Corrigendum

Evaluation of genetic diversity: Which of the varieties can be named ,Rebula' (Vitis vinifera L.)?Vitis 49 (4), 129-136 (2010

Evaluation of genetic diversity: Which o f the v arieties can be named 'Rebula' (Vitis vinifera L.)?

The variety 'Rebula' is an indigenous but also ancient variety in the Slovenian and Italian world-renowned winegrowing district Collio dating back to the ages of the Roman Empire. The DNA analyses of the variety ‘Rebula’ and its potential related varieties were conducted to evaluate its biodiversity. The variety 'Rebula' showed a very low similarity (16 %) with other analysed varieties, also with 'Rebula briška' and 'Rebula-old'. The varieties called 'Prosecco', 'Števerjana', 'Beli teran' and 'Briška Glera' revealed identical genotypes in all 11 SSR microsatellites analysed, therefore are regarded as synonyms. The varieties 'Rebula' and 'Ribolla gialla' revealed the identical SSR profile at 8 out of 9 SSR loci. 'Vitovska Grganja' share with 'Vitouska' only 55 % of analysed alleles but show their first degree relationship. The DNA analysis still showed existing deviations in synonyms and homonyms linked to the variety 'Rebula' what impedes its standardisation and revitalization.

The response of Monoterpenes to Different Enzyme Preparations in Gewürztraminer (Vitis vinifera L.) Wines

The α-terpineol, linalool, nerol and geraniol, which are the main aromatic monoterpenes in the grapevine varietyGewürztraminer, were determined in the grapes, must and wine after treatment with six different pectolytic enzymes[Lallzyme-β (‘Lall’); Rohavin VR-C (‘VRX’), Rohapect D5L (‘D5L’), Rohavin MX (‘MX’), Rohapect VRC (‘VRC’),Endozym cultivar A (‘Cult. A’)], and after treatment with β-glucosidase (βG, EC 3.2.1.21). The concentrations ofmonoterpenic compounds were determined by solid-phase microextraction (SPME) and GC-MS. The most abundantmonoterpene in the grapes of Gewürztraminer was geraniol (66.7 μg/L), followed by nerol (13.3 μg/L), α-terpineol(7.8 μg/L) and finally linalool (3.3 μg/L). Gewürztraminer wine from must treated with the Lall enzyme preparationwas the most aromatic, which was also confirmed by chemical and sensory analysis in which the concentrations ofnerol (45.9 μg/L), geraniol (31.8 μg/L), α-terpineol (10.5 μg/L) and linalool (6.1 μg/L) were determined. The winesproduced from must treated chemically with enzymes showed higher concentrations of many of the monoterpenecompounds compared to the control, although the sensorial analysis did not affirm this convincingly

Israeli germplasm: phenotyping and genotyping of native grapevines (Vitis vinifera L.)

In this study 32 grapevine accessions from Israel were phenotyped according to O.I.V descriptors and phyllometry, furthermore genotyped with seven microsatellite loci for the first time for further clarification of their potential biodiversity and phylogenetic grapevine analysis. The results according to the SSR microsatellites suggest that the majority of the studied Israeli grapevine accessions, compared to the international reference varieties, show considerably different genotypes - nine accessions showed a unique (individual) genotype, further three accessions represented a first group, four accessions represent a second group and eight groups contained two different accessions. The significant differences among the studied grapevine accessions were observed also in most of the 17 phyllometric measurements of significant leaf characteristics, especially in the leaf area, vein length (L1, L2, L3 and L4), depth of lateral sinuses (OS, OI), petiol length (Lp) and vein angles (β, β’). The observed grapevine characteristics according to the O.I.V. descriptors suggested that more than three-quarters of the studied accessions showed characteristics of table grapes

Ampelographic characterisation of grapevine accessions denominated 'Refošk', 'Refosco', 'Teran' and 'Terrano' (Vitis vinifera L.) from Slovenia, Croatia and Italy

Grapevines denominated 'Refošk', 'Refosco', 'Teran' and 'Terrano have been cultivated in the area of western Slovenia, north-western Croatia and north-eastern Italy for centuries. Despite historical documents reporting the longstanding tradition of grapevine cultivation and winemaking, the denomination and origin of these varieties is still questionable. The aims of this work were to study the genetic identity and relationship of the grapevine accessions denominated 'Refošk', 'Refosco', 'Teran' and 'Teranno' that have been traditionally cultivated in Slovenia, Croatia and Italy. For this purpose, 9 SSR loci were analysed to fingerprint 53 accessions with denominations or similar true-to-type morphologies of 'Refošk' and 'Teran'. The grapevine variety 'Refošk' cultivated in Slovenia and most accessions denominated 'Teran' in Croatia showed identical genotypes in all analysed SSR markers, and can therefore be used as synonyms. Five accessions showed identical genotypes to 'Refosco dal peduncolo rosso' variety, however five other genotyped accessions suggested individual profiles, and can be characterized as clonal mutants of true-to-type 'Refošk'/'Teran'. Accessions 'Sladki Teran' and 'Ref5/31' shared 56 % and 61 % of the alleles with true-to-type profiles of 'Refošk'/'Teran' and their parentage analysis strongly suggested a full-siblings relationship. Obtained results contribute to the understanding of the genetic diversity of grapevine varieties cultivated in this part of Europe

