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Antibacterial activity of silkworm hemolymph after hemopoietic organ being injured with radiosurgery
Author(s) -
ZhenLi T.,
MeiXing S.,
Yasuhiko K.,
Kenji K.
Publication year - 2004
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.2004.00910.x
Subject(s) - hemolymph , biology , hemocyte , bombyx mori , haematopoiesis , instar , antibacterial activity , larva , microbiology and biotechnology , immunology , bacteria , andrology , immune system , botany , biochemistry , medicine , stem cell , genetics , gene
To study the effect of hemopoietic organs damage on hemocyte function and antibacterial activity of hemolymph, silkworm ( Bombyx mori ) larvae were locally irradiated with carbon ion beams ( 12 C 5+ , 100 Gy), live and death ratio of hemocytes and antibacterial activity of hemolymph were investigated. For unirradiated controls, the ratio of died hemocytes hardly changed at the fifth instar, but for locally irradiated silkworms, with growth died hemocytes and low‐functional hemocytes increased clearly, and reached an extremely significant level at the later stage of the fifth instar. For irradiated individuals, the phenolxidase activities and sterilization effect of hemolymph were clearly lower than those of controls. So it is considered that after irradiating hemopoietic organs with heavy ion beams, not only the number of hemocytes decreased but the function of hemocytes also dropped, and they at last lead to a decline in immunity.