RELATION OF A LARGE SOIL-BORNE SPORE TO PHYCOMYCETOUS MYCORRHIZAL INFECTIONS
RELATION OF A LARGE SOIL-BORNE SPORE TO PHYCOMYCETOUS MYCORRHIZAL INFECTIONS
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DOI：
10.2307/3755574
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发表时间：
1955-01-01
期刊：
影响因子：
2.8
通讯作者：
GERDEMANN, JW
中科院分区：
文献类型：
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作者：
GERDEMANN, JW
一个大的，黄色的，单细胞孢子直径291-812[mu]被发现是常见的伊利诺伊州田间土壤。通过湿筛和倾析从土壤中分离孢子。对它们进行表面灭菌并获得纯培养物。培养物在所有测试培养基上仅进行有限生长。当孢子被用来侵染植物根时，它们产生藻菌型的菌根感染。丛枝菌大量产生，但没有形成囊泡。穿透后，在外部菌丝体上形成致密的棘状孢子簇。交叉接种实验，利用孢子附近的玉米和红三叶草根表明广泛的主机范围。
A large, yellow, one-celled spore 291-812[mu] in diameter was found to be common in Illinois field soils. Spores were separated from soil by wet sieving and decanting. They were surface sterilized and pure cultures were obtained. Cultures made only limited growth on all media tested. When spores were used to inoculate plant roots they produced a mycorrhizal infection of the phycomycetous type. Arbuscules were produced in abundance; however, vesicles did not form. Following penetration compact clusters of echinulate spores formed on the external mycelium. Cross inoculation experiments utilizing spores obtained from near corn and red clover roots indicated a wide host range.