ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Stimulation of Shell Regeneration by Crude Extract of Subesophaqeal Ganglionic Mass in Giant African Snails, Achatina fulica (Bowdich))

ผู้เขียน:ดร.วิยะดา สีหบุตร, รองศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

The distribution of cells that stained positively with paraldehyde fuchsin (PAF) and negatively with chrome-hematoxylin phloxine (CH) in the subesophageal ganglionic mass of Achatina fulica has been mapped. The PAF-positive cells occur in the visceral ganglion, each cell contains electron-dense elementary granules of 1,300 Angstrom in diameter. From serial section, it showed that the PAF-positive cells or neurosecretory cells (NSC) sent axons into the intestinal nerve. The CH-negative cells occurred in the right parietal ganglion, each cell contained electron-dense elementary granules of 1,370 Angstrom in diameter. From serial sections, it showed that CH-negative cells sent axons into the pallial nerve. PAF-positive and CH-negative materials were depleted from cells in 24 hr after shell removal and reappeared by 72 h. Shell regeneration apparently completed within 15 days. Moreover, the subesophageal ganglionic mass homogenate (SGH) had some effects on shell regeneration which suggested that the PAFpositive and CH-negative cells were the neurosecretory cells that control shell regeneration. Key words: neurosecretory cells, paraldehyde-fuchsin, chrome-hematoxylin phloxine, pallial nerve, shell

Article Info

Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 036, Issue 1, Jan 02 - Mar 02, Page 30 - 34 |  PDF |  Page

ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Ultrastructure of Connective Tissue Cells of Giant African Snails Achatina fulica (Bowdich))

ผู้เขียน:ดร.วิยะดา สีหบุตร, รองศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

The connective tissue sheath of cerebral ganglion of giant African snails Achatina fulica (Bowdich) contain many types of cells such as pore cells, granular cells, vesicular connective tissue cells, amoebocytes, fibroblasts and muscle cells. Pore cells are characterized by numerous invagination of the cell membrane. Granular cells contain numerous granules. The vesicular connective tissue cells contain round nuclei, located in the centre of the cells. Amoebocytes have pseudopodia. Fibroblasts are spindle-shaped or elongate cells. They contain ovoid or elongate nuclei. Muscle cells have ovoid nuclei located in the centre of the cells.

Article Info

Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 036, Issue 3, Jul 02 - Sep 02, Page 285 - 290 |  PDF |  Page