%0 Journal Article
%T INFECTION AND DEVELOPMENT OF SYMBIOTIC NITROGENFIXING ACTINORHIZA OF CORIARIA NEPALENSIS WALL.<br>尼泊尔马桑放线菌共生固氮根瘤的感染和发育
%A Wu Jie
%A Chen Huagui
%A Zhou Pingzhen
%A <br>.吴捷
%A .陈华癸
%A .周平贞
%J 植物科学学报
%D 1991
%I 
%X Frankia hyphae penetrate root ha rs and invade root cortical cells of Coriaria nepalensis Wall., leading to nodulation. Owing to the stimulation caused by infection, a part of the cortical cells in the infected root divide and hypertrophy, resulting in the formation of a prenodulein which the nodule primordium develops. The primordium divides and differentiates, forming a primary nodule lobe. The apical meristem of a lobe hranchs dichotomously and the branchings develop with the infection of new host cells by the endophytes, giving rise to a coralloid root nodule consisting of many dichotomic branchings. In cross section, the endophyte-infected tissue zone in a lobe is a horse-shoeshaped compactmass, incompletely surrounding the acentral stele. In longitudinal section, the apical part of a mature lobe is the meristem, followed successively by the non-infected tissue, the newly infected tissue, the mature infected tissue and the senescent infected tissue. The lobal stele is surrounded by several layers of cortical cells containing starch granules.
%K Coriaria nodule
%K Nitrogen fixation
%K Frankia
%K Nonleguminous symbiosis<br>马桑根瘤
%K 生物固氮
%K 放线菌
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=9973DE552EA54506F7AABD4780345ED2&aid=8E55CD56A93F07124D10408F2AEE0D01&yid=116CB34717B0B183&vid=9CF7A0430CBB2DFD&iid=CA4FD0336C81A37A&sid=CA4FD0336C81A37A&eid=E158A972A605785F&journal_id=1000-470X&journal_name=武汉植物学研究&referenced_num=1&reference_num=0