<em>Phyllodes diversipalpus</em> resurrected from taxonomic extinction (Lepidoptera: Erebidae)

Alberto Zilli

doi:10.4081/fe.2020.466

Phyllodes diversipalpus resurrected from taxonomic extinction (Lepidoptera: Erebidae)

Fragmenta Entomologica ◽

10.4081/fe.2020.466 ◽

2020 ◽

Vol 52 (2) ◽

pp. 365-367

Author(s):

Alberto Zilli

Keyword(s):

New Guinea ◽

Morphological Evidence

Morphological evidence supporting the validity of Phyllodes diversipalpus sp. rev. from New Guinea is provided. This species is only superficially similar to P. eyndhovii and P. staudingeri and, having been associated with either of the two, was eventually wrongly subsumed under the latter.

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Taxonomy and morphology of Thalictrum (Ranunculaceae) in New Guinea

Kew Bulletin ◽

10.1007/s12225-021-09972-1 ◽

2021 ◽

Author(s):

Renata Borosova ◽

Timothy M. A. Utteridge ◽

André Schuiteman

Keyword(s):

New Species ◽

New Guinea ◽

Morphological Evidence ◽

Distribution Maps ◽

New Synonym ◽

New Varieties ◽

Conservation Assessments ◽

A New Species

SummaryThe genus Thalictrum L. in New Guinea is revised based on morphological evidence. Full descriptions of the genus and the four taxa recognised are given. Two species are recognised: Thalictrum papuanum, widespread across New Guinea, and a new species described here; T. umbraticola, endemic to west New Guinea. Two new varieties are described: Thalictrum papuanum var. acutisegmentum and T. papuanum var. laticarpellum. One new synonym of Thalictrum papuanum var. papuanum is established: T. papuanum var. oranjense. Keys to the taxa and distribution maps, as well as preliminary conservation assessments, are provided.

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Taxonomic revision of Australasian diving beetles in the genus Leiodytes Guignot, 1936 (Coleoptera: Dytiscidae, Bidessini)

Zootaxa ◽

10.11646/zootaxa.4990.1.2 ◽

2021 ◽

Vol 4990 (1) ◽

pp. 23-44

Author(s):

LARS HENDRICH ◽

LIANG-JONG WANG ◽

MICHAEL BALKE

Keyword(s):

Taxonomic Revision ◽

New Guinea ◽

Color Pattern ◽

Morphological Evidence ◽

Molecular Evidence ◽

Diving Beetles ◽

Intermittent Rivers ◽

Genital Structure ◽

Subjective Synonym ◽

Male Genital

Bidessus migrator Sharp, 1882, so far assigned to Clypeodytes Régimbart, 1894, and widely distributed in Australia and New Guinea, is re-described. Based on morphological and molecular evidence, it is here transferred to Leiodytes Guignot, 1936. Bidessus loriae Régimbart, 1892 is found to be a junior subjective synonym of L. migrator. We describe the following new species: Leiodytes surianiae sp. nov. (eastern New Guinea, northeast coast of Queensland), and Leiodytes wattsi sp. nov. (southern New Guinea and Darwin area to northern Queensland). We delineate the species using characters such as male genital structure and beetle size, shape and color pattern. Mitochondrial Cox1 data for 27 individuals, representing all three Australasian species, were generated and revealed clusters congruent with the morphological evidence. In Australia Leiodytes only occurs in the tropical and subtropical northern part of the continent. None of the species is endemic to Australia. The species are mainly lentic, occurring in seasonal swamps, flooded meadows and pools of intermittent rivers and temporary creeks.

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Scanning and Transmission Electron Microscopy of Endomentrium in Women Wearing TCu-380-A IUD 's

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100080754 ◽

1977 ◽

Vol 35 ◽

pp. 666-667

Author(s):

A. Gonzalez Angulo ◽

R. Berlioz ◽

R. Aznar

Keyword(s):

Copper Wire ◽

Uterine Cavity ◽

Morphological Evidence ◽

Secretory Phase ◽

Ultrastructural Studies ◽

Proliferative Phase ◽

Contraceptive Devices ◽

Transmission Electron ◽

Intrauterine Contraceptive ◽

Myelin Figure

Recent ultrastructural studies on endometrial tissues from women wearing copper, wire intrauterine devices have disclosed morphological evidence of impaired glycogen degradation and secretion resulting in interference with the viability of blastocysts. Reduced microapocrine secretion observed with the scanning electron microscope supports this (1). In addition, organelle modifications have been observed in the epithelial cells of these women. The changes are seen in biopsies taken in the proliferative phase of the cycle and consist of mitochondrial vacuolation and myelin figure formation. These modifications disappear in the secretory phase and therefore have been regarded as reversible (2).The aim of the present studies was to investigate surface epithelial changes as well as organelle modifications in relation to the site of contact with an IUD that releases greater amounts of copper. Endometrial tissue was obtained from the uterine cavity of four young women wearing TCu-380-A intrauterine contraceptive devices for 4-6 weeks.

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Ultrastructural Study of a differentiating human colon carcinoma cell line

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100158583 ◽

1990 ◽

Vol 48 (3) ◽

pp. 208-209

Author(s):

Sylvie Polak-Charcon ◽

Mehrdad Hekmati ◽

Yehuda Ben Shaul

Keyword(s):

Cell Line ◽

Morphological Changes ◽

Secretory Granules ◽

Human Colon ◽

Cell Types ◽

Culture Conditions ◽

Morphological Evidence ◽

Human Colon Carcinoma Cell ◽

Colon Cell

The epithelium of normal human colon mucosa “in vivo” exhibits a gradual pattern of differentiation as undifferentiated stem cells from the base of the crypt of “lieberkuhn” rapidly divide, differentiate and migrate toward the free surface. The major differentiated cell type of the intestine observed are: absorptive cells displaying brush border, goblet cells containing mucous granules, Paneth and endocrine cells containing dense secretory granules. These different cell types are also found in the intestine of the 13-14 week old embryo.We present here morphological evidence showing that HT29, an adenocarcinoma of the human colon cell line, can differentiate into various cell types by changing the growth and culture conditions and mimic morphological changes found during development of the intestine in the human embryo.HT29 cells grown in tissue-culture dishes in DMEM and 10% FCS form at late confluence a multilayer of morphologically undifferentiated cell culture covered with irregular microvilli, and devoid of tight junctions (Figs 1-3).

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