%0 Journal Article
%T INFLUENCE OF DIFFERENT N FORMS ON SPORE GERMINATION AND HYPHAL GROWTH OF AM FUNGUS<br>不同氮形态对AM真菌孢子萌发和菌丝生长的影响
%A ZHU Hong-Hui
%A YAO Qing
%A LONG Liang-Kun
%A YANG Sonng-Zhen
%A <br>朱红惠
%A 姚青
%A 龙良坤
%A 羊宋贞
%J 菌物学报
%D 2004
%I 
%X Influence of different N forms on spore germination and hyphal growth of AM fungus, Gigaspora margarita, were investigated on Long-Ashton medium. Results indicated that spore germination was fast at early stage and slow at late stage on NO3--N and NH4 -NO3--N mediums, but just the reverse on NH4 -N medium. No difference was detected among spore germination rates on three mediums at finial stage, all reaching about 50%. Significant difference was observed among the hyphal growths on three mediums. Extending rate and length of germ hyphae were higher on NO3--N and NH4 -NO3--N mediums than on NH4 -N medium. This experiment demonstrated that NH4 -N didnt reduce AM fungal spore germination, but inhibited the hyphal growth, as compared with NO3--N and NH4 -NO3--N.
%K Gigaspora margarita
%K NO3--N
%K NH4 -N
%K germination rate
%K hyphal extending rate<br>Gigasporamargarita
%K 硝态氮
%K 氨态氮
%K 萌发率
%K 菌丝生长速率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=CA9F815FCB0F62294C4266BB6F902ACB&aid=7D0A511263474245&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=E158A972A605785F&sid=C7461453A367FC85&eid=240CB58995465C01&journal_id=1672-6472&journal_name=菌物学报&referenced_num=7&reference_num=17