Full Text Available The paper describes Professor Tamás Pócs’ cooperation with Finnish bryologists and other cryptogam taxonomists. Cooperation began with exchange of reprints in 1966 and identification of African bryophyte specimens in 1973. In 1976, Timo Koponen visited Budapest and Eger, and joint work continued during a University of Helsinki Department of Botany student excursion to Tanzania in 1988. Tamás Pócs, then a professor at Sokoine Agricultural University, arranged the logistics for the preparatory visit of four teachers as well as for the excursion itself. Later, Pócs participated in the Congress of Eastern Asiatic Bryology, the EU-funded ‘Advanced instruction in bryology and lichenology’ (Large Scale Facility program and the ‘Bryophyte Flora of the Huon Peninsula, Papua New Guinea’ project organized in Helsinki. He was elected a corresponding member of the Finnish Bryological Society in 2009.
Ilić Miloš M.
Full Text Available Fruška Gora is a mountain located in the southern part of Pannonian plane and it is poorly bryologicaly investigated as well as most parts of Serbia. First data on bryophytes, for this region, were published in 1949 by Teodor Soška in his paper Pregled mahovina i lišajeva u okolini Beograda (Review of mosses and lichens in the vicinity of Belgrade. Soška listed 34 species of mosses and 8 liverworts species for this region. Later, in 1955, Zlatko Pavletić in his capital work Prodromus flore briofita Jugoslavije (Prodromus of Yugoslavian bryophyte flora, stated 26 moss species and 3 liverwort species, without indicating specific localities, but all of them were Soška’s original results. In 1966, the second botanist with original findings of bryophytes on Fruška Gora was Popović, who recorded 2 liverwort and 19 moss species, for this mountain, also without specific localities. By far, the most comprehensive data were given by Cvetić and Sabovljević in 2004. Their study A contribution to the bryophyte flora of Fruška Gora (Vojvodina, Serbia counted total number of 118 mosses and 14 liverworts, on 16 localities within National park Fruška Gora. The latest study on bryophytes of Fruška Gora was in 2013, and it is the first and so far, the last study of bryophyte assemblages on grasslands. Authors of this paper recorded 18 species of mosses from 29 releveé. Complete bryophyte flora of Fruška Gora is still unknown. Considering the fact that this is the region with high biodiversity, dense hydrological network and a rather complex geology, Fruška Gora certainly deserves further bryological researches.
Margadant, Willem Daniel
In my work for the Index Muscorum it became apparent that dating problems existed for publications of the years 1825-1827, which were important for the nomenclature of Musci. The article by Arnott, Nouvelle disposition méthodique des espèces de mousses, was indicated from 1825 in some sources, but
The main task of the first directors of the Rijksherbarium consisted of the preparation of a catalogue of its Dutch East Indian and Japanese collections (cf. van Steenis-Kruseman’s paper in this volume). Among those who contributed to this catalogue was J. H. Molkenboer, a young physician who had
The New Zealand Grimmia Hedw. specimens from AK, AKU, BM, CHR, OTA and WELT have been revised and a bryological field trip to the New Zealand Southern Alps was made to study specimens in their natural habitats. As a result of the revision and the field trip, G. anodon, G. austrofunalis, G.
The Australian Grimmia Hedw. specimens from BM, BRI, CANB, CBG, HO, MEL, MELU, NSW and PERTH have been revised and a bryological trip to the Australian Alps was made to study specimens in their natural habitats. As a result of the revision and field trip, G. anodon, G. australis, G. longirostris, G.
The Chocò region in Columbia harbours one of the wettest rainforests in the world. Isolated for about 3 million years, it is known for its high rate of endemism in flowering plants, birds and butterflies. Bryologically it is, however, very unsufficiently known.
Full Text Available The paper presents a brief review of published so far and recently recorded unpublished bryological data concerning the distribution in Poland of two neophytic (sensu Meusel 1943 mosses: Campylopus introflexus (Hedw. Brid. and Orthodontium lineare Schwaegr.to estimate their current influence on native bryoflora. The data clearly indicate the constant spreading of these species towards the east, however, there is no direct evidence that they have been limiting the occurrence of native moss species. They are acidophilous species, so the acidification of the environment probably promotes their expansion. Maps of the most current distribution of Campylopus introflexus and Orthodontium lineare in Poland (in a system of ATMOS-grid squares are provided, as well as a description of the first locality in Poland of another European bryo-neophyte species Leptophascum leptophyllum Mull. Hal.
