Three new gall mite records (Acari: Acariformes: Eriophyoidea) from Hungary and supplementary description of two species

2021 ◽  
Author(s):  
Géza Ripka ◽  
Enikő Kiss ◽  
Jenő Kontschán ◽  
Árpád Szabó
Keyword(s):  
Leaf Margin ◽  
Salix Alba ◽  
Gall Mite ◽  
Erigeron Annuus ◽  
Potentilla Reptans ◽  
First Time

AbstractThree eriophyoid species are recorded for the first time in Hungary, viz. Paraepitrimerus erigeronsis Xue et Hong collected from Erigeron annuus (L.) Pers. (Asteraceae), Phyllocoptes parvulus (Nalepa) from Potentilla reptans L. (Rosaceae) and Aceria salicina (Nalepa) from Salix alba L. (Salicaceae). In addition, supplementary description of the vagrant phyllocoptine mite, Paraepitrimerus erigeronsis, and the deuterogynous and leaf margin rolling Aculus craspedobius (Nalepa) from Salix integra Thunb. (Salicaceae) is provided.

scholarly journals Aceria kuko Mites: a Comprehensive Review of Their Phytosanitary Risk, Pathways and Control

2016 ◽  
Vol 73 (2) ◽  
pp. 89
Author(s):  
Roxana Ciceoi ◽  
Elena Ștefania Mardare
Keyword(s):  
Protective Measure ◽  
Present Moment ◽  
The European Union ◽  
Native Plant ◽  
Potential Threat ◽  
Plant Pest ◽  
Gall Mite ◽  
Goji Berries ◽  
And Control ◽  
First Time

The present review aims to identify the phytosanitary risk, the pathways and the possible control methods of a new eryophid alien species mentioned for the first time in Romania in 2010. The pest is Aceria kuko, the goji-berries gall mite, imported in Europe from China via orders by mail possibly in 2007 or 2008. Although the import from third countries into the European Union of Solanaceae intended for planting is prohibited according to Dir. 2000/29/EC, as a protective measure against the introduction into the Community of organisms harmful to plants or plant products and against their spread within the Community, the parcels ordered by mail escape the quarantine and pest & disease control services. Our field observations regarding the attack frequency, attack intensity and the losses indicate that the non-native plant pest is a potential threat also for Romania, although no attention has been given to it until the present moment. We consider that monitoring the presence of the mite in the Romanian Goji plantations and the changes in the A. kuko biology and ecology has a strategic importance and should be regarded as a biosafety measure not only for Romania, but for entire Europe, as the Goji fruits produced in Romania are mainly exported in the European countries.

A new species of Plaubelia Bridel (Pottiaceae, Bryophyta) from India

Phytotaxa ◽  
2018 ◽  
Vol 374 (4) ◽  
pp. 297
Author(s):  
A.K. ASTHANA ◽  
ANKITA SRIVASTAVA
Keyword(s):  
New Species ◽  
Leaf Margin ◽  
Middle Leaf ◽  
First Time ◽  
A New Species

The genus Plaubelia Bridel has been identified at Shillong (Meghalaya) for the first time in India. Interestingly the plants are distinctly different from hitherto known species of the genus hence described here as P. khasiana sp. nov. It is characterized by rosulate habit of plants, leaves appressed falcate when moist, upper leaves larger than the lower leaves, broad at middle, leaf margin crenulate, involute up to middle, apex subacute to apiculate, costa ending below the apex and the presence of oval or round gemmae.

scholarly journals A novel insight into the remnants of hygrophilous forests and scrubs of the Po Plain biogeographical transition area (Northern Italy)

2020 ◽  
Vol 57 (2) ◽  
pp. 17-69
Author(s):  
Livio Poldini ◽  
Marisa Vidali ◽  
Miris Castello ◽  
Giovanni Sburlino
Keyword(s):  
Salix Alba ◽  
Swamp Forest ◽  
Po Plain ◽  
New Associations ◽  
High Plain ◽  
New Association ◽  
Threatened Habitats ◽  
First Time ◽  
Detailed Picture ◽  
Insight Into

