Results 11 to 20 of about 30,247 (213)

Evolución desarrollo embrionario y psiquismo

Revista Latinoamericana de Bioética, 2009
El siguiente artículo intenta establecer nexos y relaciones que se dan entre la evolución del homínido prehumano como la base del psiquismo propiamente humano y mostrar cómo los cambios que son hereditariamente transmitidos, han de producirse físicamente
Diego Germán Pérez Villamarín
doaj   +1 more source

DESARROLLO EMBRIONARIO DE Gonatodes albogularis (SPHAERODACTYLIDAE): TABLA DE DESARROLLO

Acta Biológica Colombiana
El estudio del desarrollo embrionario animal es de gran interés como base para estudios comparativos a nivel anatómico, fisiológico y evolutivo. El gecko de cabeza amarilla Gonatodes albogularis es un lagarto enano diurno con una amplia distribución en ...
Fabián Mauricio Sandoval-Jaimes, Martha Patricia Ramírez-Pinilla   +1 more
doaj   +2 more sources

Desarrollo embrionario de Lutzomyia longipalpis (Diptera: Psychodidae), bajo condiciones de laboratorio

Intropica, 2019
Lutzomyia longipalpis es el principal vector de la leishmaniasis visceral en las Américas. Durante seis días se hizo seguimiento al desarrollo de los huevos de L. longipalpis bajo condiciones experimentales.
Judier Karelly Melgarejo-Colmenares, Ronald López, Olga L. Cabrera-Quintero   +2 more
doaj   +4 more sources

Global warming facilitates the nesting of the loggerhead turtle on the Mediterranean coast of Spain

Animal Conservation, Volume 26, Issue 3, Page 365-380, June 2023., 2023
Average summer sand temperature (July 20th–August 10th) at 40 cm deep in Spanish Mediterranean beaches, as reconstructed from air temperature at El Prat beach, has increased from 1950 to 2019 (top figure). As a result, the duration of the viable nesting window for loggerhead turtles (bottom figure) has also increased and the thermal environment has ...
L. Cardona, J. San Martín, L. Benito, J. Tomás, E. Abella, J. Eymar, M. Aguilera, J. A. Esteban, A. Tarragó, A. Marco   +9 more
wiley   +1 more source

Ovule cell wall composition is a maternal determinant of grain size in barley

New Phytologist, Volume 237, Issue 6, Page 2136-2147, March 2023., 2023
Summary In cereal species, grain size is influenced by growth of the ovule integuments (seed coat), the spikelet hull (lemma and palea) and the filial endosperm. Whether a highly conserved ovule tissue, the nucellus, has any impact on grain size has remained unclear.
Xiujuan Yang, Laura G. Wilkinson, Matthew K. Aubert, Kelly Houston, Neil J. Shirley, Matthew R. Tucker   +5 more
wiley   +1 more source

Mitigating the effects of climate change on the nests of sea turtles with artificial irrigation

Conservation Biology, Volume 37, Issue 1, February 2023., 2023
Abstract For sea turtles, like many oviparous species, increasing temperatures during development threaten to increase embryonic mortality, alter offspring quality, and potentially create suboptimal primary sex ratios. Various methods are being implemented to mitigate the effects of climate change on reproductive success, but these methods, such as ...
Christopher R. Gatto, Sean A. Williamson, Richard D. Reina   +2 more
wiley   +1 more source

Identification of key regulatory genes involved in the sporophyte and gametophyte development in Ginkgo biloba ovules revealed by in situ expression analyses

American Journal of Botany, Volume 109, Issue 6, Page 887-898, June 2022., 2022
Abstract Premise In Arabidopsis thaliana, the role of the most important key genes that regulate ovule development is widely known. In nonmodel species, and especially in gymnosperms, the ovule developmental processes are still quite obscure. In this study, we describe the putative roles of Ginkgo biloba orthologs of regulatory genes during ovule ...
Greta D'Apice, Silvia Moschin, Sebastiano Nigris, Riccardo Ciarle, Antonella Muto, Leonardo Bruno, Barbara Baldan   +6 more
wiley   +1 more source

The role of pollination in controlling Ginkgo biloba ovule development

New Phytologist, Volume 232, Issue 6, Page 2353-2368, December 2021., 2021
Summary Generally, in gymnosperms, pollination and fertilization events are temporally separated and the developmental processes leading the switch from ovule integument into seed coat are still unknown. The single ovule integument of Ginkgo biloba acquires the typical characteristics of the seed coat long before the fertilization event. In this study,
Greta D’Apice, Silvia Moschin, Fabrizio Araniti, Sebastiano Nigris, Maurizio Di Marzo, Antonella Muto, Camilla Banfi, Leonardo Bruno, Lucia Colombo, Barbara Baldan   +9 more
wiley   +1 more source

Heat stress response mechanisms in pollen development

New Phytologist, Volume 231, Issue 2, Page 571-585, July 2021., 2021
Summary Being rooted in place, plants are faced with the challenge of responding to unfavourable local conditions. One such condition, heat stress, contributes massively to crop losses globally. Heatwaves are predicted to increase, and it is of vital importance to generate crops that are tolerant to not only heat stress but also to several other ...
Palak Chaturvedi, Anna J. Wiese, Arindam Ghatak, Lenka Záveská Drábková, Wolfram Weckwerth, David Honys   +5 more
wiley   +1 more source

Características espacio-temporales del desarrollo embrionario preimplantacional de Myocastor coypus (coipo)

Ciencia, Docencia y Tecnología, 2006
El objetivo de este trabajo fue caracterizar el desarrollo preimplantacional del coipo (Myocastor coypus). Se realizó el seguimiento colpocitológico y apareamiento dirigido de 33 hembras.
Antonio E. Felipe
doaj   +1 more source