Archaeplastida

From WikiMD's Wellness Encyclopedia

Archaeplastida is a major group of eukaryotes, comprising the red algae (Rhodophyta), the green algae, and the land plants, along with a small group of freshwater unicellular algae called glaucophytes. The Archaeplastida have chloroplasts that are surrounded by two membranes, suggesting that they were acquired directly by endosymbiosis of a cyanobacterium.

Classification[edit | edit source]

The Archaeplastida are a sister group to the Chromista and both groups are combined into the Bikonta. The name Archaeplastida comes from the ancient plastid (chloroplast) in their cells, which is a result of the endosymbiotic event.

Characteristics[edit | edit source]

Archaeplastida are autotrophic organisms with chloroplasts that carry out photosynthesis. They are generally immobile and are bound by a cell wall which prevents them from over expanding when water enters their cells.

Evolution[edit | edit source]

The first evidence of the Archaeplastida lineage is represented by fossil stromatolites, which are microbial mats created by photosynthetic bacteria, dating back 3.5 billion years.

See also[edit | edit source]

References[edit | edit source]


Archaeplastida Resources
Wikipedia
WikiMD
Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Search WikiMD

Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD

WikiMD's Wellness Encyclopedia

Let Food Be Thy Medicine
Medicine Thy Food - Hippocrates

Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.

Contributors: Prab R. Tumpati, MD