52 lichen species (30 epigeous species and 22 epiphytic species) were discovered in reclaimed sludge pits of 8 oil fi elds. Hypogymnia subduplicata is a new species for West Siberia and Gyalolechia fl avorubescens is a new species for KhMAO-Yugra. Frequency of occurrence for majority of lichen species is smaller than 20 %. Some lichens, for example Cladonia gracilis , C. cornuta , C. deformis, occur more frequently than other (frequency of occurrence exeeds 50 %). Some individuals of epigeous lichens in the area adjacent to oil production sites were dead. Th alluses of some epiphytic lichens were damaged and lichens were dying even in locations with reclaimed sludge pits.
On the basis of studying the mesophyll of leaves at 69 species of plants of the Roaceae family from 49 genera and 29 species of plants of the Pinaceae family from 6 genera, information on cells of complex shape in connection with their configurations and features of location was generalized. Additionally, the data on the cellular organization of the stem chlorenchyma and generative organs for 38 species of grasses were also used. The common features in the structure of grasses and pine chlorenchyma are revealed. It is shown that the assimilative cells of complex shape are oriented by their folds and projections in three mutually perpendicular directions, so three groups are distinguished among them: cellular cells of the first and second groups, as well as lobed or folded cells. Cellular cells are located along the photosynthetic organ and differ in more or less uniform sections, while in the cells of the first group they are perpendicular to the epidermis, and in the cells of the second group - are parallel to it. In lobed cells, various protrusions of the envelope manifest on the cross-sections. There are variants of the structure of chlorenchyma with the even development of all cells or with the predominance of one or another group. Along with flat cells of complex shape, many species of grasses and pine have more complicated spatial cellular configurations. More often there are cells in which the the lobed outlines on the transverse sections are combined with the cellular contours in the longitudinal direction, while the structure of the assimilation tissue is preserved.
In the work the results of studying 10 populations of Hedysarum setigerum Turcz. ex Fisch. et C.A. Mey. in the South of Siberia (Mountain Altai, Tuva, Baikal coast). Ontogenesis of this species in nature and in introduction experiment was studied, during which of the main root caudex life form was formed. Identifi ed three types of ontogenetic spectra of populations: centered in a low-disturbed coenosis, left-hand spectrum under moderate pasture load, right-hand spectrum under strong pasture load and recreation presure.
V.M. Vasjukov
Institute of Ecology of the Volga River Basin of the RAS, Branch of Samara Federal Research Scientific Center of RAS, 445003, Samara region, Tolyatti, Komzina str., 10 vvasjukov@yandex.ru
Keywords: Thymus, юг Западной Сибири, Thymus, South of Western Siberia
In the South of Western Siberia there are 19 species of the genus Thymus, including the recently described for science - Th. kamelinii Vasjukov and new for Russia - Th. rasitatus Klokov; the following is the abstract and a key for their determination.
The structure of synflorescences, the flowering of the main-florescences, co-florescences and partial florescences, as well as the perfect and pistillate flowers of Prunella vulgaris L. ( Lamiaceae) have been studied. Observations were carried out in 2016-2019 according to generally accepted methods in the Moscow region. It has been shown that the floral unit of P. vulgaris is an open bracteose thyrsus, which may be apical and unique. There are three types of synfl orescences in P. vulgaris : a single terminal thyrsus, a closed raceme or panicle of such thyrsi. It was revealed that the bisexual flowers of P. vulgaris are adichogamous (androecium and gynoecium in flowers mature at the same time). It has been established that the lifetime of bisexual fl owers is 2-4 days, and one of pistillate flowers is 4-6 days. P. vulgaris is characterized by the morning rhythm of the opening of bisexual and pistillate flowers. It has been shown that the opening of flowers in the floral units of P. vulgaris occurs in the acropetal sequence. Blooming of the floral units of the paraclades in the synflorescence occurs in the basipetal order.
