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1

Population structure of a clonal endangered plant species Iris sibirica L. in different habitat conditions

100%

Kostrakiewicz K.

Polish Journal of Ecology

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2008

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tom 56

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nr 4

581-592

The investigations of structure of the genets and populations of Iris sibirica L. were carried out in the period 1999–2002. The studies were conducted in Molinietum caeruleae patches localized in Southern Poland. The patch labelled MW (“more wet”) measured 5,600 m² and was chracterised by presence of large depressions filled with stagnant water, concentrated chiefly in the central part of the site. In this locality species with a high competitive potential (like Phagmites australis Trin., Chamanerion angustifolium (L.) Scop., Epilobium hirsutum L., Filipendula ulmaria (L.) Maxim. and others) prevailed. The patch called LW (“less wet”) measured 1,800 m² and was characterised by small number of depressions scattered throughout the site. In this locality dominated the plants of minor competitive abilities (like Lathyrus pratensis L., Lotus corniculatus L. and others). The spatial pattern of populations was described on the basis of the locations of all ramet clusters in 100 m² square plots. Each ramet cluster was attributed to a developmental stage. The differences in height of ramets between stages was estimated on the basis of lenght of the tallest leaf and generative shoot measured in all genets and ramet clusters in both populations (30 leaves and all generative shoots in 5 clusters of ramet at generative and senile stages and 4 – at fragmentation phase in both populations). In study year 2000 Iris sibirica population in LW locality was consisted of 26 ramet clusters and showed an aggregation structure, while population growing in MW site was consisted of 502 ramet clusters and presented the group-aggregation spatial structure constituted by groups of dozen or so ramet clusters, forming large aggregations. Both populations showed signs of senility in effect of absence of genets in prereproductive stages. In 2001 and 2002 the seedlings and juvenile genets appeared only in artificially made gaps. The genets in initial stage are much lower (about 40 %) than older ones and the ramet in MW locality reached greather height (6 to 23%) than in LW site. The evaluation of structure of populations taken as indicator of their vitality, show that the population from less wet locality was in better condition despite of low abundance. Domination of ramet cluster at generative stage and vicinity of plants with low competitive potential enables longer existence of Iris sibirica in occupied site. In more wet locality the I. sibirica population is worse equiped to survive. Advanced senility and the vicinity of plants with high competitive potential might inhibit the proliferation of I. sibirica ramet clusters, accelerate their fragmentation or even eliminate from occupied site.

2

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Conservation of the endangered medicinal plant Picrorhiza kurroa through in vitro multiple shoot regeneration

86%

Chaudhary V., Singh S., Sharma R., Singh A., Sharma N.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2019

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tom 100

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nr 3

3

The distribution of Carex hartmanii Cajander in Poland

86%

Sotek Z.

Acta Societatis Botanicorum Poloniae

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2008

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tom 77

|

nr 4

323-326

The distribution of Carex hartmanii Cajander in Poland is described based on herbarium materials and supplemented by literature information and unpublished data. The brief description of its taxonomic characteristics, habitat and general distribution is also included.

4

New data on the distribution of Arabis recta [Brassicaceae] in Poland

86%

Nobis M., Kozak M., Bartoszek W.

Polish Botanical Journal

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2007

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tom 52

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nr 2

119-123

5

The distribution of Arum maculatum L. [Araceae] in Poland

86%

Dajdok Z., Kacki Z.

Acta Societatis Botanicorum Poloniae

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2001

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tom 70

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nr 2

6

Is Viola uliginosa critically endangered in Poland? - new data on the distribution of the species

72%

Krawczyk R., Nobis A., Nobis M., Cwener A.

Acta Societatis Botanicorum Poloniae

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2008

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tom 77

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nr 4

345-349

Viola uliginosa Besser is a European species mainly known from the Baltic Region. It is endangered in a significant part of its range. Research carried out in the southeastern part of Poland led to the discovery of numerous sites of Viola uliginosa. Fourteen new localities of this species were found in the area of the Kotlina Sandomierska basin. This paper presents information concerning the localization of all new sites, the abundance of Viola uliginosa at the sites and habitats this species occupies. A discussion regarding the endangered status of this species in the Polish flora is given.

