Mating type idiomorphs of Pyrenophora teres in Turkey

Pyrenophora teres f. maculata (Ptm) and Pyrenophora teres f. teres (Ptt) causes spot form and net form of net blotch diseases of barley, respectively. Although both forms of P. teres are morphologically similar, their symptoms and genetic background differ. In this study, 175 single spore (109 Ptm and 66 Ptt) isolates obtained from different regions of Turkey were evaluated for their mating type distribution and prevalence. Fungal isolates of both forms were verified using species-speci.c polymerase chain reaction (PCR) primers. For mating type determination studies, duplex PCR was performed using MAT-specific single nucleotide polymorphism primers. Sixty and 49 of 109 Ptm isolates were found as MAT1-1 and MAT1-2 types, respectively and 43 and 23 of 66 Ptt isolates were found as MAT1-1 and MAT1-2 types, respectively. These results show the possibility of sexual reproduction among the Ptm isolates in Turkey and Ptt population of Central Anatolia, Turkey. However, the overall pattern of Ptt isolates did not support the sexual reproduction hypothesis in Turkey. Sexual reproduction in the life cycle of P. teres is important since it could lead to genetic and pathogenic variation. As a result of new sexual combinations more virulent pathotypes of P. teres may occur

METIS research advances towards the 5G mobile and wireless system definition

[EN] The Mobile and wireless communications Enablers for the Twenty-twenty Information Society (METIS) project is laying the foundations of Fifth Generation (5G) mobile and wireless communication system putting together the point of view of vendors, operators, vertical players, and academia. METIS envisions a 5G system concept that efficiently integrates new applications developed in the METIS horizontal topics and evolved versions of existing services and systems. This article provides a first view on the METIS system concept, highlights the main features including architecture, and addresses the challenges while discussing perspectives for the further research work.Part of this work has been performed in the framework of the FP7 project ICT-317669 METIS, which is partly funded by the European Commission. The authors would like to acknowledge the contributions of their colleagues in METIS with special thanks to Petar Popovski, Peter Fertl, David Gozalvez-Serrano, Andreas Hoglund, Zexian Li, and Krystian Pawlak. Also thanks to Josef Eichinger and Malte Schellmann for the fruitful discussions during the revision of this article.Monserrat Del Río, JF.; Mange, G.; Braun, V.; Tullberg, H.; Zimmermann, G.; Bulakci, O. (2015). METIS research advances towards the 5G mobile and wireless system definition. 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Phenological, morphological and genetic characterization of local grapevine (Vitis labrusca L.) genotypes grown in the Black Sea Region in Northern Turkey

Vitis labrusca has become widely naturalized in the Black Sea region of Northern Turkey. The aim of this work was to evaluate the morphological, phenological, and genetic characteristics of V. labrusca accessions grown in the Black Sea region during the last three growing seasons. Local genotypes were described according to the Organisation Internationale de la Vigne et du Vin (OIV) ampelographic descriptor, including shoot length (cm), mature leaf size, bunch length and width, berry length and width, berry weight, number of berries, Total Soluble Solids (TTS) and titratable acidity. Additionally, phenological data, including bud burst, flowering, veraison and harvest date, were recorded. The accessions were characterized at the molecular level, and genetic relationships were assessed by means of Inter Simple Sequence Repeat (ISSR) markers. Using 6 ISSR primers, seventy-seven bands were obtained, of which 69 were polymorphic with a mean polymorphic rate of 88.68%. These ISSR primers produced polymorphism information content (PIC) values ranging from 0.48 to 0.5. The genetic similarity ranged from 0.08 to 0.83 among the genotypes. According to the dendrogram based on the ISSR analysis, Accessions 8 and 5 were genetically related, with a coefficient of similarity of 0.83, while Accession 3 was the most distantly related genotype, with a coefficient of similarity of 0.08. These results demonstrated that ISSR markers can be used for genetic diversity analysis among V. labrusca genotypes. Our results also described characteristics of new V. labrusca genotypes that could be valuable for future Marker-Assisted Selection (MAS) and grapevine breeding. © (2023), (United Arab Emirates University). All Rights Reserved

Comparison of recycled glass and recycled concrete aggregates bearing mortar mixtures exposed to high temperature, abrasion and drying

In this study, the effects of recycled glass (RG) and recycled concrete (RC) fine aggregates on the drying-shrinkage, carbonation, high temperature and abrasion resistance of mortar mixtures were investigated comparatively. In addition, durability performance of the mortar mixtures was investigated through micro-structural analysis. For this purpose, 9 different mortar mixtures were prepared by replacing 25, 50, 75 and 100 wt.% of crushed-limestone fine aggregate with recycled glass and recycled concrete aggregates. Except for the abrasion resistance, the RG mixtures showed better durability performance than the control mixture. However, the RC mixtures containing more than 50% recycled aggregate showed lower performance than the control mixture. © 2018, College Publishing. All rights reserved