Results 21 to 30 of about 446 (167)
Global warming facilitates the nesting of the loggerhead turtle on the Mediterranean coast of Spain
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 +9 more
wiley +1 more source
Ovule cell wall composition is a maternal determinant of grain size in barley
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 +5 more
wiley +1 more source
Mitigating the effects of climate change on the nests of sea turtles with artificial irrigation
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 +2 more
wiley +1 more source
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 +6 more
wiley +1 more source
En lagartijas ovíparas existe un intervalo frecuente en el desarrollo embrionario que alcanzan los huevos al momento de la oviposición entre el estadio 26 y 33.
Gabriel Suárez-Varón +4 more
doaj +1 more source
The role of pollination in controlling Ginkgo biloba ovule development
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 +9 more
wiley +1 more source
DESARROLLO EMBRIONARIO Y ESTRATEGIAS ANTILUTEOLITICAS HORMONALES EN PROGRAMAS DE TRANSPLANTE DE EMBRIONES BOVINOS [PDF]
Durante el desarrollo embrionario se establecen múltiples interacciones entre hormonas, factores de crecimiento (FC) y diferente tipo de moléculas, con lo cual se genera una serie de señales que desencadenan el reconocimiento materno de preñez (RMP ...
Néstor Tovío L +2 more
doaj +3 more sources
Heat stress response mechanisms in pollen development
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 +5 more
wiley +1 more source
El embrioide y sus leyes. Una breve aproximación al contexto internacional
En los últimos años el desarrollo de modelos in vitro con células madre humanas que simulan el desarrollo embrionario temprano ha vivido un gran progreso.
Marta Reguera Cabezas
doaj +1 more source
Aprendizaje sobre las aves mediante el uso de una incubadora de huevos en un aula de Primaria
En este trabajo se presenta una experiencia didáctica para los primeros cursos de la Educación Primaria, con el objetivo de aprender, de forma activa y participativa, sobre las aves domésticas, especialmente la gallina. El eje central es una actividad de
Belén Camarero Recio +2 more
doaj +1 more source