Ecological-phytocenotic and fl oristic classification of forests of Tuva has been carried out. According to ecologicalphytocenotic classification, they belong to 21 association groups from 5 formations of 3 formation groups of 2 formation classes; according to floristic one - to 12 associations and 4 subassociations from 7 alliances of 5 orders of 3 classes. Comparative characteristic of layer structure in forests has been performed. Altitudinal zonal types of forests have been revealed, the boundaries of bioclimatic sectors have been specified, geobotanical review of forests of Tuva has been presented.
The long-term observation data on the species composition and productivity changes in the herb-bluegrass steppe meadow under Trifolium medium strip sowing are presented. This species was introduced into the forest-steppe of Western Siberia by Central Siberian Botanical Garden of the SB RAS. It is shown that after intrusion into the natural community, T. medium exhibits a high degree of adaptation, successfully competing with representatives of the phytocenosis. A positive eff ect of T. medium on the main dominant of the grass stand, Poa angustifolia , and a negative effect on the species of herbs, including those dominating in the natural community, as Filipendula vulgaris and Fragaria viridis , were noted. With intensive shoot formation of T. medium , mainly due to rhizomes, their total number grows up to the 7th year of life and is maintained at a high level (450-850 pcs/m2) more than 9 years with fluctuations over years. Due to T. medium participation the total productivity of the grass stand increased by 1.5-2.5 times.
The analogues of Pleistocene tundra-steppe (mammoth steppe) vegetation are shown to dwell in Altai arid high mountains (plateau Ukok): contemporary tundra-steppes and cryophytic steppes prevail in low part of alpine belt. Within fl oristic classification framework tundra-steppe communities were ascribed to class Carici rupestris-Ko bresietea bellardii Ohba 1974, cryophytic steppes - to class Cleistogenetea squarrosae Mirkin et al. 1992. New alliance Stellario petraeae-Festucion tschujensis Makunina was outlined. It unites cryophytic steppes of South Siberia mountains.
The results of detailed SEM study of fruits morphology, surface of fragmocarp and pericarp sculpture of mericarp of five eurasian species of the section Aparinoides оf the genus Galium (Rubiaceae): Galium palustre , G. trifi dum , G. ruprechtii , G. baicalense , G. brandegei from Asian Russia. The studied species have glabrate surface of mericarp. Three types of pericarp sculpture revealed: netted, netted vaguely and wrinkled, and ultrasculpture of cells surface are of the same type: folded.
In the north of Tajikistan, shoot formation and ontogenesis of a dwarf subshrub Ziziphora suff ruticosa Pazij et Vved. (Lamiaceae) were studied. It was established that ontogenesis of individuals is simple, incomplete, its duration is at least 20-25 years. In individuals, the polytivariance of ontogenesis was revealed, expressed in diff erent rates of development and omissions of the immature and virginal ontogenetic states. The description of shoot formation was showed that the specimen is characterized by a bazi-simpodial growth and the formation of the life form of a dwarf subshrub. The ontogenetic structure of six coenopopulations on the Kuraminsky and Mogoltau ranges was studied. Self-preservation of coenopopulations occurs exclusively by seed. Density does not exceed 3.7 individuals per 1 m2. In the studied coenopopulations, two types of spectrum are formed: centered with a peak in mature generative individuals and right-sided with a peak in old generative ones. The latter type of spectrum is formed under a strong anthropogenic load. All coenopopulations by demographic indicators are characterized as mature, stable.
Antimicrobial activity of extracts from the above-ground part of Monarda fi stulosa L. with respect to fi ve strains of gram-positive pathogenic bacteria was analyzed. High antimicrobial activity of the water-ethanol extracts against Bacillus cereus ATCC 10702 and B. subtilis ATCC 6633 throughout the growing period was established. Antimicrobial activity against Staphylococcus haemolyticus 1700 MRS, Enterococcus faecium ATCC 19434 and B. cereus ATCC 14579 varied during the growing period from a complete absence to a high degree of activity. Th e antimicrobial activity of the M. fi stulosa extracts was influenced from the development phase, method of preparing the extracts and their concentration, as well as by the specificity of the strains.
