Дисертації з теми "Lichene"
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Johansson, Per. "Effects of habitat conditions and disturbance on lichen diversity : studies on lichen communities in nemoral, boreal and grassland ecosystems /." Uppsala : Dept. of Conservation Biology, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200606.pdf.
Повний текст джерелаCandotto, Carniel Fabio. "Meccanismi di risposta di simbionti lichenici allo stress foto-ossidativo." Doctoral thesis, Università degli studi di Trieste, 2014. http://hdl.handle.net/10077/10139.
Повний текст джерелаI licheni, una simbiosi mutualistica tra un fungo (il micobionte), generalmente un ascomicete, e una o più popolazioni di alghe e/o cianobatteri (il fotobionte) sono considerati forme di vita estremofile in quanto da disidratati possono resistere a condizioni ambientali molto difficili come elevati irraggiamenti solari, scarsa disponibilità d'acqua e di nutrienti e dosi elevate di inquinanti aerodiffusi. Tali fattori di stress tuttavia inducono una sovrapproduzione a livello cellulare di specie reattive dell'ossigeno (ROS), che se eccede le difese antiossidanti genera stress ossidativo. L'accumulo delle ROS è un fenomeno molto pericoloso perché porta al danneggiamento di importanti macromolecole come lipidi, proteine e DNA ed in casi estremi può condurre anche alla morte cellulare. Sebbene gli effetti dello stress foto-ossidativo nei licheni siano già stati studiati, in questo dottorato di ricerca si è voluto approfondire alcuni aspetti ancora poco chiari relativi alla resistenza dei fotobionti a questo stress e alla resistenza dei licheni allo stress ossidativo indotto dalla presenza di elevate concentrazioni di inquinanti fotochimici come l'ozono (O3). Sul primo filone di ricerca sono stati condotti due studi. Nel primo ci si è focalizzati sugli effetti dello stress foto-ossidativo su parametri fisiologici di vitalità (ChlaF) e di produzione di ROS in un fotobionte lichenico e nella sua controparte lichenizzata. Ciò è stato ottenuto sottoponendo colture axeniche del fotobionte Trebouxia sp. e lobi del lichene Parmotrema perlatum da cui è stato isolato il fotobionte, a diverse combinazioni di umidità relativa e intensità luminose per periodi di tempo crescenti. L'obiettivo di questo studio è stato quello di approfondire le conoscenze sui benefici indotti dalla lichenizzazione nella resistenza al disseccamento e al concomitante stress foto-ossidativo. Il secondo studio invece, strettamente connesso al primo, è focalizzato sulla variazione di espressione genica dell'intero trascrittoma del fotobionte Trebouxia gelatinosa, isolato dal lichene Flavoparmelia caperata (L.) Hale, indotta da eventi di disidratazione e reidratazione. Con questo studio si è voluto individuare ed analizzare i meccanismi molecolari alla base della tolleranza di questo organismo al disseccamento e al concomitante stress fotoossidativo. Sul secondo filone di ricerca invece è stato condotto uno studio sulle risposte fisiologiche, citologiche e biochimiche del lichene Flavoparmelia caperata (L.) Hale sottoposto a fumigazioni con O3 e mantenuto a diversi regimi di idratazione e di umidità relativa ambientale. L'obiettivo di questo studio è stato quello di verificare se la tolleranza di questo lichene allo stress ossidativo derivante dall'esposizione all'O3 dipende da una strategia O3-avoidant, imputabile alla sua inattività metabolica durante le ore della giornata in cui si verifica il picco dell'O3, oppure da una O3-tolerant, dovuta invece alla presenza di un cospicuo ed efficace corredo di difese antiossidanti. Il primo studio ha dimostrato che il fotobionte algale al di fuori della simbiosi è in grado di resistere a livelli elevati di stress foto-ossidativo anche per periodi molto lunghi. Tuttavia è stato confermato che la simbiosi adduce benefici importanti come l'aumento della capacità di estinzione dell'energia accumulata dalle clorofille attraverso meccanismi non fotochimici e un ridotto effetto ossidativo indotto dal disseccamento. Questi risultati ci hanno permesso di sfatare l'ormai consolidata idea che i fotobionti algali, in particolare quelli del genere