TY - JOUR

T1 - Structure of the yolk syncytial layer in the larvae of whitefishes: A histological study

AU - Kondakova, E.A.

AU - Efremov, V.I.

AU - Bogdanova, V.A.

PY - 2017

Y1 - 2017

N2 - The yolk syncytial layer (YSL) is a symplastic provisory system that forms at the early stages of embryogenesis of teleosts. The YSL serves morphogenetic, trophic, and immune functions. Despite its important role in development, data on the structure of YSL is scarce. In the present study, comparative histological research on the features of YSL structure in the development of larvae of four economically important species of Coregonidae (Salmoniformes)—Coregonus peled, Coregonus muksun, Coregonus nasus, and Stenodus leucichthys nelma—is presented. The YSL of the larvae of Coregonidae has a complex, differentiated structure. Functional regionalization of YSL cytoplasm, possibly determined by the specific features of nutrient assimilation, is typical for all aforementioned species. Cytoplasm that encircles a large oil globule appears striated. A division into an inner area, filled with yolk inclusions, and an outer, smoother homogeneous area, can be noted in the cytoplasm surrounding the yolk mass. The oil glob

AB - The yolk syncytial layer (YSL) is a symplastic provisory system that forms at the early stages of embryogenesis of teleosts. The YSL serves morphogenetic, trophic, and immune functions. Despite its important role in development, data on the structure of YSL is scarce. In the present study, comparative histological research on the features of YSL structure in the development of larvae of four economically important species of Coregonidae (Salmoniformes)—Coregonus peled, Coregonus muksun, Coregonus nasus, and Stenodus leucichthys nelma—is presented. The YSL of the larvae of Coregonidae has a complex, differentiated structure. Functional regionalization of YSL cytoplasm, possibly determined by the specific features of nutrient assimilation, is typical for all aforementioned species. Cytoplasm that encircles a large oil globule appears striated. A division into an inner area, filled with yolk inclusions, and an outer, smoother homogeneous area, can be noted in the cytoplasm surrounding the yolk mass. The oil glob

KW - Coregonus peled

KW - Coregonus muksun

KW - Coregonus nasus

KW - Stenodus leucichthys nelma

KW - histological methods

KW - yolk metabolism

KW - larval development

KW - yolk syncytial layer

KW - oil globule

U2 - 10.1134/S1062360417030055

DO - 10.1134/S1062360417030055

M3 - Article

VL - 48

SP - 176

EP - 184

JO - Russian Journal of Developmental Biology

JF - Russian Journal of Developmental Biology

SN - 1062-3604

IS - 3

ER -