scholarly journals First record of Aceria kuko in Slovakia

2020 ◽  
Vol 56 (No. 2) ◽  
pp. 135-139
Author(s):  
Martin Suvák
Keyword(s):  
Electron Microscope ◽  
Host Plants ◽  
First Record ◽  
Botanical Garden ◽  
Mite Species ◽  
The Internet ◽  
Lycium Chinense ◽  
Gall Mite ◽  
Lycium Chinense Miller ◽  
Scanning Electron

A sample of goji leaves with blisters was brought from a private garden in Vyšná Kamenica to the Botanical Garden of Pavol Jozef Šafárik University in Košice to identify the problem. The respective plant (Lycium chinense Miller cv. Big Berry) was bought through the internet and these distortions occurred after some time during cultivation. The mites found on the deformed leaves were examined using a light microscope and a scanning electron microscope (SEM) as well. The identity of Aceria kuko (Kishida, 1927), the goji berry gall mite, was confirmed. Other available possible host plants in Košice and the surroundings were checked with no positive findings. However, typical foliar galls on goji plants have been indirectly observed (through the television) in Malinovo near Bratislava. Due to the risk from this mite species not only to the goji (Lycium sp.) but also to the pepper (Capsicum annuum Linnaeus) and some other Solanaceae plants, the respective authorities of the Slovak phytosanitary service were informed.

scholarly journals Morphological Identification of Bolbosoma turbinella (Acanthocephala) in Sei Whale (Balaenoptera borealis) from Straits of Malacca, Malaysia

2021 ◽  
Vol 13 (1) ◽  
pp. 83
Author(s):  
Mohd Ihwan Zakariah ◽  
Mohd Tamimi Ali Ahmad ◽  
Mohd Shafiq Razak ◽  
Norainy Mohd Husin ◽  
Wahidah Wahab ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Genomic Dna ◽  
Marine Mammals ◽  
East Coast ◽  
First Record ◽  
Peninsular Malaysia ◽  
Morphological Identification ◽  
Straits Of Malacca ◽  
Specific Species ◽  
Scanning Electron

HighlightIdentification of Morphological characteristic of the Bolbosoma sp.Genetic confirmation of the specific species of Bolbosoma turbinella.The first report in Straits of Malacca.Health status of Sei Whale (Balaenoptera borealis).AbstractThe study of ectoparasite and endoparasites of marine mammals are not habitually done because some species are endangered and protected by law. A stranded Sei Whale, Balaenoptera borealis (Anderson, 1878) from the East Coast of Peninsular Malaysia was examined for endoparasites. The objective of this study is to identify the species of acanthocephalan in the intestine of the Sei Whale found in the straits of Malacca. A total of ten parasite specimens were collected from the fresh intestine, and were fixed in 10% buffered formalin for further histological procedures. The morphological features of this parasite viewed under Scanning Electron Microscope (SEM) are referred to as the proboscis armature and variations in the spination of the area between the anterior and posterior cephalic bulb. Genomic DNA extracted by using QIAGEN DNeasy Blood & Tissue Kit DNA and sequenced with First Base Sequencer showed that this species belonged to Bolbosoma turbinella. This was the first record of a sei whale carrying the endoparasites Bolbosoma turbinella, in Malaysian waters.

scholarly journals Goji berry gall mite Aceria kuko occurrence in the Czech Republic – short communication

2017 ◽  
Vol 54 (No. 1) ◽  
pp. 39-42 ◽  
Author(s):  
Hrudová Eva ◽  
Šafránková Ivana
Keyword(s):  
European Union ◽  
Czech Republic ◽  
Short Communication ◽  
Lycium Chinense ◽  
The European Union ◽  
Asian Origin ◽  
The Czech Republic ◽  
Goji Berry ◽  
Gall Mite ◽  
Lycium Chinense Miller

Damage caused by the Goji berry gall mite, Aceria kuko (Kishida, 1927) was observed on the leaves of Lycium chinense Miller (Solanaceae) in Brno in August 2016 and on L. barbarum L. in Popovice in September 2016. Aceria kuko is a pest of Asian origin which is common in China and occurs only sporadically on Goji berry plants in the European Union. This is the first observation of the Goji berry gall mite occurrence in the Czech Republic.

scholarly journals First record of Pinnularia subinterrupta Krammer & Schroeter in Poland – a rare species in Europe

2017 ◽  
Vol 45 (1) ◽  
pp. 17-21 ◽  
Author(s):  
Teresa Noga ◽  
Mateusz Rybak
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Rare Species ◽  
Morphological Characteristics ◽  
First Record ◽  
Raised Bog ◽  
Southern Poland ◽  
Water Ph ◽  
Scanning Electron

