scholarly journals The Assessment and the Within-Plant Variation of the Morpho-Physiological Traits and VOCs Profile in Endemic and Rare Salvia ceratophylloides Ard. (Lamiaceae)

Author(s):  
Rosa Vescio ◽  
Maria Rosa Abenavoli ◽  
Fabrizio Araniti ◽  
Adriano Sofo ◽  
Valentina Lucia Astrid Laface ◽  
...  

Salvia ceratophylloides (Ard.) is an endemic, rare, threatened plant species recently rediscovered in very few individuals in two different sites of South Italy. The study of within-plant variation more than among-plant one is fundamental to understand the plant adaptation to the local conditions, especially in rare species, and consequently to preserve plant biodiversity. Here, we reported the variation of the morpho-ecophysiological and metabolic traits between the sessile and petiolate leaf of S. ceratophylloides plants in two different sites for understanding the adaptation strategies for surviving in these habitats. The S. ceratophylloides individuals exhibited different net photosynthetic rate, maximum quantum yield, light intensity for the saturation of the photosynthetic machinery, stomatal conductance, transpiration rate, leaf area, fractal dimension and some VOCs between the different leaf types. This within-plant morpho-physiological and metabolic variation was depended on the site. These results provide empirical evidence of sharply within-plant variation of the morpho-physiological traits and VOCs profiles in S. ceratophylloides which could be because of adaptation to the local conditions.

Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 474
Author(s):  
Rosa Vescio ◽  
Maria Rosa Abenavoli ◽  
Fabrizio Araniti ◽  
Carmelo Maria Musarella ◽  
Adriano Sofo ◽  
...  

Salvia ceratophylloides (Ard.) is an endemic and rare plant species recently rediscovered as very few individuals at two different Southern Italy sites. The study of within-plant variation is fundamental to understand the plant adaptation to the local conditions, especially in rare species, and consequently to preserve plant biodiversity. Here, we reported the variation of the morpho-ecophysiological and metabolic traits between the sessile and petiolate leaf of S. ceratophylloides plants at two different sites for understanding the adaptation strategies for surviving in these habitats. The S. ceratophylloides individuals exhibited different net photosynthetic rate, maximum quantum yield, light intensity for the saturation of the photosynthetic machinery, stomatal conductance, transpiration rate, leaf area, fractal dimension, and some volatile organic compounds (VOCs) between the different leaf types. This within-plant morpho-physiological and metabolic variation was dependent on the site. These results provide empirical evidence of sharply within-plant variation of the morpho-physiological traits and VOCs profiles in S. ceratophylloides, explaining the adaptation to the local conditions.


Plants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1779
Author(s):  
Nusrat Ali ◽  
Elise Réthoré ◽  
Jean-Claude Yvin ◽  
Seyed Abdollah Hosseini

It has been long recognized that silicon (Si) plays important roles in plant productivity by improving mineral nutrition deficiencies. Despite the fact that Si is considered as ‘quasi–essential’, the positive effect of Si has mostly been described in resistance to biotic and tolerance to abiotic stresses. During the last decade, much effort has been aimed at linking the positive effects of Si under nutrient deficiency or heavy metal toxicity (HM). These studies highlight the positive effect of Si on biomass production, by maintaining photosynthetic machinery, decreasing transpiration rate and stomatal conductance, and regulating uptake and root to shoot translocation of nutrients as well as reducing oxidative stress. The mechanisms of these inputs and the processes driving the alterations in plant adaptation to nutritional stress are, however, largely unknown. In this review, we focus on the interaction of Si and macronutrient (MaN) deficiencies or micro-nutrient (MiN) deficiency, summarizing the current knowledge in numerous research fields that can improve our understanding of the mechanisms underpinning this cross-talk. To this end, we discuss the gap in Si nutrition and propose a working model to explain the responses of individual MaN or MiN disorders and their mutual responses to Si supplementation.


1977 ◽  
Vol 38 (02) ◽  
pp. 0399-0406 ◽  
Author(s):  
Peter N. Walsh ◽  
Richard E. Goldberg ◽  
Richard L. Tax ◽  
Larry E. Magargal

SummaryTo determine whether platelets play a role in the pathogenesis of retinal vein occlusion (RVO), platelets and coagulation were evaluated in 28 patients with RVO. Platelet coagulant activities concerned with the initiation and early stages of intrinsic coagulation were 2–4 fold increased in 9 patients with acute primary RVO but not in patients with acute secondary (10 patients) or chronic (9 patients) RVO. Platelet factor 3 activity, platelet aggregation, serotonin release by platelets and plasma coagulation were normal in all patients. Platelets may provide a trigger mechanism for venous thrombosis in the eye when local conditions permit.


