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Figure 13 in The earthworm fauna of Palawan, Philippines with description of nineteen new pheretimoid species (Clitellata: Megascolecidae)
No full textFigure 13. Polypheretima puertoprincesaensis sp. nov. (a) External ventral view. (b) Internal dorsal view. (c) Spermathecae. Abbreviations: fp, female pores; gm, genital markings; mp, male pores; p, prostate gland; s, spermathecae; sp, spermathecal pores; sv, seminal vesicles.Published as part of Aspe, Nonillon M., Manasan, Rafael Ethan, Manlavi, Albert B., Patiluna, Ma. Lotus E., Sebido, Maria Asela B., Obusan, Marie Christine M., Simbahan, Jessica F. & James, Samuel W., 2021, The earthworm fauna of Palawan, Philippines with description of nineteen new pheretimoid species (Clitellata: Megascolecidae), pp. 733-797 in Journal of Natural History 55 (11-12) on page 769, DOI: 10.1080/00222933.2021.1923849, http://zenodo.org/record/546379
Pheretima Kinberg 1867
No full textGenus Pheretima Kinberg, 1867 Type species Pheretima montana, 1867 Generic diagnosis Body circular in cross section, with numerous setae regularly arranged equatorially around each segment; setae absent on first and last segments. Male pores paired within copulatory bursae opening on segment xviii; one or more pairs of spermathecal pores in intersegmental furrows between 4/5 and 8/9. Clitellum annular, covering three segments (xiv–xvi). Single midventral female pore on xiv. Genital markings usually absent. Internally, oesophageal gizzard usually originating in viii; a pair of caeca originating in xxvii, extending forward. Ovaries and funnels free in xiii. Male sexual system holandric, with paired testes and funnels enclosed in sacs in x and xi, and seminal vesicles in xi and xii. Spermathecae one pair, multiple pairs, sometimes single and located midventrally, or sometimes lacking. Nephridia present on spermathecal duct(s). One pair of prostate glands, racemose. Copulatory bursae present; secretory diverticula lacking on coelomic surface of copulatory bursae.Published as part of Aspe, Nonillon M., Manasan, Rafael Ethan, Manlavi, Albert B., Patiluna, Ma. Lotus E., Sebido, Maria Asela B., Obusan, Marie Christine M., Simbahan, Jessica F. & James, Samuel W., 2021, The earthworm fauna of Palawan, Philippines with description of nineteen new pheretimoid species (Clitellata: Megascolecidae), pp. 733-797 in Journal of Natural History 55 (11 - 12) on pages 738-739, DOI: 10.1080/00222933.2021.1923849, http://zenodo.org/record/546379
Polypheretima Michaelsen 1934
No full textGenus Polypheretima Michaelsen, 1934 Type species Perichaeta stelleri Michaelsen, 1892. Generic diagnosis Body cylindrical; setal arrangement perichaetine; annular clitellum covering segments xiv–xvi; pair of male pores in xviii on circular porophores that may be within copulatory bursae; ventral genital markings present or absent; oesophageal gizzard in viii; intestine begins in xv or xvi; nephridia on spermathecal ducts lacking; caeca lacking; male sexual system usually holandric, with testes and funnels enclosed in paired sacs in x and xi; seminal vesicles in xi and xii; spermathecal pores small, spermathecal diverticula simple and usually ectal in origin; prostates racemose; copulatory bursae may or may not be present; ovaries free in xiii; oviducts lead to single or closely paired opening (Easton 1979).Published as part of Aspe, Nonillon M., Manasan, Rafael Ethan, Manlavi, Albert B., Patiluna, Ma. Lotus E., Sebido, Maria Asela B., Obusan, Marie Christine M., Simbahan, Jessica F. & James, Samuel W., 2021, The earthworm fauna of Palawan, Philippines with description of nineteen new pheretimoid species (Clitellata: Megascolecidae), pp. 733-797 in Journal of Natural History 55 (11 - 12) on page 759, DOI: 10.1080/00222933.2021.1923849, http://zenodo.org/record/546379
Amynthas Kinberg 1867
No full textGenus Amynthas Kinberg 1867 Type species Amynthas aeruginosus, Kinberg 1867. Generic diagnosis Body circular in cross section, with numerous setae regularly arranged equatorially around each segment; setae absent on first and last segments. Male pores paired and superficial, opening on xviii. Spermathecal pores small or large, usually paired (bithecate) but occasionally numerous (polythecate) or single (monothecate). Spermathecal pores positioned either intersegmentally or intrasegmentally between 4/5 and 8/9. Clitellum annular, covering three segments from xiv to xvi. Single female pore midventrally on xiv. Genital markings present or absent. If genital markings present, variable in number and forming complex pattern on segments near male pores. Oesophageal gizzard usually originating in viii; oesophageal bursae lacking; pair of caeca originating in xxvii, extending forward. Ovaries and funnels free in xiii. Male sexual system holandric, metandric or proandric. Spermathecae a single pair or multiple pairs, sometimes single and located midventrally, or sometimes lacking. Nephridia on spermathecal duct lacking. One pair of prostate glands, racemose. Copulatory bursae lacking.Published as part of Aspe, Nonillon M., Manasan, Rafael Ethan, Manlavi, Albert B., Patiluna, Ma. Lotus E., Sebido, Maria Asela B., Obusan, Marie Christine M., Simbahan, Jessica F. & James, Samuel W., 2021, The earthworm fauna of Palawan, Philippines with description of nineteen new pheretimoid species (Clitellata: Megascolecidae), pp. 733-797 in Journal of Natural History 55 (11 - 12) on page 777, DOI: 10.1080/00222933.2021.1923849, http://zenodo.org/record/546379
