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EN
The interior depressions in the Olsztyn area are characterized by high biodiversity. On the basis of floral surveys of 32 small water bodies, 200 species of vascular plants and 10 species of bryophytes were recorded. Phytosociological analysis indicated 45 plant associations. Among the phytocoenoses described, some communities require more attention, including Wolffietum arrhizae, Riccietum fluitantis, Charetum fragilis, the pondweeds Potametum nitentis and P. commpressi as well as communities with Potamogeton trichoides and P. pusillus. In light of their significant natural value, some of the basins studied units should be protected as ecological grounds. Reservoirs located in the Jaroty District, in the vicinity of Lake Track or some reservoirs located within the Gutkowo and Kortowo districts are important points of peatwater or water accumulation. These small water bodies limit the nutrient and pollutant input into the numerous lakes located in the Olsztyn area. Some basins are of a recreational character, including the reservoir located in the central quarter of the town and the water bodies of the Kortowo District. The remaining reservoirs need restoration and litter collection to restore their recreational functions.
EN
The objective of this experiment was to investigate the effect of various concentrations of sucrose, 6-(γ,γ-dimethylallylamino)-purine (2iP) and pH values of Lloyd’s and McCown’s medium (1981, WPM) on the induction of lateral shoot growth in Chamaedaphne calyculata (L.) Moench. The explants were 2–3 cm nodal sections without the apex, with preserved leaves, from plants grown in vitro. The highest regenerative capacity was observed in culture media without cytokinin, with 58 mM sucrose content and pH 5.0. The lowest capacity for shoot organogenesis was reported in media with pH 5.6 with a higher sucrose content (88 mM) and 25 μM of 2iP. 80% of rooted explants were successfully transferred to ex vitro conditions. The survival rate of plantlets reached around 60% after three months of greenhouse cultivation.
PL
Badania podjęte w tej pracy miały na celu zbadanie wpływu różnych stężeń sacharozy, 6-(γ,γ-dimetyloallioamino)-puryny (2iP) oraz odczynu pH pożywki LLOYDA i MCCOWNA (1981,WPM) na efektywność procesu indukcji rozwoju pędów bocznych u Chamaedaphne calyculata (L.) Moench. Eksplantatami były fragmenty węzłowe pozbawione wierzchołka wzrostu pędu o długości od 2 do 3 cm, z zachowanymi liśćmi, pochodzące z roślin hodowlanych w kulturach in vitro. Najwyższy stopień regeneracji stwierdzono na podłożu bez dodatku cytokininy, zawierającym sacharozę w stężeniu 58 mM, o pH 5,0. Najsłabszą organogenezę pędową obserwowano na pożywkach o wyższym stężeniu sacharozy (88 mM), z 2iP o stężeniu 25 μM oraz o pH 5,6. 80% ukorzenionych eksplantatów pomyślnie przeniesiono do warunków ex vitro. Przeżywalność roślinek w warunkach szklarniowych po 3 miesiącach wynosiła około 60%.
EN
A total of 47 localities of Baeothryon alpinum, hosting population of more than 100 000 shoots, were recorded in the lowland part of Poland during field surveys in the years 2003-2009. Among them were 25 populations discovered for the first time. Out of 57 sites of the species known from literature and unpublished (including herbarium) sources, 35 were not confirmed during the survey, 27 of them being definitely extinct. B. alpinum shows a clear pattern of distribution in Poland, with three main areas of occurrence: 1) the north-easternmost Poland (Lithuanian Lake District with the adjacent parts of the Masurian Lake District and the upper Biebrza river valley in North Podlasie Lowlands), which is part of the species boreal main range; 2) scattered localities in north-western Poland; 3) mountain mires at higher altitudes in the Sudetes and Tatra mountains and the adjacent part of southern Poland. The main aggregation of localities is found in Augustów Forest (including the Sejny Lakeland and Wigry National Park), and in the Góry Sudawskie region with adjacent areas. The biggest Polish population in the "Kobyla Biel" fen near Augustów consisted of several dozens of thousands of shoots. The Lithuanian Lake District is an area of general importance for the conservation of B. alpinum in Poland. The species is threatened, first of all, due to secondary succession (mires overgrowing with shrubs, trees and reed) and requires conservation measures as well as establishing nature reserves in places where it occurs. The degree that B. alpinum decreases in number is strikingly different in particular regions of Poland - it has lost most of its localities in north-western Poland and in Masurian Lake District, while in the Lithuanian Lake District and the upper Biebrza valley there are minor losses only. Depending on the region (from the west to the east and from the south-west to the north-east), the species should be given extinct or critically endangered (regions of north-western and southern Poland), endangered (Masurian Lake District), vulnerable (North Podlasie Lowlands) and near threatened (Lithuanian lake District) status. Although the disappearance of the populations beyond the species main range is a common phenomenon, the presented pattern is man-related and connected with differences in land management.
