Xu J T
Department of Mycology, Institute of Medicinal Plant Development, CAMS, PUMC, Beijing 100094, China.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2001 Apr;23(2):150-3.
To study the cell structure changes of Gastrodia elata after Armillaria mellea infection as well as the nutritional resource of this important medicinal plant.
Observation of the serial sections on the nutritional stems of G. elata, and measure new corms of G. elata when cut off the old corms connection with rhizomorph of A. mellea.
After G. elata nutritional stems infected by A. mellea, the rhizomorph of A. mellea separate into several hyphal layers and penetrate hyphal stream which infect into the cells of cortex layer in the direction of outside and infect directly into layer cells in the direction of inside, these hypha can be used the nutrition of G. elata the new corms will be stop growth if cut off the rhizomorph of A. mellea connected with G. elata.
After the rhizomorph of A. mellea infected G. elata nutritional stems, hyphal coils and the hyphal stream will breakthrough passage cells as well as large cells surround the whole nutritional stems, so the passage cells is the key nutritional resource in the whole growth period of G. elata.
研究蜜环菌感染后天麻的细胞结构变化以及这种重要药用植物的营养来源。
观察天麻营养茎的连续切片，并在切断与蜜环菌菌索相连的老球茎时测量天麻的新球茎。
蜜环菌感染天麻营养茎后，蜜环菌菌索分成几个菌丝层并穿透菌丝流，菌丝流向外感染皮层细胞，向内直接感染层细胞，这些菌丝可利用天麻的营养，若切断与天麻相连的蜜环菌菌索，新球茎将停止生长。
蜜环菌菌索感染天麻营养茎后，菌丝圈和菌丝流会突破通道细胞以及包围整个营养茎的大型细胞，因此通道细胞是天麻整个生长周期中的关键营养来源。
