Results 31 to 40 of about 557 (180)

Taxonomic revision of genus Duthiea Hack. (Poaceae) in India

open access: yesDiscover Plants
A taxonomic revision of the genus Duthiea Hack. in India recognizes two species: D. brachypodium and D. bromoides. D. brachypodium is newly recorded here from the Indian Eastern Himalaya (IEH), collected from Sikkim, which also constitutes the first ...
Suparna Saha   +4 more
doaj   +1 more source

New distributional data on Geastrum (Geastraceae, Basidiomycota) from Brazil Novos dados de distribuição de Geastrum (Geastraceae, Basidiomycota) no Brasil

open access: yesActa Botânica Brasílica, 2011
The data presented in this article are the results of field collections and the analysis of fungal specimens deposited in the URM Herbarium. The field trips were carried out in four Atlantic Forest remnants in the state of Pernambuco, between June 2008 ...
Larissa Trierveiler-Pereira   +2 more
doaj   +1 more source

Phylogenetic evaluation of cyanobacteria preserved as historic herbarium exsiccata [PDF]

open access: yesInternational Journal of Systematic and Evolutionary Microbiology, 2006
Dried herbarium specimens of cyanobacteria (exsiccata) deposited over 100 years ago were analysed and characterized using combined morphological and molecular approaches. Six representative coccoid and filamentous cyanobacteria from two historic collections and a 15-year-old air-dried environmental sample were studied.
Katarzyna Palińska   +3 more
openaire   +2 more sources

Gastroprotective Effects of Hexanic Extract of the Leaves of Spondias purpurea and Its Underlying Mechanism of Action

open access: yesJournal of Food Process Engineering, Volume 49, Issue 6, June 2026.
Histopathological analysis of gastric mucosa stained with HE and PAS of rats submitted to induction of ulcers with acetic acid. The animals were treated orally with vehicle (injured control), ranitidine, and SpHE (25 mg/kg) for 14 days. In A and B, observe preserved mucosa and submucosal layers (black asterisk) and presence of the barrier protection of
Cynthia Layse Ferreira de Almeida   +9 more
wiley   +1 more source

Briófitas de praias do Estado de São Paulo, Brasil Bryophytes from sea-shores of the São Paulo State, Brazil

open access: yesActa Botânica Brasílica, 2004
O trabalho compõe-se de uma lista de briófitas, um grupo de plantas ausente em ambientes marinhos, porém ocorrente em condições arenosas e salinas e sob ação das ondas e dos ventos nas praias de Ubatuba, Bertioga e Peruíbe, no Estado de São Paulo.
Sandra Regina Visnadi
doaj   +1 more source

Anxiolytic and Memory Protective Effects of Withanolide D Isolated From Acnistus arborescens in Adult Zebrafish

open access: yesChemistry &Biodiversity, Volume 23, Issue 5, May 2026.
Withanolide D Exhibits Anxiolytic and Memory‐Protective Effects. ABSTRACT This study evaluated the anxiolytic and memory‐protective effects of withanolide D in adult zebrafish (Danio rerio). The compound was administered at doses of 4, 20, and 40 mg/kg and showed no signs of toxicity after 96 h of observation at any of the doses tested.
Cléia Rocha de Sousa Feitosa   +17 more
wiley   +1 more source

Myxomycetes em Palmeiras (Arecaceae) Myxomycetes on palm trees (Arecaceae)

open access: yesActa Botânica Brasílica, 1996
As palmeiras oferecem um ecossistema especializado que abriga organismos variados, incluindo Myxomycetes. Este trabalho relata doze espécies de Myxomycetes encontradas em folhas mortas, espata e estipe de Acrocomia intumescens Drude (macaúba), Copernicea
Maria Helena Alves   +1 more
doaj   +1 more source

Identification and In Vitro Cytotoxic Evaluation of (E)‐Nerolidol From Piper mollicomum Kunth Essential Oil in Breast and Lung Cancer Cell Lines

open access: yesChemistry &Biodiversity, Volume 23, Issue 5, May 2026.
This study integrates chemical characterization and biological evaluation of Piper mollicomum. Ethanolic and dichloromethanic extracts and the leaf essential oil were analyzed, revealing a sesquiterpene‐rich composition with (E)‐nerolidol as the major compound.
Letícia Barbosa Santos   +8 more
wiley   +1 more source

Flora istriaca exsiccata [PDF]

open access: yesOesterreichische Botanische Zeitschrift
n ...
openaire   +1 more source

Tabernaemontana catharinensis: A Source of Indole Alkaloids With Potential Activity as Chemotherapeutic Agents

open access: yesChemistry &Biodiversity, Volume 23, Issue 4, April 2026.
ABSTRACT This study aimed to evaluate the antitumor activity of fractions rich in indole alkaloids extracted from the leaves of the species Tabernaemontana catharinensis. The chemical composition was analyzed using high‐resolution mass spectrometry (HRMS), which identified nine known indole alkaloids, including voacangine, voacangine hydroxyindolenine,
Ana Júlia Gomes Donada   +5 more
wiley   +1 more source

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