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Nova Hedwigia
J. Cramer in der Gebruder Borntraeger Verlagsbuchhandlung
Nova Hedwigia

J. Cramer in der Gebruder Borntraeger Verlagsbuchhandlung

0029-5035

Nova Hedwigia/Journal Nova HedwigiaSCIISTPAHCI
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    Checklist of phytoplankton of the tropical Persian Gulf and Sea of Oman

    Attaran-Fariman, GilanAsefi, Mohammad Ali
    51页
    查看更多>>摘要：This study aims to provide an inclusive checklist of phytoplankton species in the Sea of Oman and the Persian Gulf from 1979 to 2019. The phytoplankton species listed in the literature, as well as their current, verified, and approved names, are used in this study. A complete list of phytoplankton species in the Persian Gulf and Sea of Oman is so far missing. Total 1101 phytoplankton taxa were recorded during this period, belonging to 244 genera, which consists of two main groups of diatoms, including 605 species (55%) and dinoflagellates with 477 species (43%), while other phytoplankton with 19 species belong to 14 genera (2%). Among the diatoms in the Persian Gulf and the Sea of Oman, the genus Navicula with 53 species and in the dinoflagellates the genus Protoperidinium with 74 species were predominant of the total species listed, 53 species of phytoplankton have the potential to form harmful algal blooms. This checklist can assist as a basis for a better understanding of the present phytoplankton biodiversity as well as for potential community changes due to invasive taxa.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    Apatococcus lobatus (Trebouxiophyceae) dominates green algal biofilms on roof tiles in Northern Germany

    Karsten, UlfPeine, ManuelaGustavs, LydiaSchumann, Rhena...
    18页
    查看更多>>摘要：Aeroterrestrial green algae form striking biofilms on many man-made substrates. While biomass growth and decline of green algal biofilms are linked to seasonality, the variability of their species composition in consequence of seasonally changing abiotic conditions has not been investigated yet under an oceanic climate. Few snapshot-like studies exist, but systematic studies on the seasonal dynamics of such communities are lacking. Therefore, green algal biofilms were regularly sampled on roof tiles for 12 months at an outdoor weathering stand, and analyzed by direct microscopy and a molecular finger-print technique (DGGE). In parallel, subsamples were incubated in enrichment media and the resulting algal communities were again evaluated and determined using morphological and molecular markers. The data indicate the permanent dominance of Apatococcus lobatus (Chodat) J.B.Petersen 1928 (50???100%) over the course of the seasons with only temporarily co-occurring green algal taxa. In contrast, in enrichment culture A. lobatus was less abundant, while other genera (Chlorella, Chloroidium, Stichococcus) dominated. The natural biofilms are characterized by low algal biodiversity and high abundance of A. lobatus, which can be explained by a combination of morphological ecophysiological, biochemical adaptive traits and a high competitive strength.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    Assessments of extinction risk for bryophytes from Madagascar and Indian Ocean islands

    Araujo, Ana ClaudiaSignorino, GiuseppeBrummitt, Neil
    43页
    查看更多>>摘要：In this paper, assessments of extinction risk for 41 species of bryophytes found on Madagascar and/or adjacent islands of the western Indian Ocean are presented, which are taken from assessments of a sample of 1500 bryophyte species selected at random from around the world. This is itself a contribution towards the IUCN Red List and the Red List Index, which measures trends in extinction risk of biodiversity and is one of the headline indicators of the UN Convention on Biological Diversity. Assessments of the selected species followed the IUCN Red List Categories and Criteria and represent a significant further step in the evaluation of threatened Indian Ocean bryophytes. There are 35 species endemic to one or other Indian Ocean island, while six are shared with the African continent. Of these 41 species, all but one species is listed here as being either threatened with extinction (classified as Vulnerable, Endangered or Critically Endangered) or Near Threatened under IUCN Red List criteria. From this we estimate that more than one third (>37%) of Indian Ocean bryophytes overall and more than half (>54%) of bryophytes found in Madagascar are threatened with extinction, after accounting for additional widespread species in the sample that are considered to be of Least Concern. The principal threat is overwhelmingly from relentless, small-scale deforestation and conversion of natural habitats for subsistence agriculture, and a large majority of the threatened bryophytes assessed in this paper are localised endemics often known from historical collections in single or very few locations.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    The first record of Scapania cuspiduligera (Marchantiophyta: Scapaniaceae) in Turkish and Southwest Asia liverwort flora supported from molecular data

    Batan, NevzatVilnet, AnnaAbay, GokhanErata, Huseyin...
    10页
    查看更多>>摘要：During the recent bryological excursion to the Rize region of Turkey, Scapania cuspiduligera has been collected, it is the first record of this species to Turkey and Southwest Asia. Brief description, illustration, ecological, ITS1-2 nrDNA and trnL-F cpDNA sequence data are provided and discussed.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    Absidia pararepens Jurjevic, M. Kolarik & Hubka (Mucorales, Mucoromycota) was isolated for the first time in South America

