go to jove.com

HIGH SCHOOL

Biology

Concept Videos

Microbiology

This is a free preview. For full access

Microbial Diversity

Red Algae Pigments, Shapes, and Uses

Description

Red algae are phototrophic organisms found mostly in marine environments. Some species also live in freshwater or on land. They may be unicellular or multicellular, and some multicellular forms grow large enough to be seen easily.

These algae contain chlorophyll a, but their chloroplasts do not c...

Transcript

红藻或红藻植物属于原始色素体生物界中的红藻门。

它们栖息于陆地、淡水和海洋生态系统。

它们通常因其藻胆体中存在的藻红蛋白色素而呈现红色。

红藻为光能自养生物,主要利用叶绿素a进行光合作用。

单细胞红藻包括以下属 Cyanidioschyzon Galdieria它们在温度范围为30 °C至60 °C、pH值低至0.5至4.0的环境中生长旺盛。

一些 Galdieria 某些物种甚至能在完全黑暗的环境中生长。

Cyanidioschyzon merolae 直径仅为1至2 μm,具有约16.5兆碱基对的真核生物中最小的基因组之一。

一些红藻物种,...