蓝细菌和藻类之间的差异|比较类似术语之间的差异

这关键区别在蓝细菌和藻类之间cyanobacteria are a group ofprokaryotic藻类的细菌是小型真核植物样生物。

Photosynthesis是一个非常重要的过程，它将阳光的能量转化为碳水化合物的化学能。因此，正是这一过程允许某些生物制作自己的食物，而这些生物被称为光自人营养。同样，绿色植物，藻类和蓝细菌是三种类型的光自人为。在这三种类型中，蓝细菌是原核生物，是细菌。另一方面，绿色植物和藻类是真核生物。在考虑蓝细菌和藻类时，它们是微观生物，与绿色植物不同。然而，蓝细菌和藻类彼此之间的不同之处在于细胞组织。本文的目的是解释蓝细菌和藻类之间的差异。

内容

1.概述和关键差异
2.什么是蓝细菌
3。什么是藻类
4。蓝细菌和藻类之间的相似性
5。Side by Side Comparison – Cyanobacteria vs Algae in Tabular Form
6。概括

什么是蓝细菌?

Cyanobacteria are a group of bacteria. Their speciality is the ability of photosynthesis. They appear in blue-green colour, and they are also called blue-green bacteria. Cyanobacteria use carbon dioxide as the source of carbon. Moreover, photosynthesis first evolved in bacteria. Hence, it is highly probable that photosynthesis is first evolved in cyanobacteria. Thus, blue, green bacteria are present in the surface layers of seawater as well as in the surface layers of fresh water. They are also present on shaded soil, rocks, mud, wood and even on some living organisms.

Most of the cyanobacteria are unicellular forms. But some get together to form filaments which are enclosed by mucous. Two good examples for this situation areAnabaena和螺旋藻。Cyanobacteria are different from most other bacteria. More or less they resemble plants and algae as they can produce oxygen from water during photosynthesis. Photosynthetic pigments of cyanobacteria are present on photosynthetic membranes. Photosynthetic membranes run throughout the cytoplasm.叶绿素a是蓝细菌中存在的主要光合色素之一。另外，它们含有植物蛋白，这是一种蓝绿色的色素。蓝绿细菌的细胞比其他细菌的细胞更大。

Figure 01: Cyanobacteria

Moreover, some cyanobacteria can fix nitrogen from the atmosphere into ammonia. Ammonia then involves in the amino acid synthesis in them. For this purpose, cyanobacteria possess a special cell called heterocysts.Anabaena和Nostocare two types of nitrogen-fixing cyanobacteria.

什么是藻类？

Algae are the simplest plant-like organisms found in the aquatic environment, and resemble higher plants by the presence of chlorophyll and being photoautotrophic. The very primitive algae were unicellular, but with evolution, they developed into multicellular forms, which had vertical and horizontal systems. Even now algae are found in association with damp soil and aquatic environments, both freshwater and marine.

有不同alg组ae. In past classification systems, algae are included into 6 groups. Those are chlorophytes including green algae, euglenophytes, pyrrophyts, chrysophytes, phaeophytes including brown algae and rhodophytes including red algae. Algae as a group of plants show a wide variation in morphology. They are not only microscopic but also macroscopic. Their plant body could be unicellular, uninucleate, or unicellular multinucleate or multicellular multinucleate forms. Almost all of the multicellular forms show an undifferentiated body called thallus. The shape of the plant body could be filamentous, thalloid, globe-like, flattened or heterotrichous forms.

图2:藻类

Some algae are motile while some are not motile. Some are attached to a substrate with the help of a holdfast. Algae show different colours because they contain different combinations of pigments. Unicellular forms show greater variation in their size and shape of the chloroplast. Colony forms of algae are common in freshwater bodies. These are aggregations of cells having fixed number of cells. Reproduction in algae is complex because they show vegetative reproduction as well as sexual reproduction.

蓝细菌和藻类之间有什么相似之处？

Cyanobacteria and algae are photosynthetic organisms.
因此，它们可以将阳光转化为碳水化合物，并且都含有叶绿素a。
Furthermore, both are mostly aquatic organisms.
此外，它们是水生环境的主要生产商。
Besides, there are unicellular members in both groups.

蓝细菌和藻类有什么区别？

蓝细菌是一组可以光合作用的原核细菌。另一方面，藻类是像真核生物一样的小植物。这是蓝细菌和藻类之间的关键区别。此外，蓝细菌是单细胞的，而藻类大多是单细胞的，而存在几种多细胞形式。因此，这是蓝细菌和藻类之间的显着差异。蓝细菌和藻类之间的另一个区别是，蓝细菌属于王国Monera，而藻类属于王国Protista。

Moreover, cyanobacteria do not possess membrane-bound organelles and a nucleus. But, algae possess membrane-bound organelles and a nucleus. Therefore, it is an additional difference between cyanobacteria and algae. Most importantly, cyanobacteria can fix atmospheric nitrogen while algae are not able to fix nitrogen. Hence, this is also a difference between cyanobacteria and algae.

Below infographic on the difference between cyanobacteria and algae shows these differences comparatively.

摘要 - 蓝细菌与藻类

Cyanobacteria and algae are photosynthetic organisms. However, cyanobacteria are prokaryotic organisms while algae are eukaryotic organisms. This is the key difference between cyanobacteria and algae. Furthermore, cyanobacteria do not have a true nucleus and membrane-bound organelles. But, algae have a true nucleus and membrane-bound organelles such as chloroplasts, mitochondria, etc. Also, cyanobacteria contain chlorophyll a, phycocyanin and phycoerythrin while algae contain chlorophyll a and b, carotenoids and xanthophylls. This is the summary of the difference between cyanobacteria and algae.