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Etude preliminaire des equilibres de distribution de l'eau et des ions au cours de l'ovogenese de Solea solea ArchiMer
Gallis, J; Lemenn, F; Lebrun, A; Nunez, R.
During oogenesis of Solea solea L., gonadal changes in water, Na super(+) and K super(+) ions seem to be related to yolk protein incorporation by the oocyte. The decrease in oocyte water accumulation, associated with an increase in pericellular water accumluation and a decrease in K super(+) concentration occurs when vitellogenin enters the oocyte. Na super(+) concentration decreases in the oocyte at the end of the exogenous vitellogenesis when the first stages of the oocyte maturation take place. Water accumulation in the pericellular space during vitellogenesis allows the rapid transfer of water from this compartment into the oocyte during the terminal phase of maturation. However the total amount of gonadal water remains stable.
Tipo: Text Palavras-chave: Solea solea; Soleidae; Pisces; Hydration; Water content; Ion accumulation; Sexual maturity; Ovaries; Oogenesis; Solea; Maturation ovocytaire; Ovogenèse; Eau; Ions.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/acte-1231.pdf
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Classification of some Linseed (Linum usitatissimum L.) Genotypes for Salinity Tolerance using Germination, Seedling Growth, and Ion Content Chilean J. Agric. Res.
Demir Kaya,Mehmet; Day,Sibel; Cikili,Yakup; Arslan,Neset.
Salinity reduces germination, delays emergence, and inhibits seedling growth of linseed (Linum usitatissimum L.) while some varieties are less affected by salinity than others. In this study, we aimed to determine the effects of NaCl levels (0, 5, 10, 20 and 30 dS m-1) on germination and seedling growth of 10 linseed genotypes (lines 87, 89, 104, 114, 193, 194, 209, 215, C-90 and cv. San-85) and to classify the genotypes for salinity tolerance using germination and seedling characteristics. Germination percentage, mean germination time, root and shoot length, seedling fresh and dry weight, Na+ content and Na:K ratio of seedlings were investigated. Classification of linseed genotypes for salinity tolerance was done according to (i) combination of Principal...
Tipo: Journal article Palavras-chave: NaCl; Tolerance; Cluster; Ion accumulation.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100005
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