Results 81 to 90 of about 2,558 (207)
Frontiers in Genetics, 2019 Historical geology, climatic oscillations, and seed dispersal capabilities are thought to influence the population dynamics and genetics of plants, especially for distribution-restricted and threatened species.
Xin-Hui Wang +7 more
doaj +1 more source
Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.Abstract Paleo‐CO2 proxies are crucial for reconstructing past atmospheric CO2 variations and understanding their impact on Earth's climate, especially in light of anthropogenic climate change. The mechanistic leaf gas exchange model of Franks et al.
H. Morck +3 more
wiley +1 more source
Secondary metabolites from Cycas aenigma [PDF]
, 2015 Chemical investigation of Cycas aenigma, a plant endemic to the Philippines, led to the isolation of squalene (1), a mixture of β-sitosterol (2a) and stigmasterol (2b) from the microsporophyll lamina; and a mixture of 2a and 2b, triacylglycerols (3), and
Agoo, Esperanza Maribel G. +3 more
core
Information on sampling sites of Cycas multipinnata. [PDF]
, 2015 Information on sampling sites of Cycas multipinnata.
Hiep Tien Nguyen (692659) +5 more
core +1 more source
Phytochemical Investigation ofCycas circinalisandCycas revolutaLeaflets: Moderately Active Antibacterial Biflavonoids [PDF]
Planta Medica, 2010 Chemical examination of the methanolic extract of the leaflets of CYCAS CIRCINALIS L. led to the isolation of one new biflavonoid, (2 S, 2'' S)-2,3,2'',3''-tetrahydro-4',4'''-di- O-methylamentoflavone (tetrahydroisoginkgetin; 2), and 15 known compounds, 11 of which are reported for the first time from C. CIRCINALIS.
Abeer, Moawad +6 more
openaire +2 more sources
Patterns of Tree Species Abundance and Diversity on Urban Sidewalks in Macapá, Amapá, Brazil
Ecological Research, Volume 41, Issue 2, March 2026.This study presents the first systematic inventory of street trees in Macapá, Northeastern Brazilian Amazon. Results reveal a dominance of exotic and fruit‐bearing species, low tree density, and a replacement of large canopy trees by smaller ones, indicating potential losses in ecosystem services and the need for more biodiversity‐focused afforestation
Lorena Antunes Jimenez +8 more
wiley +1 more source
Cycas Fushunensis sp. nov. (Cycadaceae) From the Eocene of Northeast China [PDF]
, 2014 A new cycad species, Cycas fushunensis sp. nov., is described from the Lutetian Jijuntun Formation at Fushun Coalmine, Liaoning Province, northeast China, based on a well-preserved partial frond containing about 15 leaflets.
Liu, Yu Sheng (Christopher) +2 more
core +1 more source
A High-Performance Supercapacitor Based on Nitrogen-Doped Porous Carbon Derived from Cycas Leaves
International Journal of Electrochemical Science, 2019 In this work, we proposed a new way to synthesize nitrogen-doped porous carbon materials. Nitrogen-doped porous carbon materials were prepared using cycas leaves as the carbon source and urea as the nitrogen source.
Chaochao Xu +9 more
doaj +1 more source
Fresh and Dry Weight Relations Are Predictors of Cycas micronesica Seed Age
Horticulturae, 2020 Cycas micronesica is a foundation species in several Micronesian islands and its seeds have been a historical source of starch for the island residents.
Thomas E. Marler, Christopher A. Shaw
doaj +1 more source
Journal of Systematics and Evolution, Volume 64, Issue 2, Page 295-312, March 2026.We aimed to conduct phylogenetic analyses of Encephalartos, a cycad genus endemic to Africa, using 3545 single‐copy nuclear genes extracted from transcriptome data, covering 64/65 of the recognized species, along with inference of divergence times using two secondary calibration points.
Sadaf Habib +8 more
wiley +1 more source