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imperfect fungi
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  半知菌
     Study on secondary metabolite of marine fungi has made a great progress since the 1990s. Many compounds with new structure and possessing unique physiological activities have been found from marine ascomycetes and imperfect fungi.
     海洋真菌的次级代谢物的研究在 2 0世纪 90年代以来取得了很大进展 ,其中主要在海洋子囊菌和半知菌的菌体和发酵液中发现了很多结构新颖、具有独特生理活性的化合物 ,这些研究结果表明海洋真菌中蕴含了丰富的新型化合物 ,将是未来新药研究的重点领域。
短句来源
     The genus Alternaria Nees is a kind of imperfect fungi that is cosmopolitan and economically important.
     链格孢属(Alternaria Nees)是全球分布最广,经济上重要的半知菌类真菌之一。
短句来源
     IMPERFECT FUNGI IN THE TROPICAL AREAS OF CHINA Ⅰ. SPECIES OF CERCOSPORA AND ALLIED GENERA FROM YUNNAN PROVINCE
     中国热带地区的半知菌Ⅰ.云南尾孢菌属及其近似属的种(英文)
短句来源
     IMPERFECT FUNGI IN THE TROPICAL AREAS OF CHINA Ⅱ.SOME SPECIES OF PSEDOCERCOSPORA FROM GUANGDONG PROVINCE
     中国热带地区的半知菌Ⅱ.广东部分假尾孢菌(英文)
短句来源
     IMPERFECT FUNGI IN THE TROPICAL AREAS OF CHINA III.
     中国热带地区半知菌III.(英)
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  半知菌类
     The genus Alternaria Nees is a kind of imperfect fungi that is cosmopolitan and economically important.
     链格孢属(Alternaria Nees)是全球分布最广,经济上重要的半知菌类真菌之一。
短句来源
     Importance of the conidiogenous structure in modern taxonpmy of the imperfect fungi is also discussed.
     此外,还阐明了现代半知菌类分类中产孢细胞的特征的重要性。
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  “imperfect fungi”译为未确定词的双语例句
     A SURVEY OF STUDY ON SECONDARY METABOLITES FROM MARINE IMPERFECT FUNGI
     海洋半知类真菌次级代谢物研究概况
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  imperfect fungi
The utilization of oligosaccharides (maltose, sucrose, lactose and raffinose) by three imperfect fungi viz.Alternaria tenuis Auct.,Colletotrichum capsici (Syd.)Butler >amp;amp;Bisby andColletotrichum gloeosporioidesPenz.
      
Utilization of oligosaccharides by three imperfect fungi
      
Also they could be developed as genetic tools for tagging genes, a cloning strategy that is particularly promising in imperfect fungi.
      
This has to be considered especially in the classification of the imperfect fungi.
      
A discussion of the importance of setae in the classification of imperfect fungi indicates that the separation of the generaTrichurus andDoratomyces may not be a natural one.
      
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An Aphanocladium species had been isolated from diseased Agaricus bisporus from Beijing, Kunming and Fuzhou, in 1980—1981. Its cultural characters on PDA and CzA are very similar to those of Verticillium psalliotae Tresch. and Aphanocladium aranearum var. sinense, but it shared both morphology of the above mentioned two fungi under the microscope. In the induced experiment of parasitism, repeated attempts were made to purify the fungus, and picking out a number of single spores with the aid of a micromanipulator,...