Unraveling the genetic origin of 'Glera', 'Ribolla Gialla' and other autochthonous grapevine varieties from Friuli Venezia Giulia (northeastern Italy)

'Glera' and 'Ribolla Gialla' are the most economically relevant local grapevine cultivars of Friuli Venezia Giulia region (north-eastern Italy). 'Glera' is used to produce the world-renowned Prosecco wine. 'Ribolla Gialla' cultivation is constantly increasing due to the strong demand for sparkling wine and is the most important variety in Brda (Slovenia). Knowledge of local varieties history in terms of migration and pedigree relationships has scientific and marketing appeal. Following prospections, genotyping and ampelographic characterization of minor germplasm in Friuli Venezia Giulia, a further research was developed to understand the parentage relationships among the grapevine varieties grown in this region. An integrated strategy was followed combining the analysis of nuclear and chloroplast microsatellites with the Vitis 18k SNP chip. Two main recurrent parents were found, which can be regarded as "founders": 'Vulpea', an Austrian variety parent-offspring related with at least ten Friuli Venezia Giulia cultivars, among them 'Glera', and 'Refosco Nostrano', first degree related with other six Friuli Venezia Giulia varieties. 'Ribolla Gialla' was shown to be another member of the impressively long list of offspring derived from the prolific 'Heunisch Weiss'. Combining molecular markers and historical references was a high-performance strategy for retracing and adjusting the history of cultivars

A pyrazine bis-adduct of a binuclear rhodium(II) carboxylate containing 3,4,5-triethoxybenzoate as the equatorial ligand

The title compound, tetrakis(μ-3,4,5-triethoxy­benzoato-κ2O:O′)­bis­[(pyrazine-κN)­rhodium(II)](Rh—Rh), [Rh2(C13H17O5)4(C4H4N2)2], crystallizes on an inversion centre in the triclinic space group P ‾1. The equatorial carboxyl­ate ligands bridge the two RhII atoms, giving a binuclear lantern-like structure. The pyrazine mol­ecules occupy the two axial coordination sites. The phenyl rings are tilted by ca 10° with respect to the attached carboxyl­ate groups. The pyrazine planes have a torsion angle of ca 19° around the Rh—N bond with respect to the plane of the nearer carboxyl­ate group and are not coplanar with the Rh—Rh bond.Instituto de Física La Plat

Linking high-frequency DOC dynamics to the age of connected water sources

Acknowledgments The authors would like to thank our NRI colleagues for all their help with field and laboratory work, especially Audrey Innes, Jonathan Dick, and Ann Porter. We would like to also thank Iain Malcolm (Marine Scotland Science) for providing AWS data and the European Research Council ERC (project GA 335910 VEWA) for funding the VeWa project. Please contact the authors for access to the data used in this paper. We would also like to thank the Natural Environment Research Council NERC (project NE/K000268/1) for funding.Peer reviewedPublisher PD

Microglial activation in Parkinson’s disease using [18F]-FEPPA

BACKGROUND: Neuroinflammatory processes including activated microglia have been reported to play an important role in Parkinson’s disease (PD). Increased expression of translocator protein (TSPO) has been observed after brain injury and inflammation in neurodegenerative diseases. Positron emission tomography (PET) radioligand targeting TSPO allows for the quantification of neuroinflammation in vivo. METHODS: Based on the genotype of the rs6791 polymorphism in the TSPO gene, we included 25 mixed-affinity binders (MABs) (14 PD patients and 11 age-matched healthy controls (HC)) and 27 high-affinity binders (HABs) (16 PD patients and 11 age-matched HC) to assess regional differences in the second-generation radioligand [(18)F]-FEPPA between PD patients and HC. FEPPA total distribution volume (V (T)) values in cortical as well as subcortical brain regions were derived from a two-tissue compartment model with arterial plasma as an input function. RESULTS: Our results revealed a significant main effect of genotype on [(18)F]-FEPPA V (T) in every brain region, but no main effect of disease or disease × genotype interaction in any brain region. The overall percentage difference of the mean FEPPA V (T) between HC-MABs and HC-HABs was 32.6% (SD = 2.09) and for PD-MABs and PD-HABs was 43.1% (SD = 1.21). CONCLUSIONS: Future investigations are needed to determine the significance of [(18)F]-FEPPA as a biomarker of neuroinflammation as well as the importance of the rs6971 polymorphism and its clinical consequence in PD