菌根

In recent years, people have been interesting in the researches on association among mycorrhizal fungi, actinomyces and other soil microbes.

近年来，对菌根真菌与放线菌及其他根际微生物关系的研究也逐渐受到人们的关注。

Mycorrhizal fungi enter the velamen and exodermis through root hair, invade the cortical tissue by the exodermal passage cells and then form pelotons.

独花兰具有典型的兰科植物菌根构造，在光学显微镜下可以观察到菌根真菌从根毛进入根被和外皮层，通过通道细胞侵入到皮层薄壁组织，在皮层薄壁细胞内形成菌丝团。

Strain AR-15 penetrated the exodermal passage cells through the velamen cells or root hairs and further infected the cortical cells. There were a number of spores and hyphae in plant roots that was damaged by strain AR-15. Study on the ultrastructure of D. nobile root and its endomycorrhizal formationshowed that the wall of velamen cells of D. nobile root was thin, and there were waxylayers outside of velamen. Cells of exodermis were arranged tidily, having thick wallsand chloroplast.

金钗石斛根及其菌根的超微结构研究表明，金钗石斛根的根被细胞薄壁，在最外层根被细胞之外覆盖着蜡质层，外皮层细胞排列整齐，细胞壁厚，内含叶绿体，靠近外皮层的皮层细胞含叶绿体、线粒体，皮层细胞壁薄，细胞核明显，周围有叶绿体围绕，细胞膜附近有小泡结构。

Root hair was not present on the roots of this plant. Root of D.candidum possesses the typical root structure of orchids including velamen, exodermis,thick cortical tissue, endodermis, pericycle, vascular bundle and pith. Strain AR-18grew toward D.

真菌AR-18倾向于根生长，真菌在根周围形成了一个包围圈，并侵入根被细胞，由根被继续侵入外皮层通道细胞，进一步向皮层细胞侵染，在皮层细胞内形成菌丝结，从而形成内生菌根。

Experiments were carried out to study the effects of P sources on phosphatase activity of rhizosphere and mycorrhizosphere of red clover inoculated with Glomus mosseae , and cultural system with three compartments was applied.

以红三叶草为研究对象，利用三室培养系统，在接种菌根真菌的条件下研究了不同磷源对根际和菌根际磷酸酶活性的影响。

Tree seedlings with ectomycorrhizae or excised ectomycorrhizae have also been used as an inoculum source for new seedling crops.

具有外生菌根的苗木，或剪下的外生菌根，也曾被用作新苗木的接种源。

Influence of plant species coexisting on AMF colonization in root system under field conditions The field experiment showed that the influence of species coexisting community on the AMF colonization in these plant root system significantly depended upon the plant species character.

泡囊数主要说明AMF在宿主根系的定殖程度，泡囊数表现出与菌根侵染率相似的变化规律，也是各物种共存组合与单个物种相比变化不大，但泡囊数在铅污染土壤中明显增加，这可能是铅污染刺激了这些草的菌根膨大。

Armillaria luteo-virens is a ectomycorrhizal fungus symbiotic with some species of Kobresia in Tibet Plateau, China. A strain was recently isolated from fruitbody tissue of the fungus. To determine whether the strain is the pure culture of the fungus, the internal transcribed spacer region and the first intergenic spacer region (IGS-1) of the nuclear ribosomal DNA of fruiting body and the isolated strain were sequenced and compared. Further, the 5.8S/ITS and IGS-1 sequences of the species were BLAST matched with GenBank database on homology and a phylogenetic tree was constructed based on 5.8S/ITS sequence and two phylogenetic trees were constructed separately based on two IGS-1 sequences.

首次从采自青藏高原、与高原牧草嵩草属Kobresia草本植物形成外生菌根的黄绿蜜环菌Armillaria luteo-virens子实体中分离获得一组织分离菌株，运用rDNA-ITS和rDNA-IGS-1测序技术对该组织分离菌株是否为黄绿蜜环菌的纯培养菌种进行分子鉴定，并基于黄绿蜜环菌的5.8S/ITS和IGS-1序列进行核酸序列数据库GenBank同源性检索比对、构建系统发育树。

Compared with non-mycorrhizal seedlings, the ratio of nitrogen and phosphorus in mycorrhizal roots increased, but reduced in stem and leaves.

与无菌根幼苗比，所有菌根幼苗根的氮、磷分配比例增加，而茎和叶片的氮、磷分配比例减少。

In this paper five strains of Arbuscular mycorrhizal fungi inoculums were used in organic soil before tomato seed sowing.

丛枝菌根是生活在陆生植物根际的有益共生微生物，大多数作物、蔬菜、果树和观赏植物均可形成丛枝菌根共生体〔1，2〕，由于有机栽培下营养物质转化吸收不如化肥效果迅速，不能完全满足蔬菜生长需求，因此产量一般较低。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。