Trebouxia, siano particolarmente delicati e incapaci di tollerare autonomamente (al di fuori della simbiosi) fattori di stress abiotici come quelli che intervengono durante il disseccamento. Dai risultati del secondo studio è emerso che il fotobionte T. gelatinosa per far fronte alle importanti alterazioni dovute alla perdita d'acqua, si affida soprattutto a meccanismi che intervengono durante la fase di reidratazione. I più importanti coinvolgono molecole di riparazione “chaperone”, e. g. “Heath Shock Proteins”, e proteine della famiglia “Desiccation Related Proteins”, la cui funzione è ancora sconosciuta, ma visto l'elevato numero, la loro diversità intraspecifica e la sensibilità ai cambi di contenuto idrico, sembrano giocare un ruolo molto importante. Paradossalmente invece non sono state osservate alterazioni nell'espressione di geni collegati alle difese antiossidanti, che è sempre rimasta a livelli costitutivi. Ciò è stato interpretato come una strategia che permette all'organismo di avere sempre a disposizione mRNA per la neo-sintesi di nuovi enzimi coinvolti nelle difese antiossidanti. Infine nell'ultimo studio è stata riconfermata l'elevata resistenza del lichene F. caperata allo stress ossidativo derivato dall'esposizione all'O3 in quanto alla concentrazione utilizzata, ovvero il massimo registrato nell'ambiente alle nostre latitudini, non è stato osservato alcun effetto sulla vitalità nonostante sia stata osservata una notevole produzione di ROS. L'effetto ossidativo dell'O3 infatti è stato controbilanciato dalle difese antiossidanti le quali si sono mostrate altamente sensibili all'esposizione ed efficaci anche a bassi contenuti idrici. Lo stress ossidativo derivante da fattori abiotici di origine naturali e antropica dunque sembra essere gestito efficacemente sia dai licheni che dai loro fotobionti isolati, grazie ad efficienti difese antiossidanti e all'intervento di meccanismi di riparazione del danno.
XXVI Ciclo
1983
Denoeud-Valdeyron, Marie-Laure. "Les lichens, bioindicateurs de pollution atmospherique : application aux alentours de l'usine roquette a lestrem." Lille 2, 1992. http://www.theses.fr/1992LIL2P020.
Повний текст джерелаMATHEY, ANNICK. "De in situ lichenum investigatione de l'analyse in situ des lichens." Paris 6, 1987. http://www.theses.fr/1987PA066744.
Повний текст джерелаChu, Fung Joanna. "Ecology of supralittoral lichens on Hong Kong rocky shores /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18735526.
Повний текст джерелаNguyen, Thi Thu Tram. "Screening of mycosporine-like compounds in the dermatocarpon genus : phytochemical study of the lichen dermatocarpon luridum (WITH.) J.R Laundon." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S177/document.
Повний текст джерелаA screening of mycosporine-like compounds in four hydrophilic Dermatocarpon lichen species has highlighted the unexpected occurrence of such metabolites in chlorolichens. These compounds were confirmed and quantified in historical herbarium samples (15-50 mg) even more than 170 years old. Total mycosporine contents ranged from 0.1 to 1.4 mg/g of dry lichens. Two genuine mycosporines (mycosporine glutaminol and the more stable mycosporine glutamicol) with an artifact mycosporine glutamicol ethyl ester were isolated from Dermatocarpon luridum collected in a breton river. Their physico-chemical properties were also determined including pKa. The phytochemical studies led to the isolation of seven additional compounds in which a non-protein amino acid, a dipeptide and a ceramide were identified for the first time in lichens and cerevisterol for the first time in D. luridum. Compounds obtained in suitable quantity were evaluated for their cytotoxic and photoprotective properties. Except a moderate cytotoxicity of cerevisterol, the five tested compounds were not found toxic on the eight cell lines. Photoprotective properties of the mycosporine glutamicol ethyl ester and a semi-purified aqueous extract of Dermatocarpon miniatum along with some antioxidant activities are promising to develop new sunscreens
Cooper, Susan Mary. "Genital lichen planus." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432941.
