Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
137
datasets available to search
ShareScore release 0.7.1
Dataset results
137 results for “Spermatozoa”
Figure 9 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 9 TEM micrographs of sperm tail region of P. kaempferi. A Longitudinal section through the neck and tail regions, showing nucleus (n), centriolar adjunct (ca), mitochondrial derivative (md), centriole (c) and axoneme (ax) B Higher magnification of longitudinal section of sperm tail, showing axoneme (ax) and mitochondrial derivatives with cristae (cr) C Cross-section of tail region, showing two mitochondrial derivatives (md) and a 9 + 9 + 2 microtubular pattern (i.e., 9 accessory microtubules (am), 9 double microtubules (dm), and two central microtubules (cm)) axoneme (ax) D Higher magnification of cross-section of axoneme (ax), showing 9 double microtubules (dm), and two central microtubules left E Higher magnification of cross-section of axoneme (ax) showing only 9 double microtubules (dm) remained. Scale bars: 1 μm (A), 200 nm (B, C), 100 nm (D, E).
Figure 8 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 8 TEM micrographs of sperm neck region of P. kaempferi. A Longitudinal section showing head region, showing conical acrosome (a) and tapered nucleus (n) B Longitudinal section of nucleus-flagellum transition region, showing nucleus (n), mitochondrial derivative (md) and centriole (c) C Cross-section of nucleus (n) with a deltoid appearance D Cross-section through the mid-neck region, showing an invagination at one side of the nucleus (n) developing two ridges (arrowed) E–G Cross-sections through neck region, showing centriolar adjunct (ca) and nucleus (n). H Cross-section through the mid-neck region, showing nucleus (n), mitochondrial derivatives (md) and centriolar adjunct (ca). Scale bars: 500 nm (A), 200 nm (B–H).
Figure 6 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 6 TEM sections through the neck and tail regions of the spermatozoa of K. caelatata. A Longitudinal section through the neck region showing nucleus (n), centriolar adjunct (ca), centriole (c), axoneme (ax) and mitochondrial derivatives (md) B Cross-section through the mid-neck region, showing one side of the nucleus forms two ridges. C and D Cross-sections through the posterior part of nucleus, showing centriolar adjunct (ca) flanked nucleus (n) E Cross-section of the base of the nucleus, showing triangular nucleus (n) and two mitochondrial derivatives (md) embedded into the material of the centriolar adjuncts (ca) F Cross-section through sperm tails, showing mitochondrial derivatives with distinct diameters G Longitudinal section of sperm tail, showing paired mitochondrial derivatives (md). Scale bars: 1 μm (A, F), 200 nm (B–E, G).
Figure 5 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 5 TEM micrographs of sperm head region of K. caelatata. A Longitudinal section of head region, showing the head region (including acrosome (a) and nucleus (n)) inserted into a homogenous matrix (ma) B Cross-section through the acrosome (a), showing the subacrosomal space (ss) located at an eccentric position of acrosome C Cross-section through the acrosome, showing the nucleus (n) located at an eccentric position of acrosome D–F Cross-sections through the posterior region of the acrosome (a), showing two acrosomal processes and the nucleus (n) G Lower magnification of cross-section through spermatodesmata, showing different transverse sections of spermatozoa. Scale bars: 2 μm (A, G), 100 nm (B–F).
Figure 7 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 7 TEM micrographs of sperm head region of P. kaempferi. A Longitudinal section of sperm head, showing apex of acrosome (a), tapered nucleus (n) B Cross-section of the sperm head, showing acrosome (a) and subacrosomal space (ss) C–F Cross-sections of the sperm head, showing acrosome (a) and two acrosomal processes with numerous microtubules G Cross-section of the sperm head, showing nucleus (n) and an acrosomal process. Scale bars: 500 nm (A), 200 nm (B–G).
Figure 4 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 4 TEM micrographs of S. yangi sperm tail region. A Longitudinal section of sperm tail, showing axoneme (ax) and mitochondrial derivative (md) B Cross-section through the tail region, showing axoneme (ax) and mitochondrial derivatives (md) with crystalline region (cry) C Magnified cross-section of axoneme (ax), showing axoneme with a normal 9 + 9 + 2 arrangement of microtubules, i.e., 9 accessory microtubules (am), 9 double microtubules (dm) and 2 central microtubules D Cross-section of the terminal end of the sperm tail, showing paired mitochondrial derivatives (md) and axoneme (ax) with 9 accessory microtubules and 9 double microtubules left E Cross-section of the terminal end of the sperm tail, showing parts of microtubules of axoneme left. Scale bars: 500 nm (A), 200 nm (B), 100 nm (C–E).
Figure 1 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 1 Epifluorescent microscope images of spermatozoa stained with Hoechst 33258. A Spermatozoon of Subpsaltria yangi with a head and a tail (t) B Spermatozoon of Platypleura kaempferi with a short head (h) and an elongated tail C Slender spermatozoa of Karenia caelatata with a head and a tail D Spermatozoa of S. yangi aggregated into bundles. Scale bars: 20 μm.
Figure 2 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 2 TEM micrographs of S. yangi sperm head region. A Longitudinal section of sperm head, showing the head region (including acrosome (a) and nucleus (n)) inserted into a homogenous matrix (ma) B Cross-section through the tip of acrosome (a), showing acrosome is surrounded by a homogenous matrix (ma) C Cross-section through the mid-acrosome (a), showing acrosome (a) and subacrosomal space (ss) D and E Cross-sections of base of acrosome (a), showing nucleus (n) and two acrosomal processes F Cross-section through circular nucleus (n). Scale bars: 500 nm (A), 200 nm (B–F).