7

Influence of initial light intensity and deer browsing on Taxus baccata saplings: a six years field study

72%

Iszkulo G., Nowak-Dyjeta K., Sekiewicz M.

Dendrobiology

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2014

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tom 71

European yew (Taxus baccata L.) is a rare species, but is the focus of great interest because of the species recovery attempts and its use in medicine. The aim of this study was to determine the optimum conditions for the development of the young generation of this species. Four-year old yew seedlings were grown under artificial light reduction: 2, 8, and 30%, as well as in full light. The seedlings were then planted in natural conditions in fenced and unfenced areas. The results of six years field studies indicated that the greatest impact on survival was shown by the light conditions from the period before planting under the canopy of trees. Seedlings from the 2 and 8% of light showed the greatest mortality. The reason was the sudden change in light conditions, because at the time of planting (early spring), there was no reduction of light under deciduous trees. Almost all of the unfenced yew seedlings were grazed by deer, but yew survival in the unfenced group was surprisingly high despite the permanent grazing. This was explained by the high resistance of yew to cutting and the protection of seedlings by a dense layer of Rubus. The results indicated that yew trees require protection against animals for normal development, even if animals have not previously had contact with Taxus and that yew seedlings are very sensitive to sudden changes in light. Both conclusions can be applied in the development of natural and artificial regeneration of European yew and other endangered plants.

8

Seed productivity in relation to other shoot features for endangered parasitic plant Orobanche picridis F.W. Schultz (Orobanchaceae)

72%

Piwowarczyk R.

Polish Journal of Ecology

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2013

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tom 61

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nr 1

Parasitic plants species of the genus Orobanche produce a very high number of small dust-like seeds. The seed shape of Orobanche sp. is ellipsoid to globose, ca. 0.3 × 0.4 mm. Orobanche picridis F.W. Schultz is a sub-Mediterranean-sub-Atlantic species. It has the NE range limit in Poland and Ukraine. The species is seriously endangered in Poland and neighbouring countries. O. picridis occurs only in southern Poland (34 localities). It prefers habitats on chalky rendzina, especially S-facing. It colonizes abandoned fallows and wastelands, field margins, initial xerothermic grasslands. They are mostly ecotone communities, in semi-ruderal xerothermic pioneer communities belonging to the Dauco-Picridetum (Artemisietea vulgaris class). The aim of this study was to determine potential and real seed productivity in Orobanche picridis and correlations between the characteristics of the shoots. Research hypothesis is to show that the studied traits of shoots show the highest correlation with the production of seeds. The paper presents investigations into potential and real seed productivity of Orobanche picridis for the first time. Investigations were conducted in 2010 at three most abundant localities of O. picridis in southern Poland in the Wyżyna Małopolska upland (S Poland) - Wesołówka (Przedgórze Iłżeckie foreland), Pińczów, and Pęczelice (Niecka Nidziańska basin). Research into the number of seeds produced per fruit and per shoot is discussed. Strict correlations between seed productivity and shoot features, i.e. shoot height, inflorescence length, number of fruits and corolla tube length were observed. The number of seeds in a single ovary in O. picridis varied and ranged from 457 to 3 246. The mean number of seeds per shoot is 55 172 based on the data collected at the three sites and ranges between 8 911 and 151 050. Seed productivity depends significantly on the size of a plant, that is on the shoot height, correlation coefficient r = 0.7, inflorescence length, r = 0.6, number of flowers and fruits per plant, r = 0.6, and on the flower size, r = 0.5.

9

Different patterns of genetic structure of relict and isolated populations of endangered peat-bog pine [Pinus uliginosa Neumann]

72%

Wachowiak W., Prus-Glowacki W.