L.N. Poryadina
a:2:{s:4:"TYPE";s:4:"HTML";s:4:"TEXT";s:302:"Institute of Biological Problems of Cryolithozone of the Siberian Branch of the RAS - Division of Federal Research Centre "The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences", 677980, Republic оf Sakha (Yakutia), Yakutsk, Lenina Ave., 41 poryadina-lena@rambler.ru";}
Keywords: гербарий, Красная книга, лишайники, флористический район, Республика Саха (Якутия), herbarium, Red book, lichens, floristic district, Republic of Sakha (Yakutia)
Data on new locations of rare and protected lichen species of the Republic of Sakha (Yakutia) are presented: Asa hinea scholanderi , Lichenomphalia hudsoniana , Lobaria isidiosa , Masonhalea richardsonii , Melanelixia alberta na , Parmelia schinanoana , Usnea longissima. For each species, information on the location, collector, sample number in the lichen herbarium of IBPC SB RAS (SASY-L) is specified. Summarizes information about the samples of the species, previously discovered on the territory of Yakutia, data of the specimens in the herbarium SASY-L, LE, Н.
A comparative characteristic of the effectiveness of two growth regulators (Tellura-M and Artemia) in green cuttings of Ribes atropurpureum is given. It was found that humic fertilizer 1 % Tellura-M and organomineral fertilizer Artemia, in a concentration of 1:1000 are highly effective stimulators of rhizogenesis of green cuttings of Ribes atropurpureum . These regulators provide a high percentage of rooting cuttings and contribute to the formation of a well-developed root system.
E.S. Vafilova
a:2:{s:4:"TYPE";s:4:"HTML";s:4:"TEXT";s:96:"Institute Botanic Garden, UrB RAS, 620144, Yekaterinburg, 8th Marth str., 202а euvas@mail.ru";}
Keywords: сезонное развитие, феноритмика, перспективность интродукции, начало вегетации, начало цветения, длительность цветения, начало созревания семян, seasonal development, phenological rhythmics, prospectivity of introduction, the beginning of the growing season, the beginning of flowering, the duration of flowering, the beginning of seed ripening
The relationship between the seasonal development features of 213 plant species introduced into the conditions of the southern taiga and the results of their introduction was studied. With the increase of the duration of vegetational period the success of the introduction оf species was statistically significantly rised. Spring-summerautumn-winter-green species were the most promising: in these species the more intensive seed and vegetative reproduction and increased duration of flowering were observed. The prospectivity of introduction of species with early start of growing season (in the second and third decades of April), flowering (in May) and with long fl owering (more than two months) was the highest. In species from another regions the regrowth of plants, fl owering and seed ripening were beginning significantly later than in species of local flora. In species growing in nature in more severe climatic conditions, these phenophases under conditions of introduction were beginning earlier.
A local population of rare endemic species Saussurea ceterachifolia Lipsch. included in Red Data Books of Tyva Republic and Russian Federation was found in the South-Western Tyva.
The Altai-Sayan mountain region is part of the orogenic belt of southern Siberia; it covers regions that are heterogeneous in geomorphology, climate, and vegetation. This is one of the most rich and interesting Botanical areas of Siberia. A large amount of bryological data has been accumulated for the region. There is a need to generalize and analyze existing information, to assess its representativeness and state of knowledge on mosses for different parts, to identify “white spots” that require attention. Materials on the Altai-Sayan bryofl ora are compiled in a database and analyzed in the key of local flora concept. A list of the most bryologically studied areas is compiled for main subunits of the territory (Western, Northern, Central and Southeastern Altai; Salair-Kuznetsk region; Western and Eastern Sayan; Tuva). The list includs 115 key plots with links to data sources. The key plots are shown on a map. “White spots” requiring researcher attention are discussed.