    Leite Cordeiro, Thalline RafhaellaGomes da Silva, Suzana Britoda Cruz, Mateus OliveiraFerreira de Lima, Catarina Leticia...
    13页
    查看更多>>摘要：Two specimens of Absidia pararepens Jurjevi , M. Kola ik & Hubka were isolated for the first time from the soil of Fazenda Brejo Reserve Nature, which is an upland forest fragment located in Pernambuco State, Brazil, South America. To date, this species has only been found in the states of New York, Maryland, New Jersey, and Ohio in the United States. In this manuscript, we describe and illustrate the morphology and distribution of the isolated specimens of A. pararepens. This study contributes to the knowledge of the geographical distribution of Mucorales.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    Geopora asiatica sp. nov. from Pakistan

    Jabeen, SanaAsghar, Hafiza SimabNiazi, Abdul RehmanKhalid, Abdul Nasir...
    11页
    查看更多>>摘要：Geopora asiatica is described from Khyber Pakhtunkhwa province, Pakistan. This species can be separated from its closest relative, G. pinyonensis by its larger (25.5-27.4 x 13.6-14.4 mu m) ascospores, wider paraphyses and smaller excipular hairs. Molecular phylogenetic analysis using nuclear ribosomal DNA sequences from the ITS region also supported this taxon as a distinct species.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    Taxonomy and phylogeny of Cortinarius dibaphus, new to Turkey

    Kaygusuz, Oguzhan
    12页
    查看更多>>摘要：Cortinarius dibaphus, an uncommon to rare species in Europe where it is known mainly from Abies alba forest, is reported as a new from Turkey based on morphology and nrITS sequence analyses. It was found in the forest under Abies nordmanniana subsp. equi-trojani, which is a new host. Comprehensive description of the morphological characters, macro and microphotographs of this species are provided, and comparisons with phenologically similar and phylogenetically relat-ed species are discussed.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    Another species complex in myxomycetes: diversity of peridial structures in Lycogala epidendrum

    Leontyev, Dmytro, VSchnittler, MartinIshchenko, YuriQuade, Antje...
    22页
    查看更多>>摘要：Lycogala epidendrum is a conspicuous and widespread myxomycete that has not undergone taxonomic revision for more than a century. A detailed study of the peridium of fruiting bodies collected in Europe, Asia, North and Central America, and Australia has revealed at least 21 morphotypes and 39 ribogroups that are included within the general name L. epidendrum. One or more ribogroups can correspond to one morphotype, but all representatives of a certain ribogroup belong to the same morphotype. Peridial vesicles of L. epidendrum display single crystals, druses, oil droplets, granular accumulations, and orange pigment deposits. These vesicles show three different types of mutual arrangement. These features make it possible to distinguish among morphotypes and are promising diagnostic characters for species likely to be described as new for science. A factor analysis of morphological traits reveals that morphotypes of L. epidendrum differ from each other no less than is the case for other described species of the genus Lycogala. Plasma atomic emission spectroscopy and X-ray photoelectron spectroscopy shows that the crystals in the peridial vesicles are built by compounds containing calcium. Calcium deposits are rare in bright-spored myxomycetes and have never been previously observed in the order Reticulariales. Vesicles of some morphotypes demonstrate the ability for fragmentation, which is reminiscent of cell division. This may indicate that they are formed by the release of portions of the plasmodial cytoplasm out side the developing fruiting body. All species of the genus, including L. flavofuscum, have peridial vesicles.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    Telimena (Telimenaceae, Phyllachorales) species on Neotropical host plants: New species, combinations and revision of species on Polygonaceae

    Mardones, MelissaTrampe-Jaschik, TanjaPiepenbring, MeikeRomberg, Megan K....
    26页
    查看更多>>摘要：In this investigation, we propose a new species in Telimena, T. bromeliae sp. nov. grow-ing on bromeliads with a detailed description, illustrations, and molecular characterisation based on material collected in Costa Rica and Panama. Additionally, four species of Phyllachora occurring on non-graminicolous hosts are transferred into Telimena based on morphological and molecular data: T. amphibola comb. nov. on Inga spp. and T. tenuis comb. nov. on Bauhinia spp. (Fabaceae, Cercidiodeae); T. dominicana comb. nov. on Coccoloba spp.; and T. rubefaciens comb. nov. on Clethra spp. (Clethraceae). The species with newly combined names are redescribed and fully il-lustrated from type specimens and material recently collected in Costa Rica, Florida (USA) and Panama. Additionally, a revision of tropical tar spot fungi on host species belonging to the family Polygonaceae is provided, including a dichotomous key of known species and geographical distri-bution data.
      原文链接:
    • NSTL
    • Gebruder Borntraeger

    Molecular and morphological characterization of a new species of Gloeophyllum (Basidiomycota, Agaricomycetes) from India

    Mattoo, Brij BalaSingh, Avneet PalDhingra, Gurpaul SinghSingh, Sanjay Kumar...
    11页
    查看更多>>摘要：Present paper deals with an interesting species of Gloeophyllum collected from an angiospermous fencing pole in Bhaderwah region, District Doda of Jammu and Kashmir, India. Based on morphological features and phylogenetic analysis of the combined Internal Transcribed Spacer (ITS) and nuclear Large Subunit (nLSU) sequence data, it has been found different from the already described taxa within genus Gloeophyllum, hence described and illustrated as Gloeophyllum longisporum, a species new to science. The holotype specimen is deposited at the Herbarium, Department of Botany, Punjabi University, Patiala (PUN 10722).
      原文链接:
    • NSTL
    • Gebruder Borntraeger