Повний текст джерелаCaldiz, Mayra S. "Diversity and growth of epiphytic macrolichens in northwestern Patagonian Nothofagus forests /." Alnarp : Swedish University of Agricultural Sciences, 2005. http://diss-epsilon.slu.se/archive/00000831/.
Повний текст джерелаThesis documentation sheet inserted. Appendix reproduces four papers and manuscripts, three co-authored with others. Includes bibliographical references. Also partially available electronically via World Wide Web in PDF format; online version lacks appendix.
Högnabba, Filip. "Phylogenetic studies of cyanobacterial lichens /." Helsinki : Yliopistopaino, 2007. http://ethesis.helsinki.fi.
Повний текст джерелаRoullier, Catherine. "Recherche de mycosporines et de dérivés aminés lichéniques d’intérêt pour les cancers photoinduits : étude phytochimique d’un lichen marin : Lichina pygmaea (Lightf.) C. Agardh." Rennes 1, 2010. http://www.theses.fr/2010REN1S085.
Повний текст джерелаAs cutaneous cancers are increasing, research of new therapeutic solutions is necessary and the lichens are a promising source of secondary metabolites. Initially, a screening of various lichens containing cyanobacteria has highlighted the presence of mycosporine-like compounds in several of them, including a newly described structure. Then, mycosporine serinol has been isolated quantitatively from a marine lichen Lichina pygmaea. Further phytochemical studies led to the isolation of new amino derivatives, like pygmeine which has been synthetized along with analogues. Most of the compounds obtained in suitable quantity were evaluated for their photoprotective properties and in anti-cancer targeted tests. Some compounds showed interesting activity and could be good candidates in the protection of photoinduced skin cancers
Sumner, Robert Walker 1975. "Pattern formation in lichen." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86757.
Повний текст джерелаIncludes bibliographical references (p. 73-76).
by Robert Walker Sumner.
S.M.
Girard, François. "Remise en production des pessières à lichens de la forêt boréale commerciale : nutrition et croissance de plants d'épinette noire trois ans après traitements de préparation de terrain /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2004. http://theses.uqac.ca.
Повний текст джерелаCarter, Nick. "Bioprotection explored : lichens on limestone." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396154.
Повний текст джерелаHogan, Erika. "Nitrogen-phosphorus relationships in lichens." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/10906/.
Повний текст джерелаMcDaid, Ann. "Chemical characterisation of Irish lichens." Thesis, Queen's University Belfast, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282253.
Повний текст джерелаSalix, Jessie Lynn. "Lichens and their distribution in Lewis and Clark Caverns State Park." Thesis, Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/salix/SalixJ04.pdf.
Повний текст джерелаSangvichien, Ek. "Studies on tropical lichen mycobionts." Thesis, Liverpool John Moores University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431284.
Повний текст джерелаHarries, Matthew. "The immunopathobiology of lichen planopilaris." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/the-immunopathobiology-of-lichen-planopilaris(a72b5c46-fcfd-46c8-a30a-715720233f59).html.
Повний текст джерелаLee, Andrew. "Management of Vulval Lichen Sclerosus." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/26469.
Повний текст джерелаHalonen, P. (Pekka). "Studies on the lichen genus Usnea in East Fennoscandia and Pasific North America." Doctoral thesis, Oulun yliopisto, 2000. http://urn.fi/urn:isbn:9514255240.
Повний текст джерелаPrather, Hannah Marie. "Examination of Human Impacts on the Biodiversity and Ecology of Lichen and Moss Communities." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3615.
Повний текст джерелаDahlman, Lena. "Resource aquisition and allocation in lichens." Doctoral thesis, Umeå : Univ, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-115.
Повний текст джерелаLines, Catherine Elizabeth Mary. "Studies in the biology of lichens." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238171.
Повний текст джерелаSweidan, Alaa. "Antibiofilm activity of lichen secondary metabolites." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1B017/document.
