Results 31 to 40 of about 1,019 (196)

Transcriptome sequencing data provide a solid base to understand the phylogenetic relationships, biogeography and reticulated evolution of the genus Zamia L. (Cycadales: Zamiaceae). [PDF]

Ann Bot
BACKGROUND AND AIMS Cycad is a key lineage to understand the early evolution of seed plants and their response to past environmental changes. However, tracing the evolutionary trajectory of cycad species is challenging when the robust relationships at ...
Lindstrom A, Habib S, Dong S, Gong Y, Liu J, Calonje M, Stevenson D, Zhang S.   +7 more
europepmc   +2 more sources

Evolutionary Signal of Leaflet Anatomy in the Zamiaceae [PDF]

International Journal of Plant Sciences, 2020
Premise of research: The morphology of leaves is shaped by both historical and current selection acting on constrained developmental systems. For this reason, the phylogenetic signal of these characters is usually overlooked. Methodology: We investigate morphology of the leaflets of all genera of the Zamiaceae using multiple microscopical techniques to
Coiro, Mario, Jelmini, Nicola, Neuenschwander, Hanna, Calonje, Michael A, Vovides, Andrew P, Mickle, James E, Barone Lumaga, Maria Rosaria   +6 more
openaire   +2 more sources

Ecological Isolation Maintains the Species Boundaries Between Two Sympatric <i>Cycas</i> From Southwest China. [PDF]

Ecol Evol
The study reveals that sympatric Cycas species (C. pectinata and C. simplicipinna) maintain strict species boundaries without hybridization, driven by reproductive isolation mechanisms (divergent coning times and pollinator specificity) and ecological niche differentiation (habitat preferences, soil pH differences).
Zheng F, Wang Y, Xi H, Xiao S, Feng X, Gong X, Liu J.   +6 more
europepmc   +2 more sources

HERBIVORÍA EN UNA GIMNOSPERMA ENDÉMICA DE COLOMBIA, ZAMIA ENCEPHALARTOIDES (ZAMIACEAE) POR PARTE DE EUMAEUS (LEPIDOPTERA: LYCAENIDAE)

Revista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales, 2023
Zamia encephalartoides (Zamiaceae), endémica de un enclave andino seco en Colombia, es conocida a partir de pocas poblaciones en áreas intervenidas y geológicamente inestables, por lo cual está en riesgo de extinción.
Favio González
semanticscholar   +1 more source

A Phytochemical and Biological Investigation of Some Plants Belong to Cycadales Order Cultivated in Egypt: Thesis Abstract [PDF]

Egyptian Journal of Cancer and Biomedical Research, 2021
Background: Gymnosperms are naked seed-producing plants and still a dark area in scientific researches although they considered as a rare gift of the nature. Cycads are one of the largest groups of living Gymnosperms.
Walaa Negm, Kamilia Abo El-Seoud, Amal Kabbash, Mona El-Aasr   +3 more
doaj   +1 more source

Cryptic signals: substomatal architecture influences stomatal responses to red light and CO2 [PDF]

new phytologist
Summary The mesophyll provides a critical signal for stomatal responses to red light (RL) and CO2 in angiosperms. By contrast, the stomatal response to blue light (BL) is largely guard cell‐specific. It is not known whether substomatal or mesophyll anatomy influences the effectiveness of the mesophyll signal driving stomatal responses to RL and CO2 ...
Haroon M, Ivsic C, Sussmilch F, Manandhar A, McAdam S.   +4 more
europepmc   +2 more sources

Zamia floridana Coontie

EDIS, 2007
This publication provides a comprehensive overview of the coontie plant, a native Florida species also known as Zamia pumila. The document details the plant’s characteristics, including its feather-like, leathery foliage that emerges from a large ...
Edward Gilman
doaj   +1 more source

Zamia furfuracea Cardboard Plant, Cardboard Cycad

EDIS, 2007
The publication provides detailed information about the cardboard plant, also known as Zamia furfuracea. This plant features rigid, woody, medium-green foliage that forms a loose, symmetrical rosette. It is well-suited for tropical landscapes, container
Edward Gilman
doaj   +1 more source

Zamia multidentata (Cycadales, Zamiaceae), a new arborescent species of Zamia from Acre, Brazil

Phytotaxa, 2023
Zamia multidentata is described and illustrated here as a new species from the Amazon basin, state of Acre, Brazil. The new species shares morphological similarities with the Amazonian species Z. hymenophyllidia, and Z. urep, to which it is compared. The
R. Segalla, R. Pimenta, M. Calonje
semanticscholar   +1 more source

Conservation genomics of Dioon holmgrenii (Zamiaceae) reveals a history of range expansion, fragmentation, and isolation of populations

Conservation Genetics, 2023
Many Cycad species may not survive the current extinction crisis, despite belonging to the oldest living seed plant lineage. Conservation of endangered and threatened species will require a combination of in situ and ex situ programs, both of which will ...
Brian L. Dorsey, Silva H. Salas-Morales, Timothy Gregory   +2 more
semanticscholar   +1 more source