Rediscovery of the poorly known Scorzonera argyria and its relationships in Turkey

Biologia ◽  
2008 ◽  
Vol 63 (6) ◽  
Author(s):  
Muhittin Dinç ◽  
Ahmet Duran ◽  
Esra Martin
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Scientific Community ◽  
Additional Data ◽  
Conservation Status ◽  
Distinct Species ◽  
Turkish Flora ◽  
Vegetative Characters ◽  
Associated Species ◽  
Scanning Electron

AbstractScorzonera argyria Boiss. has been a poorly known endemic species classified within DD category of IUCN. It has not been collected since its introduction to the scientific community in 1843. Scorzonera argyria in the Turkish flora might be considered to be a synonymy of S. eriophora. Based on the specimens collected from the type locality environs, Scorzonera argyria’s detailed morphological, karyological and palynological descriptions are presented. Its two allies, S. eriophora DC. and S. pisidica Hub.-Mor., are morphologically and palynologically studied and compared to Scorzonera argyria. After the comparison conducted in the present study, S. argyria is clearly determined to be a distinct species. Consequently, in addition to some vegetative characters S. argyrea basically differs from the allied species by its typical achenes. S. argyrea and the two allied species are generally palynologically similar, but minor differences exist between them on account of their spine shapes and micro-ornamentations observed under scanning electron microscopy. The habitat S. argyrea and its typically associated species are briefly discussed. Additional data on the ecology and the conservation status of S. argyria are also given.

scholarly journals Pollen morphology of the genus Eremanthus Less. (Vernonieae, Asteraceae)

2012 ◽  
Vol 26 (1) ◽  
pp. 46-57 ◽  
Author(s):  
BenoÎt Loeuille ◽  
Raquel Maria Batista Souza-Souza ◽  
Vanessa Holanda Righetti Abreu ◽  
Cláudia Barbieri Ferreira Mendonça ◽  
Vania Gonçalves-Esteves
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Pollen Morphology ◽  
Additional Data ◽  
Phylogenetic Reconstruction ◽  
Pollen Grains ◽  
Prolate Spheroidal ◽  
Oblate Spheroidal ◽  
Quantitative Characters ◽  
Scanning Electron

In order to evaluate the significance of the pollen morphology for generic and infrageneric taxonomy of the genus Eremanthus (Vernonieae, Asteraceae), and to provide additional data for its phylogenetic reconstruction, the pollen of 20 of the 23 species of the genus was examined using light and scanning electron microscopy. Acetolysed pollen grains were measured, described, and illustrated using light microscopy, while non-acetolysed pollen grains were analyzed using scanning electron microscopy. Pollen grains of these species are isopolar, oblate-spheroidal in most of the species, more rarely prolate spheroidal or suboblate, subtriangular amb, tricolporate and subechinolophate. The variation among quantitative characters does not correlate with the macromorphological subdivision of the genus or with the generic or specific limits.

Prangos aricakensis (Apiaceae), a new species from eastern Turkey

Phytotaxa ◽  
2019 ◽  
Vol 401 (1) ◽  
pp. 55
Author(s):  
LÜTFİ BEHÇET ◽  
YAKUP YAPAR ◽  
ŞÜKRÜ OLGUN
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Conservation Status ◽  
Eastern Anatolia ◽  
Fruit Characteristics ◽  
Diagnostic Characters ◽  
A New Species ◽  
Scanning Electron ◽  
Single Locality

Prangos aricakensis is described and illustrated as a new species from eastern Anatolia (Turkey), where it is known from a single locality in Arıcak (Elazığ) district. Its diagnostic characters are discussed and taxonomic comments are presented. Prangos aricakensis is similar to P. turcica, P. hulusii, P. ilanae and P. trifida, but it differs in hair, leaf, bract, bracteole and fruit characteristics. Fruit and pollen characteristics were investigated using ligth (LM) and scanning electron microscopy (SEM). Data on ecology and IUCN conservation status are also shown.

