The fixation and infiltration of larger brown algae (Phaeophyta) for electron microscopy

The Halogenated Metabolism of Brown Algae (Phaeophyta), Its Biological Importance and Its Environmental Significance

Brown algae represent a major component of littoral and sublittoral zones in temperate and subtropical ecosystems. An essential adaptive feature of this independent eukaryotic lineage is the ability to couple oxidative reactions resulting from exposure to sunlight and air with the halogenations of various substrates, thereby addressing various biotic and abiotic stresses i.e., defense against p...

Detection of rotavirus by Latex Agglutination Test (Rotales); Comparison with Electron Microscopy and Complement Fixation Test

Estimates of nuclear DNA content in 98 species of brown algae (Phaeophyta)

BACKGROUND AND AIMS Brown algae are critical components of marine ecosystems around the world. However, the genome of only one species of the class has so far been sequenced. This contrasts with numerous sequences available for model organisms such as higher plants, flies or worms. The present communication expands our coverage of DNA content information to 98 species of brown algae with a view...

A Study of Fixation for Electron Microscopy

Osmium tetroxide fixation of tissue blocks, as usually effected, is preceded by an acidification of the tissue. This acidification is probably responsible for morphological alterations which are notably disturbing in electron microscopy. The acidification and the resulting morphological alterations cannot be prevented by homogenizing the tissue directly in OsO(4) solutions or by adding enzyme i...

Sodium Permanganate Fixation for Electron Microscopy

Heightened interest in the cytology of certain free-living flatworms has been evident in the literature throughout the past year (5, 6, 10-12). The variety of problems dealt with by various investigators reflects the abundance of curious cellular specialization found in this group of animals. Moreover, the suitability of the Turbellarians for the study of regenerative processes is well recogniz...