Results 81 to 90 of about 6,251 (214)

Spatial distribution pattern of the endangered endemic cycad Ceratozamia fuscoviridis (Zamiaceae) in central Mexico

Plant Species Biology, Volume 40, Issue 6, Page 572-583, November 2025.
Spatial distribution pattern were studied for Ceratozamia fuscoviridis, an endangered species in Mexico, based on Ripley's K t and K 12 analysis. Clumped spatial distribution patters was found in individuals of all populations, suggesting low interaction with predators/dispersers and/or evidence of suitable microsites for cycads.
María Teresa Pulido Silva, Juan Carlos Flores‐Vázquez, Maricela Vargas‐Zenteno, Aurelia Vite Reyes, Andrew P. Vovides   +4 more
wiley   +1 more source

Bio-adsorption of Cationic-Cnionic Dyes from Synthetic Effluents using an Experimental Design Approach

Desalination and Water Treatment
In the current research, Cycas leaves powder (CL) as a low-cost agro-waste adsorbent was investigated for malachite green (MG) and Indigo Carmine (IC) dye removal from contaminated water.
Sami D. Salman, Zyad R. Zair, Ziad T. Alismaeel   +2 more
doaj   +1 more source

The complete chloroplast genome of Cycas Szechuanensis, an extremely endangered species

Mitochondrial DNA. Part B. Resources, 2018
In this study, we determined the complete chloroplast genome of Cycas szechuanensis (Cycadaceae, Cycas) using the Illumina sequencing data. The genome is 162,083 bp in length, including a pair of inverted repeats (IRs) of 25,003 bp each, which are ...
Yaling Wang, Zefu Wang, Lei Zhang, Xiaoyue Yang   +3 more
doaj   +1 more source

Progress in the study of dioecy in Mexican cycad species and its implications for conservation

Plant Species Biology, Volume 40, Issue 6, Page 556-571, November 2025.
Cycads are endangered dioecious plants of great ornamental value that have a long period of sexual maturity. Therefore, it is crucial to have methods for early sex determination that can help to develop effective strategies for their conservation. Abstract Dioecy is a system of sexual reproduction in plants, characterized by the spatial separation of ...
Lourdes Georgina Iglesias Andreu, María Ydelia Sánchez‐Tinoco, Miguel Angel Perez‐Farrera   +2 more
wiley   +1 more source

Zamia inermis, the more threatened cycad of Mexico [PDF]

, 2017
Zamia inermis (Zamiaceae) es una cícada rara, endémica y actualmente listada en Peligro Crítico de Extinción. De la misma, sólo se conoce una población compuesta de tres subpoblaciones, que se encuentra distribuido en tan sólo 2,5 km2 de pastizales y ...
Iglesias Andreu, Lourdes Georgina, Octavio Aguilar, Pablo, Rivera-Fernández, Andrés, Vovides, Andrés P.   +3 more
core   +2 more sources

Preface of Special Feature “Current topics on cycad biology: Deciphering the Rosetta Stone of plant evolution.” Part II: Perspectives from natural history

Plant Species Biology, Volume 40, Issue 6, Page 527-529, November 2025.
Often regarded as “living fossils,” cycads are well known for retaining many ancestral traits, which makes them particularly fascinating to naturalists and scientists alike. Cycads provide insights into the functional and developmental processes underlying the origin and diversification of seed plants, and they may help clarify how they colonized the ...
José Said Gutiérrez‐Ortega
wiley   +1 more source

Discovery of a new sub-population, mapping and updated Red List assessment of the Endangered Cycas beddomei Dyer (Cycadales: Cycadaceae)

Journal of Threatened Taxa, 2015
A new sub-population of Cycas beddomei Dyer (Cycadaceae), hitherto believed to be endemic to the Seshachalam Hills (Tirupati-Kadapa Hills) of Andhra Pradesh is discovered from Velikonda Hills (Nellore-Kadapa districts) of Andhra Pradesh.
B. Ravi Prasad Rao, M. Chennakesavulu Naik, S. Salamma, M. V. Suresh Babu   +3 more
doaj   +3 more sources

Management Characteristics and Adoption Index of Indigenous Agricultural Practices by Rice Farmers [PDF]

, 2016
The study was conducted in Vellore district of Tamil Nadu, to assess the relationship between Management characteristics of farmers and their adoption of Indigenous Agricultural Practices (IAPs) in Rice cultivation.
Jayakumar, N., Sundaramari, M.
core   +2 more sources

Three Flavonoids from Cycas Revoluta

Proceedings of The 2nd International Conference on Intelligent Systems and Image Processing 2014, 2014
Three flavonoids compounds, 5,6,7,8,3',4'- hexamethoxyflavone (1) 、 5,6,7,8,4’-pentamethoxyflavon (2)、7,3’- dihydroisofavones (3) were isolated from the Traditional Chinese medicine Cycas revojuta for the first time, and their structures were established on the basis of spectroscopic methods.
Ying Xu, Qichang Dai, Zongze Luan, Zheng Xiang, Jian Wu, Yuling Fan   +5 more
openaire   +2 more sources

Chemical constituents of Cycas vespertilio

Revista Brasileira de Farmacognosia, 2015
AbstractChemical investigation of Cycas vespertilio A. Lindstr. & K.D. Hill, Cycadaceae, a plant endemic to the Philippines, yielded pinoresinol (1), sesamin (2), paulownin (3), a mixture of β-sitosterol and stigmasterol, and triacylglycerols from the cone base; 1, 3, β-sitosterol, stigmasterol, triacylglycerols, and lariciresinol (4) from the ...
Ragasa, Consolacion Yasaña, Ng, Vincent Antonio Santos, Agoo, Esperanza Maribel Guiao, Shen, Chien-Chang   +3 more
openaire   +2 more sources