Spore | Definition, Types, & Examples (2024)

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Spore | Definition, Types, & Examples? ›

A usually one-celled reproductive body that can grow into a new organism without uniting with another cell. Spores are haploid (having only a single set of chromosomes). Fungi, algae, seedless plants, and certain protozoans reproduce asexually by spores.

Examples of spores can be listed based on the organisms producing them. For instance, fungi spores include zygospores, basidiospores, conidiophores, and ascospores. Bacteria spores include endospores, exospores, and myxospores. Spores produced by higher plants are microspores and megaspores.

Asexual reproduction is by the production of different types of spores, the most common being the zoospores. They are flagellated (motile) and on germination gives rise to new plants. Some green algae produce nonmotile spores called aplanospores.

Some red algae produce monospores (walled, nonflagellate, spherical cells) that are carried by water currents and upon germination produce a new organism. Some green algae produce nonmotile spores called aplanospores, while others produce zoospores, which lack true cell walls and bear one or more flagella.

Ferns, lycophytes, mosses, liverworts, and hornworts (the latter three are collectively termed bryophytes) reproduce via spores.

Spore-forming bacteria include Bacillus (aerobic) and Clostridium (anaerobic) species. The spores of these species are dormant bodies that carry all the genetic material as is found in the vegetative form, but do not have an active metabolism.

Molds spread by producing tiny reproductive cells called spores that waft through the air. Mold spores usually cannot be seen without magnification (ranging in size from 2-10 um) and are naturally present in both indoor and outdoor air.

Unlike fungal spores, where one fungus can make many spores, bacterial endospores are a "one cell makes one endospore" affair. Endospores exhibit no signs of life, however when the environment returns to a favorable state for bacterial growth the bacterial endospore will germinate and return to a normal state.

Meagspores and microspores are the two types of spores.

Spores are most conspicuous in the non-seed-bearing plants, including liverworts, hornworts, mosses, and ferns. In these lower plants, as in fungi, the spores function much like seeds. In general, the parent plant sheds the spores locally; the spore-generating organs are frequently located on the undersides of leaves.

What is the new plant from spore? ›

Under favourable conditions, the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes. Two gametes fuse to form a zygote, which develops into a new sporophyte. This cycle is known as alternation of generations.

Stages. Spore is a game that is separated into stages, each stage presenting a different type of experience with different goals to achieve. The five stages are the Cell Stage, the Creature Stage, the Tribal Stage, the Civilization Stage, and the Space Stage.

Types of fungus spores can be categorised into asexual (mitospores) and sexual (meiospores). Examples of mitospores include conidia, arthrospores, chlamydospores, and sporangiospores. Examples of meiospores are ascospores, basidiospores and zygospores.

Some types of asexual spores in fungi reproduction include Conidia, Sporangiospores, Blastospores, Arthrospores, and Chlamydospores.

E.g., Bacillus, Clostridium. In plants, spore formation is the sole means of asexual reproduction. Plants follow an alternation of generation life cycle, where diploid sporophyte produces haploid spores and ultimately gives rise to haploid gametophyte. E.g., liverworts, mosses and hornworts.