AFM Integrated with SEM and FIB: A Synergistic Union

2013 ◽  
Vol 21 (6) ◽  
pp. 26-31
Author(s):  
Aaron Lewis ◽  
A. Komissar ◽  
A. Ignatov ◽  
Oleg Fedoroyov ◽  
E. Maayan ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Atomic Force Microscopy ◽  
Research And Development ◽  
Scientific Community ◽  
Ion Beam ◽  
Basic Research ◽  
Force Microscopy ◽  
Atomic Force ◽  
Scanning Electron

Scanning electron microscopy (SEM) and ion beam milling techniques are mature nanoscale measurement technologies, whereas atomic force microscopy (AFM) is a developing technology generating intense interest in the scientific community for basic research and development. These techniques have generally existed in separate worlds. This article discusses a capability that marries these technologies through an instrument recently introduced by Nanonics, the 3TB4000.

scholarly journals SEM study of planktonic chlorophytes from the aquatic habitat of the Indian Sundarbans and their conservation status

2019 ◽  
Vol 11 (13) ◽  
pp. 14722-14744
Author(s):  
Gour Gopal Satpati ◽  
Ruma Pal
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Conservation Status ◽  
Present Communication ◽  
Line Drawings ◽  
Taxonomic Description ◽  
Modern Technique ◽  
Sem Study ◽  
Rare And Endangered ◽  
Scanning Electron

Scanning electron microscopy (SEM) is the most modern technique for plankton research.  The present paper deals with the taxonomy and morphology of some rare and endangered planktonic chlorophytes in relation to scanning electron microscopy.  Water samples from the distinct water body of the Sundarbans have been concentrated and examined by scanning electron microscopy.  A total of 45 species, of which 17 species of Scenedesmaceae, 10 species each of Hydrodictyaceae and Desmidiaceae, five species of Chlorococcaceae, two species of Selenastraceae and only one species of Chlorellaceae were recorded from the study site.  Some species were recorded as new and rare from the study area.  About 18 species including nine extremely rare, seven occasional, six frequent, four sporadic and one abundant was recorded in the present study.  A detailed taxonomic description with line drawings is also included in the present communication.

Ranunculus solhanensis (Ranunculaceae), a new species from eastern Turkey

Phytotaxa ◽  
2021 ◽  
Vol 497 (2) ◽  
pp. 157-164
Author(s):  
ALİ SİNAN ◽  
LÜTFİ BEHÇET ◽  
YAKUP YAPAR
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Light Microscopy ◽  
Conservation Status ◽  
Eastern Anatolia ◽  
Ecological Data ◽  
East Anatolia ◽  
A New Species ◽  
Scanning Electron

Ranunculus solhanensis sp. nov. (Ranunculaceae) is described from Bingöl province (Eastern Anatolia) in Turkey. It is related to R. bulbilliferus and R. munzurensis also distributed in east Anatolia. The new species is easily distinguished from its relatives by morphological features of stem, corolla, stamen and achenes. Achenes and pollen characteristics have been assessed by light microscopy and scanning electron microscopy. Distribution, ecological data and IUCN conservation status of the new species are also provided.

scholarly journals Mallomonas Camerunensis Sp. Nov. (Chrysophyceae, Stramenopiles) From A Shallow Puddle In The Guineo-Congolian Rainforest (Cameroon)

2015 ◽  
Vol 60 (2) ◽  
pp. 119-126 ◽  
Author(s):  
Jolanta Piątek
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Light Microscopy ◽  
Distinct Species ◽  
Morphological Characters ◽  
Scanning Electron

AbstractA new silica-scaled chrysophyte species, Mallomonas camerunensis J. Piątek, is described and illustrated from a shallow puddle in the Guineo-Congolian rainforest in Cameroon. This species belongs to section Papillosae and series Papillosa. It is similar to other Mallomonas species placed in Papillosa, such as M. binocularis Siver, M. calceolus D. E. Bradley, M. delanciana Siver, M. kalinae Řezáčová, M. papillosa K. Harris & D. E. Bradley, M. paxillata (D. E. Bradley) L. Ş. Péterfi & Momeu, M. rasilis Dürrschm. and M. tropica Dürrschm. & Croome, but differs from them in several morphological characters warranting recognition as a distinct species. The dome of M. camerunensis is clearly delimited and ornamented with papillae and ribs. The scales lack an anterior submarginal rib, while the posterior rim and V-rib are smooth and unornamented. The shield is thickly ornamented with papillae (18–22 papillae per scale width). The species is described and illustrated using light microscopy and scanning electron microscopy.

Lactuca anatolica (Asteraceae: Lactucinae), a new species from eastern Anatolia (Turkey)

Phytotaxa ◽  
2020 ◽  
Vol 455 (4) ◽  
pp. 287-294
Author(s):  
LÜTFİ BEHÇET ◽  
YAKUP YAPAR
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Related Species ◽  
Conservation Status ◽  
Eastern Anatolia ◽  
Distribution Map ◽  
Diagnostic Characters ◽  
A New Species ◽  
Scanning Electron

Lactuca anatolica is described as a new species from the province of Bingöl, and is known from only one locality. Its diagnostic characters are discussed, and taxonomic comments are presented. Lactuca anatolica is similar to L. leucoclada, L. orientalis subsp. nuristanica and L. orientalis subsp. orientalis but differs from these species in achenes, indumentum and leaves. Its achenes were investigated using scanning electron microscopy (SEM). Data on ecology and IUCN conservation status of the new species are also presented. A distribution map of the new and related species is provided.

