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Ovidius University Annals of Natural Sciences, Biology – Ecology Series, Volume 14 (2010) The present situation of the nose horned viper populations (Vipera ammodytes montandoni Boulenger 1904) from Dobrudja (Romania and Bulgaria) Marian TUDOR……………………………………………………………………………………………… Body size variation in Rana temporaria populations inhabiting extreme environments Rodica PLĂIAŞU, Raluca BĂNCILĂ, Dan COGĂLNICEANU…………………………………………… Utilization of epifluorescence microscopy and digital image analysis to study some morphological and functional aspects of prokariotes Simona GHIŢĂ, Iris SARCHIZIAN, Ioan ARDELEAN……………………………………………………. Changes in bacterial abundance and biomass in sandy sediment microcosm supplemented with gasoline Dan Răzvan POPOVICIU, Ioan ARDELEAN................................................................................................. The formation of bacterial biofilms on the hydrophile surface of glass in laboratory static conditions: the effect of temperature and salinity Aurelia Manuela MOLDOVEANU, Ioan I. ARDELEAN............................................................................... The clinical utility of additional methods in effusions evaluation Ana Maria CREŢU, Mariana AŞCHIE, Diana BADIU, Natalia ROŞOIU………………………………….. Spatio-temporal dynamics of phytoplankton composition and abundance from the Romanian Black Sea coast Laura BOICENCO…………………………………………………………………………………………… Aspects regarding the biodiversity of the aquatic and semi-aquatic heteroptera in the lakes situated in the middle basin of the Olt River Daniela Minodora ILIE..................................................................................................................................... Program of prevention and control of fungus infestation of grain and fodder, human and animal protection against mycotoxins Ioan Aurel POP, Augustin CURTICĂPEAN, Alin GULEA, Cornel PODAR, Iustina LOBONTIU.............. Data on the dynamics of some microbial groups in soils with different trophic status in Cumpăna region (Dobrudja) Elena DELCĂ………………………………………………………………………………………………... The agricultural potential of phosphogypsum waste piles Lucian MATEI……………………………………………………………………………………………….. 115 121 127 139 147 157 163 171 177 181 185
Ovidius University Annals of Natural Sciences, Biology – Ecology Series Volume 14, 2010 LIMITATIVE MYCOTIC FACTORS FOR SOME PLANTS FROM THE BULGARIAN COAST OF THE BLACK SEA Gavril NEGREAN Universitatea din Bucureşti, Grădina Botanică, Şoseaua Cotroceni nr. 32, Bucureşti __________________________________________________________________________________________ Abstract: We present a list of 119 parasitic fungi collected in Bulgaria from the following groups: Peronosporales, Ascomycetes, Uredinales, Ustilaginales, Agaricales, Polyporales, Gasteromycetales and Fungi Anamorphici. An alien rust new for Bulgaria is also found (Puccinia komarovii). There are also some commentaries regarding the rare plants guested by different fungi; other fungi may contribute to the diminishing of the damages produces by some weeds; we draw attention about some foreign fungi with invasive character. Keywords: New parasitic fungi for Bulgaria, invasive fungi, matrix nova, Dobrogea, Bulgaria. __________________________________________________________________________________________ 1. Introduction. Following our preoccupa-tion regarding the limitative factors for the vascular plants on the Black Sea, we present the results of our investigations on the Bulgarian Dobrogean Black Sea side. Our observations from the previous years were published within several notes [1, 2, 3, 4, 19]. 2. Material and Methods. The fungi were collected from the areas nearby the sea side between Duranculac and the embouchure of the Batovo valley, in April and June 2006 and April – October 2008. A very small amount of fungi collectetd from other areas of Bulgaria, they also listed. The big majority are coming from the Dobrich district. The materials were collected on the way and their conditioning was donje in conformity with the usual techniques and determinated by help of the instruments we had at our disposal [5, 6, 7, 8, 9, 10, 11, 12, 13, 14]. The nomenclature of the authors of the hosts after Flora Romaniae [15] and Flora Europaea [16, 17]. The conditionated and determined materials were deposited in the Herbarium of the University from Bucureşti [BUC] and partially in the Herbarium of the Botanic Institute from Sofija [SOM]. The list is alphabetically coordinated, on big groups offungi and the coronims from North to South. 3. Results and Discussions In these two years mentioned, there were collected 217 specimens, representing the analized groups of fungi (Table 1). Apparently, a number of 16 combinations fungus – host plant („matrix nova”), incase of the Peronosporales (Table 2), and were not indicated since Bulgaria [14]. Among Erysiphaceae, 19 combinations [8], alike species have not been found in Bulgaria. Likewise, a number of 15 combinations between Uredinales [7] do not seem to be cited from Bulgaria. Puccinia komarovii rust, guesting the alien plant Impatiens parviflora DC. is new for the Bulgarian mycobiota. Sozological aspects. Following a long cohabitation (co evolution) between fungi and their hosts there has been created an equilibrum, so that we have barely noticed ruptures of this equilibrum. Among the rare guested plants, we mention the following: Astragalus cornutus (important damages locally), Buglossoides arvensis subsp. sibthorpiana, Centaurea salonitana, Centaurea thracica, Clypeo-la jonthlaspi, Dianthus leptopetalus, Euphorbia myrsinites, Gypsophila pallasii, Hieracium bauhinii, Leymus racemosus subsp. sabulosus, Limonium ISSN-1453-1267 © 2010 Ovidius University Press
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VOLUM OMAGIAL - Facultatea de Ştiinţe ale Naturii şi Ştiinţe Agricole

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