菌根

It was concluded that Glomus mosseae inoculation improved the drought resistance of Broussonetia papyrifera Vent, especially in moderate stressed conditions. And the contribution of AM symbiosis to plant to avoid the stress or to increase its tolerance might be the result of modification of root morphology and fractal character.

由此作者认为，接种G.mosseae在不同土壤水分条件下促进了构树幼苗的生物量积累，这种促进作用在土壤干旱条件下尤为明显，表明AM菌根真菌G.mosseae提高了宿主构树的抗旱性；G.mosseae对宿主构树抗旱性的提高与G.mosseae对构树根系形态特征、分形特征的改变密切相关。

Following 5 experiments were conducted: Experiment 1: Effects of soil moisture and AM inoculation on root morphology and fractal character in Broussonetia papyrifera Vent Effects of Glomus mosseae and water stress on morphology and fractal characteristic of root system in Broussonetia papyrifera L.

为此，设计如下的5个试验：试验1：土壤水分与丛枝菌根真菌接种对构树根系形态特征和分形特征的影响利用WinRhizo根系分析系统，在石灰土基质上对不同土壤水分条件下接种AM真菌Glomus mosseae对构树幼苗根系的形态特征和分形特征的影响进行了研究。

The AMF spore average density was 24.88 per 20 g soil , the species richness was 1.94 per soil sample, the species diversity index was 2.56, and the species evenness was 0.65. Glomus, but they all were of prominent genus in the investigation area and Acaulospora, Scutellospora were of common genus while Entrophospora was rarely found. In the 13 species AM fungi, G.mosseae was of prominent species, and G.geosporum, G.intraradices, G.etunicatum were of common speices, while the others were of rarely species. There were 87.5% sand fixation plant were infected with arbuscular mycorrhizal fungi, the highest spore density, the strongest infection strength of the whole roots and the best species richness belonged to Chenopodiaceae while Polygonacea was the lowest.

四属AM真菌中，Glomus为优势属， Scutellospora 、Acaulospora为常见属，Entrophospora则为稀有属；十三种AM真菌中，G.mosseae、G.geosporum分别为优势种、最常见种，G.intraradices，G.etunicatum为常见种，其余均为稀有种；五科固沙植物中，87.5%的植物能被菌根侵染，其中藜科植物孢子密度最高，整个根系侵染强度最强，种的丰度最高，蓼科植物孢子密度、整个根系侵染强度、种的丰度则最低；禾本科植物不仅具有最好的丛枝结构，且具有相对高的亲和性，能与12种AM真菌共生。

The results showed that VA mycorrhizal fungi and dicalcium phosphate, octocalcium phosphate, iron phosphate, aluminium phosphate promoted growth and increased phosphorus content of corn plant.

结果表明：VA菌根真菌和磷酸二钙、磷酸八钙、磷酸铁和磷酸铝均促进了玉米植株生长，增加了植株含磷率和吸磷总量。

Except for two species (Dicranopteris linearis and Diospyros tsangii), eighteen species examined were associated with either vesicular-arbuscular mycorrhiza or ectomycorrhiza.

除了2种植物：芒萁和曾氏柿外，18种植物均可与真菌形成内生型或外生型菌根。

Progress in the study of the influences of light, water, herbivory and fungal symbiont on the growth and survival of Dipterocarpaceae seedlings is briefly summarized, and the prospects in the future are also discussed.

就光照、水分、动物捕食和菌根共生体对龙脑香科植物幼苗生长与死亡的影响进行了简要综述，并对未来研究的发展方向作一展望。

The two major groups of mycorrhizal fungi are the ectotrophic and endotrophic types.

主要的菌根真菌有两种：内生型和外生型。

Soybean cultivar "Ludou 4" was inoculated with the AM fungus Glomus fasciculatus, soybean cyst nematode Heterodera glycines race 4 and the AM fungus plus SCN. A number of coefficients such as mycorrhizal colonization, SCN infection rate, activities of chitinase and PAL and transcripts of the genes Chibl(Chitinase b1) and PAL5 in soybean roots were assayed.

本研究系统分析了大豆(品种：'鲁豆4')接种AM真菌Glomusfasciculatum和胞囊线虫(SCN，Heterodera glycines)4号生理小种后各处理菌根和线虫侵染率、几丁质酶和苯丙氨酸解氨酶活性及几丁质酶基因Chib1和苯丙氨酸解氨酶基因PAL5转录物的动态变化。

Extraradical hyphal growth was inhibited at high P levels, resulting in decreased P uptake by AM fungi.

高磷造成AM真菌生长和代谢活性下降，是导致菌根效应下降的原因之一。

The addition of different levels of phosphorus to the hyphal compartment markedly increased P concentration and P content of mycorrhizal plants.

板栗接种菌根真菌后，还明显地提高了板栗植株的含磷量和吸磷总量。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。