Microbial ecology of a mercury -rich hot spring
No full textHorizontal gene transfer (HGT) has been observed to occur between archaea and bacteria. The evolution of the mer operon which encodes for mercury resistance in microorganisms has been influenced by HGT. This study focuses on the microbial ecology of Coso Hot Springs (CHS) which contains high concentrations of mercuric sulfide or cinnabar. Specifically, this study was conducted to (a) identify archaeal and bacterial members of the CHS community, (b) determine whether HGT of merA genes occurred between the archaea and bacteria living in CHS and (c) determine the merA gene profile of microorganisms from CHS. Fluorescence in situ hybridization (FISH) analysis showed that the archaea made up 70% and the bacteria constituted 16% of the CHS microbial community. 16S rDNA sequencing identified the archaea in the pool to be Sulfolobus-like, Metallosphaera-like and Stygiolobus-like. Cultured archaea from CHS belonged to the genera Sulfolobus. The bacterial isolate belonged to a new species of Alicyclobacillus called Alicyclobacillus vulcanalis. A. vulcanalis has a temperature optima of 55°C, pH optima of 4.0, a %G+C content of 62 and possesses ω-cyclohexyl fatty acids as the major lipid component. Sequencing of the merA gene of A. vulcanalis showed that merA shared the closest identity to the merA genes of other Bacillus spp. and Gram+ bacteria. Sequence comparison of the merA genes of the archaeal and bacterial isolates from CHS revealed that HGT of merA did not occur between the two domains at CHS. A merA gene profile of uncultured archaea at CHS showed that there was very little diversity in the merA genes from CHS. This result could mean the predominance of a particular archaeal species selected for by the high mercury concentration and the yearly cycle of dehydration and rehydration that CHS undergoes. The results of this study will contribute to our understanding of the microorganisms that participate in global mercury cycling and provide baseline information that can aid in the formulation of strategies for bioremediation and mercury recovery
Polypheretima everetti Beddard and Fedarb 1895
No full text<i>Polypheretima everetti</i> Beddard and Fedarb, 1895 <p> <i>Diagnosis</i></p> <p>Large worm with adult body length up to 300 mm, diameter up to 12 mm; with up to 260 segments. Live worm reddish purple. Spermathecal batteries in 5/6/7. Setae numerous (up to 130 per segment). Male openings 0.25 circumference apart ventrally, 16 setae between male pores. Genital markings paired, presetal in line with male pores in some or all of xix–xxi, xxii, xxiii. Each spermathecal battery in vi and vii usually with 6–12 spermathecae. Male system holandric.</p> <p> <i>Remarks</i></p> <p> <i>Polypheretima everetti</i> belongs to the <i>Po. elongata</i> Perrier, 1872 species group of Easton (1979), characterised by having a pair of genital markings on xix, successive segments in line with the male pores, paired batteries of up to 28 spermathecae in vi and/or vii, and shallow copulatory bursae with no stalked glands. The type locality of <i>Po. everetti</i> is Balabac Island, Palawan, Philippines. This species is also distributed in Sulawesi and Lombok, Indonesia, and in Borneo including Mt Kinabalu (Blakemore et al. 2007).</p>Published as part of <i>Aspe, Nonillon M., Manasan, Rafael Ethan, Manlavi, Albert B., Patiluna, Ma. Lotus E., Sebido, Maria Asela B., Obusan, Marie Christine M., Simbahan, Jessica F. & James, Samuel W., 2021, The earthworm fauna of Palawan, Philippines with description of nineteen new pheretimoid species (Clitellata: Megascolecidae), pp. 733-797 in Journal of Natural History 55 (11 - 12)</i> on page 759, DOI: 10.1080/00222933.2021.1923849, <a href="http://zenodo.org/record/5463798">http://zenodo.org/record/5463798</a>
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
Cloning and expression of a thermophilic lipase gene from geobacillus sp., M5 and characterization of the recombinant enzyme
No full textVariations 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
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