Hygrophilous forests and scrubs are ecotonal habitats providing essential ecosystem services, especially in human-modified landscapes; nevertheless, they are among the most threatened habitats worldwide. A sound knowledge of waterside woody vegetation provides a valuable basis for interventions of renaturation of waterbodies. This paper focuses on peculiar communities that occur in riparian and swamp areas of the Po Plain, a broad ecotonal area between the Mediterranean and Temperate regions. The study allowed the description of six new associations. Moreover, it provides a detailed picture of Dioscoreo communis-Populetum nigrae (Populetalia albae) and Amorpho fruticosae-Salicetum albae (Salicetalia purpureae), an overview of Salicetum triandrae (Salicetalia purpureae) at the national and European level, and an update of the alliance Dioscoreo-Ulmion minoris, which is better characterized, classified in Populetalia albae and enlarged to include five associations of elm-oak-rich forests of the Po Plain lowlands and the Karst. Dioscoreo-Ulmion includes, besides Lamio orvalae-Ulmetum minoris, also Polygonato-Quercetum roboris and three new associations: Vinco minoris-Ulmetum minoris and Salvio glutinosae-Quercetum roboris from Po Plain rivers and the karstic lakeshore Rhamno catharticae-Ulmetum minoris. The new arrangement of Dioscoreo-Ulmion results from an analysis of Po Plain elm-rich forests including stands so far attributed to the critical alliance Alnion incanae; the presence of Querco-Ulmetum minoris in Italy is discussed. Two new associations are attributed to Prunetalia spinosae: Salici eleagni-Juniperetum communis and Ulmo minoris-Paliuretum spinae-christi. Stands from the Rivers Isonzo and Tagliamento referred to Veratro nigri-Fraxinetum excelsioris and to the new association Carici albae-Fraxinetum excelsioris represent the outermost expressions of the Ostryo-Tilion ravine forests extending towards the High Plain. A Salix alba swamp forest, Galio palustris-Salicetum albae, is reported for the first time in Italy and attributed to Alnetea glutinosae.

Taxonomic and nomenclatural notes on Boerhavia (Nyctaginaceae) in India

Phytotaxa ◽  
2020 ◽  
Vol 455 (4) ◽  
pp. 277-286
Author(s):  
ARUN PRASANTH RAVICHANDRAN ◽  
MILIND M. SARDESAI ◽  
S. R. YADAV
Keyword(s):  
Current Distribution ◽  
Leaf Margin ◽  
Morphological Comparison ◽  
First Time

Boerhavia coccinea (Nyctaginaceae) is recorded for the first time in India (Satara district, Maharashtra). The name B. procumbens, previously synonymized with B. diffusa, is here accepted for a distinguished species on the basis of nature of stem (color and hairiness), hairs on leaf margin, type of inflorescence and shape of the anthocarp. The current distribution of B. procumbens in India is also provided. A detailed description, as well as illustration, photographs, distribution and a morphological comparison among B. coccinea, B. crispa, B. procumbens, and B. diffusa are also given. Lectotypes of the names B. crispa and B. procumbens (deposited at K) are designated.

Two additional Chiastocaulon species (Marchantiophyta: Plagiochilaceae) from the Wet Tropics Bioregion of north-eastern Queensland

2018 ◽  
Author(s):  
Matt A. M. Renner ◽  
Stuart Worboys
Keyword(s):  
New Species ◽  
Leaf Shape ◽  
Leaf Margin ◽  
Additional Species ◽  
The North ◽  
North Eastern ◽  
Wet Tropics ◽  
First Time

Two additional species of the liverwort genus Chiastocaulon Carl, namely, C. fasciculatum M.A.M.Renner sp. nov. and C. pachycephalum (De Not.) Herzog, are reported from two mountain tops in the north of the Queensland Wet Tropics Bioregion, namely, Mount Finnigan and Thornton Peak. Given the recent completion of a revision for Chiastocaulon in Australia, the new species provides another cogent demonstration that the bryophyte flora of the Wet Tropics Bioregion is incompletely explored and documented. The new species Chiastocaulon fasciculatum is similar to C. dendroides (Nees) Carl, but can be distinguished by leaf shape and dentition, among other characters. The leaves of C. fasciculatum are ovate and bear two or three prominent equally sized teeth, and the ventral leaf margin bears two to eight smaller teeth, whereas the leaves of C. dendroides are elliptic and bear two unequally sized teeth, the postical of which is largest, and the ventral leaf margin is entire. Chiastocaulon fasciculatum, as far as currently known, is endemic to the Wet Tropics Bioregion. Chiastocaulon pachycephalum, of which the type is from Borneo, is reported for Australia for the first time from specimens collected on Mount Finnigan.