Preparation of Cellulose Nanocrystal Aerogel from Wastepaper through Freeze-Drying Technique

2015 ◽  
Vol 1125 ◽  
pp. 296-300 ◽  
Author(s):  
Wan Hazman Danial ◽  
Zaiton Abdul Majid ◽  
Mohd Nazlan Mohd Muhid ◽  
Mohd Bakri Bakar ◽  
Zainab Ramli ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Scientific Community ◽  
Freeze Drying ◽  
Morphological Analysis ◽  
Transmission Electron ◽  
Wide Range ◽  
Cellulose Nanomaterials ◽  
Scanning Electron

Cellulose nanomaterials processing for aerogel preparation has received considerable attention among the scientific community due to its fascinating properties. In this work, we report on the preparation of cellulose nanocrystals (CNCs) aerogel from wastepaper using a freeze-drying technique. Structural analysis of the cellulosic particles extracted was investigated by Fourier Transform Infrared Spectroscopy (FTIR). Morphological analysis of the extracted cellulose and CNCs were carried out by Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) respectively. We achieved density of aerogel down to 0.012 g/cm3 which is comparable with typical values of cellulosic aerogels. The preparation of the CNCs aerogel might offers a wide range of aerogel applications through an environmentally friendly conversion of wastepaper material.

scholarly journals Mallomonas cronbergiae (Chrysophyceae, Stramenopiles), A New Species from the Guineo-Congolian Rainforest in Cameroon

2016 ◽  
Vol 61 (2) ◽  
pp. 199-204 ◽  
Author(s):  
Jolanta Piątek ◽  
Magdalena Łukaszek
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Distinct Species ◽  
Morphological Characters ◽  
Characteristic 3 ◽  
Stream Pool ◽  
Shallow Stream ◽  
A New Species ◽  
Scanning Electron

AbstractA new species of Mallomonas Perty, M. cronbergiae J. Piątek sp. nov., was found in a tropical shallow stream pool in the Guineo-Congolian rainforest in Cameroon. It belongs to the series Ouradiotae and is similar to the three other Mallomonas taxa from this series, namely M. ouradion Harris & Bradley, M. parvula Dürrschmidt and M. parvula var. nichollsii Wujek & Bland, but differs in some morphological characters that clearly differentiate M. cronbergiae as a distinct species. The new species has a different size of scales, characteristic 3–7 pores at the posterior rim, an anterior flange ornamented with papillae, and a shield thickly ornamented with papillae (14–16 per scale width). The species is described and illustrated with the use of light and scanning electron microscopy.

scholarly journals Campomanesia adamantium and Campomanesia pubesncens are distinct species? Use of palynology and molecular markers in taxonomy

Rodriguésia ◽  
2020 ◽  
Vol 71 ◽  
Author(s):  
Érica Virgínia Estêfane de Jesus Amaral ◽  
Juliana de Fátima Sales ◽  
Edésio Fialho dos Reis ◽  
Christiano Peres Coelho ◽  
Evaristo Mauro de Castro ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Molecular Markers ◽  
Plant Breeding ◽  
Plant Material ◽  
Morphological Variability ◽  
Distinct Species ◽  
Plant Taxonomy ◽  
Taxonomic Description ◽  
Scanning Electron

Abstract The species Campomanesia adamantium and C. pubescens present a great morphological variability, with the existence of morphotypes and the indication of a possible hybridization process occurring between them. Thus, the aim of this study was to characterize the Campomanesia adamantium species and morphotypes of species Campomanesia pubescens through palynological reviews and with the use of molecular markers to assist the taxonomic description of the species. The plant material was collected in the experimental field of Federal University of Jataí, in bloom of 2014, and analyzes were performed in the Morphology Laboratory of Plant Taxonomy and in the Laboratory of Genetics and Plant Breeding belonging to the same institution. Analysis of scanning electron microscopy was performed at the Federal University of Lavras. Important information was found that reinforce the possibility of cross between Campomanesia adamantium and Campomanesia pubescens, generating morphotypes intermediaries, indicating a possible hybridisation process. It can be concluded that Campomanesia adamantium is farthest from the morphotype 2 from Campomanesia pubescens, and morphotypes 1 and 3 are intermediate between them, possibly being hybrids.

Sign in / Sign up

Export Citation Format

Share Document