Results 21 to 30 of about 2,344 (201)

Huperzia verticillata (L. f.) Trevis.

open access: yes, 2022
Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp.
Zhou, Ya-Dong   +3 more
openaire   +3 more sources

Anti-Cholinesterase Activity of Lycopodium Alkaloids from Vietnamese Huperzia squarrosa (Forst.) Trevis

open access: yesMolecules, 2014
A series of Lycopodium alkaloids, namely lycosquarosine A (1), acetylaposerratinine (2), huperzine A (3), huperzine B (4), 8α-hydrophlemariurine B (5), and huperzinine (6), has been isolated from Vietnamese Huperzia squarrosa.
Manh Hung Tran
exaly   +3 more sources

Mutation Pressure and Gene-Specific Selection Shape Codon Usage Bias in the Chloroplast Genomes of <i>Isoetes</i>, an Ancient Aquatic Vascular Plant Lineage. [PDF]

open access: yesEcol Evol
This study analyzed the chloroplast genomes of 60 Isoetes species to characterize codon usage bias patterns and understand the evolutionary forces shaping this ancient lineage of aquatic vascular plants. The findings reveal a highly conserved chloroplast genome structure with relatively weak codon usage bias, primarily driven by mutation pressure ...
Li B   +8 more
europepmc   +2 more sources

The use of Huperzia species for the treatment of Alzheimer’s disease

open access: yesJournal of Basic and Clinical Physiology and Pharmacology, 2019
Abstract Alzheimer’s disease (AD), which relates to nervous degeneration, is the most popular form of memory loss. The pathogenesis of AD is not fully understood, and there are no therapies for this disorder.
Dang, Kim Thu   +4 more
openaire   +3 more sources

Extended release huperzine for the treatment of idiopathic epilepsy in dogs – a Case Report [PDF]

open access: yesFrontiers in Veterinary Science
Huperzine is a naturally occurring alkaloid derived from the Chinese clubmoss Huperzia serrata. It is a potent acetylcholinesterase inhibitor, among other properties, and has demonstrated protection against induced seizures in a mouse model of Dravet’s ...
Kylie L. Grant, Sam N. Long
doaj   +2 more sources

Insights into Pipecolic Acid Biosynthesis in Huperzia serrata

open access: yesOrganic Letters, 2018
For the biosynthesis of Pip in Huperzia serrata, the mechanistic studies were evaluated. Through a series of biochemical analyses, Pip is biosynthesized through a two-step cascade reaction. Three intermediates possibly exist simultaneously as an equilibrium matter in the first-step reaction catalyzed by HsAld1, while HsSard4 performs as a ketimine ...
Baofu Xu   +5 more
openaire   +3 more sources

Licófitas ocorrentes na Floresta Nacional de Caxiuanã, estado do Pará, Brasil: Lycopodiaceae e Selaginellaceae

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2009
Este trabalho faz parte de uma série de estudos realizada com as licófitas e monilófitas da Floresta Nacional de Caxiuanã, a qual abrange cerca de 200.000 ha, composta especialmente por floresta de terra firme, florestas inundáveis (várzea e igapó ...
Marcio Roberto Pietrobom   +5 more
doaj   +1 more source

Floras of the Archatinskoe and Chernovinskoe Forestries of the Katon-Karagay State National Nature Park (the Republic of Kazakhstan) [PDF]

open access: yesActa Biologica Sibirica, 2020
Synopses of vascular plant species and subspecies, registered in two forestries of the Katon-Karagay State National Nature Park (the Republic of Kazakhstan) are presented. A total of 393 species/subspecies were registered in the Archatinskoe Forestry and
Igor A. Artemov
doaj   +3 more sources

Lycopodiaceae endémicas del Perú

open access: yesRevista Peruana de Biología, 2013
Esta familia es reconocida en el Perú con tres géneros y 65 especies (Øllgaard, 1994; Smith et al., 2005). Solamente el género Huperzia incluye siete endemismos para la flora peruana.
Blanca León
doaj   +1 more source

Comprehensive relative quantitative metabolomics analysis of lycopodium alkaloids in different tissues of Huperzia serrata

open access: yesSynthetic and Systems Biotechnology, 2018
Qian ceng Ta, the whole plant of Huperzia serrata, is an important landscape and medicinal herbs and contains abundant bioactive lycopodium alkaloids. Although the structures of more than 100 lycopodium alkaloids in Huperzia serrata have been isolated ...
Shiwen Wu, Zhen Fan, Youli Xiao
doaj   +1 more source

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