Journal of Applied Genetics

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2009

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tom 50

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nr 4

329-339

Recent changes in environmental conditions in populations of peat-bog pine (Pinus uliginosa Neumann) caused rapid decline or even extinction of the species in several stands in Central Europe. Conservation strategies for P. uliginosa require information about the evolutionary history and genetic structure of its populations. Using isozymes we assessed the genetic structure of P. uliginosa from four isolated stands in Poland and compared the results to genetic structures of other closely related pine species including eight populations of Pinus mugo, ten of Pinus sylvestris and one of Pinus uncinata. The level of genetic variability of P. uliginosa measured by the mean number of alleles per locus and average heterozygosity was similar to others related to P. uliginosa taxa from the reference group but it differs among populations. High genetic similarity was found between two populations of P. uliginosa from Low Silesian Pinewood. The populations were genetically distinct as compared to other populations including locus classicus of the species from the peat bog at Batorów Reserve. Very low genetic distance (DN = 0.002) and small genetic differentiation (GST = 0.003) were found between P. uliginosa and P. mugo in the sympatrie populations of the species from Zieleniec peat bog suggesting the ongoing natural hybridisation and genetic contamination of peat-bog pine from this area. Some evidence for skew in allele frequency distribution potentially due to recent bottleneck was found in population from Low Silesian Pinewood. The analysed open pollinated progeny derived from two P. uliginosa stands from Low Silesian Pine- wood showed the excess of homozygotes as compared to the maternal trees indicating high level of inbreeding (F =0.105,F = 0.081). The results are discussed in the context of evolution of P. uliginosa populations, taxonomie relationships between the analysed species and conservation strategies for active protection of peat-bog pine.

10

Asymbiotic germination, seedling development and plantlet propagation of Encyclia aff. oncidioides - an endangered orchid

72%

Znaniecka J., Krolicka A., Sidwa-Gorycka M., Rybczynski J. J., Szlachetko D. L., Lojkowska E.

Acta Societatis Botanicorum Poloniae

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2005

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tom 74

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nr 3

In order to estimate the best germination conditions of Encyclia aff. oncidioides seeds, five different media (Fast, Knudson C modified by Vajrabhaya, Murashige and Skoog, PB2 and modified Vacin and Went) with different concentrations of plant growth regulators such as benzyladenine (BA), naphthaleneacetic acid (NAA) and gibberellic acid (GA3) were tested. No beneficial effect was observed when BA and NAA were applied to the germination medium and GA3 inhibited germination. The effect of light, activated charcoal, coconut water and casein hydrolysate on seed germination was also studied. The growth rate of seedlings on three different media supplemented with activated charcoal and plant growth regulators was checked. The applied plant growth regulators had no beneficial effect on the further growth of seedlings. Fast and PB2 media with 0.2% activated charcoal proved to be the best for E. aff. oncidioides seed germination, seedling development and plantlet propagation.

11

Arbuscular mycorrhiza of endemic and endangered plants from the Tatra Mts

72%

Zubek S., Turnau K., Blaszkowski J.

Acta Societatis Botanicorum Poloniae

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2008

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tom 77

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nr 2

The mycorrhizal status of 24 plant species considered as endemic, endangered in Poland and included in the IUCN Red List of Threatened Plants is reported. Selected plants and rhizosphere soil samples were collected in the Tatra Mts (Western Carpathians). Individuals of seriously threatened taxa were obtained from seeds and inoculated with available AM fungal strains under laboratory conditions. AM colonisation was found in 16 plants; 9 species were of the Arum-type, 4 - Paris and 3 taxa revealed intermediate morphology. The mycelium of the fine endophyte (Glomus tenue) and dark septate fungi (DSE) were observed in the material collected in the field. 20 AMF species (Glomeromycota) found in the rhizosphere of the investigated plants were reported for the first time from the Tatra Mts. The results provide information that might be useful for conservation and restoration programmes of these species. Application of AMF in active plant protection projects is discussed.

12

Soligenous wetlands of North-Western Poland as an environment for endangered mire species

72%

Wolejko L.

Acta Societatis Botanicorum Poloniae

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2002

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tom 71

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nr 1

13

Propagation of endemic and endangered Sternbergia lutea with a high ornamental value by bulb chipping and plant growth regulators

58%

Nazari F.

