|NOUN || a land plant | land plants |
NOUN article.ind sg | pl
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- The first land plants probably evolved from shallow freshwater charophyte algae much like "Chara" almost 500 million years ago.
- being isolated from arid land plants regulate endogenous hormone content and promote growth in crop plants.
- Coal is formed from buried prehistoric plants, and most diamonds that have been dated are far older than the first land plants.
- Some lineages of eukaryotes, such as land plants, do not have centrioles except in their motile male gametes.
- Like the land plants (embryophytes: bryophytes and tracheophytes), green algae (chlorophytes and charophytes besides embryophytes) contain chlorophyll a and chlorophyll b and store food as starch in their plastids.
- Among land plants, the contents of the chloroplast genome are fairly similar.
- Peat bogs hold approximately one-quarter of the carbon stored in land plants and soils.
- For example, mutualistic interactions are vital for terrestrial ecosystem function as about 80% of land plants species rely on mycorrhizal relationships with fungi to provide them with inorganic compounds and trace elements.
- Systematically they fall within the division Charophyta/Streptophyta, in which the land plants (Embryophyta) emerged.
- Attempts to understand the extraordinary variation in genome size (C-value)—animals vary 7,000 fold and land plants some 2,400-fold—has a long history in biology.
- Most land plants and land ecosystems rely on mutualism between the plants, which fix carbon from the air, and mycorrhyzal fungi, which help in extracting water and minerals from the ground.
- The first land plants evolved around 468 million years ago, they reproduced using spores.
- Starch is the characteristic energy store of most land plants and algae, while inulin, a polymer of fructose is used for the same purpose in the sunflower family Asteraceae.
- In land plants, the zygote is formed within a chamber called the archegonium.
- Some kinds of animals, such as amphibians, spend portions of their lives in water and portions on land. Plants such as kelp and algae grow in the water and are the basis for some underwater ecosystems.
- The life cycle of land plants involves alternation of generations between a sporophyte and a haploid gametophyte.
- This may be due to high seafloor spreading rates after the breakup of Precambrian supercontinents and the lack of land plants as a carbon sink.
- The evolution of land plants at the onset of the Devonian period caused a long term increase in planetary oxygen levels and reduction of [...] levels, which resulted in the late Paleozoic icehouse.
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