Results 31 to 40 of about 519 (135)

Cyto-Embryological Analysis of Wild Kentucky Bluegrass Germplasm in Gansu Province, China

open access: yesAgronomy, 2023
Reproduction studies, particularly embryology, represent basic information of any plant. However, the current embryological information is fragmentary for Kentucky bluegrass (Poa pratensis L.).
Jinqing Zhang, Huiling Ma
doaj   +1 more source

Microsporogenesis and microgametogenesis of the Argentinian species ofPodocarpus(Podocarpaceae) [PDF]

open access: yesBotanical Journal of the Linnean Society, 1996
Abstract The development of the microsporangium and male gametophyte of three species of Podocarpus was studied with light microscopy (LM) and the morphology of pollen with scanning and transmission electron microscopy (SEM and TEM). During early stages, the male cone is covered with coriaceous scales.
openaire   +1 more source

Optical and ultrastructural study of the pollen grain development in hermaphrodite papaya tree (Carica papaya L.)

open access: yesBrazilian Archives of Biology and Technology, 2008
The objective of this study was to describe the pollen grain development in hermaphrodite papaya tree. The flower buds were collected at different stages of the development and the anthers were treated chemically for observation under optical and ...
Lídia Márcia Silva Santos   +7 more
doaj   +1 more source

Arabidopsis COG Complex Subunits COG3 and COG8 Modulate Golgi Morphology, Vesicle Trafficking Homeostasis and Are Essential for Pollen Tube Growth. [PDF]

open access: yesPLoS Genetics, 2016
Spatially and temporally regulated membrane trafficking events incorporate membrane and cell wall materials into the pollen tube apex and are believed to underlie the rapid pollen tube growth.
Xiaoyun Tan   +17 more
doaj   +1 more source

Starch distribution in anthers, microspores and pollen grains in Aechmea recurvata (Klotzsch.) L.B.Sm., Dyckia racinae L.B.Sm. and Tillandsia aeranthos (Loisel.) L.B.Sm. (Bromeliaceae)

open access: yesActa Botânica Brasílica, 2015
This paper presents a comparative description of the starch distribution in the anthers, microspores and pollen grains of Aechmea recurvata, Dyckia racinae and Tillandsia aeranthos.
João Marcelo Santos de Oliveira   +3 more
doaj   +1 more source

Pollen Development and Stainability in Vicia faba L. and Lupinus angustifolius L.

open access: yesAgriculture, 2023
Commercially, leguminous crops (Fabaceae) are the second most important group of cultivated plants, just after grasses (Poaceae). This study focuses on the analysis of pollen development and stainability in two species belonging to the Fabaceae family ...
Wiktor Skrzypkowski   +3 more
doaj   +1 more source

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

open access: yesPLoS 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   +5 more
doaj   +1 more source

Systematic analysis of Plasmodium myosins reveals differential expression, localisation, and function in invasive and proliferative parasite stages

open access: yesCellular Microbiology, Volume 21, Issue 10, October 2019., 2019
Very little was known about the family of six myosins in malaria‐causing parasites, except for a role of one in motility. We show here that myosins have a diverse pattern of expression and subcellular location through the parasite life cycle in both the mammalian host and mosquito vector.
Richard J. Wall   +9 more
wiley   +1 more source

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

open access: yesPLoS 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   +5 more
doaj   +1 more source

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

open access: yesJournal 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   +5 more
wiley   +1 more source

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