Establishment and Maintenance of Gnotobiotic American Cockroaches (<em>Periplaneta americana</em>)

American Self-Identification: A Strategy of Maintenance

Toxicity of fatty acid salts to German and American cockroaches.

The toxicity of fatty acid salts to German, Blattella germanica (L.), and American cockroaches, Periplaneta americana (L.), was evaluated. Potassium and sodium laurate caused up to 95% mortality of German cockroaches and 100% mortality of American cockroaches. Even-numbered potassium fatty acid salts, C8-C18 were assessed for toxicity at 0.125, 0.25, 0.5, 1, and 2% concentrations by a 30-s imme...

Basic principles of polarity establishment and maintenance

Institute of Developmental Biology and Cancer Research, CNRS UMR6543, Université de Nice Sophia-Antipolis, Parc Valrose, 06108 Nice Cedex 2, France Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA Corresponding author. Tel: +33 492 07 6425; Fax: +33 492 07 6466; E-mail: [email protected] Corresponding author. Tel: +1 410 516 6026; Fax: ...

Establishment and maintenance of a heterochromatin domain.

The higher-order assembly of chromatin imposes structural organization on the genetic information of eukaryotes and is thought to be largely determined by posttranslational modification of histone tails. Here, we study a 20-kilobase silent domain at the mating-type region of fission yeast as a model for heterochromatin formation. We find that, although histone H3 methylated at lysine 9 (H3 Lys9...

american self-identification: a strategy of maintenance