摘要
丛枝菌根是自然界中,植物与真菌形成的分布最广泛的一类互惠共生体。作者对山东省的6种重要野生花卉小黄花菜(Hemerocallis minorMill.)、萱草(Hemerocallis fulvaL.)、琥珀千里光(Senecio ambraceusTurcz.)、矮鸢尾(Iris chamaeiris)、甘野菊(Dendranthema lavandulaefolium)、锦鸡儿(Catagana sinicaRehd.)的AM真菌的侵染状况、典型结构的发育状况以及其根际土壤中AM真菌的孢子密度和根际AM真菌的相对多度和频度进行了研究。结果表明,所调查的6种野生花卉都被AM真菌侵染,且可观察到典型结构泡囊,其根际土壤中AM真菌孢子密度也相当丰富。在本次调查中共分离到了5个属的AM真菌,其中无梗囊霉属和球囊霉属真菌是野生花卉根际AM真菌的优势类群。
In the symbiotic association of plant and fungi, arbuscular mycorrhiza（AM） , which is formed between plants and Glomales fungi, has the widest distribution in the nature. A investigation （of the AM） was carried out among six wild flowers species in Shandong province on mycorrhizal colonization, natural development of typical structure , spore density in rhizospheric soil, relative abundance and frequency of AM fungi. Results showed that all the roots were colonized by AM fungi, typical a vesicles were observed and spore density of AM fungi in rhizospheric soil was very abundant in this survey , five genera AM fungi were identified, Acaulospora and Glomus were likely the dominant proportion in the rhizosphefic soil of AM fungi of wild flowers.
出处
《山东科学》
CAS
2006年第2期33-37,共5页
Shandong Science
关键词
野生花卉
丛枝菌根
侵染率
孢子密度
wild flowers
arbuscular mycorrhiza
colonization rate
spore density