An Aphanocladium species had been isolated from diseased Agaricus bisporus from Beijing, Kunming and Fuzhou, in 1980—1981. Its cultural characters on PDA and CzA are very similar to those of Verticillium psalliotae Tresch. and Aphanocladium aranearum var. sinense, but it shared both morphology of the above mentioned two fungi under the microscope. In the induced experiment of parasitism, repeated attempts were made to purify the fungus, and picking out a number of single spores with the aid of a micromanipulator, the morphology of both morphs appeared consistently from either single colony or single spore culture. The possibility of parasitic relationship or mixed culture of both fungi was therefore excluded. In single spore culture of this fungus on PDA or CzA in 48 even 72 hours, only typical phialides of V. psalliotae appeared. As the culture was growing for 2—10 days continuously, the aphanocladiate morph arose everywhere. This peculiar type of morphology was very stable in the culture for four years. Since the morphology of the aphanocladiate morph in this fungus had some differences from A. aranearum var. sinense and other species in this genus, it was considered to be a new species, the name Aphanocladium dimorphum sp. nov. is proposed. So far, it was only obtained from A. bisporus collected from the above mentioned three cities in China. To compare the three fungi on PDA, CzA, MA (malt extract agar), PrA (prune agar), OA(oat meal agar) and Martin agar, and under four temperatures, 18, 22, 26, 30℃, we could not distinguish them from each other macroscopically. The number of phialides of aphanocladiate morph in this new species were influenced to some extent by the medium used. On PDA and CzA they were rather abundant than on other media, and the two morphs were all scanty on MA. But the mycelia were very thick on MA. The optimum growth temperature was 26℃, and then 22, 18, and 30℃ successively. The fruiting bodies of A. bisporus were inoculated with this fungus, there were no apparent difference in symptom or severity of the disease of the inoculated mushrooms caused by V. psalliotae and A. aranearum var. sinense separatly. As the optimum growth temperature of this fungus is much higher than A. bisporus, so we estimate that it may not cause a severe damage by itself alone. In the present paper, the morphology of this fungus is described in detail. The pleomorphic imperfect fungi, the correlation among the above mentioned three fungi and genus Engyodontium are discussed.

1980—1981年先后自北京、昆明、福州等地双孢蘑菇[Agaricus bisporus(Lange)Sing.]上分离到一种真菌,在PDA上的培养性状与蘑菇轮枝菌(Verticillium psalliotae Tresch.)和蛛网丝枝霉中国变种[Aphanocladium aranearum(Petch)Gams var.sinense J.D.Chen]近似。镜检可见其兼具上述两种菌的形态。经反复多次纯化,并挑取单孢子培养,肯定了这种真菌是纯菌。在培养基上已保存4年,形态稳定。它具典型蘑菇轮枝菌形态,而其丝枝霉型瓶梗的形成和瘪缩时间、长度、原瓶梗数量、末端瓶梗数及排列密度等,都与蛛网丝枝霉中国变种有一定差异,与丝枝霉属其它种亦不同,故定为两型丝枝霉新种(Aphanocladium dimorphum sp.nov.)。本文详细描述了该新种的形态,并对文中所提的五种真菌及其与Engyodontium属间的关系进行了讨论。

The causal fungus of a destroying disease——white-stem disease of wheat prevailing in the Qinghai-Xizang plateau of China has been previously misidentified as Selenophoma donacis (Pass.) Sprague et A. G. Johnson or S. donacis (Pass.) Sprague et A. G. Johnson var. stomaticola (Bauml.) Sprague et A. G. Johnson in this country. Now both taxa were transferred to the genus Pseudoseptoria owing to the annellidic conidiogenous cells found in their type specimens. A careful stndy of the white-stem disease fungus reveals...

The causal fungus of a destroying disease——white-stem disease of wheat prevailing in the Qinghai-Xizang plateau of China has been previously misidentified as Selenophoma donacis (Pass.) Sprague et A. G. Johnson or S. donacis (Pass.) Sprague et A. G. Johnson var. stomaticola (Bauml.) Sprague et A. G. Johnson in this country. Now both taxa were transferred to the genus Pseudoseptoria owing to the annellidic conidiogenous cells found in their type specimens. A careful stndy of the white-stem disease fungus reveals that its conidiogenous cells are phialidic and hence should be retained in Selenophoma. Since the present fungus differs from all known members of this genus, it is described as a new species named Selenophoma tritici sp. nov. Latin and Chinese descriptions, line drawings of the new species, as well as a photograph of the symptom of the disease are provided. Importance of the conidiogenous structure in modern taxonpmy of the imperfect fungi is also discussed. Type specimen of Selenophoma tritici is deposited in HMAS, Beijing, China.