Figure 3 from: Cui B, Wei C (2018) Ultrastructure of spermatozoa in three cicada species from China (Hemiptera, Cicadomorpha, Cicadidae). ZooKeys 776: 61-80. https://doi.org/10.3897/zookeys.776.26966
Figure 3 TEM micrographs of S. yangi sperm neck region. A Longitudinal section of the neck region, showing nucleus (n), centriole (c), granular centriolar adjunct (ca) and mitochondrial derivatives (md) B Cross-section anterior of the neck region, showing nucleus (n) C and D Cross-sections of the mid-neck region, showing nucleus (n) and centriolar adjunct (ca) E Cross-section through the terminal end of neck region, showing an eliptical nucleus (n) and a granular centriolar adjunct (ca) F Cross-section through the terminal end of neck region, showing a nucleus (n) and two mitochondrial derivatives (md) G Magnified longitudinal section of neck region, showing granular centriolar adjunct (ca) next to nucleus (n). Scale bars: 500 nm (A, F, G), 200 nm (B–E).
VISEM: A Multimodal Video Dataset of Human Spermatozoa
<p>Real multimedia datasets that contain more than just images or text are rare. Even more so are open multimedia datasets in medicine. Often, clinically related datasets only consist of image or videos. We present a dataset that is novel in two ways. Firstly, it is a multi-modal dataset containing different data sources such as videos, biological analysis data, and participant data. Secondly, it is the first dataset of that kind in the field of human reproduction. It consists of anonymized data from 85 different participants. We hope this dataset will inspire people to apply their knowledge in this important field, generate shareable results in the domain, and ultimately improve human infertility investigation and treatment.</p>
Data from: Acclimation temperature changes spermatozoa flagella length relative to head size in brown trout
Temperature is a ubiquitous environmental factor affecting physiological processes of ectotherms. Due to the effects of climate change on global air and water temperatures, predicting the impacts of changes in environmental thermal conditions on ecosystems is becoming increasingly important. This is especially crucial for migratory fish, such as the ecologically and economically vital salmonids, because their complex life histories make them particularly vulnerable. Here, we addressed the question whether temperature affects the morphology of brown trout, Salmo trutta L. spermatozoa. The fertilising ability of spermatozoa is commonly attributed to their morphological dimensions, thus implying direct impacts on the reproductive success of the male producing the cells. We show that absolute lengths of spermatozoa are not affected by temperature, but spermatozoa from warm acclimated S. trutta males have longer flagella relative to their head size compared to their cold acclimated counterparts. This did not directly affect sperm swimming speed, although spermatozoa from warm acclimated males may have experienced a hydrodynamic advantage at warmer temperatures, as suggested by our calculations of drag based on head size and sperm swimming speed. The results presented here highlight the importance of increasing our knowledge of the effects of temperature on all aspects of salmonid reproduction in order to secure their continued abundance.
Fig. 3. A in Ultrastructure of the Spermatozoa in the Spider Genus Pimoa: New Evidence for the Monophyly of Pimoidae plus Linyphiidae (Arachnida: Araneae)
Fig. 3. A. Pimoa laurae. Detail of testis; arrows to junctions of the somatic cells. B–C. Pimoa altioculata. B. Detail of deferent duct. C. Detail of seminal fluid. D. Pimoa laurae. Detail of seminal fluid; arrow to lateral projection of cleistospermium. E. Pimoa curvata. Detail of seminal fluid. Abbreviations: BL, basal lamina; CS, cleistospermium; LuD, lumen of deferent duct; LuT, lumen of testis; MV, microvilli; N, nucleus; Sec, secretion; V, vesicle.
Data from: Acclimation temperature changes spermatozoa flagella length relative to head size in brown trout
Open the record for dataset details and reuse information.
Data from: Spermatozoa scattering by a microchannel feature: an elastohydrodynamic model
Open the record for dataset details and reuse information.
Identification and Characterization of MicroRNAs in Zebrafish Spermatozoa by Illumina Sequencing
GEO Series GSE61984. Danio rerio. 1 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Whole genome bisulfite sequencing of human spermatozoa reveals differentially methylated patterns from type 2 diabetic patients
GEO Series GSE138598. Homo sapiens. 17 samples. Type: Methylation profiling by high throughput sequencing.
Effect of divergence in fertility on miRNA profIling in spermatozoa of bulls
GEO Series GSE196750. Bos taurus. 20 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Generation of functional rat spermatozoa in sterile mice utilizing blastocyst complementation with pluripotent stem cells [scRNAseq_mouse]
GEO Series GSE167434. Mus musculus. 3 samples. Type: Expression profiling by high throughput sequencing.
Ancestral gestational exposure to widely used neonicotinoid thiacloprid leads to global DNA methylation alterations in spermatozoa in three generations of male mice [RNA-Seq]
GEO Series GSE235213. Mus musculus. 12 samples. Type: Expression profiling by high throughput sequencing.
Tobacco-induced microRNAs profile alterations in human spermatozoa: a preliminary study for further knowledge of toxical spermatogenesis impairment
GEO Series GSE44134. Homo sapiens. 8 samples. Type: Non-coding RNA profiling by array.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.