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Ultrastructure and development of the floral nectary from Borago officinalis L. and phytochemical changes in its secretion.
Plant Sci
August 2024
Dept. of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, Rome 00133, Italy. Electronic address:
Although Boraginaceae have been classified as good sources of nectar for many insects, little is still known about their nectar and nectaries. Thus, in the present contribution, we investigated the nectar production dynamics and chemistry in Borago officinalis L. (borage or starflower), together with its potential interaction capacity with pollinators.
View Article and Find Full Text PDFRedox potential change by the cystine importer affected on enzymatic antioxidant protection in Deinococcus geothermalis.
Antonie Van Leeuwenhoek
June 2020
Department of Biology, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea.
Radiation resistant bacteria genus Deinococcus species were well studied on DNA repair and anti-oxidative stress response mechanisms. There are many protection factors as enzymatic and nonenzymatic involved. One of them is intracellular redox potential as like thiol compounds including cysteine acts as primary protectant against oxidation stress.
View Article and Find Full Text PDFInfluence of the hormonal changes during the normal menstrual cycle in healthy young women on soluble adhesion molecules, plasma homocysteine, free radical markers and lipoprotein fractions.
Int Angiol
September 2003
Department of Medicine, North Staffordshire Hospital, Stoke-on-Trent, UK.
Aim: Female sex hormones are known to exert a protective role on the vascular endothelial function, but the exact mechanisms of such protection is not known. We aimed to study the possible regulatory role of the female sex hormones changes during the normal menstrual cycle on soluble adhesion molecules E-selectin and ICAM-1, plasma homocyteine, free radical markers and lipoproteins in healthy young women.
Experimental Design: a cross sectional study of healthy female volunteers studied during a single normal menstrual cycle at 3 specific time points.
Emotional changes during experimentally induced hypoglycaemia in type 1 diabetes.
Biol Psychol
April 2003
Research Institute of the Diabetes Academy Mergentheim, P.O. Box 1144, D-97961 Bad Mergentheim, Germany.
Emotional changes during experimentally induced hypoglycaemia in type 1 diabetic patients were investigated using a hyperinsulinaemic glucose clamp. In the experimental group (n=11), blood glucose was stabilised at euglycaemia (5.6 mmol/l, phase 1), then lowered to 2.
View Article and Find Full Text PDFInduction and Regeneration of Autoplasts from Clostridium thermohydrosulfuricum JW102 and Thermoanaerobacter ethanolicus JW200.
Appl Environ Microbiol
October 1993
Center for Biological Resource Recovery and Departments of Microbiology and Biochemistry, University of Georgia, Athens, Georgia 30602.
Autolysis was induced to form stable, cell wall-free cells of Clostridium thermohydrosulfuricum JW102 and Thermoanaerobacter ethanolicus JW200, using a complex medium containing glycine (0.4% wt/vol) and/or sucrose or glycerol (10% wt/vol) at an optimum temperature of 64 degrees C. Autoplasts of both bacteria were grown as L-phase colonies on solid medium; more than 50% of these colonies regenerated to the walled form during prolonged incubation.
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