Acta Scientiarum Polonorum. Hortorum Cultus

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2019

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tom 18

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nr 2

Autumn daffodil (Sternbergia lutea) is a rare and endangered bulbous plant with yellow flowers grown naturally in Iran and unfortunately for different reasons this plant is at the risk of eradication. Natural multiplication rate of S. lutea is low, thus propagation by chipping method is one inexpensive and simple way to overcome this problem. This research was therefore performed to investigate the propagation method in two experiments. In the first experiment, the effects of some plant growth regulators (PGRs) on induction and regeneration of bulblets from bulb chips (propagules) were evaluated. The propagules were prepared by chipping method and treated with indole butyric acid (IBA), gibberellic acid (GA3), benzyl adenine (BA), kinetin (Kin) and cycocel (CCC) at 100 and 200 mg L–1 concentrations for 2 h and then incubated for two months at 20 ±1°C. At the end of incubation, the results showed the highest percentage of concurrent bulblet + root regeneration (CBRR), number and fresh weight of bulblets related to 100 mg L–1 GA3. The highest percentage of only bulblet regeneration (OBR), only root regeneration (ORR) and non-regeneration were obtained at 200 mg L–1 IBA, 100 mg L–1 Kin and control (distillated water: DW) treatments, respectively. In the second experiment, the bulblets that had rooted from each treatment of the first experiment were planted and the produced bulbs were compared. The results indicated that the highest percentage of bulblet sprouting, bulb number and diameter were found at 100 mg L–1 GA3. Therefore, the application of GA3 with mentioned concentration is appropriate for vegetative propagation of this plant by bulb chipping.

14

An improved procedure for in vivo and in vitro propagation of Buxus hyrcana, an ornamental shrub critically at risk of extinction

58%

Negahdar N., Hashemabadi D., Kaviani B.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2019

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tom 100

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nr 4

15

Micropropagation studies and antioxidant analysis of the endangered plants of Bulgarian yellow gentian (Gentiana lutea L.)

58%

Petrova M. I., Zayova E. G., Dimitrova L. I., Geneva M. P., Miladinova-Georgieva K. D.

Acta Scientiarum Polonorum. Hortorum Cultus

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2019

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tom 18

|

nr 3

In order to develop an efficient micropropagation system, it is essential to establish the appropriate concentration of growth regulators for seed germination, shoot formation and rooting. Nodal segments from in vitro obtained seedlings of Gentiana lutea L. were cultured in vitro in Murashige and Skoog’s medium supplemented with BAP, Thidiazuron and Zeatin (0.5, 1.0 and 2.0 mg L−1). A maximum number of shoots with the highest height was recorded at 2.0 mg L−1 BAP. For further optimization of the process, we used nutrient media containing BAP and Zeatin with a combination of low concentration of Indoleacetic acid. MS medium containing 2.0 mg L−1 Zeatin and 0.2 mg L−1 IAA resulted in maximum numbers of shoots 94.3) with shoot height 2.5 cm. The multiple plants were successfully ex vitro acclimatized with 65% survival. The presence of growth regulators (2.0 mg L−1 Zeatin and 0.2 mg L−1 IAA) in the nutrient media resulted in an effective antioxidant activity in G. Lutea determined by the low molecular antioxidant metabolites such as phenols and flavonoids and activities of antioxidant enzymes – catalase, ascorbate peroxidase, guaiacol peroxidase, and superoxide dismutase. The described protocol allows the establishment of numerous micropropaged plants of rare and endangered G. lutea.

16

Czy odnalezienie nowego stanowiska Asplenium viride HUDS. w Karkonoskim Parku Narodowym spowoduje zmianę regionalnej kategorii zagrożenia gatunku?

58%

Swierkosz K., Reczynska K.

Acta Botanica Silesiaca

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2013

|

tom 09

17

Nowe stanowisko tojadu mocnego morawskiego Aconitum firmum RCHB. subsp. moravicum Skalicky (Ranunculaceae) w Beskidzie Śląskim

58%

Wilczek Z., Zarzycki W.

Acta Botanica Silesiaca

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2014

|

tom 10

18

Polskie rosliny chronionre i ginace w kolekcjach Wroclawskiego Ogrodu Botanicznego

58%

Radziuk M., Wojcik G., Lenard E.

