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.

[Pathogenetic and clinical features of cerebral venous thrombosis].

Objective: To study the etiopathogenetic and clinical features of inpatients with venous thrombosis.

Material And Methods: The analysis of 25 medical cases of patients with venous thrombosis was performed.

Results: Cerebral venous thrombosis most often developed in females (88%), the average age was 36 years.