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Titolo:
Flowering plant sperm contains a cytosolic soluble protein factor which can trigger calcium oscillations in mouse eggs
Autore:
Li, ST; Huang, XY; Sun, FZ;
Indirizzi:
Chinese Acad Sci, Inst Dev Biol, Lab Mol Dev Biol, Beijing 100080, PeoplesR China Chinese Acad Sci Beijing Peoples R China 100080 g 100080, PeoplesR China
Titolo Testata:
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
fascicolo: 1, volume: 287, anno: 2001,
pagine: 56 - 59
SICI:
0006-291X(20010914)287:1<56:FPSCAC>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
CA2+ OSCILLATIONS; ASCIDIAN OOCYTES; MAMMALIAN EGGS; HAMSTER EGGS; FERTILIZATION; CA-2+; WAVE; INJECTION; XENOPUS; EXTRACT;
Keywords:
calcium oscillations; sperm factor; egg; mouse; Brassica campestris;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Sun, FZ Chinese Acad Sci, Inst Dev Biol, Lab Mol Dev Biol, Beijing 100080,PeoplesR China Chinese Acad Sci Beijing Peoples R China 100080 , PeoplesR China
Citazione:
S.T. Li et al., "Flowering plant sperm contains a cytosolic soluble protein factor which can trigger calcium oscillations in mouse eggs", BIOC BIOP R, 287(1), 2001, pp. 56-59

Abstract

There is evidence showing that the sperm-induced Ca2+ oscillations in mammalian eggs at fertilization are triggered by a sperm-derived protein factor. It was established recently that the activity of the putative sperm protein in causing Ca2+ oscillations in mammalian eggs is not species-specific in vertebrates (1, 16). Here we report that cytosolic soluble extracts derived from flowering plant sperms in Brassica campestris can also induce fertilization-like Ca2+ oscillations when microinjected into mouse eggs. The factor responsible for inducing Ca2+ oscillations in the plant sperm was sperm-specific and heat- or trypsin-labile. Eight to ten sperm equivalents of the plant sperm extracts had enough activity to trigger Ca2+ oscillations in mouse eggs. Our study suggests that, although plant and mammal are evolutionary divergent species, the activity of the putative sperm protein factor in triggering Ca2+ signaling in mammalian eggs is not specific to the animalkingdom. (C) 2001 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 04:37:48