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Cittadella, Italy

Zucca P.,University of Cagliari | Sanjust E.,University of Cagliari | Loi M.,University of Cagliari | Sollai F.,University of Cagliari | And 3 more authors.
Phytochemistry | Year: 2013

Ferula communis (L.), a plant belonging to Apiaceae, is widely present in Sardinia, Italy. Currently, interest in F. communis focuses on the presence of two chemotypes in the wild. One chemotype is poisonous to animals, whereas the other chemotype is non-poisonous. Polyphenol oxidase (PPO) has been extracted and partially purified from the two chemotypes of F. communis. The biochemical characterization of the enzymes showed significant differences. In particular, while the two PPOs were not able to use 6- and 7-hydroxycoumarin as substrates, they showed distinct specificity for 6,7- and 7,8-dihydroxycoumarin. Significant differences in the enzyme behavior towards common PPO inhibitors were also observed. In addition, activation energy and activation energy for denaturation were determined, showing significant differences between FP-PPO and FNP-PPO, particularly for denaturation kinetics. The possible roles of the two PPOs in determining differences in composition and toxicity of the two F. communis chemotypes are also discussed. © 2013 Elsevier Ltd. All rights reserved.

Ardenghi N.M.G.,University of Pavia | Galasso G.,Sezione di Botanica
Willdenowia | Year: 2014

Commelina virginica, a North American xenophyte recorded in the Euro-Mediterranean area since the late 19th century, is excluded from the flora of this region. As a result of extensive literature and herbarium research, all the records of this species proved to be erroneous and referable mostly to C. communis. The first historical and misleading record of C. virginica is discussed in detail and the diagnostic morphological features actually accepted to distinguish the two species are reported. © 2014 BGBM Berlin-Dahlem.

The identity of Enrico (born Henry) Groves is discussed and the following four E.Groves’ names are lectotypified: Anthemis hydruntina (Asteraceae), Centaurea deusta var. nobilis (Asteraceae), Centaurea deusta var. tenacissima (Asteraceae) and Statice cancellata var. japygica (Plumbaginaceae). © 2016 Magnolia Press.

Bartolucci F.,University of Camerino | Galasso G.,Sezione di Botanica
Phytotaxa | Year: 2016

The genus Liparis Richard (1817: 21) comprises about 320 species, broadly distributed worldwide but mainly in tropical and subtropical areas (Pridgeon et al. 2005). In Europe only the circumboreal L. loeselii (Linnaeus 1753: 947) Richard (1817: 38) occurs (Hultén & Fries 1986). Recently the new taxon L. loeselii (L.) Rich. subsp. nemoralis Perazza et al. (2012: 489) was described from northeastern Italy. It is endemic to Friuli Venezia Giulia, Veneto and Trentino-Alto Adige (Perazza & Lorenz 2013, Peruzzi et al. 2014). © 2016 Magnolia Press.

Iamonico D.,University of Rome La Sapienza | Galasso G.,Sezione di Botanica | Banfi E.,Sezione di Botanica | Ardenghi N.M.G.,University of Pavia
Taxon | Year: 2015

The typification of the Linnaean names Vitis laciniosa and V. vinifera var. apyrena is discussed. The names are lectoand neotypified, respectively, using specimens from LINN. © International Association for Plant Taxonomy (IAPT) 2015.

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