Dynamic in vivo monitoring of granum structural changes of Ctenanthe setosa (Roscoe) Eichler during drought stress and subsequent recovery.

Investigating the effects of drought stress and subsequent recovery on the structure and function of chloroplasts is essential to understanding how plants adapt to environmental stressors. We investigated Ctenanthe setosa (Roscoe) Eichler, an ornamental plant that can tolerate prolonged drought periods (40 and 49 days of water withdrawal). Conventional biochemical, biophysical, physiological and (ultra)structural methods combined for the first time in a higher plant with in vivo small-angle neutron scattering (SANS) were used to characterize the alterations induced by drought stress and subsequent recovery.

Reactivation of the Photosynthetic Apparatus of Resurrection Plant during the Early Phase of Recovery from Drought- and Freezing-Induced Desiccation.

is a unique desiccation-tolerant angiosperm that also survives winter frost. As, upon freezing temperatures, desiccates, the taxon is proposed to survive low temperature stress using its desiccation tolerance mechanisms. To reveal the validity of this hypothesis, we analyzed the structural alterations and organization of photosynthetic apparatus during the first hours of recovery after drought- and freezing-induced desiccation.

Salt Stress Affects Plastid Ultrastructure and Photosynthetic Activity but Not the Essential Oil Composition in Spearmint ( L. var. "Moroccan").

High levels of soil salinity affect plant growth, reproduction, water and ion uptake, and plant metabolism in a complex manner. In this work, the effect of salt stress on vegetative growth, photosynthetic activity, and chloroplast ultrastructure of spearmint ( L. var.

Genomic DNA "finger-printing" in diagnostic virology to clarify discrepant HIV results.

Background: We describe two case studies in the antenatal setting where human immunodeficiency virus (HIV) antibody results were discrepant in serial sera. Root cause analysis including genomic DNA fingerprinting was performed.

Objective: To analyze serial sera with HIV antibody discrepant results using genomic DNA "finger-printing" to determine whether the sera were from the same or different individuals.

Evaluation of the validity of high serum antistreptolysin o titre only, as an indication for tonsillectomy.

Serum Antistreptolysin O (ASO) titre is raised when there is infection of any organ of the body, by Group A beta haemolytic streptococci (GABHS), Group C or Group G streptococci [1]. Increased serum ASO titre should not be the only deciding criterion for tonsillectomy if GABHS is not present in the palatine tonsils. In this study, we evaluate the rationality of performing tonsillectomy in raised serum ASO titre only, in absence of GABHS in palatine tonsil.