EN
The study was design to draw attention to correlation of locals with plants and their conservation status. The research work was carried out in tehsil Takht Bhai, district Mardan during 2008-2010. Fieldwork was conducted using an arrangement of interviews, questioners and personal observation. The IUCN 2001, Red Data List Categories and Criteria was used to determine the conservation status of plants. The present study documents the ethno medicinal and conservation status of 34 plant species belonging to 20 families. Among these 12 species were found to be rare, vulnerable (11 species), endangered (9 species) and Infrequent (2 species). From this study we have concluded that most plant species are going to become endangered and no one plant specie was found dominant because the natural vegetation area was change into urbanization and agricultural reason.
EN
The basic aim of the work was to widen the knowledge about variation of Pinus mugo in the Karkonosze (Giant) Mountains and verification of provenance of several, probably planted populations on that basis. Seven populations were sampled, four on hardly accessible precipices of glacial cirques as natural, and three on the topical, mostly plane or only slightly in clined parts of the mountains as potentially alien ones. The variation of the needles was biometrically analyzed in respect of 23 morphological and anatomical characters. Measurement data were subject of multivariate statistical analyses. Results call attention on rather continuous variability of P. mugo in the Karkonosze Mts. The differences among samples were found as relatively low and no direct connections have been detected between variation and provenance from precipices versus plane sites.
EN
We present a study of the distribution, ecology and conservation status of Cupressus atlantica, an endemic tree of the High Atlas (Morocco). The main populations of this species grow in a reduced area along the N’Fiss valley in the Central High Atlas and are gradually receding. Particular populations are increasingly fragmented and the total area covered by the cypress woodland has decreased to less than a third of the surface occupied in the 1930s. Overgrazing reduces the woodlands’ regenerative capacity, and the exploitation of the wood, linked to traditional uses by the rural society of the N’Fiss valley, directly reduces the number of trees. Great efforts being made to protect the species by the Haut Commissariat aux Eaux et Forêts are having some effect in recent years.
EN
The vegetation cover of the Głuszec stream valley was investigated. The article presents a list of 294 recorded species of vascular plants from 65 families and, also, 47 plant associations from nine classes, from three dynamic vegetation circles: Carici elongatae-Alnetum, Fraxino-Alnetum and Querco- -Ulmetum minoris. Six types of vegetation complexes were documented. Their phytocoenotic structure was shown in a table containing 􀍻􀎂 relevés made in sigmassociations. The preliminary results of research on the dynamics of Dactylorhiza incarnata population, occurring in one of meadow complexes, were presented. The Głuszec stream valley was recognised as the region of exceptional natural plant cover within the city of Poznań and proposed to be incorporated into the green network of the Poznań Agglomeration. The valley was also included in the agri-environmental program. An active protection of grassland ecosystems is achieved by adhering to the requirements of this program and additional recommendations of an expert botanist.
EN
The paper presents soil conditions of Pulsatilla vernalis in the Polish lowland. There were determined species preferences in relation to physical and chemical properties, grain size composition and the type of soil. It has been found that P. vernalis prefers very poor sandy, acid, dry and permeable soils, with small water capacity. The range of habitat parameters at the lowland sites differs, however, from the conditions at the mountain sites. Due to specific habitats of the species, new ecological indicator values were proposed for the lowland sites of P. vernalis. The results of soil analysis presented in this paper, as well as other data related to biology of the species, should be accounted for in the active protection plan, including the processes of reintroduction and introduction of the species.
EN
Leatherleaf Chamaedaphne calyculata (L) Moench is a relict, rare and endangered species in Poland. There are no reports on the micropropagation of Chamaedaphne calyculata in the literature. Therefore, the aim of this study was to propose a propagation protocol for leatherleaf via indirect organogenesis using leaves and stems (internodal segments) derived from mature plants growing in a natural stand and from plants grown in vitro as explants. The medium developed by Anthony et al. (2004) with 100%, 50% and 25% salt concentrations, supplemented with IAA (5 and 10μM) and TDZ (5 and 10μM), was used for callus development and the induction of adventitious shoots. The media developed by Anthony et al. (2004) and Anderson (1980), both containing 10μM TDZ and 5μM IAA or 2.28μM zeatin, were used for adventitious shoot elongation. Secondary explants proved to be the most effective starting material for callus induction, the regeneration and elongation of adventitious shoots. The most supportive medium for callus induction and growth and the induction of adventitious shoots was the full medium proposed by Anthony et al. (2004) containing 5μM IAA and 10μM TDZ. Anderson’s (1980) medium containing 2.28μM zeatin delivered optimal results in the elongation of adventitious shoots of Ch. calyculata. Roots were cultivated on Anderson’s (1980) phytohormone-free medium. Approximately 65% of the plantlets survived after transfer to the sphagnum-peat and perlite mixture (3:1). The plants grew normally without any signs of morphological variation. This study makes the first ever attempt to propose an effective micropropagation protocol for Ch. calyculata.
EN
An extremely endangered population of Viola uliginosa Besser at the classical locality of this taxon has been studied. The AFLP analysis was based on 18 specimens of V. uliginosa (about 10% of preserved individuals); additionally, two individuals of V. riviniana were included in the data set as the out group. A high genetical uniformity of the whole population (similarity indexes close to 1) was detected. It was not correlated significantly with the spatial distribution of the plants. The study serves as a basis for practical conservation measures and at the same time as a starting point for a more extensive research on the genetical variability of the species throughout its range.
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