Aggregation in Azospirillum brasilense: effects of chemical and physical factors and involvement of extracellular components

Article Abstract:

The extracellular factors as well as the chemical and physical issues involved in the aggregation of Azospirillum brasilense cells were examined using a medium for consistent induction of aggregation. Results showed the occurrence of visible flocculation following the use of fructose and ammonium chloride in growing the A. brasilense strain, The strongest aggregation were observed from a mutant that lacks both lateral and polar flagella.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Fitness components associated with laying date in the cliff swallow

Article Abstract:

Birds show falling prospects of reproductive success as the breeding season advances, but the reason for this remains unresolved in studies of avian life histories. Fitness components linked to breeding time were examined as part of a larger study of clutch size in the colonial Cliff Swallow. The study emphasizes the significance of annual variation in fitness components linked to laying date.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Involvement of MicroRNA in Au-rich element-mediated m-RNA instability

Article Abstract:

Au-rich elements located within the 3' untranslated region of variety of short-lived mRNAs such as cytokines and protooncogenes are the most conspicuous among various cis-acting destabilizing elements identified so far. The microRNA targeting of Au-rich elements appears to be essential step in Au-rich element-mediated mRNA degradation.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code: