179,177 research outputs found
Acropora stoddarti Pillai & Scheer 1976
No full textAcropora stoddarti Pillai & Scheer, 1976 Acropora stoddarti Pillai & Scheer, 1976: 27, pls 5–6. Type locality. Addu Atoll, Maldives (holotype HSMD). MTQ Holdings. Maldives: topotypes G46421–23 Addu Atoll, Maldives. Species group: divaricata. Description. Colony outline: determinate, predominantly arborescent table. Branches: tertiary branching order absent; length: 25–50 mm; diameter: 10.0–19.9 mm, 50/50 axial/ radial; tapering; radial crowding: some touching; axial/radial ratio:>1:10. Axial corallites: three synapticular rings; not porous; outer diameter 1.9–2.5 mm; inner diameter 0.7–1.3 mm; primary septa to ½ R. Radial corallites: medium; three synapticular rings; one size or graded; inner wall developed; shape: nariform; round openings; primary septa to 1/3 R. Coenosteum: same on and between radials: reticulate to reticulocostate, spinule shape: single point or forked. Taxonomic note. These specimens at the type locality (Gan I. lagoon, Addu Atoll, Maldives). We have taken A. stoddarti out of the synonymy with A. divaricata (as given in Wallace 1999): however its precise identity remains elusive. While all specimens share similarities with A. divaricata, there is a high degree of variability, amongst the three specimens at hand, in the width of branches, which range from broad and strap-like to slender and tapering. The colony illustrated bears the greatest similarity to syntype X2:31-24 of Pillai and Scheer (1976). Further literature: Veron (2000) (some of the illustrated specimens may not be A. stoddarti).Published as part of Wallace, Carden C., Done, Barbara J. & Muir, Paul R., 2012, Revision and catalogue of worldwide staghorn corals Acropora and Isopora (Scleractinia: Acroporidae) in the Museum of Tropical Queensland, pp. 1-258 in Memoirs of the Queensland Museu Nature 57 on page 198, DOI: 10.5281/zenodo.216351
Coherent anti-Stokes Raman spectroscopy of phycobilisomes, phycocyanin and allophycocyanin from Mastigocladus laminosus
No full textAcropora eibli Pillai & Scheer 1976
No full textAcropora eibli Pillai & Scheer, 1976 Acropora eibli Pillai & Scheer, 1976: 33, pl. 10. Type locality. Rasdu Atoll, Maldives (holotype HSMD). MTQ Holdings. Maldives: G60011–14 topotypes from Rasdoo Atoll, Maldives. Species group: not determined. Description. Colony outline: determinate, predominantly plate. Branches: tertiary branching order absent; length: 25–50 mm; diameter: 5.0–9.9 mm, 50/50 axial/radial, tapering; radial crowding: not touching; axial/radial ratio:>1:10. Axial corallites: three synapticular rings; not porous; outer diameter 1.4–1.6 mm; inner diameter 0.6–0.7 mm; primary septa to ½ R. Radial corallites: medium; three synapticular rings; one size or graded; inner wall developed; shape: nariform; openings: round to oval; primary septa to ¾ R. Coenosteum: same on and between radials: reticulate, spinule shape: forked. Taxonomic note. This species is taken out of the synonymy of A. tenella, following examination of topotypic specimens.Published as part of Wallace, Carden C., Done, Barbara J. & Muir, Paul R., 2012, Revision and catalogue of worldwide staghorn corals Acropora and Isopora (Scleractinia: Acroporidae) in the Museum of Tropical Queensland, pp. 1-258 in Memoirs of the Queensland Museu Nature 57 on page 62, DOI: 10.5281/zenodo.216351
Energy transfer in 'native' and chemically modified C-phyocyanin trimers and the constituent subunits
No full textEnergy transfer calculations for two C-phycocyanins based on refined x-ray crystal structure coordinates of chromophores
No full textPeripheral Metal Complexes: Chlorophyll “Isomers” with Magnesium Bound to the Ring E ß-Keto Ester System
No full textPeripheral magnesium complexes of methyl pheophorbides a and b, bacteriomethyl pheophorbide a, bacteriopheophytin
a, and protopheophytin a have been prepared and characterized by UV-vis, IR, ‘H NMR, and luminescence spectroscopy.
In these compounds, Mg is bound to the peripheral p-keto ester system present in most chlorophylls rather than to the
central tetrapyrrole cavity as in the chlorophyll proper. The ligand exchange reactions at Mg have been characterized, and the
equilibrium between the peripheral complexes and their free ligands has been studied over the concentration range lo-’-
M. AGO for complex formation has been determined by ’H NMR spectroscopy
Picosecond time-resolved energy transfer kinetics within C-phycocyanin and allophycocyanin aggregates
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