: 0.7 mg/kg ... | 2002 | 12039682 |
| comparative proteomics of symbiotic and aposymbiotic juvenile soft corals. | the symbiotic association between corals and photosynthetic unicellular algae is of great importance in coral reef ecosystems. the study of symbiotic relationships is multidisciplinary and involves research in phylogeny, physiology, biochemistry, and ecology. an intriguing phase in each symbiotic relationship is its initiation, in which the partners interact for the first time. the examination of this phase in coral-algae symbiosis from a molecular point of view is still at an early stage. in th ... | 2006 | 16059755 |
| gene diversity and mode of reproduction in the brooded larvae of the coral heteroxenia fuscescens. | the soft coral heteroxenia fuscescens is a common shallow-reef brooding species in the red sea. by means of amplified fragment length polymorphism markers, we studied modes of reproduction of planulae (sexual vs. vegetative) and levels of gene diversity of a population residing in the northern gulf of eilat, red sea. eighty-nine larvae were collected from 9 mother colonies at 3 locations over a distance of 5 km. amplifications revealed 221 putative loci, of which 81.4% were polymorphic; gene div ... | 2006 | 16957047 |
| does elevated pco2 affect reef octocorals? | increasing anthropogenic pco2 alters seawater chemistry, with potentially severe consequences for coral reef growth and health. octocorals are the second most important faunistic component in many reefs, often occupying 50% or more of the available substrate. three species of octocorals from two families were studied in eilat (gulf of aqaba), comprising the zooxanthellate ovabunda macrospiculata and heteroxenia fuscescens (family xeniidae), and sarcophyton sp. (family alcyoniidae). they were mai ... | 2012 | 23533159 |