Discussions

Gas exchange analysis of photosynthesis in vivo has become an important tool to measure plant performance, and it is also the core of developing higher yield, water-saving and stress-tolerant crops. The increased availability of commercial plant photosynthesis systems has promoted the expansion of the use range of gas exchange, which is helpful to analyze the response of plants to global environmental changes, such as temperature stress, drought, pollution, elevated atmospheric carbon dioxide concentration and biological stress, which affect the sustainability of agriculture and/or natural ecosystems.

The basic principles of gas exchange are relatively similar at different scales and require measurement of gas concentrations in the surrounding air and the flow rate of air interacting with photosynthetic tissues. Gas exchange methods are now widely used, ranging from organelles to the whole ecosystems/regions to help study the mechanisms by which leaves, plants and ecosystems function and respond to their environment. The continuous development of emerging technologies in biophysics has made it possible to measure gas exchange from the leaf to the ecosystem scale.

Source: https://www.cd-biophysics.com/measurement-of-gas-exchange.html