Results 61 to 70 of about 521 (165)

Narcissus (Amaryllidaceae), la evolución de los polimorfismos florales y la conservación más allá de las "listas rojas" Narcissus (Amaryllidaceae), the evolution of flower polymorphisms and conservation beyond the "red lists"

Revista Chilena de Historia Natural, 2002
Se realiza una revisión del significado del género Narcissus (Amaryllidaceae) para explicar los distintos modelos de evolución de la heterostilia, aportándose datos recientes que confirman el buen ajuste que muestra este género a los pasos propuestos en ...
Juan Arroyo
doaj  

Pollen morphology of Waltheria L. (Malvaceae-Byttnerioideae) from Bahia, Brazil

Acta Botânica Brasílica, 2017
Waltheria encompasses about 60 species distributed in Brazil and Mexico. To improve the palynology of the genus, we analyzed 14 species occurring in the Brazilian State of Bahia.
Cristiano Eduardo Amaral Silveira Júnior, Luciene Cristina Lima e Lima, Marileide Dias Saba   +2 more
doaj   +1 more source

Flowering biology of Pulmonaria obscura (Boraginaceae) in Moscow region

Известия высших учебных заведений. Поволжский регион: Естественные науки, 2023
Background. Pulmonaria obscura Dumort. (Suffolk lungwort) is a perennial herbaceous short-rhizome polycarpic plant. Mentions of flowering and pollination characteristics in P. obscura are scarcely found in the literature.
V.N. Godin
doaj   +1 more source

Establishment of an Agrobacterium‐mediated transformation system for the genetic engineering of Linum grandiflorum Desf.

Physiologia Plantarum, Volume 177, Issue 1, January/February 2025.
Abstract Genetic transformation is a powerful tool in plant biotechnology. However, its application is limited to species that are well‐studied and easy to transform. There is a critical need to establish transformation protocols for non‐model species.
Karol Gad, Hanna Levchuk, Christian Kappel, Michael Lenhard   +3 more
wiley   +1 more source

Fenologia, morfologia floral e visitantes de Psychotria brachypoda (Müll. Arg.) Britton (Rubiaceae) em uma área de Floresta Atlântica, Sudeste do Brasil Phenology, floral morphology and visitors of Psychotria brachypoda (Müll. Arg.) Britton (Rubiaceae) in Atlantic Forest, southeastern Brazil

Acta Botânica Brasílica, 2008
No presente estudo foram descritos o padrão fenológico, biologia floral, visitantes florais mais freqüentes e taxa de formação de frutos de Psychotria brachypoda, em uma área de Floresta Atlântica.
Lorena Coutinho Nery Fonseca, Elisângela Medeiros de Almeida, Maria Alice Santos Alves   +2 more
doaj   +1 more source

Heterostyly in Oplonia (Acanthaceae)

Journal of the Arnold Arboretum, 1979
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Long story short

eLife, 2016
One of the genes responsible for producing different "morphs" of primrose flowers has been identified.
John R Pannell, Guillaume Cossard
doaj   +1 more source

THE GENETICAL ARCHITECTURE OF HETEROSTYLY IN PRIMULA SINENSIS [PDF]

Evolution, 1950
Flowering plants show a variety of mechanisms which encourage, or even ensure, the setting of seed by crossrather than by self-pollination. Heterostyly is such an outbreeding device and it is widespread in its occurrence. Heterostyled species may be classified into two groups, the distylic and tristylic, the former being the commoner type.
openaire   +1 more source

Breeding biology and distyly in Palicourea rigida H. B. & K. (Rubiaceae) in the Cerrados of Central Brazil Biologia reprodutiva e distilia em Palicourea rigida H. B. & K. (Rubiaceae) em Cerrados do Brasil Central

Acta Botânica Brasílica, 2010
Distyly is a floral polymorphism more common among the Rubiaceae than in any other angiosperm group. Palicourea rigida is a typically distylous species of the Rubiaceae widely distributed in the Brazilian Cerrados.
Adriana de Oliveira Machado, Ana Palmira Silva, Helder Consolaro, Mariluza A. Granja e Barros, Paulo Eugênio Oliveira   +4 more
doaj   +1 more source

Reproductive studies on ipecac (Cephaelis ipecacuanha (Brot.) A. Rich; Rubiaceae): meiotic behavior and pollen viability

Brazilian Journal of Biology
Reproductive studies were carried out on Brazilian accessions of ipecac, Cephaelis ipecacuanha. Meiotic behavior was studied using the squashing technique.
M. M. Souza, E. R. Martins, T. N. S. Pereira, L. O. Oliveira   +3 more
doaj   +1 more source