Measurement of cytosolic-free Ca²⁺ in plant tissue

Calcium imaging perspectives in plants

The calcium ion (Ca²⁺) is a versatile intracellular messenger. It provides dynamic regulation of a vast array of gene transcriptions, protein kinases, transcription factors and other complex downstream signaling cascades. For the past six decades, intracellular Ca²⁺ concentration has been significantly studied and still many studies are under way. Our understanding of Ca²⁺ signaling and the corresponding physiological phenomenon is growing exponentially. Here we focus on the improvements made in the development of probes used for Ca²⁺ imaging and expanding the application of Ca²⁺ imaging in plant science research.