VOLUM OMAGIAL - Facultatea de Ştiinţe ale Naturii şi Ştiinţe Agricole

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Limitative mycotic factors from some plants.../ Ovidius University Annals of Biology-Ecology 14: 3-15 (2010) meyeri, Onosma rigidum, Potentilla taurica, Rhagadiolus stellatus, Scilla bithynica, Sherardia arvensis L. subsp. maritima etc. Some plants are extremely important from the sozological point of view, taking into consideration that they are in contact with new climatic conditions being subjected to the eventual speciation phenomena. It will be the case of Astragalus cornutus, Beta trigyna, Carduus pycnocephalus, Euphorbia dobrogensis, Medicago arabica, Pimpinella peregrina, Plumbago europaea, Ranunculus oxyspermus, Rumex tuberosus subsp. tuberosus, Scilla bithynica etc. Some fungi can have a certain play in diminishing the population of some weeds, contributiong this way to the diminution of the damages they produce, such as Amaranthus retroflexus, Avena fatua, Bassia scoparia, Carduus acanthoides, Lycium barbarum, Malva sylvestris, Picris echioides (carantin plant), Rumex patientia etc. I collecting some alien fungi with invasiv character in present (Puccinia malvacearum, Erysiphe mougeotii, Puccinia helianthi) or in future (Puccinia komarovii, Puccinia pelargonii-zonalis). The hyperparasite Ampelomyces quisqua-lis, also contributes the diminution of the damnages produced by some mildew, there have been registered some cases. Last but not least, we consider that the fungi have their right to live. 4. Conclusions. From the 115 fungi collec-ted from the seaside of the Bulgarian Dobrogea, the most majority are plants parasites. Most of them belong the groups: Peronsporales, Erysiphaceae, Uredinales and Fungi Anamorphici. The results are important ones: a new adventitious parasite rust for the Bulgarian mycobiota and a number of 50 combinations from Bulgaria apparently not odentiofied in their form by now. We ascertained that following a long coexistence, between fungi and their hosts, the plants, there has been created a rather stable equilibrium. 4 LIST OF SPECIES PERONOSPORALES Albugo amaranthi (Schwein.) O. Kuntze (Wilsonia bliti (Biv.) Thines), matrix: Amaranthus retroflexus L. - Camen Briag, centrum, in locis ruderalis, 43º27′20.83″N, 28º33′04.63″E, alt. circa 35m, 23 X 2008, G. Negrean (11.594) [BUC]. Cavarna S, prope hotel, in locis ruderalis, 43º21′17.41″N, 28º21′17.41″E, alt. circa 30 m, 10 VIII 2008, G. Negrean (11.484) [BUC]. Albugo candida (Pers.) Roussel, matrix: Alyssum desertorum Stapf - Bălgarevo E, Cap Caliacra W 2 km, in herbosis et petrosis, 14 IV 2006, G. Negrean (7065c) [BUC]. Alyssum hirsutum Bieb. - Duranculac E, ad littore Mare Nigrum, in locis ruderalis, 43º41′908″N, 28º34′300″E, alt. circa 5 m, 11 IV 2008, G. Negrean (10.220) [BUC]. Camelina rumelica Velen. - Cavarna E, in herbosis, 12 IV 2008, G. Negrean (10.256) [BUC]. Capsella bursa-pastoris (L.) Medicus - Balcic, centrum, in cortis moscheii, ruderal, 13 IV 2006, G. Negrean (7043) [BUC]. Balcic, centrum, ruderal, 4 VI 2006, G. Negrean (7252) [BUC]. Sofija S, prope Hotel Vitosha (N), ruderal, 24 VI 2006, G. Negrean (7370). Clypeola jonthlaspi L. - Bălgarevo E, ut Cap Caliacra, in herbosis, 14 IV 2006, G. Negrean (7072a) [BUC]. Cavarna E, in herbosis, 43º24′25.14″N, 28º22′19.22″E, alt. circa 60 m, 12 IV 2008, G. Negrean (10.291) [BUC]. Sisymbrium loeselii L. - Sofija S, prope Univ. Technica, 21 VI 2006, G. Negrean (7323) [BUC]. Sofija S, prope Hotel Vitosha (N), ruderal, 24 VI 2006, G. Negrean (7382) [BUC]. Sisymbrium orientale L. s. l. - Duranculac E, ad littore Mare Nigrum, in locis ruderalis, 43º41′908″N, 28º34′300″E, alt. circa 5 m, 9 V 2008, G. Negrean (10.436) [BUC]. Albugo portulacae (DC. ex Duby) O. Kuntze, matrix: Portulaca oleracea L. subsp. oleracea - Sozopol, in arenosis, 42º24′05.22″N, 27º42′33.32″E, alt. circa 15 m, 9 VIII 2008, G. Negrean (11.888) [BUC].
