Dickerson A G, Mantle P G, Nisbet L J
J Gen Microbiol. 1976 Dec;97(2):267-76. doi: 10.1099/00221287-97-2-267.
Carbon assimilation by Claviceps purpurea, growing as a parasite on cereals, has been investigated by supplying the host plant with 14CO2 in a closed system. The presence of the pathogen induced the plant to exude photosynthate which contained high levels of sucrose. During the period of 14CO2 supply, 14C was incorporated into the sucrose and so the path of carbon into the parasite could be traced. Hexoses, derived by the action of the fungal sucrase on sucrose, were assimilated by the pathogen and largely converted into polyols - mainly mannitol and, to a lesser extent, trehalose. The rate of carbohydrate metabolism decreased with maturation of the ergot, and also showed qualitative differences between the basal and apical regions of the ergot which were probably a function of nutrient supply.
通过在封闭系统中给寄主植物供应(^{14}CO_2)，对寄生于谷物上的麦角菌（Claviceps purpurea）的碳同化作用进行了研究。病原体的存在促使植物分泌出含有高浓度蔗糖的光合产物。在供应(^{14}CO_2)期间，(^{14}C)被整合到蔗糖中，因此可以追踪碳进入寄生物的途径。由真菌蔗糖酶作用于蔗糖产生的己糖被病原体同化，并大量转化为多元醇——主要是甘露醇，其次是海藻糖。碳水化合物代谢速率随着麦角菌核的成熟而降低，并在麦角菌核的基部和顶部区域之间表现出质量差异，这可能是营养供应的作用。