2005 ◽  
Vol 35 (140) ◽  
pp. 379-392
Author(s):  
Helmut Dietrich

Poland accepted the alien and asylum policy of the European Union. But what does it mean, in the face of the fact that most of the refugees don´t want to sojourn a lot of time in Poland, but want to join their families or friends in Western Europe? How the transfer of policies does work, if the local conditions are quite different than in Germany or France? The answer seems to be the dramatization of the refugee situation in Poland, especially the adoption of emergency measures towards refugees of Chechnya.


2016 ◽  
pp. 91-118
Author(s):  
Peter Black

The Sonderdienst (Special Service) was an enforcement agency developed by German SS and Police authorities, specifically in the Lublin District of the so called Government General (central and southeastern German-occupied Poland) to assist in enforcing German occupation ordinances in the cities and particularly in the countryside, where lack of police personnel, ignorance of local conditions, and perceived fear of partisan attack discouraged a direct German police presence. After February 1941, the SS and Police relinquished control over the Sonderdienst to the German civilian occupation authorities. Under civilian authority, the Sonderdienst was deployed at the Kreis level, under command of the so-called German Stadt- and Kreishauptmänner in detachments of approximately 30 men to carry out administrative enforcement activities when the civilian authorities were unable to count or SS and police support. This article examines how the Sonderdienst highlights the dependence of German administration in the Government General on locally recruited auxiliaries, particularly in the countryside. The Sonderdienst was conceived, developed, expanded, and deployed within the context of a bitter battle between German civilian authorities and the SS/police apparatus over control of local executive police power. This is hardly new; yet the Government General is unusual in that the German civilian authorities were able to fight the SS to a draw on this issue. Since its formation followed the recruitment of the “ethnic” and ideological “cream” of the ethnic German population of occupied Poland into agencies such as the Selbstschutz, and the Waffen SS, the Sonderdienst represents an early effort of the National Socialist authorities to fashion an ethnically conscious and ideologically committed corps from young men of questionable, even dubious, German ancestry and heritage. Finally, this study reveals not only the complicity of the civilian authorities in Nazi crimes, but the link in German-occupied Poland between “routine” administrative duties, such as collecting fines for ordinance violations, and the brutal persecution and annihilation of groups targeted as enemies of the German Reich, such as the Polish Jews. Civilian administrators and SS and police authorities shared the “National Socialist consensus” in occupied Poland. They wanted to annihilate the Jews and the Polish intelligentsia, to exploit the labor potential of the Polish masses, and to turn the Government General into a region of German settlement. As a part of this vision, the Sonderdienst was to serve not only as a police executive, but as a political and cultural steppingstone to full acceptance into the German “racial community.” There is no question that, even in “routine” duties, the Sonderdienst participated, more or less willingly, in the implementation of the most evil racist policies of the National Socialist regime.


2016 ◽  
Vol 553 ◽  
pp. 93-109 ◽  
Author(s):  
L Ramajo ◽  
L Prado ◽  
AB Rodriguez-Navarro ◽  
MA Lardies ◽  
CM Duarte ◽  
...  

Author(s):  
J. Ure

The region contains half the area of exotic forest in New Zealand and the major industries dependent thereon. Both are expanding rapidly to meet promising export markets. Local conditions are particularly favourable for this form of primary production and continued expansion is expected.


2018 ◽  
Vol 11 (1) ◽  
pp. 4-26 ◽  
Author(s):  
Felix Fuhg

The emergence and formation of British working-class youth cultures in the 1960s were characterized by an ambivalent relationship between British identity, global culture and the formation of a multicultural society in the post-war decades. While national and local newspapers mostly reported on racial tensions and racially-motivated violence, culminating in the Notting Hill riots of 1958, the relationship between London's white working-class youth and teenagers with migration backgrounds was also shaped by a reciprocal, direct and indirect, personal and cultural exchange based on social interaction and local conditions. Starting from the Notting Hill Riots 1958, the article reconstructs places and cultural spheres of interaction between white working-class youth and teenagers from Caribbean communities in London in the 1960s. Following debates and discussions on race relations and the participation of black youth in the social life of London in the 1960s, the article shows that British working-class youth culture was affected in various ways by the processes of migration. By dealing with the multicultural dimension of the post-war metropolis, white working-class teenagers negotiated socio-economic as well as political changes, contributing in the process to an emergent, new image of post-imperial Britain.


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