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。
host specificity of a parasite.
寄生虫寄主专一的特性。
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。
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。
facultative parasites
【生】兼性寄生物, 兼性寄生菌
Studies on Biological and Parasitized Characteristics of Ampelomyces Quisqualis;
白粉寄生孢生物学及其寄生特性研究
Biology and Host Specificity of Gallerucida Bifasciata (Coleoptera: Chrysomelidae) and Apoderus Bicallosicollis (Coleoptera: Attelabidae);
二纹柱萤叶甲与乌桕卷象的生物学及寄主专一性研究
biology of entamoeba histolytica
寄生性变形虫生物学
Parasitic and nonparasitic cysts rarely occur in the spleen.
寄生虫性和非寄生虫性囊肿在脾脏很少发生。
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。
parasitic leiomyoma of uterus
寄生性子宫平滑肌瘤
What is a facultative parasite?
兼性寄生物是甚麽?
Studies on the Host Specificity and Formation Mechamism of Cotton Aphid, Aphis Gossypii Glover;
棉蚜寄主专化性及其形成机制的研究
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
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
An organism that can live either independently or as a parasite.
半寄生物,兼性寄生物一种微生物,既可独立生存,又可作为寄生虫生存
Development of Parasites Identifying Expert System for Livestock and Poultry in China;
中国畜禽寄生虫分类鉴定专家系统初步研究
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
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