The occurrence and damage of Xylotrechus quadripes Chew were investigated in different time points and micro environments in Siman south island river coffee test demonstration field. The results showed that X. quadr/p...The occurrence and damage of Xylotrechus quadripes Chew were investigated in different time points and micro environments in Siman south island river coffee test demonstration field. The results showed that X. quadr/pes mainly damaged 5-year-old coffee trees. X. quadr/pes occurred one generation per year in Siman region, and the larval stage lasted 296 - 322 d. The adult could be found in four seasons because of different development progress and overlapping generations. In different micro environments, X. quadr/pes were mainly distributed in mixed forests and the coffee land in sunny slope. The adult enjoyed sunshine on the coffee trees at noon. The nattwal enemy Prislauacus nigripea kieff was found to parasitize in the larvae of X. quadripes, which could control the population of X. quadr/pes.展开更多
目的:研究重建对偏侧咀嚼大鼠颞下颌关节(temporom and ibu lar joint,TM J)的影响。方法:40只大白鼠随机分为4组,所有动物间断磨除右上、下颌磨牙牙冠至龈下,实验1组第3周、实验2组第9周停止磨除牙冠,任其自行萌出,恢复咬牙合关系。...目的:研究重建对偏侧咀嚼大鼠颞下颌关节(temporom and ibu lar joint,TM J)的影响。方法:40只大白鼠随机分为4组,所有动物间断磨除右上、下颌磨牙牙冠至龈下,实验1组第3周、实验2组第9周停止磨除牙冠,任其自行萌出,恢复咬牙合关系。对照组不停止磨除牙冠,饲养条件相同。实验1组磨除牙冠后10周末、实验2组磨除牙冠后16周末处死动物,取其双侧TM J进行光镜、扫描电镜切片检查,结果与对照组对照。结果:实验1组双侧TM J基本恢复正常,实验2组双侧TM J结构有受损病理变化。对照1、2组双侧TM J均出现受损的病理变化。结论:早期牙合重建可恢复偏侧咀嚼大鼠TM J的损害。展开更多
基金Supported by Scientific Research Fund Project of Yunnan Department of Education(2014Y508)Project of Yunnan Department of Finance(YCJ[2013]212)Project of Pu’er University for Professional Gardening Talents
文摘The occurrence and damage of Xylotrechus quadripes Chew were investigated in different time points and micro environments in Siman south island river coffee test demonstration field. The results showed that X. quadr/pes mainly damaged 5-year-old coffee trees. X. quadr/pes occurred one generation per year in Siman region, and the larval stage lasted 296 - 322 d. The adult could be found in four seasons because of different development progress and overlapping generations. In different micro environments, X. quadr/pes were mainly distributed in mixed forests and the coffee land in sunny slope. The adult enjoyed sunshine on the coffee trees at noon. The nattwal enemy Prislauacus nigripea kieff was found to parasitize in the larvae of X. quadripes, which could control the population of X. quadr/pes.
文摘目的:研究重建对偏侧咀嚼大鼠颞下颌关节(temporom and ibu lar joint,TM J)的影响。方法:40只大白鼠随机分为4组,所有动物间断磨除右上、下颌磨牙牙冠至龈下,实验1组第3周、实验2组第9周停止磨除牙冠,任其自行萌出,恢复咬牙合关系。对照组不停止磨除牙冠,饲养条件相同。实验1组磨除牙冠后10周末、实验2组磨除牙冠后16周末处死动物,取其双侧TM J进行光镜、扫描电镜切片检查,结果与对照组对照。结果:实验1组双侧TM J基本恢复正常,实验2组双侧TM J结构有受损病理变化。对照1、2组双侧TM J均出现受损的病理变化。结论:早期牙合重建可恢复偏侧咀嚼大鼠TM J的损害。
