Atlantica

Luminescence of Pyrosoma. All species of the genus Pyrosoma (about 10 species) are bioluminescent. Pyrosoma is one of the few organisms reported to luminesce in response to light (Bowlby et al., 1990). The luminescence emission spectrum of Pyrosoma atlantica is bimodal according to Kampa and Boden (1957), with the primary peak near 482 nm, and the secondary near 525 nm. Swift et al. (1977) reported the emission maxima of two Pyrosoma species at 485 and 493 nm, respectively, and Bowlby et al. (1990) found an emission peak at 475 nm with P. atlantica. A corrected bioluminescence spectrum of P. atlantica (A.max 485 nm) reported by Herring (1983) is shown in Fig. 10.5.2. 

The pH-dependence of metal sorption by bacteria can vary significantly with metal concentration. For example, the sorption of Pb by Pseudomonas atlantica at the highest metal concentration (5x10-6 M) was almost independent of pH, whereas sorption markedly increased with pH when the metal concentration was low (Ledin 2000). On the other hand, the accumulation of Cd by Pseudomonas cepacia showed an increased pH dependence with increasing metal concentration (Savvaidis et al. 1992). The pH dependence may also be influenced by ionic strength. 

Geesy, G. G., Bremer, P. J., Smith, J. J., Muegge, M. and Jang, L. K. (1992). Two-phase model for describing the interactions between copper ions and exopolymers from Alteromonas atlantica, Can. J. Microbiol., 38, 785-793. 

The stereochemistry of j8-himachalene epoxide (151), onq of two diastereomeric epoxides [(151), (152)] previously isolated from Cedrus atlantica (Vol. 7, p. 60),... 

Molecular biology Pseudomonas agarase/ Sigma 2000 agarose digesting enzyme protein/ used in the isolation of intact, high MW, DNA marine Pseudomonas atlantica, Bact. 

Di-Ar- acety 1 p s c u d aminic acid was also found in OPS of Pseudoalteromonas atlantica T929 and CPS of Sinorhizobium sp. NGR 234,13 and 7-Ar-accLyC5-/V-(3-hydroxybutanoyl)pscudaminic acid in CPS of Sinorhizobium meliloti AK631.13 The data reported on the monosaccharides in the Sinorhizobium CPS are limited, and the full structure of none of the three polysaccharides has been determined. 

Uhlinger, D.J., and White, D.C. (1983) Relationship between physiological status and formation of extracellular polysaccharideglycocalyx in Pseudomonas atlantica. Appl. Environ. Microbiol. 45, 64—70. 

Many essential oils come under the name cedarwood. These commonly include Atlas cedarwood (Cedrus atlantica) and Virginian cedarwood (Junipe-rus virginiana). They share some similar properties although some authorities feel the Atlas to be superior and safer. 

Box 7.22 Typical Data Sheet aimed at healthcare professionals Atlas Cedarwood (Cedrus atlantica)... 

CEDRUS ATLANTICA LIG. [ATLAS CEDARWOOD, SATINWOOD] A BIETACEAE... 

As part of a general investigation of terpenoid synthesis from isoprene units it has been shown that condensation of limonene (46) with senecioyl chloride in the presence of stannic chloride, followed by dehydrochlorination, provides a new simple synthetic route to a mixture of cis- (47) and frans-atlantones (48).23a Using acetyl chloride instead of senecioyl chloride in the synthetic sequence provides a C12 trisnor-sesquiterpenoid (49) which co-occurs with trans-atlantone in the essential oil of Cedrus atlantica.23b... 

W. Yaphe, The use of agarase from Pseudomonas atlantica in the identification of agar in marine algae (Rhodophyceae), Can. J. Microbiol., 3 (1957) 987-993. 

W. Yaphe, The purification and properties of an agarase from a marine bacterium, Pseudomonas atlantica, Proc. Int. Seaweed Symp., 5 (1966) 333-335. 

D. Groleau and W. Yaphe, Enzymatic hydrolysis of agar Purification and characterization of /(-neoagarotetraose hydrolase from Pseudomonas atlantica, Can. J. Microbiol., 23 (1977) 672—679. 

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