Elşad Hüseyin

Discovery of Thecaphora schwarzmaniana on Rheum ribes in Iran and Turkey: implications for the diversity and phylogeny of leaf smuts on rhubarbs

A leaf smut discovered on wild rhubarb Rheum ribes in Iran and Turkey is evaluated to identify the species. Based on morphological analyses using light and scanning electron microscopy and molecular phylogenetic analyses using ITS and LSU ribosomal DNA sequences, it is shown that the smut fungus belongs to Thecaphora schwarzmaniana, a rare species previously known on Rheum cordatum, R. lobatum, R. macrocarpum, and R. turkestanicum in some central Asian countries. This is the first documented case of Thecaphora schwarzmaniana on Rheum ribes and significantly expands the range of the species on the Asian continent. The ITS and LSU sequences of the Iranian and Turkish material differed from sequences of Thecaphora schwarzmaniana from Rheum palmatum from China. The re-study of the morphology of the respective specimen revealed morphological differences allowing the conclusion that Thecaphora on Rheum palmatum belongs to a distinct species. The new species is not described here due to the paucity of available material. Molecular phylogenetic analyses, based on ITS and LSU sequences, recovered Thecaphora on Rheum spp. in a clade including species on host plants from diverse unrelated families, indicating that multiple inter-family host jumps took place in the course of evolution of Thecaphora species. Vast similarity of ITS and LSU sequences of Thecaphora spp. on Rheum spp. point to their close relation suggesting that co-evolution could shape the diversification of Thecaphora species on Polygonaceae following an initial host jump from another host plant family.

Description of the rusts from Kemaliye (Erzincan, Turkey)

Twenty-two rust diseases caused by Melampsora euphorbiae, M. lini var. lini, Phragmidium mucronatum var. mucronatum, Ph. sanguisorbae, Gymnosporangium cornutum, G. confusum, G. tremelloides, Puccinia acarnae, P. annularis, P. eryngii, P. heterophyllae, P. hieracii, P. jasmini, P. menthae, P. nigrescens, P. pulverulenta, P. punctata, Uromyces dianthi, U. pisi-sativi, U. polygoni-avicularis, U. striatus and Pileolaria terebinthi were identified from Kemaliye (Erzincan) in Turkey. Puccinia heterophyllae is reported for the first time from Turkey.

Second record of Ramularia hypericicola - collected in Turkey on a new host.

Ramularia hypericicola, a rare anamorphic Mycosphaerella species, is reported and illustrated from Turkey on Hypericum calycinum. The Turkish collection represents the second report of this fungus, known hitherto only from the type locality.

Orman Fitosönozlarında Mikrofungusların Konsortif İlişkileri

Bu calismada mikrofunguslarin konsortif yapilari ve konukculari ile olan iliskileri hakkinda bilgi verilmistir. Ayrica, Ulkemizin kimi orman fitosonozlarinda yapilan tur teshis calismalarinin sonuclari da verilmistir. Buralarda tespit edilen mikrofunguslar konsortif acidan (indifferent, negatif, antogonistik ve pozitif) degerlendirilmistir. Orman fitosonozlarinda bulunan mikrofunguslarin teshisi ile elimizde bir tur listesi olusmaktadir. Ancak bu mikrofunguslarin konsortif iliskilerinin degerlendirilmesi, ormanlarimizin korunmasi ve devamliliginin saglanmasi bakimindan onemlidir.

Microfungi of forest ecosystems in Bartın province. I.

In this research the microfungi of Bartin forest ecosystems has been investigated. After revaluation of more than one hundred plant samples collected from the research area in September 16-17, 2012, 30 species belonging to 19 families and 26 genera of Ascomycota and Basidiomycota are determined. 26 species are belonging to Ascomycota and 4 species are belonging to Basidiomycota. 7 spesies of Ascomycota belonging to Sordariomycetes, 4 species belonging to Leotiomycetes while 15 are belonging to Dothideomycetes. All species belong to Xylotrophical and Phyllotrophical groups. 21 of 30 species are pathogens or parasites. 9 species are saprobiont. The genera Cheiromyces and Neosetophoma, C. stellatus, N. samararum, Phyllosticta ruscicola, Physalospora eriostega, Mycosphaerella winteri, Metasphaeria errabunda and Nectria wiridescens species are recorded for the first time for the Turkish Mycota