scholarly journals Petrocosmea nanchuanensis (Gesneriaceae), a new species from Chongqing, China

PhytoKeys ◽  
2020 ◽  
Vol 157 ◽  
pp. 137-144
Author(s):  
Zhi-Jing Qiu ◽  
Jun Zhang ◽  
Xavier-Ravi Baskaran ◽  
Jin Hu ◽  
Zhen-Yu Li ◽  
...  
Keyword(s):  
New Species ◽  
Leaf Margin ◽  
Lower Lip ◽  
Chongqing Municipality ◽  
Molecular Studies ◽  
Morphological Differences ◽  
Distinct Features ◽  
First Time ◽  
A New Species

A new species, Petrocosmea nanchuanensis Z.Y. Liu, Z.Y. Li & Z.J. Qiu from Mt. Jinfo at Banhe valley of Nanchuan District in Chongqing Municipality (China) is described and illustrated for the first time. Even though this new species is similar to Petrocosmea barbata, it has several significant morphological differences, which includes smaller leaves, repand leaf margin, densely appressed longer pubescences on both surfaces of leaves, larger flower with length of its lower lips about three times longer than that of the upper lips, oblong lower lip lobes, shorter pistil, ovate anthers and styles that are shortly pubescent or approximately glabrous above the middle. The distinct features of P. nanchuanensis and four relative species namely, P. barbata, P. longipedicellata, P. cavaleriei and P. xanthomaculata were also represented in depth. However, P. nanchuanensis is most closely related to P. barbata, based on molecular studies.

Hymenopterous Parasites of Willow Insects

1940 ◽  
Vol 31 (1) ◽  
pp. 35-44 ◽  
Author(s):  
E. McC. Callan
Keyword(s):  
Distinct Species ◽  
Common Species ◽  
Salix Alba ◽  
Gall Midges ◽  
Vegetable Food ◽  
Structural Differences ◽  
Animal Diet ◽  
First Time

1. Eight Ichneumonoidea, fourteen Chalcidoidea and six Proctotrupoidea are recorded as parasites of willow insects.2. The majority of records are of parasites bred from insects inhabiting the wood of the cricket bat willow, Salix alba var. caerulea, Smith, the more important being Torymus pulchellus, Thoms., Tridymus salicis, Nees, Eupelmus urozonus, Dalm., Microterys clavellatus, Dalm., Tetrastichus roesellae, DeG., Tetrastichus inunctus, Nees, Tetrastichus flavovarius, Nees, Tetrastichus ? acuminatus, Ratz., and Platygaster sp.3. Microterys clavellatus is recorded for the first time as a parasite of Cecidomyiidae.4. Evidence is given for the separation of the gall-midges, Rhabdophaga sp. and R. saliciperda, Duf., as distinct species based both on structural differences and on a study of their parasites, for the three parasites found most commonly attacking Rhabdophaga sp. were never bred from R. saliciperda, and the most common species parasitizing R. saliciperda was never obtained from Rhabdophaga sp.5. It is confirmed that Eurytoma salicis, Thoms., supplements its animal diet with vegetable food.6. The rate of parasitism of Euura atra, Jur., by Eurytoma salicis is given as 19·8 per cent., and that of Rhabdophaga sp. by Platygaster sp. as 40·5 per cent.7. Histograms are given of Rhabdophaga sp. and its parasites, Torymus pulchellus, Thoms., Tetrastichus roesellae, DeG., and Platygaster sp., the emergence of Platygaster sp. coinciding approximately with that of its host.

