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在四川甘溪和贵州独山泥盆纪剖面的造礁珊瑚-层孔虫薄片中,发育多种菌藻类及其生物遗迹:主要包括结壳菌藻类、钻孔菌藻类、微钻孔和嵌生;并发现了寄主珊瑚-层孔虫中菌藻类及其遗迹产出部位具有骨骼残缺和虫室中常见软体组织死后的残留物质.我们的资料表明,菌藻类与寄主珊瑚-层孔虫之间是“侵略与反抗”的关系,前者对后者生长有抑制作用,后者有一定自我修复功能,二者关系中菌藻类是主动的一方;在适合寄主珊瑚-层孔虫生存环境的中泥盆世,寄主珊瑚-层孔虫能抵抗菌藻类入侵而不会死亡,菌藻类对珊瑚-层孔虫礁生态系的影响很小;在适合菌藻类而不适合珊瑚-层孔虫生长环境的晚泥盆世,后者无法抵抗前者“大举入侵”而出现凋零和死亡.我们认为菌藻类对寄主珊瑚-层孔虫的生长发育的直接抑制与杀死作用和菌藻类繁盛引发的环境恶化是F-F之交珊瑚-层孔虫礁生态系消失的重要原因,这为现代珊瑚礁患病-衰退的原因和发展趋势研究提供了古代实例.
In Ganxi, Sichuan Province and Guizhou Dushan Devonian section of the reef - stomatal thin slices, the development of a variety of bacteria and algae and their biological relics: mainly including fungi algae, drilling bacteria and algae, micro-drilling and embedded And found the host coral - stomatal bacteria and algae in the production sites have residual skeletal and residual residues in the worm chamber common tissue death.Our data show that the bacteria and host coral - stomatal Between the “aggression and resistance” relationship, the former has an inhibitory effect on the latter growth, the latter has a certain self-healing function, the relationship between the two bacteria and algae is the active side; in the host for coral - larvae survival In the Middle Devonian environment, the host coral-laminaria can resist the invasion of bacteria and algae without death, and the fungi and algae have little effect on the coral-stomatal reef ecosystem. However, The Late Devonian, the latter growing environment, can not resist the former “invasion” and appear dying and death.We think that the direct inhibition and killing effect of bacteria and algae on the growth and development of the host coral-stomatal disease and bacteria and algae Prosperity caused by environmental degradation is the FF coral - The important reason for the disappearance of the phytoplankton reef ecosystem provides an ancient example for the study of the causes and development trends of modern coral reefs.