Endophyte sporulation in root nodules of actinorhizal plants
Endophyte sporulation in root nodules of actinorhizal plants
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放线菌植物根瘤内生菌孢子形成
DOI：
10.1111/j.1399-3054.1987.tb06145.x
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发表时间：
1987
影响因子：
6.4
通讯作者：
J. Torrey
中科院分区：
文献类型：
--
作者：
J. Torrey
所有分离的Frankia菌株都具有形成孢子囊的遗传能力，因为当在体外生长时，它们通常自由地形成孢子，这取决于它们培养的物理和化学环境。内生孢子形成涉及根瘤内孢子囊的Frankia分化，仅在6科9属16种寄主中有报道。从迄今为止发表的研究来看，内生孢子形成与宿主植物周围的特定环境条件无关。根据文献和以前未发表的意见，从田间和温室研究，帐户的发生孢子在放线菌植物的重点是桤木，木麻黄，Comptonia，胡颓子和杨梅。探索了宿主植物在控制弗兰克氏菌孢子形成方面可能发挥的作用，与微生物共生体的遗传结构所发挥的控制作用进行了对比。
All strains of isolated Frankia possess the genetic capacity to form sporangia since, when grown in vitro, they usually sporulate freely, depending on the physical and chemical environment in which they are cultured. Endophytic sporulation involving Frankia differentiation of sporangia within root nodules has been described in only 16 host species in 9 genera within six families of actinorhizal plants. From studies published to date, endophytic sporulation cannot be correlated with specific environmental conditions surrounding the host plants. Based on the literature and on previously unpublished observations from field and greenhouse studies, an account is given of the occurrence of sporulation in actinorhizal plants with emphasis on Alnus, Casuarina, Comptonia, Elaeagnus and Myrica. The possible role of the host plant in controlling Frankia sporulation as contrasted to the control exerted by the genetic constitution of the microbial symbiont is explored.