Calcium granules transport across the endoderm of the pigeon

DOI

10.2991/meita-16.2017.78How to use a DOI?

Keywords

pigeon; calcium; transport; endoderm

Abstract

Calcium granules are known to form in the yolk sacs of fertile pigeon eggs at late stages of incubation. The appearance regularity, mineralization and demineralization position and tracking of calcium granules with the incubation process are investigated. Polarized light microscopy was used to observe the generation and distribution of calcium carbonate crystals in the yolk sac. The results of Polarized light microscopy observation show that the calcium granules density in endoderm increases with the change of incubation time, and the volume of calcium granules also increases constantly. SEM observes that calcium granules in endoderm are wrapped in domain structure. EDS shows that the content of calcium in endoderm increases constantly, which indicates that the absorption rate of endoderm on calcium increases. Calcium-rich particles, scattered zones of minute calcium-rich particles and calcium granules in cells of endoderm are found in endoderm, which shows that endoderm has degradation and absorption function on calcium-rich particles. These observations confirm the calcium absorption rate of endoderm gradually increases as the incubation time changes,which achieves maximum around middle stage of incubation, the calcium absorption rate declines slightly after incubation. The endoderm has the similar endocytosis to spherical calcium granules.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Juan Song
AU  - Hua Tong
AU  - Haixia Cheng
PY  - 2017/02
DA  - 2017/02
TI  - Calcium granules transport across the endoderm of the pigeon
BT  - Proceedings of the 2016 2nd International Conference on Materials Engineering and Information Technology Applications (MEITA 2016)
PB  - Atlantis Press
SP  - 375
EP  - 380
SN  - 2352-5401
UR  - https://doi.org/10.2991/meita-16.2017.78
DO  - 10.2991/meita-16.2017.78
ID  - Song2017/02
ER  -