1,720,957 research outputs found
FIGURE 5 in Taxonomic and phylogenetic appraisal of a new holomorphic Neophyllachora species from Chiang Mai, Thailand
No full textFIGURE 5. Neophyllachora religiosa (MFLU 23-0255, MFLU 23-0257). a. Vertical section through spermatogonia showing spermatia bearing cells and spermatia. b. Spermatia. c. Conidiomata. d. Conidiogenous cells (arrows showing conidiogenous cells), e. Conidia. Scale bars: f–j = 20 µm, k–q = 10 µmPublished as part of Literatus, Irish C. E., Maharachchikumbura, Sajeewa S. N., Withee, Patchareeya, Haituk, Sukanya, Tamakaew, Nisachon, Nguanhom, Jeerapa, Monkhung, Sararat, Thiyagaraja, Vinodhini & Cheewangkoon, Ratchadawan, 2023, Taxonomic and phylogenetic appraisal of a new holomorphic Neophyllachora species from Chiang Mai, Thailand, pp. 259-271 in Phytotaxa 600 (5) on page 267, DOI: 10.11646/phytotaxa.600.5.1, http://zenodo.org/record/812940
FIGURE 3 in Taxonomic and phylogenetic appraisal of a new holomorphic Neophyllachora species from Chiang Mai, Thailand
No full textFIGURE 3. Neophyllachora religiosa (MFLU 23-0254, MFLU 23-0256). a. Tar spot on living leaves. b. Upper leaf surface with symptoms. c. Lower leaf surface with symptoms. d. Pseudostroma e. Horizontal section through pseudostroma. f, g. Vertical section through ascomata. h. Vertical section through peridium. i. Asci and paraphyses. j. Paraphyses. k–n. Asci (In 'l', arrow showing central concave depression; In 'n', arrows showing guttules). o–p. Ascospores (In 'p' arrows showing mucilaginous sheath). u–q. Germinated ascospores. Scale bars: f, g =30 µm, h = 10 µm, i = 50 µm, j = 5 µm, k–n = 20 µm, o–q = 10 µm.Published as part of Literatus, Irish C. E., Maharachchikumbura, Sajeewa S. N., Withee, Patchareeya, Haituk, Sukanya, Tamakaew, Nisachon, Nguanhom, Jeerapa, Monkhung, Sararat, Thiyagaraja, Vinodhini & Cheewangkoon, Ratchadawan, 2023, Taxonomic and phylogenetic appraisal of a new holomorphic Neophyllachora species from Chiang Mai, Thailand, pp. 259-271 in Phytotaxa 600 (5) on page 265, DOI: 10.11646/phytotaxa.600.5.1, http://zenodo.org/record/812940
Neophyllachora Dayar. & K.D.Hyde 2017
No full text<p> Key to species of <i>Neophyllachora</i></p> <p> 1. Parasitic on <i>Ficus, Myrcia</i> and <i>Myrciaria</i> species..............................................................................................................................2</p> <p> 1’. Parasitic on <i>Psidium</i> species, ascospores thin-walled, short-ellipsoidal covered with thin-walled gelatinous sheath............................................................................................................................................................................................................. <i>N. subcircinans</i></p> <p> 2. Parasitic on <i>Ficus</i>, <i>Myrcia</i> species.....................................................................................................................................................3</p> <p> 2’. Parasitic on <i>Myrciaria</i> species, clavate-fusoid asci........................................................................................................ <i>N. myrciariae</i></p> <p> 3. Parasitic on <i>Myrcia</i> species, fusoid asci, ascospores covered with gelatinous sheath.......................................................................4</p> <p> 3’. Parasitic on <i>Myrcia</i> species, lunate-reniform to half-moon shape ascospores with thick walled............................. <i>N. truncatispora</i></p> <p> 4. Elliptic-Oblong ascospores with microguttulate cytoplasm......................................................................................... <i>N. cerradensis</i></p> <p> 4’. Lunate ascospores with thin-walled................................................................................................................................... <i>N. myrciae</i></p> <p> 5. Parasitic on <i>Ficus</i>, globose to ellipsoidal ascospores with gelatinous.............................................................................. <i>N. religiosa</i></p> <p> 5’. Parasitic on <i>Ficus</i>, globose to subglobose ascospores without gelatinous sheath...................................................................... <i>N. fici</i></p>Published as part of <i>Literatus, Irish C. E., Maharachchikumbura, Sajeewa S. N., Withee, Patchareeya, Haituk, Sukanya, Tamakaew, Nisachon, Nguanhom, Jeerapa, Monkhung, Sararat, Thiyagaraja, Vinodhini & Cheewangkoon, Ratchadawan, 2023, Taxonomic and phylogenetic appraisal of a new holomorphic Neophyllachora species from Chiang Mai, Thailand, pp. 259-271 in Phytotaxa 600 (5)</i> on page 268, DOI: 10.11646/phytotaxa.600.5.1, <a href="http://zenodo.org/record/8129400">http://zenodo.org/record/8129400</a>
Molecular and morphological characterization of Phyllactinia cassiae-fistulae (Erysiphaceae; Ascomycota) from Thailand
Get PDFPhyllactinia cassiae-fistulae and its Ovulariopsis anamorph, a causal agent of powdery mildew on Cassia fistula, have been found in Thailand for the first time. Phylogenetic analysis using the 28S ribosomal DNA sequences clearly demonstrated that P. cassiae-fistulae distinctly formed a unique clade at the basal part of Phyllactinia with 100% bootstrap support. This phylogenetic analysis supports the unique morphology of P. cassiae-fistulae anamorph having cylindrical-ellipsoil conidia and short conidiophores similar to Oidium species.Keywords: Morphology, phylogeny, powdery mildew, Cassia fistula, Senna siameaAfrican Journal of Biotechnology Vol. 12(2), pp. 109-11
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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