Повний текст джерелаThe oral bacteria do not only infect the mouth and reside there, but also travel via the blood and reach distant body organs. If left untreated, the dental biofilm that can cause destructive inflammation in the oral cavity may result in serious systemic medical complications. In dental biofilm, Streptococcus gordonii, a primary oral colonizer, constitutes the platform on which late pathogenic colonizers like Porphyromonas gingivalis, the causative agent of periodontal diseases, will bind. The aim of the first study was to determine the antibacterial activity of eleven natural lichen compounds belonging to different chemical families to uncover new antibiotics which can fight against the oral bacteria. Three compounds were shown to have promising antibacterial activities where psoromic acid had the lowest MICs of 11.72 and 5.86 µg/mL against S. gordonii and P. gingivalis, respectively. Novel butyrolactone analogues were then designed and synthesized based on the known lichen antibacterial compounds, lichesterinic acids (B-10 and B-11), by substituting different functional groups on the butyrolactone ring trying to enhance its activity on S. gordonii and P. gingivalis.. Among the derivatives, B-12 and B-13 had the lowest MIC of 9.38 µg/mL where they have shown to be stronger bactericidals, by 2-3 times, than the reference antibiotic, doxycycline. B-12 and B-13 were also the most efficient on P. gingivalis exhibiting MIC of 0.037 and 0.293 µg/mL and MBC of 1.17 and 0.586 µg/mL, respectively. These 2 compounds were then checked for their cytotoxicity against human gingival epithelial cells and macrophages by MTT and LDH assays which confirmed their safety against the tested cell lines. A preliminary study of the structure-activity relationships unveiled the important dual role contributed by two substituents, alkyl chain at C4 and carboxyl group at C5 positions, in their mechanism of action. This was followed by the investigation of B-12 and B-13 for their antibiofilm activity against both oral strains using crystal violet assay and confocal microscopy. Both derivatives displayed a lowest concentration with maximal biofilm inhibition, LCMI, of 9.38 µg/mL against S. gordonii and 1.17 µg/mL against P. gingivalis. However, when sub-inhibitory concentrations of B-12 and B-13 were used, we demonstrated that the two investigated strains were able to form biofilms in vitro. Indeed, this antibiofilm activity decreased as indicated by the expression of the genes implicated in adhesion and biofilm formation. To better understand the mechanism of action of butyrolactones, we have investigated B-13 bacterial localization by synthesizing a fluorescently labeled B-13 with NBD (4-nitro-benzo[1,2,5]oxadiazole) conserving its antibacterial activity. By confocal microscope, we showed that this compound binds to S. gordonii cell surface and this was also demonstrated by HPLC analysis. By adhering to cell surface, B-13 induced cell wall disruption leading to the release of bacterial constituents and consequently, the death of S. gordonii, a Gram-positive bacterium. The expression of two genes, murA and alr, implicated in cell wall synthesis, was modified in the presence of this butyrolactone. Gram-negative bacteria such as P. gingivalis showed also cracked and ruptured cells in the presence of B-13, suggesting that this butyrolactone acts on Gram-positive and Gram-negative strains, but with greater efficacy against the Gram-negatives. Besides, we also demonstrated that the analogue of B-13, B-12, has also induced disruption of P. gingivalis and S. gordonii. All these studies demonstrated that butyrolactones derived from a lichen metabolite can be proposed as potent antibacterial agents against oral pathogens causing serious medical complications
Lessard, Martine. "Caractérisation des produits naturels odorants retrouvés dans les lichens de genre usnea et bryoria de la région du mont Apica, Québec /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1990. http://theses.uqac.ca.
Повний текст джерелаCoste, Clother. "Écologie et fonctionnement des communautés lichéniques saxicoles-hydrophiles." Phd thesis, Université Paul Sabatier - Toulouse III, 2011. http://tel.archives-ouvertes.fr/tel-00745808.
Повний текст джерелаWelch, Anthony Richard. "The effect of anthropogenic nutrient addition on the growth and competitive abilities of Parmelia caperata, P. reddenda, P. saxatilis and Xanthoria parietina in Cornwall." Thesis, Open University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289005.
