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FIGURE 2 in Penicillium thailandense (Aspergillaceae, Eurotiales), a new species isolated from soil in northern Thailand
No full textFIGURE 2. Penicillium thailandense (SDBR-CMU442, holotype). Colonies incubated at 25°C for one week. a. PDA; b. CYA; c. CYAS; d. CZA; e. DG18; f. MEA; g. OA; h. YES; i. CREA; j–m. Conidiophores; n. Conidia. Scale bars: a–i = 10 mm, j–n = 5 µm.Published as part of Khuna, Surapong, Kumla, Jaturong, Thitla, Tanapol, Hongsanan, Sinang, Lumyong, Saisamorn & Suwannarach, Nakarin, 2023, Penicillium thailandense (Aspergillaceae, Eurotiales), a new species isolated from soil in northern Thailand, pp. 33-45 in Phytotaxa 612 (1) on page 39, DOI: 10.11646/phytotaxa.612.1.2, http://zenodo.org/record/830854
FIGURE 1 in Anteaglonium saxicola (Anteagloniaceae, Pleosporales), a new species isolated from rocks in northern Thailand
No full textFIGURE 1. Phylogram derived from maximum likelihood analysis of a combined nrLSU, nrSSU, ITS, and tef1-α genes of 26 sequences. Bootstrap values ≥ 75% ML (left) and Bayesian posterior probabilities ≥ 0.90 (right) are shown above nodes. The scale bar represents the expected number of nucleotide substitutions per site. Sequence data obtained from this study are in red. Ex-type strains are in bold.Published as part of <i>Suwannarach, Nakarin, Kumla, Jaturong, Khuna, Surapong, Thitla, Tanapol, Senwanna, Chanokned, Hongsanan, Sinang & Lumyong, Saisamorn, 2023, Anteaglonium saxicola (Anteagloniaceae, Pleosporales), a new species isolated from rocks in northern Thailand, pp. 75-84 in Phytotaxa 629 (1)</i> on page 79, DOI: 10.11646/phytotaxa.629.1.6, <a href="http://zenodo.org/record/10254797">http://zenodo.org/record/10254797</a>
Penicillium thailandense N. Suwannarach, S. Khuna & J. Kumla 2023, sp. nov.
No full textPenicillium thailandense N. Suwannarach, S. Khuna & J. Kumla sp. nov. Figure 2 MycoBank number: MB847950. Etymology:—‘ thailandense ’ referring to Thailand, where soil containing the new fungus was collected. Holotype:— THAILAND, Lamphun Province, Mueang Lamphun District, Sribuaban Subdistrict, 18°32′11′′ N, 99°07′30′′ E, isolated from soil in deciduous dipterocarp forest, 10 December 2021, S. Khuna, SDBR-CMU442, preserved in a metabolically inactive state. Gene sequences (from holotype):—ITS (OR186737), BenA (OP603898), CaM (OP603900), and rpb2 (OP603902). Culture characteristics:—Colonies at 25°C for one week on PDA and YES slightly raised or umbonate, colony texture fasciculate, margin undulate; mycelia white; reverse light yellow; soluble light yellow pigment. Colonies on CYA convex, colony texture fasciculate, margin undulate; mycelia grey in the centre, orangish white at the margin; reverse dark brown; exudate present as clear or pale-yellow droplets; soluble brown pigment. Colonies on CYAS sulcate, raised at centre, margin undulate; mycelia white; reverse brown; soluble light brown pigment. Colonies on CZA raised, colony texture fasciculate, margin undulate; mycelia pale orange in the centre, white at the margin; reverse brown; exudate present as clear or pale-yellow droplets; soluble yellow pigment. Colonies on DG 18 flat, raised at centre, margin entire; mycelia white; reverse light yellow; soluble pigment absent. Colonies on MEA raised, colony margin undulate; mycelia white; reverse light yellow; soluble light yellow pigment. Colonies on OA flat, margin entire; mycelia light gray in the centre, white at the margin; reverse yellow; exudate present as large clear or pale-yellow droplets; soluble dull green pigment. On CREA thin colonies, acid production absent. Sporulation abundantly produced on CYA and CYAS. While, PDA, CZA, DG18, MEA, OA, YES, and CREA exhibited poor sporulation. Sclerotia present on CYA, CZA, and OA, white to dark gray, globose to irregular, 35–450 µm in diam. Conidiophores monoverticillate, sometimes biverticillate. Stipes smooth-walled, 13–120 × 1–4 µm. Phialides borning solitary from the branch, in verticils of 3 to 9, ampulliform, 5–10 × 2–4 µm. Conidia globose to subglobose, 3–4 µm diam., smooth, light