Durante o período de dezembro/1994 a setembro/1995 foram realizadas coletas no Parque Nacional de Sete Cidades (4º5' e 4º15'S, 41º30' e 41º40'W, 450m alt.), PI, Brasil, a fim de conhecer as espécies de Myxomycetes da ordem Stemonitales ali ocorrentes. Foram obtidos e analisados 60 espécimes pertencentes a uma família, três gêneros e quinze espécies de Stemonitales, todos registrados pela primeira vez para o Estado do Piauí: Stemonitis flavogenita Jahn, S. fusca Roth, S. nigrescens Rex, S. pallida Wing., S. smithii Macbr., S. splendens Rost., Stemonitis cf. virginiensis Rex, Macbrideola martinii (Alexop. & Beneke) Alexop., Comatricha dictyospora Celak. f., C. elegans (Racib.) G. Lister, C. laxa Rost., C. longa Peck, Comatricha cf. meandrispora Castillo, Moreno & Illana, C. pulchella (C. Bab.) Rost. e C. thyphoides (Bull.) Rost. Descrições e informações sobre a distribuição geográfica de todas as espécies foram incluídas. C. dictyospora e M. martinii foram registradas pela primeira vez para o Brasil.

Entre dezembro/1994 e setembro/1995 foram realizadas sete excursões (2 a 4 dias cada) ao Parque Nacional de Sete Cidades (4º5'-4º15'S, 41º30'-41º40'W, 450m alt.), em Piripiri, Piauí, visando coletar frutificações de Myxomycetes em indivíduos de Coperniciaprunifera (Miller) H. E. Moore, estabelecidos em área de cerrado, na localidade Lagoa Seca. As amostras foram herborizadas e incorporadas ao herbário UFP (Universidade Federal de Pernambuco, Recife, PE), com duplicatas no herbário TEPB (Universidade Federal do Piauí, Teresina, PI). Registrou-se apreciável incidência (70%) de Myxomycetes na carnaubeira, em estipe vivo e folhas mortas. Dezesseis espécies, pertencentes às Ceratiomyxaceae (Ceratiomyxa lsp.), Didymiaceae (Diachea lsp., Didymium 2spp.), Physaraceae (Craterium 1sp., Physarum 4spp.), Trichiaceae (Arcyria 2spp.) e Stemonitaceae (Comatricha 3spp., Macbrideola lsp., Stemonitis lsp.) foram registradas. Ceratiomyxaceae, representada por Ceratiomyxafruticulosa (Mull.) Macbr., constitui primeira referência para o Estado do Piauí.

Abstract:The essential oil (EO) of aerial parts of Lantana camara L., Verbenaceae, from Simões, Piaui, Northeast of Brazil, were obtained by hydrodistillation and analyzed by GC-FID and GC-MS techniques. In total, 68 compounds were identified. The most representative compounds of the oil were mono and sesquiterpenes. The main compounds found in the oil of the leaves in different months were β-caryophyllene (10

There is no record in the literature about collections of Myxomycetes in the State of Piauí before 1997. This check-list intends to cover all currently reported taxa from savanna (cerrado), deciduous mixed forest, riverine forest, and urban zone environments of Piauí between 1998-2005. It contains a classification of the genera in order of families, followed by a list of species and lower taxa set out in alphabetical order within each genus. The three subclasses and six orders of the Class Myxomycetes are represented by eight families, 20 genera, 50 species, and two varieties. Liceaceae, represented by Licea biforis, is reported for the first time for the State of Piauí.