The adaptation of Hedysarum alpinum to different growth conditions in Buryatia is traced by anatomical features of the leaf blade structure. Structural and quantitative changes in the anatomical structure of the leaf are analyzed, and their score is given according to the value of each trait as xeromorphic or mesomorphic.
Variability of pollen fertility and morphometric parameters in natural populations of Lonicera caerulea L. Gorny Altai was studied. Pollen of Lonicera caerulea was characterized by high fertility in various ecological and geographical conditions of the mountain system. Reducing the fertility of pollen grains and a signifi cant change in their morphometry in individual populations of L. caerulea subsp. altaica , located in areas with anomalous geophysical characteristics under the influence of a complex of undifferentiated geological and geophysical factors associated with seismotectonic activity has been established.
On the basis of 132 relevés the syntaxonomical diversity of xeric meadows from Barnaul pine forest strip was described. It is represented by 2 associations, 3 subassociations, 1 variant and 1 community from order Brachypo dietalia pinnati of the class Festuco-Brometea . Two sytaxa were firstly described. Spatial distribution of meadow communities in forest strip structure was shown.
The article presents the results of an original research on the specific of spontaneous vegetation on ash dumps in the forest-steppe zone in the south of West Siberia (Thermal Power Station 5, Novosibirsk, Russia) during the initial 9 years. The grass vegetation prevails: we detected 85 grass species, 8 tree species and 6 moss species. Th e dominating species according to the above-ground phytomass are grasses Phleum pratense , Dactylis glomerata and Agrostis gigantea ; amongst the legumes, Trifolium hybridum and T. pratense ; amongst the forbs, Artemisia dracun culus , A. vulgaris and Cirsium setosum. The vertical structure of the plant communities has the extended type. Th e air-dry phytomass was estimated as 2080 kg/ha for the bent grass-clover community, 3060 kg/ha for the forbsclover-grass community, and 5090 kg/ha for forbs-legumes-grass community with willow and sea buckthorn bushes. The above-ground phytomass exceeds the below-ground one in two communities; the values are equal for the forbs-clover-grass community.
The article deals with the characteristic of Acer species introduced in Novosibirsk and the recommendations on rational use of maples in urban environment. Study of 14 species of the genus Acer shows that A . ginnala and A. tataricum should be recommended for wider use in the city and A . spicatum , A. tegmentosum , A. mono , A. mandshuricum and A. barbinerve for limited use in gardens, parks, andresidential areas. At present A. campestre , A. pseudosieboldianum , A. semenovii show little promise due to low winter hardiness. It is essential to restrict application of the invasive species A . negundo , it should be only used near interregion motorways.
Trypsin inhibitor activity (TIA) is one of the of immunity factors, that provide ensures the presence of general nonspecific systemic resistance in angiosperm plants. In the experiment with artificial defoliation, the variability of TIA in leaves of the Siberian endemic species Hedysarum theinum Krasnob. ( Fabaceae ) has been studied. Th is is due to its use as a medicinal and fodder. It is shown that TIA in H. theinum leaves in defoliation can be one of the criteria for the adaptive capabilities of the species.
For the first time, the morphogenic potential of three types of Fritillaria meleagris floral explants - tepals, stamens, pistils - was studied to identify the most competent organs for in vitro culture initiation. It has been established, that plant growth regulators and their concentrations were the most significant factors inducing the regeneration process in the explant tissues. B5 nutrient medium supplemented with BA 0.4 μM, NAA 3.2 μM and IAA 2.3 μM was the most efficient for morphogenesis induction. A tenfold increase of BA content in this media inhibited shoot formation. Using a stereomicroscopy, it was observed that the morphogenesis processes localizes in the proximal parts of the tepals and filaments. Whereas in pistil culture regeneration process occurred across the ovary surface. A comparative assessment of the morphogenic potential revealed that tepals possessed the highest regenerative capacity among the studied types of primary explants.