五十年代以来,小麦白秆病先后发生于我国的四川、青海和西藏的高寒地区。由于是一种摧毁性病害,很快受到有关方面的研究,测定出有效的防治措施并推广,从而限制了该病的扩展和危害。但在病原菌方面,过去国内一些研究者虽先后几经研究,不仅未能获得统一的学名且有错误的鉴定。因此,有必要再研究,以便正确地识别此菌的分类位置。作者据川、青、藏高原收集到的该菌标本及培养物切片和染色进行镜检,观察到小麦白秆病菌的产孢结构是瓶梗型的,确实应隶属于壳月孢属(Selenophoma)内,并以此菌的形态特征也不同于壳月孢属内的其它种,因而认为是一新种——小麦壳月孢(Selenophoma tritici sp.nov.),文中对新种作了形态特征的汉文和拉丁文描述和附图。此外,还阐明了现代半知菌类分类中产孢细胞的特征的重要性。模式标本存放于中国科学院微生物研究所真菌标本室(HMAS)。

Fresh Contaminate specimens of Cordyceps sinensis (Berk.) Sacc.col- lected from Diqing Tibeten Austonompus Prefecture,Yunnan province,the contamina- tion were isolated and cultivated to obtain a pure species.It was identified as a new species of Tolypocladium namely Tolypocladlum sinanse C.L.Li.sp.nov.It forms phialides and phialospores in several agar media,the base of phialides are spherical or elliptical and terminated by slender,curved neck bearing globose to ovoid phialos- pores.The morphological characteristics...

Fresh Contaminate specimens of Cordyceps sinensis (Berk.) Sacc.col- lected from Diqing Tibeten Austonompus Prefecture,Yunnan province,the contamina- tion were isolated and cultivated to obtain a pure species.It was identified as a new species of Tolypocladium namely Tolypocladlum sinanse C.L.Li.sp.nov.It forms phialides and phialospores in several agar media,the base of phialides are spherical or elliptical and terminated by slender,curved neck bearing globose to ovoid phialos- pores.The morphological characteristics of the new species are given in comparison with other species of Tolypocladium,it is obviously different from other species of Tolypocladium in shape and size of phialospores as well as phialides,also hosts and habitats,therefore we consider Tolypocladium sinense as a new species The new species is cultivated by submerged culture in liquid medium composed of peptone,glucose,inorganic salt etc,at 26℃,pH5.2,on shakers for 12days.The fermentation broth was extracted with an equal volume of acetic ether and the orga niclayer was separated and evaporated under reduced pressure.In this way 1 liter of fermentation broth yield approximately 50—80 mg of crude materal of cyclosporin. The crude materal exhibit antifungal activity for strains of some imperfect fungi.

对云南省迪庆藏族自治州产的冬虫夏草 Cordyceps sinensis(Berk.)Sacc.进行分离获一纯种,经培养鉴定确为弯颈霉属 Tolypocladium w.Gams 一新种,命名为中国弯颈霉 To-lypocladium sinense c.L.Li sp.nov.。它在几种琼脂培养基上生长形成瓶梗及瓶梗孢于,瓶梗基部呈球形或椭圆形膨大,瓶颈细长而弯曲,瓶梗孢子球形至卵形。其形态特征及生活习性与弯颈霉属其它种类显然不同,故定为一新种。它在蛋白胨葡萄糖培养液中,温度26℃,pH5.2,摇瓶振荡培养12天。发酵液用乙酸乙酯萃取,减压蒸馏,从每升发酵液中获50—80mg 环孢菌素粗品。对几种半知真菌显示了明显的拮抗作用。

 
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