Com intuito de identificar a microbiota fúngica em condicionadores de ar nas unidades de terapia intensiva de hospitais públicos e particulares de Teresina-PI, coletou-se material sólido de dez UTIs, isolando 33 espécies pertencentes às Moniliaceae e Dematiaceae, sendo primeira referência para o Piauí. Registrou-se elevada freqüência de Aspergillus niger Van Tieghem (60%); Aspergillus fumigatus Fres (50%); Trichoderma koningii Oudem (50%), Aspergillus flavus Link: Fr (40%). A validade da limpeza dos condicionadores de ar ultrapassou em todas as UTIs, a quantidade de unidades formadoras de colônia estava além do permitido pela Portaria 176/00 do Ministério da Saúde. É importante que os profissionais estejam munidos de equipamento de proteção individual, além de adotar medidas de controle de infecção hospitalar, sensibilizar para a existência de infecções fúngicas, melhorar ventilação de ar, possibilitando arejamento do ambiente e limpar periodicamente os condicionadores de ar, conscientizando os profissionais de saúde da importância destes fungos no ambiente hospitalar.

Dematiaceous hyphomycetes (DH) are darkly pigmented fungi ubiquitously found all over the world as plant pathogens and saprophytes, and many of the members of this group have emerged as opportunistic pathogens. These fungi are responsible for a wide variety of infections including mycotic keratitis, which is considered as one of the major causes of corneal blindness, particularly in tropical and subtropical countries with an annual global burden of about 1 000 000 patients. The infection is more common in workers working in an outdoor environment. Moreover, trauma is found to be the most important predisposing cause of mycotic keratitis. Considerable delay in diagnosis and scarcity of effective pharmacological drugs are the major factors responsible for increased morbidity and visual impairment. Considering the crucial role of DH in mycotic keratitis, in the present review, we have focused on major DH with special emphasis on their pathogenicity, diagnosis and treatment strategies.

Protium heptaphyllum is found in the Amazon region, and in various Brazilian states and South American countries. Also Known as almecega, it produces an oil resin used in traditional medicine as analgesic, anti-inflammatory, cicatrizant and expectorant, it is rich in pentacyclic triterpenes and essential oil. The main objective of this study was to analyze the chemical composition of P. heptaphyllumresin (OEPh) over different extraction times and to evaluate their antifungal activity against Candida species, obtained from gardeners with onychomycosis, using the disk diffusion method. The OEPh was obtained by hydrodistillation and analyzed by Multidimensional Gas Chromatography coupled with Mass Spectrometry (MDGC / MS). Candida species were obtained from lesions on the nails of horticulturist from a community garden in the city of Teresina, Piauí, Brazil. The antifungal activity in concentrations of 1000 µg/L, 500 µg/L and 250 µg/L, PROTOCOL M44-A2 (CLSI 2009) OEPh was tested. The main constituents identified were: l-limonene, α-terpineol, p-cineol, o-cymene and α-phellandrene, however, its composition varies significantly with extraction time. All species, except C. rugosa, were inhibited with halo (≥ 14 mm) at 1000 μg / L. C. krusei is naturally resistant to the drug fluconazole, but when tested with OEPh the clinical species (case 9) demonstrated sensitivity in three dilutions (halo ≤ 10 ≥ 14) and the standard strain was inhibited at concentration of 1000 μg/Lg / L (halo 14mm). A similar situation also occurred with the standard strain of C. parapsilosis (halo ≥ 11mm). OEPh has considerable antifungal activity, which merits further investigation for alternative clinical applications, since this species is widely distributed in our community, and it presents good yields, and also has important therapeutic applications.

The Protium heptaphyllum species, also known as Almécega, produces an oily resin, used in folk medicine as an analgesic and anti-inflammatory agent, in healing, and as an expectorant, which is rich in pentacyclic triterpenes and essential oils. In this study, the essential oil obtained by hydrodistillation of Almécega's resin was analyzed by gas chromatography-triple quadrupole mass spectrometry and evaluated for chemical composition and vasorelaxant activity in rat superior mesenteric artery. The main constituents determined by gas chromatography-triple quadrupole mass spectrometry were limonene, p-cineole, and o-cymene. In intact rings precontracted with phenylephrine (Phe 1 μM), EOPh (3–750 μg/mL) induced relaxation, and the essential oil had a concentration-dependent vasorelaxant effect, without involvement of endothelial mediators.