The cultivation of Astragalus pendulifl orus Lam. hairy roots in the gas-vortex bioreactor “VortexLab-10” in liquid Gamborg-Eveleg medium was tested for the first time. It was shown that under the conditions of the bioreactor, cultures retained the ability to synthesize biologically active compounds (BAC) specific for this species with maintaining the growth activity ( I = 13.2). In addition, the using of gas-vortex bioreactor allowed to increase the content of individual BAC in hairy roots in comparison with shaker culture. The content of tannins increased 2.9 times, carotenoids - 5.9 times.
The Digital Herbarium of the Central Siberian Botanical Garden of SB RAS began to be created on the taxonomic basis in 2017. Completely digitized herbarium specimens of genera Allium , Geranium , Medicago , Rhododendron , family Primulaceae , rare plants of Siberian flora, as well as type specimens of vascular plants stored in NS and NSK collections at the CSBG SB RAS. The digitization results are published in the open access as 6 datasets on the Global Biodiversity Information Facility (GBIF) portal using the Integrated Publishing Toolkit (IPT) installed on the CSBG server. Digitization is performed on two ObjectScan 1600 scanners (Microtek) using soft ware ScanWizard-Botany and MiVapp-Botany according to the international standards, at 600 dpi, with a barcode, 24-color scale and spatial scale bar. The Digital Herbarium is created as a network resource on biodiversity, the materials of which can be used in GBIF, for taxonomic treatments in the preparation of “Flora of Russia”, in various types of scientific research and educational purposes.
The results of study of pathogenic mycobiota biodiversity of Viola L. leaves of the collection of the Central Siberian Botanical Garden, SB RAS are presented in the article. The composition of Viola L. leaf pathogenes involving 8 species has been determined for Western Siberia for the first time. Pathocomplexes are described. The micromycetes Ascochyta violae , Cercospora violae , Phyllosticta violae and Septoria violae form the basis of pathogenic complexes. Similarity measure of micromycetes composition of the plant leaves is assessed. More than half of comparison variants showed a reliably high similarity of the mycobiota (KSC = 1.0-0.6). It has been established that, under studied conditions, pycnidial fungi formed sporulation organs of different degrees of ripeness towards the end of vegetation period.
For the first time, 18 species of lichens, Arthrorhaphis citrinella , Normandina pulchella , Placynthiella uliginosa , Baeomyces carneus , B. placophyllus , Evernia esorediosa , Icmadophila elveloides , Japewia tornoënsis , Masonhalea inermis , Melanohalea infumata , M. septentrionalis , Montanelia tominii , Mycoblastus sanguinarius , Nephroma expal lidum , Physconia muscigena , Porpidia fl avicunda , Pseudephebe pubescens , Psora rubiformis are reported for the North-Eastern Priokhotye, the territory encompassing the coast of the Sea of Okhotsk, separated from the inner mainland area of the Magadan Region by the mountain ranges of the Kolyma-Okhotsk watershed. Th ree fi rst species are new for the Magadan Region. Data on localities and habitats of species, and also their distributions in the Russian Far East are provided. Issues of taxonomy and chorology of some disputable species are discussed. It is indicated that it is necessary to carry out a molecular phylogenetic study of Montanelia tominii s. l. on extensive herbarium materials from all parts of its range, with the mandatory inclusion of East Siberian and Far Eastern specimens.
Th e family Primulaceae Batch. ex Bork was proposed as model object for the development of a scanning technique and the information entry into a virtual herbarium and the database of the Herbarium CSBG. In M.G. Popov Herbarium (NSK) 3111 herbarium specimens from 14 genera, 98 species and 9 subspecies are stored. In I.M. Krasnoborov Herbarium (NS) 1917 herbarium specimens from 8 genera, 112 species and 16 subspecies are stored. To date, 5028 herbarium specimens of the family Primulaceae from NSK and NS collections have been digitized according to international standards. Virtual herbarium is constantly replenished with digitized images of herbarium specimens and is available for external users on the Internet (http://84.237.85.99:8081). Th e analysis of herbarium label metadata was carried out in the following three modules: taxonomic, geographic and historical. The taxonomic database of CSBG Herbarium is compatible with the international resource Catalogue of Life.