Full Text Available Bryostatin 1 (henceforth bryostatin is in clinical trials for the treatment of Alzheimer’s disease and for HIV/AIDS eradication. It is also a preclinical lead for cancer immunotherapy and other therapeutic indications. Yet nothing is known about the conformation of bryostatin bound to its protein kinase C (PKC target in a membrane microenvironment. As a result, efforts to design more efficacious, better tolerated, or more synthetically accessible ligands have been limited to structures that do not include PKC or membrane effects known to influence PKC–ligand binding. This problem extends more generally to many membrane-associated proteins in the human proteome. Here, we use rotational-echo double-resonance (REDOR solid-state NMR to determine the conformations of PKC modulators bound to the PKCδ-C1b domain in the presence of phospholipid vesicles. The conformationally limited PKC modulator phorbol diacetate (PDAc is used as an initial test substrate. While unanticipated partitioning of PDAc between an immobilized protein-bound state and a mobile state in the phospholipid assembly was observed, a single conformation in the bound state was identified. In striking contrast, a bryostatin analogue (bryolog was found to exist exclusively in a protein-bound state, but adopts a distribution of conformations as defined by three independent distance measurements. The detection of multiple PKCδ-C1b-bound bryolog conformers in a functionally relevant phospholipid complex reveals the inherent dynamic nature of cellular systems that is not captured with single-conformation static structures. These results indicate that binding, selectivity, and function of PKC modulators, as well as the design of new modulators, are best addressed using a dynamic multistate model, an analysis potentially applicable to other membrane-associated proteins.
Nomura, Toshihisa; Sakurai, Tetsuya; Osakabe, Yuriko; Osakabe, Keishi; Sakakibara, Hitoshi
Targeted genome modification by RNA-guided nucleases derived from the clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated nuclease 9 (Cas9) system has seen rapid development in many organisms, including several plant species. In the present study, we succeeded in introducing the CRISPR/Cas9 system into the non-model organism Scopelophila cataractae, a moss that exhibits heavy metal tolerance, and the model organism Physcomitrella patens Utilizing the process by which moss plants regenerate from protoplasts, we conducted targeted mutagenesis by expression of single-chain guide RNA (sgRNA) and Cas9 in protoplasts. Using this method, the acquisition rate of strains exhibiting phenotypic changes associated with the target genes was approximately 45-69%, and strains with phenotypic changes exhibited various insertion and deletion mutations. In addition, we report that our method is capable of multiplex targeted mutagenesis (two independent genes) and also permits the efficient introduction of large deletions (∼3 kbp). These results demonstrate that the CRISPR/Cas9 system can be used to accelerate investigations of bryology and land plant evolution. © The Authors 2016. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved. For permissions, please email: firstname.lastname@example.org.
José María de Jaime Lorén
Full Text Available RESUMEN: La personalidad científica y académica del naturalista Francisco Beltrán Bigorra, ha sido objeto hasta el presente de diversos estudios que se muestran unánimes en considerar lo prometedor de sus inicios en el campo de la briología, y cómo, una vez alcanzada la cátedra universitaria, se fueron apagando paulatinamente estas expectativas mientras el científico acumulaba diversos cargos. Sin negar en esencia esta visión, en el presente trabajo la matizamos un poco al considerar las dificultades objetivas entre las que desarrolló su labor (incendio de la Facultad de Ciencias, guerra civil y dramática posguerra, grave inundación del Jardín Botánico de 1958, etc., al paso que destacamos su poco conocida lección inaugural de curso sobre la historia de la Botánica Española (1925. Se incluye una colección de fotografías de Francisco Beltrán procedentes de su archivo familiar. ABSTRACT: The scientific and academic personality of the naturalist Francisco Beltrán Bigorra, it has been an object up to the present time of diverse studies that agree in considering the promising of his beginnings in the field of the bryology, and how, once reached the university chair, these expectations were going out gradually while the scientist was accumulating some positions. Without denying in essence this vision, in the present work we tint it a bit on having considered the objective difficulties within which he developed his labor (fire of the Faculty of Sciences, civil war and dramatic postwar period, serious flood of the Botanical Garden of 1958, etc., while we emphasize his little known inaugural lesson of the academic year on the history of the Spanish Botany (1925. There is included a collection of Francisco Beltrán’s photographies from his family archive.
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