scholarly journals DETERMINATION OF THE STEROL STATE OF GENERATIVE PLANTS OF HEATH SPOTTED-ORCHID (DACTY-LORHIZA MACULATA (L.) SOÓ) (ORCHIDACEAE) BY GC-MS

2020 ◽  
pp. 171-178
Author(s):  
Evgeniy Nikolayevich Sechin ◽  
Oleg Anatolyevich Marakaev ◽  
Gavriil Borisovich Gavrilov

For the first time, the phytosterol state of the underground and aboveground organs of the tuberoid species of the orchid Dactylorhiza maculata (L.) Soó (Orchidaceae), which grows in the natural conditions of the Central European part of Russia, was studied using gas chromatography with a mass spectrometric detector. The plant material contains cycloartenol, cycloeukalenol, campesterol, brassicasterin, β-sitosterol, stigmasterol and ergosterol, which was found in underground organs and belong to mycosymbiont. The ergosterol content in the adventitious roots is five times higher compared to the endings of stem root tuberoids. The phytosterols content of the aboveground organs of D. maculata is more diverse than that of the underground organs. The basic sterol of D. maculata is β-sitosterol (60%), which is present in all organs. Also a high amount was noted for cycloartenol (20%), which is absent in the stem. Cycloeukalenol (7%) was found in inflorescences and leaves, campesterol (2%) in inflorescences, brassicasterin (5%) in the adventitious roots, stigmasterol (5%) in the leaves. Differences in the sterol statuses of organs can be explained by the biochemical characteristics of their tissues and the uneven functional significance of the identified compounds for the growth and development of generative individuals of D. maculata in the budding phase. The results obtained indicate the diversity of phytosterol compounds and their uneven content in various organs of the studied plant object.

Zootaxa ◽  
2019 ◽  
Vol 4576 (2) ◽  
pp. 347
Author(s):  
ALEXEY V. SHAVRIN ◽  
EDUARD A. KHACHIKOV

New taxonomic, morphological and faunistic data for three Western Palaearctic species of the genus Acrolocha Thomson, 1858 are provided. Acrolocha caucasica Tóth, 1976 is redescribed and illustrated. The lectotype for A. pliginskii Bernhauer, 1912 is designated. Acrolocha amabilis (Heer, 1841) is recorded from Central European part of Russia and Georgia for the first time. 


Author(s):  
R.V. Khusainov ◽  

Investigations of fauna of cephalobid nematodes from field agrocenosis were carried from the territory of the Central-European part of Russia in 2016–2018. In total ten genera of the family Cephalobidae were found. Nematodes of genus Acrolobus (A. emarginatus) has been reported in Russia for the first time. Chiloplacus and Eucephalobus nematodes were presented by the most species diversity. Nematodes of genera Cephalobus and Eucephalobus founded in the samples constantly (93 & 90% samples respectively). The second by frequency of occurence was taken species from genera Acrobeloides and Chiloplacus (86 & 75% samples). Acrobeles spp. and Cervidellus spp. detected in almost half of the soil samplies (57 & 48%). Acrolobus and Heterocephalobus nematodes were most rarely discovered genus (24 & 16%). Acroucrainicus and Stegelletina nematodes founded in agrocenosis singly and only in the territory of the Chernozem Region. Species of genera Acrolobus and Heterocephalobus were registered into the roots generally, while of the rest cephalobid genera were founded both in soil and into damaged or necrotic roots.


2018 ◽  
Vol 52 (1) ◽  
pp. 91-100
Author(s):  
E. Yu. Blagoveshchenskaya

The paper provides the results of seven-year study of downy mildew on Skadovsky Zvenigorod Biological Station of Moscow State University (ZBS MSU, Moscow Region). A total of 29 species of Peronosporales (Oomycota) were revealed during the study. An annotated list of species is presented, among them Peronospora anemones is recorded for the first time for Russia, P. chelidonii and P. stachydis are new for the European part of Russia, 8 species are new for the Moscow Region.


2013 ◽  
Vol 47 ◽  
pp. 68-73
Author(s):  
S. V. Volobuev

The corticioid basidiomycete Jaapia ochroleuca (Bres.) Nannf. et J. Erikss. is recorded for the first time in the European Russia from the «Bryansky Les» Nature Reserve (Bryansk Region). The taxonomic position of the species is defined briefly. Its morphological description and data on distribution and ecology are provided. The details of microscopic structure of the collected specimen are illustrated.


2020 ◽  
Vol 6 ◽  
pp. 423-428
Author(s):  
Alexey S. Sazhnev

The species Berosus geminus Reiche & Saulcy, 1856 (Hydrophilidae) is recorded for the first time for European part of Russia. A map with the general distribution of this species is provided.


2020 ◽  
Vol 57 ◽  
pp. 85-100
Author(s):  
Viktoria Tarasova ◽  
Liudmila Konoreva ◽  
Mikhail Zhurbenko ◽  
Tatiana Pystina ◽  
Sergei Chesnokov ◽  
...  

Thirty-one lichen-forming fungi, 12 lichenicolous fungi, and 5 non-lichenized fungi are reported as new for Arkhangelsk Region; 7 species are new for its mainland area. Micarea fallax is reported for the first time for Russia; M. laeta and M. pusilla are new for the European part of Russia. The second finding of Nicropuncta rugulosa for Russia is recorded; microconidia are first observed in this species. The records of ten species which have been included in the new edition of the Red Data Book of the Arkhangelsk Region (2020) are presented. Nephromopsis laureri from the Red Data Book of the Russian Federation (2008) and Leptogium rivulare from the IUCN Red List are reported for the first time for Arkhangelsk Region.


Author(s):  
A. S. Volynkina ◽  
A. N. Kulichenko

Presented are the results of gene-typing of CCHF virus detected in clinical samples from CHF patients from the Stavropol, Rostov and Astrakhan Regions in 2011. For 28 samples determined are nucleotide sequences of the fragments 115–652 (S segment) and fragments 984–1469 (M segment). Philogenetic analysis of these nucleotide sequences demonstrated that typical strains circulated in 2011 in the regions under surveillance, importation of the new genetic variants of the virus did not take place. CCHF virus variant affiliated to the subgroup “Astrakhan-2” was detected in the clinical samples for the first time and characterized for its genome S- and M-segment fragments.


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