R. Katzinger et al., INVESTIGATIONS OF PHOTON-EMISSION FROM WHEAT DURING OZONE EXPOSURE BYMEANS OF A PORTABLE SINGLE-PHOTON COUNTER, Phyton, 37(3), 1997, pp. 125-130
Photon emission is inherently associated with fundamental biological p
rocesses such as cell division, photosynthesis, stress or death of org
anisms. For demonstrating the potential use of photon emission for mon
itoring stress effects on plants, we designed and performed a series o
f experiments about the physiological effects of ozone. The photon emi
ssion of wheat (Triticum aestivum cv. Perlo) was recorded by means of
a portable single photon counter. The results showed that photon emiss
ion of green plants acts as an indicator of ozone stress response and
that a portable photon counter can be used successfully for detailed a
nd sensitive in situ investigations of photon emission from stressed p
lants. This analytical method may complement other techniques used in
plant physiology, especially those for studying effects on photosynthe
sis.