Colourless Chlorophyll

How the Colourless ‘Nonfluorescent’ Chlorophyll Catabolites Rust

For a long time, the appearance of the fall colours has been associated with the enigmatic chlorophyll breakdown in higher plants. However, the extensive earlier search for coloured chlorophyll breakdown products has remained unsuccessful. When chlorophyll catabolites from higher plants were first tentatively identified, they were indicated to be colourless. These colourless compounds readily d...

Colourless Mesons in a Polychromatic World

The limit of an infinite number of quark colours turns out to be a very useful starting point to understand many features of the strong interaction. The SU(NC) gauge theory simplifies considerably at NC →∞, while keeping the most essential properties of QCD. Choosing the coupling constant gs to be of O ( 1/ √ NC ) , i.e., taking the large–NC limit with αsNC fixed, there exists a systematic expa...

NIR emitting ytterbium chelates for colourless luminescent solar concentrators.

A new oxyiminopyrazole-based ytterbium chelate enables NIR emission upon UV excitation in colorless single layer luminescent solar concentrators for building integrated photovoltaics.

The Vitreoscillaceae; a family of colourless, gliding, filamentous organisms.

A new family, the Vitreoscillaceae, is proposed for a group of microorganisms which are characterized by their colourless, gliding trichomes. The family has certain affinities with myxobacteria and still more with colourless myxophyceae, especially with the Beggiatoaceae. Two genera, Vitreoscilla and Microscilla and seven species are described, three species tentatively referred to Vitreoscilla...

The metabolism of acetate in the colourless alga, Prototheca zopfii.