THAISZIA – JOURNAL OF BOTANY, Volume 16, 2006 – abstracts

Jurčák J., Látr A. & Čuříková M. (2006): Preliminary observation of fungal colonization in a rare orchid species (Epipactis pontica Taubenheim) in the Czech Republic. – Thaiszia – J. Bot. 16: 1-9. – ISSN 1210-0420.

Abstract: Infected and non-infected root tips of Epipactis pontica were examined to document morphological and anatomical organization. Histogenes (primary meristems) of the non-infected root tips were well developed. They included calyptrodermatogene, periblem and plerome. Typical organization of the histogenes of the infected root tips was not observed. The cells of the root cap were infected and lost their cellular integrity. Passage, host and digestion cells occurred at close distance from the root cap. A part of the infected cells of the calyptrodermatogene (the rhizodermis) and of the periblem (the primary cortex) appeared collapsed. Their remains together with soil particles and the hyphae are the base for the hyphal mantle, which is more or less preserved through the full length of the roots

Mistríková I. & Vaverková Š. (2006): Echinacea – chemical composition, immunostimulatory activities and uses. – Thaiszia – J. Bot. 16: 11-26. – ISSN 1210-0420.

Abstract: Immunostimulatory, anti-inflammatory, antioxidant and cicatrising activities are the main properties described, which make Echinacea useful in the treatment or the prevention of different pathological conditions. Nowadays is Echinacea used primarily to stimulate the immune system and to help prevent infections and colds. Echinacea is used less commonly as a topical preparation to enhance healing for minor wounds, eczema, burns, psoriasis, herpes, and other dermatologic conditions. It is also included in a number of dental and cosmetic preparations. Echinacea angustifolia DC, E. pallida (Nutt) Nutt., and E. purpurea (L.) Moench. are commercially important sources of phytopharmaceuticals and other medicinal preparations. This report will discuss the recent literature on Echinacea plants, focusing on their biochemistry and therapeutic applications as immunostimulants

Oťaheľová H. & Valachovič M. (2006): Diversity of macrophytes in aquatic habitats of the Danube River (Bratislava region, Slovakia). – Thaiszia – J. Bot. 16: 27-40. – ISSN 1210-0420.

Abstract: Species diversity and the distribution of macrophytes in aquatic habitats of the Danube River corridor in the Bratislava region were investigated. Based on environmental variables, four major types of water bodies were distinguished: i/ main channel (eupotamal), ii/ open oxbows (parapotamal), iii/ separated water bodies (plesiopotamal), iv/ the Hrušov Reservoir (modified eupotamal). From the total amount of 39 hydrophytes, only 5 occurred in the Danube main channel. The most species richness (35) was found in separated water bodies, which differ especially by their management and history. It was confirmed, that with decreasing lateral hydrologic connectivity, the alfa-diversity of macrophytes increase (Tockner et al. 1999)

Rezanejad F. (2006): Differentiation of crystal-containing cells during anther development and crystal types in the anther of Petunia hybrid grandiflora. – Thaiszia – J. Bot. 16: 41-46. – ISSN 1210-0420.

Abstract: Calcium crystals are evident in many parts of anther. There is little literature about differentiation of crystal-containing cells and crystals formation during anther development. Flower buds collected from different developmental stages were fixed and studied. The results revealed that young anthers are tetrasporangiate and in each four corners, the primary parietal layer externally and primary sporogenous cells internally, arise from periclinal divisions of the archeosporial cells. In young anther, septum and connective cells contain calcium crystals as druse. At stomium, there is an arrangement of a band of 8- 14 cells just beneath the epidermis which densely stain and lack visible vacuoles. During the division of sporogenous cells and formation of crescent shaped tissue, no crystals are seen in hypodermal cells. In this stage, druse crystals become larger in connective tissue. While meiosis is occurring, hypodermal cells of stomium are elongated but yet crystals are not observable. During pollen development, hypodermal cells degenerate and sand crystals appear. It seems that these crystals result from druse crystals

Soják, J. (2006): New infraspecific nomenclatural combinations in twelve American species of Drymocallis and Potentilla (Rosaceae) (Notes on Potentilla XVII.). – Thaiszia – J. Bot. 16: 47-50. – ISSN 1210-0420.

Abstract: Eleven American subspecies are transferred from Potentilla into Drymocallis. Thirteen nomenclatural combinations in the rank of variety in ten American species of Potentilla are proposed

Spałek K. (2006): Lindernia procumbens (Krocker) Philcox in SW Poland. – Thaiszia – J. Bot. 16: 51-57. – ISSN 1210-0420.

Abstract: During years 1998-2002 special studies on the distribution and conditions of occurrence of Lindernia procumbens were carried out within the Opole Silesia region in SW Poland. A detailed list of locations based on literature data and new observations of Lindernia procumbens are presented. Until now, Lindernia procumbens has been noticed in five localities within borders of the region. Recently this species has been found at three new stands.

