thallophyte

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thallophyte,

common name for members of the Thallophyta (or Thallobionta), a taxonomic group in some archaic classification systems that comprised algaealgae
[plural of Lat. alga=seaweed], a large and diverse group of primarily aquatic plantlike organisms. These organisms were previously classified as a primitive subkingdom of the plant kingdom, the thallophytes (plants that lack true roots, stems, leaves, and flowers).
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, fungiFungi
, kingdom of heterotrophic single-celled, multinucleated, or multicellular organisms, including yeasts, molds, and mushrooms. The organisms live as parasites, symbionts, or saprobes (see saprophyte).
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, and lichenslichen
, usually slow-growing organism of simple structure, composed of fungi (see Fungi) and photosynthetic green algae or cyanobacteria living together in a symbiotic relationship and resulting in a structure that resembles neither constituent.
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. The thallophytes were considered lower plantsplant,
any organism of the plant kingdom, as opposed to one of the animal kingdom or of the kingdoms Fungi, Protista, or Monera in the five-kingdom system of classification.
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 and were grouped together because of they consisted of one cell or a relatively undifferentiated mass of cells called a thallus, instead of having an organized plant body (stem, root, and leaf).

Thallophyte

 

a lower plant (an alga, fungus, or lichen) whose body is not divided into stem and leaves but consists of a thallus. (A plant whose body is divided into stem and leaves is a cormophyte.) Some algae, for example, Caulerpa, Macrocystis, and Sargassum, are externally differentiated into stem and leaf organs, but the anatomic structure of these organs is less complex than in higher plants.

References in periodicals archive ?
2006a and b), the castor plants compensated for a lower plant population with a high number of racemes per plant and seeds per raceme in such a way that confined the seed and oil yields to a narrow range.
Conclusion: Lower plants extracts were reported to exhibit better interactions with the taxol and epothilone binding sites.
Generally, AFIS mean fiber lengths were longer in the lower plant densities in the midcanopy region (Fig.
However, this cannot explain the greater species richness of parasites and predators in plots with greater rates of historical fertilization and lower plant species richness [ILLUSTRATION FOR FIGURES 4C, D OMITTED].
2008), who observed longer shoot length with lower plant density (3 plants per container) for in vitro cultures of Cattleya loddigesii.
However, due to lower plant availability at the acquired Sundance PPA units, other plant derates and lower Alberta wind generation, overall electricity generation production was below expectations.
Some consequences of the removal of upper leaves and male inflorescence include better penetration of light into crop cover, lower plant lodging, less competition between male inflorescence and cab over assimilates as well as some responses of the plant to stress such as assimilate remobilization from stem and leaves to grains, higher photosynthesis efficiency of remaining leaves, higher chlorophyll concentration, the activity of PEP carboxylase and so on [4].
05) lower plant height, fresh and dry weights of the maize under soil only (control) as shown on Tables 1 and 2 and Figure 1.
56 g for Remont), as well as lower plant mortality (55.
2], providing the lower plant with ample quantities of a key raw material.
However, due to lower plant availability at the acquired Sundance PPA units, other plant derates, and lower Alberta wind generation, overall electricity generation production was below expectations.