751. Zlata trsna rumenica (Grapevine flavescence dorée)Nataša Mehle, 3, other monographs and other completed works Abstract: ZLATA TRSNA RUMENICA (Grapevine flavescence dorée) je neozdravljiva karantenska bolezen trte, pri kateri je obvezno odstranjevanje obolelih rastlin in zatiranje njenega prenašalca ameriškega škržatka. Status: Fitoplazma, povzročiteljica zlate trsne rumenice, je uvrščena v prilogo II.B Izvedbene uredbe Komisije (EU) 2019/2072/.
Keywords: fitoplazma, zlata trsna rumenica, podatkovni list
Published in DiRROS: 04.09.2024; Views: 209; Downloads: 98
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752. Begomovirusi uvrščeni v točko 13.F. Priloge II Uredbe 2019/2072/EUZala Kogej Zwitter, Nataša Mehle, 2021, other monographs and other completed works Abstract: Virusi iz rodu begomovirusov (družina Geminiviridae) lahko okužijo številne vrste rastlin. Opisanih je več kot 400 različnih begomovirusov, od tega jih več kot 200 lahko okuži bučevke in/ali paradižnik. Vsi begomovirusi z izjemo Abutilon mosaic virus, Sweet potato leaf curl virus, Tomato leaf curl New Delhi virus, Tomato yellow leaf curl virus, Tomato yellow leaf curl Sardinia virus, Tomato yellow leaf curl Malaga virus in Tomato yellow leaf curl Axarquia virus, so uvrščeni v točki 13. F priloge II/A Uredbe 2019/2072/EU.
Keywords: begomovirusi, paradižnik, bučevke, bolezenska znamenja
Published in DiRROS: 03.09.2024; Views: 280; Downloads: 172
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754. ICPP 2023 Satellite event: high-throughput sequencing in plant virology: from discovery to diagnostics (Sunday, 20 August 2023 – all day) : Lyon, France2023, other monographs and other completed works Abstract: High-throughput sequencing (HTS) technologies have revolutionized plant virus research and diagnostics by accelerating the discovery of new viruses and by providing a sensitive untargeted approach for the detection of viruses. The latter, together with high data-generation potential of HTS, enables discovery of new and emerging viruses from diverse hosts, archived or ancient samples, and untargeted virus detection in diverse matrices, as well as research on a broad range of topics, such as plant virus epidemiology, diversity, and evolution. Many new plant virus discoveries, increased availability of sequence data, and a lagging biological characterization of HTS-based findings call for a broad consideration on harmonization of sequencing and data analysis approaches, as well as the interpretation of the results from the scientific and regulatory perspective. During this satellite meeting, different aspects of applying HTS in plant virology will be addressed and discussed. Topics will include: discovery and detection of new and emerging viruses; virus diversity, epidemiology, and evolution studies; development of virus detection and identification protocols and validation of HTS-based tests for plant virus diagnostics.
Published in DiRROS: 03.09.2024; Views: 245; Downloads: 144
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760. Nephila spider male aggregation : preference for optimal female size and web clusteringMatjaž Kuntner, Maj Kuntner, Eva Kuntner, Alexandra Bogožalec Košir, Irena Kuntner, Viktorija Tomič, Jana Faganeli Pucer, Erik Štrumbelj, Daiqin Li, 2024, original scientific article Abstract: Sexual size dimorphism theory predicts biased operational sex ratios (OSRs) and an uneven distribution of males among certain females. We studied this phenomenon through a field census of the giant wood spider Nephila pilipes (family Nephilidae) in Singapore, a species where females are, on average, 6.9 times larger than males. Specifically, we tested two hypotheses concerning male distribution, given their tendency to aggregate in certain female webs. The optimal female size hypothesis predicts that males would predominantly occupy webs of intermediate-sized females. The web clustering hypothesis posits that more males would be found in webs closer together compared to those farther apart. Our snapshot census revealed a female-biased OSR (females: males = 1.85) with an uneven distribution of males in female webs. Most males were found in webs of intermediate-sized females aligning with the optimal female size hypothesis. Proximity among female webs was indicative of male presence, lending support to the web clustering hypothesis. While our study's limited sample size warrants caution, we conclude that in N. pilipes, male occupation of female webs is facilitated by the clustering of webs, and males prefer to cohabit with optimally sized, receptive females.
Keywords: sexual size dimorphism, operational sex ratios (OSRs), male distribution, optimal female size hypothesis, web clustering hypothesis, female-biased OSR, intermediate-sized females, proximity of webs, male aggregation, arachnology, behavioral ecology, environmental zoology
Published in DiRROS: 03.09.2024; Views: 248; Downloads: 143
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