GUERRINA , Maria

Note sulla germinazione in vitro di Primula allionii Loisel. e Primula marginata Curtis, due specie endemiche delle Alpi Marittime. Il protocollo potrebbe essere di grande utilità per operazioni di conservazione ex situ e interventi di conservazione in situ.

Primula allionii is a primrose endemic to Maritime Alps. The plant was studied in three different plots representing the different structures of cliffs where the species usually lives. The reproductive success of the plant was analyzed in order to evaluate its conservation status. Mean plant dimensions and distribution within the plots were...

Future climate change may lead to a substantial loss of biodiversity, particularly affecting mountain regions, including the Alps. Range-size reduction in high mountain plant species is predicted to be more pronounced for endemic species. Investigating the broad temporal spectrum of range shifts is important for the conservation of...

Primula allionii Loisel. is a primrose endemic to Maritime Alps. Flower and pollen features related to pollination mechanism were analyzed, and the seasonal presence of insects visiting the plant was monitored.

Climate change is known to have a profound influence on plant reproduction, mainly because it affects plant/pollinator interactions, sometimes driving plants to extinction. Starting from the Neogene, the European climate was subjected to severe alterations. Nevertheless, several genera, including Berardia, survived these climatic changes....

The main objectives of the Ligurian Germplasm Bank are to conserve and to study endemic, rare, threatened and policy species from Liguria Region. In order to achieve these goals, we collected and stored accessions representative of morphological and genetic diversity of the studied taxa.

Cinque lotti di semi di Brassica montana provenienti da quattro località diverse della Liguria, sottoposte a condizioni di stoccaggio differenti, sono stati sottoposti a test di germinazione e hanno mostrato differenze significative.

Primula allionii is endemic to a tiny area of the Maritime Alps and has one of the narrowest distribution ranges in this hotspot of biodiversity. Phylogeographical patterns in P. allionii were studied using plastid DNA markers and dominantly inherited markers (AFLP and ISSR) to verify any admixture between P. allionii and the sympatric P....

Reduction of pollen flow can affect plant abundance and population viability and cause selection on plant mating system and floral traits. Little is known on the effect of this phenomenon in species naturally restricted to small and isolated habitats, that may have developed strategies to cope with long-term isolation and small population size....

The Maritime and Ligurian Alps have a flora characterised by a very high number of endemic species in relation to their small geographical extension. This area is considered one of the most important centres of diversification of the Alps and a Mediterranean hotspot of biodiversity. In the last years many studies were performed in order to...

Endemic species are exposed at an increased extinction risk by global warming; in fact, they are likely more dispersal-limited and less genetically variable, thus less able to rapidly adapt to climate change than species with broader distribution.The present study is aimed at using Berardia subacaulis as a model to investigate how future global...

Berardia subacaulis Vill. is a monospecific genus that is endemic to the South-western Alps, where it grows on alpine screes, which are extreme habitats characterized by soil disturbance and limiting growth conditions. Root colonization by arbuscular mycorrhizal fungi (AMF) is presumably of great importance in these environments, because of its...

Valutazione del livello di rischio della specie sulla base delle conoscenzeattuali. La categoria di rischio assegnata è Criterio D – categoria di rischio: Vulnerable, vu d1.