Повний текст джерелаHernández, Padrón Consuelo E. "Flora y vegetación liquénica epífita de los sabinares herreños /." Berlin : J. Cramer, 1987. http://catalogue.bnf.fr/ark:/12148/cb39980218f.
Повний текст джерелаJohansson, Otilia. "Epiphytic lichen responses to nitrogen deposition." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-43751.
Повний текст джерелаSiponen, M. (Maria). "Oral lichen planus – etiopathogenesis and management." Doctoral thesis, Oulun yliopisto, 2017. http://urn.fi/urn:isbn:9789526214702.
Повний текст джерелаTiivistelmä Suun punajäkälä on krooninen immuunivälitteinen limakalvotauti, jonka etiologia on tuntematon. Taudin syntymekanismiin liittyy tämän hetkisen näkemyksen mukaan T-soluvälitteisen immuniteetin aktivoituminen epiteelin keratinosyyttejä vastaan. Suun punajäkälä aiheuttaa osalle potilaista kivuliaita oireita ja lisää suusyövän riskiä. Parantavaa hoitoa tautiin ei ole. Yleisimmin suun punajäkälän oireiden hoidossa käytetään paikallisia kortikosteroidivalmisteita. Kuitenkin eri hoitomuotojen tehosta on vain heikkoa näyttöä. Tämän väitöskirjatyön tarkoituksena oli tutkia uusia näkökohtia liittyen suun punajäkälän etiopatogeneesiin ja hoitoon. Epidemiologisessa tapaus-verrokkitutkimuksessa selvitettiin, liittyvätkö yleissairaudet, erityisesti kilpirauhassairaudet, suun punajäkälään. Lisäksi satunnaistetussa kontrolloidussa tutkimuksessa verrattiin paikallisen takrolimuusin, triamsinoloniasetonidin ja lumelääkkeen tehoa oireisesta suun punajäkälästä kärsivillä potilailla. Tutkimuksessa selvitettiin myös tollin kaltaisten reseptorien 4 ja 9, hyaluronaanin ja sen pääasiallisen reseptorin CD44-antigeenin, hyaluronaanisyntaasien 1–3, hyaluronidaasien 1–2 sekä katepsiini K:n immunohistokemiallista ilmentymistä suun punajäkälänäytteissä ja terveessä suun limakalvossa. Lisäksi tutkittiin takrolimuusihoidon vaikutusta näiden molekyylien ilmentymiseen suun punajäkälässä. Tämän tutkimuksen tulokset osoittivat, että kilpirauhasen vajaatoimintaan liittyi noin kaksinkertainen riski sairastaa suun punajäkälää. Lisäksi havaittiin, että suun punajäkälässä sekä takrolimuusi että triamsinoloniasetonidi ovat tehokkaampia kuin lumelääke oireiden ja kliinisen taudinkuvan lievittämisessä. Takrolimuusin ja triamsinoloniasetonidin tehossa ei todettu tilastollisesti merkitseviä eroja. Lisäksi suun punajäkälänäytteissä tutkittujen molekyylien ilmentyminen oli muuttunut joko epiteelissä tai stroomassa verrattuna terveeseen limakalvoon. Takrolimuusihoito vähensi CD44-antigeenin ilmentymistä stroomassa ja katepsiini K:n ilmentymistä epiteelissä suun punajäkälässä. Yhteenvetona voidaan todeta, että tämä tutkimus lisää tietoa suun punajäkälään liittyvistä systeemisistä tekijöistä ja suun punajäkälän hoidosta. Lisäksi löydökset lisäävät ymmärtämystä suun punajäkälässä tapahtuvista molekyylitason muutoksista
Ellin, Simon J. "Epiphytic lichens and air pollution : effects of sulphur dioxide, ozone and wet acidic deposition, singly or in combination under field and solardome conditions, on foliose and fruticose lichen species with green photobionts." Thesis, University of Bradford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362085.
Повний текст джерелаMénard, Thierry. "Etude phytosociologique et écologique des peuplements lichéniques saxicoles calcifuges du sud-est de la France." Aix-Marseille 3, 1997. http://www.theses.fr/1997AIX30088.