AbstractThe first record of occurrence of Pinnularia subinterrupta Krammer & Schroeter in Poland with the species ecological and morphological characteristics (including scanning electron microscope details) are provided. The species was observed in the material collected from the Jamów and Tokarka streams, flowing from the areas of raised bog in the Orava Region of southern Poland. Pinnularia subinterrupta occurred in low abundance, among mosses, and always at low water pH (3.3-4.8), conductivity (28-63 mS cm-1) and temperature (3.9-9.6°C).

scholarly journals The first record of a rare species of myxomycetes Perichaena heterospinispora in Asia

2020 ◽  
Vol 24 ◽  
pp. 00094
Author(s):  
Anastasia Vlasenko ◽  
Dondov Budsuren ◽  
Enkhtuya Ochirbat ◽  
Javkhlan Samiya
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Rare Species ◽  
First Record ◽  
First Time ◽  
Scanning Electron

In Mongolia, for the first time in Asia, a rare species of myxomycetes, Perichaena heterospinispora, has been recorded. Studies were conducted in the vicinity of Ulaanbaatar, in the steppes near Chinggis Khaan Airport. The article provides a description of this species, photographs of sporocarps, photographs of spores on a scanning electron microscope. A description and photographs of capillitial threads are presented for the first time. This rare species differs from all known species of the genus in its unique ornamentation of spores.

scholarly journals Gymnosperms from the Lower Cretaceous Crato Formation (Brazil). I. Araucariaceae and Lindleycladus (incertae sedis)

Fossil Record ◽  
2004 ◽  
Vol 7 (1) ◽  
pp. 155-174 ◽  
Author(s):  
L. Kunzmann ◽  
B. A. R. Mohr ◽  
M. E. C. Bernardes-de-Oliveira
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
First Record ◽  
Leaf Epidermis ◽  
Female Cone ◽  
Anatomical Features ◽  
Seasonally Dry ◽  
Incertae Sedis ◽  
Excellent Preservation ◽  
Scanning Electron

Fossil conifers from the Early Cretaceous, most likely late Aptian, Crato Formation were studied. The excellent preservation of several of those fossils allowed detailed investigations of the leaf epidermis by light microscope (LM) and by scanning electron microscope (SEM). Members of two conifer taxa were recognized: The Araucariaceae are represented by a female cone of cf. <i>Araucaria</i> spec. A juvenile cone (<i>Araucariostrobus spec.</i>) and sterile foliage shoots of <i>Brachyphyllum obesum might</i> be attributed to the Araucariaceae as well. The morpho-genus <i>Lindleycladus</i> (incertae sedis) is represented by foliage shoots. The occurrence of <i>Lindleycladus</i> is the first record of this extinct morpho-genus in the Southern Hemisphere. Anatomical features of these conifers are interpreted as adaptations to a warm seasonally dry climate. Taphonomic problems concerning these conifer remains are discussed. <br><br> Fossile Koniferen aus der unterkretazischen, höchstwahrscheinlich oberaptischen Crato Formation wurden untersucht. Die ausgezeichnete Erhaltung einiger Exemplare gestattete die Analyse von Blattepidermen mittels Licht- und Rasterelektronen-mikroskop. Vertreter zweier Koniferentaxa wurden nachgewiesen: Araucariaceae kommen mit einem weiblichen Zapfen von cf. <i>Araucaria spec</i>. vor. Ein juveniler Zapfen (<i>Araucariostrobus spec</i>.) und sterile Zweige mit der Beblätterung der Morpho-Species <i>Brachyphyllum obesum</i> werden unter Vorbehalt ebenfalls zu den Araucariaceae gestellt. Vegetative Organe der Morpho-Gattung <i>Lindleycladus</i> (incertae sedis) sind ebenfalls erhalten. Das Vorkommen von <i>Lindleycladus</i> ist ein erster Nachweis dieser fossilen Morpho-Gattung in der Südhemisphäre. Anatomische Merkmale dieser Koniferen werden als Anpassungen an ein warmes, saisonal trockenes Klima gedeutet. Im Zusammenhang mit den Koniferenresten werden taphonomische Probleme diskutiert. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.20040070109" target="_blank">10.1002/mmng.20040070109</a>

A new morphotype of chrysophycean stomatocyst from the pond of Peter the Great Botanical Garden (Saint Petersburg)

2015 ◽  
Vol 49 ◽  
pp. 47-51
Author(s):  
T. V. Safronova
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Botanical Garden ◽  
Classification Schemes ◽  
Saint Petersburg ◽  
Historical Essay ◽  
Peter The Great ◽  
Scanning Electron

The paper deals with the problem of identifying chrysophycean stomatocysts. An historical essay of classification schemes for chrysophycean stomatocysts is presented. It is noted that the stomatocysts are widely used in palaeolimnological studies. A new 395/13 morphotype of a chrysophycean stomatocyst from the pond of Peter the Great Botanical Garden is described on the basis of plankton samples. The stomatocyst is spherical (5.3 μm diam.) and has a short cylindrical collar (1.8 μm diam., 0.2 μm high), with a conical pore (0.3 μm diam.). The entire stomatocyst surface is covered with rounded scabrae 0.1–0.2 μm in diameter. Morphology of the new stomatocyst morphotype was studied and its original micrograph was made with a scanning electron microscope.

