Marine ecosystems formed by kelp forests are severely threatened global change and local coastline disturbances in many regions. In order to take appropriate conservation, mitigation, restoration actions, it is crucial identify the most diverse populations which could serve as a “reservoir” of genetic diversity. This requires development specific tools, such microsatellite markers investigate l...

Phylogenies were inferred from nearly complete small subunit (SSU) 18S rDNA sequences of 12 species of Meloidogyne and 4 outgroup taxa (Globodera pallida, Nacobbus abberans, Subanguina radicicola, and Zygotylenchus guevarai). Alignments were generated manually from a secondary structure model, and computationally using ClustalX and Treealign. Trees were constructed using distance, parsimony, an...

The present paper was dealt with the qualitative and quantitative screening of some phytoconstituents of a blue green alga Aphanothece pallida (Kütz.) Rabengh. and in vitro antibacterial activity study of four various organic solvent extracts with different polarities (benzene, chloroform, acetone and methanol) of the same alga, collected from a pond of Diara of Hooghly district, West Bengal. T...

Anacharoides Cameron is revised and six species are recognized: A. nicknacki Buffi ngton & van Noort, sp. n., A. pallida Quinlan, A. paragi Benoit, A. quadrus Quinlan, A. striaticeps Cameron and A. stygius Benoit. A key to species is provided. Anacharoides striaticeps was determined to be a variable species, and consequently a number of names have been proposed for this species. Here we clarify...

Members of the haloarchaeal genera Halosarcina and Halogeometricum (family Halobacteriaceae) are closely related to each other and show 96.6-98 % 16S rRNA gene sequence similarity. This is higher than the accepted threshold value (95 %) to separate two genera, and a taxonomic study using a polyphasic approach of all four members of the two genera was conducted to clarify their relationships. Po...

N-nitroso compounds, such as N-nitrosodiethylamine (NDEA), can be formed by the reaction of secondary amines with nitrosating agents, and are suspected to be involved in tumors in humans. NDEA has been considered a weak carcinogen in genotoxic assays probably due to the inefficient nitrosamine activation system that is used and/or to the efficient repair system. In this work, we evaluated the s...