Results 41 to 50 of about 554 (149)

Development of Eimeria nieschulzi (Coccidia, Apicomplexa) Gamonts and Oocysts in Primary Fetal Rat Cells

Journal of Parasitology Research, Volume 2013, Issue 1, 2013., 2013
The in vitro production of gametocytes and oocysts of the apicomplexan parasite genus Eimeria is still a challenge in coccidiosis research. Until today, an in vitro development of gametocytes or oocysts had only been shown in some Eimeria species. For several mammalian Eimeria species, partial developments could be achieved in different cell types, but
Hong Chen, Stefanie Wiedmer, Sacha Hanig, Rolf Entzeroth, Michael Kurth, Renato A. Mortara   +5 more
wiley   +1 more source

Imaging malaria parasites across scales and time

Journal of Microscopy, Volume 301, Issue 2, Page 122-150, February 2026.
Abstract The idea that disease is caused at the cellular level is so fundamental to us that we might forget the critical role microscopy played in generating and developing this insight. Visually identifying diseased or infected cells lays the foundation for any effort to curb human pathology.
Julien Guizetti
wiley   +1 more source

Pollen, Tapetum, and Orbicule Development in Colletia paradoxa and Discaria americana (Rhamnaceae)

The Scientific World Journal, Volume 2012, Issue 1, 2012., 2012
Tapetum, orbicule, and pollen grain ontogeny in Colletia paradoxa and Discaria americana were studied with transmission electron microscopy (TEM). The ultrastructural changes observed during the different stages of development in the tapetal cells and related to orbicule and pollen grain formation are described.
M. Gotelli, B. Galati, D. Medan, Harsh P. Bais   +3 more
wiley   +1 more source

Cytology and Kinetics of microgametogenesis and fertilization in Plasmodium yoelii nigeriensis

Parasitology, 1975
The sexual development of the microgametocyte of Plasmodium yoelii nigeriensis may be subdivided into microgametogenesis which includes exflagellation, dispersal of the gametes and fertilization. Under our experimental conditions microgametogenesis takes about 8–15 min at 20 °C, the duration of this period being inversely related to temperature ...
R E, Sinden, N A, Croll
openaire   +2 more sources

Female inheritance of malarial lap genes is essential for mosquito transmission. [PDF]

PLoS Pathogens, 2007
Members of the LCCL/lectin adhesive-like protein (LAP) family, a family of six putative secreted proteins with predicted adhesive extracellular domains, have all been detected in the sexual and sporogonic stages of Plasmodium and have previously been ...
J Dale Raine, Andrea Ecker, Jacqui Mendoza, Rita Tewari, Rebecca R Stanway, Robert E Sinden   +5 more
doaj   +1 more source

THE USE OF MALE STERILITY OF OGURA TYPE IN RADISH BREEDING FOR HETEROSIS

Овощи России, 2011
The morphological marker characteristics of the flower and cytological features of microgametogenesis and microsporo-genesis in sterile plants have been studied to identify and select plants bearing Ogura male sterility type.
M.I. Fedorova, T.V. Zhayachkovskaya
doaj   +1 more source

Imaging of Molecular and Developmental Responses to Abiotic Stresses in Reproductive Tissues

Physiologia Plantarum, Volume 178, Issue 1, January/February 2026.
ABSTRACT Abiotic stresses, such as drought, salinity, and extreme temperatures, have profound effects on plant reproduction, often leading to reduced fertility and yield. Reproduction in plants involves complex interactions between diverse cells, necessitating spatiotemporal resolution to understand how stress impacts each component of this intricate ...
Hana Daryanavard, Teresa Paraiso, María Cielo Pasten, Bianca Maria Orlando Marchesano, Marta Adelina Mendes, Hélène S. Robert, Francesca Resentini, Joëlle K. Mühlemann   +7 more
wiley   +1 more source

Comparative insights into molecular pathways influencing germline development in early‐divergent angiosperms

The Plant Journal, Volume 125, Issue 2, January 2026.
SUMMARY The molecular and genetic mechanisms regulating female germline development remain largely unknown in basal and early‐divergent angiosperms. This contrasts with recent progress in model eudicots such as Arabidopsis thaliana and monocots, such as rice, barley, and maize. In this study, we investigate the genetic pathway governing female germline
Jorge Lora, Matthew R. Tucker, Neil J. Shirley, Chao Ma, José I. Hormaza   +4 more
wiley   +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

Anther and ovule development of Clematis serratifolia (Ranunculaceae)-with new formation types in megaspore and nucellus.

PLoS ONE, 2020
Morphological indices of vegetative organs or reproductive organs, which are often used to analyze the evolution and classify Clematis, indicate that Clematis serratifolia and C. glauca could be related members at similar evolutionary levels.
Yi Yang, Jie Sun, Xiao Guo, Kuiling Wang, Qinghua Liu, Qingchao Liu   +5 more
doaj   +1 more source