Denitrification is a distinct means of energy conservation, making use of N oxides as
terminal electron acceptors for cellular bioenergetics under anaerobic, microaerophilic, and …

In the last 30 to 40 years, the study of photosynthetic membranes from the anoxygenic and
oxygenic photosynthetic procaryotes has provided a wealth of information pertaining to their …

Drug platforms that enable the directed delivery of therapeutics to sites of diseases to
maximize efficacy and limit off-target effects are needed. Here, we report the development of …

The ability of Acinetobacter baumannii to adhere to and persist on surfaces as biofilms could
be central to its pathogenicity. The production of pili and a biofilm-associated protein and the …

Chlorophyll is bound to proteins of the photosynthetic membranes. It harvests sunlight and
carries out the first reactions in the conversion of light energy to chemical energy, which is …

The T-DNA regions of the root-inducing (Ri) plasmid pRiA4b of Agrobacterium rhizogenes
were characterized. Two regions, designated TL-DNA and TR-DNA, were found to be …

THE existence of sympatric speciation—that populations diverge into species in the absence
of physical or ecological barriers—is controversial1–6. The East African Great Lakes …

Plasmids Related to the Broad Host Range Vector, pRK290, Useful for Gene Cloning and for
Monitoring Gene Expression Page 1 PLASMID 13, 149-153 (1985) Plasmids Related to the …

Light is a ubiquitous environmental signal that many organisms sense and respond to by
modulating their physiological responses accordingly. While this is an expected response …

The polar pili of Pseudomonas aeruginosa are composed of monomers of the pilin structural
subunits. The biogenesis of pili involves the synthesis of pilin precursor, cleavage of a six …