Search results for "ichen"
showing 8 items of 338 documents
Phylogenetic generic classification of parmelioid lichens (Parmeliaceae, Ascomycota) based on molecular, morphological and chemical evidence
2010
WOS: 000285566000008
Perturbation vectors to evaluate air quality using lichens and bromeliads: a Brazilian case study.
2017
10 pages; International audience; Samples of one lichen species, Parmotrema crinitum, and one bromeliad species, Tillandsia usneoides, were collected in the state of Rio de Janeiro, Brazil, at four sites differently affected by anthropogenic pollution. The concentrations of aluminum, cadmium, copper, iron, lanthanum, lead, sulfur, titanium, zinc, and zirconium were determined by inductively coupled plasma-atomic emission spectroscopy. The environmental diagnosis was established by examining compositional changes via perturbation vectors, an underused family of methods designed to circumvent the problem of closure in any compositional dataset. The perturbation vectors between the reference s…
Fungal-associated NO is involved in the regulation of oxidative stress during rehydration in lichen symbiosis
2010
[EN] Background Reactive oxygen species (ROS) are normally produced in respiratory and photosynthetic electron chains and their production is enhanced during desiccation/rehydration. Nitric oxide (NO) is a ubiquitous and multifaceted molecule involved in cell signaling and abiotic stress. Lichens are poikilohydrous organisms that can survive continuous cycles of desiccation and rehydration. Although the production of ROS and NO was recently demonstrated during lichen rehydration, the functions of these compounds are unknown. The aim of this study was to analyze the role of NO during rehydration of the lichen Ramalina farinacea (L.) Ach., its isolated photobiont partner Trebouxia sp. and Ast…
Notulae to the Italian flora of algae, bryophytes, fungi and lichens: 7
2019
In this contribution, new data concerning algae, bryophytes, fungi, and lichens of the Italian flora are presented. It includes new records and confirmations for the algae genusChara, the bryophyte generaCephalozia,Conardia,Conocephalum,Didymodon,Sphagnum,Tetraplodon, andTortula, the fungal generaEndophyllum,Gymnosporangium,Microbotryum,Phragmidium, andPluteus, and the lichen generaCandelariella,Cladonia,Flavoplaca,Lichenothelia,Peltigera,Placolecis,Rinodina,Scytinium, andSolenopsora.
Effects of local forest continuity on the diversity of fungi on standing dead pines
2018
Human-induced fragmentation affects forest continuity, i.e. availability of a suitable habitat for the target species over a time period. The dependence of wood-inhabiting fungi on landscape level continuity has been well demonstrated, but the importance of local continuity has remained controversial. In this study, we explored the effects of local forest continuity (microhabitat and stand level) on the diversity of wood-inhabiting fungi on standing dead trunks of Scots pine (Pinus sylvestris L.). We studied species richness and community composition of decomposers and Micarea lichens on 70 trunks in 14 forests in central Finland that differed in their state of continuity. We used dendrochr…
Contributo alla conoscenza della flora lichenica della Riserva Naturale Regionale delle Isole dello Stagnone di Marsala (Trapani)
2008
Le Isole dello Stagnone di Marsala con Decreto del 4 luglio 1984 della Regione Siciliana sono state istituite Riserva Naturale, per salvaguardare la caratteristica flora alofila, le associazioni vegetali anch'esse caratteristiche, perché legate all'ambiente salmastro, oltre che per la presenza di diverse specie endemiche tra le quali alcune specie di Limonium e Calendula maritima. Il territorio si estende sulla costa occidentale della Sicilia nel territorio del comune di Marsala, nel tratto di mare compreso tra capo San Teodoro e capo Lilibeo compresa tra le quattro isole di San Pantaleo (Mozia), Isola Grande, Schola e Santa Maria. La riserva presenta peculiarità naturalistiche vegetazional…
Primo contributo lichenologico nella Riserva Naturale Orientata di Bosco della Favara e Bosco Granza (Sicilia centro-settentrionale).
2008
Oggetto del nostro contributo il censimento della flora lichenica del territorio di Montemaggiore Belsito facente del sito ZPS ITA020032 “Boschi di Granza e Bosco di Favara.Il territorio in esame ampiamente studiato dal punto di vista vegetazionale e floristico relativamente alle fanerogame (2), non risulta finora studiato sotto l’aspetto lichenico .L’area in esame è denominata Valle del Torto ed è compresa nella tavola I.G.M., 1:25.000, F. 259 I: S.O. (Montemaggiore Belsito). Essa si estende su un ampio territorio ricadente nei comuni di Montemaggiore Belsito, Cerda, Sclafani Bagni, Caltavuturo e Caccamo. Tale studio appare significativo per comprendere il mosaico delle conoscenze floristi…
Botany_Theory Lectures_Pharmacy degree-UV_IsaacGarridoBenavent
2023
El document forma part dels materials docents programats mitjançant l'ajut del Servei de Política Lingüística de la Universitat de València. This document contains the teaching material corresponding to the subject Botany, which is taught in the first year of the Degree in Pharmacy at the University of Valencia. More specifically, this material is designed for the high performance group (ARA). It contains basic botany lessons (structure and reproduction) as well as others dedicated to describing the diversity of different botanical groups, such as plants, algae and fungi.