Dictionary » C » C3 plant

C3 plant

Definition

noun

(botany)

(1) A plant that utilizes the C3 carbon fixation pathway as the sole mechanism to convert CO2 into an organic compound (i.e. 3-phosphogylycerate).

(2) A plant in which the CO2 is first fixed into a compound containing three carbon atoms before entering the Calvin cycle of photosynthesis.


Supplement

C3 plants involve direct carbon fixation of CO2. That is, the initial steps involve the CO2 being bound to ribulose bisphosphate to produce two molecules of three-carbon compound (i.e. 3-phosphogylycerate). The key enzyme that catalyzes carbon fixation is rubisco.

C3 plants must however be in areas where CO2 concentration is high, temperature and light intensity are moderate, and ground water is abundant. This is because in hot areas, the stomata are closed to prevent water loss. However, it results in the rise of O2 level. When this occurs, rubisco reacts with O2 instead of CO2, and leads to photorespiration, which in turn, causes wasteful loss of CO2 in C3 plants.

Examples of C3 plants include most broadleaf plants and plants in the temperate zones.


Compare: C4 plant, CAM plant.
See also: C3 carbon fixation pathway, Calvin cycle.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Help with the basic understanding of Ecosystems

... states that an ecosystem is a community interacting with the environment in an area. Environment = the conditions in which a person, animal, or plant lives or operates. So do different ecosystems have different environments? Like would a small pond IN a forest be two separate ecosystems? Or ...

See entire post
by gooner97
Tue Sep 02, 2014 6:05 pm
 
Forum: Ecology
Topic: Help with the basic understanding of Ecosystems
Replies: 0
Views: 84

ICG-9 (International Conference on Genomics)

... for innovators and entrepreneurs. ICG aims at gathering leaders, researchers and professionals in omics sciences on human health, animal and plant science, agriculture and other related fields, to share thoughts and implications on the latest developments in the world of genomics. Since its ...

See entire post
by BessChan
Wed Jul 30, 2014 2:53 am
 
Forum: General Discussion
Topic: ICG-9 (International Conference on Genomics)
Replies: 0
Views: 328

Cannabis regeneration technique

I'm looking to get some opinions on the below questions if there are any cannabis enthusiasts that know a little bit about this plant's biology. 1. So, from what I understand regenerating a marijuana plant goes something like this: you chop the top 2/3 or 3/4 of the plant and leave the ...

See entire post
by Yolanda89
Sun Jul 27, 2014 5:21 pm
 
Forum: Botany Discussion
Topic: Cannabis regeneration technique
Replies: 0
Views: 456

cell plate formation

During the division of plant cell, the cell plate form exactly or approximately at the center of dividing cell. What process position cell plate to the center of the cell.

See entire post
by josem
Wed Jul 23, 2014 7:14 pm
 
Forum: Cell Biology
Topic: cell plate formation
Replies: 0
Views: 461

How much CO²/O² does lettuce consume/produce on average?

Hello, I'm trying to simulate a small closed biosphere, using lettuce (or any other small edible plant). I'd like to have my numbers as close to reality as possible. I already searched the web for the past few hours, but could not find anything useful. So I'm totally reliant ...

See entire post
by keks
Wed Jul 02, 2014 3:49 am
 
Forum: Botany Discussion
Topic: How much CO²/O² does lettuce consume/produce on average?
Replies: 0
Views: 314
View all matching forum results

This page was last modified 10:40, 29 August 2008. This page has been accessed 98,767 times. 
What links here | Related changes | Permanent link