在室外盆栽条件下通过比较带内生真菌(E+)与不带内生真菌(E-) 的野大麦(Hordeum brevisubulatum(Trin.) Link)在不同NaCl浓度(0、100 、200 、300 mmol L-1)条件下的生长与生理指标变化，分析了内生真菌对宿主野大麦耐盐性的影响。结果表明：在高盐浓度(300 mmol L-1)下内生真菌显著提高了宿主野大麦分蘖能力、生物量积累、可溶性糖含量、脯氨酸含量、SOD 酶活性(P<0.05)，同时降低了丙二醛含量，说明内生真菌的侵入有利于提高宿主野大麦在室外盆栽条件下的耐盐性。

A new endophytic fungus has been isolated from Achnatherum inebrians collected from Gansu Province, China. The morphological and cultural characters are used to describe the new species, Neotyphodium gansuense.

The effects of cadmium on biomass production and growth parameters of drunken horse grass(Achnatherum inebrians) over an 8-week period were determined in a controlled-environment experiment.Changes were determined for relative water content, anti-oxidative enzymes (i.e., catalase (CAT),superoxide dismutase (SOD), peroxidase (POD), and ascorbate peroxidase (APX)) and for H2O2 content,as well as levels of proline, malondialdehyde (MDA), and chlorophylls “a” and “b” present within leaves infected with Neotyphodium gansuense vs. non-infected controls. observations began 4 weeks after addition of CdCl2 (0, 50, 100 and 200 M) to the nutrient solution. Under high concentrations (100 and200 M) of CdCl2, endophyte-infected plants produced more biomass and had higher values for plantheight and tiller number compared to non-infected controls, but there was no significant difference (P > 0.05) under 0 and 50 M CdCl2. Anti-oxidative enzyme activities, H2O2 concentration, and chlorophylls“a” and “b” levels increased, but proline and malondialdehyde content declined in the infected plants vs. non-infected plants under high (100 and 200 M) concentrations of CdCl2. There was no significant difference (P>0.05) under 0 and 50 M CdCl2. Endophyte infection was concluded to be of benefit to the growth and anti-oxidative mechanisms within A. inebrians under high concentrations exposures to CdCl2.

本文对中华羊茅Festuca sinensis 内生真菌Neotyphodium sp.的生物学与生理学特性进行了报道。研究发现：中华羊茅内生真菌能在10－30℃生长，5℃和35℃几乎不能生长，最适生长温度是25℃；适宜的pH 是7-9；不同的碳、氮源利用能力不同，利用能力最好的分别是甘露醇和酵母浸液；在不同培养基上的生长速度与产孢特性存在差异，马铃薯葡萄糖琼脂（PDA）培养基上生长最快，水琼脂（WA）和海水营养琼脂（SNA）培养基上生长最慢，但WA 和SNA 产孢最多。