Prace Ogrodu Botanicznego Uniwersytetu Wrocławskiego

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1996

|

tom 03

377-385

19

Recruitment pattern of tree populations along an altitudinal gradient: Larix chinensis Beissn in Qinling Mountains [China]

58%

Duan R. Y., Wang X.-A., Tu Y.-B., Huang M.-Y., Wang C., Zhu Z.-H., Guo H.

Polish Journal of Ecology

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2009

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tom 57

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nr 3

451-459

Larix chinensis Beissn is an endangered plant found only in the Qinling Mountains, Shaanxi, northwestern China. It is densely distributed in the alpine and subalpine belt on their highest peak Taibai Mountain. Age structure studies along a montane altitudinal gradient would be helpful in understanding the limiting factors on the regeneration of natural forests. The forest was divided into three transects, i.e., lower limit (2900–3000 m), mid-altitude (3100–3200 m) and upper limit (3300–3400 m). The age structures differed across altitude classes. The age structure in the low altitude transect was closed to bell-shaped and characterized by the dominance of adult trees. A reverse-J shape age structure was found in the mid-altitude transect. Multi-modal age distribution was found in the high altitude transect, and was caused by lack of young seedlings and saplings. This suggests that different limiting factors play important roles in shaping the age structure and forest regeneration at different altitudes. In the low altitude, light availability was probably the most important limiting factor. In the mid-altitudinal transect, density dependent intraspecific competition between trees likely controlled regeneration of L. chinensis. We suggest that limiting climatic factors, e.g. temperature, play an important role in determining the age structure of L. chinensis populations in highaltitude areas.

20

The impact of neighbourhood and gap character on seedling recruitment of Trollius europaeus L. and Iris sibirica L. in Molinietum caeruleae meadows

58%

Kostrakiewicz-Gieralt K.

Biodiversity: Research and Conservation

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2012

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tom 28

Ograniczanie wyników

Population structure of a clonal endangered plant species Iris sibirica L. in different habitat conditions

Conservation of the endangered medicinal plant Picrorhiza kurroa through in vitro multiple shoot regeneration

The distribution of Carex hartmanii Cajander in Poland

New data on the distribution of Arabis recta [Brassicaceae] in Poland

The distribution of Arum maculatum L. [Araceae] in Poland

Is Viola uliginosa critically endangered in Poland? - new data on the distribution of the species

Influence of initial light intensity and deer browsing on Taxus baccata saplings: a six years field study

Seed productivity in relation to other shoot features for endangered parasitic plant Orobanche picridis F.W. Schultz (Orobanchaceae)

Different patterns of genetic structure of relict and isolated populations of endangered peat-bog pine [Pinus uliginosa Neumann]

Asymbiotic germination, seedling development and plantlet propagation of Encyclia aff. oncidioides - an endangered orchid

Arbuscular mycorrhiza of endemic and endangered plants from the Tatra Mts

Soligenous wetlands of North-Western Poland as an environment for endangered mire species

Propagation of endemic and endangered Sternbergia lutea with a high ornamental value by bulb chipping and plant growth regulators

An improved procedure for in vivo and in vitro propagation of Buxus hyrcana, an ornamental shrub critically at risk of extinction

Micropropagation studies and antioxidant analysis of the endangered plants of Bulgarian yellow gentian (Gentiana lutea L.)

Czy odnalezienie nowego stanowiska Asplenium viride HUDS. w Karkonoskim Parku Narodowym spowoduje zmianę regionalnej kategorii zagrożenia gatunku?

Nowe stanowisko tojadu mocnego morawskiego Aconitum firmum RCHB. subsp. moravicum Skalicky (Ranunculaceae) w Beskidzie Śląskim

Polskie rosliny chronionre i ginace w kolekcjach Wroclawskiego Ogrodu Botanicznego

Recruitment pattern of tree populations along an altitudinal gradient: Larix chinensis Beissn in Qinling Mountains [China]

The impact of neighbourhood and gap character on seedling recruitment of Trollius europaeus L. and Iris sibirica L. in Molinietum caeruleae meadows