Portanini (Insecta, Hemiptera, Cicadellidae): morphology of female terminalia, first record of host plants, a new species of Portanus from Brazil, and taxonomic notes

Zootaxa ◽  
2020 ◽  
Vol 4802 (3) ◽  
pp. 569-581
Author(s):  
MÁRCIO FELIX ◽  
VICTOR QUINTAS ◽  
JÁDILA SANTOS PRANDO ◽  
GABRIEL MEJDALANI
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Host Plants ◽  
First Record ◽  
Minas Gerais ◽  
Junior Synonym ◽  
Sem Images ◽  
A New Species ◽  
Scanning Electron

Portanus adenomari sp. nov. from the Brazilian states of Minas Gerais, Paraná, and Maranhão is described and illustrated. It can be easily distinguished by the aedeagus with a pair of apical, slender curved processes, crossing each other medially. The previously unknown females of Portanus restingalis Felix & Mejdalani, 2016 and Metacephalus facetus (Kramer, 1961), as well as the female terminalia of Metacephalus sakakibarai Souza, Takiya & Felix, 2017, are also described in detail. Scanning electron microscopy (SEM) images of the ovipositor valvulae of P. restingalis are given. Comparative notes on the morphology of the female terminalia in the tribe Portanini are provided. Specimens of P. restingalis were observed feeding and resting on Bromeliaceae leaves; this is the first record of host plants for the Portanini. Metacephalus marica (Felix & Mejdalani, 2016) is regarded as a junior synonym of Metacephalus longicornis (Osborn, 1923). 

scholarly journals Montagnea haussknechtii Rab. (Podaxales) a rare agaricoid fungus: first record from Brazil

2002 ◽  
Vol 16 (3) ◽  
pp. 311-315 ◽  
Author(s):  
Iuri Goulart Baseia ◽  
Adauto Ivo Milanez
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Sandy Soil ◽  
First Record ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Microscopic Features ◽  
First Time ◽  
Scanning Electron

This xerophilic species is recorded for the first time from Brazil, found on sandy soil from cerrado of the State of São Paulo. A description of the macro and microscopic features from mature basidiomata is given. Pictures of the spores under the scanning electron microscope are added.

Morphology, Distribution and Identification of Micro-Constituents Along Grain Boundaries in Nickel-Base Alloys

1973 ◽  
Vol 31 ◽  
pp. 176-177
Author(s):  
D. E. Fornwalt ◽  
A. R. Geary ◽  
B. H. Kear
Keyword(s):  
Electron Microscope ◽  
Grain Boundaries ◽  
Volume Fraction ◽  
Rupture Life ◽  
Stress Rupture ◽  
High Volume ◽  
Precipitate Morphology ◽  
Stress Rupture Life ◽  
Nickel Base ◽  
Scanning Electron

A systematic study has been made of the effects of various heat treatments on the microstructures of several experimental high volume fraction γ’ precipitation hardened nickel-base alloys, after doping with ∼2 w/o Hf so as to improve the stress rupture life and ductility. The most significant microstructural chan§e brought about by prolonged aging at temperatures in the range 1600°-1900°F was the decoration of grain boundaries with precipitate particles.Precipitation along the grain boundaries was first detected by optical microscopy, but it was necessary to use the scanning electron microscope to reveal the details of the precipitate morphology. Figure 1(a) shows the grain boundary precipitates in relief, after partial dissolution of the surrounding γ + γ’ matrix.

The Alteration of the Pore Spaces in Sandstones

1973 ◽  
Vol 31 ◽  
pp. 210-211
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Coarse Grained ◽  
Depositional Fabric ◽  
Soluble Components ◽  
Scanning Electron ◽  
Shape And Size

The pore spaces in sandstones are the result of the original depositional fabric and the degree of post-depositional alteration that the rock has experienced. The largest pore volumes are present in coarse-grained, well-sorted materials with high sphericity. The chief mechanisms which alter the shape and size of the pores are precipitation of cementing agents and the dissolution of soluble components. Each process may operate alone or in combination with the other, or there may be several generations of cementation and solution.The scanning electron microscope has ‘been used in this study to reveal the morphology of the pore spaces in a variety of moderate porosity, orthoquartzites.

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