Ultrastructure of the poison gland in the red imported fire ant, Solenopsis invicta buren (Hymenoptera : Formicidae)
文献类型: 外文期刊
第一作者: Yang Tianci
作者: Yang Tianci;Mo, Jianchu;Fu Guiming;Zhong Shi;Ding Gangqiang;Ren Zhangyao;Wei Lanfen;Lu Longxi
作者机构:
关键词: Solenopsis invicta;red imported fire ant;poison gland;morphology
期刊名称:SOCIOBIOLOGY ( 影响因子:0.983; 五年影响因子:1.01 )
ISSN: 0361-6525
年卷期: 2007 年 50 卷 2 期
页码:
收录情况: SCI
摘要: The red imported fire ant, Solenopsis invicta is an exotic invasive pest which has mainly infected the southeast and coastal regions (20 degrees N-34 degrees N and 105 degrees E-124 degrees E) in China and about 7000 ha territories were infested according to the estimation of the authoritative organization. 'fhe venom plays an important role in their territory expansion, which is synthesized in the poison gland and stored in the venom reservoir during the early development stage of worker. With the aid of electron microscope, the length of the sting apparatus of S. invicta is approximate 640 m from the tip of lancet to the base of the sting bulb. The maximum secretory cell from the venom gland tissue is approximate 16 m in length and 3.3 m -4.4 m in width. In the inner of the sting bulb, there were many hollow lumina where the low dose of the venom were stored and delivered into the sting lancet. The venom would be vented through the acidopore of the gaster when the foraging workers encountered the exogenous foraging competitor. A large number of fat bodies and microvillus were regularly arrayed near the pericellular membrane of the sting apparatus of S. invicta. These structures increased obviously the superficial area and the volume of venom reservoir of S. invicta.
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