Gavril Negrean/ Ovidius University Annals of Biology-Ecology 14: 3-15 (2010) Albugo tragopogonis (DC.) Gray, matrix: Xeranthemum annuum L. - Cavarna E, in herbosis, 43º24′25.14″N, 28º22′19.22″E, alt. circa 60 m, 12 IV 2008, G. Negrean (11.504) [BUC]. Ecrene N, ad oram rivuli Batova, in arenosis, 43º21′10.43″N, 28º04′31.74″E, alt. circa 2 m, 13 IV 2006, G. Negrean (7050) [BUC]. Bremia lactucae Regel, matrix: Carduus acanthoides L. - Bălgarevo E, Cap Caliacra, vers E, ut Mare Nigrum, in herbosis ruderalis, 15 IV 2006, G. Negrean (7074a) [BUC]. Cavarna SW, Bojorets S, Caliacria, in locis ruderalis, 43º25′03.47″N, 28º16′48.25″E, alt. circa 46 m, 22 X 2008, G. Negrean (11.521) [BUC]. Picris echioides L. - Camen Briag, in locis ruderalis, 43º27′18.92″N, 28º33′14.19″E, alt. circa 35 m, 23 X 2008, G. Negrean (11.551) [BUC]. Rhagadiolus stellatus (L.) Gaertn. - Rusalca, sub platous prope littore Mare Nigrum, in abruptis et silvis, 43º24′733″N, 28º29′780″E, alt. circa 60 m, 10 V 2008, G. Negrean (10.459) [BUC]. Crepis pulchra L. - Bălgarevo E, Cap Caliacra N, sinistra vallis Bolata-Dere, in herbosis, 43º22′59.37″N, 28º28′18.08″E, alt. circa 2 m, 4 VI 2006, G. Negrean (7397) [BUC]. Hyaloperonospora parasitica (Pers.: Fr.) Constant., matrix: Alyssum desertorum Stapf - Bălgarevo E, Cap Caliacra W 2 km, in herbosis et petrosis, 14 IV 2006, G. Negrean (7065b) [BUC]. Hyaloperonospora tribulina (Pass.) Constant. (Peronospora tribulina Pass.), matrix: Tribulus terrestris L. - Cavarna SW, Caliacria, in locis ruderalis, 43º25′03.47″N, 28º16′48.25″E, alt. circa 46 m, 22 X 2008, G. Negrean (11.511) [BUC]. Peronospora aestivalis H. Syd., matrix: Melilotus sp. - Balcic W, in herbosis, 3 VI 2006, G. Negrean (7225) [BUC]. Peronospora alsinearum Casp., matrix: Stellaria media (L.) Vill. s. l., Ecrene N, ad oram rivuli Batova, 43º21′10.43″N, 28º04′31.74″E, alt. circa 2 m, 13 IV 2006, G. Negrean (7820) [BUC]. Peronospora alta Fuckel, matrix: Plantago major L. subsp. major, Sofija S, prope Hotel Moskva, 22 VI 2006, G. Negrean (7328) [BUC]. Peronospora arborescens (Berk.) de Bary, matrix: 5 Papaver dubium L. - Bălgarevo E, Cap Caliacra, vers E, ut Mare Nigrum, in herbosis ruderalis, 43º22′03.97″N, 28º27′57.08″E, alt. circa 25 m, 15 IV 2006, G. Negrean (7079) [BUC]. Peronospora astragalina Syd., matrix: Astragalus hamosus L. - Crapetz E, prope Cap Crapetz, solo arenoso, 43º38′23.64″N, 28º34′25.86″E, alt. circa 6 m, 12 IV 2008, G. Negrean (10.242) [BUC]. Peronospora calotheca de Bary, matrix: Galium aparine L. - Crapetz E, prope Cap Crapetz, solo arenoso, 43º38′23.64″N, 28º34′25.86″E, alt. circa 6 m, 12 IV 2008, G. Negrean (10.246) [BUC]. Bălgarevo SE, Vallis Bolata, ad saxa calcarea, solo terra-rossa, 43º22′59.77″N, 28º28′20.77″E, alt. circa 15 m, 12 IV 2008, G. Negrean (10.270) [BUC]. Peronospora conglomerata Fuckel, matrix: Erodium ciconium (L.) L’Herit. - Cavarna S, in arenosis, sub Collina Cheracman, 12 IV 2008, G. Negrean (10.241) [BUC]. Cavarna SW, Bojorets S, Caliacria, in locis ruderalis, 43º25′03.47″N, 28º16′48.25″E, alt. circa 46 m, 22 X 2008, G. Negrean (11.588) [BUC]. Peronospora farinosa (Fr.) Fr., matrix: Bassia scoparia (L.) A. J. Scott, Sofija S, cartier S, ruderal, 22 VI 2006, G. Negrean (7330) [BUC]. Chenopodium album (Boiss.) Kuntze - Camen Briag, Motel, in locis ruderalis, 43º27′13.83″N, 28º33′04.96″E, alt. circa 25 m, 7 VI 2008, G. Negrean (10.707) [BUC]. Chenopodium opulifolium Schrad. ex Koch & Ziz - Cavarna S, prope hotel, in locis ruderalis, 43º21′17.41″N, 28º21′17.41″E, alt. circa 30 m, 10 VIII 2008, G. Negrean (11.484) [BUC]. Peronospora ficariae L.R. Tul. ex de Bary, matrix: Ranunculus ficaria L. subsp. calthifolius (Reichenb.) Arcangeli - Balcic W, in locis umbrosis, 15 IV 2006, G. Negrean (7090) [BUC]. Peronospora medicaginis-minimae Gaponenko, matrix: Medicago lupulina L., Sofija S, prope Hotel Vitosha, ruderal, 22 VI 2006, G. Negrean (7321) [BUC]. Peronospora sherardiae Fuckel, matrix: Sherardia arvensis L. subsp. maritima (Griseb.) Soják - Bălgarevo E, Cap Caliacra, in herbosis, 43º22′03.97″N, 28º26′57.08″E, alt. circa 25 m, 12
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VOLUM OMAGIAL - Facultatea de Ştiinţe ale Naturii şi Ştiinţe Agricole

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