The systematic composition of the genus Populus L. and its sections has by now remained controversial. Th e traditional application of methods of comparative morphology does not always allow us to identify stable features for the delimitation of taxon. This work presents studies of the anatomical and topographical structure of the petioles of leaves and the distribution of stomata on the leaf blade of the species of the Tacamahaca section common in the northern latitudes, including the disputed East Asian taxon P. koreana , P. suaveolens and P. maximowiczii . Th e most important signs for diagnosing and identifying species of balsamic poplars are: the shape of the cross-section of the petiole in the upper part and the contour of its adaxial side. In general, the anatomical and topographic structure of the petioles of the species of the Tacamahaca section is very similar. They are characterized by: the development of a continuous layer of an angular-lamellar collenchyma under the epidermis, which has a relatively small total cross-sectional area occurs; gradual transition from an angular-lamellar collenchyma to a parenchyma; powerful development of chlorenchyme with large intercellular spaces on the adaxial side; high arched arrangement of the conductive system; the presence of a trough on the adaxial side. Analysis of the epidermis P. maximowiczii , P. koreana and P. suaveolens showed that on the shortened shoots the leaf plates of this taxon are hypostomatic and can not be distinguished by this feature, but they differ in the signs of petyolar anatomy.
The article contains information about the type materials for 18 taxa of the genera Astragalus and Oxytropis from family Fabaceae kept in M.G. Popov Herbarium of the Central Siberian Botanical Garden SB RAS (NSK), Herbariums of the Komarov Botanical Institute (LE) and Moscow State University (MW). The type category is indicated, text of the original label and text of protologue are cited for each specimen. 104 type specimens were found in collections, including 7 lectotypes, 17 isolectotypes, 11 holotypes, 24 isotypes, 2 syntypes, 37 paratypes and 6 authentic specimens. Lectotypes for name of 7 taxa were designated: Astragalus chorinensis Bunge var. popovii Peschkova, Oxytropis adenophylla Popov, O. ircutensis Popov, O. oxyphylla (Pall.) DC. var. argentatifolia Popov , O. oxyphylloides Popov, O. peschkovae Popov, O. tompudae Popov. Information about the 2 isotypes, 32 isolectotypes, 1 paratype from the largest virtual herbaria of the world are cited.
Biological peculiarities of Th ymus praecox Opiz ( Lamiaceae ) were studied in West Siberia in 2011-2018. It was determined that, when introduced to the new area, the species developed as a summer-wintergreen perennial. Th e plant passed through all the phases of seasonal development, bloomed and bore fruit regularly, retained green foliage in winter. Examination of sexual diff erentiation showed that the introduced species had only bisexual flowers. A histological study of buds’ anatomy revealed that fruit buds formed in the spring of a subsequent year.
Ontomorphogenesis of the short-rhizomed life form of the species is described. Five coenopopulations of Phlomoides tuberosa (L.) Moench were studied in the south of Siberia (Mountain Altai, Khakassia. Tuva). Th ree types of ontogenetic spectrums of coenopopulations were identified: left-sided in conditions of enhanced anthropogenic impact, bimodal under moderate pasture load and centered in a low-disturbed cenosis. Th e optimum state of P. tuberosa coenopopulations is reached in open, fairly moistened meadow and meadow-steppe communities experiencing moderate anthropogenic impact. Under these conditions, developed generative individuals of P. tuberosa are formed and its regular seed renewal is ensured.
