Malaria parasites have simplified and adapted their mitochondrial metabolism to lack fatty acid synthesis but retain an unusual acyl carrier protein required for stability of the core iron-sulfur cluster biogenesis complex.
A previously uncharacterized type of bivalent chromatin plays an important role controlling the timely induction of genes involved in making a potent defense metabolite upon a pathogen signal in Arabidopsis.
Irreversible differentiation into somatic cells is evolutionarily optimal if changing cell phenotype is costly, a few somatic cells already improve the organism's performance, and the organism is large enough.
Bleaching-resistant corals are widespread across Palau and concentrated in warmer regions, but this trait is associated with decreased growth which could lead to reduced fitness if it is the only priority of conservation efforts.
The necessity of studying extremophile organisms is exemplified by the structure of photosystem I from a high-light tolerant cyanobacteria, demonstrating the relationship between the structure and function in photosystem I.
A potentially useful cyanobacterial sulfated exopolysaccharide and its biosynthesis and regulation genes, which contribute to the laboratorial bloom formation, are elucidated for the first time among prokaryotes.