1.
The nature of the nutritional requirements for obligate parasites in nature is unknown.
人们还不知道自然界中专性寄生菌的营养要求的本质。
2.
host specificity of a parasite.
寄生虫寄主专一的特性。
3.
The other kind of study is that which has arisen from the recognition of host specialization by parasitic species.
另一类研究是由于寄生菌种对寄生专化性的认识而产生。
4.
Host specialization of strains is present in one geographical locality.
在某一地理场所菌系具有寄生主的专化性。
5.
facultative parasites
【生】兼性寄生物, 兼性寄生菌
6.
a facultative parasite can exist as a parasite or a saprophyte.
兼性寄生菌能够象寄生虫或腐生物一样生存。
7.
Characteristics of cucumber powdery mildew parasitized by Ampelomyces quisqualis
白粉寄生孢寄生黄瓜白粉菌的特性研究
8.
Study on Parasitic Fungi-Verticillium from Cereal Cyst Nematode(Heterodera Avenae);
禾谷孢囊线虫寄生性真菌-轮枝菌的初步研究
9.
Biological Evidences for the Primary Role of Aphid Flight Dispersal in the Dissemination of Obligate Aphid Pathogens (Entomophthorales);
蚜虫专化性病原真菌（虫霉目）随寄主迁飞扩散而传播流行的生物学实证研究
10.
A Novel Facultative Intracellular Bacterium-HLK1～T: The Ability and Mechanism of Invasion and Persistent Infection in Human Cells;
兼性胞内寄生菌HLK1～T对人宿主细胞的感染和持续性寄生的研究
11.
The Clone Growth Characters and Its Hyperparasitism on Rust of Hedysarum Scoparium;
花棒克隆生长特性及其锈病重寄生菌研究
12.
Studies on Forest Tree Parasitic Fungi Diversity in Lao-Ye-Ling Mountains, Jilin Province, China;
吉林省老爷岭林木寄生真菌多样性研究
13.
Characterization of Factors Affecting Activity of Chitinase Produced by Mycoparasite Coniothyrium minitans
影响重寄生真菌盾壳霉几丁质酶的活性因子
14.
The Parasitism of Gliocladium Roseum 67-1 Strain on Sclerotia of Sclerotinia Sclerotiorum and the Molecular Mechanism Involved;
粉红粘帚霉67-1菌株对核盘菌的寄生性及其分子机理
15.
Parasitic Fitness and Genetic Diversity in Sexual Hybridization F_2 of Setosphaeria Turcica;
玉米大斑病菌F_2代菌株的寄生适合度变异与遗传多态性
16.
virus parasitic in bacteria; multiplies within its host.
细菌中的寄生病毒，通过寄主繁殖。
17.
Studies on Physiological Characteristics, Pathogenicity of Phomopsis Vexans and Resistance of Eggplant to Eggplant Phomopsis Rot;
茄褐纹病菌生物学特性、致病性及寄主抗性机制的研究
18.
Biological Characteristic of Hyperparasitic Actinomyces F46 & PR and Control Effect to Postharvest Diseases;
重寄生放线菌F46和PR的生物学习性及对果、蔬采后病害的控制作用