What Are Spores?

Spores are germ cells that can develop directly or indirectly into new individuals after leaving their parents. It is the product of mitosis or meiosis; most are haploid and a few are diploid. The spores are generally unicellular and may be multicellular propagules. Due to its different traits, differences in processes and structures have occurred, forming a diversity of spores. ^[1]

Biological (such as plants)

According to the spore shape, size and

There are two ways of spore formation: one is spores formed after mitosis, called mitoses; the other is spores produced by meiosis, called meiosis.

The plants of lower plants produce spores through mitosis, which can directly germinate to produce new plant individuals, whose progeny have the same genotype as the parent plant. This process belongs to the asexual reproduction category, so the filamentous spores are also called asexual spores. If the parent is a haploid plant (such as Chlamydomonas), the chromosomal ploidy of the mitochondrial spore is 1n; if the parent is a diploid plant (such as the water cloud of the brown algae), the chromosome ploidy is 2n. There are two types of filamentous spores: one is a flagellar swimmer, called zoospore; the other-a species that does not have flagella, can not swim, is called acinetospore. Due to different plant species and the time and location of spore occurrence, homospores have many different characteristics. ^[3]