Term
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Definition
| increase in the number of individuals (unicells, colonies, multicellular) by mitosis |
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Term
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Definition
| separation from parental thallus; cell wall material of parent incorporated into new plant |
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Term
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Definition
| release of specialized portion of thallus |
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Term
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Definition
| specialized multicellular units, e.g. Sphacelaria (brown) |
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Term
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Definition
| simple cell division of unicells (mitosis), some would call this asexual reproduction |
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Term
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Definition
| involves formation of specialized spores (walls not parental). Mitotic, does not involve recombination of genetic material. Net result is the production of individuals identical to parent (Òrecycling a phaseÓ). |
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Term
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Definition
| (w/ flagella) motile unicells |
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Term
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Definition
| (w/o flagella) nonmotile cells |
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Term
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Definition
| usually identical to the cell from which it was derived |
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Term
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Definition
| with thick wall many times a resting stage |
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Term
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Definition
| one formed per sporangium (reds and greens) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| more than four per sporangium |
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Term
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Definition
| unicellular or multicellular structures that produce and hold spores |
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Term
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Definition
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Term
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Definition
| reduction division, assortment and recombination of genetic material. Results in usually 4 haploid individuals or nuclei equivalents, the fate of which varies. |
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Term
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Definition
| gamete fusion, two events, may be temporally separated |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| fusion of two haploid nuclei to form one individual |
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Term
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Definition
| specialized structures that produce gametes; slightly or highly modified vegetative cells |
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Term
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Definition
| oogonium in oogamous algae. Carpogonium in some red algae where gametangium are highly specialized |
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Term
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Definition
| antheridia; spermatangia in reds |
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Term
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Definition
| both gametangia are on the same individual |
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Term
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Definition
| gametangium are on separate individuals |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| fusion of two morphologically similar gametes; physiological, biochemical, or ultrastructural differences may be present |
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Term
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Definition
| fusion of dissimilar gametes |
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Term
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Definition
| different size, male usually smaller |
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Term
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Definition
| gametes different sizes, male is motile and smaller, female is large and non-motile (egg). Usually egg not liberated prior to syngamy. In situ fertilization |
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