Ultrastructural observation on esophageal glands and their secretory granules in Bursaphelenchus xylophilus and Bursaphelenchus mucronatus by TEM
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摘要: 该文用透射电镜观察比较松材线虫南黑株系、拟松材线虫杭九株系幼虫期和成虫期食道腺和分泌物颗粒的形态以及在生活史中的变化.结果表明二者的食道腺的结构以及在不同时期活性的变化是一致的:幼虫期亚腹食道腺发达, 内有大量的分泌颗粒;成虫期背食道腺发达, 内有大量的分泌颗粒.松材线虫和拟松材线虫食道腺分泌颗粒可分为两种类型, 这两种类型的分泌颗粒在体积和电子密度上都存在差异.松材线虫和拟松材线虫株系间的分泌颗粒在体积上存在差异.Abstract: The dorsal and subventral esophageal glands and their secretory granules in Bursaphelenchus xylophilus and Bursaphelenchus mucronatus were observed by transmission electron microscopy (TEM) to study their shape and changes in life cycles.Results indicated that the structure of esophageal glands and their changes in larvae and adults appeared degenerate;the subventral glands (SvG) enlarged in larvae and large numbers of secretory granules (SG) appeared.The dorsal gland (DG) enlarged in both male and female, and numbers of SG appeared in it.Two types of secretory granules formed by esophageal glands were different in size and electron-dense, and secretory granules in Bursaphelenchus xylophilus and Bursaphelenchus mucronatus were different in size.
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