Plants and algae have a love/hate relationship with light. As oxygenic photoautotrophic
organisms, they require light for life; however, too much light can lead to increased …

Photosynthetic organs such as green leaves are capable of operating a light-absorbing
pigment system over a wide range of changes in photon flux density (PFD) including high …

Figures showing species and properties relevant to non-photochemical quenching
studies.(a) Filamentous planktonic cyanobacteria Dolichospermum crassum and D. flos …

Non-photochemical chlorophyll fluorescence quenching (NPQ) remains one of the most
studied topics of the 21st century in photosynthesis research. Over the past 30 years …

The instantaneous rate of photosynthetic CO 2 assimilation in C 3 plants has generally been
studied in model systems such as isolated chloroplasts and algae. From these studies and …

In recent years, chlorophyll a fluorescence measurements have been increasingly applied to
various fields of plant physiology. Chlorophyll can be regarded as an intrinsic fluorescent …

In photosynthetic membranes isolated from pea leaves, the redox state of the plastoquinone
pool controls both the level of phosphorylation of the chloroplast light-harvesting pigment …

The subject is reviewed under the headings: methodology; turgor regulation in guard cells;
and the biology of stomatal responses (to light, CO2, ABA and other phytohormones …

A detailed study of the photo-induced decline in chlorophyll af fluorescence intensity
(Kautsky phenomenon) in coupled isolated chloroplasts from a high level (P) to a low …

Chlorophyll (Chi) a fluorescence has become an important non-invasive tool to investigate
the utilization and dissipation of absorbed light energy in photosynthesis. In particular …