scholarly journals A comparison of the autecology of Quercus robur L. and Q. pyrenaica Wild.: present habitat in Galicia, NW Spain

2007 ◽  
Vol 80 (3) ◽  
pp. 223-239 ◽  
Author(s):  
I. Diaz-Maroto ◽  
P. Vila-Lameiro ◽  
E. Guchu ◽  
M. Diaz-Maroto
Keyword(s):  
Quercus Robur ◽  
Nw Spain

scholarly journals Terpenoid emissions from Quercus robur. A case study of Galicia (NW Spain)

2009 ◽  
Vol 11 (6) ◽  
pp. 1268 ◽  
Author(s):  
Débora Pérez-Rial ◽  
Josep Peñuelas ◽  
Purificación López-Mahía ◽  
Joan Llusià
Keyword(s):  
Quercus Robur ◽  
Nw Spain

Influence of the canopy in the natural regeneration of Quercus robur in NW Spain

Biologia ◽  
2014 ◽  
Vol 69 (12) ◽  
Author(s):  
Olga Vizoso-Arribe ◽  
Ignacio Díaz-Maroto ◽  
Pablo Vila-Lameiro ◽  
Maria Díaz-Maroto
Keyword(s):  
Natural Regeneration ◽  
Quercus Robur ◽  
Climate Change Scenario ◽  
Change Scenario ◽  
Hemispherical Photography ◽  
Nw Spain ◽  
Important Conclusion ◽  
Partial Opening ◽  
The One ◽  
Further Development

AbstractThe problem of natural regeneration of forests, in general, is essential especially under the climate change scenario. The canopy influence on the establishment and growth of oak seedlings supposes an approximation to the still lack of knowledge of oak forests heterogeneity. The management directly concerns the radiation that absorbs the canopy and, therefore, to the undergrowth radiation. The aim of the study was to research the existing relationships between the light percentage that crosses the canopy and comes up to the natural regeneration in native stands of Quercus robur L. in Galicia, in NW Spain. After making the stratification of the stands according to their canopy, data collection was based on the percentage of available light in the undergrowth estimated by means of hemispherical photography.The results show that in areas with a better light percentage, there is a greater regeneration density, which is justified by presenting largest development of the vegetation in the partial opening. The most important conclusion is that San Fitoiro forest is the one with better conditions for seedling establishment, because, the percentage of light reaching the understory are the lowest, providing shade conditions turn out to be a clave factor in the germination of acorns and further development of them.

A comparative study of the antibacterial activity of Quercus robur (Ethanolic extract) and Zinc oxide nanoparticles on Salmonella (In vitro)

2018 ◽  
Vol 9 (SPL1) ◽  
Author(s):  
Hams H. H. Alfattli ◽  
Ghufran Zuhair Jiber ◽  
Ghaidaa Gatea Abbass
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Zinc Oxide Nanoparticles ◽  
Quercus Robur ◽  
Ethanolic Extract ◽  
Inhibitory Effect ◽  
Significant Inhibition ◽  
Oxide Nanoparticles ◽  
Inhibition Zones

This study which designed to evaluate the inhibitory effect of Ethanolic extract of (Quercusrobur) and Zinc oxide nanoparticles on the growth of one genus of enterobacteriacae (Salmonella). In vitro. For this purpose graduate concentrates for plant extract (50, 100, 200, 400 )mg/ml which prepared and compared with Zinc oxide nanoparticles of different concentration (2, 1, 0.5, 0.25) μg/ml,and examined. The result showed that the studied medicinal plant has antibacterial activity against this bacteria which used. The result showed that the plant has good activity in decrease the growth of this bacteria. The results of the study also showed that the nano-ZnO has very effective antibacterial action against the studied bacteria which was Salmonella,nanoparticles concentrations lead to increasing in the inhibition zones of tested bacterial growth. We also study the effect of three antibiotics Lomefloxacin (LOM), Ciprofloxacin (SIP) and Rifampin (RA) and the result showed,in a comparison within the tested bacteria,Salmonella had a significant inhibition increase in Lomefloxacin ; the ciprofloxacin showed effect on tested bacteria. However,Rifampin does not show any effect on tested bacteria.

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