Lytechinus variegatus

Specimens from southern Brazil are chemically defended against the sea urchin Lytechinus variegatus (Lima et al., submitted)... 

Crude extract and a diterpenoid inhibit fishes and the sea urchin Lytechinus variegatus (Barbosa et al. 2004)... 

Sharp, D. T. and Gray, I. E., Studies on the factors affecting the local distribution of two sea urchins, Arbacia punctulata and Lytechinus variegatus, Ecology, 43, 309, 1962. 

As mentioned above Lytechinus variegatus skeletons contain <0.1 weight % organic matter (78), and the broad 1.4- and 1.9-pm bands in its spectrum (Figure 4a) indicate that bound as well as liquid 1 0 is present. 

Lytechinus Variegatus Common Name(s) Green Pincushion Urchin... 

J.L.J. Eastwood (1972). The Development and Photic Behavior of Lytechinus Variegatus Echinoplutei Larvae (Ph.D. thesis). Lehigh University, Bethlehem, PA, USA. 

Coexposure of sea urchin Lytechinus variegatus eggs or embryos to near-UV and different nitroaromatic chemicals (TNT 2,3-, 2,4-, 2,6-, and 3,4-DNT 2,3-, 2,4-, 2,6-, or 3,4-DAT) enhanced their adverse effects, relative to exposure to the same compounds in the dark [65], Coexposure of Daphnia magna to these chemicals and near-UV, after an initial 12-h exposure to the chemicals in the dark, caused... 

Hinkley RE, Wright BD. 1986. Effects of the volatile anesthetic halothane on fertilization and early development in the sea urchin Lytechinus variegatus. evidence that abnormal development is due to polyspermy. Teratology 34 291-301. 

Glycoprotein. Isol. from the sea urchin Lytechinus variegatus. Shows antitumour activity. Fairly sol. H2O poorly sol. hexane. 

The Brazilian red alga Laurencia obtusa produces elatol (23) as its major metabolite, [59] a compound that showed inhibition of feeding of the crab Pachygrapsus transversiis and the sea urchin Lytechinus variegatus at natural concentrations [48, 59,60]. 

McConnell, O.J., P.A. Hughes, N.M. Targett J. Daley. 1982. Effects of secondary metabolites on feeding by the sea urchin, Lytechinus variegatus. J. Chem. Ecol. 8 1437-1453. 

Cinelli, L.P., Vilela-Silva, A.-C.E.S., and Mourao, P.A.S. (2009) Seminal fluid from sea urchin Lytechinus variegatus) contains complex sulfated polysaccharides linked to protein. Comp. Biochem. Physiol., 154B,108-112. 

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