A.V. Agafonov, E.V. Shabanova (Kobozeva), S.V. Asbaganov
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101 agalex@mail.ru
Keywords: Elymus, E. komarovii, Е. transbaicalensis, E. sajanensis, E. kronokensis, ISSR-маркеры, микроэволюционные отношения, Elymus, E. komarovii, Е. transbaicalensis, E. sajanensis, E. kronokensis, ISSR-markers, microevolutio nary relationships
Microevolutionary relationships among Siberian species Elymus komarovii and E. transbaicalensis in comparison with some accessions of reference species of E. sajanensis and E. kronokensis were studied by the ISSR-marking method. The used set of primers has shown efficiency for identification intra- and interspecific genetic differentiation of the studied species. Previously obtained evidence that species characters overlap as a result of introgressive hybridization were confi rmed. The close relations of species genomes provide normalization of seed fertility of spontaneous hybrids in next generations. Therefore, the individuals combining characters of two or more species are found in the mixed populations. In that case similar morphotypes may diff er signifi cantly from each other genetically.
On the territory of the 24 natural monuments of the Novosibirsk region was discovered new locations of 19 species of vascular plants included in the Red List of the Novosibirsk region, 1 species new to Novosibirsk region.
As a result of field research conducted in July-August 2018, a number of alien species of flowering plants were identified, which are new and rare for certain areas of the Prieniseyskaya Siberia. For the first time in the region, three species were found, namely Carduus acanthoides , Ixeridium gramineum , and Verbascum lychnitis . Th ere were seven species new for the Republic of Tyva ( Achillea nobilis , Conyza canadensis , Ixeridium gramineum , Sisymbrium altissimum , Cynoglossum offi cinale , Portulaca oleracea , Verbascum lychnitis ). Three species ( Carduus acanthoides , Centaurea pseudomaculosa , Chrysaspis campestris ) turned to be new for the Krasnoyarsk Territory, and two species ( Oenothera biennis , Saponaria offi cinalis ) are novelties for Khakassia. In addition, new locations of several rare in the region alien plant species ( Centaurea jacea , Helianthus tuberosus , Inula helenium , Oenothera villosa , Xanthium strumarium ) are indicated. The article provides information on the locations of all these species.
The article describes for the first time the results of the investigation of the initial stages of natural revegetation of the coal combustion ash dump (3 study sites, differing in water content) in the forest-steppe zone in the south of West Siberia (near Thermal Power Station 5, Novosibirsk, Russia). The primary succession of the vegetation on the dump is dominated by grasses and herbs, of which 38 species, alongside with 5 tree species and 7 moss species, were found. Under soil nutrients deficit soil water content is the main factor driving the dump revegetation rate. Transition from the open plant community with 80 % projective cover to the successional stages dominated by grasses and herbs is described. Grasses dominated by Calamagrostis epigeios were found to account for most of the above-ground phytomass. Synanthropic species such as Berteroa incana, Artemisia vulgaris, Lepidium ruderale and some others were also found. The vertical structure of the plant communities could be described as the ground type. Th e standing phytomass in the 10th year of revegetation of the ash dump was estimated as 150 kg/ha in the open plant community, 2800 kg/ha in the reed-smallreed community and 3770 kg/ha of the air-dried mass in the sweet-cloversmallreed community. The aboveground phytomass exceeded the belowground one in each studied dump sites.
The composition and content of phenolic compounds and chemical elements have been studied in Padus avium leaves from various growing conditions in the south of Western Siberia. In water-ethanol extracts of leaves, analyzed using the HPLC method, 10 major components were detected, including: gallic, caffeic, chlorogenic acid, hyperoside, isoquercitrin and astragalin. The content of the sum of phenolic compounds, among which quercetin derivatives predominate, was from 0.9 to 2.7 %. The elemental chemical composition was determined aft er dry ashing by atomic emission spectrographic analysis. As a whole samples from different ecotopes are not diff erent statistically. Cd and Pb content did not exceed the MPC for medicinal plant materials.