Kundu, S. R. (2006): A synopsis of Annonaceae in Indian subcontinent: Its distribution and endemism. – Thaiszia – J. Bot. 16: 63-85. – ISSN 1210-0420.

Abstract: The members of the family Annonaceae are distributed throughout the tropical evergreen forests of America, Asia to Australia mainly centered in old World tropics. In Indian subcontinent (comprising of Bangladesh, Bhutan, Myanmar, Nepal, Pakistan, SriLanka and India), it is well represented (74.50% of the total taxa). The present paper deals with distribution, phytoendemism, possible fossil ancestry, potential survival threat on existing taxa etc. of Annonaceae in Indian subcontinent.

Kirschner J. & Rad M. A. (2006): Luzula stenophylla – A new species in the Iranian flora. – Thaiszia – J. Bot. 16: 87-92. – ISSN 1210-0420.

Abstract: A summary of taxonomy, nomenclature, relationships and distribution of Luzula (sect. Luzula) stenophylla Steud. is given. A considerable range extension represented by two new localities of Luzula stenophylla Iran is briefly discussed. The two localities (a new species record in Iran) are found in the Sabalan Mtns, Ardabil Province, and Mt. Khash-e Chal in the Elburz Range, Mazandaran Province.

Soják, J. (2006): Two new American species of Potentilla (Rosaceae). (Notes on Potentilla XXIII.). – Thaiszia – J. Bot. 16: 93-97. – ISSN 1210-0420.

Abstract: Two new North American species of Potentilla have been found in collections of NY and ALA. P. psychrophila is a hybrid derivative of sect. Niveae × sect. Pensylvanicae, and P. johnstonii is close to P. concinna.

Szentmihályi K, Marczal G. & Then M. (2006): Medicinal plants in view of trace elements. – Thaiszia – J. Bot. 16: 99-107. – ISSN 1210-0420.

Abstract: The use of herbs in different indication fields is well known. The beneficial properties of plants may due to their organic agents and inorganic mineral elements. Measurement of trace element content in plant drugs may be relevant in view of e.g. human health, animal health and environmental relations. This fact has a great significance since about half of the plant drugs available in the trade originate from natural habitat. The element content of herbs may refer to soil pollution, soil type on which the plant grow up or air pollution.

Vona M., Falusi E. & Penksza K. (2006): Examination of the soil-plant relations on the Galgahévíz peaty meadow (Hungary), effects of nature conservation measures on the vegetation. – Thaiszia – J. Bot. 16: 109-119. – ISSN 1210-0420.

Abstract: The studied area of the fen meadow is situated in the Central Hungarian Region, 46 km East of Budapest, in the vicinity of Galgahévíz and Hévízgyörk villages. Continuous botanical and pedological investigations have been made here and the area has been mowed regularly since 2004 as part of the conservation management methods. As a result of regular mowing, even if practiced only for two years so far, reed area has shrunk from the most valuable association stands and the amount of invasive plant species has also decreased. The area has constantly been enlarged at the expense of reed and changes of vegetation have been followed up with regular series of monitoring by authors. During observations at landscape scale influential components of the surroundings are also estimated.

Školek J. (2006): The Association Festucetum tatrae Szafer, Pawłowski et Kulczyński 1923 corr. 1927 in the Western Carpathians. – Thaiszia – J. Bot. 16: 121-130. – ISSN 1210-0420.

Abstract: The paper deals with the ecological, phytocoenological and environmental characteristics of the association Festucetum tatrae on the basis of an evaluation of the synoptic table constructed from basic up-to-date published phytocoenological data. This work also presents geographic variants of the mentioned association which have resulted from the assessed regional differencies of the floristic and phytocoenological structure. The variants are as follows: the variant with Thesium alpinum in the Low Tatras, variant with Aster alpinus in the Choč Mountains, variant with Carex humilis + Allium ochroleucum in Slovak Paradise, variant with Daphne arbuscula in the Muráň Plain and variant with Hieracium caesium in the Polish Tatras.

Kolarcik V. & Mártonfi P. (2006): Revision of the distribution of the genus Onosma (Boraginaceae) in Slovakia. – Thaiszia – J. Bot. 16: 131-154. – ISSN 1210-0420.

Abstract: The distribution of the endangered species of Slovak flora from the genus Onosma, O. arenaria, O. pseudoarenaria, O. visianii and O. tornensis, was revised. The chorological data show that the number of localities of three species decreased in last years, especially that of the species O. pseudoarenaria. The exception is O. tornensis, the number of localities of which is constant. However, the number of individuals in populations decreased, too. O. visianii is still the most frequent species in Slovakia.