Optics

Physics

Biophysics

Photosystem I

Organic chemistry

Photosynthesis

Chemistry

Photosynthetic reaction centre

Light-harvesting complex

Photosystem

Antenna (radio)

Chlorophyll

Chlorophyll a

Diatom

Fucoxanthin

Light energy

Computer science

Algae

Botany

Pigment

Photochemistry

Telecommunications

Photosystem II

Biology

Science

A light-harvesting array in diatoms Photosynthetic organisms use huge arrays of pigments to draw light energy into the core of photosystem II. The arrangement of these pigments influences how much energy reaches the reaction center. Pi et al. determined the structure of photosystem II from a diatom in complex with an antenna of fucoxanthin–chlorophyll a/c binding proteins (FCPs) (see the Perspective by Büchel). The specialized pigments in this complex allow microalgae to harvest light within a wide range of the visible spectrum. The FCPs are arranged in a pattern analogous to light-harvesting complexes in plants. Science , this issue p. eaax4406 ; see also p. 447

The pigment-protein network of a diatom photosystem II–light-harvesting antenna supercomplex