Annulate lamellae in the Sertoli cells of guinea pig testis after unilateral torsion of the spermatic cord

1984 ◽  
Vol 42 ◽  
pp. 196-197
Author(s):  
J. Chakraborty ◽  
A. P. Sinha Hikim ◽  
J. S. Jhunjhunwala
Keyword(s):  
Sertoli Cells ◽  
Guinea Pigs ◽  
Spermatic Cord ◽  
Present Report ◽  
Cell Types ◽  
Annulate Lamellae ◽  
Spermatogenic Cells ◽  
Electron Microscopic ◽  
Structural Details ◽  
First Time

Although the presence of annulate lamellae was noted in many cell types, including the rat spermatogenic cells, this structure was never reported in the Sertoli cells of any rodent species. The present report is based on a part of our project on the effect of torsion of the spermatic cord to the contralateral testis. This paper describes for the first time, the fine structural details of the annulate lamellae in the Sertoli cells of damaged testis from guinea pigs.One side of the spermatic cord of each of six Hartly strain adult guinea pigs was surgically twisted (540°) under pentobarbital anesthesia (1). Four months after induction of torsion, animals were sacrificed, testes were excised and processed for the light and electron microscopic investigations. In the damaged testis, the majority of seminiferous tubule contained a layer of Sertoli cells with occasional spermatogonia (Fig. 1). Nuclei of these Sertoli cells were highly pleomorphic and contained small chromatinic clumps adjacent to the inner aspect of the nuclear envelope (Fig. 2).

Electron spectroscopic imaging and diffraction

1991 ◽  
Vol 49 ◽  
pp. 706-707
Author(s):  
M. Rühle ◽  
J. Mayer ◽  
J.C.H. Spence ◽  
J. Bihr ◽  
W. Probst ◽  
...  
Keyword(s):  
Materials Science ◽  
Electron Spectroscopic Imaging ◽  
Magnetic Filter ◽  
Magnetic Imaging ◽  
Illumination System ◽  
Probe Size ◽  
Diffraction Patterns ◽  
Fritz Haber ◽  
Koehler Illumination ◽  
First Time

A new Zeiss TEM with an imaging Omega filter is a fully digitized, side-entry, 120 kV TEM/STEM instrument for materials science. The machine possesses an Omega magnetic imaging energy filter (see Fig. 1) placed between the third and fourth projector lens. Lanio designed the filter and a prototype was built at the Fritz-Haber-Institut in Berlin, Germany. The imaging magnetic filter allows energy-filtered images or diffraction patterns to be recorded without scanning using efficient area detection. The energy dispersion at the exit slit (Fig. 1) results in ∼ 1.5 μm/eV which allows imaging with energy windows of ≤ 10 eV. The smallest probe size of the microscope is 1.6 nm and the Koehler illumination system is used for the first time in a TEM. Serial recording of EELS spectra with a resolution < 1 eV is possible. The digital control allows X,Y,Z coordinates and tilt settings to be stored and later recalled.

A Novel TEM Technique for Characterizing As-Grown CVD Diamond Films

1991 ◽  
Vol 49 ◽  
pp. 956-957 ◽  
Author(s):  
Z.L. Wang ◽  
J. Bentley ◽  
R.E. Clausing ◽  
L. Heatherly ◽  
L.L. Horton
Keyword(s):  
Diamond Films ◽  
Chemical Vapor ◽  
Growth Direction ◽  
Dark Field ◽  
Growth Surface ◽  
Specimen Preparation ◽  
Transmission Electron ◽  
Diffraction Patterns ◽  
First Time ◽  
Microstructural Studies

Microstructural studies by transmission electron microscopy (TEM) of diamond films grown by chemical vapor deposition (CVD) usually involve tedious specimen preparation. This process has been avoided with a technique that is described in this paper. For the first time, thick as-grown diamond films have been examined directly in a conventional TEM without thinning. With this technique, the important microstructures near the growth surface have been characterized. An as-grown diamond film was fractured on a plane containing the growth direction. It took about 5 min to prepare a sample. For TEM examination, the film was tilted about 30-45° (see Fig. 1). Microstructures of the diamond grains on the top edge of the growth face can be characterized directly by transmitted electron bright-field (BF) and dark-field (DF) images and diffraction patterns.

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