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| Description
| - Significant inter-species differences have been already clarified in terms of sperm morphology, seminal plasma characteristics, and mechanism of sperm motility. This project deals with a comparative study on metabolic pathways underlying the processes of energy production and cell defense during maturation and ageing of fish spermatozoa between carp (Cyprinus carpio) and sterlet (Acipenser ruthenus). The spermatozoa of these species are considerably different in terms of duration of sperm motility and sperm structure. The main aim is to investigate metabolic pathway in pre-mature, mature and aged spermatozoa by means of cellular and molecular approaches (biochemical assay of bioenergetic pathways and proteomic analysis). In this regard, factors involved in maintaining spermatozoa in quiescent status with adequate level of nutrients for sperm metabolism and protection of sperm against oxidative attacks will be considered. The results will provide us with basic information about mechanisms of sperm maturation and ageing in fish. (en)
- U spermií ryb byly prokázané významné mezidruhové rozdíly v morfologii spermií, v charakteristikách semenné plazmy a mechanismu motility spermií. Tento projekt je zaměřen na komparativní studii metabolických pochodů u spermií kapra obecného (Cyprinus carpio) a jesetera malého (Acipenser ruthenus), které jsou zásadní pro produkci energie a ochranu spermie během dozrávání a „stárnutí“. Spermie uvedených druhů se podstatně liší v pohyblivosti spermií a struktuře spermie. Cílem je studovat metabolické pochody u „nedozrálých“, „dozrálých“ a „stárnoucích“ spermií prostřednictvím buněčných a molekulárních přístupů (biochemické analýzy bioenergetických pochodů a proteomické analýzy). V tomto ohledu budou sledovány faktory podílející se na udržení spermií v „klidovém stavu“ s příslušnou úrovní živin pro metabolismus a faktory podílející se na ochraně spermií před oxidativními změnami. Výsledky nám zprostředkují základní informace o mechanismech dozrávání a stárnutí spermií ryb.
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| Title
| - Maturation and Ageing of Fish Spermatozoa: A Comparative Study Between Teleostean and Chondrostean Fish Species as Taxonomically Distant Models. (en)
- Dozrávání a stárnutí spermií ryb: Komparativní studie mezi kostnatými a chrupavčitými rybami, tedy taxonomicky vzdálenými modely
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| skos:notation
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| http://linked.open...avai/cep/aktivita
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| http://linked.open...kovaStatniPodpora
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| http://linked.open...ep/celkoveNaklady
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| http://linked.open...datumDodatniDoRIV
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| http://linked.open...i/cep/druhSouteze
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| http://linked.open...ep/duvernostUdaju
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| http://linked.open.../cep/fazeProjektu
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| http://linked.open...ai/cep/hlavniObor
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| http://linked.open...vai/cep/kategorie
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| http://linked.open.../cep/klicovaSlova
| - fish sperm reproduction carp sturgeon (en)
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| http://linked.open...ep/partnetrHlavni
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| http://linked.open...inujicichPrijemcu
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| http://linked.open...cep/pocetPrijemcu
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| http://linked.open...ocetSpoluPrijemcu
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| http://linked.open.../pocetVysledkuRIV
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| http://linked.open...enychVysledkuVRIV
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| http://linked.open...lneniVMinulemRoce
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| http://linked.open.../prideleniPodpory
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| http://linked.open...iciPoslednihoRoku
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| http://linked.open...atUdajeProjZameru
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| http://linked.open.../vavai/cep/soutez
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| http://linked.open...usZobrazovaneFaze