Повний текст джерелаDahl, Wivecke. "Contribution à l'étude des métabolites secondaires chez les lichens fructiculeux Cladina stellaris et Cladina rangiferina /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2003. http://theses.uqac.ca.
Повний текст джерелаLõhmus, Piret. "Forest lichens and their substrata in Estonia /." Online version, 2005. http://dspace.utlib.ee/dspace/bitstream/10062/918/5/lohmus.pdf.
Повний текст джерелаSmith, Elizabeth. "Carbon accumulating mechanisms in lichens and bryophytes." Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282765.
Повний текст джерелаUcrospoma, Jara Marisa. "Ramalina (Lichens) en los parques de Lima." Pontificia Universidad Católica del Perú. Centro de Investigación en Geografía Aplicada, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/119300.
Повний текст джерелаErfanian, Nima, and Kaiser Ghodbeni. "Clinical Description of Patients Diagnosed with Oral and Genital Lichen Planus, a Register Study." Thesis, Umeå universitet, Institutionen för odontologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-143876.
Повний текст джерелаCaruso, Alexandro. "Lichen diversity on stems, slash, and stumps in managed boreal forests : impact of whole-tree harvest /." Uppsala : Swedish University of Agricultural Sciences, 2008. http://diss-epsilon.slu.se/archive/00001675/.
Повний текст джерелаIncludes reprints of four papers and manuscripts co-authored with others. Includes bibliographical references. Also partially available electronically via World Wide Web in PDF format; online version lacks reprints of four papers and manuscripts.
Semadi, Ammar. "Effets de la pollution atmosphérique (pollution globale, fluorée et plombique) sur la végétation dans la région de Annaba (Algérie)." Paris 6, 1989. http://www.theses.fr/1989PA066455.
Повний текст джерелаReding, Jordan Michael. "Rock Climbing or Lichen Climbing? How Rock Climbing Impacts Bryophyte and Lichen Communities Within the Red River Gorge." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1562584961670604.
Повний текст джерелаDownward, Kenneth. "Relationships between surface crusts and erosion in the Tabernas Badlands, Almeria, S.E. Spain." Thesis, University of Wolverhampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325975.
Повний текст джерелаForbes, PBC, M. Thanjekwayo, JO Okokwo, M. Sekhula, and C. Zvinowanda. "Lichens as biomonitors for manganese and lead in Pretoria, South Africa." Fresenius Environmental Bulletin, 2008. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001756.
Повний текст джерелаHesse, Volker. "Epiphytic lichen diversity and its dependence on chemical site factors in differently elevated dieback-affected spruce stands of the Harz Mountains /." Berlin : J. Cramer, 2002. http://catalogue.bnf.fr/ark:/12148/cb41308907z.
Повний текст джерелаDailey, Rebecca N. "Toxicity of Xanthoparmelia chlorochroa and the lichen substance (+)-usnic acid in ruminants." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1798967551&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Повний текст джерелаSignoret, Jonathan Müller Serge. "Etude de la qualité de l'air en Lorraine-Nord par les lichens contribution en tant que bioindicateurs écologiques, bioaccumulateurs d'éléments chimiques et biomarqueurs du stress oxydant /." Metz : Université Metz, 2008. ftp://ftp.scd.univ-metz.fr/pub/Theses/2002/Signoret.Jonathan.SMZ0213.pdf.
Повний текст джерелаJackson, Heather Bird. "Distribution of chemistry and sexual fecundity in the lichenized-fungi, Xanthoparmelia cumberlandia and Xanthoparmelia coloradon︠sis on Boulder Mountain, Aquarius Plateau, UT /." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd623.pdf.
Повний текст джерелаDandridge, Debra Elaine. "Lichen: the challenge for rock art conservation." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4695.
Повний текст джерелаFarrell, Anne M. "Lichen sclerosis : a study of its pathogenesis." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270288.
Повний текст джерелаBeGora, Michael D. "UV-induced lability of lichen secondary compounds." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0020/MQ58014.pdf.
Повний текст джерелаMurtagh, Gareth James. "Sex and variation in lichen-forming fungi." Thesis, University of Nottingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285566.
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