We have constructed a new CO2 microsensor with a tip diameter as small as the thinnest of human hairs. This new microsensor can be positioned in plant tissues in controlled laboratory experiments as well as in the field, and has already revealed some old secrets of submerged aquatic plants.
Can more water efficient photosynthesis be induced in plants? Montero and colleagues find Talinum triangulare can switch on CAM photosynthesis.
Tissue morphology and photosynthetic mode in response to drought in leaves, pseudobulbs and roots of a thick-leaved and a thin-leaved epiphytic orchid.
Sometimes saving water is more important than fixing CO2.