IDENTIFICATION BY ISOZYMES OF 9 POPULATIONS OF TULIPA FROM GREECE

Two enzymatic systems: esterase and malate dehydrogenase were studied on nine populations of tulip from different parts of Greece and naturalized in Crete. The results showed that the analysis of esterase banding patterns permitted a clear distinction of the populations because esterase patterns were readily reproducible. The banding of malate dehydrogenase is poor and this isozyme permits a complementary distinction of populations

Floristic reports from the island of Lesvos (Greece) I. Dicotyledones: Aceraceae to Guttiferae

Floristic and phytogeographical information is presented in the first of three papers on the flora of Lesvos (East Aegean, Greece). The taxa included here are dicotyledons and belong to families in alphabetical order from Aceraceae to Guttiferae. Of the 92 taxa (79 species, 12 subspecies and one variety) presented, two are new for Greece, five are new for the Aegean islands as a whole, four are new for the East Aegean Islands and 13 are new for Lesvos. New distribution localities on the island are also given for some interesting taxa. Furthermore, the presence of 13 taxa, reported by previous authors without specific collection data, is confirmed. Critical comments are made on 22 taxa whose presence needs confirmation or is considered doubtful or wrong. Chorological, ecological and taxonomic comments are made for the more interesting cases and distribution maps for certain taxa in Greece or Lesvos are given. Finally, the threats and conservation status of some rare and interesting taxa are briefly discussed

Pteridophyte flora of Lesvos (East Aegean Islands, Greece)

New data on the Pteridophyta of Lesvos (East Aegean Islands, Greece) contributing to the knowledge of their distribution and ecology are given. The presence of 24 taxa (species and subspecies) belonging to 16 genera and 7 families is confirmed whilst the occurrence of 4 more previously recorded is considered as doubtful or needs more recent confirmation. Isoetes duriei Bory, Pilularia minuta Durieu and Polystichum setiferum (Forsskål) Woynar appear to be new records for the East Aegean Islands, and Isoetes histrix Bory is new for the island of Lesvos. Furthermore the presence on Lesvos of some rare species (i.e. Notholaena marantae (L.) Desv. and Ophioglossum vulgatum L.) is confirmed. Critical comments on most of the taxa are made and dot maps of their distributions are presented. With regard to the rare species and their habitats, a need for urgent conservation measures is identified

Vascular plant diversity of Mt Pendelikon (Sterea Ellas, Greece): A recent inventory reflecting contemporary dynamics

A detailed floristic study of the area of Mt Pendelikon in Sterea Ellas, Greece, in 1998 - 2009 resulted in the addition of 318 specific and infraspecific vascular plant taxa, which are reported here, to a present total of 1080 taxa. At least 41 adventives enriched the vascular plant diversity of the heavily urbanised area significantly as compared to previous sources. For each newly recorded taxon local distribution and habitat types are presented. Morphological, chorological and ecological comments are included where appropriate. Filago aegaea subsp. aristata is reported for the first time from the Greek mainland. Some of the new records are of taxa rare in Greece or of regional endemics and therefore chorologically, ecologically or taxonomically significant, such as Cephalaria setulifera, Chenopodium pumilio, Consolida tenuissima, Iberis saxatilis, Johrenia distans, Malcolmia africana, Muscari armeniacum, Narduroides salzmannii, Onosma kaheirei, Satureja parnassica subsp. hellenica, Silene oligantha subsp. parnesia and Teucrium montanum subsp. helianthemoides. © 2011 BGBM Berlin-Dahlem

Essential oils of leaves, inflorescences and infructescences of spontaneous Cotinus coggygria Scop. from Greece

The essential oils from the leaves, inflorescences and infructescences of Cotinus coggygria (Anacardiaceae) from three localities in Greece were analysed by GC-MS. Forty-nine components were characterized. Monoterpenes were the dominating chemical class in all the samples analysed. Copyright © 2005 John Wiley & Sons, Ltd

Volatile metabolites of Pistacia atlantica Desf. from Greece

The essential oils of leaves (from male and female plants), unripe fruits and leaf-buds of different samples of Pistacia atlantica collected from Greek East Aegean islands (Kalimnos and Lesvos) were analysed by GC-MS and GC. Qualitative and quantitative differences among the samples and different organs of the plant were observed. The oils were rich in monoterpenes. The main components in the leaf oil from the female plants were myrcene (17.8%, 24.8%) and terpinen-4-ol (11.6%, 6.0%) in the Kalimnos and Lesvos samples, respectively, while in the leaf oil from the male plants terpinen-4-ol (17.3% Kalimnos) and p-mentha-1(7),8-diene (41.1%, Lesvos) were the dominant constituents. The major components in unripe fruits were terpinen-4-ol (25.7%, 8.9%), myrcene (20.2%, 34.5%) and sabinene (14.9%, 19.5%). In the leaf-buds oils sabinene (52.1%) and α-pinene (11.6%) were the main constituents in the Kalimnos sample, while in the Lesvos sample the major constituent was p-mentha-1(7),8-diene (42.4%). Copyright © 2007 John Wiley & Sons, Ltd

Antiphage activity in extracts of plants growing in Greece

Crude aqueous extracts of 255 plant taxa growing in various areas of Greece were screened for antiphage activity against 6 bacteriophages (T 1, T 2, T 4, T 7, MS 2 and ΦX 174). This laboratory model has been used for the initial detection of antiviral and/or antineoplastic activity. Thirty eight extracts showed antiphage activity against one or more of the bacterial viruses used. When the active extracts were tested in the presence of Tryptone Soya Broth, part of the antiphage activity remained in 7 extracts, whereas when tested in the presence of fresh human plasma, the antiphage activity was abolished, possibly due to the precipitation of the active compounds by tannins or related substances

Essential oil composition and enantiomeric distribution of fenchone and camphor of Lavandula cariensis and L. stoechas subsp. stoechas grown in Greece

The essential oils from leaves and inflorescences of L. cariensis Boiss. and L. stoechas L. subsp. stoechas collected in Greece were analyzed by GC and GC/MS. In the inflorescences and leaves essential oils of L. cariensis the most abundant metabolite was camphor (51.8, 48.8% respectively), whereas in the essential oils of L. stoechas subsp. stoechas, the main constituents were fenchone (39.9, 21.0% respectively) and camphor (24.2, 26.3% respectively). Both enantiomers of camphor were present, whereas only (+) fenchone was detected