go to jove.com

HIGH SCHOOL

Biology

Concept Videos

Microbiology

This is a free preview. For full access

Microbial Diversity

Fungi Structure, Reproduction, and Roles

Description

Fungi are eukaryotes that are more closely related to animals than to other eukaryotes. Their cell walls contain chitin, a polysaccharide that gives strength, and glucans, which add flexibility and support. Some fungi also use mannans and galactosans in place of, or along with, chitin. These features help fungi live in acidi...

Transcript

真菌是与动物亲缘关系较近的化能异养型真核生物。其细胞壁由几丁质提供强度,由葡聚糖提供柔韧性。

它们通常偏好酸性 pH 环境,并能耐受高渗透压。

真菌中的酵母为单细胞生物,但大多数真菌为多细胞生物。它们形成称为菌丝体的丝状菌丝网络,以吸收营养物质。

有隔菌丝具有分隔,而无隔菌丝是连续的。

大多数真菌不具有运动能力,壶菌门(Chytridiomycota)等早期演化支系除外。

真菌传统上根据其孢子和菌丝的结构与排列方式进行分类。

重要的类群包括微孢子虫门(Microsporidia)、壶菌门(Chytridiomycota)、接合菌门(Zygomycota)、球囊菌门(Glomeromycota)、子囊菌门(Ascom...