brown in all of the agar media. Geographical distribution:—Known only from northern Thailand. According to GlobalFungi, the identical ITS sequences (similarity ≥ 98%) were found in soil samples from the forest in southwestern China (Sun et al. 2021) and in shoot of seagrass [Enhalus acoroides (Linnaeus f.) Royle] in Malaysia (Wainwright et al. 2019). The sites have a tropical climate (MAT avg. 21.6°C, MAP avg. 1418 mm). Additional specimen examined:— THAILAND, Lamphun Province, Mueang Lamphun District, Sribuaban Subdistrict, 18°32′11′′ N, 99°07′30′′ E, isolated from soil in deciduous dipterocarp forest, 10 December 2021, S. Khuna, SDBR-CMU443. Gene sequences ITS (OR186738), BenA (OP6038998), CaM (OP603901), and rpb2 (OP603903). Note:—The colony characteristics of P. thailandense on CYAS and DG18 at 25°C for one week were similar to P. sanjayi. However, P. thailandense can be distinguished from P. sanjayi by its white to dark gray sclerotia, whereas P. sanjayi has cream sclerotia (Table 3) (Ashtekar et al. 2022). aAshtekar et al. (2022), bIn this study, cBarbosa et al. (2020). “NR” = not reported. Species obtained in this study is in bold. In addition, the growth of P. thailandense at 25°C on CYA, CYAS, MEA and YES was slower than P. sanjayi (25–27, 30–39, 16–20 and 29–31 mm, respectively), but was displayed faster growth than P. sanjayi on CZA and OA (14–16 and 14–15 mm, respectively) (Ashtekar et al. 2022). While, P. thailandense on CYA at 30°C showed faster growth than P. sanjayi (10–12 mm) (Ashtekar et al. 2022). Remarkedly, P. sanjayi did not grow on CYA and MEA at 37°C, but P. thailandense did on both media. Based on the micromorphological characteristics, P. thailandense has both monoverticillate and biverticillate conidiophores, in contrast to P. sanjayi which is strictly monoverticillate. Moreover, P. sanjayi differs from P. thailandense by its smaller (2–2.5 µm) and roughened to verruculose conidia (Table 3) (Ashtekar et al. 2022). The multi-gene phylogenetic analysis indicated that isolates of P. thailandense formed a distinct clade within Penicillium section Citrina, and as a sister clade to P. sanjayi. Moreover, a pairwise nucleotide comparison of BenA, CaM, and rpb2 data also indicated that P. thailandense differs from P. sanjayi by having 1.56, 1.64, and 1.52% bp differences (7/448, 9/550, and 15/987 bp), respectively.Published as part of Khuna, Surapong, Kumla, Jaturong, Thitla, Tanapol, Hongsanan, Sinang, Lumyong, Saisamorn & Suwannarach, Nakarin, 2023, Penicillium thailandense (Aspergillaceae, Eurotiales), a new species isolated from soil in northern Thailand, pp. 33-45 in Phytotaxa 612 (1) on pages 38-40, DOI: 10.11646/phytotaxa.612.1.2, http://zenodo.org/record/830854
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
Anteaglonium saxicola N. Suwannarach & J. Kumla 2023, sp. nov.
No full text<i>Anteaglonium saxicola</i> N. Suwannarach & J. Kumla <i>sp. nov.</i> FIGURE 2 <p>MycoBank number: MB850037</p> <p> Etymology:— ‘ <i>saxicola</i> ’ refers to a stone inhabitant.</p> <p>Type:— THAILAND, Lamphun Province, Mueang Lamphun District, Sribuaban Subdistrict, Chiang Mai University Hariphunchai Campus, 18°32′11′′N, 99°07′30′′ E, isolated from a rock of a natural forest, 15 November 2022, N. Suwannarach, SDBR-CMU481, a dried cultured on PDA, culture ex-type SDBR-CMU481, preserved in a metabolically inactive state.</p> <p> Description:—Isolated from rock in terrestrial habitat. Sporulation on PDA after incubation at 25°C for two months. <i>Conidiomata</i> were observed under a stereo microscope, 70–175 µm high, 60–145 µm diam., pycnidial, globose to subglobose, scattered or aggregated into clusters, immersed to erumpent, dark brown to black, ostiolate, covered with white mycelia. <i>Conidiomata wall</i> 8–44 µm wide, composed of thick-walled cells of <i>textura angularis</i>, brown to dark brown. <i>Conidiophores</i> reduced to conidiogenous cells. <i>Conidiogenous cells</i> 8–19 × 2–6 µm, hyaline, smooth, ampulliform to subcylindrical, arising from the inner cavity of the conidioma wall. <i>Conidia</i> 3–4 × 2–3 µm, hyaline, solitary, subglobose to broadly ellipsoid, aseptate, smooth-walled.