Definition and Taxonomic history
- Plants are eukaryotes that form the kingdom Plantae.
- They are predominantly photosynthetic organisms and use chloroplasts to produce sugars.
- Some plants are parasitic.
- The plant kingdom historically included algae and fungi, but current definitions exclude them.
- Aristotle classified living things into plants and animals based on their souls.
- Theophrastus continued Aristotle's work in plant taxonomy.
- Linnaeus created the modern system of scientific classification and named the plant kingdom Vegetabilia.
- There are about 382,000 accepted species of plants, with the majority producing seeds.
- Different green plant divisions have varying species count estimates.
Evolutionary history
- Land plants evolved from ancestors in water.
- The first land plants appeared around 450 million years ago.
- Complex plants may have developed over 1000 million years ago.
- Bryophytes, club mosses, and ferns appeared in the fossil record.
- Basic features of plants today, such as roots and leaves, were present by the end of the Devonian period.
Phylogeny
- A 2019 phylogeny based on genomes and transcriptomes proposed the relationship between plant species.
- Algal groups are supported by phylogenies based on genome sequencing.
- Chlorophyte algae and streptophyte algae are treated as paraphyletic in the analysis.
- The phylogeny includes the clade Viridiplantae, which consists of green algae and land plants.
- The clade Archaeplastida includes Viridiplantae, red algae, and glaucophytes.
Importance and uses
- Plants provide a substantial proportion of the world's molecular oxygen.
- They create sugars that supply energy for Earth's ecosystems.
- Humans use plants for food, building materials, ornaments, writing materials, and medicines.
- Grain, fruit, and vegetables have been domesticated for millennia.
- The scientific study of plants is known as botany.
Miscellaneous
- Plants can be parasitic and obtain energy from other plants or fungi.
- Plants historically included algae and fungi, but current definitions exclude them.
Plant Mentions
https://alternix.com/blogs/news/quitting-smoking-can-nicotine-pouches-help-you-kick-the-habithttps://alternix.com/blogs/news/understanding-nicotine-strengths-in-pouches
https://alternix.com/blogs/news/nicotine-pouches-vs-snus-difference-between-snus-and-nicotine-pouches
https://alternix.com/blogs/news/the-benefits-of-nicotine-pouches
https://alternix.com/blogs/news/how-to-use-a-nicotine-pouch
https://alternix.com/blogs/news/what-are-nicotine-pouches
Plant Data Sources
Reference | URL |
---|---|
Glossary | https://www.alternix.com/blogs/glossary-of-terms/plant |
Wikipedia | http://en.wikipedia.org/wiki/Plant |
Wikidata | https://www.wikidata.org/wiki/Q756 |
Knowledge Graph | https://www.google.com/search?kgmid=/m/05s2s |