TY - JOUR

T1 - Germ cell determinants in the oocytes of freshwater sponges

AU - Gonobobleva, E.L.

AU - Efremova, S.M.

PY - 2017

Y1 - 2017

N2 - The paper reports a light and electron microscopy study of the ultrastructure and oogenesis of germ-cell determinants in freshwater sponges Eunapius fragilis and Swartschewskia papyracea. For the first time, germinal granules surrounded by mitochondria, the ultrastructural signature of germinal plasma in a number of metazoan organisms, has been described in Porifera. Structural changes in germ determinants in the course of oogenesis have been described, and participation of mitochondria in the formation of the central component of germ cell determinants has been suggested.

AB - The paper reports a light and electron microscopy study of the ultrastructure and oogenesis of germ-cell determinants in freshwater sponges Eunapius fragilis and Swartschewskia papyracea. For the first time, germinal granules surrounded by mitochondria, the ultrastructural signature of germinal plasma in a number of metazoan organisms, has been described in Porifera. Structural changes in germ determinants in the course of oogenesis have been described, and participation of mitochondria in the formation of the central component of germ cell determinants has been suggested.

KW - Porifera oogenesis germ cell determinants mitochondrial clouds germinal plasma

U2 - 10.1134/S1062360417030043

DO - 10.1134/S1062360417030043

M3 - Article

VL - 48

SP - 231

EP - 235

JO - Russian Journal of Developmental Biology

JF - Russian Journal of Developmental Biology

SN - 1062-3604

IS - 3

ER -