</p> <p>Culture characteristics:—Colonies on PDA reaching 32–35 mm diam. after 4 weeks at 25°C, flattened, wrinkled, with entire edges; colony from above, greyish-white at the center, greyish red at the margin, produced a soluble red pigment; from below: greyish ruby at the center, dark ruby at the margin. Colonies on MEA reaching 23–26 mm diam. after 4 weeks at 25°C, flattened, with entire edges, slightly concentric ring in the middle; colony from above, greyish-white; from below: brown, with white at the margin, dark grey in the middle, radiated with concentric sectors, producing light brown pigmentation around the colony. Colonies on CMD reaching 32–35 mm diam. after 4 weeks at 25°C, flattened, with entire edges, concentric ring; colony from above, light brown in the center, yellowish-white at the margin; from below: light brown in the middle, with white to cream at the margin, strongly radiated with concentric sectors, producing light brown pigmentation around the colony.</p> <p>Additional specimen examined:— THAILAND, Lamphun Province, Mueang Lamphun District, Sribuaban Subdistrict, Chiang Mai University Hariphunchai Campus, 18°32′11′′N, 99°07′30′′ E, isolated from a rock of a natural forest, 15 November 2022, N. Suwannarach, SDBR-CMU482, a dried cultured on PDA, living culture SDBR-CMU482.</p> <p> Notes:—Morphologically, the new species fitted well with the asexual morph of the genus <i>Anteaglonium</i>. The growth of <i>A. saxicola</i> at 25°C on MEA was slower than <i>A. parvulum</i> and <i>A. thailandicum</i> (13–16 and 23 mm, respectively, after incubation for 7 d) (Jayasiri <i>et al.</i> 2016), while it displayed faster growth than <i>A. rubescens</i> (11–13 mm after incubation for 2 months) (Jaklitsch <i>et al.</i> 2018). Remarkedly, <i>A. saxicola</i> displayed faster growth than <i>A. rubescens</i> on PDA and CMD (10 and 5–6 mm, respectively) after incubation at 25°C for four weeks. Based on the asexual morph characteristics, <i>A. saxicola</i> differs from <i>A. parvulum</i>, <i>A. rubescens</i>, and <i>A. thailandicum</i> by its longer conidiogenous cells (TABLE 2) (Jayasiri <i>et al.</i> 2016, Jaklitsch <i>et al.</i> 2018). Moreover, <i>A. saxicola</i> can be distinguished from <i>A. rubescens</i> by its wider conidiomata wall (Jaklitsch <i>et al.</i> 2018). However, due to the indeterminate morphological characteristics of the asexual morphs of <i>A. abbreviatum</i>, <i>A. brasiliense</i>, <i>A. globosum</i>, <i>A. gordoniae</i>, <i>A. latirostrum</i>, <i>A. lusitanicum</i>, and <i>A. queenslandicum</i>, we cannot compare their microscopic structures (Mugambi & Huhndorf 2009, Almeida <i>et al.</i> 2014, Jayasiri <i>et al.</i> 2019, Tan <i>et al.</i> 2022, Tan & Shivas 2023).</p> <p> Phylogenetically, <i>Anteaglonium saxicola</i> is closely related to <i>A</i>. <i>lusitanicum</i> and <i>A. parvulum</i>; however, the genetic distance of the nrLSU and ITS sequences of <i>A. saxicola</i> to <i>A. lusitanicum</i> was 0.93 and 5.5% (8/867 and 27/491 bp including gaps), respectively. Furthermore, the genetic distance of nrLSU and ITS sequences also indicated that <i>A. saxicola</i> differs from <i>A. parvulum</i> MFLUCC 10-0928, MFLUCC 11-0511, MFLUCC 11-0374, and MFLUCC 11-0380 by having 1.35% and 6.97% (11/817 and 34/488 bp including gaps), 1.24% and 5.92% (10/805 and 29/490 bp including gaps), 1.24% and 6.31% (10/804 and 31/491 bp include gaps), and 1.49% and 6.12% (12/804 and 30/490 bp including gaps), respectively.</p>Published as part of <i>Suwannarach, Nakarin, Kumla, Jaturong, Khuna, Surapong, Thitla, Tanapol, Senwanna, Chanokned, Hongsanan, Sinang & Lumyong, Saisamorn, 2023, Anteaglonium saxicola (Anteagloniaceae, Pleosporales), a new species isolated from rocks in northern Thailand, pp. 75-84 in Phytotaxa 629 (1)</i> on pages 79-81, DOI: 10.11646/phytotaxa.629.1.6, <a href="http://zenodo.org/record/10254797">http://zenodo.org/record/10254797</a>
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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