Results 31 to 40 of about 233 (127)

Hairy, hairy quite contrary: Pollination and functional floral traits in a hirsute carrion‐scented stapeliad

TAXON, Volume 75, Issue 3, June 2026.
Abstract Floral mimicry of decaying substrates of animal origin, such as carrion or faeces, is associated with unusual traits such as geoflory, deep maroon or yellow colouration, floral hairs and unpleasant odour, but the functional significance of these traits for attracting and manipulating pollinators has seldom been examined.
Adam Shuttleworth, Marc du Plessis, Peter V. Bruyns, Steven D. Johnson   +3 more
wiley   +1 more source

Intraspecific variability of Holostylis reniformis: concentration of lignans, as determined by maceration and supercritical fluid extraction (SFE-CO2), as a function of plant provenance and plant parts

Química Nova, 2014
Maceration and supercritical fluid extraction were used to prepare extracts from parts of plants (Holostylis reniformis) collected in two different regions of Brazil.
Gislaine F. Martins, Marcos D. P. Pereira, Lucia M. X. Lopes, Tito da Silva, Paulo de T. Vieira e Rosa, Fernanda P. Barbosa, Gisele B. Messiano, Antoniana U. Krettli   +7 more
doaj   +1 more source

Nitro derivatives and other constituents of Aristolochia melastoma

Química Nova, 2012
A phytochemical study of Aristolochia melastoma Manso has led to the isolation and identification of 20 known compounds, including aristolochic acids, sodium aristolochates, lignan, flavonoids, and nitro phenylethyl derivatives.
Cláudio R. Nogueira, Lucia M. X. Lopes
doaj   +1 more source

The Bufei Nashen Pill Alleviates COPD by Targeting Endoplasmic Reticulum Stress Through the PERK/eIF2α Signaling Pathway

Immunity, Inflammation and Disease, Volume 14, Issue 4, April 2026.
ABSTRACT Background Evidence supporting the therapeutic efficacy of Bufei Nashen pill (BFNSP) for chronic obstructive pulmonary disease (COPD) is currently limited. We evaluated BFNSP's effects on COPD progression and elucidated its potential mechanisms through LC/MS analysis of its active components.
Tengfei He, Anni Zhang, Changxi Zhang
wiley   +1 more source

Flora da Usina São José, Igarassu, Pernambuco: Aristolochiaceae e Piperaceae

Rodriguésia
Piperales compreende cinco famílias, cerca de 25 gêneros e 4000 espécies, das quais apenas Aristolochiaceae e Piperaceae estão presentes no Nordeste do Brasil.
Aline Melo, Ariclenes A.M. Araújo, Marccus Alves   +2 more
doaj   +1 more source

Molecular data place Hydnoraceae with Aristolochiaceae [PDF]

American Journal of Botany, 2002
Utilization of molecular phylogenetic information over the past decade has resulted in clarification of the position of most angiosperms. In contrast, the position of the holoparasitic family Hydnoraceae has remained controversial. To address the question of phylogenetic position of Hydnoraceae among angiosperms, nuclear SSU and LSU rDNA and ...
Daniel L, Nickrent, Albert, Blarer, Yin-Long, Qiu, Douglas E, Soltis, Pamela S, Soltis, Michael, Zanis   +5 more
openaire   +2 more sources

1016. ASARUM CRASSUM: Aristolochiaceae

Curtis's Botanical Magazine, 2022
SummaryAsarum crassum Maekawa is a rare evergreen perennial, endemic to two small, uninhabited islands off the south coast of Kyūshū island, Japan. It is illustrated here and its introduction, horticultural merits and cultivation are discussed.
Richard Moore, Christabel King
openaire   +1 more source

Pollination and plant reproduction in the Cerrado, the world's most biodiverse savanna

Biological Reviews, Volume 101, Issue 1, Page 74-105, February 2026.
ABSTRACT The Brazilian Cerrado is a continental‐wide biodiversity hotspot and the most species‐rich savanna ecosystem in the world. The main aspect characterising this biodiversity is that the landscape is arranged as an intricate mosaic of different plant formations, including grasslands, savannas, and forests, each harbouring distinct but ...
João C. F. Cardoso, Renata Trevizan, Pietro K. Maruyama, Ana P. S. Caetano, Rogério V. Gonçalves, Yasmine Antonini, Paulo E. Oliveira   +6 more
wiley   +1 more source

Phenanthrene Alkaloids From Guatteria Olivacea as Topoisomerase II Inhibitors: Theoretical Insights and Cytotoxic Evaluation

ChemistrySelect, Volume 11, Issue 2, 15 January 2026.
Three phenanthrene alkaloids from Guatteria olivacea were studied by DFT, docking, MD, and cytotoxicity assays. All compounds showed stable binding to DNA–topoisomerase II and human serum albumin. Atherosperminine exhibited cytotoxic activity against four cancer cell lines, supporting its potential as a topoisomerase II inhibitor and anticancer ...
Renyer A. Costa, Victor L. Tananta, Ianni de O. Corrêa, Jamelah S. Al‐Otaibi, Y. Sheena Mary, Milena Botelho P. Soares, Daniel P. Bezzera, Morgana de S. Araújo, Emmanoel V. Costa   +8 more
wiley   +1 more source

The glandular hairs within the floral tube of Paederia foetida (Rubiaceae) and their influence on ant accessibility

Plant Species Biology, Volume 41, Issue 1, January 2026.
The glandular hairs in the floral tube of Paederia foetida has an effect on an ant's ability to enter a flower. Our results showed that trimming the glandular hairs increased the success rate of ants entering the floral tube. Abstract Hairs that grow on plant organs have been shown to play a variety of roles. Paederia foetida (Rubiaceae) is a perennial
Yuichi Matsushita, Okihito Yano
wiley   +1 more source