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| http://linked.open...ai/cep/typPojektu
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| http://linked.open...ep/ukonceniReseni
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| http://linked.open.../cep/vedlejsiObor
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| http://linked.open...ep/zahajeniReseni
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| http://linked.open...tniCyklusProjektu
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| is http://linked.open...vavai/riv/projekt
of | - Motility and fertilization ability of sterlet Acipenser ruthenus testicular sperm after cryopreservation
- Motility of fish spermatozoa: from external signaling to flagella response
- Effect of short-term storage on quality parameters, DNA integrity, and oxidative stress in Russian (Acipenser gueldenstaedtii) and Siberian (Acipenser baerii) sturgeon sperm
- Motility of sturgeon spermatozoa can sustain successive activations episodes
- Roles of osmolality, calcium - Potassium antagonist and calcium in activation and flagellar beating pattern of sturgeon sperm
- Comparison of Protein Fractions in Seminal Plasma from Multiple Sperm Collections in Sterlet (Acipenser ruthenus)
- Comparison of oxidant and antioxidant status of seminal plasma and spermatozoa of several fish species
- Different computer-assisted sperm analysis (CASA) systems highly influence sperm motility parameters
- Different swimming behaviors of sterlet (Acipenser ruthenus) spermatozoa close to solid and free surfaces
- Fins improve the swimming performance of fish sperm: A hydrodynamic analysis of the Siberian sturgeon Acipenser baerii
- The in vitro effect of duroquinone on functional competence, genomic integrity, and oxidative stress indices of sterlet (Acipenser ruthenus) spermatozoa
- Hypotonic treatment prior to freezing improves cryoresistance of common carp (Cyprinus carpio L.) spermatozoa
- Influence of environmentally relevant concentrations of vinclozolin on quality, DNA integrity, and antioxidant responses of sterlet Acipenser ruthenus spermatozoa
- In vitro effects of bisphenol A on the quality parameters, oxidative stress, DNA integrity and adenosine triphosphate content in sterlet (Acipenser ruthenus) spermatozoa
- Device for synchronization of LED light flash microscopic illumination with videosignal for videomicroscopic observation and recording
- Evaluation of Spermiation Indices with Multiple Sperm Collections in Endangered Sterlet (Acipenser ruthenus)
- Species-Specificity of Sperm Motility Activation and Chemotaxis: a Study on Ascidian Species
- Toxicity of environmental contaminants to fish spermatozoa function in vitro-A review
- Volume changes during the motility period of fish spermatozoa: Interspecies differences
- Morphology and fine structure of the Russian sturgeon, Acipenser gueldenstaedtii (Acipenseridae, Chondrostei) spermatozoa
- Sperm biology and control of reproduction in sturgeon: (I) testicular development, sperm maturation and seminal plasma characteristics
- Spermatozoa motility, cryoresistance, and fertilizing ability in sterlet Acipenser ruthenus during sequential stripping
- Sperm morphology and biology in sturgeon
- Spermatozoa Motility and Variation in the Seminal Plasma Proteome of Eurasian Perch (Perca fluviatilis) During the Reproductive Season
- Sperm biology and control of reproduction in sturgeon: (II) sperm morphology, acrosome reaction, motility and cryopreservation
- Sperm characteristics and androgens in Acipenser ruthenus after induction of spermiation by carp pituitary extract or GnRHa implants
- Calcium ion supplementation increases brook trout Salvelinus fontinalis spermatozoa activation at the end of the spawning season
- Biological characteristics of sperm in two oyster species: the Pacific Oyster, Crassostrea gigas, and the Black-Lip Pearl Oyster, Pinctada margaritifera
- Opakovaný odběr spermatu jesetera malého a jeho využití při řízené reprodukci
- The role of Ca2+ and Na+ membrane transport in brook trout (Salvelinus fontinalis) spermatozoa motility
- The antioxidant system of sterlet seminal fluid in testes and Wolffian ducts
- Wave propagation in flagella
- Protection of common carp (Cyprinus carpio L.) spermatozoa motility under oxidative stress by antioxidants and seminal plasma
- Použití testikulárního spermatu jeseterovitých ryb
- Atp, the Sperm Movement Energizer
- In vitro sperm maturation in sterlet, Acipenser ruthenus
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| is http://linked.open...vavai/cep/projekt
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