Light green leaf sectors of variegated Dracaena fragrans plants show similar rates of oxygenic photosynthesis tо that of normal, dark green leaf sectors.

Adaptation and functional significance of chlorophyll deficit in the light green leaf sectors of variegated plants are little known. Efficiency of photosystem II for dark and light adapted states (F/F and ΔF/F') and fluorescence decrease rates (R) of light green leaf sectors of Dracaena fragrans L. were studied by methods of PAM-fluorometry and video registration.

Changes of dorsoventral asymmetry and anoxygenic photosynthesis in response of leaves to the SiO nanoparticle treatment.

Natural SiO nanoparticles (SiO-NPs) are widely distributed in the environment, and at the same time, synthetic SiO-NP may be applied in agriculture. Evaluations of physiological responses to SiO-NPs treatment of plants are controversial. They are often performed at adaxial leaf sides whereas NPs permeate leaf tissues through stomata located at the abaxial leaf side in the majority of bifacial plants.

Chlorophyll fluorometry in evaluating photosynthetic performance: key limitations, possibilities, perspectives and alternatives.

Non-destructive methods for the assessment of photosynthetic parameters of plants are widely applied to evaluate rapidly the photosynthetic performance, plant health, and shifts in plant productivity induced by environmental and cultivation conditions. Most of these methods are based on measurements of chlorophyll fluorescence kinetics, particularly on pulse modulation (PAM) fluorometry. In this paper, fluorescence methods are critically discussed in regard to some their possibilities and limitations inherent to vascular plants and microalgae.