As espécies de Croton L. sect. Cyclostigma Griseb. e Croton L. sect. Luntia (Raf.) G. L. Webster subsect. Matourenses G. L. Webster (Euphorbiaceae s.s.) ocorrentes na Amazônia brasileira

Como parte de uma revisão taxonômica das espécies de Croton L. na Amazônia brasileira, estudou-se as seguintes espécies de Croton sect. Cyclostigma Griseb. e Croton sect. Luntia (Raf.) G. L. Webster subsect. Matourenses G. L. Webster: Croton urucurana Baill., C. draconoides Müll. Arg., C. trombetensis R. Secco, P. E. Berry & N.A. Rosa, C. sampatik Müll. Arg., C. palanostigma Kl., C. pullei Lanj. e C. matourensis Aubl. O estudo foi baseado em trabalho de campo realizado nos Estados do Pará e Maranhão, e em material depositado nos herbários IAN, INPA, MG e RB, incluindo tipos. Algumas dessas espécies, como C. urucurana, C. draconoides, C. palanostigma e C. sampatik , são frequentemente encontradas nos herbários com identificações equivocadas. São discutidas a posição taxonômica das espécies nas seções e suas afinidades, e uma chave dicotômica e ilustrações foram elaboradas para um melhor entendimento dos táxons.

Acmella marajoensis G.A.R. Silva & J.U.M. Santos: uma nova espécie de Asteraceae para a Amazônia brasileira

Em decorrência dos estudos na subtribo Ecliptinae da Amazônia brasileira, é descrita uma nova espécie, Acmella marajoensis G.A.R. Silva & J.U.M. Santos. Até o presente momento, a espécie é considerada como endêmica da Ilha do Marajó. São apresentados diagnose em latim, descrição detalhada, comentários taxonômicos e ilustrações.

A Gß protein and the TupA Co-Regulator bind to protein kinase A Tpk2 to act as antagonistic molecular switches of fungal morphological changes

A Gß protein and the TupA Co-Regulator Bind to Protein Kinase A Tpk2 to Act as Antagonistic Molecular Switches of Fungal Morphological Changes

Analysis of a Local HIV-1 Epidemic in Portugal Highlights Established Transmission of non-B and -G Subtypes

Existing data supports Portugal as the Western Europe country with highest HIV-1 subtype diversity. However, detailed phylogenetic studies of Portuguese HIV-1 epidemics are still scarce. Thus, our main goal was to analyze the phylodynamics of a local HIV-1 infection in the Portuguese region of Minho. Molecular epidemiological analysis was applied to data from 289 HIV-1 infected individuals followed in the reference Hospital of the province of Minho, Portugal, in which isolated viruses had been sequenced between 2000 and 2012. Viruses of the G (29.1%) and B (27.0%) subtypes were the most frequent, followed by recombinant forms (17.6%), C (14.5%), F1 (7.3%) and A1 (4.2%) subtypes. Multinomial logistic regression revealed that the odds of being infected with A1 and F1 subtype increased over the years when compared with B, G, C or recombinant viruses. As expected, polyphyletic patterns suggesting multiple and old introductions of subtypes B and G were found. However, transmission clusters of non-B and -G viruses among native individuals were also found with the dates of the most recent common ancestor estimated to the early 2000s. Our study supports that the HIV-1 subtype diversity in the Portuguese region of Minho is high and has been increasing in a manner that is apparently driven by factors other than immigration and international travel. Infections with A1 and F1 viruses in the region of Minho are becoming established and were mainly found in sexually transmitted clusters, reinforcing the need for more efficacious control measures targeting this infection route.

Prodromus Florae Peninsulae Indiae Orientalis :containing abridged descriptions of the plants found in the peninsula of British India, arranged according to the natural system : Vol. 1 /by Robert Wight and G.A. Walker-Arnott.

1834

Handleiding tot de kennis der flora van Nederlandsch Indië. :Beschrijving van de families en geslachten der Nederl. Indische phanerogamen /door J.G. Boerlage.

v. 1

Handleiding tot de kennis der flora van Nederlandsch Indië. :Beschrijving van de families en geslachten der Nederl. Indische phanerogamen /door J.G. Boerlage.

v. 2

Handleiding tot de kennis der flora van Nederlandsch Indië. :Beschrijving van de families en geslachten der Nederl. Indische phanerogamen /door J.G. Boerlage.

v. 3

Synopsis plantarum glumacearum /autore E.G. Steudel.

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Synopsis plantarum glumacearum /autore E.G. Steudel.

v.2