Results 261 to 270 of about 93,530 (304)

Soft corals exert no direct effects on coral reef fish assemblages

Oecologia, 2001
Correlations between abundance of organisms and their habitat have often been used as a measure of the importance of particular habitat features. However, experimental manipulation of the habitat provides a more unequivocal estimate of its importance. In this study we quantified how fish communities on small patch reefs covaried with changes in benthic
Syms, Craig, Jones, Geoffrey P.
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Marine Metabolites: The Sterols of Soft Coral

Chemical Reviews, 2009
Sterols constitute a major group of secondary metabolites of soft corals. Several of these compounds have the 'usual' 3 beta-hydroxy, delta sup(5) (or delta sup(0)) cholestane skeleton, a large number of these metabolites are polar sterols with multiple oxygenations in rings as well as side chains.
Sarma, N.S., Krishna, M.S., Pasha, Sk.G., Rao, T.S.P., Venkateswarlu, Y., Parameswaran, P.S.   +5 more
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Deoxosarcophine from a soft coral, sp.

Tetrahedron Letters, 1980
Abstract A sample of deoxosarcophine ( 2 ) was converted into sarcophine ( 1 ) by autoxidation. Two reactions are described that will enable the enantiomers of deoxosarcophine to be interrelated.
James M. Frincke, Douglas E. McIntyre, D.John Faulkner   +2 more
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Steroid metabolism in Antarctic soft corals

Polar Biology, 1997
Whole body tissue preparations of the Antarctic soft corals Alcyonium paessleri and Clavularia frankliniana were incubated in vitro with the radiolabelled precursors 3H-progesterone and 3H-androstenedione to determine steroidogenic capacity. Steroidal metabolites were identified using TLC, derivitization, and recrystallization techniques. The Antarctic
M. Slattery, G. A. Hines, S. A. Watts
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Studies of australian soft corals—XXXV

Tetrahedron, 1985
Abstract The in vivo incorporation of mevalonolactone specifically into the terpene portion of a sesquiterpene hydroquinone is reported for the soft coral Sinularia capillosa Eudesma -4 , 7(11)- diene -8β- ol ( 20 ) and the corresponding 8-keto derivative ( 21 ) have been isolated from the soft coral Nephthea species for the first time The ...
John C. Coll, Bruce F. Bowden, Dianne M. Tapiolas, Richard H. Willis, Peter Djura, Margaret Streamer, Lindsay Trott   +6 more
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Algal overgrowth of alcyonacean soft corals

Marine Biology, 1987
Colonies of the soft coral Lobophytum pauciflorum (Ehrenberg, 1834) (Coelenterata: Octocorallia: Alcyonacea: Alcyoniidae), some of which were heavily overgrown by the algae Ceranium flaccidum (Kuetzing) Ardissone and Enteromorpha sp., and other minor epizoites, were collected at Taylor Reef (17°50′S; 146°35′E) in the Great Barrier Reef.
J. C. Coll, I. R. Price, G. M. K�nig, B. F. Bowden   +3 more
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Capnellenes from the Soft Coral Dendronephthya rubeola

Chemistry & Biodiversity, 2008
AbstractFour new acetoxycapnellenes 1–4, the first epoxyprecapnellene 5, along with the known dihydroxycapnellene 6 and monoacetoxycapnellene 7, have been isolated from the soft coral Dendronephthya rubeola. The structures were determined primarily by NMR spectroscopy. The compounds 6 and 7 showed a good antiproliferative activity against the cell line
Daniela, Grote, Frank, Hänel, Hans-Martin, Dahse, Karlheinz, Seifert   +3 more
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Studies of Australian soft corals. XXXI. Novel furanosesquiterpenes from several sinularian soft corals (Coelenterata, Octocorallia, Alcyonacea)

Australian Journal of Chemistry, 1983
Fifteen structurally related furanosesquiterpenes have been isolated from two different species of sinularian soft corals. The structures were assigned on the basis of 1H and 13C n.m.r. spectroscopy.Complete 13C n.m.r. assignments are reported for all compounds.
BF Bowden, JC Coll, Silva ED de, Costa MSL de   +3 more
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Lipophilic Defenses From Alcyonium Soft Corals of Antarctica

Journal of Chemical Ecology, 2013
Alcyonacean soft corals lack physical or skeletal defenses and their nematocyst system is weak, leading to the conclusion that soft corals mainly rely on chemistry for protection from predators and microbes. Defensive chemicals of primary and secondary metabolic origin are exuded in the mucus surface layer, explaining the general lack of heavy fouling ...
Laura NúñezPons, Marianna Carbone, Jennifer Vázquez, Margherita Gavagnin, Conxita Avila   +4 more
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Microbes in Gorgonian and Soft Corals

2019
Corals provide a structurally and environmentally complex array of habitats, supporting a broad microbial diversity that influences both host physiology and ultimately ecosystem processes. Many studies have indicated that microbial communities occupy a range of niches on corals, from within the surface mucus layer to on and within the coral tissue ...
Xiao-Yong Zhang, Shu-Hua Qi
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